Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
CH Demand
Attach temperature clamp to flow pipe on left hand side of boiler
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Observation:
Allow the boiler to ignite and run on central heating operation.
Turn the CH temperature control to the "e" position - approximately 65°C.
If the flow temperature is already at 65°C or above the boiler should either maintain flow temperature or shut down, if flow temperature is below 55°C the boiler should continue to increase flow temperature to approximately 65°C then either maintain the flow temperature or shut down.
Notes:
1. To reduce the time taken for this test, reduce the heating circuit by turning off some radiators.
2. If weather compensation is fitted then modulation temperature may differ, isolate and disconnect for duration of test if necessary.
Turn the CH temperature control to the "e" position - approximately 65°C.
If the flow temperature is already at 65°C or above the boiler should either maintain flow temperature or shut down, if flow temperature is below 55°C the boiler should continue to increase flow temperature to approximately 65°C then either maintain the flow temperature or shut down.
Notes:
1. To reduce the time taken for this test, reduce the heating circuit by turning off some radiators.
2. If weather compensation is fitted then modulation temperature may differ, isolate and disconnect for duration of test if necessary.
Isolate as per TOPs P4
and refit as necessary