Set Appliance State:
Gas Off
| Isolate Mains Power to appliance as per TOPs P4 |
Turn Hot Water Tap On
Attach U gauge to gas inlet pressure test point
Gas On
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Observation:
If required, reset boiler, press mode and ok for 2 seconds.
Allow self-check to complete and ignition sequence to commence.
Observe the U Gauge throughout the ignition cycle, during the sparking stage of the ignition sequence there should also be a noticeable dip from standing to working pressure as the gas valve opens.
Inlet pressure should remain above 17.4mb (N.G.) or 25mb (L.P.G) throughout the ignition sequence.
Allow self-check to complete and ignition sequence to commence.
Observe the U Gauge throughout the ignition cycle, during the sparking stage of the ignition sequence there should also be a noticeable dip from standing to working pressure as the gas valve opens.
Inlet pressure should remain above 17.4mb (N.G.) or 25mb (L.P.G) throughout the ignition sequence.
