Set Appliance State:
Mains Power Off
Gas Off
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
Attach U-gauge to gas valve inlet pressure test point
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 pressure should be observed as the gas valve opens, as pressure changes from standing to working pressure.
Expected working pressure 20mb.
Note: When U-gauge is removed pressure nipple should be tightened & checked for gas soundness.
A drop in pressure should be observed as the gas valve opens, as pressure changes from standing to working pressure.
Expected working pressure 20mb.
Note: When U-gauge is removed pressure nipple should be tightened & checked for gas soundness.
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