Zanussi ZCM 631 manual Commissioning, Conversion from Natural to LPG Gas, To adjust the gas rate

Models: ZCM 631

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Commissioning

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.

ΦProcedure:

-Re-ignite the burner and set to MIN.

-Remove the control knob.

The adjustment screw is located down the centre of the gas tap control shaft or on the lower right hand side of the shaft (see diagram).

-To adjust, use a thin bladed screwdriver and turn the adjustment screw until the flame is steady and does not extinguish, when the knob is turned from MIN to MAX. Repeat this procedure for all burners.

ΦPressure Testing

-Remove 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 supply.

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

-Turn off the burner supplies.

a

FO 1032

a)Minimum adjustment screw

b)Tap

Conversion from Natural to LPG Gas

IMPORTANT

The replacement/conversion of the gas hob should only be undertaken by a CORGI registered engineer.

It is important to note that this model is designed for use with natural gas but can be converted for use with butane or propane gas providing the correct injectors are fitted. The gas rate is adjusted to suit.

Method

Ensure that the gas taps are in the 'OFF' position

Isolate the hob from the electricity supply

Remove all pan supports, burner caps, rings, crowns and control knobs.

With the aid of a 7mm box spanner the burner injectors can then be unscrewed and replaced by the appropriate LPG injectors (see Table: page 19).

To adjust the gas rate

With the aid of a thin bladed screwdriver completely tighten clockwise the by pass screw. Upon completion stick the replacement rating plate near the gas supply pipe.

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Zanussi ZCM 631 manual Commissioning, Conversion from Natural to LPG Gas, To adjust the gas rate