Set Appliance State:
Gas Off
On/Off Switch OFF
CH Demand
Isolate Mains Power to appliance as per TOPs P4
Attach pressure gauge to the inlet pressure test point
Attach pressure gauge to the inlet pressure test point
Gas On
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Observation:
Boiler On/Off Switch On.
Ensure no other gas appliances are in use.
Allow the ignition sequence to commence.
A drop in the standing pressure should be seen as the gas valve opens.
Note:
1. No other gas appliances must be in use during the test. The appliance will have 5 ignition attempts approximately 5 seconds apart and gas will only pass for approximately 3 seconds on each ignition attempt.
2. When pressure gauge is removed the pressure test point should be tightened and checked for gas tightness.
Ensure no other gas appliances are in use.
Allow the ignition sequence to commence.
A drop in the standing pressure should be seen as the gas valve opens.
Note:
1. No other gas appliances must be in use during the test. The appliance will have 5 ignition attempts approximately 5 seconds apart and gas will only pass for approximately 3 seconds on each ignition attempt.
2. When pressure gauge is removed the pressure test point should be tightened and checked for gas tightness.
Isolate as per TOPs P4
and refit as necessary