Baxi
Инструкция Baxi Instruction Baxi 200 400 Combi User Manual
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Инструкция · Русский · Обновлено: 11 августа 2026 г.
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Please keep these instructions in a safe place. If you move house please hand them over to the next occupier. United Kingdom en User Guide High Efficiency Wall Hung Condensing Gas Boiler Baxi Combi 224 – 228 – 424 — 428
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Dear Customer, Thank you very much for buying this appliance. Please read through the manual carefully before using the product, and keep it in a safe place for later reference. In order to ensure continued safe and efficient operation we recommend that the product is serviced regularly. Our service and customer service organisation can assist with this. We hope you enjoy years of problem-free operation with the product.
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Contents 1 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.1 General safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.2 Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 1.2.1 The Benchmark Scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 1.2.2 Benchmark Commissioning Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 1.3 Liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 1.3.1 User's liability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 1.3.2 Installer's liability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 1.3.3 Manufacturer's liability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2 About this manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.2 Additional documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.3 Symbols used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.3.1 Symbols used in the manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.4 Abbreviations/glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 3 Technical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3.1 Homologations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3.1.1 Certifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3.2 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 3.2.1 Technical information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 3.2.2 Dimensions and connections/clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 4 Description of the product . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 4.1 General description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 4.2 Operating principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 4.2.1 In operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 4.3 Control panel description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 4.3.1 Description of the keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 4.3.2 Description of the display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 4.4 Accessories and options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 4.4.1 Optional accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 5 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 5.1 Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 5.1.1 Operation checking procedure and basic fault identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 5.2 Use of the control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 5.2.1 Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 5.3 Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 5.4 Frost protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 6 Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 6.1 List of parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 6.1.1 Reading out operating parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 6.2 Setting the parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 6.2.1 Setting the central heating water temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17 6.2.2 Setting the domestic hot water temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 7 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 7.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 7.2 Maintenance instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 7.2.1 Re-pressurising the system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 7.3 Venting the installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 7.4 Draining the installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21 8 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22 8.1 Error codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 8.2 Fault finding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23 9 Decommissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 9.1 Decommissioning procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25 10 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26 Contents 7661618 - 1 - 04072016 3
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10.1 Disposal and recycling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 11 Environmental . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 11.1 Energy saving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 11.2 Room thermostats and settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 12 Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 12.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 12.2 Standard warranty terms and conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 13 Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 13.1 Product fiche - Combination boilers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 13.2 Package fiche - boilers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 13.3 Package fiche - Combination heaters (boiler or heat pumps) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33 Contents 4 7661618 - 1 - 04072016
