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Servicing Instructions Type C Boilers G.C.N: 41-116-03 47-116-17 LEAVE THESE INSTRUCTIONS WITH THE END-USER Condensing Country of destination: GB
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2 1. SERVICING INSTRUCTIONS 1.1 REPLACEMENT OF PARTS 1.2 TO GAIN GENERAL ACCESS - Lowering the control panel and removing the front panel - Removing the side panels 1.3 ACCESS TO THE COMBUSTION CHAMBER - Removing the sealed chamber front cover - Removing the fan - Removing the burner - Removing the electrodes - Removing the heat exchanger inspection panel - Removing the condensate collector - Removing the condensate trap - Removing the injector 1.4 ACCESS TO THE GAS VALVE - Removing the gas valve 1.5 ACCESS TO THE WATER CIRCUIT - Removing the D.H.W. (secondary) exchanger - Removing the safety valve - Removing the automatic air vent - Removing the main circuit flow switch - Removing the diverter valve actuator - Removing the D.H.W. flow switch - Removing the pump - Removing the pressure gauge - Removing the expansion vessel - Removing the D.H.W. temperature sensor (N.T.C.) - Removing the C.H. flow temperature sensor (N.T.C.) - Removing the C.H. return temperature sensor (N.T.C.) 1.6 ACCESS TO THE CONTROL SYSTEM - Checking the fuses - Removing the time clock - Removing the P.C.B.s 2. FAULT FINDING 2.1 FAULT FINDING GUIDE (FLOW-CHART) 3. ELECTRICAL DIAGRAMS 4. SHORT SPARE PARTS LIST TABLE OF CONTENTS
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3 FIG. 1.2 FIG. 1.1 1. SERVICING INSTRUCTIONS The life of individual components vary and they will need servicing or replacing as and when faults develop. The fault finding sequence chart in chapter 2 will help to locate which component is the cause of any malfunction, and instructions for removal, inspection and replacement of the individual parts are given in the following pages. 1.1 REPLACEMENT OF PARTS 1.2 TO GAIN GENERAL ACCESS All testing and maintenance operations on the boiler require the control panel to be lowered. This will also require the removal of the casing. To lower the control panel and dismantle the front part of the casing, proceed as follows: 1. Unscrew screws “A” (1/4 turn only) (FIG. 1.1 + FIG. 1.2) and rotate the control panel forward; 2. Unscrew the screws “B” (FIG. 1.3) and unhook the front panel by lifting it. To ensure efficient safe operation, it is recommended that the boiler is serviced annually by a competent person. Before starting any servicing work, ensure both the gas and electrical supplies to the boiler are isolated and the boiler is cool. Before and after servicing, a combustion analysis should be made via the flue sampling point (please refer to the Installation Manual for further details). After servicing, preliminary electrical system checks must be carried out to ensure electrical safety (i.e. polarity, earth continuity, resistance to earth and short circuit). B A A A B FIG. 1.3
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4 Removing the side panels 1. Remove the screws “C” (FIG. 1.4); 2. Pull each panel away from the boiler, then lift the panel up and away from the boiler. 1.3 ACCESS TO THE COMBUSTION CHAMBER D FIG. 1.5 D FIG. 1.4 C C C C D D Removing the sealed chamber front cover 1. Remove the screws “D” (FIG. 1.5); 2. Pull the cover away from the boiler (FIG. 1.6). FIG. 1.6
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5 Removing the fan 1. Loosen nut “E” (FIG. 1.7); 2. Pull off the hose “F” and disconnect the electrical connector “G” (FIG. 1.8); 3. Remove the nuts “H” (FIG. 1.9); 4. Pull the fan away from the exchanger (FIG. 1.10). FIG. 1.10 E FIG. 1.9 FIG. 1.7 FIG. 1.8 F G H H H
