Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Attach F.G.A unit to fan pressure test point
Ensure boiler is cool (40°C or cooler)
Boiler On/Off Switch Off
Ensure boiler is cool (40°C or cooler)
Boiler On/Off Switch Off
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Observation:
Boiler On/Off switch On, reset boiler if required.
Operate appliance at maximum output using service mode, press & hold the chimney sweep button until the display shows - -, chimney sweep is now active.
Fan pressure will be negative and should be -5.2 mbar or greater (e.g. -6.5mbar).
Note.
1. Boiler may go to lockout during test, reset as required until test complete.
2. When pressure gauge is removed pressure point cap should be replaced.
3. You have 15 minutes to complete test, after that the boiler will switch back to normal mode, to cancel chimney sweep mode press the chimney sweep button.
Operate appliance at maximum output using service mode, press & hold the chimney sweep button until the display shows - -, chimney sweep is now active.
Fan pressure will be negative and should be -5.2 mbar or greater (e.g. -6.5mbar).
Note.
1. Boiler may go to lockout during test, reset as required until test complete.
2. When pressure gauge is removed pressure point cap should be replaced.
3. You have 15 minutes to complete test, after that the boiler will switch back to normal mode, to cancel chimney sweep mode press the chimney sweep button.
Isolate as per TOPs P4
and refit as necessary