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1 Safety 1.1 General safety instructions Danger This boiler can be used by children aged 8 years and above and by persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge when they have been given supervision or instruction concerning the safe use of the device and understand the resulting risks. Children must not be allowed to play with the appliance. Cleaning and user maintenance must not be carried out by children without supervision. Danger If you smell gas: 1. Turn off the gas supply at the meter. 2. Open windows and doors in the hazardous area. 3. Do not operate light switches. 4. Do not operate any electrical equipment. 5. Do not use a telephone in the hazardous area. 6. Extinguish any naked flame and do not smoke. 7. Warn any other occupants and vacate the premises. 8. Telephone the National Gas Emergency Service on:- 0800 111 999. Note If a water or gas leak occurs or is suspected, the boiler can be iso lated at the inlet valves by turning their taps through 90° (1/4 turn) downwards. A ON B OFF For advice please contact your Installer, Annual Service Provider or Baxi Customer Support - The Service Division of Baxi. You can contact Baxi Customer Support on telephone number 0344 871 1545. When contacting Baxi Customer Support it will be useful to have the "Benchmark Checklist " at the back of the Installation & Serv ice Manual to hand as it includes details relevant to the boiler and installation. Warning Do not touch flue/chimney pipes. Depending on the settings of the appliance, the temperature of flue/chimney pipes may exceed 60 °C. Do not touch radiators for long periods. Depending on the settings of the appliance, the temperature of radiators may reach 85 °C. Take precautions with domestic hot water. Depending on the set tings of the appliance, domestic hot water temperature may reach 65 °C. Caution Do not neglect to service the appliance. Contact a qualified pro fessional or take out a maintenance contract for the annual servic ing of the appliance. Fig.1 Taps ON and OFF PN-0000263 A B 1 Safety 7661618 - 1 - 04072016 5
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1.2 Recommendations Caution Only qualified professionals are authorised to work on the boiler and the installation. The appliance has an integral frost protection mode as long as there is power to the boiler. Note Regularly check the water pressure in the system (recommended pressure is 1.5 bar). Keep the appliance accessible at all times. Do not remove or cover the user information and serial number la bels affixed to the boiler control flap. They must remain legible throughout the lifetime of the boiler. 1.2.1 The Benchmark Scheme Baxi Heating UK Ltd is a licensed member of the Benchmark Scheme which aims to improve the standards of installation and commissioning of domestic heating and hot water systems in the UK and to encourage regu lar servicing to optimise safety, efficiency and performance. Benchmark is managed and promoted by Heating and Hotwater Industry Council. For more information visit www.centralheating.co.uk 1.2.2 Benchmark Commissioning Checklist Please ensure that the installer has fully completed the Benchmark Check list on the inside back pages of the installation instructions supplied with the product and that you have signed it to say that you have received a full and clear explanation of its operation. The installer is legally required to complete a commissioning checklist as a means of complying with the ap propriate Building Regulations (England and Wales). All installations must be notified, by the installer, to Local Area Building Control either directly or through a Competent Persons Scheme. A Build ing Regulations Compliance Certificate will then be issued to the customer who should, on receipt, write the Notification Number on the Benchmark Checklist. This product should be serviced annually to optimise its safety, efficiency and performance. The service engineer should complete the relevant sec tion of the Benchmark Service Record in the Installation & Service manual after each service. The completed Benchmark Checklist & proof of annual servicing (where applicable) will be required in the event of any warranty work. 1.3 Liabilities 1.3.1 User's liability To guarantee optimum operation of the system, you must abide by the fol lowing instructions: Read and follow the instructions given in the manuals provided with the appliance. Call on a qualified professional to carry out installation and initial com missioning. Get your installer to explain your installation to you. Have the required inspections and maintenance carried out by a quali fied installer. Keep the instruction manuals in good condition close to the appliance. 1 Safety 6 7661618 - 1 - 04072016
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1.3.2 Installer's liability The installer is responsible for the installation and initial commissioning of the appliance. The installer must abide by 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 stand ards. 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. 1.3.3 Manufacturer's liability Our products are manufactured in compliance with the requirements of the various Directives applicable. They are therefore delivered with the marking and any documents 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. 1 Safety 7661618 - 1 - 04072016 7
