Subzero WOLF ICB WS Series User manual

General Information 2
Installation Information 6
Controls & Operation 14
Sealed System 34
Air Flow & Fan Blade Spacing 39
Component Access & Removal 40
Troubleshooting Guide 58
Technical Data 71
Wiring Diagrams 72
subzero.com 800.222.7820
ICB WS Series
Service Manual

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General Information International W
International Wine Storage ine Storage (ICBWS)
(ICBWS) Series Series
IMPORTANT SAFETY INFORMATION
Below are Product Safety Labels used in this manual.
The "Signal Words" used are WARNING or CAUTION.
When reviewing this manual, please note these differ-
ent Product Safety Labels placed at the beginning of
certain sections of this manual. You must follow the
instructions given in the boxes of the Product Safety
Labels in order to avoid personal injury and/or product
damage.
The sample Product Safety Labels below illustrate the
precautions that should be taken when the signal word
is observed.
INTRODUCTION
This Technical Service Manual has been compiled to provide the most recent service information for International
Wine Storage (ICBWS) Series appliances. The information in this manual will enable the service technician to diag-
nose malfunctions, perform necessary repairs, and return an ICBWS Series unit to proper operational condition.
The service technician should read the complete instructions contained in this manual before initiating any repairs.
INDICATES THAT HAZARDOUS OR UNSAFE
PRACTICES COULD RESULT IN SEVERE PERSON-
AL INJURY OR DEATH!
Indicates that hazardous or unsafe practices could
result in minor personal injury, and/or product
damage, and/or property damage!
In addition, please pay attention to the signal word
“NOTE”, which highlights information that is especially
important for the topic being covered.
This manual is designed to be used by Authorized Service Personnel only. Sub-Zero, Inc. assumes no
responsibility for any repairs made on Sub-Zero refrigeration units by anyone other than Authorized
Service Technicians.
The information and images contained in this manual are the copyright property of Sub-Zero, Inc. Neither this man-
ual nor any information or images contained herein may be copied or used in whole or in part without the express
written consent of Sub-Zero, Inc.©, all rights reserved.
TECHNICAL ASSISTANCE
With questions regarding a Sub-Zero appliance and/or
this manual, please contact:
Sub-Zero, Inc.
ATTN: Service Department
P.O. Box 44988
Madison, Wisconsin, USA, 53744-4988
Customer Service & Parts / Warranty Claims
Domestic Toll Free Phone #: (800) 222 - 7820
International Toll Charge Phone #: (608) 271 - 2233
Technical Assistance
Domestic Toll Free Phone #: (800) 919 - 8324
International Toll Charge Phone #: (608) 271 - 2233
Customer Service & Technical Assistance
International Toll Charge Facsimile #: (608) 441 - 5887
Parts / Warranty Claims
International Toll Charge Facsimile #: (608) 441 - 5886
Service Department e-mail Address
[email protected]
Office Hours:
7:00 AM to 7:00 PM Central Time
Monday through Friday

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General Information
International W
International Wine Storage ine Storage (ICBWS)
(ICBWS) Series Series
Serial Tag Location Control Panel
Figure 1-1. Serial Tag Location
Figure 1-1. Serial Tag Layout
APR 2009
F3000000ICBWS-30
MADISON, WISCONSIN
SUB-ZERO, INC.
MADE IN THE USA
R134a
REFRIGERANT
SERIAL NUMBERMODEL
TOTAL AMPS
1.0 A
0.13 Kg
FREQUENCY
VOLTAGE
220-240
50/60 Hz
BOTTLE STORAGE
Model Number Serial Number Manufacture Date
Refrigerant Charge Total Amps Refrigerant Type
WARRANTY INFORMATION
The ICBWS Series carries no factory warranty.
However, the Product Distributor or the Appliance
Dealer may offer their own warranty. For this reason
the model and serial number may be important informa-
tion. See Serial Tag Layout diagram below.
NOTE: The serial number tag for models ICBWS-30 is
located on the bottom side of the compartment divider,
directly behind the control panel. (See Figures 1-1 and
1-2)

