Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Turn Hot Water Tap On
Attach U-gauge to burner pressure test point
Disconnect white wires from gas valve modureg and make safe
DHW temperature selector set to MAX
Disconnect white wires from gas valve modureg and make safe
DHW temperature selector set to MAX
Gas On
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Observation:
Allow burner to ignite and establish.
Set the minimum DHW pressure as per the table by rotating the back nut (9mm) while holding the plastic nut (7mm) in place until the correct pressure is obtained (Clockwise to increase, anticlockwise to decrease).
Notes:
Maximum pressure should be checked once adjustment is complete.
When U-gauge is removed test point should be checked for gas tightness.
For Wickes 90 use values for Finest or Finest Propane depending on gas type.
Set the minimum DHW pressure as per the table by rotating the back nut (9mm) while holding the plastic nut (7mm) in place until the correct pressure is obtained (Clockwise to increase, anticlockwise to decrease).
Notes:
Maximum pressure should be checked once adjustment is complete.
When U-gauge is removed test point should be checked for gas tightness.
For Wickes 90 use values for Finest or Finest Propane depending on gas type.
Isolate as per TOPs P4
and refit as necessary