Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Turn Hot Water Tap On
Selector switch to hot water
DHW temperature selector to maximum
Attach a pressure gauge to the burner pressure test point
Set the DHW flow rate at the tap to approximately 4.5- 5.0 l/min
DHW temperature selector to maximum
Attach a pressure gauge to the burner pressure test point
Set the DHW flow rate at the tap to approximately 4.5- 5.0 l/min
| WARNING! Mains voltage is expected during test, follow TOPs P4 live testing procedure |
Observation:
Allow boiler to ignite and heat the DHW to approximately 55º C.
Does the burner pressure reduce as the water temperature becomes satisfied and is the DHW temperature maintained at approximately 55º C?
Note:
When pressure gauge is removed the pressure test point should be tightened and checked for gas tightness.
Does the burner pressure reduce as the water temperature becomes satisfied and is the DHW temperature maintained at approximately 55º C?
Note:
When pressure gauge is removed the pressure test point should be tightened and checked for gas tightness.
Isolate as per TOPs P4
and refit as necessary