Zanussi ZGF 642 manual Commissioning, Procedure, Pressure Testing

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Commissioning

When the hob has been fully installed it will be necessary to check the minimum flame setting. To do this, follow the procedure below.

-Turn the gas tap to the MAX position and ignite.

-Set the gas tap to the MIN flame position then turn the control knob from MIN to MAX several times. If the flame is unstable or is extinguished follow the procedure below.

Procedure:

Re-ignite the burner and set to MIN. Remove the control knob and use a thin

bladed screwdriver to turn the adjustment screw until the flame is steady and does not extinguish, when the knob is turned from MIN to MAX.

The adjustment screw may be located at the centre of the gas tap control shaft or on the gas tap body, left of the control shaft or below (see diagram).

Repeat the adjustment procedure for all burners.

Adjustment

screw

Pressure Testing

Remove left hand pan support and front left burner cap and crown.

Fit manometer tube over the injector.

Turn on the burner gas supply and ignite another burner.

The pressure reading should be nominally 20mbar and must be between 17 mbar and 25mbar.

Turn off the burner supplies.

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Contents GAS HOB Model ZGF Child Safety Important Safety InformationService During UseContents When the HOB is First Installed InstallationDescription of the Hob Hob TopHOB Burners OperationBurner Minimum Maximum DiameterHobTop Maintenance and CleaningPan Supports BurnersSomething Not Working? Symptom SolutionZanussi Guarantee Conditions Service and Spare PartsPeace of Mind for 24 Months Customer CareEngineer technical data Instructions for the InstallerOverall Dimensions CUT OUT DimensionsLocation Important safety requirementsDimensions are given in mm InstallationGas Connection Cut Out SizeFitting the Hob into the worktop BuildingThis HOB Must be Earthed Electrical connectionsTaps Ignitor Switches Ignitor Unit Wiring DiagramEarth Continuity Check Fault FindingPreliminary Electrical Systems Check Ignition System / Gas Ignition Commissioning ProcedurePressure Testing Servicing To Adjust the GAS Rate