Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
CH Demand
User display control set to DHW and CH
Attach temperature probes as indicated by the red arrows
Attach temperature probes as indicated by the red arrows
Gas On
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Measurement:
Measure the temperature differential with the boiler running in central heating mode.
Expected differential 10-20°C
Note:
For clarity the test is shown with the fan and burner removed but the test is carried out with these in place.
Expected differential 10-20°C
Note:
For clarity the test is shown with the fan and burner removed but the test is carried out with these in place.
Isolate as per TOPs P4
and refit as necessary