Set Appliance State:
Turn Hot Water Tap On
Isolate Mains Power to appliance as per TOPs P4
Boiler Operating Switch / Programmer set to WATER only
Connect a U-gauge to the burner pressure test point
Boiler Operating Switch / Programmer set to WATER only
Connect a U-gauge to the burner pressure test point
Gas On
| WARNING! Mains voltage is expected during test, follow TOPs P4 live testing procedure |
Measurement:
Allow the boiler to run ignition sequence and the pilot to ignite.
Does the U-gauge indicate a positive gas pressure?
Note:
When U-gauge is removed pressure test point should be tightened & checked for gas soundness.
Does the U-gauge indicate a positive gas pressure?
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