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23
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).
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.
F
Procedure:
- 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.
F
Pressure 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) Minimum adjustment screw
b) Ta p
FO 1032
a
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.