Sub-Zero Integrated Series User manual

General Information 2
Installation Information 6
Controls & Operation 9
Sealed System 35
Air Flow & Fan Blade Spacing 41
Icemaker Information 43
Component Access & Removal 52
Troubleshooting Guide 75
Technical Data 97
Wiring Diagrams 100
subzero.com 800.222.7820
700
Service Manual

Page 2
1-2
#7015817 - Revision A - January, 2010
General Information INTEGRA
INTEGRATED TED (736 T
(736 Tall SWS #2970000) all SWS #2970000) SERIES SERIES
INTRODUCTION
This Technical Service Manual has been compiled to provide the most recent service information for 736 Series Tall
units, starting with Serial #2970000. This information will enable the service technician to troubleshoot and diagnose
malfunctions, perform necessary repairs, and return a unit to proper operational condition.
The service technician should read the complete instructions contained in this manual before initiating any repairs.
IMPORTANT SAFETY INFORMATION
Below are the Product Safety Labels used in this manu-
al. The "Signal Words" used are WARNING or CAU-
TION.
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 below 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.
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 or product 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.
TECHNICAL ASSISTANCE
If you should have any questions regarding the 736
Series starting with Serial #2970000 and/or this manual,
please contact:
Sub-Zero, Inc.
ATTN: Service Department
P.O. Box 44988
Madison, WI 53744 - 4988
Customer Assistance
Phone #: (800) 222 - 7820
Facsimile #: (608) 441 - 5887
Technical Assistance
(For Technicians in Customer’s Homes Only)
Phone #: (800) 919 - 8324
Warranty Claims
Phone #: (800) 332 - 9513
Facsimile #: (608) 441 - 5886
Service Department e-Mail Address:
[email protected]
Office Hours:
7:00 AM to 6:00 PM Central Time
Monday through Friday
This manual was 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.

Page 3
1-5 #7015817 - Revision A - January, 2010
®
R134a
REFRIGERANT
SERIAL NUMBER
MADISON, WI
PRODUCT SERVICE 1-800-222-7820
MODEL
115Vac, 60Hz, 1 Phase
TOTAL AMPS
SUB-ZERO, INC.
8.8
LISTED HOUSEHOLD
REFRIGERATOR OR FREEZER
Date Code
L
776N
LISTED
U
CUS
FREEZER
8.5 oz
ALSO VERIFIED IN
ACCORDANCE WITH
ENERGY STANDARD
CAN/CSA-C300-91
REFRIGERATOR
5.25 oz
736TCI 2970000
Figure 1-1. Serial Tag Layout
(The serial number tag is located on the left side wall of the upper drawer compartment.)
Model Number Serial Number
Refrigerant Charge Total Amps Refrigerant Type
WARRANTY INFORMATION
This page summarizes the 2, 5 & 12 Year Residential
Warranty provided with every Sub-Zero, as well as two
special warranties:
•Non-Residential Warranty - Applies to units installed
in non-residential applications.
•Display/Model Home Warranty - Applies to distribu-
tor or dealer display units, and units in model
homes, sold three years after date of manufacture.
Following the warranty summaries are details and notes
about the warranties.
TWO, FIVE & TWELVE YEAR Warranty
• 2 year TOTAL PRODUCT, *parts and labor.
• 5 Year SEALED SYSTEM, **parts and labor.
• 6th - 12th year LIMITED SEALED SYSTEM, **parts
only.
ONE & FIVE YEAR Non-Residential Warranty
(Example: Office, Yacht, etc.)
• 1 Year TOTAL PRODUCT, *parts and labor.
• 5 Year SEALED SYSTEM, **parts and labor.
ONE & FIVE YEAR Display/Model Home Warranty
(Display units sold three years after date of manu-
facture)
• 1 Year TOTAL PRODUCT, *parts and labor.
• 5 Year SEALED SYSTEM, **parts and labor.
Warranty Details:
* Includes, but is not limited to the following:
Electronic Control System Components, Fan & Light
Switches, Fan Motors & Blades, Defrost & Drain
Heaters, Defrost Terminator, Drain Pan, Drain Tubes,
Wiring, Light sockets & bulbs, Icemaker, Water Valve,
Door hinges, Door closers & Cams, Compressor
Electricals, etc. . .
* Stainless Steel doors, panels and product frames are
covered by a limited 60 day parts and labor warranty
for cosmetic defects.
** Includes the following:
Compressors, Condenser, Evaporators, Filter-Driers,
Heat-exchangers, All Tubing that Carries the Freon.
NOTE: Condenser Fan Motors, Freon, Solder and
compressor electricals are NOT considered sealed
system parts.
Warranty Notes:
• All warranties begin at unit's initial installation date.
• All Warranty and Service information collected by Sub-
Zero is arranged and stored under the unit serial num-
ber, and the customer's last name.
Sub-Zero requests that you have the model and serial
number available whenever contacting the factory or
parts distributor.
• The serial tag is located on the left wall of the upper
drawer compartment.
INTEGRA
INTEGRATED TED (736 T
(736 Tall SWS #2970000) all SWS #2970000) SERIES SERIES General Information

