Set Appliance State:
Isolate Mains Power to appliance as per TOPs P4
Ensure secondary heat exchanger is cool and there is a
demand for Preheat
Turn OFF the flow and return isolation valves underneath the boiler
Turn hot water tap ON
Ensure secondary heat exchanger is cool and there is a
demand for Preheat
Turn OFF the flow and return isolation valves underneath the boiler
Turn hot water tap ON
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Observation:
Allow the fan to run and the burner to ignite.
Does the preheat operation complete ?
Does the preheat operation complete ?
