Set Appliance State:
Gas Off
| Isolate Mains Power to appliance as per TOPs P4 |
Turn Hot Water Tap On
DHW temperature control to maximum
CH temperature control to minimum
DHW temperature control to maximum
CH temperature control to minimum
Loosen the inlet test point screw (P1) and attach U-gauge to the test point
Gas On
| WARNING! Mains voltage is expected during test, follow TOPs P4 live testing procedure |
Measurement:
With the hot water tap running, does the gas inlet pressure remain above 18mb throughout the ignition sequence?
Note:
When pressure gauge is removed the pressure test point should be tightened and checked for gas tightness.
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