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General Information International W
International Wine Storage ine Storage (ICBWS)
(ICBWS) Series Series
Home security
tie-in
Discreet lighting
Lighted electronic
control panel
Display shelf
Roller-assembly
shelves
Hermetically sealed
refrigeration system
Full-view glass
door
UV-resistant glass
Divider gasket
Location of rating
plate
Removable
kickplate
MODEL # MODEL DESCRIPTION
ICBWS-30/F International CB Approved Wine Storage - 30” Wide / Framed Panel Application Door
ICBWS-30A/F International CB Appr Wine Storage - 30” Wide with High Altitude Glass / Framed Panel Application Door
ICBWS-30/O International CB Approved Wine Storage - 30” Wide / Overlay Panel Application Door
ICBWS-30A/O International CB Appr Wine Storage - 30” Wide with High Altitude Glass / Overlay Panel Application Door
ICBWS-30/S/TH International CB Approved Wine Storage - 30” Wide / Stainless Steel Door / Tubular Handle
ICBWS-30A/S/TH International CB Appr Wine Storage - 30” Wide with High Altitude Glass / Stainless Steel / Tubular Handle
ICBWS-30/S/PH International CB Approved Wine Storage - 30” Wide / Stainless Steel Door - Pro Handle
ICBWS-30A/S/PH International CB Approved Wine Storage - 30” Wide with High Altitude Glass / Stainless Steel / Pro Handle
ICBWS-30/S/CH International CB Approved Wine Storage - 30” Wide / Stainless Steel Door / Curved Handle
ICBWS-30A/S/CH International CB Appr Wine Storage - 30” Wide with High Altitude Glass / Stainless Steel / Curved Handle
NOTE: A “-RH” or “-LH” at the end of the model number indicates Right-Hand or Left-Hand swing, respectively.
MODEL DESCRIPTIONS
This section briefly describes the models covered in this Technical Service Manual.
NOTE: Functional parts are common to each model configuration, meaning for example, models ICBWS-30/F,
ICBWS-30/O, ICBWS-30/S/TH, etc., will utilize common functional parts. For this reason, only the basic model num-
ber (Model ICBWS-30) is used in this manual, unless otherwise specified.

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General Information
International W
International Wine Storage ine Storage (ICBWS)
(ICBWS) Series Series
Wine Storage Temperature Table
The table below shows the temperature range of the Wine Storage Units along with general recommendations on
temperatures for “serving” wines. Serving wines at the recommended temperatures will insure that white wines
maintain their lively and interesting taste, and red wines will maintain their scent and flavor.
NOTE: For “long term storage” of all wines, the ideal temperature is 13°c (55°F).
Bordeaux 17° 63°
Red Burgundy 16° 61°
Beaujolais 12° 54°
Sherry 11° 52°
Rosés 9° 48°
Dry White Wines 9° 48°
Champagne 8° 46°
Sweet White Wines 6° 43°
Sparkling Wines 5° 41°
Minimum Temperature 3° 38°
Celsius Fahrenheit
General Wine Description with
Recommended Serving Temperatures
Maximum Temperature 18° 65°

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Installation Information International W
International Wine Storage ine Storage (ICBWS)
(ICBWS) Series Series
INSTALLATION CONSIDERATIONS
This section uses some of the information in the ICBWS Series Installation Guide to address common installation
issues seen by Service Technicians. Improper installation, though not a valid service issue, has the potential to lead
to a call for service. Installation related complaints could include, but are not limited to: Unit leveling, unit move-
ment, door misalignment, improper door and drawer sealing, internal frost or condensation, exterior condensation,
warm compartment temperatures, etc.
The model ICBWS-30 is built on the ICBBI series platform, thus it has the following design alternatives: framed,
overlay and stainless steel models. The overlay design has two possible installation applications - standard overlay
and flush inset. Each of these design options has specific installation requirements, which means it is vital that the
unit match the planning and space needs.
NOTE: If additional installation information is needed, refer to the complete Installation Guide, or contact the Sub-
Zero Customer Service Department.
Tools and Materials Required
The following is a list of tools and materials that will assist in a proper installation.
• Phillips screwdriver set
• Slotted screwdriver set
• 6-Lobe, Torx type drive screwdriver set
• 4' (1.2 m) of 1/4" copper tubing and saddle
• Level - 2' (.6 m) and 4' (1.2 m) recommended
• Appliance Dolly able to support 700 lbs (317 kg) and adequate manpower to handle the weight of the unit
• Various sized pliers
• Wrench set
• Allen wrench set
• 5/16" hex bolt nut driver
• Crescent wrenches
• Cordless drill and assorted drill bits
• Masonite, plywood, 1/8" pressed fiberboard, cardboard or other suitable material to protect finished flooring
• Appropriate materials to cover and protect the home and its furnishings during installation
Site Preparation
The finished rough opening where the ICBWS Series unit is to be installed must be properly prepared. Refer to the
Finished Rough Opening Specifications on the following pages. The specifications for the framed, overlay and stain-
less steel applications are identical. The Finished Rough Opening Specifications are different for the flush inset
application, whether using custom panels or Sub-Zero accessory stainless flush inset panels. Make sure that the
rough opening dimensions, door swing clearance and electrical service are correct for the model being installed.
If installing two ICBWS-30 units or an ICBWS-30 and an ICBBI unit side by side in the framed, overlay or stainless
steel application, a separating filler strip is recommended. Add the filler strip width to the finished rough opening
dimension, and ALWAYS complete the installation with the Anchoring Kit components.
For installation of two ICBWS-30 units or an ICBWS-30 and a Built-In unit side by side in the flush inset application,
a dual installation kit will be necessary.
IMPORTANT NOTE: ICBWS-30 and ICBBI Series units installed side by side in the flush inset application cannot
use the standard Sub-Zero accessory overlay panels, and must have opposing hinges.
IMPORTANT NOTE: To operate properly, the door must open a minimum of ninety (90) degrees. Use a minimum 3"
(76 mm) filler in corner installations to assure a ninety (90) degree door opening. Allow enough clearance in front of
the unit for full door swing.
IMPORTANT NOTE: Make sure the floor under the unit is level with the surrounding finished floor.