Page 4
1-6
#7015817 - Revision A - January, 2010
General Information INTEGRA
INTEGRATED TED (736 T
(736 Tall SWS #2970000) all SWS #2970000) SERIES SERIES
MODEL DESCRIPTIONS
This page briefly describes the models covered in this 736 Tall SWS #2970000 Unit Technical Service Manual.
Figure 1-2. Model 736TCI
Lower Two
Drawer
Freezer
Zone
Upper
Refrigerator
Zone
736TCI
MODEL DESCRIPTION
736 Series, 36”Wide Tall Combination
Refrigerator/Freezer, w/Icemaker
Figure 1-3. Model 736TR
Lower Two
Drawer
Refrigerator
Zone
Upper
Refrigerator
Zone
736TR
MODEL DESCRIPTION
736 Series, 36”Wide Tall Refrigerator

Page 5
1-7 #7015817 - Revision A - January, 2010
INTEGRA
INTEGRATED TED (736 T
(736 Tall SWS #2970000) all SWS #2970000) SERIES SERIES General Information
Figure 1-4. Model 736TFI
All one
Freezer
Zone
736TFI
MODEL DESCRIPTION
736 Series, 36” Wide Tall Freezer, w/Icemaker

Page 6
2-2
#7015817 - Revision A - January, 2010
General Information INTEGRA
INTEGRATED TED (736 T
(736 Tall SWS #2970000) all SWS #2970000) SERIES SERIES
UNIT COULD TIP FORWARD UNDER CERTAIN LOAD CONDITIONS. FAILURE TO INSTALL ANTI-TIP COM-
PONENTS AND EXTEND LEVELERS TO THE FLOOR ACCORDING TO INSTALLATION MANUAL COULD
RESULT IN SERIOUS PERSONAL INJURY OR DEATH.
INSTALLATION CONSIDERATIONS
This section covers some of the more common installation issues seen by a service technician. An improper instal-
lation, though not a valid service issue, has the potential to lead to a customer placing a call for service. Installation
related customer complaints could include, but are not limited to: Unit leveling, unit movement, door misalignment,
doors and drawers not sealing, internal frost or condensation, warm compartment temperatures, exterior condensa-
tion, etc.. .
NOTE: If additional installation information is needed, refer to the complete Installation Manual, or contact the Sub-
Zero Technical Assistance Department.
Unit Leveling
NOTE: The kickplate/grille must be removed before
leveling (See Figure 2-1). If the unit has already been
anchored to the cabinets, the side molding strips must
be removed and the anchor screws must be extracted
from the unit to cabinet brackets before leveling (See
Figure 2-2). These components must be reinstalled
after leveling.
Figure 2-2. Side Molding & Bracket
Figure 2-1. Kickplate/Grille Removal
Figure 2-3. Adjusting Front Levelers
To level the unit, turn the front leveling legs counter-
clockwise to raise the front or clockwise to lower it. To
assist in turning the front leveling legs up or down, use
a standard straight-blade screwdriver and place it in the
foot of the front leg, then rotate the leveler foot in the
desired direction (See Figure 2-3).
Kickplate / Grille

Page 7
2-3 #7015817 - Revision A - January, 2010
INTEGRA
INTEGRATED TED (736 T
(736 Tall SWS #2970000) all SWS #2970000) SERIES SERIES General Information
Figure 2-4. Adjusting Rear Levelers
Figure 2-5. 90° Door Stop Cam
Screwdriver
The rear levelers are adjusted from the front of the
base by turning the Phillips head adjusting screw. The
long adjusting screw reaches all the way to the rear lev-
eler assembly. Turn the screw clockwise to raise the
rear or counterclockwise to lower it (See Figure 2-4).
NOTE: The rear leveling legs will only move 1/16” for
every 18 revolutions of the Phillips head screw. Do not
over torque. Use the lowest torque setting on any
power screwdriver. Do not turn rear leveling legs by
hand, doing so will damage the assembly.
Door and Drawer Adjustment
The doors and drawers are non-adjustable. Instead,
the door and/or drawer panels must be adjusted if there
is an alignment problem. Refer to the Installation
Manual and/or installation video for panel installation
and adjustment.
NOTE: The unit must be level before attempting to
adjust the door and drawer panels.
NOTE: If the door has problems closing, see Tall Unit
Door Hinge Operation Test Procedures and Corrections
at the end of the Troubleshooting Guide.
Door Stop Adjustment
This Series has a 90° door stop cam built into the hinge
system. The 90° door stop cam is located in the center
portion of each hinge. To adjust it, use a standard
straight-blade screwdriver to rotate the cam until it
reaches the stop point (See Figure 2-5).
NOTE: You must make this adjustment at both bottom
and top hinge.
90° Stop Cam

Page 8
2-4
#7015817 - Revision A - January, 2010
General Information INTEGRA
INTEGRATED TED (736 T
(736 Tall SWS #2970000) all SWS #2970000) SERIES SERIES
Dual Unit Installations
• If two Tall units are installed side by side and are 2”
or less apart, part #7007529 (aka TTDUAL) should
be utilized. (See Figure 2-6)
• If two Base units are installed side by side and are
2” or less apart, part #7007530 (aka BBDUAL)
should be utilized
• If a Tall unit is installed next to a Base unit and they
are 2” or less apart, part #7007530 (aka BBDUAL)
should be utilized.
Complete installation instructions are supplied with the
#7007530 and #7007529 packages.
Figure 2-6. Dual Unit Heater Installation
Apply heater
to left side of
right hand
unit
If two or more units are placed side by side and are
2” or less apart, a dual unit heater package must be
applied to the left side of the right hand unit.
Failure to install the dual unit heater package could
result in exterior condensation between the units.