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6 Removing the burner With the fan removed (see previous section); 1. Slide the burner from its housing (FIG. 1.11). FIG. 1.13 J I J Removing the electrodes 1. Pull off the ignition cable “I” (FIG. 1.12); 2. Remove the two allen bolts “J” (FIG. 1.13); 3. Extract the electodes (FIG. 1.14). FIG. 1.12 FIG. 1.11 FIG. 1.14 Removing the combustion chamber inspection panel 1. Remove the four nuts “K” (FIG. 1.15); 2. Remove the inspection panel (FIG. 1.16). FIG. 1.15 K K FIG. 1.16 K K
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7 Removing the condensate collector 1. Remove the nuts “L” from each side of front of the collector (FIG. 1.17); 2. Remove the nuts “M” from each side of rear of the collector (FIG. 1.18); 3. Release the condesate trap union “N” (FIG. 1.19); 4. Separate the collector from the combustion chamber(FIG. 1.20); 5. Remove the condensate collector (FIG. 1.21). FIG. 1.17 L FIG. 1.18 M FIG. 1.19 FIG. 1.20 FIG. 1.21 N
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8 Removing the condensate trap 1. Loosen the union “O” (FIG. 1.22); 2. Remove the condensate trap (FIG. 1.23). FIG. 1.22 O Removing the injector See the section on removing the fan before carring out this procedure 1. Disconnect all connections from the fan and remove (FIG. 124); 2. Remove the four screws “P” (FIG. 125); 3. Unscrew the injector “Q” using a suitable screwdriver (FIG. 126); 4. Remove the injector (FIG. 127). Fig. 1.23 Fig. 1.24 Fig. 1.25 P
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9 FIG. 1.26 FIG. 1.27 Q
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10 1.4 ACCESS TO THE GAS VALVE FIG. 1.28 S R Removing the gas valve 1. Disconnect the electrical connection “R” from the gas valve (FIG. 128); 2. Release the top nut “S” (FIG. 1.29); 3. Remove the screws “T” from the bottom of the gas valve pipe (FIG. 1.30); 4. Remove the gas valve (FIG. 1.31). FIG. 1.29 FIG. 1.30 FIG. 1.31 T T
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11 Removing the safety valve 1. Loosen union “W” (Fig. 1.35); 2. Unscrew and remove the valve (Fig. 1.36). 1.5 ACCESS TO THE WATER CIRCUIT FIG. 1.36 Removing the D.H.W. (secondary) exchanger 1. Remove the screw “U” (FIG. 1.32); 2. Remove the screw “V” (FIG. 1.33); 3. Push the exchanger towards the rear of the boiler, lift upwards and remove from the front of the boiler (FIG. 1.34); 4. Before replacing the exchanger ensure that the O-rings are in good condition and replace if necessary. Important! Before any component is removed, the boiler must be drained of all water. FIG. 1.34 FIG. 1.35 U FIG. 1.32 FIG. 1.33 V W
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12 Removing the automatic air vent 1. Unscrew valve “X” (FIG. 1.37); 2. Remove (FIG. 1.38). Removing the main circuit flow switch 1. Release the retaining clip “Y” (FIG. 1.40); 2. Remove the main circuit flow switch. FIG. 1.37 FIG. 1.38 FIG. 1.40 X Y B1 Z A1 FIG. 1.41 Removing the diverter valve actuator 1. Unplug the electrical connector “Z” (FIG. 1.41); 2. Release the retaining clip “A1” and remove the diverter valve actuator (FIG. 1.42). Removing the D.H.W. flow switch 1. Release the retaining clip “B1” (FIG. 1.43); 2. Remove the D.H.W. flow switch. FIG. 1.42 FIG. 1.43
