Set Appliance State:
Mains Power Off
CH Demand
Selector switch to CH - Max position
| WARNING! Mains voltage is expected during test, follow TOPs P4 live testing procedure |
Observation:
Allow boiler to fire and heat system to above 70 °C,
(maximum temperature on selector is approximately 82 °C).
Remove CH demand.
Does pump and fan overrun to dissipate heat?
Fan should overrun for approximately 35 seconds.
Pump should overrun for approximately 3 minutes.
Note:
To reduce time taken for this test you may wish turn off some radiators.
(maximum temperature on selector is approximately 82 °C).
Remove CH demand.
Does pump and fan overrun to dissipate heat?
Fan should overrun for approximately 35 seconds.
Pump should overrun for approximately 3 minutes.
Note:
To reduce time taken for this test you may wish turn off some radiators.
Isolate as per TOPs P4
and refit as necessary