Wolf CT15G/S, CT15G/S-LP, CT30G/S, CT30G/S-LP, CT30G/P Service Manual

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CT Gas Cooktop

Service Manual

General Information 2
Installation Information 6
Controls & Operation 13
Component Access & Removal 18
Troubleshooting Guide 26
Technical Data 29
Wiring Diagrams 31

Gas Cooktop (CTG) Series

Gas Cooktop (CTG) Series

General Information

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#802985 - Revision E - August, 2011

INTRODUCTION

This manual has been compiled to provide the most recent technical service information about this series. This
information will enable the service technician to troubleshoot and diagnose malfunctions, perform necessary repairs
and return a Wolf Gas Cooktop to proper operational condition.

The service technician should read the complete instructions contained in this Service/Training Manual before initiat­ing any repairs on a Wolf Appliance.

* Some information in Section 2, Theory of Operation, has been provided by the American Gas Association

and reprinted with their approval.

IMPORTANT SAFETY INFORMATION

Below are the Product Safety Labels used in this manu­al. The "Signal Words" used are WARNING and
CAUTION.

Please note that these safety labels are placed in areas
where awareness of personal safety and product safety
should be taken and lists the precautions to be taken
when the signal word is observed.

INDICATES THAT HAZARDOUS OR UNSAFE
PRACTICES COULD RESULT IN SEVERE PERSON­AL INJURY OR DEATH.

Indicates that hazardous or unsafe practices could
result in minor personal injury or product and/or
property damage.

In addition, please pay attention to the signal word
“NOTE”, which highlights especially important informa­tion within each section.

TECHNICAL ASSISTANCE

If you should have any questions regarding the appli­ance and/or this manual, please contact:

Wolf Appliance, Inc.

ATTN: Service Department

P.O. Box 44988

Madison, WI 53744 - 4988

Customer Assistance

Phone #: (800) 332 - 9513

Facsimile #: (608) 441 - 5887

Technical Assistance

(For Technicians in Customer’s Homes Only)

Phone #: (800) 919 - 8324

Warranty Claims

Phone #: (800) 404 - 7820

Facsimile #: (608) 441 - 5886

Service Department e-mail Address:

[e-mail]

Main Office Hours:

8:00 AM to 5:00 PM Central Time

Monday through Friday
(24/7 Phone Coverage)

This manual is designed to be used by Authorized Service Personnel only. Wolf Appliance, Inc.. assumes
no responsibility for any repairs made to Wolf appliances by anyone other than Authorized Service
Technicians.

The information and images are the copyright property of Wolf Appliance, Inc., an affiliate of Sub-Zero, Inc. Neither

this manual nor any information or images contained herein may be copied or used in whole or in part without the

express written permission of Wolf Appliance, Inc., an affiliate of Sub-Zero, Inc. © Wolf Appliance, Inc. all rights

reserved.

Gas Cooktop (CTG) Series

Gas Cooktop (CTG) Series

General Information

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#802985 - Revision E - August, 2011

WARRANTY INFORMATION

This page contains a summary of the 2 & 5 Year
Warranty that is supplied with every Wolf product,
followed by details and notes about the warranties.

TWO & FIVE YEAR Warranty Summary

• Two year TOTAL PRODUCT warranty, parts and
labor.

• Limited Parts Only Warranty for the 3rd through
5th year on the following parts only:

• Gas Burners (excluding appearance).

Warranty Details:

The warranty applies only to products installed for
normal residential use. The warranty applies only to
products installed in the United States or Canada.

Warranty NOTES:

• All warranties begin at the time of the initial
installation.

• All Warranty and Service information collected by
Wolf Appliance, Inc.. is arranged and stored
under the unit serial number and/or the cus­tomer’s name. Please note that Wolf Appliance,
Inc. requests that you have the model serial
number available whenever contacting the facto­ry or parts distributor.

• See Figure 1-1 for serial tag layout.

• See Figure 1-2 for serial tag location.

Wolf Appliance Company, LLC
FITCHBURG, WI

GAS

LEFT
REAR

LEFT
FRONT

VOLTS

CENTER
REAR

CENTER
FRONT

AMP

PRESS.

MAIN

REAR

RIGHT

FRONT

RIGHT

HERTZ

ELECTRICAL RATING

000

000

60

INPUT RATING EACH
BURNER-BTU/HR.

MODEL

NO.

