•Do not store or use gasoline or other flammable vapors and liquids in
the vicinity of this or any other appliance.
•This appliance is intended for normal family household use only. See the
Warranty. If you have any questions, contact the manufacturer.
•Always have a working smoke detector near the kitchen.
•Never use the cooktop to warm or heat a room.
•Children should not be left alone or unattended in an area where appliances
are in use. They should never be allowed to sit or stand on any part of the
appliance.
•When children become old enough to use the cooktop, they must be
instructed in safe practices.
•Do not store items of interest to children above or at the back of the cooktop.
•Do not store flammable materials on or near the cooktop.
•In the event that personal clothing catches fire, drop and roll immediately to
extinguish flames.
•Never let clothing, potholders, or other flammable materials come in contact
with hot burners or hot burner grates.
•Do not clean the cooktop while it is still hot. Some cleaners produce noxious
fumes when applied to a hot surface.
•Smother flames from food fires other than grease fires with baking soda.
Never use water on cooking fires.
•Do not allow aluminum foil, plastic, paper or cloth to come in contact with a
hot burner or grate. Do not allow pans to boil dry.
•Have the cooktop installed and grounded by a qualified technician.
•Do not repair or replace any part of the appliance unless specifically recommended in this manual. All other servicing should be referred to a qualified
technician.
•Do not use aluminum foil to line any part of the cooktop.
•If the cooktop is near a window, be certain that curtains or any other window
covering do not blow over or near the burners; they could catch on fire.
•When using the cooktop: Do not touch the burner grates or the immediate surrounding area.
•Use only dry potholders; moist or damp potholders on hot surfaces may
cause burns from steam.
•Never leave the cooktop unattended when in use. Boilovers cause smoking,
and greasy spillovers may ignite.
•Always position handles of utensils inward so they do not extend over adjacent work areas, burners, or the edge of the cooktop.
•Wear proper apparel. Loose fitting garments or hanging sleeves should never
be worn while cooking.
•Use only certain types of glass, heatproof glass, ceramic, earthenware, or
other glazed utensils that are suitable for cooktop use.
•Leave the hood ventilator on when flambéing food.
•Smother flames from a grease fire with a close-fitting lid, cookie sheet, or
other metal tray, then turn off the gas burner. Be careful to prevent burns. If
the flames do not go out immediately, evacuate and call the fire department.
•Do not use water, including wet dishcloths or towels on grease fires. A violent
steam explosion may result.
•Never pick up a flaming pan. You may be burned.
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WARNING: To avoid electrical shock hazard, before servicing the
cooktop, switch power off at the service panel and lock the panel to prevent the power from being switched on accidentally.
Fire Extinguishers
Use an extinguisher only if:
•You know you have a Class ABC extinguisher and you already know how to
operate it.
•The fire is small and contained in the area where it started.
•The fire department is being called.
•You can fight the fire with your back to an exit.
Gas Appliance Safety
WARNING: If the information in this manual is not
followed exactly, a fire or explosion may result causing property damage, personal injury or death.
Do not store or use combustible materials, gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.
• WHAT TO DO IF YOU SMELL GAS:
•Do not try to light any appliance.
•Do not touch any electrical switch.
•Do not use any phone in your building.
•Immediately call your gas supplier from a neighbor’s
phone. Follow the gas supplier’s instructions.
•If you cannot reach your gas supplier, call fire department.
Installation and service must be performed by a qualified installer,
authorized service agency or the gas supplier.
Gas Cooking Safety
•During cooking, set the burner control so that the flame heats only the bottom
of the pan and does not extend beyond the bottom of the pan.
•Take care that drafts like those from fans or forced air vents do not blow flammable material toward the flames or push the flames so that they extend
beyond the edges of the pan.
•Have the cooktop installed and grounded by a qualified technician. Have the
installer show you where the gas shut-off valve is located.
•For proper lighting and performance of burners, keep igniters clean and dry.
•In the event that a burner goes out and gas escapes, open a window or a
door. Wait at least 5 minutes before using the cooktop.
•Do not obstruct the flow of combustion and ventilation air.
