Set Appliance State:
Gas Off
| Isolate Mains Power to appliance as per TOPs P4 |
DHW Demand
Attach pressure gauge to the inlet pressure test point
Gas On
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Measurement:
Allow fan to run and ignition sequence to commence and burner to ignite.
Does the pressure gauge show an inlet pressure of at least 17 mb throughout the operation?
Note:
When "U" gauge is removed the test point should be tightened and checked for gas tightness.
Does the pressure gauge show an inlet pressure of at least 17 mb throughout the operation?
Note:
When "U" gauge is removed the test point should be tightened and checked for gas tightness.
Isolate as per TOPs P4
and refit as necessary