SERIAL

ANSI Z21.1 2000 "HOUSEHOLD GAS COOKING APPLIANCES"

"CAN1-1.1-M81"

BD

801503

Figure 1-1. Typical Serial Tag Layout

Figure 1-2. The serial tag is located on the bottom of

the cooktop.

Serial Tag Location

General Information

Gas Cooktop (CTG) Series

Gas Cooktop (CTG) Series

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#802985 - Revision E - August, 2011

MODEL NUMBER KEY

Refer to this key for an example of the model numbers.

Model: CT 36 G / S

Product Type

Size

Fuel

Finish

Product T

ype

CT Cooktop

Size

15 15'' - inch wide unit

30 30'' - inch wide unit

36 36'' - inch wide unit

Finish

S Classic Stainless Steel

P Platinum Stainless Steel (Not Available for IM, IG, IS and IF)

B Carbon Stainless Steel (Not available for Gas models. Not available for IM, IG, IS and IF)

Fuel

(If Applicable)

LP Liquid Propane Gas

Natural Gas (If there is no “LP” at End of Model Number)

Gas Cooktop (CTG) Series

Gas Cooktop (CTG) Series

General Information

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#802985 - Revision E - August, 2011

MODEL CONFIGURATIONS

Model Numbers

Descriptions

CT30G/S Cooktop 30” Gas Stainless Steel Natural Gas
CT30G/S- LP Cooktop 30” Gas Stainless Steel Propane
CT30G/P Cooktop 30” Gas Platinum Stainless Steel Nat Gas
CT30G/P- LP Cooktop 30” Gas Platinum Stainless Steel Propane

• Four burner

• Two burners at 12,000 BTU
700 BTU’S delivered at simmer

• Two burners at 9,200 BTU
300 BTU’s delivered at simmer

30” Gas

36” Gas

Model Numbers

Descriptions

CT36G/S Cooktop 36” Gas Stainless Steel Natural Gas
CT36G/S- LP Cooktop 36” Gas Stainless Steel Propane
CT36G/P Cooktop 36” Gas Platinum Stainless Steel Nat Gas
CT36G/P- LP Cooktop 36” Gas Platinum Stainless Steel Propane

• Five burner

• Two burners at 12,000 BTU
700 BTU’S delivered at simmer

• Three burners at 9,200 BTU
300 BTU’s delivered at simmer

Model Numbers Descriptions

CT15G/S Cooktop 15” Gas Stainless Steel Natural Gas
CT15G/S- LP Cooktop 15” Gas Stainless Steel Propane

• Two burner

• One burner at 12,000 BTU
700 BTU’S delivered at simmer

• One burner at 9,200 BTU
300 BTU’s delivered at simmer

15” Gas

General Information

Gas Cooktop (CTG) Series

Gas Cooktop (CTG) Series

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MODEL FEATURES for 15”, 30” & 36” GAS COOKTOPS

• Simmer on all burners

• Dual stacked sealed burners

• Single spark ignition with auto reignition for all burners

• 12,000 BTU/hr and 9,200 BTU/hr burners

• Low profile, continuous, porcelain-coated cast iron grates

• Smart porting of all burners

• Back lit illuminated control panel.

• Electric ratings: 110-120V/ 15 amp circuit

• Available in Natural or LP gas

• Two and Five year warranty

Gas Cooktop (CTG) Series

Gas Cooktop (CTG) Series

Installation Information

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#802985 - Revision E - August, 2011

INSTALLATION INFORMATION

This section of the manual covers some of the installation issues that a service technician may need to know when
servicing a Wolf Gas Cooktop. If additional installation information is needed after reviewing this section of the man­ual, please refer to the Installation Guide or contact the Wolf Appliance Customer Service Department.

Electrical Requirements:

• 110-120 volts AC, 60 Hertz, 15 ampere fused electrical supply.

• A timed-delay fuse or circuit breaker is recommended.

• Separate circuit serving only this appliance.

• Installation site must be equipped with a properly grounded 3-prong receptacle.

This appliance when installed must be properly grounded. This appliance is equipped with a 3-prong (grounding)
plug. The power cord must be plugged into a mating 3-prong ground-type receptacle (See Figure 2-1).
If a mating receptacle is not available, it is the obligation of the customer to have a properly grounded, 3-prong
receptacle installed by a qualified electrician.

If the electric receptacle or the power cord are not properly grounded and polarized, a shock hazard could exist and
the appliance may experience ignition problems.

