Set Appliance State:
CH Demand
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Observation:
Allow burner to ignite and boiler to run with a CH demand for 1 minute.
Remove CH demand.
Monitor the pump and fan after the demand has ceased.
The fan should overrun for approximately 15 seconds.
The pump should overrun as per parameter 5 (default 7 minutes).
CLICK HERE FOR INSTRUCTIONS ON CHECKING PARAMETER
Do the over runs behave as described above?
Remove CH demand.
Monitor the pump and fan after the demand has ceased.
The fan should overrun for approximately 15 seconds.
The pump should overrun as per parameter 5 (default 7 minutes).
CLICK HERE FOR INSTRUCTIONS ON CHECKING PARAMETER
Do the over runs behave as described above?
Isolate as per TOPs P4
and refit as necessary