User Manual

18 19INSTALLING THE FREESTANDING COOKER LPG CONVERSION
LPG CONVERSION GAS COOKTOP MODEL
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 regulator may be needed, or an
upstream regulator or valve with insufficient flow
capacity may be present in the gas supply line.
If this is suspected then it may be necessary to
repeat the checks whilst measuring both the
inlet and outlet pressure to determine if the inlet
pressure is in the range 2.75 – 7.00kPa.
• Check that the insert has been fitted correctly.
• Check that the turret screw is fully
screwed down.
• Check that the regulator has been fitted to the
gas supply line in the correct orientation, the
arrow on the base of the body indicates the
direction of gas flow.
Once these checks have been completed, if the regulator
still fails to perform in a satisfactory manner it should
be replaced.
9. One by one, turn the knobs to minimum and screw
in the bypass screw (accessible when the knob is
removed) until a small stable flame results.
Turn the knob to maximum and then back to
minimum to ensure that the correct minimum
flame is maintained.
10. Attach the LPG sticker to the cooker, near the gas
supply inlet. Cover the Natural Gas label that is
factory fitted.
Flame size adjusted
to maximum
Flame size adjusted
to minimum
Bypass screw
Control knob shaft
Reposition
Top hat nut assembly, fully
screwed down
Turn top hat
nut anti-
clockwise
and remove
Configuration for
Natural Gas
Configuration for LPG
A B
C D
E F
G H
NOTE: You MUST test the cooker after installation,
before you hand it over to the customer. You MUST have
a manometer and a connecting tube.
INSTALLING THE FREESTANDING COOKER
For WFE916DSD and WFEP917DSD
The following table shows the injector sizes for
each burner.
INJECTOR ORIFICE NATURAL
GAS
UNIVERSAL LPG
Low heat burner 1.00mm 0.55mm
Medium heat burner 1.35mm 0.70mm
High heat burner 1.60mm 0.90mm
Intense heat
dual wok burner
0.96mm
(inner)
3 x 0.58mm
(outer)
0.52mm
(inner)
3 x 0.58mm
(outer)
Checking piping size
To work out a suitable pipe size for connection use the
information in this table.
GAS TYPE NATURAL
GAS
UNIVERSAL
LPG
WFE914 & WFE904 49.6 MJ/h 40.9 MJ/h
WFE916 & WFEP917 54.2MJ/h 45.5MJ/h
For information and requirements about construction
and capacity of consumer piping refer to AS5601 series
of standards.
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.
Models WFE904SD, WFE915SD, WFE916DSD,
WFEP917DSD & WFE946SD
278
673
696
95
168
Gas connection point
to regulator
Models: WFE904SD, WFE915SD,
WFE916DSD, WFEP917DSD
Electrical cable
entry point
Models:
WFE904SD,
WFE915SD,
WFE916DSD,
WFEP917DSD,
WFE946SD
Gas hose restraints
point to regulator
Models: WFE904SD,
WFE915SD,
WFE916DSD,
WFEP917DSD
Gas pressures
The following table shows the supply and operating
pressures for various gases.
GAS TYPE
NATURAL
GAS
UNIVERSAL
LPG
Supply pressure at inlet
to appliance regulator
(if fitted)
1.13 (kPa)
Minimum
2.75*
(kPa)
Operating pressure at
appliance test point
1.00 (kPa) 2.6 (kPa)
*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 WFE904SD and WFE915SD
The following table shows the injector sizes for
each burner.
INJECTOR ORIFICE
NATURAL
GAS
UNIVERSAL
LPG
Low heat burner 1.00mm 0.55mm
Medium heat burner 1.35mm 0.70mm
High heat burner 1.60mm 0.90mm
Intense heat wok burner 1.75mm 1.00mm