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Installation Information
International W
International Wine Storage ine Storage (ICBWS)
(ICBWS) Series Series
INSTALLATION SPECIFICATIONS
(MORMAL / NON-FLUSH INSET)
29
1
/ 2 " (749)
751/2"
(1918)
7"
(178)
6"
(152)
E
LOCATE
ELECTRICAL
WITHIN
SHADED AREA
FRONT VIEWSIDE VIEW
833/4"
(2127)
OPENING
HEIGHT
OPENING WIDTH
24" (610)
OPENING
DEPTH
24" (610)
OPENING
DEPTH
OUTLINE OF
FRAMED, OVERLAY
TOP VIEW
751/2"
(1918)
7"
(178)
6"
(152)
E
LOCATE
ELECTRICAL
WITHIN
SHADED AREA
24" (610)
DEPTH
TO CLEAT
263/16"
(665)
FLUSH INSET
DEPTH
FRONT VIEWSIDE VIEW
TOP VIEW
84"
(2134)
FLUSH
INSET
HEIGHT
1/4"(6) 23/16"
(56) **
11/4"
(32)
11/4"
(32)
23/16"
(56) **
24" (610)
DEPTH
TO CLEAT
263/16"(665)
FLUSH INSET
DEPTH
OR STAINLESS
STEEL MODEL
(WITH 3/4” (19) PANEL)
83” min
(2108)
833/4"
(2127)
HEIGHT
TO CLEAT
83” min
(2108)
29
1
/ 2 " (749)
WIDTH TO CLEAT
32" (749)
FLUSH INSET WIDTH
CLEAT
CLEAT
OUTLINE OF
UNIT
(WITH 3/4” (19) PANEL)
DETAIL A
DETAIL B
1
1
/ 4 "
(32)
24" (610)
OPENING
DEPTH
TO CLEAT CLEAT
TOP VIEW
26
3
/ 16 "
(665)
FLUSH
INSET
DEPTH
2
3
/ 16 " (56)
3" (76)
typical
24" (610)
OPENING
DEPTH TO
CLEAT
1
1
/ 4 "
(32)
2
3
/ 16 " (56)
CLEAT
SHADED
AREA
MUST BE
FINISHED
3" typical
(76)
4" (102)
DETAIL A
DETAIL B
NOTE: Dimensions in parentheses are in
millimeters unless otherwise specified.
**ASSUMES 3/4"(19) PANEL THICKNESS.
INSTALLATION SPECIFICATIONS
(FLUSH INSET)
NOTE: Dimensions in parentheses are in
millimeters unless otherwise specified.
Finished Rough Opening Specifications (Model WS-30)

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Installation Information International W
International Wine Storage ine Storage (ICBWS)
(ICBWS) Series Series
Anti-Tip Bracket Installation
Figure 2-1
Figure 2-2
THE UNIT COULD TIP FORWARD UNDER CERTAIN
LOAD CONDITIONS. FAILURE TO INSTALL BOTH
ANTI-TIP BRACKETS AND EXTEND LEVELERS TO
FLOOR ACCORDING TO INSTALLATION MANUAL
COULD RESULT IN SERIOUS INJURY OR DEATH.
IMPORTANT NOTE: Placement of the two anti-tip brackets
is critical. They must be installed exactly 24" (610 mm)
from the front of the rough opening to the back of the brack-
ets and a minimum of 4" (102 mm) from the sides of the
rough opening. This depth will increase to 26-3/16" (665
mm) for a flush inset installation based on 3/4" (19 mm)
thick decorative panels. Failure to properly position the
anti-tip brackets will prevent them from engaging the unit
should it tip forward.
Standard Installation Procedure:
The two anti-tip brackets must be located 24''(610 mm)
back from front of rough opening and a minimum of 4” (102
mm) from sides of rough opening. This will ensure that ant-
tip brackets properly engage anti-tip bar at back of unit.
NOTE: Both brackets MUST be used.
Wood Floor Applications: (See Figure 2-1)
After properly locating anti-tip brackets in rough opening,
drill pilot holes 3/16'' diameter maximum. Then, use the
#12 X 2-1/2” PH Pan HD Zinc Screws and #12 Flat
Washers to secure the brackets in place.
NOTES:
• Make sure screws penetrate flooring material and wall
stud or wall plate a minimum of 3/4'' (19 mm).
• If #12 X 2-1/2'' screws do not hit a wall stud or the wall
plate in any of the brackets back holes, use the #8-18 X
1-1/4” PH Truss HD Screws and #12 Flat Washers with
the Nylon Zip-It Wall Anchors.
Concrete Floor Applications: (See Figure 2-2)
After properly locating anti-tip brackets in rough opening,
drill pilot holes 3/16'' diameter maximum in the wall studs
and/or wall plate, then drill 3/8” diameter holes into the con-
crete a minimum of 1/2“ (13 mm) deep. Then, use the #12
X 2-1/2” PH Pan HD Zinc Screws and #12 Flat Washers to
secure the brackets to the wall, and use the 3/8”-16 X 3-
3/4” Wedge Anchors to secure the brackets to the floor.
NOTES:
• Make sure screws penetrate wall stud or wall plate a
minimum of 3/4'' (19 mm).
• If #12 X 2-1/2'' screws do not hit a wall stud or the wall
plate in any of the brackets back holes, use the#8-18 X
1-1/4” PH Truss HD Screws and #12 Flat Washers with
the Nylon Zip-It Wall Anchors.

