Step 2: Cabinet Preparation
NOTE:
• If a solid side cabinet wall exists on one or both
sides, you will need to notch the front corner of the
cabinet to match the countertop notch and to allow
clearance for the cooktop front (see Detail A, Figs.
3 and 4).
• If a supporting deck is used, the sides or bottom of
the cutout may be solid combustible or noncombus-
tible material. If the bottom is solid, provide a 6" by
6" cutout in the left rear corner of the supporting
deck. This will provide clearance for the gas inlet and
power cord, while also allowing viewing of the prod-
uct rating label.
• Always keep appliance area clean and free from
combustible materials, gasoline and other flam-
mable vapors and liquids.
• Do not obstruct the flow of combustion and ventila-
tion air to the unit.
1. To ensure professional results, the cabinet and
countertop openings should be prepared by a quali-
fied cabinet worker.
2. The clearances shown in Fig. 1 are required. The
same clearances apply to island installations, ex-
cept for the overhead cabinets, which must have a
space wide enough to accept the island hood.
3. The cooktop is designed to hang from the countertop
by its side flanges. The countertop however, must be
strong enough to support this heavy cooktop. It may
be necessary to add a supporting cleat along each
side (see Fig. 2) or a 2 x 4 corner brace (see Figs. 3
and 4 and Detail A). Another alternative would be to
construct a deck to set the cooktop on.
4. The cooktop can be installed in various positions
with the front either flush or projecting, depending on
the countertop’s depth. (See Fig. 5, side view of
cooktop; see Figs. 3, 4, 6 and 7 for alternate mount-
ing positions.)
5. The gas and electrical supply must be located in an
area that is accessible without requiring removal of
the cooktop. The appliance electrical power cord
and gas pipe connection are located on the left
rear underside of the cooktop, as shown in Figs. 5
and 9. Make sure the gas regulator is horizontal
when installed in the gas supply line.
6. The maximum depth of over head cabinets in-
stalled on either side of the hood is 13".
A 36-inch minimum clearance is required between the
top of the cooktop and the bottom of an unprotected
cabinet. A 30-inch minimum distance is necessary
when the bottom of the wood or metal cabinet is
protected by not less than 1/4 inch of a flame retardant
material covered with not less than No. 28 MSG sheet
steel, 0.015 inch (0.4 mm) thick stainless steel, 0.024
inch (0.6 mm) aluminum, or 0.020 inch (0.5 mm) thick
copper. Flame retardant materials bear the mark:
UNDERWRITERS LABORATORIES INC.
CLASSIFIED
MINERAL AND FIBER BOARDS
SURFACE BURNING CHARACTERISTICS
Followed by the flame spread and smoke ratings.
These designations are shown as "FHC (FIame
Spread/Smoke Developed)." Materials with "O" flame
spread ratings are flame retardant. Local codes may
allow other flame spread ratings.
7. When there is less than a 12" horizontal clear-
ance between combustible material and the
back edge of the cooktop above the cooking
surface, a Thermador Low Back backguard must
be installed. (See Step 6). When clearance to
combustible material is over 12", a Thermador
Island Trim may be used. Attach the backguard
before sliding the appliance into the final in-
stalled position.
8. Establish the centerline of the cooktop’s desired
location. It should be the same as the center of the
overhead ventilation hood.
9. Cut the openings for the following installations:
• Wall installation, see Fig. 3.
• Island installation, see Fig. 4.
10. For flush installations as shown in Fig. 7, provide
clearance for the three screws located along the
underside of the cooktop leading edge by increas-
ing the cutout height by 1/16" or by notching the
cabinet at the location of the three screws.
11. For installation of a 48" cooktop above two side-
by-side Thermador Warming Drawers, Model
No. WD24, refer to Fig. 8. Completing the instal-
lation as per Fig. 8 will result in the left and right
edges of the cooktop being aligned with the left
edge of the left-side warming drawer and right
edge of the right-side warming drawer. If different
alignment is desired, the 1-7/8" horizontal dis-
tance between warming drawer cutouts may be
varied. However, maintain at least a 1-1/8" dis-
tance to avoid interference between the warming
drawers. Attach a 90-degree elbow to the gas
cooktop inlet pipe and remotely mount the pres-
sure regulator to avoid interference with the
warming drawer. All above-the-countertop clear-
ances must be maintained, as shown in Fig. 1.
As defined in the "National Fuel Gas Code"
(ANSI Z223.1/NFPA54-current issue).
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