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Инструкция Baxi Instruction Baxi Assure split installation manual
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MW-1001614-2 MW-1001614-2 00 6 en Installation and Service Manual Air/water "Split Inverter" heat pump Baxi Assure Assure AWHP-IDU 4–8 E
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Contents 1 Safety instructions and recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.1 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.2 General instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 1.3 Electrical safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 1.4 Refrigerant safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 1.5 Domestic water safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 1.6 Hydraulic safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 1.7 Recommendations for the installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 1.8 Specific instructions for service, maintenance and breakdowns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 1.9 Liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 2 Symbols used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 2.1 Symbols used in the manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 2.2 Symbols used on the appliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 2.3 Symbols used on the data plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3 Technical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 3.1 Homologations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 3.1.1 Directives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 3.1.2 EC Declaration of Conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 3.1.3 Factory test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 3.2 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 3.2.1 Compatible heating devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 3.2.2 Heat pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 3.2.3 Heat pump weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 3.2.4 Combination heaters with medium-temperature heat pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 3.2.5 Sensor specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 3.2.6 Circulating pumps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 3.3 Dimensions and connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 3.3.1 Indoor unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 3.3.2 AWHP 4.5 MR outdoor unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 3.3.3 AWHP 6 MR-3 outdoor unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 3.3.4 AWHP 8 MR-2 outdoor unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 3.4 Electrical diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 4 Description of the product . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 4.1 Operating principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 4.2 Main components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 4.3 Standard delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 5 Connecting diagrams and configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 5.1 Installation with electrical back-up, two circuits and a domestic hot water tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 5.1.1 Make the electrical connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22 5.1.2 Applying the parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 5.2 Connecting a swimming pool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 6 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 6.1 Installation regulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 6.2 Data Plates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 6.2.1 Data plate on the indoor module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 6.2.2 Data plate on the outdoor unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 6.3 Respecting the distance between the indoor module and the outdoor unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 6.4 Positioning the indoor unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27 6.4.1 Allowing sufficient space for the indoor module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27 6.4.2 Fitting the assembly rail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28 6.4.3 Mounting the unit on the wall . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28 6.5 Putting the outdoor unit in place . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 6.5.1 Allowing sufficient space for the outdoor unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 6.5.2 Selecting the location of the outdoor unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29 6.5.3 Choosing the location of a noise abatement screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 6.5.4 Selecting the location of the outdoor unit in cold and snowy regions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 6.5.5 Installing the outdoor unit on the ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 6.6 Hydraulic connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31 6.6.1 Special precautions for the connection of the heating circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31 Contents 2 7762758 - v05 - 19082020
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6.6.2 Connecting the heating circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 6.6.3 Connecting the safety valve drain pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 6.7 Refrigeration connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 6.7.1 Preparing the refrigerant connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 6.7.2 Connect the refrigerant connections to the indoor unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 6.7.3 Connecting the refrigerant connections to the outdoor unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34 6.7.4 Adding the necessary quantity of refrigerant fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 6.7.5 Testing the leak-tightness of the refrigerant connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 6.7.6 Evacuation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35 6.7.7 Opening the stop valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 6.8 Electrical connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 6.8.1 Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36 6.8.2 Recommended cable cross section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37 6.8.3 Routing the cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38 6.8.4 Description of the connection terminal blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 6.8.5 Accessing the PCBs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 6.8.6 Connecting the cables to the PCBs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42 6.8.7 Electrically connecting the outdoor unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 6.8.8 Connecting the indoor module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44 6.8.9 Connecting the outdoor unit bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 6.8.10 Fitting the outdoor sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 6.8.11 Connecting the outdoor temperature sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 6.8.12 Connecting and configuring the electrical back-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 6.9 Connecting options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 6.9.1 Connecting an on/off or modulating thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49 6.9.2 Configuring a thermostat with a heating/cooling control contact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 6.10 Filling the heating circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 6.10.1 Flushing new installations and installations less than 6 months old . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 6.10.2 Flushing an existing installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51 6.11 Filling the installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51 6.11.1 Treatment of the heating water . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 7 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 7.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 7.2 Checklist before commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 7.2.1 Checking the heating circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53 7.2.2 Checking the electrical connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 7.2.3 Checking the refrigeration circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 7.3 Commissioning procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 7.3.1 Configuration numbers CN1 et CN2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 7.4 Final instructions for commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 8 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56 8.1 Use of the control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 8.1.1 Description of the user interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 8.1.2 Description of the home screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56 8.2 Starting and stopping the heat pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 8.2.1 Starting the heat pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 8.2.2 Shutting down the heat pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 9 Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58 9.1 Accessing the Installer level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58 9.2 Setting the parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58 9.2.1 Setting the heating curve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58 9.2.2 Saving the installer details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58 9.2.3 Saving the commissioning settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58 9.2.4 Resetting or re-establishing the parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 9.2.5 Improving heating comfort . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 9.2.6 Improving domestic hot water comfort . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60 9.2.7 Drying screed with an outdoor unit connected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60 9.2.8 Drying screed without the heat pump outdoor unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 9.2.9 Installing a buffer tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62 9.2.10 Configuring the buffer tank for storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63 9.2.11 Configuring and using the CB04 auto-filling option kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 9.2.12 Supplying the heat pump with photovoltaic energy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66 9.2.13 Reducing the noise level of the outdoor unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67 Contents 7762758 - v05 - 19082020 3
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9.3 Menu tree On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67 9.4 List of parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67 9.4.1 Installation Setup > CIRCA0 > Parameters, counters, signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67 9.4.2 Installation Setup > Stratified DHW tank > Parameters, counters, signals . . . . . . . . . . . . . . . . . . . . . . . . . . 68 9.4.3 Installation Setup > CIRCA1/CIRCB1/DHW1/CIRCC1/CIRCAUX1 > Parameters, counters, signals > . . . . 69 9.4.4 Installation Setup > Air Src heat pump > Parameters, counters, signals . . . . . . . . . . . . . . . . . . . . . . . . . . . .71 9.4.5 Installation Setup > Cascade management B > Parameters, counters, signals . . . . . . . . . . . . . . . . . . . . . . 73 9.4.6 Installation Setup > Outside temp > Parameters, counters, signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 9.4.7 Installation Setup > Digital input > Parameters, counters, signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74 9.4.8 Installation Setup > Analogue input > Parameters, counters, signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 9.4.9 Installation Setup > 0-10 V input > Parameters, counters, signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 9.4.10 Installation Setup > Appliance status > Parameters, counters, signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . .76 9.5 Description of the parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .76 9.5.1 Running the back-up in heating mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .76 9.5.2 Running the back-up in domestic hot water mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78 9.5.3 Operation of the switch between heating and production of domestic hot water . . . . . . . . . . . . . . . . . . . . . .80 10 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82 10.1 Accessing information on the hardware and software versions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82 10.2 Configuring the maintenance message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82 10.3 Checking operation of the appliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .82 10.4 Standard inspection and maintenance operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83 10.4.1 Checking the safety components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .83 10.4.2 Check the hydraulic pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83 10.4.3 Cleaning the casing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83 10.5 Cleaning the magnetic filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83 10.5.1 Magnetic filter annual maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .84 10.5.2 Full cleaning of the magnetic filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85 10.6 Specific maintenance operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87 10.6.1 Draining the heating circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87 10.6.2 Replacing the battery in the control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87 11 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .88 11.1 Resetting the safety thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88 11.2 Resolving operating errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88 11.2.1 Types of error code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88 11.2.2 Error codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88 11.2.3 SCB-10 error codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .91 11.2.4 Fault codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93 11.2.5 EHC–05 alarm codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .93 11.2.6 SCB-10 alarm codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94 11.3 Displaying and clearing the error memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94 12 Decommissioning and disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .95 12.1 Decommissioning procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .95 12.2 Disposal and recycling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 13 Spare parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 13.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 13.2 Indoor unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 13.2.1 Casing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 13.2.2 Control system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .97 13.2.3 Other components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99 13.3 Outdoor unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102 13.3.1 AWHP 4.5 MR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102 13.3.2 AWHP 6 MR-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103 13.3.3 AWHP 8 MR-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106 14 Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109 Contents 4 7762758 - v05 - 19082020
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1 Safety instructions and recommendations 1.1 Safety Operation Danger This appliance can be used by children aged from 8 years and above and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and understand the haz ards involved. Children shall not play with the appliance. Cleaning and user maintenance shall not be made by children without supervision. Electrical The appliance is intended to be permanently connected to the domestic water mains network. Before any work on the appliance, carefully read all documents that accompa ny the product. These documents are also available on our website. See the last page. Install the appliance in accordance with national rules on electrical installation. A disconnection device must be fitted to the fixed wiring in accordance with in stallation rules. If a power supply cable comes with the appliance and it turns out to be dam aged, it must be replaced by the manufacturer, its after sales service or per sons with similar qualifications in order to obviate any danger. If the appliance is not wired in the factory, carry out the wiring according to the wiring diagram described in the chapter Electrical Connections. See the Instal lation and Service Manual. This appliance must be connected to the protective earthing. Earthing must comply with the prevailing installation standards. Earth the appliance before making any electrical connections. Type and calibre of the protective equipment: refer to the "Recommended ca ble cross-sections" chapter. See the Installation and Service Manual. To connect the appliance to the electricity mains, refer to the chapter Electrical Connections. See the Installation and Service Manual. In order to prevent any danger owing to the unexpected reset of the thermal circuit breaker, this appliance must not be powered through an external switch, such as a timer, or be connected to a circuit which is regularly switched on and off by the electricity provider. 1 Safety instructions and recommendations 7762758 - v05 - 19082020 5
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Domestic wa ter Caution Draining the domestic hot water tank: 1. Shut off the domestic cold water inlet. 2. Open a hot water tap in the installation. 3. Open a valve on the safety unit. 4. When the water stops flowing, the domestic hot water tank has been drained. Caution The pressure limiter device (safety valve or safety unit) must be regularly operated in order to remove limescale deposits and ensure that it is not blocked. A pressure limiter device must be fitted to a discharge pipe. As water may flow out of the discharge pipe on the pressure limiter device, the pipe must be kept open to the air, in a frost-free environment, and at a continuous downward gradi ent. A pressure reducer (not provided) is required when the sup ply pressure exceeds 80% of the pressure limiter device cal ibration and must be located upstream of the appliance. There must be no cut-off devices between the pressure lim iter device and the domestic hot water tank. To ascertain the type, specifications and connection of the pressure limiter device, refer to the chapter Connecting the Domestic Hot Water Tank to the Drinking Water Mains in the Installation and Service Manual. Hydraulics Caution Respect the minimum and maximum water pressure and tem perature to ensure the appliance operates correctly. See chapter on Technical Specifications. Installation Important Allow the space required to install the appliance correctly, re ferring to the chapter Dimensions of the Appliance. See the Installation and Service Manual. 1.2 General instructions The system must satisfy each point in the rules in force in the country that govern works and interventions in individual homes, blocks of flats or other buildings. Only qualified professionals are authorised to work on the appliance and the heating installation. They must respect prevailing local and national regulations during fitting, installation and maintenance of the installation. Commissioning must be performed by a qualified professional. 1.3 Electrical safety Before making any electrical connections, earth the appliance in accordance with prevailing standards. 1 Safety instructions and recommendations 6 7762758 - v05 - 19082020
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Danger Danger of electric shock: the length of the conductors between the traction arrester device and the terminal blocks must be such that the active conductors are put under tension before the earth conductor. Only qualified professionals may carry out electrical connections, always with the power off. Separate the very low voltage cables from the 230/400 V power supply cables. 1.4 Refrigerant safety Warning Refrigerant fluid and pipes: Use only R410A refrigerant fluid to fill the installation. Use tools and pipe components especially designed for use with R410A refrigerant fluid. Use copper pipes deoxidised with phosphorus to carry the refrigerant fluid. Store the refrigerant connection pipes away from dust and humidity (risk of damage to the compressor). Do not use a load cylinder. Protect the heat pump components, including the insulation and structural elements. Do not overheat the pipes as brazed components may cause damage. Contact between the refrigerant fluid and a flame may result in emissions of toxic gases. All work on the refrigeration circuit must be done by a qualified professional, according to prevailing codes of practice and safety in the profession (recovery of the refrigerant, brazing under nitrogen). All brazing work must be done by qualified welders. Do not touch the refrigeration connection pipes with your bare hands while the heat pump is running. Danger of burn or frost injury. In the event of a refrigerant leakage: 1. Switch off the appliance. 2. Open the windows. 3. Do not use a naked flame, do not smoke, do not operate electrical contacts. 4. Avoid contact with the refrigerant. Danger of frost injuries. Locate the probable leak and seal it immediately. Use only original parts to replace a defective refrigeration component. Use only dehydrated nitrogen for detecting leaks or for pressurised tests. Do not allow the refrigerant fluid to escape into the atmosphere. 1.5 Domestic water safety In accordance with safety rules, a safety valve calibrated to 0.7 MPa (7 bar) is mounted on the tank's domestic cold water inlet. A pressure reducer (not provided) is required when the supply pressure exceeds 80% of the safety valve or safety unit calibration and must be located upstream of the appliance. There must be no cut-off devices between the safety valve or unit and the domestic hot water tank. The hydraulic installation must be capable of handling a minimum flow rate at all times. Heating water and domestic water must not come into contact with each other. Domestic water must not circulate through the exchanger. 1 Safety instructions and recommendations 7762758 - v05 - 19082020 7
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Limit temperature at the draw-off point: the maximum domestic hot water temperature at the draw-off point is subject to special regulations in the various countries in which the appliance is sold in order to protect the user. These special regulations be observed when installing the appliance. Take precautions with the domestic hot water. Depending on the heat pump settings, the domestic hot water temperature may exceed 65°C. In order to limit the risk of being scalded, a thermostatic mixing valve must be installed on the domestic hot water flow pipes. 1.6 Hydraulic safety When making the hydraulic connection, it is imperative that the standards and corresponding local directives be respected. If radiators are connected directly to the heating circuit: install a differential valve between the indoor unit and the heating circuit. Fit drainage valves between the indoor unit and the heating circuit. Do not add any chemical products to the heating water without first consulting a water treatment specialist. For example: antifreeze, water softeners, products to increase or reduce the pH value, chemical additives and/or inhibitors. These may cause faults in the heat pump and damage the heat exchanger. 1.7 Recommendations for the installation Install the heat pump's indoor unit in a frost-free location. Insulate the pipes to reduce heat losses to a minimum. Apply refrigerant oil to the flared parts to facilitate tightening and improve the seal. Keep this document close to the place where the appliance is installed. Do not make any modifications to the heat pump without the written consent of the manufacturer. To benefit from extended warranty cover, no modifications should be made to the appliance. Install the heat pump indoor unit and outdoor unit on a solid, stable structure able to bear its weight. Do not install the heat pump in a place that has an atmosphere with a high salt content. Do not install the heat pump in a place exposed to steam and combustion gases. Do not install the heat pump in a place that may be covered in snow. 1.8 Specific instructions for service, maintenance and breakdowns Maintenance work must be carried out by a qualified professional. Only a qualified professional is authorised to set, correct or replace the safety devices. Before any work, switch off the power supply to the heat pump, the indoor unit and the electrical back-up. Wait for approx. 20-30 seconds for the outdoor unit capacitors to be discharged, and check that the lights on the outdoor unit PCBs have gone out. Before working on the refrigeration circuit, switch off the appliance and wait a few minutes. Certain items of equipment such as the compressor and the pipes can reach temperatures in excess of 100°C and high pressures, which may cause serious injuries. Locate and correct the cause of power cut before resetting the safety thermostat. Only genuine spare parts may be used. 1 Safety instructions and recommendations 8 7762758 - v05 - 19082020