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Installation Information
International W
International Wine Storage ine Storage (ICBWS)
(ICBWS) Series Series
Flush Inset Installation Procedure:
The two anti-tip brackets must be located 24''(610 mm)
back from front of rough opening and a minimum of 4” (102
mm) from sides of rough opening. This will ensure that ant-
tip brackets properly engage anti-tip bar at back of unit.
NOTE: Both brackets MUST be used.
Wood Floor Applications: (See Figure 2-3)
After properly locating anti-tip brackets in rough opening,
drill pilot holes 3/16'' diameter maximum. Then, use the
#12 X 2-1/2” PH Pan HD Zinc Screws and #12 Flat
Washers to secure the brackets in place.
NOTES:
• Make sure screws penetrate flooring material and wall
stud or wall plate a minimum of 3/4'' (19 mm).
• If #12 X 2-1/2'' screws do not hit a wall stud or the wall
plate in any of the brackets back holes, use the #8-18 X
1-1/4” PH Truss HD Screws and #12 Flat Washers with
the Nylon Zip-It Wall Anchors.
Concrete Floor Applications: (See Figure 2-4)
After properly locating anti-tip brackets in rough opening,
drill pilot holes 3/16'' diameter maximum in the wall studs
and/or wall plate, then drill 3/8” diameter holes into the con-
crete a minimum of 1/2“ (13 mm) deep. Then, use the #12
X 2-1/2” PH Pan HD Zinc Screws and #12 Flat Washers to
secure the brackets to the wall, and use the 3/8”-16 X 3-
3/4” Wedge Anchors to secure the brackets to the floor.
NOTES:
• Make sure screws penetrate wall stud or wall plate a
minimum of 3/4'' (19 mm).
• If #12 X 2-1/2'' screws do not hit a wall stud or the wall
plate in any of the brackets back holes, use the#8-18 X
1-1/4” PH Truss HD Screws and #12 Flat Washers with
the Nylon Zip-It Wall Anchors.
Figure 2-3
Figure 2-4

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Installation Information International W
International Wine Storage ine Storage (ICBWS)
(ICBWS) Series Series
Leveling the Unit
Once the unit is in position, the front leveling legs must
be extended down to the floor by turning them clock-
wise. The front leveling legs are also used to make
front height adjustments, turn the leveling legs clock-
wise to raise the unit and counterclockwise to lower it.
The rear height adjustment can be performed at the
front of the base using a 5/16" socket to turn the adjust-
ing bolt that reaches to rear leveler/roller assembly.
Turn the 5/16" hex bolt clockwise to raise the rear of the
unit or counterclockwise to lower it.
When the unit is leveled properly, door and/or drawer
adjustments are less likely to be necessary. Refer to the
illustration below for location of the rear roller base
adjustment.
IMPORTANT NOTE: Be sure to reference “level” of the
unit to the floor, not “squareness” of the unit to the sur-
rounding cabinetry. This could affect the operation of
the unit, such as door closing.
REAR
ADJUSTING
BOLT
FRONT
LEVELING LEG
UNIT BASE ASSEMBLY
REAR
ROLLER / LEVELING
ASSEMBLY
Figure 2-5. Unit Leveling
Electrical Requirements
A 220-240 V AC, 50/60 Hz, 10 amp circuit breaker and
electrical supply are required. A separate circuit, servic-
ing only this appliance, is required.
All Sub-Zero WS Series models are equipped with a
power supply cord with a 3-prong grounding plug, which
must be plugged into a mating 3-prong grounding-type
wall receptacle. Follow the National Electrical Code
and local codes and ordinances when installing the
receptacle. For location of the electrical supply, refer to
the Finished Rough Opening Specifications illustration
for your specific model.
IMPORTANT NOTES:
• A ground fault circuit interrupter (GFCI) is not recom-
mended and may cause interruption of operation.
• The Built-In line is equipped with an appliance inlet
type device. This allows easy replacement of the
power cord. The appliance inlet is located at the top
right of the unit toward the rear. When replacing the
power cord make sure that the replacement cord is
rated HO5VV-F3G1.0 or equivalent to ensure safe
operation of the appliance.
DO NOT USE AN EXTENSION CORD OR TWO
PRONG ADAPTER. ELECTRICAL GROUND IS
REQUIRED ON THESE APPLIANCES. DO NOT
REMOVE POWER SUPPLY CORD GROUND
PRONG!
The outlet must be checked by a qualified electri-
cian to be sure that it is wired with the correct
polarity. If the power and neutral polarity are
reversed at the outlet, the appliance will not oper-
ate. Verify that the outlet provides 220-240 V AC
and is properly grounded.
ALWAYS SWITCH POWER OFF AT THE CIRCUIT
BREAKER BEFORE PERFORMING ANY INSTAL-
LATION, SERVICE OR MAINTENANCE.

