Wolf CT15I Operating manual

© WOLF APPLIANCE, INC. 2008 ALL RIGHTS RESERVED Job Aid #806657 Revision C
Technical Service Manual
(Including Parts List & Exploded Views)
Induction Cooktop
CT15I

General Information
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SECTION 1
GENERAL INFORMATION

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INTRODUCTION
This Wolf Induction Cooktop Technical Service Manual, Part #806657, has been compiled to provide the most recent
technical service information about the Wolf Induction Cooktops. This information will enable the service technician
to troubleshoot and diagnose malfunctions, perform necessary repairs and return a Wolf Induction Cooktop to proper
operational condition.
The service technician should read the complete instructions contained in this Service Manual before initiating any
repairs on a Wolf Appliance.
IMPORTANT SAFETY INFORMATION
Below are the Product Safety Labels used in this manu-
al. 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.
TECHNICAL ASSISTANCE
If you should have any questions regarding a Wolf
appliance and/or this manual, please contact:
Wolf Appliance, Inc.
ATTN: Service Department
P.O. Box 44988
Madison, WI 53744-4988
Customer Service
Phone #: (800) 332 - 9513
Technical Assistance
Phone #: (800) 919 - 8324
Parts / Warranty Claims
Phone #: (800) 332 - 9513
Customer Service E-Mail Address
[email protected]
Customer Service & Technical Assistance
Facsimile #: (608) 441 - 5887
Parts / Warranty Claims
Facsimile #: (608) 441 - 5886
Office Hours:
7:00 AM to 7:00 PM Central Standard Time
Monday through Friday
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.
INDICATES THAT HAZARDOUS OR UNSAFE PRAC-
TICES 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 informa-
tion within each section.
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.

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TABLE OF CONTENTS
Page #
Section 1 - General Information
Introduction......................................................................... 1-2
Important Safety Information.............................................. 1-2
Technical Assistance...........................................................1-2
Table of Contents................................................................ 1-3
Section 2 - Installation Information
Electrical Requirements...................................................... 2-2
Maximum Connected Load................................................. 2-2
Pre-Installation Specifications........................................... 2-3
Countertop Location........................................................ 2-3
Overhead Cabinet Dimensions....................................... 2-3
Installation of Multiple Units............................................... 2-3
Installation Dimensions....................................................... 2-4
Area Requirements......................................................... 2-4
Installation Procedures....................................................... 2-5
Section 3 - Operation Information
Principles of Induction - Introduction...................................3-2
Principles of Induction - Operational Principles................. 3-3
Control Operation............................................................... 3-4
Residual Heat Indicators.....................................................3-4
Modes of Operation............................................................ 3-4
Lock Mode....................................................................... 3-4
Idle Mode......................................................................... 3-4
Element Operation............................................................. 3-5
Universal OFF Key.............................................................. 3-5
Cookware Selection............................................................ 3-6
Pan Test.............................................................................. 3-6
Special Considerations....................................................... 3-6
Section 4 - Component Access and Removal
Warnings and Cautions...................................................... 4-2
Major Serviceable Components..........................................4-2
Glass Top........................................................................... 4-3
Control Board..................................................................... 4-3
Element (Inducer) Units...................................................... 4-4
HSI (Hot Surface Indicator).................................................4-4
Generator Assy....................................................................4-5
Section 5 -Troubleshooting Guide
Diagnostics Mode............................................................... 5-2
Troubleshooting Guide........................................................ 5-3
Section 6 - Technical Data
Element Specifications........................................................6-2
Amperage Draw...................................................................6-2
Temperature Sensor............................................................6-2
Section 7 - Wiring Diagrams
CT15I Induction Cooktop Wiring Diagram...........................7-2
Section 8 - Parts and Exploded Views
CT15I Parts List.................................................................. 8-2
CT15I Exploded Views........................................................8-3

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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:
Electric heating elements
Electronic Control Boards
Warranty Details:
The warranty applies only to products installed for normal residential use. The warranty applies only to product
installed in the United States or Canada.
Warranty Notes:
• All warranties begin at the time of the unit’s 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, Inc.
VOLTS :
Hz :
MODEL# : XXXXXX-X
INDUCTION COOKTOP
FOR HOUSEHOLD USE ONLY
120/208
60
"DO NOT IMMERSE IN WATER" "NE PAS PLONGE DANS L'EAU"
FITCHBURG, WI
SERIAL# : XXXXXXXX
KW :
-2
120/240
X.X
X.X
3 WIRE

