Set Appliance State:
Gas Off
Turn Hot Water Tap On
Isolate Mains Power to appliance as per TOPs P4
Mode Selector Switch to DHW position
HW Temperature Control to Max
Connect U-gauge to pressure test point on Gas Valve
Mode Selector Switch to DHW position
HW Temperature Control to Max
Connect U-gauge to pressure test point on Gas Valve
| WARNING! Mains voltage is expected during test, follow TOPs P4 live testing procedure |
Measurement:
Burner pressure should be at a maximum 11.8 mbars.
After allowing boiler to heat up for at least 1 minute, slowly reduce the HW Temperature Control setting.
Burner pressure should reduce from approximately 11.8 mbars as control is turned down.
Note:
When pressure gauge is removed the pressure test point should be tightened and checked for gas tightness.
After allowing boiler to heat up for at least 1 minute, slowly reduce the HW Temperature Control setting.
Burner pressure should reduce from approximately 11.8 mbars as control is turned down.
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