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2 About this manual 2.1 General Warning Installation, repair and maintenance must only be carried out only by a competent person. All Gas Safe registered engineers carry an ID card with their licence num ber and a photograph. You can check your engineer is registered by tele phoning 0800 408 5500 or online at www.gassaferegister.co.uk This manual is intended for the user of the Baxi Combi boiler. If the appli ance is sold or transferred, or if the owner moves leaving the appliance behind you should ensure that the manual is kept with the appliance for consultation by the new owner and their installer. The appliance is designed as a boiler for use in residential domestic envi ronments on a governed meter supply only. The selection of this boiler is entirely at the owner’s risk. If the appliance is used for purposes other than or in excess of these specifications, the manufacturer will not accept any liability for resulting loss, damage or injury. The manufacturer will not accept any liability whatsoever for loss, damage or injury arising as a result of failure to observe the instructions for use, maintenance and installation of the appliance. 2.2 Additional documentation Various timers, external controls, etc. are available as optional extras. Full details are contained in the relevant sales literature. 2.3 Symbols used 2.3.1 Symbols used in the manual This manual uses various danger levels to draw attention to special in structions. 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 in jury. Caution Risk of material damage. Note Please note: important information. See Reference to other manuals or pages in this manual. 2.4 Abbreviations/glossary CH Central heating 2 About this manual 8 7661618 - 1 - 04072016
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DHW Domestic hot water PCU PCB for managing burner operation Pnc Condensing output SU Safety PCB 2 About this manual 7661618 - 1 - 04072016 9
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3 Technical specifications 3.1 Homologations 3.1.1 Certifications Tab.1 Certifications CE certificate number 0085CQ0192 NOx class 5 (EN 15502) Boiler type C13, C33 3.2 Technical data 3.2.1 Technical information Tab.2 General Baxi Combi 224 228 424 428 Gas council numbers 47–077–21 47–077–22 47–077–23 47–077–24 Tab.3 Heating circuit specifications Baxi Combi 224 228 424 428 Maximum pressure bar 3 3 3 3 Minimum pressure bar 0.5 0.5 0.5 0.5 Heating circuit temperature °C 25/80 ± 5° 25/80 ± 5° 25/80 ± 5° 25/80 ± 5° Tab.4 Domestic water circuit specifications Baxi Combi 224 228 424 428 Maximum pressure bar 8.0 8.0 8.0 8.0 Dynamic minimum pressure bar 0.15 0.15 0.15 0.15 Minimum water flow l/min 2.0 2.0 2.0 2.0 Domestic water circuit tempera ture °C 35/60 ± 5° 35/60 ± 5° 35/60 ± 5° 35/60 ± 5° Specific flow rate (D) l/min 11.5 13.4 11.5 13.4 Note Where low flow taps or fittings are intended to be used in the DHW system connected to the boiler, it is strongly recommended that the DHW flow rate DOES NOT fall below 2.5 l/min. This will ensure reliable operation of the DHW function. Tab.5 Electrical specifications Baxi Combi 224 228 424 428 Electrical power supply voltage V 230 230 230 230 Electrical power supply fre quency Hz 50 50 50 50 Nominal electrical power W 84 94 84 94 External fuse rating Amp 3A 3A 3A 3A 3 Technical specifications 10 7661618 - 1 - 04072016
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Tab.6 Other specifications Baxi Combi 224 228 424 428 Degree of protection against humidi ty (EN 60529) IP IPX5D IPX5D IPX5D IPX5D Net weight when empty/water load kg 26/28 26/28 26/28 26/28 Dimensions (height/width/depth) mm 700/395/279 700/395/279 700/395/279 700/395/279 Clearances (above/below casing) front (for servicing)/(in operation) side (left hand/right hand) mm mm mm 178/250* 1000*/6 5/5 178/250* 1000*/6 5/5 178/250* 1000*/6 5/5 178/250* 1000*/6 5/5 * These are recommended dimensions. See fig. 3 for Minimum allowable clearances Note All data in this section are nominal values and subject to normal production tolerances. 3.2.2 Dimensions and connections/clearances Fig.2 Dimensions and connections 1 2 3 4 5 6 7 8 700 279 395 PN-0000264 1 Safety valve 2 Heating circuit water flow 3 Condensates discharge 4 Heating system/boiler drain tap 5 Domestic hot water outlet 6 Gas inlet 7 Mains cold water inlet 8 Heating circuit water return A* Clearances below — 200mm minimum, 250mm recommended B* Clearances in front — 450mm minimum, 1000mm recommended The clearances shown in the diagram are minimum requirements to allow for case removal, spanner access and air movement. These should be ob served at all times and kept clear of obstructions. Fig.3 Clearances A* 5.0 6 B* 285 700 395 PN-0000205 5.0 178 3 Technical specifications 7661618 - 1 - 04072016 11
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4 Description of the product 4.1 General description The Baxi Combi range of fully automatic gas fired wall hung condensing combination boilers are room sealed and fan assisted, and will serve cen tral heating and mains fed domestic hot water. Tab.7 The boiler is set to give a maximum output of :- 24 model 24 kW DHW 21.8 kW CH Pnc (Condensing) 28 model 28 kW DHW 26.1 kW CH Pnc (Condensing) The boiler is factory set for use only on Natural Gas (G20). Priority is given to domestic hot water. The boiler model, serial number and Gas Council number are also shown on the information label. This is for user reference. A Information label 4.2 Operating principle 4.2.1 In operation Whilst the boiler is in operation cooled flue gases are discharged through the flue gas discharge pipe. This may appear as a cloud of steam which is normal. Condensed water is discharged from the boiler heat exchanger into a pipe (the condensate drain). This pipe must never be altered or re-routed ex cept by a qualified professional. 4.3 Control panel description 4.3.1 Description of the keys Heating temperature control knob Level access button: Information, Installer or Chimney Sweep Manual reset button Domestic hot water temperature control knob 4.3.2 Description of the display Hour run meter Malfunction Maintenance Reset necessary Burner status Heating mode Outside temperature sensor Domestic hot water mode Fig.4 Information label location PN-0000265 A Fig.5 Control panel PN-0000266 Fig.6 Display screen PN-0000267 4 Description of the product 12 7661618 - 1 - 04072016
