Thermador GP24WK, PCS364GD, PCS364GL, PCS366, PCS484GG Installation Instructions Manual

INSTALLATION INSTRUCTIONS MANUAL

PROFESSIONAL COOKTOPS

24" MODEL – GP24WK

36" MODELS – PCS364GD, PCS364GL, PCS366

48" MODELS – PCS484GG, PCS486GD, PCS486GL, PCS484WK

PLEASE READ ENTIRE INSTRUCTIONS BEFORE PROCEEDING.

CET MANUEL CONTENIT AVERTISSEMENTS EN ENGLAIS Y EN FRANÇAIS

IMPORTANT: LOCAL CODES VARY. INSTALLATION, ELECTRICAL CONNECTIONS,

GAS CONNECTIONS, AND GROUNDING MUST COMPLY WITH ALL APPLICABLE CODES.

IMPORTANT: Save these instructions for the Local Electrical Inspector’s use.

INSTALLER: Please leave these Installation Instructions with this unit for the owner.

OWNER: Please retain these instructions for future reference.

Gas Supply:

Natural Gas – 6 inch water column.
Propane Gas – 11 inch water column.

Electrical Power Supply:

All Professional Cooktop Models –

WARNING: Disconnect power
before installing. Before turning
power ON, be sure that all
controls are in the OFF position.

120 VAC, 60 Hz., 1Ph., 15 Amp circuit.

AVERTISSEMENT: Couper le
courant avant d'installer, Avant de

N

A

C

®

G

N

IA

D

A

APPROVED

N

TIO

IA

C

O

S

S

A

S

A

mettre EN MARCHE, soyez cer­tain que tous les contróles sont
dans la position ARRÈTE.

IMPORTANT INSTALLATION INFORMATION

WARNING: Improper
installation, adjustment,
alteration, service or main­tenance can cause injury or
property damage. Refer to
this manual. For assistance
or additional information
consult a qualified installer,
service agency, manufac­turer (dealer) or the gas
supplier.

— Do not store or use

gasoline or other
flammable vapors and
liquids in the vinicity
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
instruction.

• If you cannot reach
your gas supplier, call
the fire department.

— Installation and service

must be performed by
a qualified installer,
service agency or the
gas supplier.

AVERTISSEMENT:

L'installation inexacte,
l'adjustement, la modifica­tion, le service ou l'entretien
peut causer la blessure ou la
propriété endommageé. Se
référer à ce manuel. Pour
l’assistance ou l'information
additionnelle consulter un
installateur qualifié, une
agence de service, le
fabricant (le marchand) ou
le fournisseur de gaz.

• Ne pas emmagasiner ou
utiliser de l'essence ou des
sutres vapeurs
inflammables et liquides
aux endroits de celui-ci ou
aucum autre appareil.

CE QUI FAIRE SI VOUS

SENTEZ LE GAZ

• Ne pas essayer d'allumer

aucum appareil

• Ne pas toucher aucum

interrupteur électrique; ne
pas utiliser aucun
téléphone dans votre
bàtiment.

• Appeler immediatement

votre fournisseur de gaz du
téléphone d'un voisin.
Sulvre l'instruction du
fournisseur de gaz.

• Si vous ne pouvez pas

contacter votre fournisseur,
téléphone le service des
incendies.

• L'installation et le service

doivent étre exécutés par
un installateur qualifié, une
agence de service ou le
fournisseur de gaz.