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Removal and disposal of the heat pump must be carried out by a qualified professional in accordance with prevailing local and national regulations. After maintenance or repair work, check the entire heating system to ensure that there are no leaks. Remove the casing only to perform maintenance and repair work. Put the casing back in place after maintenance and repair work. For heat pumps with a refrigerant fluid load of more than 5 tonnes of CO2 equivalent, the user must have an annual leak-tightness test performed on the refrigerant equipment. 1.9 Liabilities Tab.1 Manufacturer's liability Our products are manufactured in compliance with the requirements of the various Di rectives applicable. They are therefore delivered with the marking and any docu ments necessary. In the interests of the quality of our products, we strive constantly to improve them. We therefore reserve the right to modify the specifications given in this document. Our liability as manufacturer may not be invoked in the following cases: Failure to abide by the instructions on installing the appliance. Failure to abide by the instructions on using the appliance. Faulty or insufficient maintenance of the appliance. Installer's liability The installer is responsible for the installation and initial commissioning of the appliance. The installer must observe the following instructions: Read and follow the instructions given in the manuals provided with the appliance. Install the appliance in compliance with prevailing legislation and standards. Carry out initial commissioning and any checks necessary. Explain the installation to the user. If maintenance is necessary, warn the user of the obligation to check the appliance and keep it in good working order. Give all the instruction manuals to the user. 1 Safety instructions and recommendations 7762758 - v05 - 19082020 9
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2 Symbols used 2.1 Symbols used in the manual This manual uses various danger levels to draw attention to special instructions. We do this to improve user safety, to prevent problems and to guarantee correct operation of the appliance. Danger Risk of dangerous situations that may result in serious personal injury. Danger of electric shock Risk of electric shock. Warning Risk of dangerous situations that may result in minor personal injury. Caution Risk of material damage. Important Please note: important information. See Reference to other manuals or pages in this manual. 2.2 Symbols used on the appliance Caution: danger of electric shock 1 Disconnect the mains power prior to carrying out any work. 2 Work on the appliance is only authorised if carried out by a qualified engineer 1 CIRCA0 heating circuit flow 2 CIRCA0 heating circuit return 3 CIRCB1 heating circuit flow 4 CIRCB1 heating circuit return 5 Refrigeration fluid connection - liquid line 6 Refrigeration fluid connection - gas line 7 Safety extra-low voltage power supply cable 8 Power supply cable 230 V / 400 V 9 Power cord 230 V 2.3 Symbols used on the data plate 1 Information concerning the heat pump: refrigerant type, maximum allowable operating pressure 2 The symbol indicates compatibility with the Baxi uSense connected thermostat. 3 Information on the electrical back-up: power supply and maximum output 4 Before installing and commissioning the appliance, carefully read the instruction manuals provided 5 Dispose of used products in an appropriate recovery and recycling structure Fig.1 1 2 M002628-A Fig.2 MW-1001193-1 A A 1 B 3 6 2 B 4 7 9 8 5 Fig.3 MW-1001191-2 1 2 3 4 5 2 Symbols used 10 7762758 - v05 - 19082020
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3 Technical specifications 3.1 Homologations 3.1.1 Directives This product complies with the requirements of the following European Directives and Standards: Pressure Equipment Directive 2014/68/EU Low Voltage Directive 2014/35/EU Generic standard: EN 60335-1 Relevant standards: EN 60335-2-40, EN 60335-2-21 Electromagnetic Compatibility Directive 2014/30/EU Generic standards: EN 61000-6-3, EN 61000-6-1 Relevant Standard: EN 55014 This product complies with the requirements of European Directive 2009/125/EC on the ecodesign of energy-related products. This product complies with the MCS and HARP certifications. In addition to the legal requirements and guidelines, the supplementary guidelines in this manual must also be followed. Supplements or subsequent regulations and guidelines that are valid at the time of installation shall apply to all regulations and guidelines specified in this manual. 3.1.2 EC Declaration of Conformity The unit complies with the standard type described in the EC declaration of conformity. It has been manufactured and put into circulation in accordance with the requirements of the European Directives. The original declaration of conformity is available from the manufacturer. 3.1.3 Factory test Before leaving the factory, each indoor unit is tested on the following points: Tightness of the heating circuit Electrical safety Tightness of the refrigerant circuit 3.2 Technical data 3.2.1 Compatible heating devices Tab.2 Outdoor unit Associated/compatible indoor units AWHP 4.5 MR Assure AWHP-IDU 4–8 E AWHP 6 MR-3 Assure AWHP-IDU 4–8 E AWHP 8 MR-2 Assure AWHP-IDU 4–8 E 3.2.2 Heat pump The specifications are valid for a new appliance with clean heat exchangers. Maximum operating pressure: 0.3 MPa (3 bar) 3 Technical specifications 7762758 - v05 - 19082020 11
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Tab.3 Outdoor unit conditions of use Limit operating temperatures AWHP 4.5 MR AWHP 6 MR-3 AWHP 8 MR-2 Water in heating mode +18 °C/+55 °C +18 °C/+60 °C +18 °C/+60 °C Outdoor air in heating mode -15 °C/+35 °C -15 °C/+35 °C -20 °C/+35 °C Tab.4 Heating mode: outside air temperature +7 °C, water temperature at the outlet +35 °C. Performances in accordance with EN 14511-2. Measurement type Unit AWHP 4.5 MR AWHP 6 MR-3 AWHP 8 MR-2 Heat output kW 4.60 5.87 8.26 Coefficient of Performance (COP) 5.11 4.18 4.27 Absorbed electrical power kWe 0.90 1.41 1.93 Nominal water flow rate (ΔT = 5 K) m3/hour 0.80 1.04 1.47 Tab.5 Heating mode: outside air temperature +2 °C, water temperature at the outlet +35 °C. Performances in accordance with EN 14511-2. Measurement type Unit AWHP 4.5 MR AWHP 6 MR-3 AWHP 8 MR-2 Heat output kW 3.47 3.74 5.93 Coefficient of Performance (COP) 3.97 3.30 3.12 Absorbed electrical power kWe 0.88 1.11 1.90 Tab.6 Common specifications Measurement type Unit AWHP 4.5 MR AWHP 6 MR-3 AWHP 8 MR-2 Total dynamic head at nominal flow rate kPa 62 61.80 49.30 Nominal air flow rate m3/h 2680 2700 3000 Power voltage of the outdoor unit V 230 230 230 Start-up amperage A 5 5 5 Maximal amperage A 12 13 17 Acoustic power - Inside (1) dB(A) 43 43 51 Acoustic power - Outside(2) dB(A) 58 65 65 Refrigerant fluid R410A kg 1.4 1.3 3.2 R410A refrigerant(3) tCO2e 2.922 2.714 6.680 Refrigerant connection (Liquid - Gas) inch 1/4 - 1/2 1/4 - 1/2 3/8 - 5/8 Max. pre-charged length m 7 10 10 (1) Noise radiated by the envelope - Test run in accordance with the NF EN 12102 standard, temperature conditions: air 7 °C, water 55 °C (2) Noise radiated by the envelope - Test run in accordance with the NF EN 12102 standard, temperature conditions: air 7 °C, water 45 °C for AWHP 4.5 MR only (inner and outer sides). (3) Quantity of refrigerant calculated in tonnes of CO2 equivalent Important The quantity of refrigerant fluid in tonnes of CO2 equivalent is calculated using the following formula: quantity (in kg) of refrigerant fluid x GWP / 1000. The Global Warming Potential (GWP) of R410A is 2088. 3.2.3 Heat pump weight Tab.7 Indoor module Indoor module Unit Assure AWHP-IDU 4–8 E Net weight kg 59 Gross weight kg 70 3 Technical specifications 12 7762758 - v05 - 19082020
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Tab.8 Outdoor unit Outdoor unit Unit AWHP 4.5 MR AWHP 6 MR-3 AWHP 8 MR-2 Weight kg 54 42 75 3.2.4 Combination heaters with medium-temperature heat pump Tab.9 Technical parameters for heat pump combination heaters (parameters declared for medium-temperature application) Product name AWHP 4.5 MR AWHP 6 MR-3 AWHP 8 MR-2 Air-to-water heat pump Yes Yes Yes Water-to-water heat pump No No No Brine-to-water heat pump No No No Low-temperature heat pump No No No Equipped with a supplementary heater Yes Yes Yes Heat pump combination heater No No No Rated heat output under average conditions(1) Prated kW 3 4 6 Rated heat output under colder conditions Prated kW 5 4 6 Rated heat output under warmer conditions Prated kW 4 5 6 Declared capacity for heating for part load at an indoor temperature of 20 °C and outdoor temperature Tj Tj = -7 °C Pdh kW 3.8 3.4 5.6 Tj = +2 °C Pdh kW 4.3 2.2 2.9 Tj = +7 °C Pdh kW 4.5 2.1 6.4 Tj = +12 °C Pdh kW 5.5 2.6 4.3 Tj = bivalent temperature Pdh kW 3.1 3.9 5.6 Tj = operation limit temperature Pdh kW 3.1 3.9 5.6 Bivalent temperature Tbiv °C -10 -10 -10 Degradation coefficient(2) Cdh — 1.0 1.0 1.0 Seasonal space heating energy efficiency under average conditions ƞs % 134 125 129 Seasonal space heating energy efficiency under colder conditions ƞs % 109 116 119 Seasonal space heating energy efficiency under warmer conditions ƞs % 179 172 169 Declared coefficient of performance or primary energy ratio for part load at an indoor temperature of 20 °C and outdoor temperature Tj Tj = -7 °C COPd - 1.64 1.75 1.95 Tj = +2 °C COPd - 3.46 3.18 3.22 Tj = +7 °C COPd - 4.96 4.56 4.57 Tj = +12 °C COPd - 7.90 6.41 6.55 Tj = bivalent temperature COPd - 1.20 1.56 1.70 Tj = operation limit temperature COPd - 1.20 1.56 1.70 Operation limit temperature for air-to-water heat pumps TOL °C -10 -10 -10 Heating water operating limit temperature WTOL °C 55 60 60 Electrical power consumption Off mode POFF kW 0.009 0.009 0.009 Thermostat-off mode PTO kW 0.049 0.049 0.049 Stand-by PSB kW 0.012 0.016 0.018 Crankcase heater mode PCK kW 0.000 0.055 0.055 3 Technical specifications 7762758 - v05 - 19082020 13
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Product name AWHP 4.5 MR AWHP 6 MR-3 AWHP 8 MR-2 Supplementary heater Rated heat output Psup kW 0.0 0.0 0.0 Type of energy input Electricity Electricity Electricity Other specifications Capacity control Variable Variable Variable Sound power level, indoors - outdoors LWA dB 43 - 58 43 - 65 51 - 65 Annual energy consumption under average conditions QHE kWh 2353 2124 3499 Annual energy consumption under colder conditions QHE kWh 4483 3721 4621 Annual energy consumption under warmer conditions QHE kWh 1249 1492 1904 Rated air flow rate, outdoors for air-to-water heat pumps — m3/h 2680 2700 3300 (1) The rated heat output Prated is equal to the design load for heating Pdesignh, and the rated heat output of a supplementary heater Psup is equal to the supplementary capacity for heating sup(Tj). (2) If Cdh is not determined by measurement, the default degradation coefficient is Cdh = 0.9. See The back cover for contact details. 3.2.5 Sensor specifications Outdoor temperature sensor specifications Tab.10 AF60 outdoor temperature sensor Temperature °C -20 -16 -12 -8 -4 0 4 8 12 16 20 24 30 35 Resistance Ohm 2392 2088 1811 1562 1342 1149 984 842 720 616 528 454 362 301 Heating flow sensor specifications Tab.11 NTC heating flow sensor Temperature °C 0 10 20 25 30 40 50 60 70 80 90 Resistance Ohm 32014 19691 12474 10000 8080 5372 3661 2535 1794 1290 941 Specifications of the heat pump flow and return temperature sensors Tab.12 PT1000 temperature sensor Temperature °C -10 0 10 20 30 40 50 60 70 80 90 100 Resistance Ohm 961 1000 1039 1077 1117 1155 1194 1232 1271 1309 1347 1385 3.2.6 Circulating pumps Important The benchmark for the most efficient circulating pumps is EEI ≤ 0.20. The exchanger circulating pump (sometimes called the "heat pump circulating pump") does not need any adjustment. It is automatically configured with the codes CN1 and CN2 when the appliance is commissioned. The heating circulating pump must be configured using the speed settings button, according to the heating circuit specifications. 3 Technical specifications 14 7762758 - v05 - 19082020
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P Available pressure (kPa) D Water flow rate in cubic metres per hour (m3/h) 3 Speed 3 4 Speed 4 6 Speed 6 7 Speed 7 8 Speed 8 P Available pressure (kPa) D Water flow rate in cubic metres per hour (m3/h) 2 Speed 2 3 Speed 3 5 Speed 5 6 Speed 6 7 Speed 7 8 Speed 8 3.3 Dimensions and connections 3.3.1 Indoor unit 1 Three-way valve circuit return (optional) - G1" 2 Three-way valve circuit flow (optional) - G1" 3 Direct circuit return - G1" 4 Direct circuit flow - G1" 5 Refrigerant connection - gas line 5/8” for 4.5 to 16 kW models 6 Refrigerant connection - liquid line 3/8” for 4.5 to 16 kW models Fig.4 Variable pressure MW-1001273-1 15 20 25 30 35 40 45 50 55 60 65 70 75 8 7 6 4 3 P D 0,0 0,2 0,4 0,6 0,8 1,0 1,2 1,4 1,6 1,8 2,0 2,2 2,4 2,6 Fig.5 Constant pressure P D MW-1001272-1 20 25 30 35 40 45 50 55 60 65 70 75 80 85 8 7 6 3 5 2 0,0 0,2 0,4 0,6 0,8 1,0 1,2 1,4 1,6 1,8 2,0 2,2 2,4 2,6 Fig.6 MW-1001180-03 122 192 262 472 542 52 51 858.5 1003 600 457.5 50 50 454 6 5 4 3 2 1 3 Technical specifications 7762758 - v05 - 19082020 15
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3.3.2 AWHP 4.5 MR outdoor unit Fig.7 MW-1000430-2 155 69 1 2 90 840 109 81 880 452 (417.5) 417.5 40 42 10 X 21 360 175 500 330 50 1 1/4" refrigerant fluid connection 2 1/2" refrigerant fluid connection 3.3.3 AWHP 6 MR-3 outdoor unit Fig.8 23.2 2 99.5 1 164.5 492 193.5 35° 43° 360 330 32.5 300 40 404.5 48 22.3 630 320 8.5 809 500 310 154.5 62 MW-1000919-2 1 1/4" refrigerant fluid connection 2 1/2" refrigerant fluid connection 3 Technical specifications 16 7762758 - v05 - 19082020
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3.3.4 AWHP 8 MR-2 outdoor unit Fig.9 943 950 45 56 53 28 19 23 417 175 330 370 30 443 447 175 65 42 2 (A) (B) MW-M001442-4 1 1 3/8" refrigerant fluid connection 2 5/8" refrigerant fluid connection 3 Technical specifications 7762758 - v05 - 19082020 17
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3.4 Electrical diagram Fig.10 MW-1001139-3 SCB-10 X7 X6 X5 X1 X2 X3 X4 SENSOR LIQUID SENSOR TARGET PUMP EXCHANGER PUMP CH PC SERVICE PORT DHW REVERSING VALVE WATER SENSORS 7680130 7750947 7750990 7621783 X13 X12 X2 X3 S2/S3 HPC-01 FUSE OUTDOOR UNIT 7705849 768 0047 X2 FUSE X19 X24 X23 X30 X16 X17 X13 X6 X21 X25 X12 X15 X7 X8 X5 X4 EHC-05 CONDENSATE SENSOR So+/So- ENERGY COUNTER BL2 MULTIFUNCTION BL1 MULTIFUNCTION DHW SENSOR X27 X1 X26 X10 X9 X28 X18 X22 7680294 ON/OFF X12 X11 FUSE 7680501 7673746 7680005 7680155 7680120 7680441 X15 X1 X14 X4 HMI PUMP SPEED PUMP POWER SUPPLY BACKUP 1 BACKUP 2 PUMP POWER SUPPLY 230V - 50Hz ROOM UNIT CIRCA0 LOW NOISE EH812 EH829 7673502 230V~ 400V 3N~ L1 L2 L3 N C Electric Backup 2kW X4 EHC-05 X5 EHC-05 C3 C2 C1 L1 L2 L3 N C Hydraulic Backup ON/OFF X4 EHC-05 X5 EHC-05 PUMP E1 E2 2-6kW 8kW 4kW 8-12kW 4-12kW 4-8kW C3 C2 C1 C3 C2 C1 C3 C2 C1 C3 C2 C1 C3 C2 C1 C3 C2 C1 FUSE CB04 EH726 X5 X6 DISCONNECTOR 7680479 X17 + - TA 7696851 Tab.13 Electrical diagram legend 230V~ Power supply BACKUP 1 Hydraulic version: Hydraulic back-up pump Electrical version: Electrical back-up - stage 1 BACKUP 2 Hydraulic version: Hydraulic back-up ON/OFF contact Electrical version: Electrical back-up - stage 2 BL1 MULTIFUNCTION BL1 multifunction input BL2 MULTIFUNCTION BL2 multifunction input CB04 Automatic filling kit CONDENSATE SENSOR Condensation sensor for underfloor heating DHW REVERSING VALVE Domestic hot water tank three-way valve DHW SENSOR Domestic hot water tank sensor EHC–05 Heat pump control system central unit PCB DISCONNECTOR Disconnector ELECTRICAL BACKUP Electrical back-up FUSE Fuse HPC–01 PCB: interface for the outdoor unit HYDRAULIC BACKUP Hydraulic back-up OUTDOOR UNIT Outdoor unit OUTSIDE TEMPERATURE SENSOR Outdoor temperature sensor PC SERVICE PORT Service Tool connector PUMP CH Heating circulating pump PUMP EXCHANGER Heat pump circulating pump ROOM UNIT CIRCA0 Baxi uSense connected room thermostat, on/off thermostat, modulating thermostat or OpenTherm thermostat for the CIRCA0 direct zone 3 Technical specifications 18 7762758 - v05 - 19082020
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SCB-10 PCB for controlling the additional heating and domestic hot water circuits SENSOR LIQUID Exchanger refrigerant temperature sensor SENSOR TARGET Water temperature sensor on the exchanger outlet SO+/SO- ENERGY COUNTER SO+/SO- energy meter WATER SENSORS Temperature sensors 3 Technical specifications 7762758 - v05 - 19082020 19
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4 Description of the product 4.1 Operating principle The outdoor unit produces heat and transfers it to the indoor module via the refrigerant in the plate exchanger. The indoor module is equipped with a specific control system which is used to adjust the temperature of the heating water to the needs of the home. 4.2 Main components With electrical back-up 1 Automatic air vent 2 Low-loss header (40l) 3 Heat pump circulating pump 4 Plate heat exchanger 5 Heat pump flow temperature sensor (PT1000) 6 Flow meter 7 Switching control panel unit 8 Electrical diagram 9 Safety valve 10 Electronic pressure gauge 11 Expansion vessel 12 Magnetic filter 13 Heat pump return temperature sensor (PT1000) 14 Heating circulating pump 15 Electric preheater 16 PCB for controlling the electric preheater 17 Automatic air vent 18 Heating flow temperature sensor Position of the PCBs Marker PCB Function 1 CB04 optional PCB Filling kit 2 SCB-10 PCB Additional heating and domestic hot water circuits 3 AD249 PCB (option) Management of heating circuit C1 and auxiliary circuit AUX1 4 EHC–05 central unit PCB Control system for the heat pump, first heating circuit and domestic hot water 5 HPC–01 PCB Interface PCB for the outdoor unit Fig.11 MW-1001189-3 3 15 17 4 6 13 12 5 7 8 1 10 9 11 16 14 2 18 Fig.12 MW-1001194-2 3 4 5 1 2 4 Description of the product 20 7762758 - v05 - 19082020
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4.3 Standard delivery Tab.14 Package Contents Outdoor unit An outdoor unit A manual Indoor unit An indoor unit An accessories bag containing: One outdoor temperature sensor One mechanical pressure gauge with a T fitting One domestic hot water sensor An installation and service manual A user guide Package EH146 4 Description of the product 7762758 - v05 - 19082020 21
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5 Connecting diagrams and configuration 5.1 Installation with electrical back-up, two circuits and a domestic hot water tank Fig.13 Connect CIRC A0 to EHC–05 and CIRC B1 to SCB-10 CIRCB1 CIRCA0 MW-1001774-1 BUS 230V - 400V 50Hz 230V - 400V 50Hz 5 6 6 M M 230V - 400V 50Hz θ 8 7 9 1 3 4 11 10 1 Outdoor unit 3 Three-way internal valve kit 4 Domestic hot water sensor 5 Refrigerant connection 5/8" – 3/8", 5 m 6 Heating/domestic hot water reversing valve 7 Indoor unit 8 Safety thermostat 9 Outdoor temperature sensor 10 Thermostat connected to circuit A 11 Connected thermostat for circuit B 5.1.1 Make the electrical connections 1. Connect the accessories and options to the EHC–05 PCB, respecting the 230-400 V and 0-40 V cable feed-throughs. 2. Connect the accessories and options to the SCB-10 PCB, respecting the 230-400 V and 0-40 V cable feed-throughs. The icons corresponding to the B1 and domestic hot water circuit appear on the user interface. The A0 circuit icon is present as default. 5 Connecting diagrams and configuration 22 7762758 - v05 - 19082020
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Fig.14 Connect CIRC A0 to EHC–05 and CIRC B1 to SCB-10 X23 X19 X25 EHC-05 4 3 M M θ 9 13 5 7 6 11 8 12 10 14 MW-1001775-1 SCB-10 13 12 5 9 7 6 8 11 10 3 3 4 14 CIRCB1 CIRCA0 3 X19: Control signal for the immersion heater, used to control the immersion heater on the reversal valve kit 4 X25: Reversal valve from the reversal valve kit: A0/ domestic hot water circuit 5 Flow sensor – B1 circuit 6 Three-way valve – B1 circuit 7 Power supply for the B1 circuit pump 8 Domestic hot water recirculating pump 9 Safety thermostat for underfloor heating flow 10 X12 R-Bus: Thermostat connected to A0 circuit 11 X28 Tdhw2: domestic hot water sensor 12 Thermostat connected to B1 circuit 13 Outdoor temperature sensor 14 X23: Outdoor unit bus connection 5.1.2 Applying the parameters 1. To configure the back-up boiler: on first start-up or after resetting the factory settings, set the CN1 and CN2 parameters according to the information on the data plate and the outdoor unit output. 2. Configure and check the parameters of the A0 circuit. Tab.15 Access Parameter Adjustment required 21.7 CIRCA0> Parameters, counters, signals > Parameters MaxZoneTFlowSetpoint (CP000) Maximum Flow Temperature setpoint zone: 75 °C Adjust the temperature as required Zone Function (CP020) Functionality of the zone: Direct 3. Set the heating curve on the A0 circuit to a gradient of 1.5. Adapt the values of the heating curve in order to obtain optimum comfort. 4. Configure the parameters for the B1 circuit. Tab.16 Access Parameter Adjustment required 19.8 CIRCB1 > Parameters, counters, signals > Parameters MaxZoneTFlowSetpoint (CP000) Maximum Flow Temperature setpoint zone: 40 °C Adjust the temperature according to need Zone Function (CP020) Functionality of the zone: Mixing Circuit 5. Set the heating curve on the B1 circuit with a gradient between 0.4 and 0.7. Adapt the values of the heating curve in order to obtain optimum comfort. On On 5 Connecting diagrams and configuration 7762758 - v05 - 19082020 23
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6. Configure the parameters of the (DHW) domestic hot water tank. Tab.17 Access Parameter Adjustment required DHW tank > Parameters, counters, signals > Parameters Max. DHW duration (DP047) Maximum duration of the DHW production 3 hours Adjust the duration according to need Min. CH before DHW(DP048) Min. heating duration before DHW prod. 2 hours Adjust the duration according to need DHW management (DP051) ECO (Only HP) Hysteresis DHW temperature setpoint (DP120) 15 °C Adjust the temperature as required 7. Configure the heat pump parameters Tab.18 Access Parameter Adjustment required 23.5 Air Src Heat pump > Parameters, counters, signals > Adv. Parameters Cooling mode (AP028) Configuration of the cooling mode Off Active cooling on Authorisation for cooling has been set. 8. Configure the parameters for the immersion heater on the domestic hot water tank. Tab.19 Access Parameter Adjustment required DHW tank > Parameters, counters, signals > Adv. Parameters DHW backup type (DP334) IDU/DhwTank Cooling 23.5 Air Src Heat pump > Parameters, counters, signals > Adv. Parameters kW rating DHW backup(HP145) 2.4 kW 9. Configure the timer programme for the domestic hot water 1 (DHW1) to configure the operating hours of the recirculating pump. See the user guide. 10. Configure the timer programme for the A0, B1 and domestic hot water circuits. For more information, see Data Plates, page 26 Configuration numbers CN1 et CN2, page 54 5.2 Connecting a swimming pool To control swimming pool heating, you will need the optional AD249 printed circuit board and a swimming pool thermostat. A low-loss header will also be required to ensure the heat pump operates correctly with a swimming pool. The swimming pool is not heated when the contact is open (factory setting). Only the frost protection continues to run. The thermostat contact is open when the swimming pool temperature is higher than the thermostat set point. When the contact is closed, the swimming pool is heated. On On On 5 Connecting diagrams and configuration 24 7762758 - v05 - 19082020
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The electrical connection of a swimming pool is made to the optional AD249 PCB. 1. Connect the swimming pool's secondary pump to terminal block of the selected circuit (CIRCA1, CIRCB1 or CIRCC1). Three-way valve terminal block Connecting the pump Earthing connector Earth wire N connector Pump neutral Opening control connector Power supply for pump 2. Connect the swimming pool temperature sensor to the TFlow terminal block. 3. Connect the swimming pool's primary pump to terminal block of the selected circuit (CIRCA1, CIRCB1 or CIRCC1). 4. Connect the swimming pool heating cut-off control to the R-Bus terminal block. Fig.15 MW-6000381-7 1 2 3 4 5 Connecting diagrams and configuration 7762758 - v05 - 19082020 25
