Set Appliance State:
Gas Off
| Isolate Mains Power to appliance as per TOPs P4 |
DHW demand from programmer
DHW temperature selector to high setting
Ensure hot water storage vessel is calling for heat
DHW temperature selector to high setting
Ensure hot water storage vessel is calling for heat
Attach U-gauge to the inlet pressure test point
Gas On
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Observation:
Boiler On/Off switch On.
Reset lockout if necessary.
Allow fan to run and ignition sequence to commence.
Does the inlet pressure stay constant with a pressure of at least 16.5mb?
Note:
When pressure gauge is removed the pressure test point should be tightened and checked for gas tightness.
Reset lockout if necessary.
Allow fan to run and ignition sequence to commence.
Does the inlet pressure stay constant with a pressure of at least 16.5mb?
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