Page 9
3-2
#7015817 - Revision A - January, 2010
General Information INTEGRA
INTEGRATED TED (736 T
(736 Tall SWS #2970000) all SWS #2970000) SERIES SERIES
ELECTRONIC CONTROL TERMINOLOGY & COMPONENT DESCRIPTIONS
The appliances described in this manual utilize 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.
Term/Component Definition / Description
Main Control Board ..……….… (Also referred to as the Main “Controller” Board), is 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 …..… (a.k.a. the User Interface Module, or UIM), is that part of the electronic control sys-
tem where all manual input operations are performed.
Membrane Switch ………..….. An integral part of the control panel assembly, which consists of the function keys
used for all input operations to the electronic control system.
Function Keys …….................. The buttons (or keys) on the Membrane switch used for input operations. (The keys
are: UNIT ON/OFF, ALARM ON/OFF, ICE ON/OFF, WARMER, COLDER)
LCD (Liquid Crystal Display) ... A semi-liquid substance sandwiched between glass in the control panel assembly.
The molecules of this semi-liquid substance have no specific orientation. However,
when electricity is applied to them, they react predictably, aligning and straightening
in such a way as to control light passage. In doing so, they can be manipulated
and arranged to form the indicators that appear in the LCD.
Indicators .....………….………... The words, numbers and icons that appear at the LCD
Fault Codes (Error Codes) ........The code number indicators accompanied by the letters “EC” that appear on the
LCD during diagnostic mode This coded data represents current and/or historical
problematic events that specific electronic components may have experienced.
Display Units of Measure……... Temperatures displayed at the LCD may be in fahrenheit units of measure (°F) or
celsius units of measure (°C). A series of key strokes allows the temperature dis-
play units of measure to be switched to read as either °F or °C.
Set-Point ……………………….. The desired zone temperature, established by pressing the COLDER or WARMER
keys.
High Offset (Cut-in)……….….....As the zone air temperature cycles up and down, the high offset is the maximum
zone temperature that the electronic control system will allow before calling for
cooling.
Low Offset (Cut-out)…….……... As the zone air temperature cycles up and down, the low offset is the minimum
zone air temperature that the electronic control system will allow before interrupting
cooling.
Thermistor ..….......................... (a.k.a. a Temperature sensor) A resistor with which resistance changes as the tem-
perature around it changes. For electronic control system purposes, the micro-
processor measures this resistance and displays it as a temperature reading at the
LCD.

Page 10
3-3 #7015817 - Revision A - January, 2010
INTEGRA
INTEGRATED TED (736 T
(736 Tall SWS #2970000) all SWS #2970000) SERIES SERIES General Information
Figure 3-1. 736TCI Electronic Control System Diagram
BASIC ELECTRONIC CONTROL SYSTEM
Input operations for the electronic control system are performed at the control panel membrane switch, with monitor-
ing, regulating and controlling taking place at the control board . Temperatures and possible problems with the unit
are displayed in the LCD at the control panel assembly. This page contains a 736TCI wire schematic showing the
electronic control system which is described in greater detail on the following pages.
0
0
0
E2
0
E6E10E7
0
0
0
J6
LOW VOLTAGE
WATER VALVE
MFREEZER
FAN MOTOR
WHITE
WHITE
FREEZER
LIGHT
SWITCHES
LIGHT SWITCH TERMINATOR REFRIGERATOR
LIGHTS
FREEZER
LIGHTS
FILL TUBE
HEATER
DEFROST
HEATER
2300-2900 Ω
ORANGE
ORANGE/BLACK
WHITE/BLUE
DRAIN TROUGH
HEATER
ORANGE/BLACK
ORANGE/BLACK
RED
ICEMAKER
REFRIGERATOR LIGHT
CONDENSER
FAN MOTOR
DEFROST
TERMINATOR
M
M
160 Ω
TAN
PINK/BLACK
GRAY/WHITE
BLUE
WHITE/RED
30-38 Ω
TAN
PURPLE
J6
J5
J3
E2 E7 E10 E6
J2 J1
J7
J4
155-175 Ω
ORANGE
ORANGE/BLACK
FAN CONTROL
1
RELAY
3
4
2
6
78
ORANGE/BLACK
FREEZER
5
PINK
PINK/BLACK
FREEZER
OVERLOAD
PROTECTOR
NEUT
115 VOLTS
60 CYCLES
L1
REFRIGERATOR
OVERLOAD
PROTECTOR
FREEZER
COMPRESSOR STARTING RELAY
RUNNING
CAPACITOR
M
REFRIGERATOR
COMPRESSOR
M
REFRIGERATOR
FAN SWITCH
REFRIGERATOR
FAN MOTOR
WHITE
GRAY
BLACK
PURPLE
WHITE RED
STARTING
RELAY
RUNNING
CAPACITOR
HIGH VOLTAGE
(WHEN USED)
(WHEN USED)
RED
MEMBRANE SWITCH
J5
PIN 1
PIN 1
J7
PIN 1
J3
J2
PIN 1
PIN 1
PIN 1
PIN 1
J1
J4
DISPLAY
(LCD)
REF EVAP
THERMISTOR
FZR EVAP
THERMISTOR
BROWN
BROWN
BLUE
BROWN
BLUE
BLUE/BLACK
BROWN
BLUE/WHITE
FZR CAB
THERMISTOR
REF CAB
THERMISTOR
MICROPROCESSOR
UNIT
ICE
WARMERCOLDER REFRIGERATOR ON/OFF ON/OFF ON/OFF WARMERCOLDER
FREEZER

