Set Appliance State:
Ensure the secondary heat exchanger is cool (below 40°C)
This can be done by running the DHW with the gas to the appliance off
This can be done by running the DHW with the gas to the appliance off
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Observation:
Test 1:
Measure the temperature in the middle of the secondary heat exchanger
at the front and make a note of it (as shown by the red arrow).
Test 2:
Apply a CH demand.
Allow the burner to ignite and the boiler to run on CH.
As the boiler runs on central heating, monitor the temperature of the secondary heat exchanger with a temperature probe in the same location as in test 1.
The secondary heat exchanger should remain at approximately the same temperature as measured in test 1.
Does the secondary heat exchanger remain at approximately the same temperature as in test 1?
Measure the temperature in the middle of the secondary heat exchanger
at the front and make a note of it (as shown by the red arrow).
Test 2:
Apply a CH demand.
Allow the burner to ignite and the boiler to run on CH.
As the boiler runs on central heating, monitor the temperature of the secondary heat exchanger with a temperature probe in the same location as in test 1.
The secondary heat exchanger should remain at approximately the same temperature as measured in test 1.
Does the secondary heat exchanger remain at approximately the same temperature as in test 1?
