Set Appliance State:
Gas Off
CH Demand
Isolate Mains Power to appliance as per TOPs P4
Attach pressure gauge to inlet pressure test point
Boiler On/Off Switch On
Attach pressure gauge to inlet pressure test point
Boiler On/Off Switch On
Gas On
| WARNING! Mains voltage is expected during test, follow TOPs P4 live testing procedure |
Measurement:
Reset lockout as necessary.
Allow fan to run and ignition sequence to commence.
Does the pressure gauge show a constant inlet pressure of at least 20 mb throughout the sequence?
Note:
When pressure gauge is removed pressure test point should be tightened & checked for gas soundness.
Allow fan to run and ignition sequence to commence.
Does the pressure gauge show a constant inlet pressure of at least 20 mb throughout the sequence?
Note:
When pressure gauge is removed pressure test point should be tightened & checked for gas soundness.
Isolate as per TOPs P4
and refit as necessary