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Installation Information
International W
International Wine Storage ine Storage (ICBWS)
(ICBWS) Series Series
Door Adjustments
The doors on the model WS-30 can be adjusted in
three ways: up and down, side to side, and in and out.
IMPORTANT NOTE: Door adjustments must be per-
formed after the unit is installed and properly leveled.
Door Height Adjustment Procedure:
Using a 1/4" allen wrench, turn the bottom hinge
adjuster bolt clockwise to raise the door and counter-
clockwise to lower the door. (See Figure 2-6)
DOOR
HINGE ADJUSTER BOLT
Figure 2-6
Side to Side and In and Out Adjustment Procedure:
IMPORTANT NOTE: Side to side and in and out
adjustments only affect the top of the door. The bottom
hinge is stationary, except for height adjustments.
1. Loosen the two upper cabinet hinge mounting bolts
using a 1/2" wrench (See Figure 2-7).
2. For side to side adjustments, use a 3/8" open-end
wrench to turn bolt mounted left to right in top hinge
assembly in appropriate direction (See Figure 2-7).
3. For in and out adjustments, use a 5/32" allen
wrench to turn bolt mounted front to back in top
hinge assembly in appropriate direction (See Figure
90-Degree Door Stop
The door on the model WS-30 opens to 110-degrees.
An optional 90-degree door stop kit is supplied with the
unit, and is also available through a Sub-Zero dealer or
distributor.
The 90-degree door stop will be installed in the top
hinge of the door.
Door Stop Installation Procedure:
1. Open door to approximately 90 degrees.
2. At top of door, insert door stop cam down
between door hinge and door closer arm as
shown in Figure 2-8.
3. Insert screw through door stop and into door as
shown in Figure 2-8.
Figure 2-8. 90 Degree Door Stop
LEFT TO RIGHT
ADJUSTMET BOLT
IN AND OUT
ADJUSTMET BOLT
MOUNTING BOLTS
Figure 2-7
2-7).

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International Wine Storage ine Storage (ICBWS)
(ICBWS) Series Series
Door Panels
Regardless of the installation application, it may be necessary to remove and/or install a door panel. To do this, the
handle or handle-side trim will need to be removed first. The handle or handle-side trim is attached to the door with
screws, and these screws are concealed by a screw cover. Follow the procedures below to access the mounting
screws and remove a handle or handle-side trim in order to remove and/or install a door panel.
IMPORTANT NOTE: The weight of a door panel cannot exceed 50 lbs (23 kg).
IMPORTANT NOTE: Depending on the thickness of a wood panel used on a framed application, it may be neces-
sary to router a recessed area into the panel for proper finger clearance under the door handle. Optional extended
handles are also available that offer an additional 3/4” (19 mm) of clearance under the handle.
Door Handle / Handle-Side Trim Removal Procedure:
1. At the top of the door, insert a flat blade screwdriver into the channel of the screw cover and push the cover
away form the handle or handle-side trim, disengaging the screw cover from the clips (See Figures 2-9A and 2-
9B).
2. With a T-20, 6-lobe Torx type bit, extract the handle or handle-side trim mounting screws and pull the handle or
trim from the door (See Figures 2-10A and 2-10B).
DOOR
SCREW COVER
HANDLE
Figure 2-9A. Screw Cover Removal
with Handle
HANDLE
Figure 2-10A. Handle Removal
DOOR
SCREW COVER
HANDLE-SIDE TRIM
Figure 2-9B. Screw Cover Removal
with Handle-Side Trim
HANDLE-SIDE TRIM
Figure 2-10B. Handle-Side Trim
Removal