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6 Installation 6.1 Installation regulations Warning The components used for the connection to the cold water supply must comply with the prevailing standards and regulations in the country concerned. Pursuant to European Regulation 517/2014, the equipment must be installed by a certified operator whenever the refrigerant load is in excess of 5 tonnes of CO2 equivalent or when a refrigerant connection is necessary (the case with split systems, even when fitted with a quick coupling device). Caution Installation of the heat pump must be done by a qualified professional in accordance with prevailing local and national regulations. 6.2 Data Plates 6.2.1 Data plate on the indoor module The data plates identify the product and provide the following important information. The data plates must be accessible at all times. Important Never remove or cover labels and data plates affixed to the appliances. Labels and data plates must be legible throughout the entire lifetime of the appliance. Damaged or illegible instructions and warning stickers must be replaced immediately. 6.2.2 Data plate on the outdoor unit 6.3 Respecting the distance between the indoor module and the outdoor unit To ensure that the heat pump functions correctly, respect the minimum and maximum connection lengths between the indoor module and the outdoor unit. Fig.16 MW-1001195-1 Fig.17 MW-M001832-1 6 Installation 26 7762758 - v05 - 19082020
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1. Respect distances A, B and C between the outdoor unit 1 and the indoor module 2. Tab.20 A: Maximum/ minimum length B: Maximum height differ ence C: Maximum number of el bows AWHP 4.5 MR 2 to 30 m 30 m 10 AWHP 6 MR-3 2 to 40 m 30 m 15 AWHP 8 MR-2 2 to 40 m 30 m 15 2. Make one or two horizontal loops with the refrigerant connections to reduce disruption. If the length of the refrigerant connections is less than 2 m, disruptions can occur: Functional disruptions caused by a fluid overload, Noise pollution caused by the circulation of the refrigerant. 6.4 Positioning the indoor unit 6.4.1 Allowing sufficient space for the indoor module Allow sufficient space around the heat pump indoor module to ensure adequate access and facilitate maintenance. Fig.18 MW-M001439-2 A B 2 1 C Fig.19 MW-1001196-1 6 Installation 7762758 - v05 - 19082020 27
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6.4.2 Fitting the assembly rail 1. Drill 2 holes with a diameter of 8 mm. Important Extra holes are provided in case one or other of the standard locating holes prevents the correct location of the plug. Important Check that the wall is able to bear the weight of the indoor unit. 2. Put the plugs in place. 3. Fix the mounting rail to the wall using the hexagonal head screws provided for this purpose. Set the level using a spirit level. 6.4.3 Mounting the unit on the wall 1. Position the indoor unit above the mounting rail so that it rests snugly against it. Important If necessary, use suitable lifting equipment. 2. Gently lower the indoor unit. 6.5 Putting the outdoor unit in place 6.5.1 Allowing sufficient space for the outdoor unit Minimum distances from the wall are necessary in order to guarantee optimum performance. Fig.20 MW-1001197-2 2 3 1 3 557.5 ø 8 457.5 Fig.21 MW-1001198-1 6 Installation 28 7762758 - v05 - 19082020
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1. Respect the minimum positioning distances of the outdoor unit from the wall. Tab.21 Minimum distances in mm A B C D E AWHP 4.5 MR 100 500 1000 200 300 AWHP 6 MR-3 100 500 1000 200 300 AWHP 8 MR-2 100 500 1000 200 300 6.5.2 Selecting the location of the outdoor unit To ensure the outdoor unit operates correctly, its location must meet certain conditions. 1. Decide on the ideal location for the outdoor unit, bearing in mind the space it requires and any legal directives. 2. Observe the IP24 protection rating of the outdoor unit during installation. 3. Avoid the following locations as the outdoor unit is source of noise: Prevailing winds Close to sleep zones Close to a terrace Opposite a wall with windows 4. Nothing must obstruct the free circulation of air around the outdoor unit (intake and outlet). Fig.22 MW-5000579-1 E E D D A A B B A A A C C Max. 500 Max. 500 Fig.23 MW-M001448-2 6 Installation 7762758 - v05 - 19082020 29
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5. Ensure the support meets the following specifications: Flat surface that can support the weight of the outdoor unit and its accessories (concrete base, concrete blocks or sill). No rigid connection to the building served to avoid the transmission of vibration. Sufficient above ground elevation (200 mm) to keep it above water, ice and sno. Base with a metal frame to allow condensates to be discharged correctly. Important The width of the base must not exceed the width of the outdoor unit. The condensates discharge must be regularly cleaned in order to prevent any blockages. 6.5.3 Choosing the location of a noise abatement screen When the outdoor unit is too close to neighbours, a noise abatement screen can be fitted to reduce noise pollution. Install this type of equipment in compliance with prevailing legislation and standards. Fig.24 MW-C000373-1 Brrrrr.... Brrrrr.... Brrrrr.... Brrrrr.... 1. Locate the noise abatement screen as close as possible to the source of noise whilst allowing for the free circulation of air in the exchanger on the outdoor unit and maintenance work. 2. Respect the minimum positioning distances of the outdoor unit from the noise abatement screen. 6.5.4 Selecting the location of the outdoor unit in cold and snowy regions Wind and snow can significantly reduce the performance of the outdoor unit. The location of the outdoor unit must meet the following conditions. Fig.25 MW-6000252-2 1 2 3 / 4 1. Install the outdoor unit sufficiently high off the ground to allow condensates to be discharged correctly. 6 Installation 30 7762758 - v05 - 19082020
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2. Ensure the base meets the following specifications: Specifications Reason Maximum width equal to the width of the outdoor unit. Height at least 200 mm greater then the average depth of the covering of snow. This helps to protect the exchanger from snow and prevent the formation of ice during the defrosting operation. Location as far as possible from the thoroughfare. The condensates discharge may freeze, causing a potential hazard (sheet of black ice). 3. If the outdoor temperatures drop below zero, take the necessary precautions to prevent the risk of freezing in the evacuation pipes. 4. Place the outdoor units beside each other and not on top of each other to prevent the condensates from the lower unit to freeze. 6.5.5 Installing the outdoor unit on the ground When installing on the ground, a concrete base must be installed, with no rigid connection to the building served to avoid the transmission of vibrations. Position a rubber floor support. 1. Dig a run-off channel with a pebble bed. 2. Install a concrete base frame with a minimum height of 200 mm capable of bearing the weight of the outdoor unit. 3. Install the outdoor unit on the concrete base frame. 6.6 Hydraulic connections 6.6.1 Special precautions for the connection of the heating circuit During connection, it is imperative that the standards and corresponding local directives be respected. Depending on the heating system installation, install a filter on the heating return circuit. Depending on the heating system installation, install a sludge collector or a magnetic filter and/or additional mechanical filter on the heating return, just before the heat pump, if necessary. If components made from composite materials are used (polyethylene connection pipes or flexible hose), we recommend components with an anti-oxygen barrier. 6.6.2 Connecting the heating circuit Heating installations must be able to guarantee a minimum flow rate at all times. Important To ensure maintenance and accessibility to the various components in the module, the hydraulic pipes have been purposely designed with a degree of play. This play is necessary and controlled. This pipe design guarantees the leak-tightness of the product. 1. Make the hydraulic connections between the indoor unit and the heating circuit. 2. Install an automatic air vent at the highest point on the heating circuit. Fig.26 MW-M001452-3 200 2 1 3 6 Installation 7762758 - v05 - 19082020 31
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3. Calculate the volume of water in the heating circuit and check the volume of the appropriate expansion vessel. Use the maximum temperature of the circuit in heating mode or, failing that, a minimum of 55 °C. If the volume of the integrated 10-litre expansion vessel is not sufficient, add an external vessel to the heating circuit. Refer to the applicable local and national regulations. 4. Connect the heating return for the indoor unit. Place the pressure gauge and its pipe on the heating return. The pressure gauge is supplied with the indoor unit. 5. Connect the heating flow for the indoor unit. Caution To avoid twisting the pipes inside the appliance, hold the nuts on the indoor unit side using a spanner. 6.6.3 Connecting the safety valve drain pipe 1. Connect the outlet pipe to the waste water discharge. Caution The discharge pipe in the safety valve or unit must not be blocked. 6.7 Refrigeration connections 6.7.1 Preparing the refrigerant connections Danger Only a qualified professional may carry out the installation in conformity with current legislation and standards. To allow exchanges between the indoor module and the outdoor unit, fit 2 refrigerant connections: flow and return. Pursuant to European Regulation 517/2014, the equipment must be installed by a certified operator whenever the refrigerant load is in excess of 5 tonnes of CO2 equivalent or when a refrigerant connection is necessary (the case with split systems, even when fitted with a quick coupling device). 1. Install the refrigerant connection pipes between the indoor module and the outdoor unit. 2. Respect the minimum curve radii of 100 to 150 mm. 3. Adhere to the minimum and maximum distances between the indoor module and the outdoor unit. 4. Cut the pipes with a pipe cutter and deburr. 5. Angle the opening in the pipe downwards to ensure no particles can get inside, while preventing oil traps. 6. If the pipes are not connected immediately, plug them to prevent moisture from entering. Fig.27 MW-1001199-1 4 Fig.28 MW-1001200-1 Ø32 1 6 Installation 32 7762758 - v05 - 19082020
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6.7.2 Connect the refrigerant connections to the indoor unit Caution Keep the refrigerant connection in place on the indoor unit with a spanner so as not to twist the internal pipe. Fig.30 A B MW-1001300-1 1/2" 5/8" 1/4" 3/8" 5/8" 3/8" 5/8" 3/8" EH146 100015480 Tab.22 Association with an out door unit Indoor unit gas line fitting Indoor unit liquid line fitting A: 4.5 and 6 kW 5/8" <=> 5/8" to 1/2" adapter from package EH146 <=> 1/2" nut from package EH146 Discard the original 5/8" nut 3/8" <=> 3/8" to 1/4" adapter from package EH146 <=> 1/4" nut from package EH146 Discard the original 3/8" nut B: 8 5/8" <=> Original 5/8" nut Remove and discard the cap 3/8" <=> Original 3/8" nut Remove and discard the cap 1. Check the exchanger leak-tightness: partially unscrew the "gas" nut. A release noise should be heard, which is proof that the exchanger is watertight. 2. Undo the nuts on the indoor unit. 3. Fit the connections as shown in the above table, using the copper gaskets for the adapters and adhering to the torque load. Tab.23 Tightening torque applied External diameter of the pipe (mm/inch) External diameter of the cone fitting (mm) Torque load (N.m) 6.35 - 1/4 17 14 - 18 9.52 - 3/8 22 34 - 42 12.7 - 1/2 26 49 - 61 15.88 - 5/8 29 69 - 82 19.05 - 3/4 36 100 - 120 4. Bead the pipes. 5. Connect the pipes and tighten the nuts, adhering to the torque load and applying refrigerant oil to the beaded parts to facilitate tightening and improve leak-tightness. Fig.29 MW-1001207-1 Fig.31 MW-1001208-2 OK Pfffff... 1 6 Installation 7762758 - v05 - 19082020 33
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6.7.3 Connecting the refrigerant connections to the outdoor unit 1. Remove the protective side panels from the outdoor unit. 2. Unscrew the nuts on the stop valves. Caution Keep the refrigerant connection in place on the outdoor unit with a spanner so as not to twist the internal pipe. (1) Do not use a spanner on this part of the valve, there is a danger of the refrigerant leaking. (2) Recommended position of the spanners for tightening the nut. 3. Thread the nuts onto the pipes. 4. Bead the pipes. 5. Apply refrigerant oil to the beaded parts to facilitate tightening and improve the seal. 6. Connect the pipes and tighten the nuts with a torque wrench. Caution Keep the refrigerant connection in place on the outdoor unit with a spanner so as not to twist the internal pipe. Tab.24 Torque load External diameter of the pipe (mm/inch) External diameter of the cone fitting (mm) Torque load (N.m) 6.35 - 1/4 17 14 - 18 9.52 - 3/8 22 34 - 42 12.7 - 1/2 26 49 - 61 15.88 - 5/8 29 69 - 82 19.05 - 3/4 36 100 - 120 6.7.4 Adding the necessary quantity of refrigerant fluid If the refrigerant connection pipes exceed the lengths below, add refrigerant fluid via the refrigerant fluid stop valve using a safety loader. Caution Prevent oil traps. If the pipes are not connected immediately, plug them to prevent moisture from entering. Tab.25 Quantity of refrigerant fluid to be added Length of refrigeration pipe 7 m 10 m 15 m 20 m 30 m Yg/m AWHP 4.5 MR(1) 0 + 0.045 kg + 0.120 kg + 0.195 kg + 0.345 kg 15(2) (1) The outdoor unit is pre-charged with 1.3 kg of refrigerant fluid. (2) Calculation: Xg = Yg/m x (pipe length (m) – 7) Fig.32 MW-5000512-2 Fig.33 MW-1001302-2 (1) (2) (2) 6 Installation 34 7762758 - v05 - 19082020
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Tab.26 Quantity of refrigerant fluid to be added Length of refrigeration pipe 11 to 20 m 21 to 30 m 31 to 40 m 41 to 50 m 51 to 60 m 61 to 75 m AWHP 6 MR-3 0.2 kg 0.4 kg 0.6 kg not permit ted not permit ted not permit ted AWHP 8 MR-2 0.15 kg 0.3 kg 0.9 kg not permit ted not permit ted not permit ted 6.7.5 Testing the leak-tightness of the refrigerant connections 1. Remove the plugs from the stop valves A and B / C. 2. Check that A and B / C stop valves are closed. 3. Remove the plug from the service connection on A stop valve. 4. Connect the pressure gauge and the nitrogen bottle to the stop valve A then progressively build up the pressure in the refrigerant connection pipes and the indoor module to 42 bar, in 5 bar increments. 5. Check the leak-tightness of the fittings using a leak detector spray. If leaks appear, repeat the steps in order and check the leak-tightness once again. 6. Release the pressure and release the nitrogen. 6.7.6 Evacuation Perform evacuation after checking that the refrigerant circuit is entirely free of leaks. Evacuation is necessary to remove air and moisture from the refrigerant circuit. 1. Check that the A and B / C stop valves are closed. 2. Connect the vacuum gauge and the vacuum pump to the service connection on A stop valve. 3. Produce a vacuum in the indoor module and the refrigerant connection pipes. 4. Check the pressure according to the recommendations table below: Tab.27 Outdoor temperature °C ≥ 20 10 0 - 10 Pressure to be reached Pa (bar) 1000 (0.01) 600 (0.006) 250 (0.0025 ) 200 (0.002) Evacuation time after reaching the pressure h 1 1 2 3 5. Close the valve between the vacuum gauge / vacuum pump and A stop valve. 6. Disconnect the vacuum gauge and the vacuum pump after it has shut down. 7. Open the valves. Fig.34 MW-M002297-3 A B C 42 bar 1 1 1 2 2 2 5 3 4 Fig.35 MW-M002499-2 A B C 1 1 1 2 4 6 Installation 7762758 - v05 - 19082020 35
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6.7.7 Opening the stop valves Once the leak-tightness has been checked and the refrigerant circuit evacuated, open the stop valves to allow the refrigerant fluid to circulate. 1. Remove the cap from the refrigerant fluid stop valve, fluid end. 2. Open valve A with a hexagonal spanner by turning anti-clockwise until it stops. 3. Put the cap back in place. 4. Remove the cap from refrigerant gas stop valve B or C. 5. Open the valve. Valve B Open the valve with pliers by turning it a quar ter turn anti-clockwise. Valve C Open the valve with a hexagonal spanner by turning anti-clockwise until it stops. 6. Put the cap back in place. 7. Put the cap back in place on valve A. 8. Tighten all the caps with a torque wrench with a torque load of 20 to 25 N·m. 9. Depending on the length of the refrigerant pipes, it may be necessary to add refrigerant fluid. 6.8 Electrical connections 6.8.1 Recommendations Warning Only qualified professionals may carry out electrical connections, always with the power off. Earth the appliance before making any electrical connections. Make the electrical connections on the appliance in accordance with the requirements of the prevailing standards, Make the electrical connections on the appliance in accordance with the information given in the electrical schematics delivered with the appliance, Make the electrical connections on the appliance in accordance with the recommendations of these instructions. Important Earthing must comply with the prevailing installation standards. Caution The installation must be fitted with a main switch. Caution Power the appliance via a circuit that includes an omnipolar switch with contact opening distance of 3 mm or more. Single phase models: 230 V (+6%/-10%) 50 Hz When making electrical connections to the mains, respect the following polarities. Tab.28 Colour of the wire Polarity Brown wire Live Blue wire Neutral Green/yellow wire Earth Fig.36 MW-M002295-2 1 8 3 5 4 6 2 4 6 5 A B C 6 Installation 36 7762758 - v05 - 19082020
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Caution Secure the cable with the cable clamp provided. Be careful that you do not invert any of the wires. 6.8.2 Recommended cable cross section The electrical characteristics of the mains power supply available must correspond to the values given on the data plate. The cable will be carefully chosen according to the following information: Maximum intensity of the outdoor unit. See table below. Distance of the appliance from the original power supply. Upstream protection. Neutral operating conditions. Important The maximum permissible current on the power supply cable of the indoor unit must not exceed 6 A. Tab.29 Appliance Power supply type Cable cross section (mm2) Circuit breaker curve C (A) Maximum amperage (A) Indoor unit Single phase Cable provided (3 x 1.5) 10 - Electrical back-up Single phase 3 x 6 32 - Three phase 5 x 2.5 16 - BUS cable(1) - 2 x 0.75 - - AWHP 4.5 MR Single phase 3 x 2.5 16 12 AWHP 6 MR-3 Single phase 3 x 2.5 16 13 AWHP 8 MR-2 Single phase 3 x 4 25 17 (1) Connection cable linking the outdoor unit to the indoor unit 6 Installation 7762758 - v05 - 19082020 37
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6.8.3 Routing the cables Caution Separate the sensor cables from the 230/400 V circuit cables. Secure all the cables exiting the indoor unit using the traction arrester devices supplied in the accessories bag. 1 230 V~ circuit cables 2 0-40 V safety extra-low voltage cables 3 230 - 400 V electrical back-up power supply cables (only for models with an electrical back-up) 6.8.4 Description of the connection terminal blocks Possible connections Several heating zones can be connected to the EHC–05 and SCB-10 PCBs. The options can be increased with the optional AD249 PCB. The connections for the sensors or pumps of each zone are on each PCB. Tab.30 Circuits CIRCA0 (EHC–05) DHW (EHC–05) CIRCA1 (SCB-10) CIRCB1 (SCB-10) CIRCC1 (with AD249 op tion) CIR CAUX1 (with AD249 op tion) DHW1 (SCB-10) Convection fan X X X X Underfloor heating X(1) X X X Radiator X X X X 365 day radiator X X X X Continuous heating X X X X Timer programme X X X X X Swimming pool X X X Domestic hot water production X X X X X X Domestic hot water production, electric only X X X X Stratified tank (2 sensors) X X Buffer tank used as a low-loss header X X X X X X X Fig.37 MW-1001201-1 230-400V 230V 0-40V 230V 0-40V 1 3 2 6 Installation 38 7762758 - v05 - 19082020
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Circuits CIRCA0 (EHC–05) DHW (EHC–05) CIRCA1 (SCB-10) CIRCB1 (SCB-10) CIRCC1 (with AD249 op tion) CIR CAUX1 (with AD249 op tion) DHW1 (SCB-10) Buffer tank for storage X Deactivation X X X X X X X (1) Use the direct zone underfloor heating option Description of the EHC–05 PCB X1 Main power supply for the 230 V - 50 Hz indoor module X4 Hydraulic version: Hydraulic back-up pump Electrical version: Electrical back-up - stage 1 X5 Hydraulic version: Hydraulic back-up ON/OFF contact Electrical version: Electrical back-up - stage 2 X7 Local communication bus to the SCB-10 PCB X8 Control panel display for the indoor module X9 Sensors X10 Speed control signal for the heat pump circulating pump X12 Options R-Bus: Baxi uSense connected room thermostat, on/off thermostat, modulating thermostat or OpenTherm thermostat for the CIRCA0 direct zone BL1 / BL2: multifunction inputs So+/So- : Electric energy meter Condensation: condensation sensor X15 Not used X16 Not used X17 Not used X18 Input/output for the HPC–01 PCB X19 Control signal for the immersion heater on the domestic hot water tank X22 Bus for communication with the outdoor unit HPC–01 PCB X23 Bus for communicating with the outdoor unit X24 Not used X25 Heating reversing valve: CIRCA0 /Domestic hot water: DHW X26 CIRCA0 direct heating circuit pump X27 Heat pump circulating pump power supply X28 Temperature sensor: T dhw 1: Temperature sensor at the bottom of the DHW domestic hot water tank (optional) T dhw 2: Temperature sensor at the top of the DHW tank T out: not used Fig.38 MW-1001169-4 R-Bus T dhw 1 T dhw 2 T out BL1 IN BL2 IN So+ So- Condensation X15 X26 X2 X25 X13 X6 X21 X24 X12 X9 X4 X5 X19 X17 X16 X10 X23 X30 X18 X1 X20 X7 X8 X27 X22 } X28 } So - + 6 Installation 7762758 - v05 - 19082020 39
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Description of the SCB-10 PCB Fig.39 MW-1001101-2 5 17 16 15 14 13 12 11 10 9 8 7 6 18 4 3 2 1 22 19 21 23 20 X2 X3 1 R-Bus: Baxi uSense connected room thermostat, on/off thermostat, modulating thermostat or OpenTherm thermostat - CIRCA1 circuit 2 R-Bus: Baxi uSense connected room thermostat, on/off thermostat, modulating thermostat or OpenTherm thermostat - CIRCB1 circuit 3 R-Bus: Baxi uSense connected room thermostat, on/off thermostat, modulating thermostat or OpenTherm thermostat - CIRCC1 circuit 4 Programmable and 0-10 V input 5 Outdoor temperature sensor 6 Impressed current anode 7 Flow sensor - CIRCA1 circuit 8 Flow sensor - CIRCB1 circuit 9 Flow sensor - CIRCC1 circuit 10 Domestic hot water sensor on the DHW1 second domestic hot water circuit 11 System sensor 2 12 System sensor 1 13 Pump and safety thermostat - CIRCA1 circuit 14 Three-way valve - CIRCA1 circuit 15 Pump and safety thermostat - CIRCB1 circuit 16 Three-way valve - CIRCB1 circuit 17 Domestic hot water tank pump when using a second domestic hot water circuit 18 Connectors for S-BUS cables used for cascade 19 L-BUS connection 20 L-BUS connection to EHC–05 PCB 21 Tool service connector 22 ConnectorsMod-BUS 23 Coding wheel, selects the generator number in the cascade Description of the three-way valve and auxiliary circuit AD249 PCB PCB AD249 is an additional board which is connected to the SCB-10 PCB to enable it to control a third heating circuit and auxiliary functions. 6 Installation 40 7762758 - v05 - 19082020
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1 CIRCC1 three-way valve 2 CIRCC1 circuit pump 3 CIRCC1 safety thermostat. Factory fitted bridge 4 CIRC AUX1 auxiliary pump 6.8.5 Accessing the PCBs 1. Unscrew the two screws under the front panel by a quarter turn. 2. Remove the front panel. 3. Open the holding clips located on the sides. 4. Tilt the control panel forwards. Fig.40 3 x 0,75mm2 mini. 4 x 0,75mm2 mini. MW-1001681-1 TS 1 2 3 4 Fig.41 MW-1001203-1 1 2 Fig.42 MW-1001204-1 3 4 6 Installation 7762758 - v05 - 19082020 41
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5. Remove the screw and the control panel cover. 6. Unclip the PCB cover. 6.8.6 Connecting the cables to the PCBs Keyed connectors are present on different terminal blocks as standard. Use these to connect the cables to the PCBs If there are no connectors on the terminal block to be used, take the connector provided with the kit. Coloured stickers are provided with certain accessories. Use these to mark each end of the cable with the same colour before passing the cables into the cable feed-throughs. 1. Insert and screw down the wires in the corresponding connector inputs. 2. Insert the connector into the corresponding terminal block. 3. Feed the cable into the cable duct and adjust the length of the cable accordingly. 4. Lock it in position with a cable clamp or a traction arrester device. Caution Danger of electric shock: the length of the conductors between the traction arrester device and the terminal blocks must be such that the active conductors are put under tension before the earth conductor. Fig.43 MW-1001205-1 5 6 Fig.44 MW-6000148-2 1 2 6 Installation 42 7762758 - v05 - 19082020