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MODEL NUMBER KEY
Refer to this key for an example of the model numbers.
Model: CT 15 I / S
Product Type
Size
Fuel
Feature (If Applicable)
Finish
Product Type
CT Cooktop
IM Integrated Gas
Multifunction Cooktop
IG Integrated Grill Cooktop
IS Integrated Steamer Cooktop
IF Integrated Fryer Cooktop
Size
15 15 - inch wide unit
30 30 - inch wide unit
36 36 - inch wide unit
Fuel
EElectric
IInduction
GNatural Gas
LP Propane Gas (Propane Gas will be indicated by -LP at the end of the model number. Example: CT36G/S-LP)
Finish
SClassic Stainless Steel
PPlatinum Stainless Steel (Not Available for IM, IG, IS and IF)
BCarbon Stainless Steel (Not available for gas models. Not available for IM, IG, IS and IF)

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MODEL CONFIGURATIONS
Model Numbers Descriptions
CT15I/S Cooktop 15” Induction, Stainless Steel Trim
15” Electric
MODEL FEATURES
• Illuminated control lighting.
• Graduated control lighting.
• Lock key and universal off.
• True simmer setting on all elements.
• Melt setting on all elements.
• Hot surface indicators on all elements.
• Finish available in classic stainless steel.
• Temperature limiter to ensure that safe operating temperature of glass ceramic is never exceeded.

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SECTION 2
INSTALLATION
INFORMATION

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Installation Information
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INDUCTION COOKTOP
INSTALLATION INFORMATION
This section of the manual covers some of the installation issues a service technician may need to know when serv-
icing a Wolf Induction Cooktop. If additional 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 - Induction
Nominal Voltage
CT15I – 240V/15amp / 60Hz - (20 Amp Service)
NOTE: 208VAC installation is not recommended.
Maximum Connected Load
CT15I – 3.6Kw (240V)
The Wolf Induction Cooktops require a separate, grounded three-wire service with their own circuit breaker. These
appliances must be installed in accordance with National Electrical Codes, as well as all state, municipal and local
codes. The correct voltage, frequency and amperage must be supplied to the appliance from a dedicated, grounded
circuit which is protected by a properly sized circuit breaker or time delay fuse. The proper voltage, frequency and
amperage ratings are listed on the product rating plate. The cooktops are provided with a 48" (1219 mm) conduit
consisting of two insulated hot lead conductors (copper) and one insulated ground conductor (copper).
THIS APPLIANCE MUST BE PROPERLY GROUNDED AT ALL TIMES WHEN ELECTRICAL POWER IS APPLIED.
DO NOT GROUND THE APPLIANCE WITH THE NEUTRAL (WHITE) HOUSE SUPPLY WIRE. A SEPARATE
GROUND WIRE MUST BE UTILIZED.
IF ALUMINUM HOUSE SUPPLY WIRING IS UTILIZED, SPLICE THE APPLIANCE COPPER WIRE TO THE ALU-
MINUM HOUSE WIRING USING SPECIAL CONNECTORS DESIGNED AND CERTIFIED FOR JOINING COPPER
AND ALUMINUM. FOLLOW THE CONNECTOR MANUFACTURES RECOMMENDED PROCEDURE CAREFUL-
LY. IMPROPER CONNECTION CAN RESULT IN A FIRE HAZARD.
TO ELIMINATE THE RISK OF BURNS OR FIRE BY REACHING OVER HEATED SURFACE UNITS, CABINET
STORAGE SPACE LOCATED ABOVE THE SURFACE UNITS SHOULD BE AVOIDED. IF CABINET STORAGE IS
TO BE PROVIDED, THE RISK CAN BE REDUCED BY INSTALLING A RANGE HOOD THAT PROTECTS HORI-
ZONTALLY A MINIMUM OF 5" (127 MM) BEYOND THE BOTTOM OF THE CABINETS.

