© Heating and Hotwater Industry Council (HHIC)
This Commissioning Checklist is to be completed in full by the competent person who commissioned the boiler as a means of demonstrating
compliance with the appropriate Building Regulations and then handed to the customer to keep for future reference.
Failure to install and commission according to the manufacturer’s instructions and complete this Benchmark Commissioning Checklist will invalidate the
warranty. This does not affect the customer’s statutory rights.
GAS BOILER SYSTEM COMMISSIONING CHECKLIST
Customer name: Telephone number:
Address:
Boiler make and model:
Boiler serial number:
Commissioned by (PRINT NAME): Gas Safe register number:
Company name: Telephone number:
Company address:
Commissioning date:
CONTROLS (tick the appropriate boxes)
Time and temperature control to heating
Room thermostat and programmer/timer Programmable room thermostat
Load/weather compensation Optimum start control
Time and temperature control to hot water Cylinder thermostat and programmer/timer Combination Boiler
Heating zone valves Fitted Not required
Hot water zone valves Fitted Not required
Thermostatic radiator valves Fitted Not required
Automatic bypass to system Fitted Not required
Boiler interlock Provided
ALL SYSTEMS
’s instructions Yes
What system cleaner was used?
What inhibitor was used? Quantity litres
Yes No
CENTRAL HEATING MODE measure and record:
Gas rate m³/hr OR ft³/hr
Burner operating pressure (if applicable) mbar OR Gas inlet pressure mbar
°C
Central heating return temperature °C
COMBINATION BOILERS ONLY
Is the installation in a hard water area (above 200ppm)? Yes No
Yes No
DOMESTIC HOT WATER MODE Measure and Record:
Gas rate m³/hr OR ft³/hr
Burner operating pressure (at maximum rate) mbar OR Gas inlet pressure at maximum rate mbar
Cold water inlet temperature °C
Hot water has been checked at all outlets Yes Temperature °C
I/min
CONDENSING BOILERS ONLY
The condensate drain has been installed in accordance with the manufacturer’s instructions and/or BS5546/BS6798 Yes
ALL INSTALLATIONS
Record the following:
At max. rate: CO ppm AND CO/CO
²
Ratio
At min. rate: (where possible) CO ppm AND CO/CO
²
Ratio
The heating and hot water system complies with the appropriate Building Regulations Yes
The boiler and associated products have been installed and commissioned in accordance with the manufacturer’s instructions Yes
The operation of the boiler and system controls have been demonstrated to and understood by the customer Yes
The manufacturer’s literature, including Benchmark Checklist and Service Record, has been explained and left with the customer Yes
Commissioning Engineer’s Signature
Customer’s Signature
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