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6.8.7 Electrically connecting the outdoor unit Fig.45 MW-1001351-1 1 2 1 2 A B 1 Power supply 2 Communication bus A AWHP 4.5 MR B AWHP 6 MR-3 / AWHP 8 MR-2 6 Installation 7762758 - v05 - 19082020 43
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D AWHP 4.5 MR E AWHP 6 MR-3 F AWHP 8 MR-2 1. Remove the service panel. 2. AWHP 4.5 MR only: remove the earth connection screw from the appliance and discard. 3. Check the cross-section of the cable used, as well as its protection in the electric panel. 4. AWHP 4.5 MR only: secure the screw and square washer provided on the stripped part of the earth wire . Danger The stripped part of the earth wire must be fitted underneath the washer against the base frame. 5. Connect the earth wire. Danger The earth wire must be 10 mm longer than the N and L wires. 6. Connect the cables to the appropriate terminals. 7. Feed the cable into the cable duct and adjust the length of the cable accordingly. Lock it in position with a cable clamp or a traction arrester device. Caution Danger of electric shock: the length of the conductors between the traction arrester device and the terminal blocks must be such that the active conductors are put under tension before the earth conductor. 6.8.8 Connecting the indoor module 1. Remove the front panel of the casing. 2. Fit the cable clamps and run the cables through the cable clamps. 3. Connect the power supply cable to the electric panel. 4. Connect the various components to the corresponding terminals on the indoor module. 5. Connect the electrical back-up. 6. Tighten the cable clamps. 7. Put the front panel back in place. Fig.46 MW-1001217-1 1 2 D E F 230V~ NEW 4 5 6 7 230V~ L N 10mm 7 7 1 1 6 Installation 44 7762758 - v05 - 19082020
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6.8.9 Connecting the outdoor unit bus 1. Connect the outdoor unit bus between the S2 and S3 terminals on the X23 connector in the indoor unit's EHC–05 central unit PCB. 2. Position the SW8–3 switch (except for AWHP 4.5 MR) for the outdoor unit PCB to ON. Danger Do not connect anything to S1. 6.8.10 Fitting the outdoor sensor Plugs diameter 4 mm/drill diameter 6 mm 1. Choose a recommended location for the outdoor sensor. 2. Put the 2 plugs in place, delivered with the sensor. 3. Secure the sensor using the screws provided (diameter 4 mm). 4. Connect the cable to the outdoor temperature sensor. Recommended positions Place the outside sensor in a position that covers the following characteristics: On a façade of the area to be heated, on the north if possible. Half way up the wall of the area to be heated. Under the influence of changes in the weather. Protected from direct sunlight. Easy to access. Fig.47 MW-1001220-1 X23 S1 S2 S3 MW-1001220-1 1 S3 S3 S2 S2 3 12 SW8 2 Fig.48 MW-8800N003-6 2 3 4 6 Installation 7762758 - v05 - 19082020 45
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Fig.49 MW-8800N001-3 2 1 2 1 1 2 H 1/2 H (min. 2,5 m) 1/2 H (min. 2,5 m) 1/2 Z H Z 1 Optimum location 2 Possible position H Inhabited height controlled by the sensor Z Inhabited area controlled by the sensor Positions to be avoided Avoid placing the outside sensor in a position with the following characteristics: Masked by part of the building (balcony, roof, etc.). Close to a disruptive heat source (sun, chimney, ventilation grid, etc.). Fig.50 MW-3000014-2 6.8.11 Connecting the outdoor temperature sensor 1. Connect the outdoor temperature sensor to the T Out input on the SCB-10 PCB of the indoor unit. Important Use a cable with a minimum cross-section of 2x0.35 mm2 and a maximum length of 30 m. Fig.51 MW-1001221-1 1 6 Installation 46 7762758 - v05 - 19082020
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6.8.12 Connecting and configuring the electrical back-up Accessing the indoor module terminal blocks 1. Remove the retaining screw. 2. Remove the protective cover. Connecting the electrical back-up to the indoor unit Caution The length of the conductors between the cable clamp and the terminals must be such that the active conductors are put under tension before the earth conductor. Feed the electrical back-up heater power supply cable into the 230-V cable duct. Adapt the length of the cables and check their positions with a cable clamp. Single-phase connection A Bridge B Power supply Three-phase connection A Bridge B Power supply Press the orange push-button to allow the wire to be correctly inserted in the connector and locked. Fig.52 MW-1001223-1 1 2 Fig.53 2-6 kW 2 kW MW-1001224-4 HP029=1 HP029=2 230V~ 1 3 Fig.54 MW-1001225-3 1 3 4-8 kW 4 kW HP029=1 HP029=2 400V 3N~ 4-12 kW HP029=1 HP029=2 400V 3N~ 8-12 kW HP029=1 HP029=2 400V 3N~ 8 kW 6 Installation 7762758 - v05 - 19082020 47
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Configuring the output for the immersion heater Tab.31 Power supply Setting the Backup type (HP029) pa rameter Bridge Backup 1 capacity (HP034) Backup 2 capacity (HP035) Total output of back-up 1+2 Single phase 2 Electrical Stages between C2 and C1 2 kW 4 kW 6 kW 1 Electrical Stage between C2 and C1 2 kW not used 2 kW Three phase 2 Electrical Stages between C3 and C2 4 kW 8 kW 12 kW between C2 and C1 8 kW 4 kW 12 kW Remove bridge 4 kW 4 kW 8 kW 1 Electrical Stage between C2 and C1 8 kW not used 8 kW Remove bridge 4 kW not used 4 kW Configure the heat pump parameters Tab.32 Access Parameter Description Adjustment re quired 23.5 Air Src Heat pump > Parameters, counters, signals > Adv. Parameters Backup type (HP029) Type of backup used in the heat pump 1 Electrical Stage 2 Electrical Stages Backup 1 capacity (HP034) Declaration of the capacity of the 1st stage of the electrical backup used for the energy counter 0 kW to 10 kW Backup 2 capacity (HP035) Declaration of the capacity of the 2nd stage of the electrical backup used for the energy counter 0 kW to 10 kW 6.9 Connecting options 1. Connect the options according to the configuration of the installation to the X12 or X28 connector on the EHC–05 PCB in the indoor module. Tab.33 Connecting the options to X28 X28 connector Description T dhw 1 Optional: Connection of a second domestic hot water sensor for domestic hot water tanks with two sensors. Top sensor. T dhw 2 Connection of the main domestic hot water sensor: for tanks designed with a single sensor, for domestic hot water tanks with two sen sors. Bottom sensor. T out Not used Tab.34 Connecting the options to X12 X12 connector Description R-Bus terminals Connection of the Baxi uSense connected ther mostat, an on/off thermostat (ON/OFF) or a modulating thermostat. BL1 IN and BL2 IN Connection of multi-function dry contact inputs On Fig.55 MW-1001206-1 R-Bus T dhw 1 T dhw 2 T out BL1 IN BL2 IN So+ So- Condensation X15 X26 X2 X25 X13 X6 X21 X24 X12 X9 X4 X5 X19 X17 X16 X10 X23 X30 X18 X1 X20 EHC-05 X7 X8 X27 X22 } X28 } 6 Installation 48 7762758 - v05 - 19082020
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X12 connector Description SO+/SO- input Connection of an electrical energy meter Condensation ter minals Connection of a condensation sensor for under floor cooling 6.9.1 Connecting an on/off or modulating thermostat The on/off or modulating thermostat is connected to the R-Bus terminals on the EHC–05 PCB or the optional SCB-10 PCB. The PCBs are delivered with a bridge on the R-Bus terminals. The R-Bus input can be configured to add the flexibility of using several types of on/off thermostat or OpenTherm (OT). 1. Configure the parameters for the circuit concerned: Tab.35 Configuration of the R-Bus input for using an on/off thermostat (dry contact) Access Parameter Description 21.7 CIRCA0, 19.8 CIRCA1, CIRCB1 or CIRCC1 > Parameters, counters, signals > Parameters OTH LogicLev contact (CP640, CP641, CP643) Configuration of the on/off input contact direction for heating mode. Closed (default value): heating demand when contact is closed Open: heating demand when contact is open RevContactOTH cool (CP690, CP691, CP693) Reversal of the direction of the logic in cooling mode compared to heating mode No (default value): cooling demand uses the same logic as the heating demand Yes: cooling demand uses the reverse logic to the heating demand Tab.36 OTH LogicLev contact and RevContactOTH cool parameter settings Value of the OTH LogicLev contact parameter (CP640, CP641, CP643) Value of the RevContactOTH cool parameter (CP690, CP691, CP693) Position of the on/off contact for heating Position of the on/off contact for cooling Closed (default value) No (default value) Closed Closed Open No Open Open Closed Yes Closed Open Open Yes Open Closed 6.9.2 Configuring a thermostat with a heating/cooling control contact The AC thermostat (air conditioning) is always connected to the R-Bus and BL1 terminals on the EHC–05 PCB. The AC thermostat is only compatible with configurations with a single heating circuit. Priority will be given to the AC thermostat input over the other Summer/ Winter modes (Auto/Manual). The PCBs are delivered with a bridge on the R-BUS terminals. 1. Connect the AC thermostat to the BL1 input on the EHC–05 PCB. 1 EHC–05 PCB 2 Room unit 3 Output: On/Off 4 "Heating/cooling contact" output On Fig.56 MW-1001290-1 22° 3 2 4 1 R-Bus BL1 6 Installation 7762758 - v05 - 19082020 49
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2. Configure the heat pump parameters Tab.37 Access Parameter Description Adjustment re quired 23.5 Air Src Heat pump > Parameters, counters, signals > Adv. Parameters BL function (AP001) BL input function selection Heating Cooling BL1 contact config. (AP098) BL1 input contact configuration Closed: function active when BL contact is closed Open: function active when BL contact is open Closed or Open Tab.38 Access Parameter Description Adjustment re quired 21.7 CIRCA0> Parameters, counters, signals > Parameters OTH LogicLev contact (CP640) Opentherm Logic level contact of the zone Closed: heating demand when contact is closed Open: heating demand when contact is open Closed or Open RevContactOTH cool (CP690) Reversed OpenTherm contact in cooling mode for heat demand per zone No: follows the heating logic Yes: follows the reverse of the heating logic Yes or No Tab.39 Configuration A - by default Value of the OTH LogicLev contact (CP640) parameter Value of the BL1 contact config. (AP098) parameter The BL1 multifunc tion input is Operating mode for the heat pump If the OT contact is open If the OT contact is closed Closed (default val ue) Closed (default val ue) Open Cooling No cooling demand Cooling demand Closed (default val ue) Closed (default val ue) Closed Heating No heating demand Heating demand Tab.40 Configuration B Value of the OTH LogicLev contact (CP640) parameter Value of the BL1 contact config. (AP098) parameter The BL1 multifunc tion input is Operating mode for the heat pump If the OT contact is open If the OT contact is closed Closed Open Open Heating No heating demand Heating demand Closed Open Closed Cooling No cooling demand Cooling demand Tab.41 Configuration C Value of the OTH LogicLev contact (CP640) parameter Value of the BL1 contact config. (AP098) parameter The BL1 multifunc tion input is Operating mode for the heat pump If the OT contact is open If the OT contact is closed Open Closed Open Cooling Cooling demand No cooling demand Open Closed Closed Heating Heating demand No heating demand Tab.42 Configuration D Value of the OTH LogicLev contact (CP640) parameter Value of the BL1 contact config. (AP098) parameter The BL1 multifunc tion input is Operating mode for the heat pump If the OT contact is open If the OT contact is closed Open Open Open Heating Heating demand No heating demand Open Open Closed Cooling Cooling demand No cooling demand On 6 Installation 50 7762758 - v05 - 19082020
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6.10 Filling the heating circuit Before filling the heating system, flush it thoroughly. Important The use of glycol to fill the heating circuit is formally prohibited. The use of glycol in the heating circuit invalidates the warranty. 1. Fill the installation until a pressure of 0.15 to 0.2 MPa (1.5 to 2 bar) is achieved. 2. Check for any water leaks. 3. Completely vent the indoor unit and the installation for optimum running. 6.10.1 Flushing new installations and installations less than 6 months old Before filling the heating installation, it is essential to remove any debris (copper, caulking, soldering flux) from the installation. 1. Clean the installation with a powerful universal cleaner. 2. Flush the installation with at least 3 times the volume of water contained in the central heating system (until the water runs clear and shows no impurities). 6.10.2 Flushing an existing installation Before filling the heating installation, it is essential to remove any sludge deposits which have accumulated in the heating circuit over the years. 1. Remove any sludge from the installation. 2. Flush the installation with at least 3 times the volume of water contained in the central heating system (until the water runs clear and shows no impurities). 6.11 Filling the installation 6.11.1 Treatment of the heating water In many cases, the heat pump and the heating system can be filled with mains water, without treating the water. Caution Do not add any chemical products to the heating water without first consulting a water treatment specialist. For example: antifreeze, water softeners, products to increase or reduce the pH value, chemical additives and/or inhibitors. These may cause faults in the heat pump and damage the heat exchanger. The water in the installation must comply with following characteristics: Tab.43 Heating water specifications Specifications Unit Total system output ≤ 70 kW Hydrogen potential (pH) 7.5 - 9 Conductivity at 25°C μS/cm 10 to 500 Chlorides mg/litre ≤ 50 Other components mg/litre < 1 Total water hardness °f 7 - 15 °dH 4 - 8.5 mmol/l 0.7 - 1.5 If water treatment proves necessary, Baxi recommends the following manufacturers: 6 Installation 7762758 - v05 - 19082020 51
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Cillit Climalife Fernox Permo Sentinel 6 Installation 52 7762758 - v05 - 19082020
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7 Commissioning 7.1 General The heat pump is commissioned: When it is used for the first time; after a prolonged shutdown. Commissioning of the heat pump allows the user to review the various settings and checks to be made to start up the heat pump in complete safety. 7.2 Checklist before commissioning 7.2.1 Checking the heating circuit 1. Check the volume of the expansion vessel(s) is sufficient for the volume of water in the heating installation. 2. Check the inflation pressure of the expansion vessel(s). 3. Check that the heating circuit contains adequate water. If necessary, top up with more water. 4. Check that the water connections are properly sealed. 5. Check that the heating circuit has been correctly purged. 6. Check that the filters are not clogged. Clean them if necessary. 7. Check that the valves and thermostatic radiator valves are open. 8. Check that all settings and safety devices are working correctly. 7.2.2 Checking the electrical connections 1. Check the mains electricity connection to the following components: Outdoor unit Indoor unit Electrical back-up 2. Check that the BUS cable is correctly positioned between the indoor unit and the outdoor unit, and that it is separate from the power supply cables. 3. Check the conformity of the circuit breakers used: Outdoor unit circuit breaker Indoor unit circuit breaker Electrical back-up circuit breaker 4. Check the positioning and connection of the sensors: Room temperature sensor (if present) Outdoor temperature sensor Flow sensor for the second circuit (if present) 5. Check the connection of the circulating pump(s). 6. Check that the wires and terminals are properly tightened or connected to the terminal blocks. 7. Check the separation of the power and safety extra-low voltage cables. 8. Check the connection of the underfloor heating safety thermostat (if used). 9. Check that traction arrester devices are used for all cables exiting the appliance. 7.2.3 Checking the refrigeration circuit 1. Check the position of the outdoor unit, distance from the wall. 2. Check the tightness of the refrigerant connections. 3. Ensure that the evacuation pressure has been checked before filling. 4. Ensure that the evacuation time and the outdoor temperature have been checked during evacuation. 7 Commissioning 7762758 - v05 - 19082020 53
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7.3 Commissioning procedure Caution Initial commissioning must be performed by a qualified professional. 1. Refit all the panels, fascias and covers on the indoor unit and outdoor unit. 2. Arm the circuit breakers on the electric panel: Outdoor unit circuit breaker Indoor unit circuit breaker Electrical back-up circuit breaker 3. Activate the on/off switch on the indoor unit. The heat pump is switched on. The Welcome message is displayed. 4. Select the country and language. 5. Activate the Daylight Saving Time function. 6. Set the date and time. 7. Set the CN1 and CN2 parameters. The values are available on the data plate of the indoor unit. They are also shown in the table below. The CN1 and CN2 parameters are used to indicate to the system the type of outdoor unit and back-up present on the installation. They can be used to preconfigure the parameters based on the installation configuration. 8. Select Confirm to save the settings. 9. The heat pump begins its vent cycle. Points to check: After commissioning, domestic hot water production takes priority. Keep this operating mode to increase the temperature and check that the heat pump is operating correctly. At the end of the vent cycle, if the heat pump does not start, check the flow temperature on the user interface. The flow temperature must be above 10 °C to enable the outdoor unit to start. This protects the condenser during defrosting. If the flow temperature is below 10 °C, the back-ups start instead of the outdoor unit. The outdoor unit takes over when the flow temperature reaches 20 °C. 7.3.1 Configuration numbers CN1 et CN2 Configuration numbers allow the heat pump to be configured according to the type of back-up and the output of the outdoor unit installed. Tab.44 With immersion heater; electrical back-up Output of the outdoor unit CN1 CN2 4.5 kW 1 2 6 kW 3 2 8 kW 5 2 7.4 Final instructions for commissioning 1. Check that the following installation components are switched on correctly: Circulating pumps Outdoor unit Heating back-ups Fig.57 MW-1001278-1 4 Fig.58 MW-6000659-3 Italiano English Nederlands Deutsch Français 7 Commissioning 54 7762758 - v05 - 19082020
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2. Check the flow rate in the installation. It must be above the minimum threshold. 3. Check the setting of the thermostatic mixing valve (for domestic hot water production). 4. Shut down the heat pump and carry out the following operations: After about 10 minutes, vent the air in the heating system. Check the hydraulic pressure on the user interface. If necessary, top up the water level in the heating system. Check the fouling level of the filter(s) present both in the heat pump and on the installation. If necessary, clean the filter(s). 5. Restart the heat pump. 6. Explain how the system works to the users. 7. Hand over all manuals to the user. 7 Commissioning 7762758 - v05 - 19082020 55
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8 Operation 8.1 Use of the control panel 8.1.1 Description of the user interface 1 Rotary knob to select a menu or setting 2 Validation button 3 Back key to return to the previous level or previous menu 4 Main menu key 5 Display screen 6 LED for status indication: continuous green = normal operation flashing green = warning continuous red = shutdown flashing red = lockout 8.1.2 Description of the home screen The home screen is displayed automatically after the appliance is started up. The screen goes into standby if no key is pressed for five minutes. Press one of the buttons on the user interface to exit the standby screen and display the home screen. 1 Access icons for menus and parameters The selected icon is highlighted. 2 Information on the selected icon 3 error notification: only visible if an error occurs 4 Navigation level: : User level : Installer level. This level is reserved for installers and is protected by an access code. When this level is active, the Off icon becomes On . Tab.45 Icons on the home screen and information Icon Information Description of the icon OK I Error status Information on operation of the appliance Maintenance status Maintenance message Installer access Installer Level Holiday programme Holiday mode in all circuits simultaneously 23.5 Air source heat pump Heat pump flow temperature display Water pressure Current water pressure display 21.7 , 23.5 , 24.5 , 19.8 , 23.5 23.5 , CIRCA/CIRCB Symbol representing the operation zone Temperature display for zone A/B Fig.59 MW-5000756-1 3 4 1 2 5 6 Fig.60 29,6°C 51,2°C 6,7°C 29,4°C 1,8 bar Not Set None OFF OK I I MW-3001011-1 23,2°C 2 4 3 1 8 Operation 56 7762758 - v05 - 19082020
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Icon Information Description of the icon DHW tank Temperature display for the domestic hot water Outdoor temperature Outdoor temperature display 8.2 Starting and stopping the heat pump 8.2.1 Starting the heat pump 1. Switch on the outdoor unit and the indoor module. 2. Start up the heat pump by pressing the on/off switch. 3. Confirm the selection by pressing the settings button. The heat pump begins an automatic venting cycle that lasts around 3 minutes and is repeated each time the power is cut. If there is a problem, an error message is displayed on the home screen. 4. Check the hydraulic pressure in the installation indicated on the user interface. Important Recommended hydraulic pressure between 0.15 and 0.2 MPa (1.5 and 2.0 bar). 8.2.2 Shutting down the heat pump The heat pump must be shut down in certain situations, for example during any intervention on the equipment. In other situations, such as an extended absence period, we recommend that the Holiday operating mode is used in order to benefit from the heat pump anti-blocking function and to protect the installation from frost. To shut down the heat pump: 1. Switch off the indoor module by pressing the on/off switch. 2. Cut the power to the indoor module, outdoor unit and back-up circuit breakers. 8 Operation 7762758 - v05 - 19082020 57
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9 Settings 9.1 Accessing the Installer level Certain parameters, which may affect the operation of the appliance, are protected by an access code. Only the installer is authorised to modify these parameters. To access the installer level: 1. Select the Off icon. 2. Enter the code 0012. The Installer level is activated On . After modifying the desired settings, exit the Installer level. 3. To exit the Installer level, select the On icon, then Confirm. If no actions are taken for 30 minutes, the system will automatically exit the Installer level. 9.2 Setting the parameters 9.2.1 Setting the heating curve The relationship between the outdoor temperature and the central heating flow temperature is controlled by a heating curve. This can be adjusted according the requirements of the installation. To set the heating curve for a zone: 1. Select the icon for the zone to be modified; , for example. 2. Select Heating Curve. 3. Set the following parameters: Tab.46 Parameter Description Slope: Value of the heating curve gradient. underfloor heating circuit: gradient between 0.4 and 0.7 radiator circuit: gradient of approx. 1.5 Max: Maximum temperature of the circuit Base: Curve base point temperature (default value: Off = auto matic mode). If Base: Off, the curve base point temperature becomes equal to the room set point temperature 50 °C; 0 °C Water temperature in the circuit for an outdoor tempera ture. This data is visible all along the curve. 9.2.2 Saving the installer details The name and phone number of the installer can be saved so that the user can find it easily. 1. Press the key. 2. Select System Settings > Installer Details. 3. Enter the name and phone number. 9.2.3 Saving the commissioning settings You can save all installation-specific settings. These settings can be restored if necessary, for example after replacement of the main electronic control system board. On Fig.61 MW-5000765-3 Slope: 1.5 Max: 90˚C Base: 20˚C 50˚C;0˚C Heating curve 14 : 23 Zone setup On 9 Settings 58 7762758 - v05 - 19082020