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4.4 Accessories and options 4.4.1 Optional accessories The table below shows the accessories available for this boiler range. Tab.8 Optional accessories Part number Accessory 7658276 Baxi plug-in 24 hr mechanical timer combi - RH 7658523 Baxi plug-in 7 day digital timer combi - RH 7658781 Baxi plug-in receiver 24 hr RF programmable mech room thermostat-combi 7658789 Baxi plug-in receiver 7 day RF digital programmable room thermostat-combi 7212438 Baxi single channel wired programmable room thermostat 7212444 Baxi single channel wired timer 720971601 Baxi room thermostat 720330001 Baxi wired weather sensor 720648301 Multifit condensate & PRV combined pump 720644401 Multifit 1m condensate drain pipe 'trace heating' element 720664101 Multifit 2m Condensate drain pipe 'trace heating' element 720664201 Multifit 3m condensate drain pipe 'trace Heating' element 720664401 Multifit 5m condensate drain pipe 'trace heating' element 7659335 Baxi 200-400 stand off kit 5121379 Multifit remote secondary PRV kit 248221 Multifit filling loop (Not required for 424 and 428 models) For Flue Accessories (elbows, extensions, clamps etc.) refer to the Flue Installation Guide supplied in the literature pack. Any of the above MUST be fitted ONLY by a qualified competent person. Further details can be found in the relevant sales literature and at www.baxi.co.uk 4 Description of the product 7661618 - 1 - 04072016 13
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5 Operation 5.1 Start-up 5.1.1 Operation checking procedure and basic fault identification Fig.7 Start-up and checking START Make sure the gas supply is turned ON and check if other gas appliances are operating (e.g. fire, cooker). If the property has a prepayment meter ensure it has sufficient credit. NO If no gas, consult your supplier. Is there electricity to the boiler ? Is the display lit ? Check electrical supply to boiler is switched on. NO YES Is the Burner Flame showing. Burner Flame (Indicates burner is on) Boiler operating satisfactorily. NO YES YES YES YES YES If it does not reset CONTACT YOUR INSTALLER OR SERVICE ENGINEER. Press the RESET button on the controller to restart the boiler Are reset and triangle symbols illuminated or flashing? Is the telephone symbol illuminated or flashing? OR PN-0000229 5 Operation 14 7661618 - 1 - 04072016
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Fig.8 Start up and checking (continued) IMPORTANT: Where Low Flow Taps or Fittings are intended to be used in the DHW system connected to the boiler it is strongly recommended that the DHW flow rate DOES NOT fall below 2.5 l/min. This will ensure reliable operation of the DHW function. Is the Timer ON and calling for heat ? Is the Room Thermostat (if fitted) set high enough ? 12 1 2 3 4 5 6 7 8 9 10 11 Typical examples of external timer Ensure timer is set for Central Heating ON (see any instructions supplied with timer) NO YES YES NO 15 10 5 20 25 15 10 5 20 25 Turn Room Thermostat to maximum setting (typical example shown) CH ON CH OFF bar 0 1 2 3 4 Is the Central Heating System Pressure between 1.0 and 2.5 bar ? Repressurise the system to between 1.0 and 1.5 bar. NO YES R Error Code flashing between E.02 and .07 indicating system pressure below 0.5 bar. YES If you don’t know what you need to do to get the boiler to light, or need help with the system and controls, contact your installer as soon as possible R PN-0000230 5 Operation 7661618 - 1 - 04072016 15
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5.2 Use of the control panel 5.2.1 Control 1. The controls are operated by the buttons and knobs shown. 1 Central heating water temperature control 2 Domestic Hot Water temperature control 3 Reset button 5.3 Shutdown Isolate the mains power supply at the fused spur unit. Isolate the gas supply at the boiler valve. Protect the boiler from frost. Note The boiler is not protected against frost once it has been shut down. Note If it is anticipated that the boiler will not be used for a long period or the property is to be unoccupied it is recommended that the system be drained if the electricity and gas supplies are to be turned off. Your installer will be able to offer advice. 5.4 Frost protection Where possible, draining the system should be avoided. If the system is to be unused during winter months several precautions must be taken: Any parts of the system that are in unheated areas of the dwelling fitted with a device such as a pipe thermostat or frost thermostat. Power must remain supplied to the boiler and controls. Gas must remain supplied to the boiler. The boiler pump will operate if the system temperature drops below 7°C. If the temperature falls to 4°C the burner will ignite and remain lit until the temperature reaches 10°C. At this temperature the burner will extinguish but the pump will continue to operate for 15 minutes. This feature will pro tect the boiler and to some extent adjacent parts of the system but addi tional devices must be incorporated to guarantee frost protection. Fig.9 Operating the controls 1 2 3 PN-0000289 5 Operation 16 7661618 - 1 - 04072016
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6 Settings 6.1 List of parameters 6.1.1 Reading out operating parameters Pressing the button enables you to view information about how the boil er is working. 1. Press this button for one second to view the operating mode (e.g. "t. 17" = purging in progress). 2. Press this button for one second again to view the operating sub- status or the corresponding function that is active (e.g. "u.00" = boil er in standby mode). 3. Press this button for one second again to view the operating temper ature in the heating system: The symbol followed by the temper ature in °C will flash. 4. Press this button for one second again to view the operating temper ature in the domestic water system: The symbol followed by the temperature in °C will flash. 5. Press this button for one second again to view the power level from 0 to 100: The symbol and the number relating to the level of oper ating power will flash. Press and hold the button for more than three seconds to exit this menu. 6.2 Setting the parameters 6.2.1 Setting the central heating water temperature Turn the central heating temperature setting button to adjust the central heating water temperature. See Fig. 10. Note If the central heating water temperature set point is lower than 16°C without an outside temperature sensor, the heating is switch ed off automatically. The heating starts up again only to ensure frost protection if the outside temperature sensor shows a value of less than 3°C. 6.2.2 Setting the domestic hot water temperature Turn the domestic hot water temperature setting button to adjust the tem perature. See Fig. 11. Fig.10 Setting the central heating PN-0000291 Fig.11 Setting the domestic hot water tem perature PN-0000292 6 Settings 7661618 - 1 - 04072016 17
