Set Appliance State:
Gas Off
Turn Hot Water Tap On
Isolate Mains Power to appliance as per TOPs P4
Attach pressure gauge to gas valve inlet pressure test point
Attach pressure gauge to gas valve inlet pressure test point
Gas On
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Measurement:
Reset lockout as necessary.
Allow fan to start and ignition sequence to run.
Observe pressure gauge. Does the inlet pressure remain constant at approximately 20 mb?
Note:
When pressure gauge is removed pressure test point should be tightened and checked for gas soundness.
Allow fan to start and ignition sequence to run.
Observe pressure gauge. Does the inlet pressure remain constant at approximately 20 mb?
Note:
When pressure gauge is removed pressure test point should be tightened and checked for gas soundness.
Isolate as per TOPs P4
and refit as necessary