Set Appliance State:
Gas On; Pilot On
Turn Hot Water Tap On
Isolate Mains Power to appliance as per TOPs P4
Selector switch in HW position
Attach U-gauge to burner pressure test point
Selector switch in HW position
Attach U-gauge to burner pressure test point
| WARNING! Mains voltage is expected during test, follow TOPs P4 live testing procedure |
Measurement:
When Burner ignites does burner pressure increases to maximum with a DHW flow rate greater than 9 litres per minute?
Note:
When U-gauge is removed pressure point should be tightened & checked for gas soundness.
Note:
When U-gauge is removed pressure point should be tightened & checked for gas soundness.
Isolate as per TOPs P4
and refit as necessary