Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
CH Demand
Set Boiler Control Thermostat to MAX position
External controls calling for heat
Ensure boiler is cool
External controls calling for heat
Ensure boiler is cool
| WARNING! Mains voltage is expected during test, follow TOPs P4 live testing procedure |
Observation:
Reset boiler as necessary.
Does the fan run with CH demand?
Does the fan run with CH demand?