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California Proposition 65
WARNING: Burning gas cooking fuel generates some by-products which are
on the list of substances which are known by the State of California to cause cancer or reproductive harm. To minimize exposure to these substances, always
operate this unit according to the instructions contained in this booklet and provide
good ventilation.
About the Cooktop
↖
↖
Parts and Accessories
Figure 1 - Model SGS304/SGSX304
2
3
5
↖
1
1. Left front surface burner (8,000 BTUs) - XLO feature on SGSX model only
2. Left rear surface burner (12,000 BTUs) - XLO feature on SGSX model only
3. Right rear surface burner (8,000 BTUs)
4. Right front surface burner (12,000 BTUs)
5. Grate bridge
6. Burner "On" Indicator Light
7. Serial Number/Data Plate Location (right front underneath)
Figure 2 - Model SGS365/SGSX365
1
2
2
5
3
3
467
↖
1
1
6
2
3
457
1. Left front surface burner (8,000 BTUs) - XLO feature on SGSX model only
2. Left rear surface burner (12,000 BTUs) - XLO feature on SGSX model only
3. Right rear surface burner (8,000 BTUs)
4. Right front surface burner (12,000 BTUs)
5. Center surface burner (15,000 BTUs)
6. Burner "On" Indicator Light
7. Serial Number/Data Plate Location (right front underneath)
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Figure 3 - Model SGS456/SGSX456
3256
↖
1346724581
1. Left front surface burner (8,000 BTUs) - XLO feature on SGSX model only
2. Left rear surface burner (12,000 BTUs) - XLO feature on SGSX model only
3. Right rear surface burner (8,000 BTUs)
4. Right front surface burner (12,000 BTUs)
5. Center left surface burner (15,000 BTUs)
6. Center right surface burner (15,000 BTUs)
7. Burner "On" Indicator Light
8. Serial Number/Data Plate Location (right front underneath)
Sealed STAR™ BurnersYour new cooktop has sealed STAR™ gas burners. There are no burner parts
under the cooktop to clean, disassemble or adjust. Your cooktop has three different burner sizes; small, medium and large. Match the pan to the size burnerSTAR™ Burner Caps.
The burner cap is porcelainized steel. If the burner cap is not placed correctly, the
burner may not light or the flame may not burn completely or correctly.
Figure 4 - Burners Caps
WARNING: To avoid creation of harmful by products, do not use the
cooktop without all burner caps and all burner grates properly positioned.
Burner “ON” LightThe “ON” light is located in the center of the burner control knobs for the 30"
(76cm) and 45" (114cm) models. On the 36" (91cm) model it is to the left of the
control knobs. When illuminated, it indicates that one or more burners are in use.
It remains on until all burners are turned off.
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Burner GratesGrates must be properly positioned before cooking.
Figure 5 - Burner Grates
45” LEFT
UNIVERSAL
(ALL MODELS)
CENTER
(ONLY 45” MODELS)
45” RIGHT
CENTER
(ONLY 36” MODELS )
CENTER
(ONLY 30” MODELS)
30" (76cm) Models have two universal grates and a grate bridge. Position the
short side of the grates toward the center and place the curved part of the grate
bridge at the front. The grates are not interchangeable.
36" (91cm) Models have two universal grates and a center grate. Position the
grates on the cooktop as shown in Parts.
45" (114cm) Models have two universal grates and two center grates. The side
grates are positioned with the short side toward the center. Position the two center
grates with the straight sides toward the center and next to each other.
WARNING: To properly support pots and avoid spills, all grates
must be properly positioned on the cooktop whenever the cooktop is in
use. Each of the four feet must be placed into the corresponding dimples in the cooktop. Do not use a grate if the rubber feet are missing or
damaged.
Burner Control KnobsSGS models which do not feature ExtraLow® operations have only standard
burner controls and bezels.
Figure 6 - Burner Control Knob
STANDARD BURNER CONTROL
SGSX models have standard burner controls and bezels as well as two
ExtraLow® burner controls on the left side. (See ExtraLow® Burners below.)
The standard burner controls have an infinite number of heat settings. At the low
position on the XLO burners a detent or notch may be felt.