TABLE OF CONTENTS

Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Important Installation Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Step 1: Ventilation Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Step 2: Cabinet Preparation . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . .4

Step 3: Unpacking, Moving, Placing & Anchoring the Cooktop . . . . . . . . . .7

Step 4: Gas Requirements & Hookup . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

Step 5: Electrical Requirements, Connection & Grounding . . . . . . . . . . . . .9

Step 6: Backguard Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Step 7: Test And Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Installer Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

(Shown with Low Back Model GPS36LB)

Model PCS366

Model GP24WK

(Shown with Low Back Model GP24LB)

INTRODUCTION

The Thermador Professional™ Cooktops
are available in a number of sizes and
configurations. Model GP24WK is a
24"-wide wok unit featuring a power
burner rated at 30,000 BTU/HR. 36"­wide Models PCS364GD, PCS364GL,
and PCS366 feature four sealed burn­ers and a griddle, four sealed burners
and a grill, or six sealed burners, re­spectively. 48"-wide Models PCS484GG,
PCS486GD, PCS486GL and PCS484WK
feature four sealed burners, griddle
and grill, six sealed burners and a
griddle, six sealed burners and a grill,
or four sealed burners and a 30,000
BTU/HR WOK, respectively. All sealed
burners are rated at 15,000 BTU/HR,
griddles at 15,000 BTU/HR, and grills
at 18,000 BTU/HR.

IMPORTANT:

• A backguard must be utilized
when there is less than a 12”
horizontal clearance between
combustible materials and the
back edge of the cooktop. The
Thermador Low Back backguard
must be ordered separately and
installed at the rear of the cook­top. For island installations and
other installations with more than
12” clearance, an optional stain­less steel Island Trim is available
to cover the backguard mounting
flanges.

• Verify that the appliance is cor­rect for the type of gas being
provided. Refer to Step 4 before
proceeding with the installation.

Page 2

This appliance has been tested in ac­cordance with ANSI Z21.1 Current Is­sue, Standard for Household Cooking
Appliances (USA) and in accordance
with CAN 1.1-M81 Domestic Gas
Ranges (CANADIAN).

strongly recommended that this

It is
appliance be installed in conjunction
with a suitable overhead vent hood.
(See Step 1 for Ventilation Require­ments.) Due to the high heat capability
of this unit, particular attention should
be paid to the hood and duct work
installation to assure it meets local
building codes. To eliminate risk of

burns or fire caused by reaching
over heated surface units, cabinet
storage located above the surface
units should be avoided.

Check local building codes for the proper
method of appliance installation. Local
codes vary. Installation, electrical con­nections and grounding must comply
with all applicable codes. In the ab­sence of local codes the appliance
should be installed in accordance with
the National Fuel Gas Code ANSI Z223.1
Current Issue and National Electrical

IMPORTANT INSTALLATION INFORMATION

Code ANSI/NFPA 70-Current Issue. In
Canada, installation must be in accor­dance with the CAN 1-B149.1 and .2 –
Installation Codes for Gas Burning
Appliances and/or local codes.

Be sure that the unit being installed is
correct for the type of gas being used.

This appliance is equipped with an
intermittent/interrupted ignition de­vice that cycles the two far left surface
burners on and off when in the
ExtraLow

®

setting.

CAUTION:

(1) When connecting the unit to pro-

pane gas, make certain the propane
gas tank is equipped with its own
high pressure regulator in addition
to the pressure regulator supplied
with this unit. The maximum gas
pressure to this appliance is not to
exceed 14.0 inches water column
from the propane gas tank regula­tor.

(2) This unit is designed as a cooking

appliance. Based on safety consid–
erations, never use it for warming
or heating a room.

ATTENTION:

(1) En branchant l’appareil au

gaz de propane, soyez certain
que le réservoir de gaz du
propane est équipé avec son
régulateur de haute pression
en addition du regulateur de
pression fourni avec cet
appareil. La pression de gaz
maximaie à cet appareil ne
dolt pas excéder une colonne
d’eau de 14.0 pouces du
régulateur du réservoir de gaz
du propane.

(2) Cet appareil est dessiné,

comme un appareil de
cuisson. Basé sur les
considérations de sécurite, ne
le jamais utiliser pour le
chauffage ou de faire chauffer
une chambre.

It is strongly recommended that a
suitable exhaust hood be installed above
the appliance. Downdraft ventilation
should not be used. The table below
indicates the Thermador hoods, by
model number, that are recommended
for use with the 24" Wok and 36" and
48" cooktops.

