Set Appliance State:
| 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
DHW Selector in Maximum (+) position
CH Selector in Minimum (-) position
ON/OFF Switch in ON position
Gas Off
Attach pressure gauge to the inlet pressure test point
The inlet pressure test point is the left hand of the two ports
The inlet pressure test point is the left hand of the two ports
Gas On
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Observation:
Ensure no other gas appliances are in use.
Allow the ignition sequence to commence.
A drop in the standing pressure should be seen as the gas valve opens.
Notes:
1. When pressure gauge is removed the pressure test point should be tightened and checked for gas tightness.
2. No other gas appliances must be in use during the test. The appliance will have 5 ignition attempts approximately 5 seconds apart and gas will only pass for approximately 3 seconds on each ignition attempt.
Allow the ignition sequence to commence.
A drop in the standing pressure should be seen as the gas valve opens.
Notes:
1. When pressure gauge is removed the pressure test point should be tightened and checked for gas tightness.
2. No other gas appliances must be in use during the test. The appliance will have 5 ignition attempts approximately 5 seconds apart and gas will only pass for approximately 3 seconds on each ignition attempt.
Isolate as per TOPs P4
and refit as necessary