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
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
pressure test point and note the gas pressure.
pressure test point and note the gas pressure.
Gas On
| WARNING! Mains voltage is expected during test, follow TOPs P4 live testing procedure |
Observation:
Ensure no other gas appliances are in use.
Allow the ignition sequence to commence.
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 standing pressure should be seen as the gas valve opens.
Allow the ignition sequence to commence.
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 standing pressure should be seen as the gas valve opens.