Page 11
3-4
#7015817 - Revision A - January, 2010
General Information INTEGRA
INTEGRATED TED (736 T
(736 Tall SWS #2970000) all SWS #2970000) SERIES SERIES
PIN 1 PIN 1
PIN 1
PIN 1
PIN 1
PIN 1
LCD (DISPLAY)
J6
J4
J1
E7 E10 E6E2
J2
J3
J7
J5
PIN 1
BOARD CONFIGURING
RESISTORS
Figure 3-2. 736 Tall Unit Control Board Layout
Figure 3-3. 736 Tall Unit Control Board Summary Table (736TCI Summary Table Shown)
CONTROL BOARD LAYOUT AND SUMMARY TABLE
The electrical connection points on the control board are labeled alphanumerically. These labels correspond with
the alphanumeric control board summary table, located on the wiring diagrams. By referencing the summary table,
it is possible to identify which components are connected at which connection points on the control board. Below is
a layout diagram of the control board, and a copy of a summary table. (See Figures 3-2 and 3-3)
NOTE: All components on the control board are non-replaceable. If a problem with the control board is identified,
the complete control board must be replaced.
J7-1 C FAN
DEF HTRE2
E6
E7
E10
CIRCUIT
RCOMP
FCOMP
L1
J7-5
J7-3
J7-2
J7-4
J4-1
J7-7
J7-6
J7-8
E FAN
LITES
NEU
J1-4
J4-5
J4-4
J4-3
J4-2
J1-3
J1-2
J1-1
J1-8
J1-7
J1-6
J1-5
IACC
ICE
F DR
R DR
EVAP FRZ
EVAP FRZ
EVAP REF
EVAP REF
REF
REF
FRZ
FRZ
DEFROST HEATER
ICE MAKER VALVE SENSOR
DEF SENSOR
ICE MAKER ACC (FILL TUBE)
ICE MAKER
LOW VOLTAGE THERMISTOR CIRCUITS
REF EVAP
FRZ COMPARTMENT
FRZ COMPARTMENT
REF COMPARTMENT
REF COMPARTMENT
REF EVAP
FRZ EVAP
NOT USED(NO PIN)
DOOR LIGHTS SENSE
DRAWER LIGHTS SENSE
NOT USED(NO PIN)
NOT USED
FAN SW
CONDENSER FAN
REF COMPRESSOR
LIGHTS
NEUTRAL
DESCRIPTION
POWER IN
120 VOLT CIRCUITS
FRZ COMPRESSOR
FRZ EVAP
POWERS ICE MAKER
SENSES WATER VALVEACTIVATION
SENSES WHEN DEF HEATER SHUTS OFF
POWERS FILL TUBE HEATER AND ACCESSORIES
POWERS DEFROST CIRCUIT
SENSES FRZ CABINET TEMP (DRAWERS)
SENSES FRZ CABINET TEMP (DRAWERS)
SENSES REF CABINET TEMP
SENSES REF CABINET TEMP
SENSES REF EVAP TEMP
SENSES REF EVAP TEMP
SENSES FRZ EVAP TEMP (DRAWERS)
SENSES IF DOOR OPEN
SENSES IF EITHER DRAWER OPEN
POWERS CONDENSER FAN
POWERS REF COMPRESSOR (DOOR)
POWERS LIGHTS
POWERS FRZ COMPRESSOR (DRAWERS)
POWER INTO BOARD
NEUTRAL INTO BOARD
FUNCTION
SENSES FRZ EVAP TEMP (DRAWERS)
POWERS REF FAN SW
CONTROL BOARD SUMMARY
WHITE/BLUE
GRAY/WHITE
TAN
BLUE
PINK/BLACK
BROWN
BLUE
BROWN
BLUE/WHITE
BROWN
BLUE
BROWN
BLUE/BLACK
WHITE/RED
COLOR
GRAY
PURPLE
BLACK
YELLOW
ORANGE/BLACK
WHITE
ORANGE
RED

