Set Appliance State:
Gas Off
| Isolate Mains Power to appliance as per TOPs P4 |
CH Demand
Attach a pressure gauge to the inlet pressure test point
Gas On
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Observation:
Allow boiler to begin ignition sequence.
Does the inlet pressure remain satisfactory throughout?
Note:
1. When pressure gauge is removed the pressure test point should be tightened and checked for gas tightness.
2. Refer to TOPs for more information on acceptable inlet pressures.
3. Gas valve electrical connections may differ in appearance but test remains the same.
Does the inlet pressure remain satisfactory throughout?
Note:
1. When pressure gauge is removed the pressure test point should be tightened and checked for gas tightness.
2. Refer to TOPs for more information on acceptable inlet pressures.
3. Gas valve electrical connections may differ in appearance but test remains the same.
Isolate as per TOPs P4
and refit as necessary