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13 Removing the pump 1. Unplug the electrical connection “C1” (FIG. 1.44); 2. Release the nut “D1” (FIG. 1.45); 3. Release the nut “E1” (FIG. 1.46); 4. Remove the pump (FIG. 1.47). E1 D1 C1 FIG. 1.44 FIG. 1.47 FIG. 1.46 FIG. 1.45
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14 Removing the expansion vessel See the section on removing the condesate trap before carrying out this procedure 1. Loosen nut “H1” (FIG. 1.51); 2. Loosen nut “I1” and remove backnut “J1” (FIG. 1.52); 3. Remove the expansion vessel (FIG. 1.53). Removing the pressure gauge 1. Release coupling “F1” (FIG. 1.48); 2. Ease the pressure gauge “G1” through the control panel from the rear (FIG. 1.49); 3. Remove the pressure gauge. (FIG 1.50). F1 G1 FIG. 1.48 FIG. 1.49 FIG. 1.50 H1 I1 FIG. 1.51 FIG. 1.52 FIG. 1.53 J1
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15 Removing the D.H.W. temperature probe (N.T.C.) (MFFI only) 1. Remove the electrical connector “K1” by pulling off (Fig. 1.54); 2. Unscrew and remove the D.H.W. temperature probe “L1” (FIG. 1.55). K1 L1 FIG. 1.54 FIG. 1.55 M1 FIG. 1.56 Removing the C.H. flow temperature probe (N.T.C.) 1. Remove the electrical connector “M1” by pulling off (Fig. 1.56); 2. Unscrew and remove the C.H.flow temperature probe “N1” (FIG. 1.57). O1 P1 FIG. 1.58 FIG. 1.59 Removing the C.H. return temperature probe (N.T.C.) 1. Remove the electrical connector “O1” by pulling off (Fig. 1.58); 2. Unscrew and remove the C.H. return temperature probe “P1” (FIG. 1.59). N1 FIG. 1.57
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16 Checking the fuses 1. Remove the inspection cover on the reverse of the control panel (FIG. 1.60); 2. Remove the fuses by pushing and rotating fuse holders “Q1” (FIG. 1.61). 1.6 ACCESS TO THE CONTROL SYSTEM Removing the time clock 1. Remove the inspection cover on the reverse of the control panel (FIG. 1.60); 2. Lower the time clock door (FIG. 1.62); 3. Unplug the electrical connection “R1” from the time clock (FIG. 1.63); 4. Gently squeeze each end of the time clock and push through the control panel (FIG. 1.64). Q1 FIG. 1.60 FIG. 1.61 FIG. 1.64 FIG. 1.62 FIG. 1.63 R1
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17 Removing the P.C.B.s 1. Remove the inspection cover on the reverse of the control panel (FIG. 1.60); 2. Remove the screws “S1” (FIG. 1.65 & FIG. 1.66); 3. Remove the facia panel (FIG. 1.67); 5. Disconnect the connection cable ”T1” (FIG. 1.68); 6. Unplug the electrical connectors “U1” from the main P.C.B. (Fig. 1.69); 7. Remove the main P.C.B. mounting screws “V1’ (four in total) (FIG. 1.70); 8. Remove the main P.C.B. (FIG. 1.71); 9. Remove the display P.C.B. mounting screws “W1’ (FIG. 1.72); 10.Remove the display P.C.B. (FIG. 1.73); 11.Replace either P.C.B. in reverse order. FIG. 1.67 S1 FIG. 1.65 FIG. 1.66 S1 FIG. 1.70 T1 FIG. 1.68 FIG. 1.69 U1 S1 S1 U1 U1 V1 V1 FIG. 1.71
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18 W1 FIG. 1.72 FIG. 1.73 W1 W1 W1
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19 2. FAULT FINDING TABLE I and II YES YES YES NO NO IS THE POWER L.E.D. AND DISPLAY ON? DOES A STOP CODE APPEAR ON THE DISPLAY? POSITION OF THE SUMMER/ WINTER SELECTOR 1. Check the fuses 2. Check the power supply to the control panel 3. Check/replace the ON/OFF button 4. Check the connection between the main and display P.C.B.s 5. Check/replace the main and display P.C.B.s NO PUSH THE ON/OFF BUTTON TO ON MAKE SURE THAT: 1. There is sufficient water in the system 2. The gas is turned on 3. The electrical supply is turned on SUMMER WINTER COMFORT SELECTOR ON/OFF: green L.E.D. on YES: COMFORT ON YES: COMFORT