Set Appliance State:

Mains Power Off
CH Demand
CH temperature control to max
ON/OFF switch ON
Prepare the boiler for a combustion check as per manufacturer’s instructions (refer to adapt for guidance)
Note:
A calibrated combustion analyser must be used for this test.
WARNING! - Mains voltage is expected during test follow
TOPs P4 live testing procedure
Mains Power On

Observation:

Carry out a combustion check as per manufacturer’s instructions.
(refer to adapt for guidance).