Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Turn Hot Water Tap On
Selector Switch in HOT WATER position
Connect a U-Gauge to the Gas Valve outlet pressure test point
Connect a U-Gauge to the Gas Valve outlet pressure test point
| WARNING! Mains voltage is expected during test, follow TOPs P4 live testing procedure |
Measurement:
With the DHW Tap fully open does the Burner ignite and operate at its maximum gas pressure of approximately 15.3 mb (+/- 0.5 mb)?
Note: When U-gauge is removed pressure test point should be tightened & checked for gas soundness.
| Isolate Mains Power to appliance as per TOP's P4 |
Isolate as per TOPs P4
and refit as necessary