1. Select Hood and Blower Models:

• For wall installations, the hood width
must, at a minimum, equal the nominal
width of the appliance cooking surface.
Where space permits, a hood larger in
width than the cooking surface may be
desirable for improved ventilation
performance.

• For island installations, the hood width
should, at a minimum, overhang the

NOMINAL COOKTOP WIDTH

24" WOK

36" COOKTOP

HOOD* BLOWER** HOOD BLOWER

PH30HQS
PHE30,36

PH36HQS
PHE36, 42

appliance cooking surface by 6" on both
sides.

CAUTION: Ventilation hoods and
blowers are designed for use with single
wall ducting. However, some local
building codes or inspectors may
require double wall ducting. Consult
local building codes and/or local
agencies, before starting, to assure that
hood and duct installation will meet
local requirements.

• Hood blower speeds should be
variable to reduce noise and loss of
heated or air conditioned household air
when maximum ventilation is not
required. Normally, the maximum
blower speed is only required when
using the grill.

WALL INSTALLATION ISLAND INSTALLATION

STEP 1: VENTILATION REQUIREMENTS

2. Hood Placement:

• For best smoke elimination, the lower
edge of the hood should be installed a
minimum of 30" to a maximum of 36"
above the appliance cooking surface.
(See Fig. 1).

• If the hood contains any combustible
materials (i.e., a wood covering), it must
be a minimum of 42" above the cooking
surface.

3. Consider Make-Up Air:

• Due to the high volume of ventilation
air, a source of outside replacement air
is recommended. This is particularly
important for tightly sealed and
insulated homes.

• A qualified heating and ventilating
contractor should be consulted.

VTR1000Q, VTR1400Q

or VTN1000Q

VTR1000Q, VTR1400Q

or VTN1000Q

PHI48QS

PHI48QS

VTR1400Q

VTR1400Q

48" COOKTOP

Notes: * For wall installations where adequate space is available, the installer or user may elect to use a hood that is wider than the

cooktop cooking surface. This may be particularly beneficial for those cases, such as a long duct run or heavy usage of the grill,
in which improved capturing of the cooking exhaust is desired.

** Thermador offers a choice of remote (VTR1000Q or VTR1400Q) or in-hood (VTN1000Q) blowers for use in wall installations.

PH48HQS
PHE48, 60

VTR1000Q, VTR1400Q

or VTN1000Q

Page 3

PHI60QS

VTR1400Q

STEP 2: CABINET PREPARATION

1. To ensure professional results,
the cabinet and countertop
openings should prepared by a
qualified cabinet worker.

2. The clearances shown in Fig. 1
are required. The same clear­ances apply to island installa­tions, except 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 mounting posi­tions.)

5. The gas and electrical supply
should 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.

6. The maximum depth of over
head cabinets installed on
either side of the hood is 13".

7. When there is less than a 12"
horizontal clearance between
combustible material ∆ and the
back edge of the range 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
installed position.

8. Establish the centerline of the
cooktop’s desired location. It
should be the same as the
center of the overhead ventila­tion hood.

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 noncombus­tible 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
product rating label.

• Always keep appliance area
clean and free from com­bustible materials, gasoline
and other flammable vapors
and liquids.

• Do not obstruct the flow of
combustion and ventilation
air to the unit.

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 increasing 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. WD24N, refer to Fig.

8. Completing the installation
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 distance
between warming drawer
cutouts may be varied. How­ever, maintain at least a 1 1/8"
distance to avoid interference
between the warming drawers.
Attach a 90-degree elbow to the
gas cooktop inlet pipe and
remotely mount the pressure
regulator to avoid interference
with the warming drawer. All
above-the-countertop clear­ances must be maintained, as
shown in Fig. 1.

∆ As defined in the
“National Fuel Gas Code”
(ANSI Z223.1, Latest Edition).

Page 4

STEP 2: CABINET PREPARATION

Fig. 1
Clearance
Requirements

18" Min.

