Set Appliance State:
User Control to Off Position
Isolate Mains Power to appliance as per TOPs P4
Ensure DHW is calling for heat
Attach U-gauge to pressure test point (left hand side of fan)
Ensure DHW is calling for heat
Attach U-gauge to pressure test point (left hand side of fan)
Gas On
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Measurement:
User control switch to ON position.
Allow fan to run and burner to ignite.
After approximately 20 seconds does the pressure ramp up to 8 mb?
Note:
When pressure gauge is removed the pressure test point should be tightened and checked for gas tightness.
Allow fan to run and burner to ignite.
After approximately 20 seconds does the pressure ramp up to 8 mb?
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