ON Flow temperature <40°C COMFORT SELECTOR ON/OFF: green L.E.D. on Flow temperature >50°C Flow temperature <40°C Flow temperature >50°C NO: COMFORT OFF NO: COMFORT OFF YES NO YES NO NO YES NO YES YES YES D.H.W. IS BEING DRAWN? D.H.W. IS BEING DRAWN? YES NO MUST THE TIME CLOCK AND/OR ROOM THERMOSTAT BE ACTIVATED? NO NO BUILT-IN ELECTRONIC ANTI-FROST DEVICE: Is there a condition for it to be active? (- flow temp. < 3°C - outdoor temp. < -3°C (outdoor sensor optional) - Jumper 4 selects the pump for continuous operation) BUILT-IN ELECTRONIC ANTI-FROST DEVICE: Is there a condition for it to be active? (- flow temp. < 3°C - outdoor temp. < -3°C (outdoor sensor optional) - Jumper 4 selects the pump for continuous operation) THERE IS NO CALL FOR PUMP OPERATION THERE IS NO CALL FOR PUMP OPERATION A It is possible to detect and correct any defect by using the standard fault finding diagrams described in this chapter. 2.1 FAULT FINDING GUIDE (FLOW-CHARTS) Model 24 MFFI
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20 YES NO MAKE SURE THAT: 1. There is sufficient water in the system 2. The gas is turned on 3. The electrical supply is turned on PUSH THE ON/OFF BUTTON TO ON IS THE POWER L.E.D. AND DISPLAY ON? DOES A STOP CODE APPEAR ON THE DISPLAY? POSITION OF THE SUMMER/ WINTER SELECTOR SUMMER WINTER NO YES ON/OFF button 5. Check/replace the 1. Check the fuses 2. Check the power supply to 3. Check/replace the 4. Check the connection between main and display P.C.B.s the control panel the main and display P.C.B.s I and II TABLE SELECTOR C.H. ONLY ON/OFF ON/OFF C.H. ONLY SELECTOR The C.H. flow temperature is lower than 80°C and the temperature of the cylinder is at least 5°C below the one selected. The C.H. flow temperature is lower than 80°C and the temperature of the cylinder is at least 5°C below the one selected. ON (green L.E.D. on): cylinder excluded ON (green L.E.D. on): cylinder excluded NO NO YES YES YES NO OFF (green L.E.D. off): cylinder active OFF (green L.E.D. off): cylinder active MUST THE TIME CLOCK AND/OR ROOM THERMOSTAT BE ACTIVATED? ANTI-FROST DEVICE: Is there a condition for it to be active? (- flow temp. < 3°C - outdoor temp. < -3°C (outdoor sensor optional) - Jumper 4 selects the pump for continuous operation) BUILT-IN ELECTRONIC THERE IS NO CALL FOR PUMP OPERATION YES NO BUILT-IN ELECTRONIC ANTI-FROST DEVICE: Is there a condition for it to be active? (- flow temp. < 3°C - outdoor temp. < -3°C (outdoor sensor optional) - Jumper 4 selects the pump for continuous operation) THERE IS NO CALL FOR PUMP OPERATION A Model 24 RFFI System
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21 YES YES NO IS THE PUMP RUNNING? 1. Check if there is air in the system 2. Check the main circuit flow switch operation 3. Check the pressure on the water gauge and fill system to 1 bar 1. Check pump cable 2. Check/replace main P.C.B. Release/replace pump Push the RESET button POWER TO THE PUMP? YES YES IS THE MAIN CIRCUIT FLOW SWITCH WORKING CORRECTLY? A21: does not close A22: does not open NO NO A B Model 24 MFFI/24RFFI System
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22 1. Check the fan cable 2. Replace the fan 3. Replace the main P.C.B. 1. Check/replace ignition electrode 2. Check ignition cable 3. Check/replace the main P.C.B. Replace the main P.C.B. IS THE FAN RUNNING? DOES CODE A33 APPEAR? IGNITION SPARKS ARE GENERATED REGULARLY? YES NO NO YES YES NO 1. Check the power supply of the gas valve. 2. Check for an air pressure signal 3. Check the gas pressure on the burner 4. Check the soft-light adjustment 5. Replace the gas valve 6. Check/replace the main P.C.B. 1. Table II 2. Press RESET 1. Table III IS THE BURNER ALIGHT? BOILER HAS SHUTDOWN? YES YES NO NO IS THERE STILL A PROBLEM? NORMAL OPERATION NO YES B Model 24 MFFI/24RFFI System