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7 Maintenance 7.1 General The boiler does not require any special maintenance. However, the boiler must be serviced annually in accordance with the Installation and Service Manual and the relevant section of the Benchmark Service Record com pleted in order to maintain the warranty. Note Taking out a maintenance contract is recommended. Caution Maintenance operations must be performed by a qualified compe tent person. Use only BAXI genuine spare parts. The painted panels should be wiped with a damp cloth and then dried completely. DO NOT USE ABRASIVE CLEANING AGENTS. 7.2 Maintenance instructions The central heating system should be checked regularly. Proceed as fol lows: 1. Check the water pressure in the central heating system. Note If the water pressure is lower than 0.7 bar, the system must be topped up. See Re-pressurising the system. Note If the water pressure drops below 0.5 bar the boiler will not work. 2. Check radiators for leaks and (especially in damp areas) for rust. 3. Open and close the radiator valves several times a year to ensure they can still be rotated. Caution Only a qualified installer may clean the inside of the boiler. 7.2.1 Re-pressurising the system If the water pressure is too low, the system must be re-pressurised. The normal operating water pressure is between 1 and 2 bar. If the pres sure exceeds 3 bar the safety pressure valve will operate and a fault is in dicated. Ensure that the temporary filling loop is disconnected. Contact your installer. It may be necessary to repressurise the system occasionally (when the water pressure falls below 0.7). A filling device (the filling loop) will be fitted on the system. This will be on the boiler itself, or on pipework near to the boiler. Fig.12 Water pressure bar 0 1 2 3 4 bar 0 1 2 3 4 PN-0000259 7 Maintenance 18 7661618 - 1 - 04072016
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400 series boilers are supplied with a temporary filling loop as shown. For 200 series boilers seek advice from your installer. Note If the water pressure requires regular re-pressurising a fault or leak is indicated. Seek advice from your installer. The temporary filling loop consists of two isolating taps and a separate fill ing pipe with connection fittings. Only when repressurising should the filling pipe be connected between the two taps. Ensure that the nuts on the pipe ends are tightened onto the taps. 1. Fully open one of the taps first, and then while watching the pres sure gauge, carefully open the second tap. Note The system pressure is shown at all times on the pressure gauge and can be viewed on the display when there is power to the boil er. 2. When the figures on the display or needle on the pressure gauge in dicate between 1 and 1.5 bar turn both taps off. 3. Disconnect the filling pipe from the taps (a small amount of water may be present) and remove it. Keep the pipe in a safe place for fu ture use. 4. If blanking caps are available fit them to the taps. Note Go to the "How to videos" section of the "Advice" page at www.baxi.co.uk for further details. 5. When the correct pressure is restored the boiler will reset automati cally. Fig.13 Filling loop (400 series only) PN-0000260 7 Maintenance 7661618 - 1 - 04072016 19
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7.3 Venting the installation If any air is present in the appliance or system it must be removed in order to prevent nuisance noises that may occur during heating or when drawing off hot water. Proceed as follows: 1. Open the valves of all the radiators connected to the system. 2. Set the room thermostat to the highest possible temperature and any timers to ‘ON’. 3. Wait until the radiators are warm. 4. Switch off the boiler. 5. Vent the radiators. Work from the lowest radiator in the property. 6. Open the bleed vent with the key, keeping a cloth pressed against the vent. 7. Wait until water comes out of the bleed vent and then close. Warning The CH water in the radiators will still be hot. 8. Switch the boiler on. 9. After venting, check that the water pressure in the system is still ad equate. Note If the air is difficult to remove, it is possible to manually de-aerate the boiler and system using the control panel. Press and hold the RESET button for approximately 5 seconds and release to start the process. The display will show dAF briefly and then t.17 to in dicate that the process has started. The de-aeration will last for approximately 5 minutes then the control panel will revert to its normal display. Note If the water pressure is lower than 0.7 bar, the water must be top ped up. If necessary repressurise the system (recommended pressure between 1 and 1.5 bar when cold). 10. Reset the room thermostat to the desired temperature. Fig.14 Venting the radiators 7 6 A C B 5 4 3 2 1 2 3 4 1 10 PN-0000225 7 Maintenance 20 7661618 - 1 - 04072016
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7.4 Draining the installation It may be necessary to drain the central heating system if radiators need to be replaced, if there is a major water leak or if there is a risk of freezing. Proceed as follows: 1. Open the valves of all the radiators connected to the system. 2. Switch off the boiler's electrical connection. 3. Wait approximately ten minutes, until the radiators feel cold. 4. Connect a drain hose to the lowest draining point. Place the end of the hose in a drain or at a place where drained pipe water will not cause any damage. 5. Open the central heating system fill/drain valve. Drain the installa tion. Warning The water may still be hot. 6. Close the drain valve when no more water comes from the draining point. Note After draining the system, the concentration of corrosion inhibitor and antifreeze agent may be extremely diluted - check with your installer. Fig.15 Draining the installation AD-3000730-01 5 3 2 1 2 3 4 1 4 7 Maintenance 7661618 - 1 - 04072016 21