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1. Press the key. 2. Select Advanced Service Menu > Save as commissioning settings. 3. Select Confirm to save the settings. When you have saved the commissioning settings, the option Revert commissioning settings is available in the Advanced Service Menu. 9.2.4 Resetting or re-establishing the parameters Configuring the type of outdoor unit and the type of back-up The configuration numbers must be reset if the EHC–05 PCB is replaced or if there is a setting error. To reset the configuration numbers: 1. Press the key. 2. Select Advanced Service Menu > Set Configuration Numbers > EHC– 05. 3. Set the CN1 and CN2 parameters. The values are available on the data plate of the indoor module. The CN parameters are used to indicate the type of outdoor unit present on the installation. 4. Select Confirm to save the settings. Auto-detecting options and accessories Use this function after replacing a heat pump PCB in order to detect all the devices connected to the local CANbus. To detect devices connected to the CAN bus: 1. Press the key. 2. Select Advanced Service Menu > Auto Detect. 3. Select Confirm to carry out the auto-detect. Reverting to the commissioning settings If the commissioning settings were saved, you can revert to the values specific to your installation. To revert to the commissioning settings 1. Press the key. 2. Select Advanced Service Menu > Revert commissioning settings. 3. Select Confirm to revert to the commissioning settings. Reverting to the factory settings To revert to the factory settings for the heat pump: 1. Press the key. 2. Select Advanced Service Menu > Reset to Factory Settings. 3. Select Confirm to revert to the factory settings. 9.2.5 Improving heating comfort The system does not allow the simultaneous production of heating and domestic hot water. If the heating causes any kind of discomfort, the following settings can be adjusted to improve the comfort level: Modify the timer programming for domestic hot water production. Schedule domestic hot water production at night, for example. Modify the domestic water production setting parameters. On On On On On 9 Settings 7762758 - v05 - 19082020 59
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1. Adjust the following domestic hot water production setting parameters: Tab.47 Access Parameter Description Adjustment required DHW tank > Parameters, counters, signals > Parameters Hysteresis DHW (DP120) Hysteresis temperature relative to the DHW temperature setpoint Increase the set point tem perature differential trigger ing the domestic hot water tank to be charged Min. CH before DHW (DP048) Minimum heating duration between two periods of domestic hot water production Increase the minimum heat ing duration between two do mestic hot water production runs 2. If possible, set the production of domestic hot water for overnight periods using the timer programming for the domestic hot water tank. 9.2.6 Improving domestic hot water comfort The system does not allow the simultaneous production of heating and domestic hot water. If the domestic hot water causes any kind of discomfort, the following settings can be adjusted to improve the comfort level: Modify the timer programming for domestic hot water production. Schedule domestic hot water production based on your usage habits. Modify the domestic hot water production setting parameters. The consumption of electricity may rise. 1. Adjust the following domestic hot water production setting parameters: Tab.48 Access Parameter Description Adjustment required DHW tank > Parameters, counters, signals > Parameters Hysteresis DHW (DP120) Hysteresis temperature relative to the DHW temperature setpoint Reduce the set point temper ature differential triggering the domestic hot water tank to be charged. Min. CH before DHW (DP048) Minimum heating duration between two periods of domestic hot water production Reduce the minimum heating duration between two do mestic hot water production runs Max. DHW duration (DP047) Maximum duration of the domestic hot water production Increase the maximum au thorised duration for domes tic hot water production DHW management (DP051) ECO mode: use of the heat pump only. Comfort mode: use of the heat pump and backup energy sources Select Comfort (HP+Boiler) to systematically use the heat pump and the back-ups. 9.2.7 Drying screed with an outdoor unit connected The screed drying function reduces the drying time of the screed for underfloor heating. This function must be activated for each zone. Every day at midnight, the setpoint temperature is recalculated and the number of days is decreased. For the screed drying times, follow the screed manufacturer's specifications. On On 9 Settings 60 7762758 - v05 - 19082020
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1 Number of days of drying 2 Drying start temperature 3 Drying end temperature Important If the return water temperature is below 10 °C, screed drying will start using the electrical back-up until the return water reaches a temperature of 20 °C (to prevent it taking too long, particularly in winter). Tab.49 Example: to prepare the screed on which the floor covering will be applied, the parameters need to be adjusted every seven days Day 1 Number of days of drying 2 Drying start temper ature 3 Drying end temper ature Remarks 1 to 7 7 +25 °C +55 °C or maximum au thorised flow tempera ture In increments of 5 K 8 to 14 7 +55 °C or maximum au thorised flow tempera ture +55 °C or maximum au thorised flow tempera ture No night reduction 15 to 21 7 +55 °C or maximum au thorised flow tempera ture +25 °C In increments of 5 K 1. Set the parameters for the circuit with screed to be dried. Tab.50 Access Adjustment required Parameter Description 21.7 CIRCA0, 19.8 , CIRCA1, CIRCB1 or CIRCC1 > Set Screed Drying 1 Number of days of dry ing Zone screed drying Setting of the screed drying program of the zone 2 Drying start temperature ScreedStartTemp Setting of the start temperature of the screed drying program of the zone 3 Drying end temperature ScreedStopTemp Setting of the stop temperature of the screed drying program of the zone The screed drying programme will start immediately and continue for the selected number of days. At the end of the programme, the selected operating mode will restart. 9.2.8 Drying screed without the heat pump outdoor unit The indoor module can be used for drying screed using the electrical back-up. It is not necessary to connect the outdoor unit. 1. Switch on the indoor module and activate the screed drying function. 2. Adjust the parameters for screed drying. If the outdoor unit is not connected, the back-ups will start automatically. Fig.62 MW-5000764-2 10 9 8 7 6 5 4 3 2 1 23 20 26 29 32 35 38 41 44 47 ° C 00:00 00:00 00:00 1 2 3 On Fig.63 MW-1000988-1 9 Settings 7762758 - v05 - 19082020 61
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9.2.9 Installing a buffer tank A buffer tank is used to separate the heating circuits or to store energy. The buffer tank is used with one or two temperature sensors. The CIRCA0 circuit cannot be used at the same time as a buffer tank. 1. Connect the temperature sensor(s) for the buffer tank to the corresponding connectors: Tab.51 Connection Description Fig.64 One sensor MW-1001293-1 SCB-10 Buffer tank temperature sensor to the Tsyst1 connector on the SCB-10 PCB Fig.65 Two sensors MW-1001295-1 SCB-10 Buffer tank bottom temperature sensor to the Tsyst1 con nector on the SCB-10 PCB Buffer tank top temperature sensor to the Tsyst2 connector on the SCB-10 PCB 2. Configure the pump for the CIRCA0 zone as a system pump: Tab.52 Access Parameter Adjustment required 23.5 Air Src Heat pump > Parameters, counters, signals > Adv. Parameters Boiler Pump function (AP102) No: all demands 3. Deactivate the CIRCA0 : circuit Tab.53 Access Parameter Adjustment required 21.7 CIRCA0 Zone Function (CP020) Disable 4. Activate the buffer tank function by selecting the number of sensors: Tab.54 Access Parameter Adjustment required > Installation Setup > Buffer tank off Type Buffer Tank (BP001) Depending on the situation: Disabled One sensor Two sensors On 9 Settings 62 7762758 - v05 - 19082020
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5. Select the operating mode for the buffer tank. Buffer tank operating mode Adjustment required Buffer tank used as a low-loss header. By default, the buffer tank is managed as a low-loss header and does not require any spe cific settings. The temperature set point for the buffer tank is equal to the maximum set point temperature value taken from all the associated circuits. Example: with the temperature set points of CIRCA1: 22 °C, CIRCB1: 21 °C and CIRCC1: 20.5 °C, the buffer tank set point will be: (Maximum temperature for CIRCA1, CIRCB1, CIRCC1) = 22 °C. Buffer tank used in storage mode Configure the buffer tank load. See chapter: Configuring the buffer tank for storage, page 63 9.2.10 Configuring the buffer tank for storage The buffer tank is used to store energy either via the buffer tank timer programme or by a contact connected to the TEL digital input. The buffer tank must be installed and configured with one or two temperature sensors. 1. Program the load timers for the buffer tank. Tab.55 Access Adjustment required > Installation Setup > Buffer tank > Buffer Tank Schedule Program the Operating activity which will activate the buffer tank load. 2. If necessary, configure and program the TEL digital input. Tab.56 Access Parameter Description Adjustment required > Installation Setup > Digital input > Parameters Digital input config (EP046) Sets the general configuration of the digital input Buffer Tank input Logic level Digi In (EP056) Sets the logic level contact of the Smart Control Board digital input Open: Buffer tank load when the contact is opened. Closed: Buffer tank load when the contact is closed. 3. Select the set point temperature control mode for the buffer tank load: Tab.57 Access Parameter Description Adjustment required > Installation Setup > Buffer tank Buff Tank HC Strat. (BP002) Heating Cooling Control strategy used with buffer tank Fixed setpoint Calculated setpoint Dedicated slope On Fig.66 MW-1001294-1 SCB-10 9 Settings 7762758 - v05 - 19082020 63
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Tab.58 Buff Tank HC Strat. (BP002) Adjustment required Description Fixed setpoint The buffer tank set point temperature is equal to the value for the parameter Stp Buffertank Heat (BP003) or Setp Buffertank Cool (BP004). Example: 55 °C Calculated setpoint The buffer tank set point temperature is equal to the highest set point for the connected heating circuits with the overheating temperature set by the parameter BufferTankTcalOffset (BP013). Example: with CIRCA1: 22 °C, CIRCB1: 21 °C, the buffer tank setpoint will be: 22 °C + 10 °C = 32 °C Dedicated slope The buffer tank set point temperature depends on the outdoor temperature, the parameters Stp Buffertank Heat (BP003) and Buffer Tank Slope (BP005) and the following formula: Buffer tank set point = (- outdoor temperature) x Buffer Tank Slope + Stp Buffertank Heat Example: (– -5 °C ) x 1.5 + 55 °C = 62.5 °C Tab.59 Buffer tank management with one sensor Buffer tank status Description Fig.67 Buffer tank in demand MW-1000347-2 2 1 The buffer tank is in load demand when the temperature measured by the sensor is less than the difference between the buffer tank temperature set point and the temperature hysteresis. 1 Sensor temperature = buffer tank set point temperature – BufferTank HystStart (BP014): Hysteresis of temperature which determines the start of Buffer Tank storage 2 BufferTank HystStart (BP014) : Hysteresis of temperature which determines the start of Buffer Tank storage Fig.68 Buffer tank loaded MW-1000346-2 1 The buffer tank is loaded when the temperature measured by the sensor is equal to the buffer tank temperature set point. 1 Sensor temperature = buffer tank set point temperature + BufferTank HystStop (BP019): Hysteresis of temperature which determines the start of Buffer Tank storage Tab.60 Buffer tank management with two sensors (optional) Buffer tank status Description Fig.69 Buffer tank in demand MW-1000352-2 1 2 3 The buffer tank is in load demand when the temperature measured by the top sensor is less than the difference: temperature set point - temperature hyste resis. 1 Buffer tank top sensor temperature = buffer tank set point temperature – BufferTank HystStart (BP014): Hysteresis of temperature which determines the start of Buffer Tank storage 2 BufferTank HystStart (BP014): Hysteresis of temperature which determines the start of Buffer Tank storage ) 3 Temperature of the buffer tank bottom sensor Fig.70 Buffer tank loaded MW-1000344-2 1 3 The buffer tank is loaded when the temperature measured by the bottom sen sor is equal to the buffer tank temperature set point. 1 Temperature of the buffer tank top temperature sensor 3 Temperature of the buffer tank bottom sensor = buffer tank set point temperature + BufferTank HystStop (BP019): Hysteresis of temperature which determines the start of Buffer Tank storage 9 Settings 64 7762758 - v05 - 19082020
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4. Configure the temperature set point parameters for the buffer tank load: Tab.61 Parameters to configure Access Parameter Description Default value > Installation Setup > Buffer tank > Parameters Stp Buffertank Heat (BP003) Temperature setpoint for buffer tank in heating mode From 5 °C to 100 °C 70 °C Setp Buffertank Cool (BP004) Temperature setpoint for Buffer tank in cooling mode From 5 °C to 25 °C 18 °C Buffer Tank Slope (BP005) Buffer Tank Slope From 0 to 4 1.5 BufferTankTcalOffset (BP013) Offset to add to the calculate Setpoint of the Buffer Tank From 0 °C to 20 °C 5 °C BufferTank HystStart (BP014) Hysteresis of temperature which determines the start of Buffer Tank storage From 1 °C to 20 °C 6 °C BufferTank HystStop (BP019) Hysteresis of temperature which determines the stop of buffer tank storage From -30 °C to +30 °C 0 °C Do not change the value 5. Configure the back-ups so that they will start when the buffer tank set point is greater than 60 °C: Tab.62 Access Parameter Description Adjustment required 23.5 Air Src Heat pump > Parameters, counters, signals > Parameters Bivalent temperature (HP000) Bivalent temperature: Above the bivalent temperature, the backup energy source is not allowed to operate 5 °C 6. Configure the parameter Max CH flow setpoint (AP063): Tab.63 Access Parameter Description Adjustment required 23.5 Air Src Heat pump > Parameters, counters, signals > Adv. Parameters Max CH flow setpoint (AP063) Maximum central heating flow temperature setpoint Enter a temperature higher than the buffer tank set point, otherwise the buffer tank temperature will be limited by this parameter. 9.2.11 Configuring and using the CB04 auto-filling option kit The CB04 auto-filling option kit is used to fill the heating circuits or to maintain the optimal pressure in the heating circuits, without human intervention. After having followed the instructions for assembly of the option kit, simply configure a few parameters to automatically obtain or maintain an optimal pressure. The heat pump does not start up during the auto-filling phase. 1. Activating the auto-filling function: Tab.64 Access Parameter Adjustment required > Installation Setup > Heating cir cuit autofill > Settings Auto Filling (AP014) Auto On 9 Settings 7762758 - v05 - 19082020 65
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2. If necessary, start filling the installation: Tab.65 Access Parameter > Installation Setup > Heating circuit autofill > Start water filling: Select this parameter to start filling the installa tion. The parameter Filling Inst Timeout (AP023) defines the maxi mum duration authorised to obtain a pressure of 0.3 bar during the first water fill with the auto-filling kit. It is 60 minutes. If there is an error on the user interface, restart the auto-filling function as many times as needed. 3. Configuring the auto-filling function: Tab.66 Access Parameter Description Default value > Installation Setup > Heating circuit autofill > Settings Min. water pressure (AP006) Appliance will report low water pressure below this value From 0 bar to 6 bar 0.3 bar Filling Inst Timeout (AP023) Maximum duration authorised to ob tain a pressure of 0.3 bar during the first water fill with the auto-filling kit. From 0 Min to 60 Min 60 minutes Filling Interval (AP051) The minimum time that is allowed between two top-up fillings. From 0 to 65535 days 90 days Top up timeout (AP069) Maximum time to top up the water in the circuit during operation. 0 Min to 65535 Min 5 minutes Operational Pressure (AP070) The operational water pressure the device should be working on. From 0 bar to 2.5 bar 2 bar InstallMaxTimeOut (AP071) Maximum time that is needed to fill the complete installation. From 0 Sec to 3600 Sec 3600 seconds 9.2.12 Supplying the heat pump with photovoltaic energy When lower cost electrical energy is available, such as photovoltaic energy, the heating circuit and domestic hot water tank (if present) can be overheated. Underfloor cooling cannot be supplied with power in this way. 1. Cut off the mains electricity to the indoor unit. 2. Connect a dry contact to the BL1 or BL2 IN multifunction input. 3. Switch the indoor unit back on. 4. Configure the heat pump parameters Tab.67 Input parameters Access Parameter Description Adjustment required 23.5 Air Src Heat pump > Parameters, counters, signals > Parameters BL function (AP001) BL input function selection Photovoltaic HP Only or PV HP And backup BL2 function (AP100) BL2 input function selection Photovoltaic HP Only or PV HP And backup On 9 Settings 66 7762758 - v05 - 19082020
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5. In order to voluntarily overheat the installation and benefit from low- tariff electricity, set the set point temperatures that can be exceeded. Tab.68 Voluntary overheating parameters Access Parameter Description Adjustment required 23.5 Air Src Heat pump > Parameters, counters, signals > Parameters > Adv. Parameters Offset heating - PV (HP091) Heating setpoint temperature offset when photovoltaic energy is available Set the authorisation to exceed the heating set point temperature from 0 to 30 °C Offset DHW - PV (HP092) Domestic hot water setpoint temperature offset when photovoltaic energy is available Set the authorisation to exceed the domestic hot water set point temperature from 0 to 30 °C 9.2.13 Reducing the noise level of the outdoor unit Silent mode is used to reduce the noise level on the outdoor unit during programmed hours, particularly at night. This mode gives temporary precedence to silent running rather than temperature control. This package is not compatible with the AWHP 4.5 MR outdoor unit. 1. Connect the silent running kit to the outdoor unit. 2. Connect the silent running kit to one of the CIRCA1, CIRCB1, CIRCC1 or CIRCAUX1 zone pump outlets of the SCB-10 PCB. 3. Set the timer programming for this zone: silent mode corresponds to the Sleep activity. 9.3 Menu tree On Tab.69 Menus accessible using the button Installation Setup Commissioning Menu Advanced Service Menu Error History System Settings Version Information 9.4 List of parameters The appliance parameters are described directly in the user interface. Some of these parameters are listed in the following chapters with additional information and their default values. 9.4.1 Installation Setup > CIRCA0 > Parameters, counters, signals The CIRCA0 circuit is on the EHC–05 PCB. CP : Circuits Parameters = Heating circuit parameters On 9 Settings 7762758 - v05 - 19082020 67
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Tab.70 Parameters menu Parameter Description Factory setting MaxZoneTFlowSetpoi nt (CP000) Maximum Flow Temperature setpoint zone CIRCA0: can be set from 7 °C to 75 °C Electrical back-up: 75 Zone Function (CP020) Type of CIRCA0 connected to the EHC–05 PCB: Disable = heating circuit deactivated Direct = radiators. Cooling not possible. Mixing Circuit = underfloor heating. Cooling possible. Swimming pool = not available High Temperature = not used Fan Convector = convection fan. Cooling possible. Direct MaxReducedRoomT. Lim (CP070) Max Room Temperature limit of the circuit in reduced mode, that allows switching to comfort mode Can be set from 5 °C to 30 °C 16 Zone HCZP Comfort (CP210) Comfort footpoint of the temperature of heat curve of the circuit can be set from 16 to 90 °C set to 15 = the curve base temperature is set automatically and is the same as the room set point temperature 15 Zone HCZP Reduced (CP220) Reduced footpoint of the temperature of heat curve of the circuit can be set from 6 to 90 °C set to 15 = the curve base temperature is set automatically and is the same as the room set point temperature 15 Zone Heating Curve (CP230) Heating curve temperature gradient of the zone Can be set from 0 to 4 1.5 ZoneRoomUnitInfl (CP240) Adjustment of the influence of the zone room unit Can be set from 0 to 10 3 TypeReducedNightM ode (CP340) Parameter linked to the CP070 parameter Type of reduced night mode, stop or maintain heating of circuit Stop heat demand: heating is deactivated when the room set point tempera ture set in the timer programme is below the threshold set in CP070. Continue heat demand: the heating set point is maintained independently of the threshold set in CP070. Stop heat demand Control strategy (CP780) Selection of the control strategy for the zone Automatic Room Temp. based Outdoor Temp. based Outdoor & room based Automatic 9.4.2 Installation Setup > Stratified DHW tank > Parameters, counters, signals A domestic hot water sensor must be connected to the EHC–05 PCB to display these parameters. The Stratified DHW tank circuit is on the EHC– 05 PCB. Tab.71 Parameters menu Parameter Description Factory setting DhwMaxTemp (DP046) Max. flow temperature for domestic hot water production. Can be set from 10 to 70 °C 70 °C Max. DHW duration (DP047) Maximum authorised duration for domestic hot water production. Can be set from 1 to 10 hours 3 hours Min. CH before DHW (DP048) Minimum heating duration between two domestic hot water production runs. Can be set from 0 to 10 hours 2 hours 9 Settings 68 7762758 - v05 - 19082020
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Parameter Description Factory setting DHW management (DP051) ECO mode: use of the heat pump only. Comfort mode: use of the heat pump and backup energy sources: ECO (Only HP): use of the heat pump only Comfort (HP+Boiler): use of the heat pump and back-ups ECO (Only HP) Hysteresis DHW (DP120) Hysteresis temperature relative to the DHW temperature setpoint Can be set from 0 °C to 40 °C 15 Tab.72 Adv. Parameters menu Parameter Description Factory setting Delay StartBackupDHW (DP090) Electrical back-up start-up time delay for domestic hot water. Can be set from 0 to 120 min 90 min Delay stop BackupDHW (DP100) Electrical back-up shutdown time delay for domestic hot water. Can be set from 0 to 120 min 2 min Delay BackupStageDHW (DP110) Electrical back-up second stage start-up time delay for domestic hot water. Can be set from 0 to 255 min 5 min DHW backup type (DP334) Backup type used for domestic hot water production: Indoor Unit: indoor unit electrical back-ups DHW Tank : DHW tank electrical back-ups IDU/DhwTank Cooling: Indoor unit electrical back-ups in winter/DHW tank electrical back-ups in cooling mode Indoor Unit 9.4.3 Installation Setup > CIRCA1/CIRCB1/DHW1/CIRCC1/ CIRCAUX1 > Parameters, counters, signals > Depending on the installation configuration, only certain circuits are available. The CIRCA1 \ CIRCB1 \ DHW1 \ CIRCC1 \ CIRCAUX1 circuits are on the SCB-10 PCB. Tab.73 Correspondence between the parameters and the circuits CPxx0 parameters ending in 0 correspond to the CIRCA1 circuit CPxx1 parameters ending in 1 correspond to the CIRCB1 circuit CPxx2 parameters ending in 2 correspond to the DHW1 circuit CPxx3 parameters ending in 3 correspond to the CIRCC1 circuit CPxx4 parameters ending in 4 correspond to the CIRCAUX1 circuit 9 Settings 7762758 - v05 - 19082020 69
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Tab.74 Parameters menu Parameter Factory setting for each circuit Description MaxZoneTFlowS etpoint (CP000 CP001 CP002 CP003 CP004) CIRCA1: Electrical back-up: 50 CIRCB1: Electrical back-up: 50 DHW1: Electrical back-up: 95 CIRCC1: Electrical back-up: 50 CIRCAUX1: Electrical back-up: 95 Maximum Flow Temperature setpoint zone For circuit A: Can be set from 7 °C to 100 °C Zone Function (CP020 CP021 CP022 CP023 CP024) CIRCA1: Direct CIRCB1: Disable DHW1: Disable CIRCC1: Disable CIRCAUX1: Disable Functionality of the zone Disable Direct Mixing Circuit Swimming pool High Temperature Fan Convector DHW tank Electrical DHW Time Program ProcessHeat DHW Layered DHW Internal tank DHW Commercial Tank DHW FWS EXT Zone HCZP Comfort (CP210 CP211 CP212 CP213 CP214) CIRCA1: 15 CIRCB1: 15 DHW1: 15 CIRCC1: 15 CIRCAUX1: 15 Comfort footpoint of the temperature of heat curve of the circuit Can be set from 15 °C to 90 °C set to 15 = the curve base temperature is set automatically and is the same as the room set point temperature Zone HCZP Reduced (CP220 CP221 CP222 CP223 CP224) CIRCA1: 15 CIRCB1: 15 DHW1: 15 CIRCC1: 15 CIRCAUX1: 15 Reduced footpoint of the temperature of heat curve of the circuit can be set from 6 to 90 °C set to 15 = the curve base temperature is set automatically and is the same as the room set point temperature TypeReducedNig htMode (CP340 CP341 CP342 CP343 CP344) CIRCA1: Stop heat demand CIRCB1: Stop heat demand DHW1: Stop heat demand CIRCC1: Stop heat demand CIRCAUX1: Stop heat demand Type of reduced night mode, stop or maintain heating of circuit Stop heat demand Continue heat demand Control strategy (CP780 CP781 CP782 CP783 CP784) CIRCA1: Automatic CIRCB1: Automatic DHW1: not used CIRCC1: Automatic CIRCAUX1: Automatic Selection of the control strategy for the zone Automatic Room Temp. based Outdoor Temp. based Outdoor & room based 9 Settings 70 7762758 - v05 - 19082020
