Set Appliance State:
Gas Off
| Isolate Mains Power to appliance as per TOPs P4 |
Turn Hot Water Tap On
Attach a U-gauge to the gas valve inlet pressure test point
Gas On
| WARNING! Mains voltage is expected during test, follow TOPs P4 live testing procedure |
Measurement:
Allow fan to run and ignition sequence to commence.
Does U-gauge show a constant pressure of at least 18 mbar (37 mbar for LPG) throughout the operation?
Note:
When pressure gauge is removed the pressure test point should be tightened and checked for gas tightness.
Does U-gauge show a constant pressure of at least 18 mbar (37 mbar for LPG) throughout the operation?
Note:
When pressure gauge is removed the pressure test point should be tightened and checked for gas tightness.
Isolate as per TOPs P4
and refit as necessary