Page 12
3-5 #7015817 - Revision A - January, 2010
INTEGRA
INTEGRATED TED (736 T
(736 Tall SWS #2970000) all SWS #2970000) SERIES SERIES General Information
JakeDogwashere
UNIT
UNIT
ICE
ICE
WARMER
WARMER
COLDER
COLDER
REFRIGERATOR
REFRIGERATOR
ON/OFF
ON/OFF
ON/OFF
ON/OFF
ON/OFF
ON/OFF
WARMER
WARMER
COLDER
COLDER
FREEZER
FREEZER
ICE
ICE
SERVICE
SERVICE
OFF
OFF
CONTROL PANEL LAYOUT
Please note that an illustration of the 736TCI control panel is used in most cases for this section. (See Fig. 3-4)
Figure 3-4. 736 Tall Unit Control Panel Layout (736TCI Control Panel Shown)
WHEN IN OFF MODE, AC LINE VOLTAGE IS STILL PRESENT AT CONTROL BOARD!
UNITICE
REFRIGERATOR ON/OFF ON/OFF ON/OFF
WARMERCOLDER
FREEZER WARMERCOLDER
Figure 3-5. 736 Tall Unit ON/OFF, Press UNIT ON/OFF Key
BASIC ELECTRONIC CONTROL INPUT OPERATIONS
Following are illustrations which show the basic input operations performed at the control panel. Switching the unit
ON and OFF, adjusting the set-point (temperature adjustments), switching the ice maker system ON and OFF, and
enabling and disabling the door ajar alarm feature will be explained. Please note that an illustration of the 736TCI
control panel is used for most articles in this section, and in most cases Fahrenheit readings are shown.
Unit ON/OFF
All units are shipped in OFF Mode. When power is supplied to the unit, a trace of the word “OFF” is visible on the
LCD. By pressing and releasing the UNIT ON/OFF key (See Figure 3-5), power is allowed past the control board to
the rest of the unit. This is indicated by the unit’s lights energizing and LCD at the control panel illuminating with
temperature readings.
NOTE: Whenever the unit is switched OFF using the UNIT ON/OFF key, a trace of the word “OFF” will be visible on
the LCD as long as there is power to the unit.
UNIT
ON/OFF
KEY
DOOR / DRAWER
AJAR
ALARM
ON/OFF
KEY
REFRIGERATOR
SET-POINT
ADJUSTMENT
KEYS
(Upper Section on 736TR)
(Not present on 736TFI)
FREEZER
SET-POINT
ADJUSTMENT
KEYS
(Lower Section on 736TR)
LCD
Liquid
Crystal
Display
ICEMAKER SYSTEM
ON/OFF KEY
(Not present on 736TR)

Page 13
3-6
#7015817 - Revision A - January, 2010
General Information INTEGRA
INTEGRATED TED (736 T
(736 Tall SWS #2970000) all SWS #2970000) SERIES SERIES
Adjusting Set-Point (Temperature Adjustment)
To adjust set-points, press WARMER or COLDER key on control panel in multiple key strokes until desired set-point
is achieved (See Figure 3-6). One key stroke equals one degree change.
NOTES:
•The temperature range in a freezer zone is -5°F (-21°C) to +5°F (-15°C). The temperature range in a refrigerator
zone is +34°F (+1°C) to +45°F (+7°C).
•The initial stroke of the WARMER or COLDER key will change the previous set-point by one degree.
•The set-point will be displayed on the LCD for 10 seconds after the last key stroke. After the 10 second delay,
the zone temperature will be displayed. As the zone temperature changes, the temperature displayed on the
LCD will change by no more than one degree per minute.
UNITICE
REFRIGERATOR ON/OFF ON/OFF ON/OFF
WARMERCOLDER
FREEZER WARMERCOLDER
Figure 3-6. Adjusting Set-Point - Press WARMER or COLDER Key In Multiple Key Strokes
Icemaker System ON/OFF
When a unit first arrives in a home, the icemaker system is off. By pressing and releasing the ICE ON/OFF key,
power is allowed to the icemaker system and “ICE” appears on the LCD (See Figure 3-7). To switch the icemaker
system off, press and release the ICE ON/OFF key again and the “ICE” indicator disappears from the LCD, indicat-
ing the icemaker system is OFF.
NOTES:
•When in “Sabbath Mode,” the icemaker system is deactivated. Sabbath Mode will be explained later.
•To allow ice to freeze fully and reduce effects of low water pressure, power to the icemaker system is interrupted
for 45 minutes after each ice harvest. This can be bypassed for service purposes by switching the icemaker sys-
tem OFF, then back ON with the ICE ON/OFF key.
Figure 3-7. Icemaker System ON/OFF - Press ICE ON/OFF Key
ICE UNITICE
REFRIGERATOR ON/OFF ON/OFF ON/OFF
WARMERCOLDER
FREEZER WARMERCOLDER
UNITICE
REFRIGERATOR ON/OFF ON/OFF ON/OFF
WARMERCOLDER
FREEZER WARMERCOLDER
Ice system active if “ICE” is displayed
Door Ajar Alarm Feature ( ) ON/OFF
All units are equipped with a door ajar alarm feature. To enable the door ajar alarm, press and release the Alarm
Bell ON/OFF key on the control panel (See Figure 3-8). The bell indicator appears on the LCD indicating the alarm
feature is active. With the alarm enabled, the bell indicator will flash and an audible alarm will beep whenever the
door is left open for more then thirty seconds. To disable the door ajar alarm, press the Alarm Bell ON/OFF key
again and the bell indicator disappears from the LCD, indicating the alarm feature is inactive.
Door Ajar Alarm active if Bell is displayed
Figure 3-8. Switching Door Ajar Alarm ON or OFF - Press ( )ON/OFF Key

