Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
CH Demand
Attach a U-gauge to the gas valve burner pressure test point
Disconnect one the lead from the modulating
solenoid (blue wires) and make safe
Disconnect one the lead from the modulating
solenoid (blue wires) and make safe
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Measurement:
Does the burner light at minimum pressure (refer to table)
Note:
When U-gauge is removed pressure test point
should be tightened & checked for gas soundness.
Note:
When U-gauge is removed pressure test point
should be tightened & checked for gas soundness.
Isolate as per TOPs P4
and refit as necessary