TESTING THE OPERATION OF THE GAS COOKER

Testing appliance operation

(Apparatus: manometer and connecting tube)

After installation, test the appliance and ensure that it operates correctly, before handing it over to the customer. The following procedure is recommended:

•Check that the manometer zero point is correct; then connect the manometer to the appliance pressure test point. This is located on the Regulator or L.P.G. Inlet

Fitting behind the kick panel (or under the Storage Drawer where fitted).

•Turn on the gas supply and electricity (if applicable) and attempt ignition. (For correct procedure, refer to the Ignition Instructions.) Note that additional time needs to be allowed for the initial lighting as air has to be purged from the pipes.

•Check the operating pressure for the particular gas-type, as given in the Table on page 23.

For L.P.G. appliances, the regulator in question may be remote from the appliance.

For Natural Gas appliances

Regulators are supplied pre-adjusted and configured by the component maker for use with Natural Gas. The appliance installer is not required to make an adjustment to obtain the correct outlet pressure setting.

An arrow on the base of the regulator indicates the direction of gas flow when the inlet and outlet of the regulator are orientated correctly. When the regulator has been fitted check for leaks from the connections with soapy water.

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Checking the Function of the Regulator

The operation of the regulator can be confirmed by connecting a manometer to the pressure test point located on the side of the regulator body adjacent to the outlet. With the appliance operating check the outlet pressure:

1.When all burners of the appliance are operating at maximum,

2.When the smallest burner of the appliance is operating at minimum.

Under these conditions the outlet pressure should not vary from the nominal outlet pressure by more than ±20% of the nominal outlet pressure (ie ±0.20kPa for Natural Gas). If the regulator appears to not be performing satisfactorily then check the following points.

1.If the outlet pressure is consistently too low then the inlet pressure may be too low and adjustment of an upstream regulator may be needed, or an upstream regulator or valve with insufficient flow capacity may be present in the gas supply line. If this is suspected then it may be necessary to repeat the checks whilst measuring both the inlet and outlet pressure to determine if the inlet pressure is in the range 1.13 – 5kPa.

2.Check that the regulator has been fitted to the gas supply line in the correct orientation, the arrow on the base of the body indicates the direction of gas flow.

Once these checks have been completed, if the regulator still fails to perform in a satisfactory manner it should be replaced.

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Westinghouse PEK1370W, PEK1350W, GEK1385W Testing the Operation of the GAS Cooker, Checking the Function of the Regulator
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