Set Appliance State:
Gas Off
| Isolate Mains Power to appliance as per TOPs P4 |
Turn Hot Water Tap On
Attach pressure gauge to fan pressure test point
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Measurement:
Measure the fan pressure as burner attempts to ignite.
Pressure will read negative and should reach -0.75 mbar or greater (e.g. -1.25mbar).
Note:
When pressure gauge is removed pressure point cap should be replaced.
Pressure will read negative and should reach -0.75 mbar or greater (e.g. -1.25mbar).
Note:
When pressure gauge is removed pressure point cap should be replaced.
Isolate as per TOPs P4
and refit as necessary