Sub-Zero 601R-2, 601RG-2, 601F-2, 611-2, 611G-2 Technical & Service Manual

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© SUB-ZERO FREEZER COMPANY INC. 2006 ALL RIGHTS RESERVED JOB AID #3758407 (Revision B - August, 2006)

Approximate Starting Serial #2127000

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SSeerrvviiccee MMaannuuaall

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General Information

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#3758407 - Revision B - August, 2006

SECTION 1

GENERAL INFORMATION

General Information

Built-In

Built-In

(600-

(600-

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2

)

)

Series

Series

1-2

#3758407 - Revision B - August, 2006

TECHNICAL ASSISTANCE

If you should have any questions regarding the
600-2 Series and/or this manual, please contact:

Sub-Zero Freezer Company, Inc.

ATTN: Service Department

P.O. Box 44988

Madison, WI 53744 - 4988

Customer Service & Parts / Warranty Claims

Phone #: (800) 222 - 7820

Technical Assistance

Phone #: (800) 919 - 8324

Customer Service & Technical Assistance

Facsimile #: (608) 441 - 5887

Parts / Warranty Claims

Facsimile #: (608) 441 - 5886

Service Department E-Mail Address:

[e-mail]

Office Hours:

7:00 AM to 7:00 PM Central Time

Monday through Friday

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 differ­ent 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 600-2 Series Technical Service Manual has been compiled to provide the most recent service information for
600-2 Series units. 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 on
a 600-2 Series unit.

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

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

In addition, please pay attention to the signal word
“NOTE”, which highlights information that is espe-
cially important for the topic being covered.

This manual is designed to be used by Authorized Service Personnel only. Sub-Zero Freezer Co., Inc.
assumes no responsibility for any repairs made on Sub-Zero refrigeration units by anyone other than
Authorized Service Technicians.

Information and images contained in this manual are the copyright property of Sub-Zero Freezer Company, 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 consent of Sub-Zero Freezer Company, Inc.

© Sub-Zero Freezer Company, Inc, all rights reserved.

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Section 1 - General Information 1-1

Introduction / Safety Information / Technical Assistance .. 1-2

Table of Contents .............................................................. 1-3

Warranty Information ........................................................ 1-5

Model Description ............................................................. 1-6

Section 2 - Inst

allation Information 2-1

Installation Considerations ............................................... 2-2

Installation Warning ....................................................... 2-2

Anti-Tip Component Installation .................................... 2-2

Dual Unit Installation ..................................................... 2-3

Unit Leveling ................................................................. 2-3

