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 maximum position - approximately 80°C.
If the flow temperature is already at 80°C or above the boiler should either maintain flow temperature or shut down, if flow temperature is below 80°C the boiler should continue to increase flow temperature to approximately 80°C then either maintain the flow temperature or shut down, without overheat occurring.
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 maximum temperature may differ, isolate and disconnect for duration of test if necessary.
Turn the CH temperature control to the maximum position - approximately 80°C.
If the flow temperature is already at 80°C or above the boiler should either maintain flow temperature or shut down, if flow temperature is below 80°C the boiler should continue to increase flow temperature to approximately 80°C then either maintain the flow temperature or shut down, without overheat occurring.
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 maximum temperature may differ, isolate and disconnect for duration of test if necessary.
