Set Appliance State:
Gas Off
| Isolate Mains Power to appliance as per TOPs P4 |
DHW Demand
Attach U-gauge to inlet pressure test point
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Observation:
Observe U-gauge as boiler goes through its ignition sequence.
The inlet pressure should remain above a minimum of 18mb throughout and there should be a noticeable drop in the sparking stage of the sequence as the gas valve opens.
Note:
After this test remove the gauge and make sure all disturbed gas connections are checked for tightness.
The inlet pressure should remain above a minimum of 18mb throughout and there should be a noticeable drop in the sparking stage of the sequence as the gas valve opens.
Note:
After this test remove the gauge and make sure all disturbed gas connections are checked for tightness.
