Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
CH Demand
Attach temperature clamp to boiler flow pipe
Attach a pressure gauge to the burner pressure test point
Turn temperature control knob to MAX (see note 1)
Attach a pressure gauge to the burner pressure test point
Turn temperature control knob to MAX (see note 1)
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Observation:
Allow burner to ignite and establish.
Monitor appliance flow temperature and burner pressure, does the burner pressure switch to minimum rate when the flow temperature reaches 55-70°C, then shut down completely at approximately 80°C?
Notes:
1. To turn the control knob above 5 (approx. 65°C) it is necessary to turn the blue Energy Saving System (ESS) screw on the knob clockwise. The knob is now free to turn to the MAX position (approx. 80°C).
2. You may wish to turn off some radiators to reduce time taken for this test.
Monitor appliance flow temperature and burner pressure, does the burner pressure switch to minimum rate when the flow temperature reaches 55-70°C, then shut down completely at approximately 80°C?
Notes:
1. To turn the control knob above 5 (approx. 65°C) it is necessary to turn the blue Energy Saving System (ESS) screw on the knob clockwise. The knob is now free to turn to the MAX position (approx. 80°C).
2. You may wish to turn off some radiators to reduce time taken for this test.
