Set Appliance State:
Turn Hot Water Tap On
Isolate Mains Power to appliance as per TOPs P4
Boiler On/Off switch On
Attach pressure gauge to gas valve outlet pressure test point
Remove connector from the modulating solenoid (blue wires)
Boiler On/Off switch On
Attach pressure gauge to gas valve outlet pressure test point
Remove connector from the modulating solenoid (blue wires)
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Observation:
Reset lockout if necessary.
Allow boiler to commence its ignition sequence and ignite.
Observe the pressure gauge, does the burner run at low gas pressure (approximately 2mb) ?
Note:
When pressure gauge is removed the pressure test point should be tightened and checked for gas tightness.
Allow boiler to commence its ignition sequence and ignite.
Observe the pressure gauge, does the burner run at low gas pressure (approximately 2mb) ?
Note:
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