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23 TABLE I TABLE III DISPLAY A01 A02 A03 A07 A19 A20 A21 A22 A33 A99 CAUSE Too many attempts to ignite on starting up After three attempts at ignition, no increase in ∆T was detected The heating flow temperature exceeds 100°C during operation Too many failures to flame in one period during operation The flame was detected after the gas valve had closed The flame was detected before the gas valve opened The flow switch does not close The flow switch does not open Problem with the fan Problem with the electronic monitoring TABLE II DISPLAY E03 E56 E66 E04 E05 E08 E20 E21 E22 E23 E64 E74 E99 CAUSE Flow temperature over 100°C while boiler is not in operation (stand-by) Heating flow temperature probe in open circuit Heating flow temperature probe Domestic hot water temperature probe in open circuit Domestic hot water temperature probe in short circuit Under floor heating temperature probe in open circuit Flame detected with gas valve closed Error in the electrical connection (live and neutral crossed) Problem with the 50Hz power supply Flame detection electrode short-circuited Heating return temperature probe in open circuit Heating return temperature probe in short circuit Problem within the electronic system FAULTS 1. Drawing D.H.W: Radiators heat up in summer mode 2. Drawing D.H.W: Insufficient hot water temperature 3. Drawing D.H.W: Noisy operation 4. Decrease/increase heating circuit pressure 5. When cold water tap turned off, the boiler ignites 6. Insufficient radiator temperature POSSIBLE CAUSES - faulty 3-way valve - check C.H./D.H.W. temperature probes - check gas pressures - check water flow rate - check secondary heat exchanger - primary heat exchanger faulty or lime-scale deposits - low heating system water pressure - check gas pressures - check C.H./D.H.W. temperature probes - check for leaks on the heating circuit - faulty filling-loop - faulty secondary heat exchanger - expansion vessel faulty - drop in pressure in the water mains, with consequent water hammer - check C.H. temperature probe - check by-pass - check gas pressures
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24 3. ELECTRICAL DIAGRAMS LEGEND: A: JUMPER When needed, the P.C.B. allows the different options to be selected by means of a wire link. The boiler has the following basic arrangement: 1 OPEN 2 CLOSED (jumper) 3 OPEN 4 OPEN 5 OPEN 6 OPEN 7 CLOSED 8 OPEN (MFFI); CLOSED (SYSTEM) NOTE: under absolutely no circumstances must jumpers 2, 7 and 8 be removed. The opening of such contacts will lead to boiler malfunction. This is the factory configuration. It is recommended that this set-up not be changed, unless under the following particular circumstances: JUMPER 3: if the contact is closed, the Secondary Output (flying clamp connected to connection C7; positions 1-9) controls a LPG valve (optional). JUMPER 4: if the contact is closed, the continuous operation of the pump is selected. If the contact remains open, it has no effect and there is no change in the operation of the boiler. JUMPER 5: if the contact is closed, the signal transmitted by the connection of the secondary output clasp (connected to C7; positions 1-9) relates to a secondary pump (optional). If the contact remains open, the output signal