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INDUCTION COOKTOP
PRE-INSTALLATION SPECIFICATIONS
Countertop Location
Dimension Description
AMinimum flat countertop surface. Must be equal to
or greater than cooktop width.
BMinimum 2-inches (152mm) wide clearance from
the cooktop side edge to any combustible surface
up to 18 inches (457mm) above the cooktop
(noted by shaded area).
CMinimum 2-inches (152mm) wide clearance from
the cooktop side edge to any combustible surface
up to 18 inches (457mm) above the cooktop
(noted by shaded area).
Overhead Cabinet Dimensions
Dimension Description
DMinimum spacing between cabinets directly over cooktop, must be greater than or equal to the nomi-
nal width of the cooktop unit.
EMinimum 18 inches (457mm) vertical distance from the countertop surface to the bottom of cabinets
adjacent to the cabinet directly above the cooktop unit.
FMinimum 24-inches (610mm) clearance between the top of the cooking surface and the bottom of
wood or metal cabinet which is protected by not less than 1/4-inch (6mm) flame retardant millboard
covered with not less than No. 28 MSG sheet steel, 0.015-inch (.4mm) stainless steel or 0.024-inch
(.5mm) copper. Minimum 30” (762mm) clearance between the top of the cooking surface and the bot-
tom of an unprotected wood or metal cabinet.
GMinimum 1-1/2-inches (38mm) from rear wall.
HMaximum 13-inch (330mm) depth of overhead cabinets.
D
H
E
A
B
C
F
G
Figure 2-2. Pre-Installation Specifications
3 1/4”
(83mm)
21”
(533mm)
15”
(381mm)
Figure 2-1. Overall Dimensions
NOTE: Dimension may vary by ± 1/8” (3mm).

INDUCTION COOKTOP
Countertop Cut-out Dimensions
This cooktop is designed to fit a standard 24" (610 mm) deep base
cabinet with a 25" (635 mm) deep countertop. Before making the
countertop cut-out, verify that the cooktop will clear the side walls of
the base cabinet below. There should be at least 5-1/2" (140 mm) to
7" (178 mm) clearance between the top countertop surface and any
combustible surface directly below the unit. This includes upper
edges of drawers located directly below unit. Refer to the following
illustrations for cut-out dimensions.
NOTE: Locate the junction box within reach of the 48" (1219 mm)
conduit, and so as to be accessible when the cooktop unit is
installed.
NOTE: Plastic or other utensils with low melting temperatures should
not be located in drawers directly below unit.
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Figure 2-4. Cut-out Dimensions
30"
(762)
13"
(330)
33" (838)
RECOMMENDED
CABINET WIDTH
NOTE: Dimensions in
parentheses are in millimeters.
E
6
1
/ 4 "
(159)
15"
(381)
15"
(381)
19
1
/ 4 " (489)
COOKTOP CUT-OUT
DEPTH
2
1
/ 2 " min
(64)
14" (356)
CUT-OUT
WIDTH
18"
(457)
3"
(76)
18"
(457)
3"
(76)
24" OR 30"*
(610 or 762)
TO COOKING
SURFACE
NOTE: Application shown allows for installation of two 15" (381 mm) modules side-by-side.
* Minimum 24" (610 mm) from protected cabinet or 30" (762 mm) from unprotected cabinet to cooking surface.
36" (914)
STANDARD
FLOOR TO
COUNTER
HEIGHT
RIGHT SIDE
CABINET VIEW
2
1
/ 2 " min
(64)
FRONT OF COUNTERTOP
19
1
/ 4 "
(489)
CUT-OUT
DEPTH
14"
(356)
CUT-OUT
WIDTH
NOTE: Dimensions in parentheses are in millimeters.
Figure 2-3. Overhead View of Countertop
NOTE: Dimension may vary by ± 1/8” (3mm).

INDUCTION COOKTOP
INSTALLATION PROCEDURE
Install
•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.
•To attach hold down brackets to the sides of the unit, insert
holddown clip into the rectangular punch-out in the pan and
push down.
•Install the clamping screws into the bracket and tighten until
screw contacts the underside of the countertop.
(See Figure 2-5).
NOTE: Do not over tighten screws.
NOTE: Do not use caulk or silicon to secure the unit to the countertop.
Installation of Multiple Cooktops
If this cooktop is to be used with any combination of additional cooktop units or modules with a filler strip, the cut-out
width is calculated by adding the corresponding units' cut-out dimensions plus 1-1/4" (32 mm) for each additional
unit. (See Figure 2-6).
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2-5
3
1
/ 2 " (89 mm)
CLAMPING
SCREW
COOKTOP COUNTERTOP
BRACKET
CLIP
Figure 2-5. Attaching Hold Down Clamp
2
1
/ 2 " min
(64)
FRONT OF COUNTERTOP
19
1
/ 4 "
(489)
CUT-OUT
DEPTH
29
1
/ 4 " (743)
TWO MODULES WIDTH
44
1
/ 2 " (1130) THREE MODULES WIDTH
59
3
/ 4 " (1518) FOUR MODULES CUT-OUT WIDTH
14"
(356)
CUT-OUT
WIDTH
NOTE: Dimensions in parentheses are in millimeters.
(See Design Guide)
(See Design Guide)
Figure 2-6. Multiple Cooktop Installation

