Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
CH Demand
Attach temperature clamps to the flow and return pipes
(as indicated by the red arrows)
Boiler CH thermostat set to MAX
Note:
Ensure a good connection is made with the flow & return pipes
or misdiagnosis will occur
(as indicated by the red arrows)
Boiler CH thermostat set to MAX
Note:
Ensure a good connection is made with the flow & return pipes
or misdiagnosis will occur
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Observation:
Measure the differential as the boiler temperature reaches approximately 55°C
Expected differential approximately 22°C or less.
Note:
To reduce the time taken for this test some radiators could be turned off temporarily.
Expected differential approximately 22°C or less.
Note:
To reduce the time taken for this test some radiators could be turned off temporarily.
