Set Appliance State:
Gas Off
CH Demand
Isolate Mains Power to appliance as per TOPs P4
Attach U-gauge to the gas valve inlet pressure test point
Boiler on/off switch ON
Attach U-gauge to the gas valve inlet pressure test point
Boiler on/off switch ON
Gas On
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Measurement:
Reset lockout as necessary.
Allow ignition sequence to commence.
Does the gas inlet pressure remain above 18 mb throughout the boiler operation?
Note:
When U-gauge is removed pressure test point should be tightened & checked for gas soundness.
Allow ignition sequence to commence.
Does the gas inlet pressure remain above 18 mb throughout the boiler operation?
Note:
When U-gauge is removed pressure test point should be tightened & checked for gas soundness.
Isolate as per TOPs P4
and refit as necessary