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IInndduuccttiioonnCCooookkttooppOperation Information
3-1
SECTION 3
OPERATION
INFORMATION

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Operation Information
3-2
IF A CRACK APPEARS IN THE GLASS SURFACE, DISCONNECT THE APPLIANCE IMMEDIATELY TO AVOID
ANY RISK OF ELECTRICAL SHOCK.
NEVER USE COOKING SURFACE AS A STORAGE SPACE OR CUTTING BOARD.
NEVER ALLOW POWER CABLES FOR OTHER ELECTRICAL APPLIANCES TO TRAIL ACROSS THE COOK-
ING SURFACE.
DO NOT LEAVE EMPTY PANS ON THE COOKING SURFACE IN CASE OF RESIDUAL HEAT OR IF THE UNIT
IS TURNED ON BY MISTAKE.
PRINCIPLES OF INDUCTION
Introduction
There are two techniques of glass-ceramic heating:
• Infrared.
• Induction.
The difference is only obvious once the cooking zones are
turned on. The Infrared one glows red while the the induc-
tion doesn’t seem to operate.
The Infrared is provided with radiant or halogen sources
that transmit heat by radiation or conduction. Induction
Cooktops produce a magnetic field which passes through
the glass ceramic to the pan. When ferro magnetic cook-
ware is used, this magnetic field excites the molecules in
the pan, causing them to vibrate at a very high frequencies,
producing heat.
The principles of heating by induction is a natural phenomenon discovered in the 19th century by several physicists,
among whom a certain Leön Foucault. He highlighted the development of currents facing the magnetic field in a
moving metallic mass or a fixed metallic mass run though by a variable magnetic flux. These eddy currents compa-
rable to short-circuits cause a heating effect (Joule effect) in the mass.
The operating principle is innovating. Contrary to other cooking modes, it is the container itself, which heats and not
the cooking surface. This results in a very responsive method of cooking.
You put a saucepan on the cooking zone that is sufficient to initiate the heat while the cooking surface remains cool.
the heating element is nothing but the container metal, which transforms the magnetic energy into thermal energy.
Induction qualities are flexibility, low inertia, easy cleaning, good efficiency and thermal safety. Induction efficiency
may reach up to 90% according to the types of cooking. With such a technique, the container only heats. Inertia is
therefore low, and above all, the plate stepping from the mildest temperature to the strongest power, in an instant
and while diffusing heating a homogeneous way, attracts more and more consumers.
+
-
Induced currents
Induced currents
Electronic circuit
Electronic circuit
Induction coil
Induction coil
Figure 3.1. Principles of Induction

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3-3
PRINCIPLES OF INDUCTION
Operational Principles
An induction cooktop operates thanks to the electromagnetic properties of most containers used on the traditional
cooktop.
At a first approximation, you can compare this cooktop with a transformer of which the secondary winding would
have been shorted. A significant internal current arises therein and causes quick heating.
1
2
3
4
5
6
The saucepan can be compared with a shorted set of concentric whose internal resistance is not
zero.
From the function keys, you can control the electrical power supply to the transformer primary
winding that generates a magnetic field. This field induces currents at the bottom of the contain-
er placed on the cooking zone. These induced currents heat immediately the container, which
transmits the produced heat to the food contained inside. Cooking is performed practically with-
out any loss of energy. The appliance heating power is pushed to its maximum.
Figure 3.2. Operation Principles
TRANSFORMER INDUCTION UNIT
Magnetic Conductor 1 Saucepan
Secondary Winding 2 Saucepan
Gap 3 Glass-Ceramic Plate
Primary Winding 4 Inductor (Element)
Magnetic Conductor 5 Ferrite
Magnetic Field 6 Magnetic Field

