Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Turn Hot Water Tap On
Set selector switch to ch/dhw
Dhw temperature control to max
Connect a U-gauge to the Burner Gas Pressure Test Point
Dhw temperature control to max
Connect a U-gauge to the Burner Gas Pressure Test Point
Gas On
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Observation:
Allow the boiler to execute its ignition sequence and the burner to ignite.
Does the burner pressure operate between MAX and MIN pressures as the dhw flow rate is altered via a dhw tap?
Note:
When gauge is removed pressure test point should be tightened and checked for gas tightness.
Does the burner pressure operate between MAX and MIN pressures as the dhw flow rate is altered via a dhw tap?
Note:
When gauge is removed pressure test point should be tightened and checked for gas tightness.
Isolate as per TOPs P4
and refit as necessary