Set Appliance State:
Gas Off
Isolate Mains Power to appliance as per TOPs P4
DHW Demand
DHW Selector in Maximum (+) position
CH Selector in Minimum (-) position
ON/OFF Switch in ON position
Attach U-gauge to the inlet pressure test point
DHW Demand
DHW Selector in Maximum (+) position
CH Selector in Minimum (-) position
ON/OFF Switch in ON position
Attach U-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.
Does the pressure gauge show an acceptable minimum
gas inlet pressure of at least 18mb throughout its operation ?
Note:
When pressure gauge is removed the pressure test point should be tightened and checked for gas tightness.
Does the pressure gauge show an acceptable minimum
gas inlet pressure of at least 18mb throughout its operation ?
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