Door Adjustment ........................................................... 2-4

Special Side-by Side Door Adjustment ......................... 2-5

Freezer Drawer Adjustment .......................................... 2-6

Vertical Adjustment / Pitch Adjustment ..................... 2-6

Door Panel Installation .................................................. 2-7

90° Door Stop Pin / 90° Door Stop Cam ...................... 2-8

Section 3 - Electronic Control System Information

3-1

Terminology & Component Descriptions .......................... 3-2

Basic Electronic Control System ...................................... 3-3

Control Board Layout & Summary Table ......................... 3-4

Control Panel Layout ....................................................... 3-5

Basic Electronic Control Input Operations ....................... 3-6

Unit ON/OFF ................................................................ 3-6

Adjusting Set-Point (Temp. Adjustment) ...................... 3-6

Icemaker System ON/OFF ........................................... 3-7

Door Ajar Alarm Feature ON/OFF ................................ 3-7

Accent Lighting System ON/OFF .................................. 3-7

Functions of Electronic Control System ........................... 3-8

Supply Power to Lighting System ................................. 3-8

Monitor, Regulate and Display Temps ........................... 3-9

Control Condenser Fan Operation ............................. 3-10

Minimize Condensation on Glass Door ....................... 3-11

Refrigerator Off-Cycle Defrost .................................... 3-12

“Adaptive Defrost” of Freezer Evaporator .................. 3-13

Monitor Compressors, Display if Service is Needed ... 3-14

Monitor Icemaker, Display if Service is Needed ......... 3-15

Unique Electronic Control Input Operations ................... 3-16

Temperature Units Selection Mode ............................ 3-16

Sabbath Mode ............................................................ 3-17

Showroom Mode ........................................................ 3-17

Manual Compartment Disable Mode ......................... 3-18

Manual Freezer Evaporator Defrost ........................... 3-18

Possible Error Indicators ............................................... 3-19

Troubleshooting Input Operations ................................. 3-20

Diagnostic Mode ......................................................... 3-20

Diagnostic Mode Indicators ...................................... 3-21

Error Code Table ...................................................... 3-21

Clearing Error Codes ................................................... 3-22

Manual Component Activation Mode .......................... 3-22

Temperature Log Recall Mode ................................... 3-23

Compartment Temperature History Only ................. 3-23

Compartment & Evaporator Temperature History .... 3-24

Temperature Log Event Indicators ........................... 3-25

Temperature Log Index Chart ................................. 3-26

Section 4 - Sealed System Information 4-1

HFC 134a Refrigerant Information ................................... 4-2

General 134a Rules ...................................................... 4-2

Sealed System Repair Procedures .............................. 4-3

Sealed System Operation ................................................ 4-4

Refrigerant Flow Diagrams ............................................... 4-6

Section 5 -

Air Flow & Fan Blade Spacing 5-1

Model 601R-2 .................................................................... 5-2

Model 601RG-2 ................................................................. 5-2

Model 601F-2 .................................................................... 5-3

Models 611-2 & 650-2 ....................................................... 5-3

Models 611G-2 & 650G-2 ................................................. 5-4

Models 632-2 & 642-2 ....................................................... 5-4

Model 661-2 ...................................................................... 5-5

Model 685-2 (PTS #2271174) ........................................... 5-5

Model 695-2 (PTS #2269189) .......................................... 5-6

Mod 685-2 (SWS #2271174) & 695-2 (SWS #2269189) ...5-6

Section 6 - Icemaker Information

6-1

Icemaker System Information............................................ 6-2

Icemaker Components....................................................... 6-2

Icemaker Operation............................................................ 6-3

Manually Stopping Icemaker.............................................. 6-8

Manually Starting Icemaker................................................ 6-9

Adjust Water Fill Level....................................................... 6-9

Section 7 - Component

Access and Removal 7-1

WARNINGS and CAUTIONS ............................................ 7-2

Component Access and Removal Table of Contents ....... 7-2

Exterior Cosmetic / Mechanical (All Models) ................. 7-3

Refrig. Interior Cosmetic/Mechanical (All Models) ....... 7-15

Freezer Interior Cosmetic / Mechanical (601F-2) ........ 7-24

Freezer Interior Cosmetic / Mechanical

(611-2, 611G-2, 650-2, 650G-2) ............................... 7-30

Freezer Interior Cosmetic / Mechanical

(632-2, 642-2, 661-2) ............................................... 7-36

Freezer Interior Cosmetic / Mechanical

(685-2-PTS#2271174, 695-2-PTS#2269189) ......... 7-42

Freezer Interior Cosmetic / Mechanical

(685-2-SWS#2271174, 695-2-SWS#2269189) ....... 7-48

Lower Compressor Area Mechanical

(601R-2, 601RG-2, 601F-2) ..................................... 7-55

Upper Compressor Area Mechanical

(All Models Except 601’s) ....................................... 7-56

Sealed System (Models 601R-2, 601RG-2, 601F-2) .. 7-57

Sealed System (All Models Except 601’s) ................... 7-61

TABLE OF CONTENTS

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Page #

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Section 8 - Troubleshooting Guides 8-1

Troubleshooting Guides .................................................... 8-2

How to Use Error Code Troubleshooting Guide ........... 8-2

Error Code Table ........................................................... 8-2

Error Code Troubleshooting Guide ................................... 8-3

How to Use General Troubleshooting Guide ............... 8-5

Thermistor Location Code Tables ............................. 8-5

General Troubleshooting Guide Table of Contents ......... 8-6

General Troubleshooting Guide ....................................... 8-6

Sealed System Diagnostic Tables ................................. 8-16

Normal Operating Pressures Table ............................ 8-16

Temperature / Pressure Table ................................... 8-17

Pressure Indications Table ......................................... 8-17

Control Panel Membrane Switch / Ribbon Cable Test .. 8-18

Section 9 - T

Model 601R-2 ................................................................... 9-2

Model 601RG-2 ................................................................ 9-3

Model 601F-2 ................................................................... 9-4

Model 611-2 ...................................................................... 9-5

Model 611G-2 ................................................................... 9-6

Model 632-2 ..................................................................... 9-7

Model 642-2 ..................................................................... 9-8

Model 650-2 ..................................................................... 9-9

Model 650G-2 ................................................................. 9-10

Model 661-2 .................................................................... 9-11

Model 685-2 (PTS #2271174) ........................................ 9-12

Model 685-2 (SWS #2271174) ....................................... 9-13

Model 695-2 (PTS #2269189) ........................................ 9-14

Model 695-2 (SWS #2269189) ........................................ 9-15

echnical Data Tables 9-1

Section 10 - W

Model 601R-2 ................................................................. 10-2