• A SHOCK HAZARD COULD EXIST IF THE ELEC­TRIC RECEPTACLE OR THE POWER CORD ARE
NOT PROPERLY GROUNDED AND POLARIZED.

• TO AVOID SHOCK HAZARD, NEVER REMOVE
THE GROUNDING PRONG FROM THE PLUG OF
THE POWER CORD.

Figure 2-1. Proper Polarity at Electric Receptacle

Grounding Type
Wall Receptacle

Neutral

Ground

Line

Voltage

(Power)

The appliance may experience ignition problems if
not properly grounded and polarized.

Installation Information

Gas Cooktop (CTG) Series

Gas Cooktop (CTG) Series

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#802985 - Revision E - August, 2011

GAS REQUIREMENTS:

NOTE: All Wolf gas appliances are manufactured to
work with natural gas or LP gas (Liquid Propane gas).

Natural Gas Manifold Pressure

Standard natural gas orifices on the appliance are set
for 5” WC (Water Column Pressure).

Liquid Propane Manifold Pressure

The standard propane gas orifices on the appliance are
set for 10” WC (Water Column Pressure).

Gas Supply Line Size

• 1/2 inch

Gas Supply Pressure

• Maximum line pressure for natural gas and LP is

14” WC; 1/2 psi (3.5 kPa).

• Minimum line pressure for natural gas is 7” WC.

• Minimum line pressure for LP gas is 11” WC.

Gas Shut-off Valve

The supply line must be equipped with an approved
shut-off valve. This valve should be located in accor­dance to all national, local codes and ordinances (See
Figure 2-2).

NEVER USE OPEN FLAMES TO CHECK FOR GAS
LEAKS. ONLY USE A LEAK TESTING SOLUTION
OF SOAPY WATER OR AN ELECTRONIC LEAK
DETECTOR. DO NOT USE LIQUID NEAR VALVE
STEMS.

The maximum gas supply pressure to the regulator
should never exceed 14” WC (Water Column
Pressure); 1/2 psi (3.5kPa).

Shut-off Valve

(open position)

To Cooktop

Gas Supply Line

Figure 2-2. Shut-off Valve

Gas Pressure Regulator

To control and maintain a uniform gas pressure in the­gas manifold, Wolf gas appliances must be connected
to the gas supply line through a pressure regulator.
The burner orifices are sized for the pressure delivered
by the regulator. Never attempt to operate a Wolf gas
appliance without the use of the proper pressure regu­lator.

Leak Testing

Gas Cooktop (CTG) Series

Gas Cooktop (CTG) Series

Installation Information

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#802985 - Revision E - August, 2011

15” AND 30” GAS COOKTOP INSTALLATION DIMENSIONS

Area Requirements:

NOTE: Countertop opening dimensions that are shown must be used. Given dimensions provide required clear-

ances.

E

21/2"

min

(6.4)

15"

(38.1)

15"

(38.1)

14"*

(35.6)

4"

(10.2)

5"

(12.7)

G

* Dimensions may vary

by ± 1/8" (.3 cm)

13"

(33.0)

24" or 30"***

18"**

(45.7)

Combined width
of all cooktops

(61.0 or 76.2)

to cooking surface

7"

(17.8)

7"

(17.8)

"*

19

1

/

4

(49.0)

** 18” (45.7cm) minimum clearance upper cabinet to countertop within 7” (17.8cm) minimum side clearance to

combustible surface above countertop.

*** 24” (61cm) minimum clearance between top of cooking surface and bottom of wood or metal cabinet which is

protected by not less than 1/4” (.6cm) flame retardant millboard covered with not less than No. 28 MSG sheet
steel, .015” (.04cm) stainless steel, or .024” (.06cm) aluminum or .02” (.05cm) copper.

*** 30” (76.2) minimum clearance between top of cooking surface and bottom of an unprotected wood or metal

cabinet.

NOTE: Do not seal cooktop to countertop.

