Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
CH Demand
CH temperature control to maximum
DHW temperature control to minimum
CH temperature control to maximum
DHW temperature control to minimum
Loosen the outlet test point screw (P2) and attach U-gauge to the test point.
| WARNING! Mains voltage is expected during test, follow TOPs P4 live testing procedure |
Measurement:
Allow boiler to fire.
Does the burner pressure increase to its set pressure after approximately 90 seconds?
Does the CH system begin heating correctly?
Notes:
1. If the CH burner pressure has been set at its minimum rate, then the burner pressure will not increase.
2. When pressure gauge is removed the pressure test point should be tightened and checked for gas tightness.
Does the burner pressure increase to its set pressure after approximately 90 seconds?
Does the CH system begin heating correctly?
Notes:
1. If the CH burner pressure has been set at its minimum rate, then the burner pressure will not increase.
2. When pressure gauge is removed the pressure test point should be tightened and checked for gas tightness.