controls a zone valve (optional). JUMPER 6: not used JUMPER 7/8: I = inserted (contact closed) N.I = not inserted (contact open) NOTE: it is essential that the operations involving setting of the jumpers be carried out only with the device turned off. B: Control microprocessor C: Flame detection jumper (under no circumstances should this jumper be moved from the 1-2 position) D: Anti-cycling device (RA) E: Maximum heating output regulation (PR) F: Soft-light regulation (RLA) G: Operating mode selector knob H: Heating temperature adjustment I: Domestic hot water temperature adjustment J: Remote control module K: Main microprocessor L: Relay M: Fuses (2 x 0.54 A SLOW) N: Transformer (PRI: 230V-50Hz; SEK: 10V-0,8VA; SEK:10V-3,5VA; SEK:10V- 3,5VA;) O: Fuses (2 x 3.15 A SLOW) P: Earth Q: Spark generator R: Connection to the main P.C.B. S: Comfort light T: Programming keys U: Comfort key V: Alpha-numeric display X: Set and reset key W: Connection to PC 7 N.I. I. N.I. I. 8 N.I. N.I. I. I. CONFIGURATION Central heating only MFFI Not used RFFI System
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25 C1 = FAN 1: “Hall” sensor power supply 12V (red) 2: “Hall” sensor ground (blue) 3: Not used 4: Start of coil (black) 5: “Hall” sensor input (white) 6: End of coil (brown) C2 = POWER SUPPLY 1: Earth (yellow/green) 2: Earth (yellow/green) 3: Not connected 4: Neutral (blue) 5: Not connected 6: Live (brown) C3 = CONNECTION TO ROOMSTAT 1: Input - 1 2: Input - 2 C4 = TIMER 1: 3 V output 2: Timer ground 3: Timer output 4: Not connected C5 = REMOTE CONTROL (Bus+/Bus-) 1: Input/output-1 2: Input/output-2 C6 = SENSOR CONNECTOR 1: Domestic hot water flow switch (grey) 2: Main circuit flow switch (grey) 3: Under floor heating thermostat (grey) 4: Heating flow sensor (grey) 5: Heating return sensor (grey) 6: Domestic hot water sensor (grey) 7: Not used: jumper 8: Outdoor sensor (grey) 9: Domestic hot water flow switch (grey) 10: Main circuit flow switch (grey) 11: Under floor heating thermostat (grey) 12: Flow sensor (grey) 13: Heating sensor (grey) 14: Domestic hot water sensor (grey) 15: Not used: under floor heating 16: Outdoor sensor (grey) C7 = EQUIPMENT CONNECTIONS 1: Secondary output (optional) 2: Gas valve (white) 3: 3-way valve neutral (white) 4: Pump (white) 5: Ionisation (black) 6: Not connected 7: Ground 8: Pump earth (yellow/green) 9: Secondary output (optional) 10: Gas valve (brown) 11: 3-way valve (domestic hot water) (brown) 12: 3-way valve (heating) (brown) 13: Pump (brown) 14: Not connected 15: Earth 16: Gas valve earth (yellow/green)
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26 ecoGENUS 24 MFFI - ecoGENUS 24 RFFI
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27 24 MFFI 21 15 13 301 302 301 53 50 49 48 46 47 54 52 55 57 56 49 2 51 52 2 1 4 5 3 51 57 62 26 27 29 33 40 42 43 44 41 39 38 35 34 36 32 31 30 28 98 99 36 33 100 28 45 37 37 102 11 10 9 7 8 7 81 81 80 17 15 23 25 24 22 16 18 78 79 20 84 83 16 17 86 84 85 19 21 14 8 13 12 77 66 57 65 58 64 57 107 108 106 105 104 103 94 96 93 91 90 76 3 3 6 8 7 92 58 60 61 68 7 74 71 70 63 75 67 7 72 73 69 3 3 3 3 95 59 59 59 87 88 89 97 101 82 19 3 311 312 313 332 331 335 336 334 333 333 4. SHORT SPARE PARTS LIST ecoGENUS - 24 MFFI