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Installation Information
International W
International Wine Storage ine Storage (ICBWS)
(ICBWS) Series Series
Anchoring the Unit
After the unit has been installed and leveled, ALWAYS
complete the installation with the Anchoring Kit compo-
nents. This will assure a secure installation.
IMPORTANT NOTE: Be sure the unit is level before
anchoring it to the surrounding cabinetry.
Anchoring Procedure:
1. Open the grille, then install anchor screws through
the grille frame clearance holes and the grill frame
support brackets into the cabinetry (See Figure 2-
11). There are several hole locations provided.
2. At the unit roller base assemblies, locate the
anchoring holes, one in each assembly. Install
anchor screws, keeping in mind that they will need
to be driven in at an angle (See Figure 2-12).
ANCHOR SCREWS
Figure 2-11. Anchoring at Top of Unit
ANCHOR SCREW
Figure 2-12. Anchoring at Bottom of Unit

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Electronic Control System International W
International Wine Storage ine Storage (ICBWS)
(ICBWS) Series Series
Term/Component Definition / Description
Main Control Board ……....….. The printed-circuit board (PC Board) which contains a microprocessor, relays, triacs
and electrical connections that monitor and control all functions of the appliance.
Microprocessor ………......…... An electrical component on the control board which receives electrical signals from
other components, processes the information, then sends electrical signals to relays
and triacs on the board to open or close, switching components in the appliance
ON or OFF.
Relay …………………….……. An electrical component on the control board which switches other components in
the appliance ON or OFF when instructed to do so by the microprocessor.
Triac ……………………....…… Similar in function to a relay, the triac is a three terminal semiconductor for control-
ling current in either direction.
Control Panel Assembly …….. That part of the electronic control system where manual commands are entered via
key-strokes and information is displayed; located between the two wine storage
zones.
Membrane Switch ………..….. An integral part of the control panel assembly consisting of the function keys used
for all input commands to the electronic control system.
Keys (Function Keys) ………… The keys or buttons on the control panel assembly used for manual input opera-
tions. The icons on the function keys represent: Unit Power ON/OFF, Lighting
System ON/OFF, COLDER, WARMER and Temperature Alarm System ON/OFF.
LED (Light-Emitting Diode) ….. A semiconductor diode that emits light when power is supplied to it. In the control
panel assembly, LED’s are arranged to show values and codes. They are also used
as back-lighting for icons and indicators in the control panel.
Icons / Indicators ……........…... The words, numbers and symbols visible at and on the control panel assembly.
(Example: temperatures, alarm symbol, service symbol, error/fault codes, etc.)
Set-Point ……………………..... The desired zone temperature, established by pressing the COLDER and/or
WARMER keys.
High Offset (Cut-in)…..……..... During normal operation of a wine storage unit, it is the maximum evaporator tem-
perature the electronic control system will allow before calling for cooling.
Low Offset (Cut-out)……...…... During normal operation of a wine storage unit, it is the minimum compartment air
temperature the electronic control system will allow before interrupting cooling.
Offset Temperature Range …... The difference between the low offset and the high offset.
Thermistor ..........................….. (a.k.a. Temperature Sensor) A resistor with which resistance changes as tempera-
ture around it changes. For electronic control system purposes, the microprocessor
detects, monitors and processes this resistance value in order to control cooling
functions as well as displays it as a temperature reading at the control panel.
Display Units of Measure…….. Temperatures displayed at the control panel may be in Celsius (°C) or Fahrenheit
(°F) units of measure. Switching from one to the other display units of measure is
accomplished through a series of key strokes.
Error (Fault) Codes .………..... The codes that appear at the control panel display windows if the unit experienced
specific problems related to electrical signals supplied to the microprocessor.
Electrical “Pulse”....................... A non-constant supply of voltage, or electrical signal, the duration of which is often
measured in milliseconds.
Electrical Polarity....................... The positive ( + ) and negative ( - ) sides of the alternating current sinewave.
ELECTRONIC CONTROL TERMINOLOGY & COMPONENT DESCRIPTIONS
The ICBWS Series utilizes an electronic control system which monitors, regulates, controls and displays a variety of
functions and operations in the appliance.
The table below defines some of the basic electronic control system terminology.

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Electronic Control System
International W
International Wine Storage ine Storage (ICBWS)
(ICBWS) Series Series
BASIC WINE STORAGE ELECTRONIC CONTROL SYSTEM
This page contains a basic illustration of the ICBWS Series electronic control system (See Figure 3-1). Input opera-
tions are performed at the membrane switch (part of the the control panel assembly), with monitoring, regulating and
controlling functions taking place at the control board (located directly behind the control panel). Temperatures and
possible problems with the unit are displayed at the control panel display. The entire electronic control system is
described in greater detail on the following pages.
NOTE: The diagram below is not an exact electrical representation of the electronic control system. For more
detailed electrical diagrams refer to the wiring diagram and schematic supplied with the unit.
Figure 3-1. Basic ICBWS Series Electronic Control System
N.C.

