Baxi Combi 630 User Manual

Baxi Combi 630 User Manual

High efficiency wall hung condensing gas boiler

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United Kingdom
en
User Guide
High Efficiency Wall Hung Condensing Gas Boiler
Baxi Combi
624 - 630 - 636
624 LPG - 630 LPG
Please keep these instructions in a safe place.
If you move house please hand them over to the next occupier.

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Do you have a question about the Combi 630 and is the answer not in the manual?

Questions and answers

GRAHAM TOREVELL
March 22, 2025

Code 133 what does it mean interrupted suppy do I need bigger volume regulator

1 comments:
Mr. Anderson
March 22, 2025

Code 133 on a Baxi Combi boiler indicates that the gas supply has been interrupted, ignition has failed, or the flame has not been detected. Whether you need a bigger volume regulator depends on your gas supply. You should check if the gas pressure and flow meet the boiler's requirements. If the gas supply is insufficient, a larger regulator may be needed.

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Summary of Contents for Baxi Combi 630

  • Page 1 United Kingdom User Guide High Efficiency Wall Hung Condensing Gas Boiler Baxi Combi 624 - 630 - 636 624 LPG - 630 LPG Please keep these instructions in a safe place. If you move house please hand them over to the next occupier.
  • Page 2 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.
  • Page 3: Table Of Contents

    Contents Contents Safety ................... . 5 General safety instructions .
  • Page 4 Contents 11.1 General ..................26 11.2 Standard warranty terms and conditions .
  • Page 5: Safety

    90° ( turn) downwards. 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.
  • Page 6: Recommendations

    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 regular servicing to optimise safety, efficiency and performance.
  • Page 7: Installer's Liability

    1 Safety 1.3.2 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.
  • Page 8: About This Manual

    You can check your engineer is registered by telephoning 0800 408 5500 or online at www.gassaferegister.co.uk This manual is intended for the user of the Baxi Combi boiler. If the appliance 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.
  • Page 9 2 About this manual Domestic hot water PCB for managing burner operation Condensing output Safety PCB...
  • Page 10: Technical Specifications

    CE certificate number 0085CQ0192 NOx class Boiler type Technical data 3.2.1 Technical information Tab.2 General Baxi Combi Gas council numbers 47 077 28 47 077 29 47 077 30 Gas council numbers (LPG versions) 47 077 33 47 077 32 Tab.3...
  • Page 11: Dimensions And Connections/Clearances

    3 Technical specifications Baxi Combi Dimensions (height/width/depth) H 700/W 390/D 285 Clearances (above/below casing) 178 / 200 front (for servicing)/(in operation) 450 / 5 side (left hand/right hand) 5 / 5 These are MINIMUM recommended dimensions. Greater clearance will aid installation and maintenance.
  • Page 12: Description Of The Product

    Description of the product General description Fig.3 Information label The Baxi Combi range of fully automatic gas fired wall hung condensing combination boilers are room sealed and fan assisted, and will serve central heating and mains fed domestic hot water. Information label Tab.7...
  • Page 13: Accessories And Options

    The table shows the accessories available for this boiler range. Tab.8 Optional accessories Part number Accessory 7212438 Baxi single channel wired programmable room thermostat 720971601 Baxi room thermostat 720330001 Baxi wired weather sensor 720648301 Multifit condensate & PRV combined pump...
  • Page 14: Operation

    5 Operation Operation Start-up 5.1.1 Operation checking procedure & basic fault identification Fig.6 Start-up and checking START Is there electricity to the Is the Burner Flame Make sure the gas boiler ? Is the display lit ? showing. supply is turned ON and check if other gas appliances are Boiler...
  • Page 15 5 Operation Fig.7 Start-up and checking (continued) Is the Central Heating Is the Room Thermostat Is the Timer ON and System Pressure (if fitted) set high enough ? calling for heat ? between 1.0 and 2.5 bar ? Typical examples of external timer If the reading falls below 1.0 bar repressurise the system...
  • Page 16: Use Of The Control Panel

    5 Operation Use of the control panel 5.2.1 Using the control panel Fig.8 Using the control panel Important OpenTherm controller.Your installer will advise you when this type of control is connected to the boiler. If so, any change to the boiler settings (e.g.
  • Page 17: Maintenance

    Taking out a maintenance contract is recommended. Caution Maintenance operations must be performed by a qualified competent 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. Maintenance instructions The central heating system should be checked regularly.
  • Page 18 PN-0000641 Fig.10 "Easy-Fill" - operate green lever as The Baxi 600 Combi is supplied with a special device, the "Easy-Fill" shown to add water permanent filling link. 1. Operate the spring loaded green lever to add water to the system.
  • Page 19: Venting The Installation

    6 Maintenance Venting the installation Fig.11 Venting the radiators 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.
  • Page 20: Draining The Installation

    6 Maintenance Caution If the system is drained (even partly, when replacing a radiator for example) the de-aeration function must be repeated. Also the inhibitor concentration must be checked and replenished if necessary. Draining the installation Fig.13 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.
  • Page 21: Troubleshooting

    The spanner symbol appears it cannot be reset by the user. Please contact your Installer, Annual Service Provider or Baxi Customer Support. You can contact Baxi Customer Support on 0344 871 1545. fault errors can be reset by pressing the button.
  • Page 22: Fault Finding

    7 Troubleshooting Fault finding Tab.10 Problems and solutions Problem Possible causes Solution Check that the boiler is being supplied with power. Check fuses and the switches. Check whether the gas isolation cock is properly The boiler is not working. open. There is no domestic hot wa­...
  • Page 23: Decommissioning

    8 Decommissioning Decommissioning 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 permanently the following should be performed: 1. Switch off the boiler’s electrical connection. 2.
  • Page 24: Disposal

    9 Disposal Disposal Disposal and recycling Caution Removal and disposal of the boiler must be carried out by a qualified person in accordance with local and national regulations.
  • Page 25: 10 Environmental

    10 Environmental 10 Environmental 10.1 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 &...
  • Page 26: 11 Warranty

    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 nationwide team of Gas Safe registered engineers to visit.
  • Page 27 11 Warranty Proof of purchase if you do not have the boiler serial number 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.
  • Page 28: 12 Appendix

    12 Appendix 12 Appendix 12.1 Product fiche - Combination boilers Tab.11 Product fiche for combination boilers Baxi Combi Space heating - Temperature application Medium Medium Medium Water heating - Declared load profile Seasonal space heating energy efficiency class Water heating energy efficiency class...
  • Page 29: Package Fiche - Boilers

    12 Appendix 12.2 Package fiche - boilers Fig.15 Package fiche for boilers indicating the space heating energy efficiency of the package Seasonal space heating energy effi ciency of boiler ‘I’ Temperature control Class I = 1%, Class II = 2%, Class III = 1.5%, Class IV = 2%, Class V = 3%, Class VI = 4%, from fi...
  • Page 30 ≥ 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.13 Package efficiency Baxi Combi Temperature control X Temperature control Y...
  • Page 31: Package Fiche - Combination Heaters

    12 Appendix 12.3 Package fiche - Combination heaters (boilers or heat pumps Fig.16 Package fiche for combination heaters (boilers or heat pumps) indicating the water heating energy efficiency of the package Water heating energy effi ciency of combination heater ‘I’ Declared load profi...
  • Page 32 12 Appendix...
  • Page 33 12 Appendix...
  • Page 34 12 Appendix...
  • Page 35 © 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.
  • Page 36 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 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,...

This manual is also suitable for:

Combi 624Combi 636Combi 624 lpgCombi 630 lpg

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