Set Appliance State:
Mains Power Off
CH Demand
Boiler Operating Switch / Programmer set to HEATING and WATER
Boiler Temperature Control in max position
Boiler Temperature Control in max position
Gas On
| WARNING! Mains voltage is expected during test, follow TOPs P4 live testing procedure |
Observation:
Operate the boiler in CH mode.
Decrease the boiler temperature control setting until the burner modulates down and goes out indicating boiler temperature has been reached.
Increase the temperature control setting to max position.
There should be a delay of between 1-2 minutes before the burner re-ignites.
Note:
It may be necessary to reduce heating load by turning off some radiators to reduce time taken for this test.
Decrease the boiler temperature control setting until the burner modulates down and goes out indicating boiler temperature has been reached.
Increase the temperature control setting to max position.
There should be a delay of between 1-2 minutes before the burner re-ignites.
Note:
It may be necessary to reduce heating load by turning off some radiators to reduce time taken for this test.