Model 601RG-2 .............................................................. 10-4

Model 601F-2 ................................................................. 10-6

Model 611-2 / 650-2 ........................................................ 10-8

Model 611G-2 / 650G-2 ................................................. 10-10

Model 632-2 / 642-2 ...................................................... 10-12

Model 661-2 .................................................................. 10-14

Mod. 685-2 (PTS #2271174), 695-2 (PTS #2269189) .. 10-16
Mod. 685-2 (SWS #2271174), 695-2 (SWS #2269189). 10-18

iring Diagrams & Schematics 10-1

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WARRANTY INFORMATION

This page summarizes the 2, 5 & 12 Year Warranty pro-
vided with every 600-2 Series unit, 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.

NOTE: Stainless Steel (Classic, carBon & Platinum)

doors, panels & product frames are covered by a 60

day parts & labor warranty for cosmetic defects.

• 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.

NOTE: Stainless Steel (Classic, carBon & Platinum)
doors, panels & product frames are covered by a 60
day parts & labor warranty for cosmetic defects.

• 5 Year SEALED SYSTEM, **parts and labor.

ONE & FIVE YEAR Display/Model Home Warranty
(Display units sold three years after date of manu­facture)

• 1 Year TOTAL PRODUCT, *parts and labor.

NOTE: Stainless Steel (Classic, carBon & Platinum)
doors, panels & product frames are covered by a 60
day parts & labor warranty for cosmetic defects.

• 5 Year SEALED SYSTEM, **parts and labor.

Figure 1-1. Serial Tag Layout (Layout Reference Only)

L

LISTED

U

O

R

CUS

Date Code

776N

LISTED HOUSEHOLD

REFRIGERATOR OR FREEZER

REFRIGERANT

SERIAL NUMBER

MADISON, WI

PRODUCT SERVICE 1-800-222-7820

MODEL

115Vac, 60Hz, 1 Phase

TOTAL AMPS

FREEZER CO., INC.

FREEZER

ALSO VERIFIED IN
ACCORDANCE WITH
ENERGY STANDARD

CAN/CSA-C300-91

REFRIGERATOR

632/S 2 0000000

10.0

9.0 2.0 R134a

Jul 2003

Model Number

Serial Number

Manufacture Date

Refrigerant Charge

Total Amps Refrigerant Type

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 (Classic, Platinum & Carbon) 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 Sub­Zero is arranged and stored under the unit serial num­ber, 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 on SIDE-BY-SIDE models is located by
the top door hinge in the freezer compartment.

• The serial tag on OVER-AND-UNDER models is locat­ed by the top door hinge in the refrigerator compart­ment.

• The serial tag on ALL-REFRIGERATOR and ALL­FREEZER models is located by the top door hinge in
the refrigeration compartment.

General Information

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MODEL DESCRIPTIONS

These pages briefly describes the models covered in this 600-2 Series Technical Service Manual (Models 601R-2,
601RG-2, 601F-2, 611-2, 611G-2, 632-2, 642-2, 650-2, 650G-2, 661-2, 685-2, 695-2) The letter after the backward

slash in the alpha-numeric model number indicates the exterior variation (“/F” indicates a Framed look with the door
trim visible, “/O” indicates that it is intended for the door panels to Overlay the door trim, “/S” indicates the unit is

Classic Stainless Steel finish, ”/B” indicates the unit is carBon Stainless Steel finish, ”/P” indicates the unit is
Platinum Stainless Steel finish). The “-2” means this is the second design build for this series.

The following lists contain the model numbers of the 600-2 Series with a brief description of each model. A diagram
of the basic model configuration accompanies each list.

NOTE: Functional parts are common to each model configuration, meaning for example, models 601R/F-2, 601R/O­2 and 601R/S-2 will utilize common functional parts. For this reason, the backward slash and letter after the model
numbers will only be used in this manual when necessary.