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8 Troubleshooting 8.1 Error codes 1 Control panel 2 Main display icons 3 Example of temporary error code (Low water pressure) 4 Example of permanent error code (Low water pressure) 5 Example of typical display after a successful RESET In the unlikely event of an error occurring the display will show either a flashing triangle, or a flashing triangle with RESET. The display will also flash and show the error code (see Error Code tables). A warning triangle indicates a temporary fault. (3) A warning triangle with RESET indicates a permanent fault. (4) A temporary fault is indicated by an ‘H’ followed by a two-digit code num ber (e.g. .02). This code flashes and alternates with a second two-digit code (e.g. .06) to indicate the specific fault. (3) A temporary fault prevents the boiler operating but will automatically reset once the cause of the fault has been resolved. Tab.9 Temporary error code descriptions Error code Description of fault H01 00 Temporary loss of communication between the gas valve and boiler PCB H01 05 Maximum difference between flow and return temperature reached H01 08 Flow temperature increasing too quickly in heating mode H01 14 Maximum flow temperature value reached H01 18 No circulation of water in the system H02 06 Low water pressure in the heating circuit H03 02 Temporary loss of flame A permanent fault ‘Lock out’ is indicated by an ‘E’ followed by a two-digit code number (e.g. .02). This code flashes and alternates with a second two-digit code (e.g. .07) to indicate the specific fault (4) A permanent fault prevents the boiler operating and will not automatically reset. Once the fault condition has been rectified the RESET button must be pressed for at least 3 seconds to restart the boiler. If the error cannot be reset, or it frequently re-occurs, please contact your Installer, Annual Service Provider or Baxi Customer Support . You can contact Baxi Customer Support on 0344 871 1545. When contacting Baxi Customer Support it will be useful to have the ‘Benchmark Checklist’ at the back of the Installation & Service Manual to hand as it includes details relevant to the boiler and installation. Tab.10 Permanent error code descriptions Error code Description of fault E04 01 E04 02 Flow temperature sensor fault E00 04 E00 05 Return temperature sensor fault E04 04 E04 05 Flue temperature sensor fault E01 11 E04 13 Fan fault E02 07 Low water pressure Fig.16 Display errors PN-0000271 1 2 3 4 5 8 Troubleshooting 22 7661618 - 1 - 04072016
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Error code Description of fault E01 17 No water circulation E04 10 Ignition failure after 5 attempts E01 04 Loss of flame detected 5 times in 24 hours E04 00 E04 17 Gas valve fault E04 08 Maximum safety temperature reached E02 47 Connection with external device failed E02 48 Configuration with external device failed Note If a different error code from those described in the error code ta ble appears on the display contact Baxi Customer Support on 0344 871 1545. 8.2 Fault finding Tab.11 Problems and solutions Problem Possible causes Solution There is no domestic hot wa ter. The boiler is not working. Check that the boiler is being supplied with power. Check fuses and the switches. Check whether the gas isolation cock is properly open. If the property has a prepayment meter ensure it has sufficient credit. The DHW function is switched off. Activate the DHW mode. The water pressure is too low (< 0.5 bar). Re-pressurise the system. Insufficient flow. Flow must be at least 2.5 litres per minute. The radiators are cold. The temperature set point for the heating is too low. Increase the value with the CH temperature knob or if a room thermostat is connected, increase the temperature on the room thermostat. The heating mode is deactivated. Activate the heating mode. The radiator valves are not open. Open the valves of all radiators connected to the system. The boiler is not working. Check that the boiler is being supplied with power. Check fuses and switches. Check whether the gas isolation cock is properly open. If the property has a prepayment meter ensure it has sufficient credit. The water pressure is too low (< 0.5 bar). Re-pressurise the system. 8 Troubleshooting 7661618 - 1 - 04072016 23
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Problem Possible causes Solution The boiler is not working. The temperature set point for the heating is too low. Increase the value with the CH temperature knob or if a room thermostat is connected, increase the temperature on the room thermostat. No demand for heating. Ensure that timers & thermostats are calling for heat. No power supply. Check that the boiler is being supplied with power. Check the fuses and switches. The water pressure is too low (< 0.5 bar). Re-pressurise the system. The boiler is indicating an error. Press the Reset button. Correct the error, if possible. The gas pressure is too low. Check whether the gas isolation cock is fully open. Open the gas isolation cock. Condensate drain blocked. Check drain, especially any external runs in freez ing temperatures. If the boiler is not working also check section "Operation checking proce dure and basic fault identification" or contact your Installer. 8 Troubleshooting 24 7661618 - 1 - 04072016
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9 Decommissioning 9.1 Decommissioning procedure Caution Only qualified persons are authorised to work on the appliance and system to decommission. If your boiler needs to be decommissioned either temporarily or perma nently the following should be performed: 1. Switch off the boiler. 2. Switch off the boiler’s electrical connection. 3. Close the gas isolation tap. 4. Drain the central heating system. Seek the advice of your installer. 9 Decommissioning 7661618 - 1 - 04072016 25
