Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Turn Hot Water Tap On
Gas On; Pilot On
Boiler On/Off Switch ON
CH Switch OFF
DHW Switch in INSTANT position
Remove solenoid from gas valve - do NOT disconnect the leads from the solenoid, solenoid can be stood upright on control box. The solenoid spindle should be in its retracted position
Boiler On/Off Switch ON
CH Switch OFF
DHW Switch in INSTANT position
Remove solenoid from gas valve - do NOT disconnect the leads from the solenoid, solenoid can be stood upright on control box. The solenoid spindle should be in its retracted position
| WARNING! Mains voltage is expected during test, follow TOPs P4 live testing procedure |
Observation:
The solenoid spindle should rise fully (approximately 8mm of the spindle should be visible when fully extended) with the hot water demand.
Boiler On/Off Switch OFF.
Spindle should smoothly move back to its retracted position.
Boiler On/Off Switch OFF.
Spindle should smoothly move back to its retracted position.
Isolate as per TOPs P4
and refit as necessary