Set Appliance State:

Isolate Mains Power to appliance as per TOPs P4
Turn Hot Water Tap On
Attach pressure gauge to gas valve pressure outlet test point
WARNING! - Mains voltage is expected during test follow
TOPs P4 live testing procedure
Mains Power On

Measurement:

Reset appliance if required (press reset button for 2 seconds and release).
Allow appliance to commence its ignition sequence.
Measure the soft light burner pressure during the sparking phase.
Expected pressure should be as listed in the table below:
CATEGORY II2H3 +Natural GasLiquid Butane Gas Liquid Propane Gas
24 KW Model5.0 Mbar12.0 Mbar12.0 Mbar
28 KW Model5.5 Mbar12.0 Mbar12.0 Mbar
32 KW Model5.5 Mbar12.0 Mbar12.0 Mbar

Note:
1. Appliance may enter lockout during this test, reset as required until test is complete.
2. When pressure gauge is removed the pressure test point should be tightened and checked for gas tightness.