Page 14
3-7 #7015817 - Revision A - January, 2010
INTEGRA
INTEGRATED TED (736 T
(736 Tall SWS #2970000) all SWS #2970000) SERIES SERIES General Information
UNIQUE ELECTRONIC CONTROL INPUT OPERATIONS
The following pages illustrate unique input operations performed at the control panel that you would not expect a
customer to perform every day. The input operations described are: Temperature Unit Selection Mode, Sabbath
Mode, Showroom Mode, Manual Zone Disable Mode and Manual Freezer Evaporator Defrost.
Temperature Units Selection Mode (Selecting Degrees Fahrenheit or Degrees Celsius Display)
The electronic control is initially set to display temperature in Fahrenheit (°F) units of measure. Units of measure
can be converted from °F to °C (Celsius), and/or back again. This operation is called Temperature Units Selection.
To convert temperature units of measure from Fahrenheit (°F) to Celsius (°C) readings, withing the first minute of
switching the unit ON, press and hold the door ajar alarm bell ON/OFF key and the UNIT ON/OFF key simultane-
ously for five (5) seconds, then release the keys (See Figure 3-9). “ °C “ will appear on the LCD indicating that tem-
peratures will now be displayed in Celsius units of measure. To convert back to Fahrenheit units of measure, repeat
the steps above (See Figure 3-10).
NOTES:
•Temperature Units Selection must be performed within the first minute after switching the unit ON.
•Temperature Units Selection Mode will end ten (10) seconds after the last key stroke.
•Do not press and hold the UNIT ON/OFF key first, that will simply switch the unit OFF.
UNITICE
REFRIGERATOR ON/OFF ON/OFF ON/OFF
WARMERCOLDER
FREEZER WARMERCOLDER
Figure 3-10. Converting Back to Fahrenheit Units of Measure
(within ten (10) seconds of previous key stroke and/or within first minute after switching unit ON)
Press and Hold the Door Ajar Alarm Bell Key and The UNIT ON/OFF Keys
UNITICE
REFRIGERATOR ON/OFF ON/OFF ON/OFF
WARMERCOLDER
FREEZER WARMERCOLDER
Figure 3-9. Converting to Celsius Units of Measure (within first minute after switching unit ON)
Press and Hold the Door Ajar Alarm Bell Key and The UNIT ON/OFF Keys for Five (5) Seconds
Press and hold for 5 seconds
Press and hold for 5 seconds

Page 15
3-8
#7015817 - Revision A - January, 2010
General Information INTEGRA
INTEGRATED TED (736 T
(736 Tall SWS #2970000) all SWS #2970000) SERIES SERIES
UNITICE
REFRIGERATOR ON/OFF ON/OFF ON/OFF
WARMERCOLDER
FREEZER WARMERCOLDER
UNITICE
REFRIGERATOR ON/OFF ON/OFF ON/OFF
WARMERCOLDER
FREEZER WARMERCOLDER
Figure 3-12. Then Press and Hold UNIT ON/OFF Key for 10 Seconds
UNITICE
REFRIGERATOR ON/OFF ON/OFF ON/OFF
WARMERCOLDER
FREEZER
OFF WARMERCOLDER
Showroom Mode
Showroom Mode was incorporated into the electronic control system so that units could be displayed in a showroom
setting. When in Showroom Mode, all cooling functions are disabled, but the lighting system remains active.
To initiate Showroom Mode, the unit must first be switched OFF using the UNIT ON/OFF key (See Figure 3-13),
then press and hold either pair of WARMER and COLDER keys, then the UNIT ON/OFF key, then release all three
keys (See Figure 3-14). To return the unit to normal operation, repeat the steps above.
NOTES
•Always check set-points after returning unit to normal operation.
•It is possible to determine if a unit is in Showroom Mode by initiating Diagnostic Mode. If “Sr” is observed in the
left temperature display area during Diagnostic Mode, the unit is in Showroom mode. Initiating Diagnostic Mode
is covered later in this section.
Figure 3-14. Then Press and Hold WARMER and COLDER Keys, Then the UNIT ON/OFF Key
Figure 3-13. To Enter (or Exit) Showroom Mode, Switch Unit OFF First
UNITICE
REFRIGERATOR ON/OFF ON/OFF ON/OFF
WARMERCOLDER
FREEZER
OFF WARMERCOLDER
Press and hold for 10 seconds
Sabbath Mode
Sabbath Mode was incorporated into the electronic control system for the observance of certain religious days.
Initiating Sabbath Mode disables the LCD, lighting system, ice making system and door ajar alarm feature.
To initiate Sabbath Mode, the unit must first be switched OFF using the UNIT ON/OFF key (See Figure 3-11), then
press and hold the UNIT ON/OFF key until the LCD and lights switch OFF, approximately ten (10) seconds (See
Figure 3-12). To return to normal operation, press and release the UNIT ON/OFF key.
NOTES:
•During Sabbath Mode, the LCD is disabled and set-points cannot be changed.
•During Sabbath Mode, the compartment thermistors still control compressor operation, except when high offset is
reached, there is a random fifteen (15) to twenty-five (25) second delay before compressors are energized.
Figure 3-11. To Enter Sabbath Mode, Switch Unit OFF First

