Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
CH Demand
Attach a pressure gauge to the burner pressure test point
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Observation:
Measure the burner pressure as boiler reaches
the sparking stage of the ignition sequence.
There should be a positive burner pressure that slowly
increases as the gas valve "soft light" function operates.
Does the burner pressure operate as above?
Notes:
1. Burner pressure may not reach operating pressure before boiler goes to lockout. Reset as necessary until test is complete.
2. When pressure gauge is removed the pressure test point should be tightened and checked for gas tightness.
the sparking stage of the ignition sequence.
There should be a positive burner pressure that slowly
increases as the gas valve "soft light" function operates.
Does the burner pressure operate as above?
Notes:
1. Burner pressure may not reach operating pressure before boiler goes to lockout. Reset as necessary until test is complete.
2. 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