Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
CH Demand
Attach temperature probes as indicated by the red arrows
Gas On
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Measurement:
Allow fan to run and boiler to fire and allow system to reach a reasonable operating temperature.
Measure the temperature of the flow and return pipes close to the primary heat exchanger.
Expected differential approx 11-20 °C
Note:
For clarity the test is shown with the fan and burner removed but the test is carried out with these in place.
Click on your observation:
1. DIFFERENTIAL OK NOISE DUE TO EXCESSIVE HEAT
2.DIFFERENTIAL NOT OK NOISE LOCAL BOILING
3.DIFFERENTIAL OK SYSTEM NOISE
Measure the temperature of the flow and return pipes close to the primary heat exchanger.
Expected differential approx 11-20 °C
Note:
For clarity the test is shown with the fan and burner removed but the test is carried out with these in place.
Click on your observation:
1. DIFFERENTIAL OK NOISE DUE TO EXCESSIVE HEAT
2.DIFFERENTIAL NOT OK NOISE LOCAL BOILING
3.DIFFERENTIAL OK SYSTEM NOISE