Page 16
3-9 #7015817 - Revision A - January, 2010
INTEGRA
INTEGRATED TED (736 T
(736 Tall SWS #2970000) all SWS #2970000) SERIES SERIES General Information
Manual Zone Disable Mode
Manual Zone Disable Mode allows a customer or Service Technician to switch one zone off for interior cleaning,
defrosting, or diagnostic purposes, while allowing the other zone to continue cooling.
To initiate Manual Zone Disable Mode, the unit must first be switched OFF using the UNIT ON/OFF key (See Figure
3-15), then press and hold the WARMER key for the zone being disabled, then the UNIT ON/OFF key, then release
both keys (See Figure 3-16). The LCD will display “- -” (double dashes) in place of temperature readings for the
zone chosen, indicating all cooling functions for that zone are disabled. To return the unit to normal operation,
repeat the steps above, or press UNIT ON/OFF key.
NOTE: Always check set-points after returning unit to normal operation.
UNITICE
REFRIGERATOR ON/OFF ON/OFF ON/OFF
WARMERCOLDER
FREEZER WARMERCOLDER
Figure 3-16. Then Press and Hold WARMER Key for Zone Being Disabled,
Then the UNIT ON/OFF Key.
Figure 3-15. To Enter (or Exit) Manual Zone Disable Mode, Switch Unit OFF First
Indicating that all cooling functions
for that zone are disabled.
Manual Freezer Evaporator Defrost
Manual Freezer Evaporator Defrost was incorporated into the electronic control to assist in servicing and diagnos-
tics.
To initiate manual freezer evaporator defrost, press and hold the ICE ON/OFF key for five (5) seconds, then release
the key. (See Figure 3-17).
NOTE: Manual Freezer Evaporator Defrost will not operate if unit is in Sabbath Mode.
Figure 3-17. Initiate Manual Freezer Evaporator Defrost - Press and Hold ICE ON/OFF key for 5 Seconds
UNITICE
REFRIGERATOR ON/OFF ON/OFF ON/OFF
WARMERCOLDER
FREEZER
OFF WARMERCOLDER
ICE UNITICE
REFRIGERATOR ON/OFF ON/OFF ON/OFF
WARMERCOLDER
FREEZER WARMERCOLDER
Press and hold for 5 seconds

Page 17
3-10
#7015817 - Revision A - January, 2010
General Information INTEGRA
INTEGRATED TED (736 T
(736 Tall SWS #2970000) all SWS #2970000) SERIES SERIES
FUNCTIONS OF THE ELECTRONIC CONTROL SYSTEM
The following pages explain monitoring, regulating and controlling functions of the electronic control system. In most
cases signal traces of a model 736TCI wiring schematic are used to show current flow for functions being explained.
Supply Power to the Lighting System
AC line voltage is supplied to the lighting system through the control board when the unit is switched ON by pressing
the UNIT ON/OFF key, so when the door or drawers are open, the light switches allows power to the lights (See
Figure 3-18).
NOTES:
•the AC voltage signal to the lights is monitored by the microprocessor to control the door ajar alarm feature, and
with the use of a relay for the drawer compartments, the evaporator fan is also controlled.
•If in Sabbath Mode, the lighting system is disabled. Sabbath Mode will be covered later.
Figure 3-18. 736TCI Signal Trace Schematic of Lighting System
WHITE
FREEZER
LIGHT
SWITCHES
LIGHT SWITCH TERMINATOR REFRIGERATOR
LIGHTS
FREEZER
LIGHTS
ORANGE
ORANGE/BLACK
ORANGE/BLACK
ORANGE/BLACK
REFRIGERATOR LIGHT
J6
J5
J3
E2 E7 E10 E6
J2 J1
J7
J4
ORANGE
ORANGE/BLACK
13
4
2
6
78
ORANGE/BLACK
5
NEUT
115 VOLTS
60 CYCLES
L1 WHITE
GRAY
BLACK
WHITE
HIGH VOLTAGE
AC Line voltage is supplied
through J7 to lighting sys-
tem unless unit is switched
OFF or is in Sabbath Mode
NOTE:
Door Ajar Sense Lines

Page 18
3-11 #7015817 - Revision A - January, 2010
INTEGRA
INTEGRATED TED (736 T
(736 Tall SWS #2970000) all SWS #2970000) SERIES SERIES General Information
Monitor, Regulate and Display Compartment Temperatures
The temperature signal from the compartment thermistors is monitored by the microprocessor and the average tem-
perature is displayed, though the actual air temperature may fluctuate slightly (See Figure 3-19).
NOTE: If average temperature changes, it will change by no more than one degree per minute on the LCD .
When the compartment temperature reaches high offset, power is supplied to the compressor and condenser fan. If
the door is closed power is also supplied to the upper fan motor. On the drawer circuit the signal from the
orange/black wire is used to indicated whether a drawer switch is open or closed; if closed, power is allowed through
the fan relay to the lower evaporator fan motor (to the only evaporator fan in the 736TFI). (See Figure 3-19)
As the temperature drops, and the compartment temperature reaches low offset, power to cooling components is
interrupted, cycling them off.
MFREEZER
FAN MOTOR
WHITE
WHITE
FREEZER
LIGHT
SWITCHES
LIGHT SWITCH REFRIGERATOR
LIGHTS
FREEZER
LIGHTS
ORANGE/BLACK
ORANGE/BLACK
RED
REFRIGERATOR
CONDENSER
FAN MOTOR M
M
WHITE/RED
PURPLE
J6
J5
J3
E2 E7 E10 E6
J2 J1
J7
J4
ORANGE
ORANGE/BLACK
FAN CONTROL
1
RELAY
3
4
2
6
78
ORANGE/BLACK
FREEZER
5
PINK
FREEZER
OVERLOAD
PROTECTOR
NEUT
115 VOLTS
60 CYCLES
L1
REFRIGERATOR
OVERLOAD
PROTECTOR
FREEZER
COMPRESSOR STARTING RELAY
RUNNING
CAPACITOR
M
REFRIGERATOR
COMPRESSOR
M
REFRIGERATOR
FAN SWITCH
REFRIGERATOR
FAN MOTOR
WHITE
GRAY
BLACK
PURPLE
WHITE RED
STARTING
RELAY
RUNNING
CAPACITOR
HIGH VOLTAGE
(WHEN USED)
(WHEN USED)
RED
LOW VOLTAGE
MEMBRANE SWITCH
BROWN
BLUE
BROWN
BLUE FZR CAB
THERMISTOR
REF CAB
THERMISTOR
E2 E6E10E7
J5
PIN 1
PIN 1
J7
PIN 1
J3
J2
PIN 1
PIN 1
PIN 1
PIN 1
J1
J4
DISPLAY
0
J6
0
0
0
0
0
0
Figure 3-19. 736TCI Signal Trace Schematic (High & Low Voltage) of Regulating Temperatures
Average temperature displayed
Calling for
cooling.
Condenser Energized
No power to
drawer lights, so
relay switched to
energize fan
Refrigerator fan energized
Compressor(s)
energized