12"
both
sides

∆ As defined in the “National Fuel Gas Code”

24" for 24" Wok
36" for 36" Cooktop

48" for 48" Cooktop

**Island – 36" for 24" Wok

Island – 48" for 36" Cooktop
Island – 60" for 48" Cooktop

VENT HOOD

▲

30" Min. to 36" Max.,
bottom of Overhead
Hood to Cooking
Surface

13" Max.
depth of
overhead
cabinets

(42" if hood
contains
combustible
materials ∆).

▲

0" Bottom

(ANSI Z223.1, Latest Edition).

Horizontal
Min. Clearance
to Rear Wall:
0" with Backguard

▲

12" w/o Backguard

0" Sides

Combustible
Material ∆

▲

42" Min. to
Combustible
Material ∆
from Cooking
Surface.

Cooking
Surface

▲

Fig. 2
Installing
Side Supports
(both sides)

Counter
Sunk
Screws

Fig. 3 Wall Installation with
Countertop Backsplash

B

See Detail A

▲

A

23-7/16"

▲

A

B

C

0" (Control Panel Projecting 2" from Base Cabinet Face)
5/8" (Notch Required for Standard 24"-Deep Base Cabinet,

2" (Control Panel Flush to Cabinet Face – Min. 25-3/8"-Deep Base Cabinet Required)

Detail A

(Front face

C

of cabinet)

DETAIL

35-7/8"

B

3/8"

2x4 Corner
Support

A

D

B

24" WOK

9-1/16"

CORNER NOTCH

36" COOKTOP

24-3/4"

3/8"

Control Panel Projecting 1-3/8" from Base Cabinet Face)

Fig. 4 Island Installation
(No Countertop Backsplash)

▲

See Detail A

A

▲

D

22-11/16"

48" COOKTOP

47-7/8"

13/16"

3/4" Min.

D

24"

35-1/8"

Page 5

46-1/4"

STEP 2: CABINET PREPARATION

22 1/2"
(572 mm)

22 11/16"

(576 mm)

46 1/4"

(1175 mm)

22 1/2"

(572 mm)

9 1/16" (230 mm)

WD24Q

Cutout

WD24Q

Cutout

13/16"

(21 mm)

2 3/4" (70 mm) Vertical Distance
Between Cutouts
(See Side View for Wood Support)

1 7/8" (48 mm)
Horizontal Distance Between Cutouts

Minimum 3/4" (19 mm)

0" to 2"
(0 - 51mm)
(See Fig. 4

and Table

dimension ”C”)

(229 mm) 9"

Fig. 5 Side View of Cooktop

26-3/8”

1”

3” TO CENTER LINE GAS INLET

22-5/8”

2”

Cabinet face for installation with projecting control panel

Cabinet face for installation with flush control panel

* Low Back required when there is less than
12" horizontal clearance from back of cooktop
to combustible material. With more than 12" of
clearance, the Island Trim may be used.

23-3/8”

Fig. 7 Flush to

Cabinet Front

1/2”

COUNTERTOP

9”

3/4”

12”

Fig. 6 Projecting from

Cabinet Front

5/8" Notch
Depth

➤

➤

➤

➤

1-3/8"

Front projects outward 1-3/8" as shown
from standard 24”-deep base.

Fig. 8 Installation of 48” Cooktop above two side-by-side

Thermador Warming Drawers Model No. WD24N.

2" Notch

➤

Depth

➤

* Provide
clearance for
screws by
increasing
cutout height
by 1/16" or by

Front flush with cabinets; minimum
of 25-3/8" cabinet depth required.

notching in the
location of the
three screws.

Fig. 9

Front - Bottom of Unit

Product Rating Label/

Serial Tag

3" Min.

▲

3-Prong grounding type
receptacle connected to a
properly grounded and
polarized electrical supply
rated at 120VAC, 15 Amps,

Single Phase, 60 HZ.

36"

Power

Cord

Threading compounds must
be Resistant to Propane Gas

▲

1/2" Coupling (supplied with unit)

1/2" Close Nipple (supplied with unit)

Regulator (supplied with unit)
(Install with arrow pointing in
direction of appliance.)

