Set Appliance State:
Gas Off
DHW Demand - Ensure Store is not up to Temperature
Isolate Mains Power to appliance as per TOPs P4
Attach pressure gauge to inlet pressure test point
Attach pressure gauge to inlet pressure test point
Gas On
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Measurement:
Appliance On/Off switch On.
Reset lockout as necessary.
Allow fan to run and ignition sequence to commence.
The gauge should show an inlet pressure of at least 18 mb throughout the sequence.
There should also be a noticeable drop in pressure during the sparking stage of the ignition sequence as the gas valve opens.
Note:
When pressure gauge removed test point should be tightened and checked for soundness.
Reset lockout as necessary.
Allow fan to run and ignition sequence to commence.
The gauge should show an inlet pressure of at least 18 mb throughout the sequence.
There should also be a noticeable drop in pressure during the sparking stage of the ignition sequence as the gas valve opens.
Note:
When pressure gauge removed test point should be tightened and checked for soundness.