Page 19
3-12
#7015817 - Revision A - January, 2010
General Information INTEGRA
INTEGRATED TED (736 T
(736 Tall SWS #2970000) all SWS #2970000) SERIES SERIES
Control Condenser Fan Run
In all models except the 736TFI, the microprocessor senses the line volt output supplied to both compressors. If
either compressor is running, a signal is sent to the condenser fan relay on the control board to close, supplying
power to the condenser fan. If both compressors are off, the condenser fan is off (not shown).
In the model 736TFI, the condenser fan is powered off the same line as the compressor, so it cycles with the com-
pressor with out the use of a relay on the control board (See Figure 3-20)
NOTE: As noted earlier, the drawer circuit signal from the orange/black wire is used to indicated whether a drawer
switch is open or closed; if closed, power is allowed through the fan relay to the evaporator fan motor, so it too will
cycle with the compressor.
Figure 3-20. 736TFI Signal Trace Schematic of Condenser Fan (plus Compressor and Evap Fan) Wiring
M
TERMINATOR
LIGHT
SWITCHES WHITE/BLUE
DRAWER
LIGHT SWITCH ORANGE
ORANGE/BLACK
ORANGE/BLACK
ORANGE/BLACK
J5
J3
E2 E7 E10 E6
J2 J1
J7
J4
DOOR
ORANGE
ORANGE/BLACK
LIGHT
PURPLE
J6
ORANGE/BLACK
MSTARTING RELAY
PURPLE
FAN CONTROL
1
RELAY
3
4
26
78
RED/BLACK
FREEZER
WHITE
FREEZER
OVERLOAD
PROTECTOR
FREEZER
COMPRESSOR
RUNNING
CAPACITOR
FREEZER
FAN SWITCH
FREEZER
FAN MOTOR
RED/BLACK
(WHEN USED)
M
CONDENSER
FAN MOTOR
PURPLE
NEUT
115 VOLTS
60 CYCLES
L1 WHITE
GRAY
BLACK
WHITE
HIGH VOLTAGE
RED
Condenser Energized
No power to
drawer lights, so
relay switched to
energize fan Compressor(s)
energized
Refrigerator fan energized

Page 20
3-13 #7015817 - Revision A - January, 2010
INTEGRA
INTEGRATED TED (736 T
(736 Tall SWS #2970000) all SWS #2970000) SERIES SERIES General Information
Monitor and Control Refrigerator “Fan-Assisted, Off-Cycle Defrost”
Temperature signals from refrigerator evaporator's thermistors are observed by the microprocessor. During off cycle
defrost, if a refrigerator zone temperature reaches high offset (calling for cooling) before evaporator temperature
rises to 38°F (3°C), no power will be supplied the the compressor. But, the the zone evaporator fan will switch ON.
Once the evaporator temperature reaches 38°F (3°C), normal cooling functions begin. (See Figure 3-21).
NOTES:
•If refrigerator compartment thermistor is faulty, compressor operation defaults to 20 minutes ON, 40 minutes OFF
cycling, EE appears in left of LCD, SERVICE will flash and Error Code 05 will be logged.
•If evaporator thermistor is faulty, the compressor will not energize until zone air temperature exceeds high offset
by 5°F (3°C). SERVICE flashes and Error Code 06 is logged.
•When in Sabbath Mode,
the refrigerator compart-
ment thermistor still con-
trols compressor opera-
tion, except there is a
random 15 to 25 second
delay before the com-
pressor is energized.
Figure 3-21. 736TCI Signal Trace Schematic (High & Low Voltage) of Refrigerator Off-Cycle Defrost
M
M
J6
J5
J3
E2 E7 E10 E6
J2 J1
J7
J4 13
4
5
NEUT
115 VOLTS
60 CYCLES
L1
REFRIGERATOR
OVERLOAD
PROTECTOR
M
REFRIGERATOR
COMPRESSOR
M
REFRIGERATOR
FAN SWITCH
REFRIGERATOR
FAN MOTOR
WHITE
GRAY
BLACK
WHITE RED
STARTING
RELAY
RUNNING
CAPACITOR
HIGH VOLTAGE
(WHEN USED)
RED
LOW VOLTAGE
MEMBRANE SWITCH
REF EVAP
THERMISTOR
BROWN
BROWN
BLUE
BLUE/WHITE
REF CAB
THERMISTOR
E2 E6E10E7
J5
PIN 1
PIN 1
J7
PIN 1
J3
J2
PIN 1
PIN 1
PIN 1
PIN 1
J1
J4
DISPLAY
0
J6
0
0
0
0
0
0
2. Evaporator temperature
below 38°F (3°C)
1. High offset temperature
reached, calling for
cooling
4. No power supplied to
refrigerator compressor
circuit
3. Evaporator fan energized