▲

▲

5/8"
flex
line

A manual valve must be installed
external to the appliance, in an
accessible location from the front,
for the purpose of shutting off the
gas supply.

All Installer supplied parts must
conform to Local Codes.

Page 6

Side View

REAR

Plywood Support

Install additional
Wood Support along
front edge of cutout

2 3/4" Minimum

Between Cutouts

STEP 3: UNPACKING, MOVING, PLACING & ANCHORING THE COOKTOP

Fig. 10 Griddle Leveling Screws

1. Remove the outer carton and pack­ing material from the shipping
base. Ensure that you have all
cooktop components before pro­ceeding.

2. Remove the top grate castings,
burner caps and grill grate (if so
equipped) to reduce unit weight.

CAUTION:

Proper equipment and
adequate manpower must
be used in moving the
appliance to avoid damage
and/or personal injury. The
unit is heavy and should be
handled accordingly

IMPORTANT:

• Verify that the appliance
is correct for the type of
gas being provided. Refer
to Step 4 before proceed­ing with the installation.

• Attach the backguard
before sliding the appli­ance into the final in­stalled position.

See Step 6.

3. Lift and place the cooktop in the
opening. Be careful not to pinch
the power cord or gas inlet.

6. Level the Griddle: The griddle

4. Ensure that the power line cord is
free and hanging loosely.

5. Level the appliance. For proper
performance, the appliance must
be level.

should be level or tilted slightly
forward and should not rock.
Screws are installed in the back
ledge to eliminate rocking and to
adjust the level of the griddle. To
access these screws (A) (see Fig.

10), lift the back of the griddle.

STEP 4: GAS REQUIREMENTS & HOOKUP

Verify the type of gas being used at the installation site.
As shipped from the factory, all units are configured for
use on natural gas. For use with propane gas, the unit
must be converted. Field conversion for use with propane
must only be done by qualified service personnel. Con­tact the dealer where the unit was purchased or Thermador
(800/735-4328). The field conversion kit for all Profes­sional cooktops with Star burners (PCS series) is
Thermador Model STARLPKIT.

CAUTION:

When connecting unit to propane gas, make certain
the propane gas tank is equipped with its own high
pressure regulator in addition to the pressure regu­lator supplied with the appliance. The pressure of
the gas supplied to the appliance regulator must not
exceed 14" water column.

7. Replace the top grate castings,
burner caps and grill grate (if so
equipped).

For installation of the appliance at high altitude, please
consult your local gas company for their recommendation
of the correct orifice sizes and any other necessary
adjustments that will provide proper gas combustion at
specified altitudes.

Continued on Page 8

Page 7

STEP 4: GAS REQUIREMENTS & HOOKUP

Continued from Page 7

Natural Gas Requirements:

Inlet Connection: 1/2" N.P.T. (Minimum 5/8" dia.
flex line.)
Supply Pressure: 6" to 14" water column.
Manifold Pressure: 5" water column

Propane Gas Requirements:

Inlet Connection: 1/2" N.P.T. (Minimum 5/8" dia.
flex line.)
Supply Pressure: 11" to 14" water column.
Manifold Pressure: 10" water column

HOOK UP

• A manual gas shut-off valve must be installed external
to the appliance, in an accessible location from the front
for the purpose of shutting off the gas supply. The
supply line must not interfere with the back of the unit.
Make sure the gas supply is turned off at the manual
shut-off valve before connecting the appliance.

For Massachusetts Installations:

1. Shut-off valve must be a “T” handle gas cock.

2. Flexible gas connector must not be longer than 36 inches.

3. Not approved for installation in a bedroom or a bathroom unless unit is direct vent.

• The gas supply connections should be made by a
competent technician and in accordance with local
codes or ordinances. In the absence of a local code, the
installation must conform to the National Fuel Gas
Code ANSI Z223.1, Current Issue.