15” Installation Dimensions

E

31/2"

(8.9)

10"

(25.4)

4"

(10.2)

10"

(25.4)

29"*

(73.7)

191/4"*

(48.9)

21/2"

min

(6.4)

31/2"

min

(8.9)

30" oven cutout location

43/4"

min

(12.1)

E

G

* Dimensions may vary

by ± 1/8" (.3 cm)

30"

(76.2)

13"

(33.0)

24" or 30"***

(61.0 or 76.2)

18"**

(45.7)

to cooking surface

30” Installation Dimensions

Installation Information

Gas Cooktop (CTG) Series

Gas Cooktop (CTG) Series

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36” GAS COOKTOP INSTALLATION DIMENSIONS

Area Requirements:

NOTE: Countertop opening dimensions that are shown must be used. Given dimensions provide required clear-

ances.

** 18” (45.7cm) minimum clearance upper cabinet to countertop within 7” (17.8cm) minimum side

clearance to combustible surface above countertop.

*** 24” (61cm) minimum clearance between top of cooking surface and bottom of wood or metal cabinet which is

protected by not less than 1/4” (.6cm) flame retardant millboard covered with not less than No. 28 MSG sheet
steel, .015” (.04cm) stainless steel, or .024” (.06cm) aluminum or .02” (.05cm) copper.

*** 30” (76.2) minimum clearance between top of cooking surface and bottom of an unprotected wood or metal

cabinet.

NOTE: Do not seal cooktop to countertop.

36" oven cutout location

191/4"*

(48.9)

35"*

(88.9)

E

21/2"

min

(6.4)

31/2"

(8.9)

10"

(25.4)

4"

(10.2)

10"

(25.4)

31/2"

min

(8.9)

73/4"

min

(19.7)

E

G

* Dimensions may vary

by ± 1/8" (.3 cm)

36"

(76.2)

13"

(33.0)

24" or 30"***

(61.0 or 76.2)

18"**

(45.7)

to cooking surface

36” Installation Dimensions

Gas Cooktop (CTG) Series

Gas Cooktop (CTG) Series

Installation Information

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#802985 - Revision E - August, 2011

INSTALLATION PROCEDURE

• Insert cooktop into countertop opening and center

cooktop. Check that the front edge of the cooktop is
parallel to the front edge of the countertop. Check
that all required clearances are met.

• Use a pencil to outline the rear of the cooktop on

the countertop. Then remove cooktop from coun­tertop.

• Apply foam strip around bottom of burner box flush

with the edge (See Figure 3-8).

• Reinsert cooktop into the countertop opening.

Check that the cooktop is parallel to the front edge
of the countertop. Lift the entire cooktop to make
adjustments, aligning with the pencil line.

• Attach brackets to the burner box. Insert the

clamping screws into the brackets. Use a screw­driver to tighten clamping screws against the under­side of the countertop (See Figure 3-8).

NOTE: Do not overtighten screws.

• Install the pressure regulator with the arrow on the

regulator pointing up towards the unit and in posi­tion where you can reach the access cap (See

Figure 3-9).

• Assemble the flexible metal connector from the gas

supply pipe to the pressure regulator (See Figure

3-10).

• Use a pipe-joint compound made for natural and

LP gas. If a flexible connector is used, be certain
the tubing is not kinked.

NOTE: All connections must be wrench tightened.

Do not make the connections to the regulator too
tight. Making the connections too tight could crack
the pressure regulator. Do not allow regulator to
turn on the pipe when tightening fittings.

• Open the shut-off valve in the supply line. Wait a

few minutes for the gas to move through the line.

• Leak testing of the appliance shall be conducted

accordingly using a soapy water solution or an
electronic leak detector.

The maximum gas supply pressure to the regulator
should never exceed 14” WC (Water Column
Pressure); 1/2 psi (3.5kPa).

NEVER USE OPEN FLAMES TO CHECK FOR GAS
LEAKS. ONLY USE A LEAK TESTING SOLUTION
OF SOAPY WATER OR AN ELECTRONIC LEAK
DETECTOR. DO NOT USE LIQUID NEAR VALVE
STEMS.

Regulator

Gas Flow

Arrow

Points Up

Rear of Burner Box

Figure 2-8. Foam Strip

Figure 2-10. Regulator Flow Arrow

Figure 2-11. Gas Connection

Manual

Shut-off Valve

1/2" Adapter 1/2" Adapter

Pressure

Regulator

1/2" Nipple

(use pipe-joint compound)

1/2" Nipple

(use pipe-joint compound)

Flexible Metal Connector

Burner Box

Cooktop Pan

Foam Strip

Cooktop Pan

Countertop

Burner Box

Bracket

Bracket Screws

3" (6.4cm)

Clamping Screw

Figure 2-9. Holding Clamp