Set Appliance State:
Gas Off
| Isolate Mains Power to appliance as per TOPs P4 |
Apply CH demand
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:
Allow fan to run and ignition sequence to commence.
Observe the Pressure gauge throughout the ignition phase, during the sparking stage of the ignition sequence there should be a noticeable drop from standing to working pressure as the gas valve opens.
Inlet pressure should remain above an acceptable minimum level throughout the ignition sequence.
Note.
When pressure gauge is removed the pressure test point should be tightened and checked for gas tightness.
Observe the Pressure gauge throughout the ignition phase, during the sparking stage of the ignition sequence there should be a noticeable drop from standing to working pressure as the gas valve opens.
Inlet pressure should remain above an acceptable minimum level throughout the ignition sequence.
Note.
When pressure gauge is removed the pressure test point should be tightened and checked for gas tightness.
