Set Appliance State:
CH Demand
Isolate Mains Power to appliance as per TOPs P4
Connect a U-Gauge to the Gas Valve outlet pressure point
On/Off Switch in ON position
Mode Selector Switch to Constant
Heating Thermostat to Max
Connect a U-Gauge to the Gas Valve outlet pressure point
On/Off Switch in ON position
Mode Selector Switch to Constant
Heating Thermostat to Max
| WARNING! Mains voltage is expected during test, follow TOPs P4 live testing procedure |
Measurement:
Does the U-Gauge indicate a gas rate pressure greater than 2 mbars?
ATTENTION! - If burner pressure is correct do not turn boiler off after test.
Move to next test keeping the boiler going.
NOTE:
The boiler must not be at its full operating temperature.
When pressure gauge is removed the pressure test point should be tightened and checked for gas tightness.
ATTENTION! - If burner pressure is correct do not turn boiler off after test.
Move to next test keeping the boiler going.
NOTE:
The boiler must not be at its full operating temperature.
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