Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
CH Demand
Attach temperature probes as indicated by the red arrows
CH thermostat to MAX
CH thermostat to MAX
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Observation:
Allow burner to ignite and CH to operate and reach a reasonable
operating temperature, approximately 55°C.
Measure the temperature differential across the primary heat exchanger.
Expect a differential of approximately 25°C or less.
Note:
1. Initial temperature differential may be greater than 25°C when system is heated from cold, but should start to reduce as the return temperature rises.
2. To reduce the time for the test the heating load can be reduced by turning off some radiators.
operating temperature, approximately 55°C.
Measure the temperature differential across the primary heat exchanger.
Expect a differential of approximately 25°C or less.
Note:
1. Initial temperature differential may be greater than 25°C when system is heated from cold, but should start to reduce as the return temperature rises.
2. To reduce the time for the test the heating load can be reduced by turning off some radiators.