• Install the gas pressure regulator (supplied) to the
manifold pipe. Ensure that the appliance pressure
regulator is set to 5" W.C. for natural gas and
10" W.C. for propane gas, and that the arrow points in
the direction of the gas flow towards the appliance.
Connect the gas supply line to the unit pressure regu­lator using a 5/8" flex gas line between the manual gas
shut-off valve and pressure regulator. (See Fig. 9.)

• Always use pipe dope or Teflon tape on the pipe threads,
and be careful not to apply excessive pressure when
tightening the fittings.

• Turn on gas and check supply line connections for leaks
using a soap solution. Do not use a flame of
any sort to check for leaks.

• All installer-supplied parts must conform to
Local Codes.

CAUTION:

“The appliance must be isolated from the gas supply piping system by closing its individual manual shut­off valve during any pressure testing of the gas supply piping system at test pressures equal to or less
than 1/2 psig (3.5kPa.).”

“The appliance and its individual shut off valve must be disconnected from the gas supply piping system
during any pressure testing of the system at test pressures in excess of 1/2 psig (3.5kPa.).”

When checking the manifold gas pressure, the inlet pressure to the regulator should be at least 6.0" W.C.
for natural gas or 11.0" for propane.

Do not attempt any adjustment of the pressure regulator.

Page 8

STEP 5: ELECTRICAL REQUIREMENTS, CONNECTION & GROUNDING

• Always disconnect appliance
electric supply cord from wall
receptacle before servicing this
appliance.

• All cooktop models must be
plugged into a mating 3-Prong,
Grounding-Type Receptacle. The
receptacle must be connected to a
properly grounded and polarized
electrical power supply rated at
120VAC, 15 Amps, Single Phase,
60HZ. Maximum current rating of
the appliance is 7 Amps.

• Improper polarization or
grounding of the 120VAC
electrical supply circuit will
cause malfunction (such as
continuous sparking of the
burner igniters), may damage
this appliance, and could
create a condition of shock
hazard at the igniter of each
burner. If the circuit is not
correctly grounded and polar­ized, it is the responsibility
and obligation of the installer
or user to have the existing
receptacle changed to a
properly grounded and polar­ized receptacle in accordance
with all applicable local codes
and ordinances by a qualified
electrician. In the absence of
local codes and ordinances,
the receptacle replacement
shall be in accordance with
the National Electric Code.

• Observe all governing codes and
ordinances when grounding. In
the absence of these codes or
ordinances observe National
Electrical Code ANSI/NFPA No.
70 Current Issue. See Fig. 13 for
recommended grounding method.

• An electrical wiring diagram and
schematic have been attached to
the bottom of the cooktop chassis
for access by a qualified service
technician. Do not remove or
discard this important informa­tion.

Recommended
Grounding Method

The cooktop is factory equipped
with a power supply cord with a
three-prong grounding plug (with
polarized parallel blades). IT MUST
BE PLUGGED INTO A MATING,
GROUNDING TYPE RECEPTACLE
THAT IS CONNECTED TO A COR­RECTLY POLARIZED 120 VOLT
CIRCUIT. (See Fig. 13). Improper

grounding or polarization will
cause malfunction (such as
continuous sparking of the
burner igniters), may damage
this appliance, and could create
a condition of shock hazard at
the igniter of each burner.

If the circuit does not have a
grounding type receptacle, it is the
responsibility and obligation of the
installer or user to have the existing
receptacle changed to a properly
grounded receptacle in accordance
with all applicable local codes and
ordinances by a qualified electri­cian. In the absence of local codes
and ordinances, the receptacle
replacement shall be in accordance
with the National Electric Code.

THE THIRD GROUND PRONG
SHOULD NOT, UNDER ANY
CIRCUMSTANCES, BE CUT OR
REMOVED.

Alternate
Grounding Method

If installing a properly grounded
wall receptacle is impossible at the
time of installation, consult your
local electrical inspector for permis­sion to connect a temporary adapter
(with polarized blades) which could
be plugged into your present 2-wire
receptacle. (See Fig. 14). This

method is not recommended.

