Set Appliance State:
Gas Off
| Isolate Mains Power to appliance as per TOPs P4 |
CH Demand
Attach U gauge to inlet pressure test point
Ensure no other gas appliances are in operation
Ensure no other gas appliances are in operation
Gas On
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Observation:
Allow the appliance to run in CH mode and the burner to ignite and establish.
Monitor the U gauge and set the boiler CH thermostat to off (this ends then demand)
The gauge should return to standing pressure within a couple of seconds of the demand ending.
Note:
When pressure gauge is removed the pressure test point should be tightened and checked for gas tightness.
Monitor the U gauge and set the boiler CH thermostat to off (this ends then demand)
The gauge should return to standing pressure within a couple of seconds of the demand ending.
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