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10 Disposal 10.1 Disposal and recycling Caution Removal and disposal of the boiler must be carried out by a quali fied person in accordance with local and national regulations. 10 Disposal 26 7661618 - 1 - 04072016
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11 Environmental 11.1 Energy saving Tips on saving energy: Do not cover radiators. Do not hang curtains in front of radiators. Install reflective panels behind the radiators to prevent heat loss. Insulate the pipes in rooms that are not heated (cellars and lofts). Install loft insulation & double glazing. Use draught excluders where necessary. Upgrade any older boiler external controls. Turn down room thermostats by 1°. Turn off radiators in rooms not in use. Do not run hot (or cold) water pointlessly. Fit a water-saving shower head to save up to 40 % energy. Take showers rather than baths. A bath consumes twice as much water and energy. 11.2 Room thermostats and settings Various models of room thermostat are available. The thermostat type and setting affect the total energy consumption. A few tips: A modulating thermostat in combination with thermostatic radiator valves saves energy and offers considerable comfort. This combination gives you flexibility with the temperatures. Do not fit thermostatic radiator valves in the room in which the room thermostat is installed. Completely closing and opening thermostatic valve radiators causes un desirable temperature fluctuations. Open and close thermostatic valves in small steps. Lower the thermostat to around 20°C. This reduces heating costs and energy consumption. Lower the room thermostat temperature temporarily if opening windows to air the rooms. If you are using an ON/OFF type thermostat, reduce the water tempera ture value in summer (e.g. 60°C in summer and 80°C in winter). When setting an hourly programmable thermostat, consider days when you are absent or on holiday. Electricity production and energy savings reach their optimum level with a programmed and activated timer pro gramme. 11 Environmental 7661618 - 1 - 04072016 27
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12 Warranty 12.1 General To make sure your boiler warranty is activated and maintained, it is essen tial that the: 1. Benchmark checklist is completed by your installer 2. Warranty is registered within 30 days 3. Boiler has an annual service Please note that failure to adhere to terms and conditions will invalidate your warranty. 12.2 Standard warranty terms and conditions Warranty registration, service & repair For full terms and conditions, visit www.baxi.co.uk/terms. Benchmark checklist The Benchmark Checklist will be completed by your installer and records that the boiler has been installed and commissioned correctly. It can be found at the back of the installation and service manual and should be kept in a safe place for the life of the boiler. We will check that the Bench mark Checklist has been completed on an in-warranty visit. Ways to register your warranty If your boiler is eligible for an extended warranty, your installer may regis ter the product on your behalf and provide you with the relevant documen tation. Please check with your installer. Should this not be the case, you can register your warranty online at www.baxi.co.uk/registration To activate a standard two year warranty, please use one of the following methods: Freephone 0800 013 7989 or Visit the website www.baxi.co.uk and go to Warranty Registration. Annual service A service must be completed every 12 months from the date of installation to maintain your warranty. This service must be completed by one of the following: A Gas Safe registered installer/engineer Baxi Customer Support; call us 0344 871 1545 Please make sure that your engineer has logged the service information at the back of the installation and service manual. You will be asked for your service history on any in-warranty repair visit. If you experience a problem with your boiler For any in or out of warranty repair, Baxi Customer Support is on hand to help you. Call our award-winning team to arrange for one of our nation wide team of Gas Safe registered engineers to visit. If your product is in warranty, everything is free of charge, subject to our warranty terms and conditions. If it is out of warranty, we can still help and offer a range of options you can choose from to suit your needs. Contact Baxi Customer Support 0344 871 1545 Opening hours Monday - Friday, 8.00am - 6.00pm Weekends and Bank Holidays, 8.30am - 2.00pm Please note calls may be recorded for training and monitoring purposes. When contacting Baxi Customer Support, please have the following infor mation to hand: 12 Warranty 28 7661618 - 1 - 04072016
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Boiler serial number. See Section 4.1 for details. Proof of purchase if you do not have the boiler serial Please note that for in-warranty repairs, our engineers will ask to see your service history record, completed Benchmark Checklist and details of your installer. These can all be found in the Installation and Service manual. 12 Warranty 7661618 - 1 - 04072016 29
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13 Appendix 13.1 Product fiche - Combination boilers Tab.12 Product fiche for combination boilers Baxi Combi 224 228 424 428 Space heating - Temperature application Medium Medium Medium Medium Water heating - Declared load profile XL XL XL XL Seasonal space heating energy efficiency class A A A A Water heating energy efficiency class A A A A Rated heat output (Prated or Psup) kW 20 24 20 24 Space heating - Annual energy consumption GJ 62 74 62 74 Water heating - Annual energy consumption kWh(1) GJ(2) 33 17 33 17 33 17 33 17 Seasonal space heating energy efficiency % 93 93 93 93 Water heating energy efficiency % 86 85 86 85 Sound power level LWA indoors dB 48 50 48 50 (1) Electricity (2) Fuel See For specific precautions about assembling, installing and main taining: Safety, page 5 13 Appendix 30 7661618 - 1 - 04072016
