Set Appliance State:
Gas Off
| Isolate Mains Power to appliance as per TOPs P4 |
Turn Hot Water Tap On
Attach U-gauge to the gas valve inlet pressure test point
(Lower of the two ports on the right hand side by the solenoid)
(Lower of the two ports on the right hand side by the solenoid)
Gas On
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Measurement:
Allow fan to run and ignition sequence to commence.
Does the gas inlet pressure remain at least 18 mb throughout the boiler operation?
Note:
When U-gauge is removed pressure test point should be tightened & checked for gas soundness.
Does the gas inlet pressure remain at least 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