If this is done, you must attach the
lug and/or the green adapter wire
to the receptacle cover plate screw.
Ground from it to a grounded metal
cold water pipe. (See Fig. 15).

DO NOT GROUND TO A GAS
SUPPLY PIPE.

Page 9

STEP 6: BACKGUARD INSTALLATION

A Low Back backguard must be
installed when there is less than a
12" clearance between combustibles
and back edge of cooktop. (See Fig.
1 and 5.) For island installations
and other installations with over
12" clearance, an optional stainless
steel trim channel is available to
cover the backguard mounting
flanges. Attach the backguard

before sliding the appliance
into the final installed position.

Follow Steps A through C below:
A. Slide backguard over the two

flanges on the rear of the
appliance. Fasten the front and
back with two screws (see “A”,
Fig. 16) provided. No screws are
required behind the griddle
section.

B. Fasten the top of the backguard

to the wall with two screws
through the backguard. (See
“B”, Fig. 16.)

C. Place the backguard cap on top

and fasten using the tow
counter-sunk screws provided.
(See “C”, Fig. 16.)

Fig. 16 Low Back Attachment

C

B

A

LOW BACK AND ISLAND TRIM MODEL NUMBERS

COOKTOP MODEL NO. 12" LOW BACK ISLAND TRIM*
GP24WK GP24LBS GP24ITS
PCS36 GPS36LBS GPS36ITS
PCS48 GPS48LBS GPS48ITS

*Requires a minimum of 12" horizontal clearance between back of appliance and combustible materials.

TO CLEAN AND PROTECT
EXTERIOR SURFACES

The stainless steel surfaces may be cleaned by
wiping with a damp soapy cloth. Any mild glass
cleaner will remove fingerprints and smears.

Follow all cleaning by rinsing with clear water.
Wipe dry with a clean soft cloth to avoid water
marks. For discolorations or deposits that persist,
use a non-scratching household cleanser or
stainless steel polishing powder with a little water
and a soft cloth. For stubborn cases, use a plastic
scouring pad or soft bristle brush together with
cleanser and water. Rub lightly in direction of
polishing lines or “grain” of the stainless finish.
Avoid using too much pressure which may mar
the surface.

Use a stainless steel cleaner/polish to protect the
finish and maintain appearance.

DO NOT allow deposits to remain for long periods
of time.

DO NOT use ordinary steel wool or steel brushes.
Small bits of steel may adhere to the surface
causing rust.

DO NOT allow salt solutions, disinfectants,
bleaches or cleaning compounds to remain in
contact with stainless steel for extended periods.
Many of these compounds contain chemicals
which could prove harmful. Rinse with water after
exposure and wipe dry with a clean cloth.

Page 10

CAUTION

Thermador recommends that
burner adjustments be made by
a qualified technician at the
time of installation. Extreme
care should be used when
adjustments are made after
installation. Improper or lack of
adjustments may void your

warranty.

Fig. 17 Proper Flame (Approx.)

Griddle and Grill Burners

STEP 7: TEST AND ADJUSTMENT

Install any loose components, such as burner caps and grates, that may
have been removed earlier. Be certain that burner caps seat properly into
the alignment slots in the burner bases. Before testing operation of the
appliance, verify that the unit and the gas supply have been carefully
checked for leaks and that the unit has been connected to the electric
power supply. Turn the manual gas shut-off valve to the open position.
Check operation of the sealed gas burners and grill by pushing and
turning each knob counterclockwise to “HI”. The burner igniters will click
until the flame ignites. The two far left sealed burners feature XLO™,
causing the flame to cycle on and off when the knob is set to the XLO™
range. This is normal operation.

Burner flames should be blue and stable with no yellow tips, excessive
noise, or lifting of the flame from the burner. If any of these conditions
exist, check that the air shutter (grill and griddle only) or burner ports are
not blocked or clogged. Remove any blockages that exist.