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13.2 Package fiche - boilers Fig.17 Package fiche for boilers indicating the space heating energy efficiency of the package AD-3000743-01 % 1 ‘I’ 2 % + 3 % ( - ‘I’ ) x 0.1 = ± 4 % (‘III’ x + ‘IV’ x ) x 0.9 x ( /100) x = + (1) A* = 0.95, A = 0.91, B = 0.86, C = 0.83, D - G = 0.81 5 % ( - ‘I’ ) x ‘II’ = + 6 % 0.5 x 0.5 x = - 5 4 <30% G F E D C B A A + A ++ A +++ % + (50 x ‘II’) = 7 7 % from fi che of solar device Solar contribution AND Supplementary heat pump Solar contribution The energy effi ciency of the package of products provided for in this fi che may not correspond to its actual energy effi ciency once installed in a building, as this effi ciency is infl uenced by further factors such as heat loss in the distribution system and the dimensioning of the products in relation to building size and characteristics. Boiler and supplementary heat pump installed with low temperature heat emitters at 35°C ? Seasonal space heating energy effi ciency class of package Seasonal space heating energy effi ciency of package OR Seasonal space heating energy effi ciency (in %) Supplementary heat pump Tank rating Collector effi ciency (in %) Tank volume (in m³) Collector size (in m²) Seasonal space heating energy effi ciency (in %) Supplementary boiler Class I = 1%, Class II = 2%, Class III = 1.5%, Class IV = 2%, Class V = 3%, Class VI = 4%, Class VII = 3.5%, Class VIII = 5% Temperature control Seasonal space heating energy effi ciency of boiler (1) If tank rating is above A, use 0.95 select smaller value from fi che of heat pump from fi che of heat pump from fi che of boiler from fi che of temperature control I The value of the seasonal space heating energy efficiency of the preferential space heater, expressed in %. 13 Appendix 7661618 - 1 - 04072016 31
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II The factor for weighting the heat output of preferential and supple mentary heaters of a package as set out in the following table. III The value of the mathematical expression: 294/(11 · Prated), whereby ‘Prated’ is related to the preferential space heater. IV The value of the mathematical expression 115/(11 · Prated), whereby ‘Prated’ is related to the preferential space heater. Tab.13 Weighting of boilers Psup / (Prated + Psup)(1)(2) II, package without hot water storage tank II, package with hot water storage tank 0 0 0 0.1 0.3 0.37 0.2 0.55 0.70 0.3 0.75 0.85 0.4 0.85 0.94 0.5 0.95 0.98 0.6 0.98 1.00 ≥ 0.7 1.00 1.00 (1) The intermediate values are calculated by linear interpolation between the two adjacent values. (2) Prated is related to the preferential space heater or combination heater. Tab.14 Package efficiency Baxi Combi 224 228 424 428 Temperature control X % Temperature control Y % 13 Appendix 32 7661618 - 1 - 04072016
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13.3 Package fiche - Combination heaters (boiler or heat pumps) Fig.18 Package fiche for combination heaters (boilers or heat pumps) indicating the water heating energy efficiency of the package AD-3000747-01 % 1 ‘I’ 2 % (1.1 x ‘I’ - 10%) x ‘II’ - - ‘I’ = + ‘III’ <28% XXL XL L M G F E D C B A A + A ++ A +++ 3 % % + 0.4 x = 2 3 % - 0.2 x = 2 3 The energy effi ciency of the package of products provided for in this fi che may not correspond to its actual energy effi ciency once installed in a building, as this effi ciency is infl uenced by further factors such as heat loss in the distribution system and the dimensioning of the products in relation to building size and characteristics. Water heating energy effi ciency class of package under average climate Water heating energy effi ciency of package under average climate Auxiliary electricity Solar contribution Water heating energy effi ciency of combination heater from fi che of solar device Colder: Warmer: Water heating energy effi ciency under colder and warmer climate conditions Declared load profi le: I The value of the water heating energy efficiency of the combination heater, expressed in %. II The value of the mathematical expression (220 · Qref)/Qnonsol, where Qref is taken from Regulation EU 811/2013, Annex VII Table 15 and Qnonsol from the product fiche of the solar device for the de clared load profile M, L, XL or XXL of the combination heater. III The value of the mathematical expression (Qaux · 2,5)/(220 · Qref), expressed in %, where Qaux is taken from the product fiche of the solar device and Qref from Regulation EU 811/2013, Annex VII Ta ble 15 for the declared load profile M, L, XL or XXL. 13 Appendix 7661618 - 1 - 04072016 33
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© Copyright All technical and technological information contained in these technical instructions, as well as any drawings and technical de scriptions supplied, remain our property and shall not be multiplied without our prior consent in writing. Subject to alterations.
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Baxi Customer Support 0344 871 1545 Opening hours Monday - Friday, 8.00am-6.00pm Weekends and Bank Holidays, 8.30am-2.00pm Please note calls may be recorded for training and monitoring purposes baxi.co.uk Register now to activate your warranty: www.baxi.co.uk/registration For the warranty to be maintained, please make sure... Benchmark checklist is completed Warranty is registered within 30 days The boiler has an annual service 1 2 3 For full terms and conditions, visit www.baxi.co.uk/terms. Failure to adhere to terms and conditions will void your manufacturer’s warranty. Baxi Brooks House, Coventry Road, Warwick, CV34 4LL Please ensure the boiler is installed in accordance with these installation instructions and that you adhere to the Building Regulations. e&oe All descriptions and illustrations provided in this document have been carefully prepared but we reserve the right to make changes and improvements in our products which may affect the accuracy of the information contained in this leaflet. All goods are sold subject to our standard Conditions of Sale which are available on request. 7661618 - 1 - 04072016
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