Set Appliance State:
Gas Off
Isolate Mains Power to appliance as per TOPs P4
DHW Demand
DHW Selector in Maximum (+) position
CH Selector in Minimum (-) position
ON/OFF Switch in ON position
Attach pressure gauge to the lower gas valve inlet test point
DHW Demand
DHW Selector in Maximum (+) position
CH Selector in Minimum (-) position
ON/OFF Switch in ON position
Attach pressure gauge to the lower gas valve inlet test point
Gas On
| WARNING! Mains voltage is expected during test, follow TOPs P4 live testing procedure |
Observation:
Allow self check to complete and ignition sequence to commence.
A drop in the gauge reading should be seen as the gas valve opens
and standing pressure changes to working pressure.
Using the viewing port on the heat exchanger observe the burner flame.
Does the burner ignite and establish for at least 5 seconds?
A drop in the gauge reading should be seen as the gas valve opens
and standing pressure changes to working pressure.
Using the viewing port on the heat exchanger observe the burner flame.
Does the burner ignite and establish for at least 5 seconds?