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To operate: Select the appropriate control knob, push down and turn counterclockwise to the desired flame size. Turn OFF by turning the control knob clockwise to the •, indicating OFF.
Burner Control Knob BezelsThe bezels for standard burner controls feature one unnotched area on the under-
side. This single area snaps into the straight area in the cooktop so that OFF is at
the 12 o’clock position.
To remove knob and bezel: With burner in the OFF position, gently lift knob up
and off. Gently lift the bezel from the sides and pull up.
WARNING: To avoid possible electric shock, do not reach through
bezel opening into rough-in box.
To replace bezel and knob: With the • on the bezel in the 12 o’clock position,
press to snap in place. Replace control knob by placing indicator line at the 12
o’clock position; press down firmly. For models SGSX only, be sure to replace
ExtraLow® bezels in the 2 left burner positions.
Thermador® ExtraLow Burners
(SGSX Models only)
Two burners are enhanced with the ExtraLow (XLO®) feature. When the control
knob is set within the XLO® zone, the flame cycles OFF and ON automatically for
varying seconds every minute. This cycling is normal and allows you to simmer,
poach, melt or hold cooked food without scorching or burning.
How They Work
•The burner flame will cycle ON and OFF each minute when the setting is at
any position between LO (past detent) and XLO.
•The length of time the flame is ON and OFF depends on the knob setting.
•With a setting just below LO, the flame will be ON approximately 53 seconds
and OFF 7 seconds of each minute.
•With a setting at the XLO position, the flame is ON approximately 7 seconds
and OFF 53 seconds of each minute.
•The knob can be set to any position between LO and XLO.
Figure 7 - Extra Low Burner Control Knob
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EXTRALOW BURNER CONTROL
WARNING: Do not clean or touch any of the burners when one or
both XLO burners are in use. When the XLO burner automatically reignites, the igniter at the burner will spark.
Using the Cooktop
Before Using the Cooktop
for the First Time
Operation
Normal Operation
(Electronic Ignition/Reignition)
•Remove all packing materials and literature from the cooktop surface.
•While cool, wipe with a clean, damp sponge and dry.
•There may be a slight odor during the first several uses; this is normal and will
disappear.
•Optimum cooking results depend on the proper cookware being selected and
used. (See Proper Cookware.)
•Read all safety precautions and Use and Care Manual information prior to
operating.
The cooktop uses electronic igniters to light the burners. There is no pilot light.
Each burner has its own igniter. If a burner flame blows out during use, the burner
will automatically reignite.
CAUTION: Do not touch any of the burners when the cooktop is in
use. All ignitors spark when any burner calls for a spark.
The ignitor should be clean and dry for proper operation.
•Avoid getting water or food on the igniter.
•If the igniter is wet or soiled, it may spark without igniting the burner, or even
spark continuously when a flame is present.
NOTE: If the burner does not light within 4 seconds, turn the burner off. Check to
see that the cap is positioned correctly on the burner base and the igniter is clean
and dry. If a burner still fails to ignite, see Before Calling Service.
When a flame is present and a Low setting is used, the igniter may occasionally
spark. This is normal.
In the Event of a Power FailureIn the event of a power failure, only the standard burners can be ignited manually.
If the cooktop is being used when a power failure occurs, turn all the burner control knobs to the OFF position. The standard burners can then be ignited manually
by holding a match at the ports and turning the control knob to the HI position.
Wait until the flame is burning all the way around the burner before adjusting the
flame to the desired height.
The two XLO burners on SGSX models cannot be ignited manually. Be sure to
turn XLO knobs OFF if a power failure occurs. The burners will not turn back on
until both control knobs are turned OFF and then turned back ON again after
power has been restored. See What To Do If You Smell Gas.
WARNING: The reignition feature will not work in the event of a
power failure.
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Typical Flame CharacteristicsThe burner flame should be blue in color and stable with no yellow tips, excessive
noise or fluttering. It should burn completely around the burner cap.
Yellow Flames:
Further adjustment is required.
Yellow Tips on Outer Cones:
Normal for LP Gas.
Soft Blue Flames:
Normal for Natural Gas.
