Baxi Combi 825 User Manual
Baxi Combi 825 User Manual

Baxi Combi 825 User Manual

High efficiency wall hung condensing gas boiler

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Please keep these instructions in a safe place.
If you move house please hand them over to the next occupier.

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Questions and answers

Shaun Ottmann
April 5, 2025

Can you turn up pump speed on 825 combi

1 comments:
Mr. Anderson
April 5, 2025

Yes, the pump speed on a Baxi Combi 825 can be adjusted. The pump operates in modulating mode during heating (from 85% to 100%) and at 100% in DHW (domestic hot water) mode. Adjustments can be made through the installer settings menu. Access requires entering code 0012, then selecting and modifying the desired setting using the control knob.

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Summary of Contents for Baxi Combi 825

  • Page 1 Please keep these instructions in a safe place. If you move house please hand them over to the next occupier.
  • Page 5 PN-0000367...
  • Page 11 The clearances shown in the diagram are minimum requirements to allow for case removal, spanner access and air movement. These should be observed at all times and kept clear of obstructions. PN-0000605...
  • Page 12 PN-0000606 Reset PN-0000607...
  • Page 13 PN-0000336...
  • Page 14 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 operating (e.g. fire, Temperature cooker). If the property has a prepayment meter ensure it has...
  • Page 15 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 as described in Maintenance Turn Room Thermostat...
  • Page 16 Reset PN-0000636 Reset...
  • Page 18 PN-0000641 PN-0000635...
  • Page 19 PN-0000468 Reset PN-0000608...
  • Page 20 AD-3000730-01...
  • Page 21 Reset PN-0000637 Reset...
  • Page 29 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 che of temperature control Class VII = 3.5%, Class VIII = 5% Supplementary boiler Seasonal space heating energy effi...
  • Page 31 Water heating energy effi ciency of combination heater ‘I’ Declared load profi le: Solar contribution Auxiliary electricity from fi che of solar device (1.1 x ‘I’ - 10%) x ‘II’ - ‘III’ - ‘I’ = + Water heating energy effi ciency of package under average climate Water heating energy effi...
  • 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 830Combi 836

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