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Gas pressures
The following table shows the supply and operating pressures for
various gases.
GAS TYPE
Supply pressure at inlet to
appliance regulator (if fitted)
Operating pressure at
appliance test point
*If the regulator is placed upstream of the cooker inlet, as is normal for cookers
operating on LPG, then the supply pressure and operating pressure are the
same.
For WFE904 and WFE915 models
The following table shows the injector sizes for each burner.
INJECTOR ORIFICE
Low heat burner
Medium heat burner
High heat burner
Intense heat wok burner
For WFE916 and WFEP917 models
The following table shows the injector sizes for each burner.
INJECTOR ORIFICE
Low heat burner
Medium heat burner
High heat burner
Intense heat
dual wok burner
Checking piping size
To work out a suitable pipe size for connection use the information
in this table.
MODELS
WFE914 & WFE904
WFEP916 & WFEP917
For information and requirements about construction
and capacity of consumer piping refer to AS/NZS 5601.1 series of
standards.
UNIVERSAL
NATURAL GAS
LPG
1.13 (kPa)
2.75*
Minimum
(kPa)
1.00 (kPa)
2.6 (kPa)
UNIVERSAL
NATURAL GAS
LPG
1.00mm
0.55mm
1.35mm
0.70mm
1.60mm
0.90mm
1.75mm
1.00mm
NATURAL GAS
UNIVERSAL
LPG
1.00mm
0.55mm
1.35mm
0.70mm
1.60mm
0.90mm
0.96mm
0.52mm
(inner)
(inner)
3 x 1.07mm
3 x 0.58mm
(outer)
(outer)
NATURAL GAS
UNIVERSAL
LPG
49.6 MJ/h
40.9 MJ/h
54.2 MJ/h
45.5 MJ/h
Gas connection
Read these points before connecting to the gas supply:
• The appliance is preset for natural gas use, if LPG is to be used see
Conversion to LPG section.
• Gas installation must be made in accordance with AS/NZS 5601.1,
the local gas fitting regulations, municipal codes and other
statutory regulations.
• The gas connection point is a ½" BSP external thread located at the
rear of the appliance as shown.
• The regulator is to be fitted to the manifold inlet at the rear of the
appliance and the connection is sealed using a tape or jointing
compound suitable for gas connections. The consumer piping is
then connected to the inlet of the regulator, either
1. directly, or
2. using a hose assembly and in accordance with Clause 6.10.1.9
of AS/NZS 5601.1 (High level connection) together with
the supplied elbow. The elbow is fitted to the inlet of the
regulator and oriented to allow the hose to hang downward.
The connection thread between the regulator and elbow is
sealed using a tape or jointing compound suitable for gas
connections.
This appliance is supplied set up for Natural Gas usage.
LPG CONVERSION
GAS COOKTOP MODELS
A conversion kit is included with the product for Universal LPG usage.
The conversion kit contains 5 or 7 injectors (refer to LPG conversion
table) and 1 LPG sticker.
Please follow the procedure below if a conversion to suit UNIVERSAL
LPG is required:
1. Remove the hotplate trivets, burner caps and burner crowns to
access the hotplate injectors. Replace the factory fitted injectors
with the appropriate injectors, as supplied. Refer to injector orifice
table for injector sizes. The injector size is stamped on the side of
the injector.
2. Unscrew the top hat nut from the regulator. The top hat nut and
control pressure spring assembly will disengage as an assembly.
3. Unscrew the threaded pin from top hat.
4. Upturn threaded pin, so spring is free and screw pin back into the
top hat until firm.
5. Refit the top hat nut assembly to the regulator ensuring that it
is fully screwed down. The regulator is now set for connection to
LPG.
6. Turn on the gas supply and at each new connection check for
leaks using soapy water. Each hotplate valve should be turned
on, one at a time, and the injector hole blanked off for several
seconds.
7. 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:
• when all burners of the appliance are operating at maximum,
• 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 of 2.60kPa by more than ±0.52kPa.
8. If the regulator appears to not be performing satisfactorily then
check the following points:
• If the outlet pressure is consistently too low then the inlet
pressure may be too low and adjustment of an upstream
7
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