If the flame is completely or mostly yellow, verify that the regulator is set for
the correct fuel. After adjustment, retest.
Some yellow streaking is normal during the initial start-up. Allow unit to operate 4-5 minutes and re-evaluate before making adjustments.
Foreign particles in the gas line may cause an orange flame during initial use. This
should disappear with use. Check burner cap to make sure port holes are not
obstructed. If the ports are clogged, see ‘Before Calling for Service’ on the back
cover.
NOTE: An audible “pop” may be heard when the burner is turned off manually, or
when cycling in the XLO® zone (SGSX models). The “popping” may be louder
with LP gas than with natural gas.
Getting the Most
Out Of Your Cooktop
Cooking Techniques
(For Best Results)
•Bring food to a boil; stir well to be sure all the food is boiling, then cover and
•Use a lid to keep a more constant cooking temperature.
•Use a higher XLO setting if the pan is uncovered.
•Check the food occasionally to see if the control knob should be turned to a
•If the control knob is set too low to maintain simmer, bring the food back to a
•It is normal to stir food occasionally.
•Simmer bubbles may not be seen when the flame has cycled OFF.
•While the flame is ON, there may be bubbling.
•There should be at least steam and a slight quivering of the liquid’s surface
•Use proper cookware. (See section Proper Cookware below.)
•Center the pan over the burner before turning the burner on.
•Refer to the Cooking Chart below for suggested flame settings.
reduce the setting to the XLO zone.
lower or higher setting.
boil before setting a higher simmer setting.
while simmering.
Proper Cookware
Cookware Characteristics•Aluminum or copper bottomed pans conduct heat evenly.
•Steel pans, if not combined with other metals, may cook unevenly.
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Proper Cookware Practices
•Cast-iron cookware absorbs heat slowly and cooks more evenly at low-tomedium settings.
•Flat, heavy bottom pans provide even heat and stability.
•DO NOT USE pans that are thin, warped, dented or ridged as they heat
unevenly.
Table 1: Proper Cookware Practices
Practice
i)Match Pan Diameter to Flame
Size
•The flame should be the
same size as the bottom of
the pan or smaller. Do not
use small pans with high
flame settings as the flames
can lick up the sides of the
pan.
•Oversize pans that span two
burners are placed front to
rear, not side to side.
j)Use Balanced Pans
•Pans must sit level on the
cooktop grate without rocking.
•Center pan over burner.
k) Use a Lid That Fits Properly
•A well-fitting lid helps shorten
the cooking time.
Pans that span 2 burners, i.e. griddles, roasters and fish poachers, may be used
when placed front to back. Adjust flame equally to cook evenly. Use the Thermador® accessory griddle Model SGRIDDLE.
Use a Wok with a flat bottom. If using a round bottomed wok, use the Thermador
accessory support wok ring, Model AWOKRING.
Canners and pressure cookers must meet the same requirements as described
above. After bringing contents to a boil, use lowest heat setting possible to maintain a boil or pressure (for pressure canners/cookers).
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Cooking Chart
Table 2: Cooking Chart
FoodStart Cooking
BREADS
French Toast, Pancakes, Grilled Sandwiches
CEREALS
Cornmeal, Grits, Oatmeal
CHOCOLATELO to melt*. Remove when melted. 2 to XLO – 10 to 15 min. to
DEEP FRYINGHl – heat oil Med HI to Hl - maintain tempUse Standard burner setting.
EGGS
Fried, Scrambled
MEAT, FISH, POULTRY
Bacon, Sausage Patties
Braising: Swiss Steak,
Pot Roast
Frying: Chicken Hl – melt fat, brown on Med.LO – cover, finish cooking.Use Standard burner setting,
Med. – preheat skillet. Med. Lo to Med. Use Standard burner setting.
Hl – cover, bring water to a
boil, add cereal.
Med. to Med. Hi – melt butter, add egg.
Hl until meat starts to sizzle.Med. Lo to Med. – to finish
Hl – melt fat, brown on Med.
Hi to Hl, add liquid, cover.
Continue Cooking /
Standard Burners
Med. Lo to Med. – finish
cooking according to package directions.