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Tab.75 Adv. Parameters menu Parameter Factory setting for each circuit Description ConfigZonePump Out (CP290 CP291 CP292 CP293 CP294 ) CIRCA1: Zone output CIRCB1: Zone output DHW1: DHW mode CIRCC1: Zone output CIRCAUX1: DHW looping Configuration of Zone Pump Output Zone output CH mode DHW mode Cooling mode Error report Burning Service flag System error DHW looping Primary pump Buffer pump Zone Buffered (CP770 CP771 CP772 CP773 CP774 ) CIRCA1: Yes CIRCB1: Yes DHW1: Yes CIRCC1: Yes CIRCAUX1: Yes The zone is after a Buffer tank No Yes 9.4.4 Installation Setup > Air Src heat pump > Parameters, counters, signals HP : Heat-pump Parameters = Heat pump parameters AP : Appliance Parameters = Appliance advanced parameters Tab.76 Parameters menu Parameter Description Factory setting Bivalent temperature (HP000) Above the bivalent temperature, the backup energy source is not allowed to operate Can be set from -10 °C to 20 °C 5 Delay StartBackup CH (HP030) Start-up time delay for back-ups in central heating mode Can be set from 0 Min 600 Min 0 Delay stop backup CH (HP031) Shutdown time delay for back-ups in central heating mode Can be set from 0 Min to 600 Min 4 Delay Min.Outdoor T. (HP047) Start-up time delay for back-ups corresponding to the minimum outdoor tempera ture HP049. The dynamic time delay is activated when HP030=0 Can be set from 0 Min to 60 Min 8 Delay Max.Outdoor T (HP048) Start-up time delay for back-ups corresponding to the maximum outdoor temper ature HP050. The dynamic time delay is activated when HP030 = 0 Can be set from 0 Min 60 Min 30 Min.Outdoor T.backup (HP049) Minimum outdoor temperature used to set HP047. Can be set from -30 °C to 0 °C -10 Max.Outdoor T.backup (HP050) Maximum outdoor temperature used to set HP048. Can be set from -30 °C to 20 °C 15 Min. Outdoor T. HP (HP051) Minimum outdoor temperature authorising heat pump operation. Can be set from -20 °C to 5 °C -20 Delay BackupStage CH (HP108) Time delay for activating the second electrical back-up stage in central heating mode Can be set from 1 Min to 255 Min 4 Min. water pressure (AP006) Appliance will report low water pressure below this value Can be set from 0 bar to 6 bar 0.3 MessMinWaterPress ure (AP058) Warning message indicating that pressure is low Can be set from 0 bar to 2 bar 0.8 9 Settings 7762758 - v05 - 19082020 71
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Tab.77 Adv. Parameters menu Parameter Description of the advanced parameters EHC–05 factory setting Max. HP Flow T. (HP002) Maximum flow temperature of the heat pump without backup energy sources. Can be set from 20 °C to 65 °C 65 Min. HP Cooling T. (HP003) Minimum flow temperature of the heat pump in cooling mode Can be set from 5 °C to 30 °C 5 Minimum flow rate (HP010) Minimum flow rate. Can be set from 0 l/min to 90 l/min 5 for 4.5 kW 5 for 6 kW 8 for 8 kW Flow rate warning (HP011) Flow rate that triggers a warning message indicating that flow rate becomes insufficient Can be set from 0 l/min to 95 l/min 7 for 4.5 kW 7 for 6 kW 9 for 8 kW Backup type (HP029) Type of backup used in the heat pump: 0 =No Backup 1 =1 Electrical Stage 2 =2 Electrical Stages 3 =Boiler Backup 2 Elec. Pulse value (HP033) Value of the pulse coming from the electrical counter. Can be set from 0 Wh to 1000 Wh 1 Backup 1 capacity (HP034) Declaration of the capacity of the 1st stage of the electrical backup used for the energy counter. Can be set from 0 kW to 10 kW 0 Backup 2 capacity (HP035) Declaration of the capacity of the 2nd stage of the electrical backup used for the energy counter. Can be set from 0 kW to 10 kW 0 COP Threshold (HP054) COP threshold above which the heat pump is authorised to operate. 2.5 Hybrid mode (HP061) Not used 0 Boiler efficiency (HP068) Not used 100 Cool.Setpoint offset (HP079) Maximum offset applied to the cooling setpoint when a 0-10V humidity sensor is used Can be set from 0 °C to 15 °C 5 Humidity level (HP080) Relative humidity level over which the offset is added to the cooling setpoint Can be set from 0 % to 100 % 70 Setpoint Hyst. Low (HP089) Heat pump trip differential in relation to the set point temperature. Can be set from 0 to 10°C 4 °C Offset heating - PV (HP091) Heating setpoint temperature offset when photovoltaic energy is available Can be set from 0 °C to 30 °C 0 Offset DHW - PV (HP092) Domestic hot water setpoint temperature offset when photovoltaic energy is available Can be set from 0 °C to 30 °C 0 kW rating DHW backup (HP145) Power supply for the domestic hot water tank electrical back-up. Can be set from 0 to 10 kW 0 BL function (AP001) BL input function selection BL1: 1 = Full blocking of the installation – frost protection not guaranteed 2 = Partial blocking of the installation – installation frost protection 3 = User reset locking 4 = Backup relieved 5 = Generator relieved 6 =Gen.&Backup relieved 7 =High, Low Tariff 8 =Photovoltaic HP Only 9 = PV HP And backup 10 = Smart Grid ready 11 = Heating Cooling 2 9 Settings 72 7762758 - v05 - 19082020
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Parameter Description of the advanced parameters EHC–05 factory setting Manual Heat Demand (AP002) Enable manual heat demand function. In this mode, the temperature set point used will be that for the AP026. 0 Setpoint manual HD (AP026) Flow temperature setpoint for manual heat demand. Can be set from 7 to 70 °C Set point used when manual mode is active (AP002 = 1) 40 Cooling mode (AP028) Configuration of the cooling mode 0 = Off 1 = Active cooling on 0 Max CH flow setpoint (AP063) Maximum central heating flow temperature setpoint. Can be set from 20 °C to 75 °C Electrical back-up: 75 Humidity sensor (AP072) Humidity sensor configuration: 0 =No 1 =OnOff 2 =0-10V sensor 0 BL1 contact config. (AP098) BL1 input contact configuration: 0 = input active on Open contact 1 = input active on Closed contact 0 BL2 contact config. (AP099) BL2 input contact configuration: 0 = input active on Open contact 1 = input active on Closed contact 0 BL2 function (AP100) BL2 input function selection 1 = Full blocking of the installation – frost protection not guaranteed 2 = Partial blocking of the installation – installation frost protection 3 = User reset locking 4 = Backup relieved 5 = Generator relieved 6 =Gen.&Backup relieved 7 =High, Low Tariff 8 =Photovoltaic HP Only 9 = PV HP And backup 10 = Smart Grid ready 11 = Not used 2 De-aeration cycle (AP101) De-air cycle settings: 0 =No deair at power up 1 =Always deair at pwr 1 9.4.5 Installation Setup > Cascade management B > Parameters, counters, signals NP : Network Parameters = Cascade parameters Tab.78 Parameters Parameter Description Factory setting SCB-10 Cascade Permutation (NP005) Choice of the leading generator,.AUTO: Switching of order every 7 days Can be set from 0 to 127 0 Cascade Type (NP006) Cascading boilers by adding successively or in parallel, the boilers function simultaneously 0: Traditional 1: parallel 0 CascTOutsideHeat Parl (NP007) Outdoor start temperature heating of all stages in parallel mode Can be set from -10 °C to 20 °C 10 CascTPostRunGen ePump (NP008) Duration of post operation of the cascade generator pump Can be set from 0 Min to 30 Min 4 9 Settings 7762758 - v05 - 19082020 73
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Parameter Description Factory setting SCB-10 CascInterStageTim e (NP009) Switch on and switch off timing for the producer of the cascade Can be set from 1 Min to 60 Min 4 CascTOutsideCool Para (NP010) Outdoor start temperature cooling of all stages in parallel mode Can be set from 10 °C to 40 °C 30 CascadeTypeAlgo (NP011) Choice of Cascade Algorithm type, power or temperature Temperature Power Temperature CascPowerRiseTi me (NP012) Cascade, Time to reach Temperature Septoint Can be set from 1 to 10 1 CascForceStop Pprim (NP013) Force Primary Pump to Stop on cascade No Yes No Cascade Mode (NP014) Functionnement Mode of cascade : automatic, heating or cooling Automatic Heating Cooling Automatic Tab.79 Adv. Parameters ADV parameter Description of the ADV advanced parameters Factory setting SCB-10 NP001 Hysterese high for Producer Manager Can be set from 0.5 °C to 10 °C 3 NP002 Hysterese low for Producer Manager Can be set from 0.5 °C to 10 °C 3 NP003 Maximum error gain for Producer Manager Can be set from 0 °C to 10 °C 10 NP004 Proportional Factor for cascade with Temperature algorithm Can be set from 0 to 10 1 9.4.6 Installation Setup > Outside temp > Parameters, counters, signals Tab.80 Parameters Parameter Description Factory setting SCB-10 Outdoor sensor (AP056 ) Enable outdoor sensor No outside sensor AF60 QAC34 1 Summer Winter (AP073) Outdoor temperature: upper limit for heating Can be set from 15 °C to 30.5 °C 22 Season cross-over (AP075) Temperature variance from set outdoor upper temp. limit in which the generator will not heat or cool Can be set from 0 to 10 °C 4 9.4.7 Installation Setup > Digital input > Parameters, counters, signals EP : Entry Parameters = Input parameters 9 Settings 74 7762758 - v05 - 19082020
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Tab.81 Parameters Parameter Description Factory setting SCB-10 Digital input config (EP046) Sets the general configuration of the digital input Stop heating + DHW Stop heating Stop DHW Forced setpoint Buffer Tank input Stop heating + DHW Logic level Digi In (EP056) Sets the logic level contact of the Smart Control Board digital input Open Closed Off Closed Req FlowSetp digi In (EP066) Requested flow setpoint when digital input is configured to forced heat Can be set from 7 °C to 100 °C 80 9.4.8 Installation Setup > Analogue input > Parameters, counters, signals EP : Entry Parameters = Input parameters Tab.82 Adv. Parameters ADV parameter Description of the ADV advanced parameters Factory setting SCB-10 Sensor input config (EP036) Sets the general configuration of the sensor input Tsyst1 Disabled DHW tank DHW tank top Buffer tank sensor Buffer Tank top System (cascade) Disabled Sensor input config (EP037) Sets the general configuration of the sensor input Tsyst2 Disabled DHW tank DHW tank top Buffer tank sensor Buffer Tank top System (cascade) Disabled 9.4.9 Installation Setup > 0-10 V input > Parameters, counters, signals Tab.83 EP : Entry Parameters = Input parameters Parameter Description Factory setting SCB-10 SCB func. 10V PWMin (EP014) Smart Control Board function 10 Volt PWM input Off Temperature control Power control Off Max Setp Temp 0-10V (EP030) Sets the minimum set point temperature for 0 - 10 volts for the Smart Control Board Can be set from 0 °C to 100 °C 0 Min Setp Power 0-10V (EP031) Sets the maximum set point temperature for 0 - 10 volts for the Smart Control Board Can be set from 0.5 °C to 100 °C 100 9 Settings 7762758 - v05 - 19082020 75
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Parameter Description Factory setting SCB-10 Min Setp Volt 0-10V (EP034) Minimum voltage for 0-10 V input corresponding to the minimum set point Can be set from 0 V to 10 V 0.5 Max Setp Volt 0-10V (EP035) Maximum voltage for 0-10 V input corresponding to the maximum set point Can be set from 0 V to 10 V 10 9.4.10 Installation Setup > Appliance status > Parameters, counters, signals EP : Entry Parameters = Input parameters Tab.84 Parameters Parameter Description Factory setting SCB-10 Status relay func. (EP018) Status relay function No Action Alarm Alarm Inverted Compressor on Compressor off Reserved Reserved Service request Heat pump in heating mode Heat pump in domestic hot water mode CH pump on Locking or Blocking Locking or Blocking 9.5 Description of the parameters 9.5.1 Running the back-up in heating mode Start-up conditions for the back-up The back-ups are authorised to start up normally except in the case of active back-up relief, limitation linked to bi-valency or hybrid mode operation for example. If the heat pump should also be limited, the back-ups are nevertheless authorised to operate to guarantee heating comfort. The back-ups can also operate where defrosting is necessary to guarantee the safety of the plate heat exchanger, without taking into account temperature values, bivalency and the BL1 and BL2 inputs. Conditions that allow back-up relief: If the BL function (AP001) or BL2 function (AP100) parameters are set to Backup relieved, Gen.&Backup relieved or Photovoltaic HP Only and the corresponding BL input is activated, the back-ups will be deactivated. In heating mode, the back-up is managed by the following parameters: Tab.85 Parameter for heating production Access Parameter Description Default value 23.5 Air Src heat pump > Parameters, counters, signals > Parameters BL function (AP001) BL input function selection Backup relieved Gen.&Backup relieved PV HP And backup BL2 function (AP100) BL2 input function selection. 9 Settings 76 7762758 - v05 - 19082020
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Tab.86 Access Parameter Description Value 23.5 Air Src Heat pump > Parameters, counters, signals > Parameters Delay StartBackup CH (HP030) Delay time for starting the backup energy source for the heating circuits Can be set from 1 to 600 mi nutes. If the Delay StartBackup CH (HP030) parameter is set to 0, the time delay for activating the back-up is set depending on the outdoor temperature. 20 minutes Delay stop backup CH (HP031) Delay time for stopping the backup energy source for the heating circuits 4 minutes (default value) If the Delay StartBackup CH parameter is set to 0, the time delay for activating the back-up is set depending on the outdoor temperature: the lower the outdoor temperature, the quicker the back-up will be activated. t Time (minutes) T Outdoor temperature (°C) 1 Delay Min.Outdoor T. (HP047) 2 Delay Max.Outdoor T (HP048) 3 Min.Outdoor T.backup (HP049) 4 Max.Outdoor T.backup (HP050) Important In this example, with the factory-set parameters, if the outdoor temperature is 10 °C, the back-up will start up 25 minutes after the outdoor unit of the heat pump. Tab.87 Time delay curve parameters for tripping the back-up when Delay StartBackup CH (HP030) is set to 0. Access Parameter Description Value 23.5 Air Src Heat pump > Parameters, counters, signals > Parameters Delay Min.Outdoor T. (HP047) Minimum duration of the time delay for tripping the back-up Can be set from 0 to 60 mi nutes 8 minutes (default value) Delay Max.Outdoor T (HP048) Maximum duration of the time delay for tripping the back-up. Can be set from 0 to 60 mi nutes 30 minutes Min.Outdoor T.backup (HP049) Minimum outdoor temperature for the time delay for tripping the back-up. Can be set from -30 to 0 °C -10 °C Max.Outdoor T.backup (HP050) Maximum outdoor tempera ture for the time delay for trip ping the back-up. Can be set from -30 to +20 °C 15 °C Fig.71 MW-6000377-6 0 -10 -20 20 10 15 10’ 20’ 30’ t (min) T (°C) 4 2 3 1 +10°C 25’ 9 Settings 7762758 - v05 - 19082020 77
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Back-up operation if an error occurs on the outdoor unit In case of an error on the outdoor unit, the electrical back-up starts immediately to guarantee heating comfort. Back-up operation when defrosting the outdoor unit When the outdoor unit is defrosting, the control unit ensures the protection of the system by starting up the back-up if necessary. If the back-up is not sufficient to ensure outdoor unit protection during defrosting, then the outdoor unit is switched off. Operation when the outdoor temperature falls below the operating threshold of the outdoor unit If the outdoor temperature is below the minimum operating temperature of the outdoor unit as defined by the Min. Outdoor T. HP (HP051) parameter, the outdoor unit is not authorised to operate. Tab.88 Access Parameter Description Value 23.5 Air Src Heat pump > Parameters, counters, signals > Adv. Parameters Min. Outdoor T. HP (HP051) Minimum outdoor temperature for the heat pump to shut down. -15 °C for 4.5 kW -15 °C for 6 kW -20 °C for 8 kW 9.5.2 Running the back-up in domestic hot water mode Start-up conditions for the back-up The start-up conditions for the back-up producing domestic hot water are described in the following table. 9 Settings 78 7762758 - v05 - 19082020
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Tab.89 Access Parameter Description Adjustment required 23.5 Air Src Heat pump > Parameters, counters, signals > Adv. Parameters BL function (AP001) BL input function selection The operation of the BL1 blocking input can be set to: Full blocking Partial blocking User reset locking Backup relieved Generator relieved Gen.&Backup relieved High, Low Tariff Photovoltaic HP Only PV HP And backup Smart Grid ready Heating Cooling BL1 contact config. (AP098) BL1 input contact configuration BL1 input contact configuration: Open Closed BL2 contact config. (AP099) BL2 input contact configuration BL2 input contact configuration: Open Closed BL2 function (AP100) BL2 input function selection The operation of the BL2 blocking input can be set to: Full blocking Partial blocking User reset locking Backup relieved Generator relieved Gen.&Backup relieved High, Low Tariff Photovoltaic HP Only PV HP And backup Smart Grid ready Heating Cooling Operating description Tab.90 Behaviour of the electrical back-up Access Parameter Operating description Adjustment required Installation Setup > DHW tank > Parameters, counters, signals > Parameters DHW management (DP051) If set to Economy: the system gives priority to the heat pump during domestic hot water production. Recourse to the electrical back-up is only taken if the Delay StartBackupDHW (DP090) time delay has elapsed in domestic hot water mode, unless hybrid mode is activated. In that case, hybrid logic takes over. ECO (Only HP) If set to Comfort: domestic hot water production mode gives priority to comfort by accelerating domestic hot water production by simultaneously using the heat pump and the electrical back-up. In this mode, there is no maximum time for domestic hot water production as the use of the back-ups helps to ensure domestic hot water comfort more quickly. Comfort (HP+Boiler) Installation Setup > DHW tank > Parameters, counters, signals > Adv. Parameters Delay StartBackupDHW (DP090) Delay time for starting the backup energy source for DHW 90 9 Settings 7762758 - v05 - 19082020 79
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9.5.3 Operation of the switch between heating and production of domestic hot water The system does not allow the simultaneous production of heating and domestic hot water. The switch logic between domestic hot water mode and heating mode operates as follows: Fig.72 MW-5000541-2 1 2 3 4 5 A A C C B T t Cp D Tp 0 A Min. CH before DHW (DP048): Minimum heating duration between two domestic hot water production runs B Max. DHW duration (DP047): Maximum authorised duration for domestic hot water production C Duration for producing domestic hot water (less than DP047) to reach the DHW set point Cp DHW comfort setpoint (DP070): Domestic hot water "Comfort" set point temperature DHW reduced setpoint (DP080): Domestic hot water "Reduced" set point temperature T Temperature Tp DHW tank temp bottom (DM001): Domestic hot water temperature (lower temperature sensor) DHW tank temp top (DM006): Domestic hot water temperature (upper temperature sensor) t Time D Hysteresis DHW (DP120): Set point temperature differential triggering the domestic hot water tank to be charged Tab.91 Phase Operating description 1 Domestic hot water production only. When switching on, if domestic hot water production is authorised and acceleration of domestic hot water production is not required, DHW management ((DP051) config ured as ECO (Only HP)), a domestic hot water production cycle is started up for a maximum duration that can be adjusted and fixed by the Max. DHW duration(DP047) parameter. In the event of insufficient heating comfort, the heat pump is running too long in domestic hot water mode: reduce the maximum duration of domestic hot water production. 2 Heating only. Production of domestic hot water is off. Even if the domestic hot water set point is not reached, a minimum heating period is forced. This period can be adjusted and defined with the Min. CH before DHW parameter (DP048). After the heating period, tank loading is again enabled. 3 Domestic hot water production only. When the domestic hot water set point is reached, a period in heat ing mode begins. 4 Heating only. When the Hysteresis DHW(DP120) differential is reached, domestic hot water production is triggered. If there is not enough domestic hot water (e.g. if the domestic hot water does not heat up quickly enough): reduce the trip differential (hysteresis) by modifying the value of the Hysteresis DHW parame ter (DP120). The DHW tank will then heat up the water more quickly. 5 Domestic hot water production only. 9 Settings 80 7762758 - v05 - 19082020
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Tab.92 Configuration of the domestic hot water Access Parameter Description DHW tank > Parameters, counters, signalsParameters > DHW management (DP051) ECO mode: use of the heat pump only. Comfort mode: use of the heat pump and backup energy sources DHW comfort setpoint (DP070) Comfort temperature setpoint from the Domestic Hot Water tank Hysteresis DHW (DP120) Hysteresis temperature relative to the DHW temperature setpoint DHW reduced setpoint (DP080) Reduced temperature setpoint from the Domestic Hot Water tank Tab.93 Configuration of the duration Access Parameter Description DHW tank > Parameters, counters, signalsParameters > Max. DHW duration (DP047) Maximum duration of the domestic hot water production Min. CH before DHW (DP048) Minimum heating duration between two periods of domestic hot water production Tab.94 Temperatures Access Signal Description DHW tank > Parameters, counters, signalsSignals > DHW tank temp bottom (DM001) Domestic Hot Water tank temperature (bottom sensor) DHW tank temp top (DM006) Domestic Hot Water tank temperature (top sensor) 9 Settings 7762758 - v05 - 19082020 81
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10 Maintenance 10.1 Accessing information on the hardware and software versions Information about the hardware and software versions of the different appliance components is stored in the user interface. To access: 1. Press the key. 2. Select the Version Information menu. 3. Select the component for which you would like to see the version information. Version Information Description Appliance information Information on the indoor unit EHC–05 Information on the main EHC–05 PCB for the heat pump MK3 Information on the user interface SCB-10 Information on the SCB-10 PCB for the heat pump 10.2 Configuring the maintenance message The boiler control panel is used to display a message whenever a service is necessary. To configure the maintenance message: 1. Select the Maintenance icon. 2. Select Service notification. 3. Select the desired type of notification: Type of notification: Description None No maintenance message Custom notification The maintenance message will be displayed after the number of heat pump operating hours defined by the Service hours mains parameter: Hours powered to raise a service notification or after the number of compressor operating hours defined by the Mainte nance hours parameter. 4. With the Custom notification notification type, set the number of operating hours before a maintenance message is sent: Parameter Description Maintenance hours (AP009) Compressor operating hours before a maintenance message is sent Service hours mains (AP011) Operating hours on mains supply before a maintenance message is sent 10.3 Checking operation of the appliance This function is used to force the heat pump and back-up in heating or cooling mode, in order to check that they are working correctly. 1. Press the key. 2. Select Commissioning Menu. 3. Select Load Test. 4. Select the operating mode for which you would like to see the information. Off, Medium power or Control unit Cooling. To test operation in heating mode, it is possible to modify the system set point temperature. To test operating in cooling mode, the minimum set point is 10 °C but this can be set to a higher temperature. It is strongly advised not to leave the system in this operating mode for long periods as the heating circuits (mixing valves, pumps) are not regulated. On On 10 Maintenance 82 7762758 - v05 - 19082020
