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
Ensure no other gas appliances can fire during the test
Ensure no other gas appliances can fire during the test
Gas On
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Observation:
Allow fan to run and ignition sequence to commence, when the sparking occurs does the pressure gauge show a dip in the standing pressure indicating the gas valve has opened.
Note:
When "U" gauge is removed the test point should be tightened and checked for gas tightness.
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