➛

2"

➛

FINAL CHECK LIST

❑ Cooktop correctly positioned

and anchored in countertop
recess.

❑ Specified clearances maintained

to cabinet surfaces.

❑ Unit Level – front to back – side

to side.

❑ Burner caps positioned properly

on sealed burner bases.

❑ All packaging material removed.
❑ Backguard attached (if horizon-

tal clearance to combustible
materials behind cooking
surface is less than 12").

❑ Lava rock bag placed in grill

unit (if equipped). The lava rock
is spread evenly. The porcelain
grill rack is in place.

ELECTRICAL

❑ Polarized and grounded

120VAC, 15 Amp receptacle
with 15 Amp over-current
protection is provided for
service cord connection.

If the flame is too yellow, indicating insufficient air, adjust the shutter
counterclockwise to increase air inlet (grill and griddle only).

sealed top burner flames should be approximately 1-1/2" high.

The
The griddle and grill burner flames should be 1-1/2" to 2". (See Fig. 17).

NOTE: No air shutter or low flame adjustment is necessary or possible with
the sealed top burners.

INSTALLER CHECKLIST

GAS SUPPLY

❑ Connection: 1/2" NPT with a

minimum 5/8" diameter flex
line.

❑ The appliance is connected only

to the type of gas for which it is
certified for use.

❑ The pressure regulator (shipped

with unit) has been connected
to the manifold and is set for 5"
W.C. for natural gas or 10"
W.C. for propane.

❑ Manual gas shut off valve

installed in an accessible
location (without requiring
removal of appliance).

❑ Unit tested and free of gas leaks.
❑ Gas supply pressure does not

exceed 14" W.C.

OPERATION

❑ All internal packing materials

removed. Check below grates
and grill pans.

❑ Burner caps properly seated

into burner bases with align­ment pins engaged.

❑ Grill components properly

seated (not all models). Refer to
Care & Use Manual for Grill
details.

❑ Bezels centered on burner

knobs, and knobs turn freely.

❑ Each burner lights satisfacto-

rily, both individually and with
other burners operating.

❑ Air Shutter adjustment for

proper flame made for Grill and
Griddle. See Fig. 17.

❑ Griddle is level or tilted slightly

forward and does not rock (not
all models).

❑ Burner grates correctly posi-

tioned, level, and do not rock.

Page 11

Thermador is a leading manufacturer of Convection Micro Thermal Ovens, Convection Thermal Ovens, Thermal Electric Ovens, Warming
Drawers, Free-Standing and Slide-In Ranges, Steel Gas ExtraLow® Cooktops, Steel Gas Cooktops, Glass Gas ExtraLow Cooktops, Glass
Gas Cooktops, Glass Ceramic Gas Cooktops, Glass Ceramic Dual-Fuel Cooktops, Glass Ceramic All-Radiant Cooktops, Glass Ceramic
Halogen Cooktops, Electric Cooktops, Professional® All-Gas Ranges and Cooktops, Professional Dual-Fuel Ranges, Cook'n'Vent® Downdraft
Ventilation System, Hoods, Ventilators, Housings, Dishwashers and Char-Glo® Outdoor Barbecues. Specifications are for planning purposes
only. Refer to installation instructions and consult your countertop supplier prior to making counter opening. Consult with a heating and
ventilating engineer for your specific ventilation requirements. For the most detailed information, refer to installation instructions
accompanying product or write Thermador indicating the model number.

Thermador reserves the right to change specifications or design without notice. Some models are certified for use in Canada. Thermador
is not responsible for products which are transported from the United States for use in Canada. Check with your local Canadian
distributor or dealer. Thermador, 5551 McFadden Avenue, Huntington Beach, CA 92649.

For the most up to date critical installation dimensions by fax, use your fax handset and call 702/833-3600. Use code #8030.

5551 McFadden Avenue, Huntington Beach, CA 92649 • 800/735-4328

ECO 14028 • 15-12-598D • © 2001 BSH Home Appliances Corp. • Litho U. S. A. 4/01

Page 12