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Electronic Control System International W
International Wine Storage ine Storage (ICBWS)
(ICBWS) Series Series
J3
E3
14
E1
E2
WINE
CONTROL
BOARD
J8
8
J1
J2
1
1
Figure 3-2. Control Board Layout Figure 3-3. Control Board Summary Table
CIRCUIT
E1 E2 E3 P14 J3 P12 P13 P11 P8 P10 P9 P6 P7
LIGHTS HIGH VOLT CIRCUITS COMPRESSOR DESCRIPTION POWER IN EMPTY GROUND NEUTRAL EMPTY EMPTY LIGHTS OVERRIDE LOWER EVAP FAN UPPER EVAP FAN EMPTY
WINE STORAGE SERIES CONTROL BOARD SUMMARY/ LAYOUT
POWERS LIGHTS POWERS COMPRESSOR POWER INTO BOARD FUNCTION COOLS UPPER COMPARTMENT COOLS LOWER COMPARTMENT ON WHEN LIGHTS ON 100% NEUTRAL INTO BOARD EARTH GROUND
BROWN
BLACK
GRAY
COLOR GREEN
WHITE
BLUE
ORANGE
PINK
EMPTY
ALARM CIRCUIT-NORMALLY CLOSED
LOW VOLTAGE CIRCUITS
ALARM CIRCUIT ALARM CIRCUIT-OPEN
UPPER CABINET LOWER CABINET LOWER CABINET THERMISTER CIRCUITS UPPER CABINET LOWER EVAPORATOR LOWER EVAPORATOR UPPER EVAPORATOR UPPER EVAPORATOR
ALARM CIRCUIT-NORMALLY OPEN
REFRIGERANT VALVE
CIRCUIT
P3 P4 P5
J3 J2
P1 P2 P3 P4 P5 P6 P8 P7
FOR HOME ALARMS WHT/BLUE FOR HOME ALARMS
DESCRIPTION FUNCTION COLOR
WHT/RED
FOR HOME ALARMS SENSES TEMPERATURE
GRAY/WHT
BLUE/WHITE BLUE/WHITE
BLUE/BLACK BLUE/BLACK
BLUE/RED
ORANGE/RED
ORANGE/YELL
BLUE/YELLOW
SENSES TEMPERATURE SENSES TEMPERATURE SENSES TEMPERATURE SENSES TEMPERATURE SENSES TEMPERATURE SENSES TEMPERATURE SENSES TEMPERATURE
P1 P2
CONTROL REF TAN
WINE STORAGE CONTROL BOARD
LAYOUT AND SUMMARY TABLE
The electrical connection points on the wine storage control board
are labeled Alphanumerically. These labels correspond with the
alphanumeric control board summary layout table on the wiring dia-
gram. By referencing the table, it is possible to identify which com-
ponents are connected at which connection points on the control
board. Below is a layout diagram of the control board, followed by
a copy of a summary table. (See Figures 3-2 and 3-3)
NOTE: All components on the control board are non-replaceable.
If problems with the control board are identified, the complete con-
trol board must be replaced.

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Electronic Control System
International W
International Wine Storage ine Storage (ICBWS)
(ICBWS) Series Series
WINE STORAGE CONTROL PANEL LAYOUT
Figure 3-4. International Wine Storage Control Panel Layout
BASIC WINE STORAGE INPUT OPERATIONS
The following pages describe the basic input operations performed at the control panel (switching unit ON and OFF,
adjusting set-point (temperature adjustment), switching lighting system ON and OFF, and enabling and disabling the
temperature alarm feature). Please note that though possible to display temperatures in Fahrenheit or Celsius, in
most cases Fahrenheit readings are shown in this manual.
Unit ON/OFF
All units are shipped in the OFF Mode. When electricity is supplied to the appliance, a short power up is initiated
where the temperature units of measure (°F or °C) is displayed for one (1) second, followed by the model code for
five (5) seconds, then all components are switched OFF and the LED displays go blank. By pressing the POWER
key, electricity is allowed past the control board to the rest of the unit, indicated by the lights energizing, the cooling
functions beginning and temperatures appearing in the LED display windows. (See Figure 3-5).
TEMP ALARM
&
SERVICE
Icons/Indicators
Upper
Compartment LED
Display Window
Upper Compartment
COLDER
key
WARMER
key
Lower Compartment
COLDER
key
WARMER
key
Temperature
Alarm ON/OFF
key
UNIT POWER
ON/OFF
key
LIGHTS
ON/OFF
key
Lower
Compartment LED
Display Window
SHOCK HAZARD! WHEN IN OFF MODE, AC LINE VOLTAGE IS STILL PRESENT AT CONTROL BOARD!
Figure 3-5. Switching Unit ON or OFF - Press (POWER) Key.

