Set Appliance State:
Mains Power Off
CH Demand
Boiler ON/OFF Switch OFF
CH Temperature Selector to Max
DHW Temperature Selector OFF
CH Temperature Selector to Max
DHW Temperature Selector OFF
| WARNING! Mains voltage is expected during test, follow TOPs P4 live testing procedure |
Measurement:
Boiler ON/OFF Switch ON.
Allow Boiler to fire and heat the System to a reasonable temperature.
Remove heating demand by turning CH Temperature Selector to minimum. Allow Burner to go out.
Turn CH Temperature Selector to Max.
Is there a delay of approximately 3 minutes before the Boiler re-ignites?
Note: It may be necessary to reduce the heating load by turning off some radiators. This will reduce the time taken for this test.
Allow Boiler to fire and heat the System to a reasonable temperature.
Remove heating demand by turning CH Temperature Selector to minimum. Allow Burner to go out.
Turn CH Temperature Selector to Max.
Is there a delay of approximately 3 minutes before the Boiler re-ignites?
Note: It may be necessary to reduce the heating load by turning off some radiators. This will reduce the time taken for this test.
Isolate as per TOPs P4
and refit as necessary