Set Appliance State:
Gas Off
| Isolate Mains Power to appliance as per TOPs P4 |
Turn Hot Water Tap On
Attach U-gauge to inlet pressure test point
Gas ON
Boiler on/off switch ON
Gas ON
Boiler on/off switch ON
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Measurement:
Allow fan to start and ignition sequence to run.
Does the U-gauge show a constant inlet pressure
of at least 18mb throughout the test?
Note:
When pressure gauge is removed the pressure test point should be tightened and checked for gas tightness.
Does the U-gauge show a constant inlet pressure
of at least 18mb throughout the test?
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