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Electronic Control System International W
International Wine Storage ine Storage (ICBWS)
(ICBWS) Series Series
Adjusting Set-Points (Temperature Adjustments)
To adjust set-points, press the WARMER or COLDER keys on the control panel in multiple key strokes until the
desired set-point is achieved (See Figure 3-6). One key stroke equals a one degree change. The set-point will be
displayed for ten (10) seconds after the last key stroke. After ten seconds, the compartment temperature will be dis-
played. As the compartment temperature changes, the temperature displayed will change by no more than one
degree per minute.
NOTES:
•To check set points, press a WARMER or COLDER key, keeping in mind that the initial key stroke will change the
previous set-point by a one degree increment or decrement depending on key stroke choice.
•The temperature range in a wine storage compartment is 3°C (38°F) to 18°C (65°F).
Lighting System ON/OFF
For the purpose of displaying a wine supply, it is possible to energize the lights 100% of the time, even when the
door is closed. To do so, press and release the LIGHTS key (See Figures 3-7). To switch back to normal lighting
operation, press and release the LIGHTS key again.
Temperature Alarm ON/OFF
There is an audio/visual temperature alarm in a ICBWS series unit that can be enabled to warn a customer of tem-
peratures problems. To enable the alarm, press and release the ALARM key (See Figure 3-8). If the alarm is
enabled, then the alarm icon on the display will illuminate. To disable this feature, press and release the ALARM
key again, and the alarm icon will de-energize.
NOTE: If the alarm is enabled and temperature problems are experienced, the alarm icon will flash and the alarm
will beep. There are also provisions in a ICBWS series unit to allow for the alarm feature to be tied into a home’s
security alarm system.
Adjusting lower compartment set-point “colder”
Figure 3-6. Adjusting Set-Point - Press Desired (WARMER) or (COLDER) Key In Multiple Key Strokes
Figure 3-7. Lighting System ON or OFF - Press (LIGHTS) Key
Figure 3-8. Switching Temperature Alarm ON or OFF - Press (ALARM) Key, Bell Appears when Activated

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Electronic Control System
International W
International Wine Storage ine Storage (ICBWS)
(ICBWS) Series Series
UNIQUE WINE STORAGE INPUT OPERATIONS
The following pages illustrate unique input operations performed at the control panel, namely: Temperature Units
Selection Mode, Sabbath Mode and Showroom Mode.
Temperature Units Selection Mode (Selecting Degrees Fahrenheit or Degrees Celsius Display)
The electronic control in a ICBWS series unit is initially set to display temperature in Celsius (°C) units of measure.
Units of measure can be converted from °C to °F ( Fahrenheit), and/or back again. This operation is called
Temperature Units Selection.
NOTE: Temperature Units Selection must be performed within the first minute after switching the unit ON.
To convert temperature units of measure from Celsius (°C) to Fahrenheit (°F) readings, press and hold the ALARM
key and the POWER key simultaneously for five (5) seconds, then release the keys (See Figure 3-9). A temperature
is now shown in the left display window, and the right display window indicates the units of measure as °C or °F. In
this case, a temperature will be displayed in Fahrenheit (°F) units of measure. (See Figure 3-10)
To switch from Fahrenheit back to Celsius units of measure, repeat the steps above within one (1) minute of switch-
ing the unit on.
NOTES:
•Do not press and hold the POWER key first, that will simply switch the unit OFF.
•Temperature Units Selection Mode will end ten (10) seconds after the last key stroke.
Figure 3-9. Initiating Temperature Units Selection Mode -
Press and Hold ALARM and POWER Keys for Five (5) Seconds
Figure 3-10. Temperature Units Selection Mode Initiated, Fahrenheit Units (°F) Displayed

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Electronic Control System International W
International Wine Storage ine Storage (ICBWS)
(ICBWS) Series Series
Sabbath Mode
Sabbath Mode was incorporated into the electronic control system for observance of certain religious days. When
Sabbath Mode is initiated the lighting system along with the control panel LED displays and indicators are disabled.
To initiate Sabbath Mode, the unit must first be switched OFF using the POWER key (See Figure 3-13), then press
and hold the POWER key for ten (10) seconds, until the lights switch OFF and two beeps are emitted by the alarm
(See Figure 3-14). To return to normal operation, press and release the POWER key.
NOTES:
•During Sabbath Mode, the evaporator fans will function when the door is open.
•During Sabbath Mode, set-points cannot be adjusted.
Figure 3-13. Switch Unit OFF First
Figure 3-14. Initiate Sabbath Mode - Press and Hold POWER Key for 10 Seconds
Hold for 10 Seconds
Showroom Mode
Showroom Mode was incorporated into the electronic control system so the appliance could be displayed in a show-
room setting. When in Showroom Mode, all cooling functions are disabled, but the lighting system remains active.
To initiate Showroom Mode, begin by switching the unit OFF using the POWER key (See Figure 3-11). Then press
and hold the upper compartment WARMER and COLDER keys, and the POWER key, then release the keys (See
Figure 3-12). The unit is is now in Showroom Mode. This can be verified by checked for evaporator fan operation,
and/or compressor operation. To return the unit to normal operation, repeat the steps above.
NOTE: Always check set-points after returning unit to normal operation.
Figure 3-11. Switch Unit OFF First
Figure 3-12. Initiate Showroom Mode - Press Upper COLDER, WARMER and POWER Keys