LO to Med. Lo – finish cooking.
cooking.
LO to Med. Lo – cover, simmer until tender.
OR Continue Cooking -
ExtraLow® Burners
1 to XLO® – to hold, cover*.
melt. 1 to XLO – to hold*.
1 to XLO – to hold for a short
period*,
Use Standard burner setting.
3 to 1 – simmer until tender.
Pan Frying: Lamb
Chops, Thin Steaks,
Hamburgers,
Link Sausage
Simmering: Stewed
Chicken, Corned Beef,
Poaching Fish
POPCORNMed to Med. HI – cover, heat
PRESSURE COOKER
Meat, Vegetables
RICEHl – cover, bring water to
SAUCES
Tomato Base
White, Cream,
Bernaise, Hollandaise
SOUPS, STEWSHl – cover, bring liquid to
Med HI to Hl – preheat skillet.
Hl – cover, bring liquid to
boil.
until kernels start to pop.
Med. Hi to Hi – build up pressure.
boil, add rice, cover.
Med. HI to Hl – cook meat/
vegetables, follow recipe.
Lo to Med. Lo – melt fat, follow recipe.
boil.
Med. to HI – brown meat. 4 to 3 – hold, uncovered
3 to 2 – hold, covered
LO to Med. Lo 4 to 1 – simmer slowly.
Med. to Med. Hi – finish popping.
Med. Lo to Med. – maintain
pressure.
LO to Med. Lo – cover, cook
according to package directions.
LO to Med. Lo 2 to XLO – simmer*
LO to Med. Lo – finish cooking.
LO to Med. Lo – simmer. 3 to 2 – simmer*
Use Standard burner setting.
Use Standard burner setting.
4 to 2 – cook according to
package directions. 1 to XLO
– hold, cover.
2 - 3 uncovered to thicken
1 to XLO – to hold, cover*.
1 to XLO – to hold, cover*.
STIR FRY Hl – heat oil, add vegetables. Med. HI to Hl – finish cook.Use Standard burner setting.
VEGETABLES
Fresh
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Hl – cover, bring water and
vegetable to a boil.
Med. Lo to Med. – cook 10 to
30 minutes, or until tender.
1 to XLO – to hold, cover*. *
Stir Occasionally
Care and Cleaning
Daily Cleaning PracticesThe entire Cooktop can be safely cleaned by wiping with a soapy sponge, then
rinsing and drying. If stubborn soil remains, follow the recommended cleaning
methods below.
Figure 8 - Cleaning the Cooktop
36 “ Model
(91cm)
•Always use the mildest cleaner that will do the job. Use clean, soft cloths,
sponges or paper towels.
•Rub stainless steel finishes in the direction of the grain. Wipe area dry to
avoid water marks.
•Before cleaning, be certain the burners are turned off and the grates are cool.
•Do not clean removable cooktop parts in any self-cleaning oven.
•After cleaning, place all parts in their proper positions before using cooktop.
Cleaning GuidelinesThe cleaners recommended below and on the following page indicate a type and
do not constitute an endorsement of a particular brand. Use all products according
to package directions.
Table 3: Cooktop Cleaning Chart
Cooktop Part / MaterialSuggested CleanersImportant Reminders
Burner Base and
Burner Cap, underside
/ Aluminum Alloy
•Detergent and hot water; rinse
and dry.
•Stiff nylon bristle tooth brush to
clean port openings.
•Abrasive Cleansers: Brillo® or
S.O.S.® pads. Rinse and dry.
•Do not soak burner caps.
•Do not scratch or gouge the port
openings.
•Clean ports with a wire or straightened paper clip.
•Do not use a toothpick that may
break off.
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Table 3: Cooktop Cleaning Chart
Cooktop Part / MaterialSuggested CleanersImportant Reminders
Burner Cap and exterior finish /
Porcelain Enamel
Control Knobs and Bezels / Plastic•Hot sudsy water; rinse and dry
Exterior Finish / Stainless Steel•Nonabrasive Cleaners: Hot water
•Hot sudsy water; rinse and dry
thoroughly.
•Nonabrasive Cleansers: Ammonia, Fantastic®, Formula 409®.