Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Turn Hot Water Tap On
Attach U-gauge to gas valve outlet pressure test point
Remove connector from modulating solenoid (blue wires)
Boiler ON/OFF switch ON
Remove connector from modulating solenoid (blue wires)
Boiler ON/OFF switch ON
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Measurement:
Allow boiler to commence its ignition sequence and ignite.
Observe the U-gauge.
Does burner run at low gas pressure, approximately 1.0mb ?
Note:
When U-gauge is removed pressure test point should be tightened
& checked for gas tightness.
Observe the U-gauge.
Does burner run at low gas pressure, approximately 1.0mb ?
Note:
When U-gauge is removed pressure test point should be tightened
& checked for gas tightness.
Isolate as per TOPs P4
and refit as necessary