Bosch SNLPKITF User Manual
CONVERSION INSTRUCTIONS
THERMADOR COOKTOP CONVERSION KIT FOR TRADITIONAL MODELS
NATURAL GAS (NG) TO PROPANE (LP) GAS
SNLPKITF
This kit is used to convert only SGS and SGSX sealed STAR burner cooktops from natural
gas operation to propane gas operation. This kit cannot be used to convert other Thermador
model sealed burner cooktops, ranges or any other brand of cooktops.
PLEASE READ ENTIRE INSTRUCTIONS BEFORE PROCEEDING.
SAVE THE NATURAL GAS PARTS IN CASE CONVERSION FROM
LP BACK TO NATURAL GAS IS DESIRED. AN ADDITIONAL LP TO
NATURAL GAS CONVERSION KIT WILL ALSO BE REQUIRED.
WARNING
This conversion kit shall be installed by a
qualied service agency in accordance with the
manufacturer’s instructions and all applicable codes
and requirements of the authority having jurisdiction.
If the information in these instructions is not followed
exactly, a re, explosion or production of carbon
monoxide may result causing property damage,
personal injury or loss of life. The qualied service
agency is responsible for the proper installation of
this kit. The installation is not proper and complete
until the operation of the converted appliance
is checked as specified in the manufacturer’s
instructions supplied with the kit.
IMPORTANT: Only a qualied service technician or installer should make this conversion.
INSTALLER: Please leave these Installation Instructions with this unit for the owner.
OWNER: Please retain these instructions for future reference.
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For Massachusetts Installations:
Installation must be performed by 1.
a qualied or licensed contractor,
plumber, or gas tter qualied or
licensed by the state, province, or
region.
Shut-off valve must be a “T” handle 2.
gas cock.
Flexible gas connector must not be 3.
longer than 36 inches.
CAUTION:
When connecting the unit to the propane
gas, make certain the propane gas tank
is equipped with its own high pressure
regulator. In addition, a pressure
regulator was supplied with the cooktop.
This second regulator must be installed
with the cooktop. The maximum gas
pressure to this appliance is not to
exceed 14.0 inches water column from
the propane gas tank regulator.
Kit Contents:
Component Quantity
Conversion Kit Instructions 1
Conversion Sticker 1
Foam Tape 1
12.5mm T Venturi 2
10.5mm Venturi 1
9mm T Venturi 2
117 Orice 1
91 Orice 2
74 Orice 2
Note:
Depending on model, the kit may contain more
components than necessary to complete your
conversion.
Tools Required:
7 mm Socket Driver w/ 3” minimum extension
20 mm Socket
Flat-head Screwdriver (small)
The following must be met when testing
supply piping system:
a) The appliance and its individual shutoff valve must be disconnected from
the gas supply piping system at test
pressures in excess of 1/2 psig (3.5 kPa).
b) The appliance must be isolated from
the gas supply piping system by closing
its individual manual shut-off valve during
any pressure testing of the gas supply
piping system at test pressures equal to
or less than 1/2 psig (3.5 kPa).
Main Orices SGS304FS
117 Front Right – 15000 BTU/hr
91 Front Left – 9100 BTU/hr
91 Rear Left – 9100 BTU/hr
74 Rear Right – 6000 BTU/hr
Main Orices SGS/X305FS & SGS/X365FS
117 Center – 15000 BTU/hr
91 Front Right – 9100 BTU/hr
91 Rear Left – 9100 BTU/hr
74 Front Left – 6000 BTU/hr
74 Rear Right – 6000 BTU/hr
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CAUTION:
1. TURN OFF GAS AND ELECTRICITY
If the cooktop is installed in the counter, 1) shut
off the gas valve to the cooktop, and 2) remove
cooktop power cord from electrical outlet or turn
breaker off at breaker box and 3) turn all control
knobs to the “OFF” position.
2. CONVERT PRESSURE REGULATOR
FROM 6” W.C. TO 10” W.C.
The gas pressure regulator supplied with the unit is
convertible from natural gas to propane (LP) gas.
To operate correctly on propane gas, the pressure
regulator must be converted as follows: (See
Figure 1.)
a) REMOVE THE HEXAGON CAP from the top of
the regulator.
b) REMOVE THE PLASTIC BUTTON IN THE CAP
AND TURN IT OVER, pressing it rmly in place so
that the letters “LP” can now be seen upright in the
stem.
Tige
Tige
Figure 2
Star
Burner
Cap
Igniter
Venturi
Burner
Base
Maintop
c) REPLACE THE CAP and button assembly into
the top of the regulator sealing it rmly. Make
certain spring is still in place.
d) Finally, INSTALL THE FOIL CONVERSION
STICKER next to the rating plate, located on the
bottom corner of the rough-in-box.
(Note: Arrow on back part of regulator needs to
point in the direction of gas ow to the cooktop.)
3. REPLACE MAIN ORIFICES and
VENTURIS
REMOVE GRATES, BURNER CAPS, BURNER
BASES AND VENTURI NUTS. Maintop does not
require removal.
REMOVE MAIN ORIFICES.
Note: The Thermador Cooktop models contain
7mm orices. A method of retaining main orices
in the socket during extraction and insertion is
to apply a piece of foam tape to the socket (see
Figure 3).
Insert the socket driver with 3” minimum extension
into the jet holders to remove existing orices, as
shown in Figure 4.
3
ASSEMBLE NEW ORIFICES in
place on the cooktop exactly as
layed out in the orifice package card
as shown in Figure 5. Place the
new orifices into the socket one at
a time (the tape will keep them in
place), then insert each orifice into
its threaded hole in jet holders. USE
LOW TORQUE.
Figure 5
LP ORIFICES
91
91
74
117
Figure 6
LP VENTURIS
12.5T
12.5T
9T
10.5
REPLACE OLD VENTURI NUTS
with new venturi nuts, see Figure 6
(with a 20 mm socket or an
adjustable wrench). USE LOW
TORQUE.
4. CONVERTING VALVES
FOR PROPANE GAS
The bypass jet on each valve must be
adjusted. Your cooktop may come
with either hollow or solid valve
shafts. Determine the bypass screw
location accordingly. See figure 7.
a) Place all knobs to “Off” position.
b) Remove knobs.
c) Locate hole on cover which is
aligned to bypass screws. See Fig. 8.
d) Insert screwdriver in hole and turn
bypass screw clockwise until “bottomed out”. USE LOW TORQUE.
e) Replace knobs.
4 Burner Models
91
117
74
5 Burner Models
Figure 7
74
91
4 Burner Models
12.5T
10.5
9T
5 Burner Models
Figure 8
9T
12.5T
Solid stem Hollow stem
By-Pass Jet
Location
By-Pass Jet
Location
Solid stem Hollow stem
5. TEST TO ENSURE A SUCCESSFUL CONVERSION
Check for flame characteristics: flame should be blue with no yellow tip. See “Final Check” section of the Installation
manual.
High Altitude Installation:
This appliance is CSA certified for safe operation up to an altitude of 10,000 ft. without any modifications (except LP
conversion when applicable).
Questions?
1-800-735-4328
www.thermador.com
We look forward to hearing from you!
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