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10.4 Standard inspection and maintenance operations Caution Only qualified professionals are authorised to carry out maintenance work on the heat pump and the heating system. Caution Before working on the refrigeration circuit, switch off the appliance and wait a few minutes. Certain items of equipment such as the compressor and the pipes can reach temperatures in excess of 100°C and high pressures, which may cause serious injuries. Danger of electric shock Before any work, switch off the mains electricity to the heat pump and the electrical back-up if present. Danger of electric shock Check the discharge from the capacitors of the outdoor unit. An annual inspection with a leak-tightness check in accordance with prevailing standards is obligatory. Maintenance operations are important for the following reasons: To guarantee optimum performance. To extend the life of the equipment. To provide an installation which offers the user optimum comfort over time. Caution Do not drain the installation, except in cases of absolute necessity. E.g.: several months' absence with the risk of temperatures in the building falling below freezing. 10.4.1 Checking the safety components 1. Check that the safety components are operating correctly, particularly the safety valve on the heating circuit. 2. Check the electrical connections. 3. Change any and all parts and cables considered defective. 4. Check all screws and nuts (cover, support, etc.). 5. Change damaged sections of lagging. 10.4.2 Check the hydraulic pressure The hydraulic pressure must be at least 0.8 bar. Recommended pressure: 1.5 to 2 bar. 1. Check the hydraulic pressure in the installation. 2. If the hydraulic pressure is too low, top up the water. 10.4.3 Cleaning the casing 1. Clean the outside of the appliance using a damp cloth and a mild detergent. 10.5 Cleaning the magnetic filter To prevent clogging of the plate heat exchanger, the magnetic filter on the plate heat exchanger inlet must be cleaned every year as part of annual maintenance. If the installation has a flow fault, the filter needs to be fully cleaned. 10 Maintenance 7762758 - v05 - 19082020 83
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10.5.1 Magnetic filter annual maintenance 1. Switch off the appliance and close the valves for the heating circuits on the plate. 2. Remove the magnet from the filter. The magnetic particles stuck inside the filter will drop to the bottom and be ejected via the drain. 3. Connect a pipe to the filter valve, then open the valve by a quarter turn. 4. Once the water running out of the pipe is clear, re-close the valve. If necessary, open and close the valve several times to create surges, and clean the filter better. 5. Refit the magnet. Pushing it in fully. Fig.73 2 MW-1001305-1 Fig.74 3 MW-1001306-1 Fig.75 4 MW-1001307-1 Fig.76 5 MW-1001308-1 10 Maintenance 84 7762758 - v05 - 19082020
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6. Check the pressure in the installation. If the pressure is less than 1.5 bar, top up the water. 7. Open the valves on the connection plate. 8. Power the appliance back on. 9. Check the pressure in the installation. If the pressure is less than 1.5 bar, top up the water. 10. Activate the heating and check the flow rate in the installation. If the flow rate is too low, clean the filter fully. 10.5.2 Full cleaning of the magnetic filter If the flow rate in the installation is too low, fully clean the magnetic filter. This operation requires the appliance to be fully drained. 1. Power off the appliance. 2. Isolate the appliance from the water supply. 3. Drain the appliance: connect a drain pipe to the filter nipple, then open the valve on the filter tap by a quarter turn. 4. Once water stops running out of the pipe, close the valve on the filter. 5. Unscrew the sludge container using the handling tool provide in the accessories bag. Fig.77 MW-1001309-02 1.5 6 Fig.78 3 MW-1001310-1 Fig.79 4 MW-1001311-1 Fig.80 5 MW-1001312-1 10 Maintenance 7762758 - v05 - 19082020 85
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6. Disassemble the different parts of the mud pot. The magnetic particles stuck inside the filter body will drop to the bottom. 7. Clean the various parts with clean water. 8. Refit the sludge collector. Caution Risk of breakage. Observe the keyway of the plastic part: align the notch with the pin. Replace the seal if necessary. Check that the seal is correctly positioned before tightening with the key (supplied with the indoor unit). 9. Open the stop valves and reactivate the water supply to the appliance. 10. Re-commission the appliance. Fig.81 6 MW-1001313-1 Fig.82 7 MW-1001314-1 Fig.83 8 MW-1001315-2 10 Maintenance 86 7762758 - v05 - 19082020
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10.6 Specific maintenance operations 10.6.1 Draining the heating circuit 1. Connect a hose (internal diameter: 8 mm) to the drain valve on the heating circuit. 2. Open the drain valve. 3. Await the complete drainage of the heating circuit. 10.6.2 Replacing the battery in the control panel If the indoor module is switched off, the control panel battery takes over to keep the correct time. The battery must be replaced when the time is no longer saved. 1. Remove the front panel by pulling firmly upwards. 2. Tilt the control panel support forwards. Important Keep a good hold of the control panel bracket in order not to pull out or disconnect the electrical connections in the control panel. 3. Remove the battery located in back plate of the control panel by pushing it gently forwards. 4. Insert a new battery. Important Battery type: CR2032, 3V Do not use rechargeable batteries Do not discard used batteries in the dustbin. Take them to an appropriate collection place. 5. Re-assemble everything. Fig.84 MW-1001274-1 1 2 Fig.85 MW-5000165-1 10 Maintenance 7762758 - v05 - 19082020 87
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11 Troubleshooting 11.1 Resetting the safety thermostat Danger Before carrying out any work on the indoor unit, cut off its power supply and the electrical back-up immersion heater. If you suspect that the safety thermostat was triggered: 1. Cut off the power supply to the indoor unit and the electrical back-up immersion heaters by lowering the circuit breakers on the electric panel. 2. Locate and correct the cause of power cut before resetting the safety thermostat. 3. Remove the front panel of the indoor unit and the protective cap. 4. If the safety thermostat has been triggered, use a flat-headed screwdriver to press the reset button on the thermostat. If not, look for an alternative cause for the power to the immersion heater having been cut. 5. Refit the front panel on the indoor unit and the protective cover. 6. Switch the mains supply to the indoor unit and the electrical back-up immersion heater back on. 11.2 Resolving operating errors If your appliance malfunctions, the status LED flashes and/or changes colour and a message containing an error code is displayed on the main screen of the control panel. This error code is important for the correct and rapid diagnosis of the type of malfunction and for any technical assistance that may be needed. If an error occurs: 1. Make a note of the code displayed on the screen. 2. Remedy the problem described by the error code or contact the installer. 3. Switch the heat pump off and back on to check that the cause of the error has been removed. 4. If the code is displayed again, contact the installer. 11.2.1 Types of error code The control panel can display three types of error codes: Tab.95 Type of code Code format Colour of the status LED Warning Axx.xx Green flashing Blockage Hxx.xx Continuous red Lock out Exx.xx Red flashing 11.2.2 Error codes An error code is a temporary status, resulting from the detection of a heat pump anomaly. The heat pump attempts to restart automatically until it switches on. When one of the following codes is displayed and the heat pump cannot restart automatically, contact a maintenance technician. Fig.86 MW-2000257-5 11 Troubleshooting 88 7762758 - v05 - 19082020
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Tab.96 List of temporary error codes Error code Message Description H00.17 DHW sensor Closed Domestic Hot Water tank temperature sensor is either shorted or measures a temperature above range Check the wiring between the central unit PCB and the sensor. Check that the sensor has been fitted properly. Check the Ohmic value of the sensor. Replace the sensor if necessary. H00.32 TOutside Open Outside temperature sensor is either removed or measures a temperature below range Check the wiring between the central unit PCB and the sensor. Check that the sensor has been fitted properly. Check the Ohmic value of the sensor. Replace the sensor if necessary. The outdoor temperature sensor must always be connected to the EHC–05 PCB. If you have mistakenly connected the outdoor temperature sensor to the SCB-10 PCB, you must reset the factory settings for the CN1 and CN2 parameters. H00.33 TOutside Closed Outside temperature sensor is either shorted or measures a temperature above range Check the wiring between the central unit PCB and the sensor. Check that the sensor has been fitted properly. Check the Ohmic value of the sensor. Replace the sensor if necessary. H00.34 TOutside Missing Outside temperature sensor was expected but not detected Check the wiring between the EHC–05 central unit PCB and the sensor. Check that the outdoor temperature sensor is connected to the EHC–05 PCB. Check that the sensor has been fitted properly. Check the Ohmic value of the sensor. Replace the sensor if necessary. Activate automatic detection of all the options and accessories. Reset the factory settings for the CN1 and CN2 parameters. Important This solution also resets all the other parameters. H00.47 HP flow sensor removed or below range Heat pump flow temperature sensor is either removed or measures a temperature below range Check the wiring between the central unit PCB and the sensor. Check that the sensor has been fitted properly. Check the Ohmic value of the sensor. Replace the sensor if necessary. H00.48 THp Flow Closed Heat pump flow temperature sensor is either shorted or measures a temperature above range Check the wiring between the central unit PCB and the sensor. Check that the sensor has been fitted properly. Check the Ohmic value of the sensor. Replace the sensor if necessary. H00.49 THp Flow Missing Heat pump flow temperature sensor was expected but not detected Check the wiring between the central unit PCB and the sensor. Check that the sensor has been fitted properly. Check the Ohmic value of the sensor. Replace the sensor if necessary. H00.51 THp Return Open Heat pump return temperature sensor is either removed or measures a temperature below range H00.52 THp Return Closed Heat pump return temperature sensor is either shorted or measures a temperature above range Check the wiring between the central unit PCB and the sensor. Check that the sensor has been fitted properly. Check the Ohmic value of the sensor. Replace the sensor if necessary. 11 Troubleshooting 7762758 - v05 - 19082020 89
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Error code Message Description H00.57 T DHW Top Open Domestic Hot Water top temperature sensor is either removed or measures a temperature below range Check the wiring between the central unit PCB and the sensor. Check that the sensor has been fitted properly. Check the Ohmic value of the sensor. Replace the sensor if necessary. H00.58 T DHW Top Closed Domestic Hot Water top temperature sensor is either shorted or measures a temperature above range Check the wiring between the central unit PCB and the sensor. Check that the sensor has been fitted properly. Check the Ohmic value of the sensor. Replace the sensor if necessary. H02.02 Wait Config Number Waiting For Configuration Number Waiting for configuration parameters to be entered Configure CN1 / CN2 depending on the output of the outdoor unit installed (CNF menu). Central unit PCB replaced: heat pump not configured H02.03 Conf Error Configuration Error The configuration parameters entered are incorrect. Configure CN1 / CN2 depending on the output of the outdoor unit installed (CNF menu). H02.04 Parameter Error Parameter Error Restore the factory settings. If the error is still present: change the central unit PCB. PCB settings cannot be read Configure CN1 / CN2 depending on the output of the outdoor unit installed (CNF menu). Check the correct parameter settings. H02.05 CSU CU mismatch CSU does not match CU type Software change (software number or version parameter inconsistent with the mem ory). H02.07 Water Press Error Water Pressure Error active Check the hydraulic pressure in the heating circuit. Check the wiring between the central unit PCB and the pressure sensor. Check the connection of the pressure sensor. H02.09 Partial block Partial blocking of the device recognized BL input on the central unit PCB terminal block open Check the contact on the BL input. Check the wiring. Check the AP001 and AP100. parameters. H02.10 Full Block Full blocking of the device recognized BL input on the central unit PCB terminal block open Check the contact on the BL. input. Check the wiring. Check the AP001 and AP100. parameters. 11 Troubleshooting 90 7762758 - v05 - 19082020
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Error code Message Description H02.23 System flow error System water flow error active Flow problem Insufficient flow: open a radiator valve. The circuit is clogged: Check that the filters are not obstructed and clean them if necessary. Clean and flush the installation, No circulation: Check that the valves and thermostatic valves are open, Check that the circulating pump is working, Check the wiring, Check the pump supply: if the pump does not work, replace it. Too much air: completely vent the indoor unit and the installation for optimum running. Incorrect wiring: check the electrical connections. Flow meter: Check the electrical connections and the direction of the flow meter (arrow to the right). Replace the flow meter if necessary H02.25 ACI error Titan Active System short circuited or on an open circuit Check the connection cable. Check that the anode has not short-circuited and is not broken. H02.36 Funct device lost Functional device has been disconnected No communication between the central unit PCB and the additional circuit PCB Check the connection of the supply cable between the PCBs. Check the connection of the BUS cable between the PCBs. Run automatic detection. H02.37 Uncritic device lost Uncritical device has been disconnected No communication between the central unit PCB and the additional circuit PCB Check the connection of the supply cable between the PCBs. Check the connection of the BUS cable and the PCBs. Run automatic detection. H02.60 Unsupported function The zone doesn't support the selected function H06.01 HP Unit Failure Heat Pump Unit Failure occured Heat pump outdoor unit fault Check the wiring between the central unit PCB and the communication bus on the outdoor unit. Check the connection of the communication cable between the central unit PCB and the interface PCB. Check the connection of the supply cable between the central unit PCB and the in terface PCB. Check the connection of the outdoor unit supply cable. 11.2.3 SCB-10 error codes An error code is a temporary status, resulting from the detection of a heat pump anomaly. The control panel attempts automatic restart of the heat pump until it switches on. Tab.97 Code Display text Description H00.69 TbufferTankOpen Buffer Tank temperature sensor is either removed or measures a temperature below range H00.70 TbufferTankClosed Buffer Tank temperature sensor is either shorted or measures a temperature above range H00.71 TbufferTankTopOpen Buffer Tank top temperature sensor is either removed or measures a temperature below range 11 Troubleshooting 7762758 - v05 - 19082020 91
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Code Display text Description H00.72 TbufferTankTopClosed Buffer Tank top temperature sensor is either shorted or measures a temperature above range H00.74 TBufferTankMissing Buffer Tank temperature sensor was expected but not detected H00.75 TBufferTankTop Miss Buffer Tank Top temperature sensor was expected but not detected H00.76 TcascadeFlow Open Cascade Flow temperature sensor is either removed or measures a temperature below range H00.77 TcascadeFlow Closed Cascade Flow temperature sensor is either shorted or measures a temperature above range H00.78 TcascadeFlow missing Cascade Flow temperature sensor was expected but not detected H02.02 Wait Config Number Waiting For Configuration Number H02.03 Conf Error Configuration Error H02.04 Parameter Error Parameter Error H02.05 CSU CU mismatch CSU does not match CU type H02.16 Int CSU Timeout Internal CSU Timeout H02.36 Funct device lost Functional device has been disconnected H02.40 Function unavailable Function unavailable H02.45 Full Can Conn Matrix Full Can Connection Matrix H02.46 Full Can Device Adm Full Can Device Administration H02.47 Failed Conn Funct Gr Failed Connecting Function Groups H02.48 Funct Gr Conf Fault Function Group Configuration Fault H02.49 Failed Init Node Failed Initialising Node H02.55 Inval or miss SerNR Invalid or missing device serial number H02.61 Unsupported function Zone A doesn't support the selected function H02.62 Unsupported function Zone B doesn't support the selected function H02.63 Unsupported function Zone C doesn't support the selected function H02.64 Unsupported function Zone D doesn't support the selected function H02.65 Unsupported function Zone E doesn't support the selected function H02.66 TAS not connected The anti corrosion protection (TAS) of the Domestic Hot Water tank is not connected H02.67 TAS short-circuit The anti corrosion protection (TAS) of the Domestic Hot Water tank is shortend H10.00 T Flow Zone A Open Flow temperature sensor Zone A Open H10.01 T Flow Zone A Closed Flow temperature sensor Zone A Closed H10.02 T Dhw Zone A Open Domestic Hot Water temperature sensor Zone A Open H10.03 T Dhw Zone A Closed Domestic Hot Water temperature sensor Zone A Closed H10.04 TSwimmPoolZoneA Open Swimming Pool Temperature Sensor Zone A Open H10.05 TSwimmPoolZoneAClose Swimming Pool Temperature Sensor Zone A Closed H10.09 T Flow Zone B Open Flow temperature sensor Zone B Open H10.10 T Flow Zone B Closed Flow temperature sensor Zone B Closed H10.11 T Dhw Zone B Open Domestic Hot Water Temperature Sensor Zone B Open H10.12 T Dhw Zone B Closed Domestic Hot Water temperature sensor Zone B Closed H10.13 TSwimmPoolZoneB Open Swimming Pool Temperature Sensor Zone B Open H10.14 TSwimmPoolZoneBClose Swimming Pool Temperature Sensor Zone B Closed H10.18 T Flow Zone C Open Flow temperature sensor Zone C Open H10.19 T Flow Zone C Closed Flow temperature sensor Zone C Closed H10.20 T Dhw Zone C Open Domestic Hot Water Temperature Sensor Zone C Open H10.21 T Dhw Zone C Closed Domestic Hot Water temperature sensor Zone C Closed H10.22 TSwimmPoolZoneC Open Swimming Pool Temperature Sensor Zone C Open H10.23 TSwimmPoolZoneCClose Swimming Pool Temperature Sensor Zone C Closed H10.27 T Flow Zone DHW open Flow temperature sensor Zone DHW open H10.28 Sens. ZoneDHW closed Flow temperature sensor Zone DHW closed 11 Troubleshooting 92 7762758 - v05 - 19082020
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Code Display text Description H10.29 Sensor Zone DHW open Temperature sensor Zone DHW open H10.30 T Zone DHW closed Domestic Hot Water temperature sensor Zone DHW closed H10.36 Sensor Zone AUX open Flow temperature sensor Zone AUX open H10.37 Sens. ZoneAUX closed Flow temperature sensor ZoneAUX closed H10.38 T Dhw Zone AUX open Domestic Hot Water temperature sensor Zone AUX open H10.39 Sens. ZoneAUX Closed Domestic Hot Water temperature sensor Zone AUX closed 11.2.4 Fault codes If a fault code is still present after several automatic start-up attempts, the heat pump switches to error mode. The heat pump will only resume normal operation once the causes of the fault have been eliminated by the installer. As a result of: a manual reset, a maintenance message reset. Tab.98 List of fault codes Error code Message Description E00.00 TFlow Open Flow temperature sensor is either removed or measures a temperature below range E00.01 TFlow Closed Flow temperature sensor is either shorted or measures a temperature above range E02.13 Blocking Input Blocking Input of the Control Unit from device external environment Input BL open. Check the wiring. Check the component connected to the BL. contact Check the component connected to the AP001 and AP100. contact E02.24 System flow locking System water flow locking active Insufficient flow: open a radiator valve The circuit is clogged: Check that the filters are not obstructed and clean them if necessary. Clean and flush the installation. No circulation: Check that the valves and thermostatic valves are open. Check that the filters are not obstructed. Check that the circulating pump is working. Check the wiring. Check the pump supply: if the pump does not work, replace it. Too much air Completely vent the indoor module and the installation for optimum running. Check that the automatic air vents are properly open (also check the hydroblock). Incorrect wiring: check the electrical connections. Flow meter: Check the electrical connections and the direction of the flow meter (arrow to the right). Replace the flow meter if necessary. 11.2.5 EHC–05 alarm codes An alarm code is a temporary heat pump status, resulting from the detection of an anomaly. If an alarm code still remains after several automatic start-up attempts, the system goes into fault mode. 11 Troubleshooting 7762758 - v05 - 19082020 93
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Tab.99 List of alarm codes Error code Message Description A02.06 Water Press Warning Water Pressure Warning active A02.18 OBD Error Object Dictionary Error A02.22 System flow warning System water flow warning active A02.55 Inval or miss SerNR Invalid or missing device serial number A02.80 Missing Cascade Ctrl Missing Cascade controller 11.2.6 SCB-10 alarm codes An alarm code is a temporary heat pump status, resulting from the detection of an anomaly. If an alarm code still remains after several automatic start-up attempts, the system goes into fault mode. Tab.100 Code Display text Description A00.32 TOutside Open Outside temperature sensor is either removed or measures a temperature below range A00.33 TOutside Closed Outside temperature sensor is either shorted or measures a temperature above range A00.34 TOutside Missing Outside temperature sensor was expected but not detected A02.18 OBD Error Object Dictionary Error: Reset and A02.37 Uncritic device lost Uncritical device has been disconnected: Bad connection: check the wiring and connectors. Faulty SCB PCB: replace SCB PCB A10.45 RoomTempZoneA miss Measure of Room Temperature Zone A is missing A10.46 RoomTempZoneB miss Measure of Room Temperature Zone B is missing A10.47 RoomTempZoneC miss Measure of Room Temperature Zone C is missing A10.50 T_DHW top D miss Domestic Hot Water temperature sensor top zone DHW is missing A10.54 Temp. Zone DHW miss. Temperature sensor Zone DHW is missing A10.56 T_DHW Zone AUX miss Domestic Hot Water temperature sensor Zone AUX is missing 11.3 Displaying and clearing the error memory The error memory stores the 32 most recent errors. You can check the details of each error and then clear it from the error memory. To display and clear the error memory: 1. Press the key. 2. Select Error History. The list of the 32 most recent errors is displayed with the error code, a short description and the date. 3. Carry out the following actions according to your needs: Show the details of an error: select the desired error. To clear the error memory, press and hold the rotary knob. On 11 Troubleshooting 94 7762758 - v05 - 19082020
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12 Decommissioning and disposal 12.1 Decommissioning procedure To decommission the heat pump temporarily or permanently: 1. Switch off the heat pump. 2. Shut off the electrical power supply to the heat pump: outdoor unit and indoor module. 3. Shut off the supply to the electrical back-up if an electrical back-up is present. 4. Drain the central heating system. 12.2 Disposal and recycling Warning Removal and disposal of the heat pump must be carried out by a qualified professional in accordance with prevailing local and national regulations. 1. Switch off the heat pump. 2. Cut the mains supply to the heat pump. 3. Recover the refrigerant in accordance with prevailing regulations. Important Do not allow the refrigerant to escape into the atmosphere. 4. Disconnect the refrigerant connections. 5. Close the water mains. 6. Drain the installation. 7. Dismantle all hydraulic connections. 8. Dismantle the heat pump. 9. Scrap or recycle the heat pump in accordance with prevailing local and national regulations. Fig.87 MW-3000179-03 12 Decommissioning and disposal 7762758 - v05 - 19082020 95
