Set Appliance State:
Gas Off
Set Boiler Control Thermostat to MAX position
CH Demand
Isolate Mains Power to appliance as per TOPs P4
Attach pressure gauge to inlet pressure test point
External controls calling for heat
Attach pressure gauge to inlet pressure test point
External controls calling for heat
Gas On
| WARNING! Mains voltage is expected during test, follow TOPs P4 live testing procedure |
Observation:
Allow ignition sequence to commence, sparking to occur and burner to ignite.
Does the pressure gauge show a constant inlet pressure of at least 18 mbar throughout the sequence?
Note:
When pressure gauge is removed the pressure test point should be tightened & checked for gas soundness.
Does the pressure gauge show a constant inlet pressure of at least 18 mbar throughout the sequence?
Note:
When pressure gauge is removed the pressure test point should be tightened & checked for gas soundness.
Isolate as per TOPs P4
and refit as necessary