John Lewis JLBIGH753 - Manual (Page 12)

12
Commissioning Commissioning Commissioning 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.
z
Turn the gas tap to the MAX position and
ignite.
z
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: Procedure: Procedure: Procedure: Procedure:
1) Re-ignite the burner and set to MIN.
2) Remove the control knob.
3) To adjust, use a thin bladed
screwdriver and turn the
adjustment screw (see diagram)
until the flame is steady and does
not extinguish, when the knob is
turned from MIN to MAX. Repeat
this procedure for all burners.
Pressure testing Pressure testing Pressure testing Pressure testing Pressure testing
The pressure testing must be carried out on
the burners.
Proceed as follows:
1) Remove the pan supports and the
burner caps and crowns.
2) Fit manometer tube over the
injector.
3) Turn on the burner gas supply and
ignite another burner supply.
The pressure reading should be
nominally 20 mbar and must be
between 17 mbar and 25 mbar.
4) Turn off the burner supplies.
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Minimum adjustment screw Minimum adjustment screw Minimum adjustment screw Minimum adjustment screw Minimum adjustment screw