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13 Spare parts 13.1 General If inspection or maintenance work reveals the need to replace a heat pump component, use only recommended spare parts and equipment. Caution Only genuine spare parts may be used. Important To order a spare part, give the reference number shown on the list. 13.2 Indoor unit 13.2.1 Casing Fig.88 MW-3000616-3 2 6 8 14 13 5 7 3 1 9 10 11 12 Tab.101 Markers Reference Description 1 300025324 Assembled casing 2 300025281 Casing bottom 3 55125 Pipe feed 4 55125 Pipe feed for electrical back-up 5 7666862 Tank blocking plate 6 200020022 Blocking piece for control panel 7 300027772 Casing cross-bar support 8 300025063 Diaphragm cable grommet, dg-pvc 21/e1 9 7683389 Front panel 10 49826 Silicon leak-tightness profile 9 x 7.4 11 S101403 Quarter-turn screw 12 117010 Retaining ring 13 Spare parts 96 7762758 - v05 - 19082020
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Markers Reference Description 13 7693224 Earth wire, length 1000 mm 14 7665153 Earthing connection nut 13.2.2 Control system Fig.89 Control panel MW-3000611-2 42 19 38 37 39 39 18 4 36 7 35 5 3 11 21 10 20 8 6 2 1 9 17 16 15 14 Tab.102 List of spare parts for the control panel Marker Reference Description 1 S100860 SCU casing 2 7704493 SCB-10 PCB 3 7632096 White 2-pin connector 4 7632095 Green 2-pin connector 5 300009102 4-pin telephone relay connector 6 300009081 5-pin connector TS + Pump B + bridge 7 S100869 SCU gasket 8 S100862 SCU grommet (5x) 9 7684855 EHC–05 central unit PCB 10 300020012 Clip-on interface PCB holder series 100-0 11 7653678 HPC–01 interface PCB 14 200009965 2-point BL connector (orange) 15 7685026 rast5 4-pin connector, three-way valve 16 7638205 LUMB 361102f07k13m08 connector 17 300008957 2-pin DHW sensor connector 18 7609871 Pt1000 temperature sensor 19 95320950 Cable clamp 20 7688781 Painted card support 21 7688785 Painted panel cover 35 300020013 Clip-on interface PCB holder series 100-2 13 Spare parts 7762758 - v05 - 19082020 97
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Marker Reference Description 36 7681470 Oblong grommet membrane 37 7695390 MK3 display for heat pump 38 7676020 Control panel 39 115525 Cord for control panel 42 7675263 Grey complete On/Off switch Fig.90 PCBs MW-1001291-2 7705849 7673502 7673502 7744748 7750990 7750947 4 2 3 12 8 9 7 1 11 10 5 6 Tab.103 List of spare parts for the PCBs Marker Reference Description 1 7673746 EHC power supply harness 2 7744748 700 mm L-BUS cable 3 7680005 PC operating harness 4 7680047 Sensor harness 5 7680155 S2-S3 cable 6 7680130 EHC-HPC harness 7 7680294 Earth wire 8 7750990 Liquid sensor 9 7750947 Heating sensor 10 7705849 Harness 11 7680120 EHC power supply harness - CH pump 12 7673502 EHC harness, electrical back-up 13 7733655 GTW-30 PCB 13 Spare parts 98 7762758 - v05 - 19082020
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13.2.3 Other components Fig.91 MW-1001317-2 81 22 82 83 17 21 20 19 18 38 31 84 2 29 16 62 7 26 31 5 31 12 15 33 33 40 1 43 44 75 78 79 65 61 60 58 60 64 45 56 35 31 63 38 70 42 69 11 73 53 31 51 3 30 32 37 9 36 36 33 33 2 26 30 6 25 28 28 28 28 30 59 57 41 4 27 34 14 29 13 80 35 10 39 26 30 8 52 63 67 71 66 72 74 23 76 38 24 14 77 38 31 31 31 28 35 47 46 28 47 46 28 49 48 16 62 26 Tab.104 Markers Reference Description 1 300025284 Tank unit 2 300025388 Quick-connection T-shaped piece 13 Spare parts 7762758 - v05 - 19082020 99
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Markers Reference Description 3 300025387 T-shaped safety valve 4 200022010 3.5 bar safety valve 5 7674063 Heating flow pipe, tank 6 7709960 Eltek pressure gauge 7 7674060 Heating return pipe 8 300025325 Quick-release T connection plug 9 300025392 DN8 flexible hose, l450 10 300025395 9510-762 expansion vessel 11 0295174 Drain valve 1/4" 12 300025257 Heating flow pipe, three-way valve 13 300003563 PVC pipe, D20x16 14 300023286 Bulb blocking pin 15 7657318 Y.P.RS15/7.5 RKA 130 9 circulating pump 16 94918138 Automatic air vent 17 7705608 Plate heat exchanger tube, tank 18 300025396 Huba detector head 19 300025363 Wave spring, CS112 l2 0 189 20 300025329 Flow detector nut 21 7697417 Complete magnetic filter 22 7715767 Filter 23 7672888 Circulating pump tube, heating 24 7657259 Circulating pump Y. P. RS15/7.5 PWM 130 12 25 7700519 Pressure gauge protection cap 26 300023113 Pin for DN20 27 116552 Pin clip 20 28 300025361 Spacer clip 29 95013063 Fibre washer, d.38 x 27 x 2 30 95023311 21x3.5 O-ring 31 95013062 Green gasket 30x21x2 32 95023308 O-ring 9.19x2.62 EPDM 33 300025285 Spacer, dia. 22 34 300025444 Hose fastener 35 95890434 Serrated thibloc HM8 nut 36 110865 Tank support bracket 37 300024235 Blocking pin, dia. 10 38 95013064 Green gasket 44x32x2 39 95013058 14x8x2 gasket 40 7681504 Pump insulation 41 300027359 Insulation for T-shaped piece 42 7695163 Screw bag 43 200019610 Plate heat exchanger for 4-8 kW 46 300025290 Spacer, dia 3/8" for 4-16 kW 47 300025291 Spacer, dia 5/8" for 4-16 kW 51 300025235 Return pipe, hydraulic back-up 52 300025237 Flow pipe, hydraulic back-up 53 300025244 Circulating pump pipe, tank 57 95362450 AF60 outdoor temperature sensor 58 7687503 Pipe kit with pressure gauge connector, dia. 22 59 95365106 3 bar axial pressure gauge, dia. 40 60 95013069 22x30x2 green gasket 61 7665153 Earthing connection nut for 4-8 kW 62 55125 Grommet, dia. 60 31/42 thickness 1 mm 13 Spare parts 100 7762758 - v05 - 19082020
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Markers Reference Description 63 94950198 Brass plug G1" female 64 300025231 Preheater pipe, tank 65 300025332 12 kW preheater 66 300025400 Male-female hexagonal spacer 67 7676000 Electrical back-up support 69 7679295 Terminal connection block, immersion heater 70 96568001 Finder relay, 220 V 30 A 71 200018815 COTHERM BSDP 0002 thermostat and syringe kit 72 95320950 Cable clamp 73 95770690 Sim cb screw, 3.94x9.5 74 300024354 Cable clamp to clip 75 300027995 Preheater pipe insulation 1, tank 76 300027996 Preheater pipe insulation 2, tank 77 300025263 Circulating pump pipe, preheater 78 300025397 O-ring, dia. 34x4 79 300025423 Pin, dia. 35 80 7693269 Electrical back-up cover 81 7715766 Gasket 82 7715768 Plastic insert 83 7715769 Magnet + O-ring 84 7706481 Maintenance key 13 Spare parts 7762758 - v05 - 19082020 101
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13.3 Outdoor unit 13.3.1 AWHP 4.5 MR Fig.92 24 23 18 14 17 15 13 16 31 32 29 30 22 28 27 26 25 21 20 32 1 2 3 4 5 6 7 19 MW-1000573-2 12 9 Tab.105 Marker Reference Description 1 7652649 Top panel 2 7652667 Coil (evaporator/condenser) 3 7652668 Fan motor 4 7652669 Fan rotor 5 7652670 Grip 6 7652671 Front panel 7 7652672 Fan grate 9 7652673 Base frame 12 7652674 Compressor anti-vibration mount kit 13 7652675 SNB130FGBMT compressor 14 7652676 1/2" stop valve (gas) Ø 12.7 mm 15 7652677 1/4" stop valve (hydraulic) Ø 6.35 mm 16 7652678 Expansion valve 17 7652679 LEV expansion valve coil 18 7652680 21S4 solenoid valve coil 19 7652681 4-way valve 20 7652682 Stop valve access panel 21 7652684 Electrical supply access panel 13 Spare parts 102 7762758 - v05 - 19082020
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Marker Reference Description 22 7652685 Sensor support 23 7652686 RT65 outdoor temperature sensor 24 7652687 RT68 coil temperature sensor 25 7652688 RT61–RT62 sensor kit 26 7652690 Fuse holder 27 7652691 T20AL / 250 V fuse 28 7652692 Supply terminal 29 7652693 Central unit PCB 30 7652694 Side panel, right 31 7652695 L61 coil 32 7652696 Rear protection grid 33 7652697 Fan motor support 7652698 Capillary tubes (100) Ø 4 mm x Ø 2.4 mm 7652699 Condensate discharge 13.3.2 AWHP 6 MR-3 Fig.93 Base frame 9 10 7 8 1 2 6 5 3 4 MW-1000875-2 Tab.106 Marker Reference Description 1 7673303 Fan grate 2 7673305 Front panel 3 7673306 Base panel 4 7673313 Cable duct 5 7673307 Maintenance access panel 13 Spare parts 7762758 - v05 - 19082020 103
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Marker Reference Description 6 7673308 Hatch 7 7673309 Rear protection grid 8 7673310 Side panel, right 9 7673311 Motor bracket 10 7673312 Top panel Fig.94 Electric part 4 11 1 2 3 5 29 30 6 7 8 9 10 12 13 14 15 16 21 23 24 25 27 26 17 18 20 19 28 MW-1000874-1 13 Spare parts 104 7762758 - v05 - 19082020
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Tab.107 Marker Reference Description 1 7673314 Fan motor 2 7673315 Fan rotor 3 7604150 Nut 4 7673316 Self ACL 5 7673317 TH4–TH34 temperature sensor 6 7673318 SNB130FTCM2 compressor 7 7673319 Power receiver 8 7673320 CPLT 1/4 F - 1/2 F stop valves 9 7673321 LEV-B coil 10 7673322 LEV-A coil 11 7673323 TH3 temperature sensor 12 7673324 CPLT LEV-B expansion valve 13 7673325 CPLT LEV-A expansion valve 14 300018092 Load plug 15 300023668 4-way valve 16 7673326 TH6-7 temperature sensor 17 7673327 Coil (evaporator/condenser) 18 7673328 21S4 4-way valve coil 19 7673329 HP pressure switch sensor 20 300018123 41.5-bar HP pressure switch 21 300023673 Connection terminal block 23 7673330 Cover 24 7673331 Support 25 7673332 Central unit PCB 26 7673333 Relay card 27 7673334 Radiator support 28 7673335 TH8 radiator sensor 29 7673336 Compressor top insulation 30 7673337 Compressor insulation 0 7673338 10 A / 250 V fuse 0 7673339 3,15 A / 250 V fuse 0 7673340 Compressor cable harness 13 Spare parts 7762758 - v05 - 19082020 105
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13.3.3 AWHP 8 MR-2 Fig.95 AWHP 8 MR-2: base frame MW-2000061-1 1 2 3 4 5 6 8 7 10 11 12 13 9 7 14 Tab.108 Marker Reference Description Model 1 7614219 Side panel, left 2 7614220 Fan grid 3 7614221 Front panel 4 7614222 Base panel SERVICE REF. : AWHP 8 MR-2 4 7705552 Base panel SERVICE REF. : AWHP 8 MR-2 R2.UK 5 7614223 Motor bracket SERVICE REF. : AWHP 8 MR-2 5 7705553 Motor bracket SERVICE REF. : AWHP 8 MR-2 R2.UK 6 7614224 Valve bracket 7 7614225 Grip 8 7614226 Lower front panel 9 7614227 Lower rear panel 10 7614228 Side panel, right SERVICE REF. : AWHP 8 MR-2 10 7705557 Side panel, right SERVICE REF. : AWHP 8 MR-2 R2.UK 11 7614230 Maintenance access panel 12 7614231 Rear protection grate 13 7614232 Top panel 14 7614233 Grip 13 Spare parts 106 7762758 - v05 - 19082020
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Fig.96 AWHP 8 MR-2: electric part MW-2000062-1 Tab.109 Marker Reference Description Model 1 7614234 Fan motor SERVICE REF. : AWHP 8 MR-2 1 7705558 Fan motor SERVICE REF. : AWHP 8 MR-2 R2.UK 2 7614236 Fan 3 7614237 Nut 4 7614238 Battery (evaporator/condenser) 5 7614239 High pressure pressure switch 6 7614240 Compressor TNB220FLHMT SERVICE REF. : AWHP 8 MR-2 6 7652256 Compressor SNB220FAGMC L1 SERVICE REF. : AWHP 8 MR-2 R1.UK + SERVICE REF. : AWHP 8 MR-2 R2.UK 7 7614241 TH34 compressor discharge temperature sensor 8 7614242 Anti-vibration stud SERVICE REF. : AWHP 8 MR-2 8 7705559 Anti-vibration stud SERVICE REF. : AWHP 8 MR-2 R2.UK 9 7614243 Load plug 10 7614244 Stop valve 3/8" 13 Spare parts 7762758 - v05 - 19082020 107
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Marker Reference Description Model 11 7614245 Stop valve 5/8" 12 7614246 Output reserve header 13 7614247 Filter 14 7614248 High pressure sensor 15 7614250 Expansion valve 16 7614251 Linear expansion valve coil 17 7614252 Linear expansion valve coil 18 7614253 Outside sensor battery TH6/7 19 7614254 4-way valve 20 7614255 Coil SERVICE REF. : AWHP 8 MR-2 20 7705561 Coil 21S4 SERVICE REF. : AWHP 8 MR-2 R2.UK 21 7614278 Terminal block SERVICE REF. : AWHP 8 MR-2 21 7705562 Terminal block SERVICE REF. : AWHP 8 MR-2 R2.UK 22 7614279 Control panel 23 7614280 Self (DCL) SERVICE REF. : AWHP 8 MR-2 23 7705563 Self 18 MH SERVICE REF. : AWHP 8 MR-2 R2.UK 24 7614282 EMI-suppressor filter 25 7614283 Dissipator sensor TH8 SERVICE REF. : AWHP 8 MR-2 25 7705564 Dissipator sensor TH8 SERVICE REF. : AWHP 8 MR-2 R2.UK 26 7614284 Output PCB SERVICE REF. : AWHP 8 MR-2 26 7652259 Output PCB SERVICE REF. : AWHP 8 MR-2 R1.UK + SERVICE REF. : AWHP 8 MR-2 R2.UK 27 7614285 Central unit PCB SERVICE REF. : AWHP 8 MR-2 27 7652258 Central unit PCB SERVICE REF. : AWHP 8 MR-2 R1.UK + SERVICE REF. : AWHP 8 MR-2 R2.UK 0 7614286 Gas sensor TH4 0 7614288 Liquid sensor TH3 0 7705560 Silencer SERVICE REF. : AWHP 8 MR-2 R2.UK 13 Spare parts 108 7762758 - v05 - 19082020
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14 Reference 14 Reference 7762758 - v05 - 19082020 109
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© Heating and Hotwater Industry Council (HHIC) www.hhic.org.uk * All installations in England and Wales must be notified to Local Authority Building Control (LABC) either directly or through a Competent Persons Scheme. A Building Regulations Compliance Certificate will then be issued to the customer. Issue date: 13.08.2020 www.hhic.co.uk Benchmark Commissioning & Warranty Validation Service Record It is a requirement that the heat pump is installed and commissioned to the manufacturers’ instructions and the data fields on the commissioning checklist completed in full. To instigate the warranty the heat pump needs to be registered with the manufacturer within one month of the installation. The warranty rests with the end-user (consumer), and they should be made aware it is ultimately their responsibility to register with the manufacturer, within the allotted time period. It is essential that the heat pump is serviced in line with the manufacturers’ recommendations, at least annually. This must be carried out by a competent, certified operative. The service details should be recorded on the Benchmark Service and Interim Heat Pump Work Record and left with the householder. Failure to comply with the manufacturers’ servicing instructions and requirements will invalidate the warranty. This Commissioning Checklist is to be completed in full by the competent person who commissioned the heat pump and associated equipment as a means of demonstrating compliance with the appropriate Building Regulations and then handed to the customer to keep for future reference. Failure to install and commission according to the manufacturers’ instructions and complete this Benchmark Commissioning Checklist will invalidate the warranty. This does not affect the customer’s statutory rights.
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© Heating and Hotwater Industry Council (HHIC) www.hhic.org.uk * All installations in England and Wales must be notified to Local Authority Building Control (LABC) either directly or through a Competent Persons Scheme. A Building Regulations Compliance Certificate will then be issued to the customer. Issue date: 13.08.2020 AIR TO WATER HEAT PUMP COMMISSIONING CHECKLIST Address: Heat Pump make and model: Heat Pump serial number: Commissioned by (PRINT NAME): Certified Operative Reg number (1): Company name: Telephone number: Company email: Company address: Commissioning date: Heating and hot water system complies with the appropriate Building Regulations? Yes DNO notification? Yes Heating zone valves (including underfloor loops) pre-existing Fitted Not required Hot water zone valves pre-existing Fitted Not required Thermostatic radiator valves pre-existing Fitted Not required Outdoor Sensor pre-existing Fitted Not required Heat Pump Safety Interlock (3) pre-existing Fitted Not required Automatic bypass to system pre-existing Fitted Not required Buffer Vessel Fitted Yes No If yes volume: Litres Plate Heat Exchanger fitted to give hydronic separation of the heat pump circuit to the heating circuit Yes No Expansion vessel for heating is sized, fitted & charged in accordance with manufacturer’s instructions Yes Legionella protection for stored hot water provided by timed temperature control? Yes Water Treatment – SYSTEM AND HEAT PUMP (Tick the appropriate boxes/Measure and Record) The system has been flushed/cleaned and a suitable inhibitor applied upon final fill in accordance with BS7593 and manufacturers instructions ? Yes What system cleaner was used? Brand: Product: What heating system inhibitor was used? Brand: Product: What heat pump system anti-freeze/inhibitor was used? (monoblock only) Brand: Product: % concentration Heat Pump outdoor unit (Tick the appropriate boxes/Measure and Record) Is the heating system adequately frost protected and pipes insulated to prevent heat loss? Yes Split only: The refrigerant circuit has been evacuated and charged in accordance with manufacturer’s instructions Yes The heat pump is fitted on a solid/stable surface capable of taking its weight Yes The necessary heat pump defrost provision been put in place Yes The heat pump fan free from obstacles and operational Yes Condensate drain installed to manufacturer’s instructions Yes CENTRAL HEATING MODE (Tick the appropriate boxes/Measure and Record) The heating system has been filled and pressure tested Yes Heating Flow Temperature 0C Heating Return Temperature 0C System correctly balance/rebalanced Yes DOMESTIC HOT WATER MODE (Tick the appropriate boxes) Is the heat pump connected to a hot water cylinder? Unvented Vented Thermal Store Not connected Hot water cylinder size Litres Stored hot water temperature 0C Hot water has been checked at all outlets Yes Have Thermostatic Blending Valves been fitted? Yes Not required Building Regulations Notification Number (if applicable) (2) MCS installer registration Number (if applicable) MCS product certification number (if applicable) F-gas certification number (split heat pump only) G3 certification number (if applicable) Heat Pump Type (Tick) Split Monoblock Peak heat loss of building kW Is Heat Pump Installed as part of a cascade? Yes Cascade Heat Pump Series ( ) of ( ) Heat Pump Refrigerant Type Refrigerant weight kg Electrical and Hydronic Controls – SYSTEM AND HEAT PUMP (Tick the appropriate boxes) Time and temperature control to heating Room thermostat and programmer/timer Programmable Roomstat Load/weather compensation Optimum start control Time and temperature control to hot water Cylinder thermostat and programmer/timer Combined with Heat pump main controls Hybrid system – synchronised control of boiler and heat pump fitted Yes If Yes – boiler model switching point – (Quote Tariff or Temperature Level)
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© Heating and Hotwater Industry Council (HHIC) www.hhic.org.uk * All installations in England and Wales must be notified to Local Authority Building Control (LABC) either directly or through a Competent Persons Scheme. A Building Regulations Compliance Certificate will then be issued to the customer. Issue date: 13.08.2020 ADDITIONAL SYSTEM INFORMATON (Tick the appropriate boxes/Measure and Record) Water flow rate setting of the heat pump at commissioning (l/min): Additional heat sources connected: Gas Boiler Oil Boiler Electric Heater Solar Thermal Other: ALL INSTALLATIONS All electrical work complies with the appropriate Regulations Yes The heat pump and associated products have been installed and commissioned in accordance with the manufacturer’s instructions Yes The operation of the heat pump and system controls have been demonstrated to and understood by the customer Yes The manufacturer’s literature, including Benchmark Checklist and Service Record, has been explained and left with the customer Yes Commissioning Engineer’s signature: Customer’s signature (To confirm satisfactory demonstration and receipt of manufacturers’ literature)
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© Heating and Hotwater Industry Council (HHIC) www.hhic.org.uk * All installations in England and Wales must be notified to Local Authority Building Control (LABC) either directly or through a Competent Persons Scheme. A Building Regulations Compliance Certificate will then be issued to the customer. Issue date: 13.08.2020 SERVICE RECORD It is recommended that your heating system is serviced regularly and that the appropriate Service Interval Record is completed. Service provider Before completing the appropriate Service Record below, please ensure you have carried out the service as described in the manufacturer’s instructions. Always use the manufacturer’s specified spare part when replacing controls. *A System inhibitor efficacy test is required on every annual service in accordance with the manufacturers’ instructions and BS 7593. It is only acceptable to not have under- taken this if the service engineers attendance visit was in between annual services to attend a non-water facing component. SERVICE 01 Date: Engineer name: Company name: Telephone No: Operative ID No: System inhibitor concentration has been checked and appropriate action taken, in accordance with BS 7593 and heat pump manufacturers’ instructions. * Yes N/a Comments: Signature: SERVICE 01 Date: Engineer name: Company name: Telephone No: Operative ID No: System inhibitor concentration has been checked and appropriate action taken, in accordance with BS 7593 and heat pump manufacturers’ instructions. * Yes N/a Comments: Signature: SERVICE 01 Date: Engineer name: Company name: Telephone No: Operative ID No: System inhibitor concentration has been checked and appropriate action taken, in accordance with BS 7593 and heat pump manufacturers’ instructions. * Yes N/a Comments: Signature: SERVICE 01 Date: Engineer name: Company name: Telephone No: Operative ID No: System inhibitor concentration has been checked and appropriate action taken, in accordance with BS 7593 and heat pump manufacturers’ instructions. * Yes N/a Comments: Signature: SERVICE 01 Date: Engineer name: Company name: Telephone No: Operative ID No: System inhibitor concentration has been checked and appropriate action taken, in accordance with BS 7593 and heat pump manufacturers’ instructions. * Yes N/a Comments: Signature: SERVICE 01 Date: Engineer name: Company name: Telephone No: Operative ID No: System inhibitor concentration has been checked and appropriate action taken, in accordance with BS 7593 and heat pump manufacturers’ instructions. * Yes N/a Comments: Signature:
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© Heating and Hotwater Industry Council (HHIC) www.hhic.org.uk * All installations in England and Wales must be notified to Local Authority Building Control (LABC) either directly or through a Competent Persons Scheme. A Building Regulations Compliance Certificate will then be issued to the customer. Issue date: 13.08.2020 SERVICE RECORD It is recommended that your heating system is serviced regularly and that the appropriate Service Interval Record is completed. Service provider Before completing the appropriate Service Record below, please ensure you have carried out the service as described in the manufacturer’s instructions. Always use the manufacturer’s specified spare part when replacing controls. *A System inhibitor efficacy test is required on every annual service in accordance with the manufacturers’ instructions and BS 7593. It is only acceptable to not have under- taken this if the service engineers attendance visit was in between annual services to attend a non-water facing component. SERVICE 01 Date: Engineer name: Company name: Telephone No: Operative ID No: System inhibitor concentration has been checked and appropriate action taken, in accordance with BS 7593 and heat pump manufacturers’ instructions. * Yes N/a Comments: Signature: SERVICE 01 Date: Engineer name: Company name: Telephone No: Operative ID No: System inhibitor concentration has been checked and appropriate action taken, in accordance with BS 7593 and heat pump manufacturers’ instructions. * Yes N/a Comments: Signature: SERVICE 01 Date: Engineer name: Company name: Telephone No: Operative ID No: System inhibitor concentration has been checked and appropriate action taken, in accordance with BS 7593 and heat pump manufacturers’ instructions. * Yes N/a Comments: Signature: SERVICE 01 Date: Engineer name: Company name: Telephone No: Operative ID No: System inhibitor concentration has been checked and appropriate action taken, in accordance with BS 7593 and heat pump manufacturers’ instructions. * Yes N/a Comments: Signature:
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Original instructions - © Copyright All technical and technological information contained in these technical instructions, as well as any drawings and technical descriptions supplied, remain our property and shall not be multiplied without our prior consent in writing. Subject to alterations.
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FOR UNITED KINGDOM FOR IRELAND Open Monday - Friday: 8am - 6pm Weekends & Bank Holidays: 8.30am - 2pm Baxi, Brooks House Coventry Road, Warwick, CV34 4LL. 0344 871 1545 Please note calls may be monitored or recorded For Baxi Customer Support and Technical Advice, contact us at www.baxi.co.uk Open Monday - Thursday: 8am - 4.30pm, Friday: 8am - 4pm In-Warranty cover on Saturdays: 9am - 12pm October - March. We are closed on Bank Holidays, Christmas Day and New Year’s Day. Baxi Potterton Myson Unit F 5&6, Calmount Park, Calmount Road, Ballymount , Dublin 12, Ireland. 00353 (0)1 4590870 Please note calls may be monitored or recorded For Baxi Potterton Myson Customer Support and Technical Advice, contact us at www.baxipottertonmyson.ie 7762758 - v05 - 19082020 7762758-001-05
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