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INDUCTION COOKTOP OPERATION
Control Operation
The Wolf Induction cooktop operates by automatically cycling the heating elements between zero power and full
power. As the heat is increased on the control panel, the element will stay on at full power for longer periods and
the element will have shorter periods of zero power.
Residual Heat Indicators
As an added safety precaution, residual heat indicator lights will illuminate when the surface temperature of the
glass is above 150°F. Each heating element has an independently controlled light located to the right of that ele-
ment. Even if the cooktop controls are turned off, the indicator light(s) will illuminate to show the user that the cook-
top surface remains hot.
Modes of Operation
Lock Mode: All keypad operation on the control panel is disabled and all of the heating elements are
de-energized. A steady glowing light within the "key" symbol indicates the unit is locked.
• To unlock the control, touch and hold the "key" symbol for 3 seconds. The unit will beep twice and the light
with-in the "key" symbol will go out. The control unit is now in the idle mode. (See Figure 3-4).
• To lock the control, touch and hold the "key" symbol for three seconds. The unit will beep three times
and the light within the "key" symbol will illuminate. (See Figure 3-4).
NOTE: When the unit is powered up for the first time or if there was a power outage, the unit will default to this
mode.
Idle Mode: After unlocking the control panel as described in Lock Mode, the unit enters the idle mode of operation.
The only valid keypad operations are the "OFF /ON" for each element and the "key" symbol.
MELT OFF/ON HIGH
H
I
P
O
W
E
R
+
-
MELT OFF/ON HIGH
+
-
OFF
MELT OFF/ON HIGH
H
I
P
O
W
E
R
+
-
MELT OFF/ON HIGH
+
-
OFF
Figure 3-3. Control Panel Figure 3-4. Lock Key

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3-5
Front Element Operation
To activate a heating element, you must first touch the corresponding "OFF/ON" area of the desired element. The
power indicator bar graph will begin to blink and show a half power status. To complete the activation of heating ele-
ment, you must do one of the following while the bar graph is still blinking:
• Touch "+" symbol of the element control to complete the activation and set the power output one
indicator light above half mark.
• Touch "-" symbol of the element control to complete the activation and set the power output one indicator light
below half mark.
• Touch "HIGH" symbol of the element control to complete the activation and set the power output to full power.
•Touch "MELT" symbol of the element control to complete the activation and set the power output to the lowest
power.
NOTE: Power indicator bar graph continues to blink until cookware is placed on the corresponding element or if
cookware is removed from the element. If no cookware is placed on the heating element for 30 seconds, the ele-
ment will automatically shut off.
To change power level setting, once the unit is activated and the bar graph lights remain steady on:
• Touch “+” to increase the power level by one light on the bar graph.
• Touch “-” to decrease the power level directly to full power.
• Touch "HIGH" to increase power level directly to full power.
• Touch“MELT” to decrease power level directly to minimum.
• Touch “OFF/ON” to turn the element off.
Rear Element Operation
•Turn on and activate element as described above.
• Touch “HI POWER” to boost the rear element wattage
output from 1800W maximum to 2200W maximum.
Indicator light under “HI POWER” touch pad will be
illuminated.
NOTE: When “HI POWER” is active, the front element will
be limited to 600W maximum output.
• Touch “HI POWER” again to de-activate “HI POWER”
mode. The light under “HI POWER” touch pad will go
out.
Universal OFF Key
In an emergency situation where there is a need to turn
off all heating elements, use the universal “OFF” touch
pad to turn the entire unit off. (See Figure 3-5).
MELT OFF/ON HIGH
H
I
P
O
W
E
R
+
-
MELT OFF/ON HIGH
+
-
OFF
Figure 3-5. Universal OFF

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COOKWARE SELECTION:
Glass, Aluminum, Copper, Non-Magnetic Stainless Steel
NOTE: Refer to “USE & CARE INFORMATION” booklet supplied with the product for further information on cook-
ware selection.
Pan Test:
Place your pan on a zone. With the selected zone turned on the display will not flash if the pan is compatible. If the
display flashes then you cannot use the pan for Induction Cooking.
NOTE: You can also test the pans compatibility with a magnet. If the magnet sticks to the bottom of the pan it is
compatible for Induction cooking.
Pan Compatible with Induction:
• Pans made of enamel coated steel with or without a non-stick coating.
• Cast iron pans with or without enamel coated base.
NOTE: Enamel coated base will prevent the glass top of your cooking surface from scratches.
• Stainless steel pans designed for induction cooking.
NOTE: Stainless steel pans are suitable for induction cooking if they pass the pan test.
• Aluminum pans with special base.
NOTE: Pans which do not have a flat base may be suitable, however they must not be deformed too badly.
• Choose a pan marked with the logo on its base or
packaging to be sure that it is perfectly suitable for use
on your induction cooktop under normal conditions of
use. (See Photo 3-1) Photo 3-1. Induction Logo
SPECIAL CONSIDERATIONS:
• Glass, ceramic, earthenware pans, aluminum pans (Without special base) and copper pans, and some non-mag-
netic stainless steel pans are incompatible with induction cooking. You will be informed by the flashing display.
• For uniform cooking, use of a pan that has a thick flat base is best due to it distribution of heat.