Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Turn Hot Water Tap On
Attach pressure gauge to gas valve pressure outlet test point
Disconnect one lead to the gas valve modureg coil
Disconnect one lead to the gas valve modureg coil
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Observation:
During the sparking stage of the ignition sequence, while ensuring the max adjustment nut is held in position, turn the min adjustment (inner) nut clockwise to increase the pressure and anti-clockwise to decrease the pressure until the required min pressure is achieved (see table).
Notes:
As boiler may go to lockout reset as necessary until adjustment is complete.
When pressure gauge is removed the pressure test point should
be tightened and checked for gas tightness.
Notes:
As boiler may go to lockout reset as necessary until adjustment is complete.
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