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28 573294 573520 569236 997147 997077 998127 571438 998802 998144 573727 573172 573528 997207 571649 998765 569390 998672 998668 998459 998889 998888 998651 998077 998894 997206 997151 569387 573521 564264 998791 998792 573768 998801 998670 571444 571441 574248 998490 571987 571441 574248 571447 998013 Key no. G.C. part no. ARISTON Part No. Description 1 7 8 11 12 13 15 20 21 22 23 24 30 38 41 42 62 64 70 72 73 75 78 80 81 83 84 87 89 90 91 92 97 106 311 312 313 331 332 333 334 335 336 164 225 164 338 E25 427 E25 429 378 814 E26 378 164 229 E26 819 E25 437 164 261 E26 657 E26 658 E25 518 164 230 164 282 379 079 E25 581 E24 077 Expansion vessel Gasket 3/4" Temperature probe (C.H.W.) Motor (3-way valve) Fixing clip (motor) Flow group Gas valve Micro switch set (main flow & D.H.W.) Return group Manual vent cock Safety valve 1/2" 3 bar) Gasket 1/2" Time clock Pressure gauge P.C.B. (display) Gasket 1/4" Electrode (ignition/detection) Burner Electrode cable (resistive) Fan cable & sensor Fan Injector (G20) O-ring gasket Secondary exchanger (p-type 27kW) O-ring (secondary exchanger) Pump Gasket 1" Gasket 3/8" Auto air vent Condensate Trap Cap (trap filling) Gasket (airtight - condensate trap) P.C.B. (main) Main exchanger (aluminium) D.H.W. actuator Kit Heating pressure switch kit Pressure cover Central heating by-pass kit D.H.W. pressure switch kit Heating pressure switch kit Pressure cover 3-way spring kit Heating actuator bush 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 E25 417 ecoGENUS - 24 MFFI
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29 24 RFFI SYSTEM 23 17 14 301 302 301 54 51 50 49 47 48 55 53 56 58 57 2 52 53 2 1 4 5 3 3 52 58 63 27 28 30 34 41 43 44 45 42 40 39 36 35 37 33 32 31 29 96 97 37 34 98 29 46 38 38 100 25 26 21 24 21 21 22 80 79 80 83 82 8 16 15 67 58 66 59 65 58 105 106 104 103 102 101 92 94 89 88 86 76 3 3 6 8 87 59 61 62 69 7 74 72 64 75 68 71 73 70 3 3 3 3 93 60 60 60 84 95 99 9 7 8 7 19 17 18 20 18 19 7 7 78 10 11 13 14 85 90 91 12 77 81 11 50 7 23 331 335 332 336 334 333 333 ecoGENUS - 24 RFFI SYSTEM
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30 573294 573520 569236 997147 997077 998456 571438 573528 997828 573727 573172 997207 571649 998765 569390 998672 998668 998889 998888 998651 998783 997151 569387 573521 998791 573768 998792 564254 998459 998801 998670 571987 571443 571441 574248 571447 998013 Key no. G.C. part no. ARISTON Part No. Description 1 7 8 12 13 14 17 21 23 24 25 31 39 42 43 63 65 71 73 79 80 84 86 87 88 90 91 95 104 331 332 333 334 335 336 75A 75B 164 225 164 338 E25 427 E25 429 164 229 378 814 E26 378 E26 819 E25 437 164 261 E25 518 164 230 164 282 379 079 E24 077 Expansion vessel Gasket 3/4" Temperature probe (C.H.W.) Motor (3- Way valve) Fixing clip (motor) Flow group Gas valve Gasket 1/2" Return group Manual vent cock Safety valve 1/2" 3 bar) Time clock Pressure gauge P.C.B. (display) Gasket 1/4" Electrode (ignition/detection) Burner Fan cable & sensor Fan Injector (G20) Injector (G30) Pump Gasket 1" Gasket 3/8" Condensate Trap Gasket (airtight - condensate trap) Cap (trap filling) Auto air vent Electrode cable (resistive) P.C.B. (main) Main exchanger (aluminium) D.H.W. pressure switch kit Central heating by-pass kit Heating pressure switch kit Pressure cover 3-way spring kit Heating actuator bush 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 E25 417 ecoGENUS - 24 RFFI SYSTEM
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Manufacturer: Merloni TermoSanitari SpA - Italy Commercial subsidiary: MTS (GB) LIMITED MTS Building Hughenden Avenue High Wycombe Bucks HP13 5FT Telephone: (01494) 755600 Fax: (01494) 459775 Internet: http://www.mtsgb.ltd.uk E-mail: info@mtsgb.ltd.uk Technical Service Hot Line: (01494) 539579
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