Model 601R-2

601R/F-2

601R/O-2

601R/S-2

601R/B-2

601R/P-2

MODEL DESCRIPTION

36” Wide, All-Refrigerator, Framed Door Trim with
Handle, Louver Grille

36” Wide, All-Refrigerator, Overlay Door Trim with­out Handle, Louver Grille

36” Wide, All-Refrigerator, Classic Stainless Steel
Door and Grille

36” Wide, All-Refrigerator, CarBon Stainless Steel
Door and Grille

36” Wide, All-Refrigerator, Platinum Stainless
Steel Door and Grille

Model 601RG-2

601RG/F-2

601RHAG/F-2

601RG/O-2

601RHAG/O-2

601RG/S-2

601RHAG/S-2

601RG/B-2

601RHAG/B-2

601RG/P-2

601RHAG/P-2

MODEL DESCRIPTION

36” Wide, All-Refrigerator, Glass Door, Framed
Door trim with Handle, Louver Grille

(Same as above with High Altitude Glass)

36” Wide, All-Refrigerator, Glass Door, Overlay
Door Trim w/o handle, Louver Grille

(Same as above with High Altitude Glass)

36” Wide, All-Refrigerator, Glass Door, Classic
Stainless Steel Door and Grille

(Same as above with High Altitude Glass)

36” Wide, All-Refrigerator, Glass Door, carBon
Stainless Steel Door and Grille

(Same as above with High Altitude Glass)

36” Wide, All-Refrigerator, Glass Door, Platinum
Stainless Steel Door and Grille

(Same as above with High Altitude Glass)

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Model 611G-2

611G/F-2

611HAG/F-2

611G/O-2

611HAG/O-2

611G/S-2

611HAG/S-2

611G/B-2

611HAG/B-2

611G/P-2

611HAG/P-2

MODEL DESCRIPTION

30” Wide, Over/Under, Glass Refrig Door, Framed
Door trim w/Handles, Louver Grille (Standard)

(Same as above with High Altitude Glass)

30” Wide, Over/Under, Glass Refrig Door, Overlay
Door Trim without handles, Panel Grille (Standard)

(Same as above with High Altitude Glass)

30” Wide, Over/Under, Glass Refrig Door, Classic
Stainless Steel Door and Grille

(Same as above with High Altitude Glass)

30” Wide, Over/Under, Glass Refrig Door, carBon
Stainless Steel Door and Grille

(Same as above with High Altitude Glass)

30” Wide, Over/Under, Glass Refrig Door,
Platinum Stainless Steel Door and Grille

(Same as above with High Altitude Glass)

Model 611-2

611/F-2

611/O-2

611/S-2

611/B-2

611/P-2

MODEL DESCRIPTION

30” Wide, Over/Under, Framed Door Trim with
handles, Louver Grille (Standard)

30” Wide, Over/Under, Overlay Door Trim without
handles, Panel Grille (Standard)

30” Wide, Over/Under, Classic Stainless Steel
Doors and Grille

30” Wide, Over/Under, carBon Stainless Steel
Doors and Grille

30” Wide, Over/Under, Platinum Stainless Steel
Doors and Grille

Model 601F-2

601F/F-2

601F/O-2

601F/S-2

601F/B-2

601F/P-2

MODEL DESCRIPTION

36” Wide, All-Freezer, Framed Door Trim with
Handle, Louver Grille

36” Wide, All-Freezer, Overlay Door Trim without
Handle, Louver Grille

36” Wide, All-Freezer, Classic Stainless Steel Door
and Grille

36” Wide, All-Freezer, CarBon Stainless Steel
Door and Grille

36” Wide, All-Freezer, Platinum Stainless Steel
Door and Grille

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Model 632-2

632/F-2

632/O-2

632/S-2

632/B-2

632/P-2

MODEL DESCRIPTION

48” Wide, Side-by-Side, Framed Door Trim with
Handles, Louver Grille (Standard)

48” Wide, Side-by-Side, Overlay Door Trim with­out Handles, Panel Grille (Standard)

48” Wide, Side-by-Side, Classic Stainless Steel
Door and Grille

48” Wide, Side-by-Side, carBon Stainless Steel
Door and Grille

48” Wide, Side-by-Side, Platinum Stainless Steel
Door and Grille

Model 642-2

642/F-2

642/O-2

642/S-2

642/B-2

642/P-2

MODEL DESCRIPTION

42” Wide, Side-by-Side, Framed Door Trim with
Handles, Louver Grille (Standard)

42” Wide, Side-by-Side, Overlay Door Trim with­out Handles, Panel Grille (Standard)

42” Wide, Side-by-Side, Classic Stainless Steel
Door and Grille

42” Wide, Side-by-Side, carBon Stainless Steel
Door and Grille

42” Wide, Side-by-Side, Platinum Stainless Steel
Door and Grille

Model 650-2

650/F-2

650/O-2

650/S-2

650/B-2

650/P-2

MODEL DESCRIPTION

36” Wide, Over/Under, Framed Door Trim with
handles, Louver Grille (Standard)

36” Wide, Over/Under, Overlay Door Trim without
handles, Panel Grille (Standard)

36” Wide, Over/Under, Classic Stainless Steel
Doors and Grille

36” Wide, Over/Under, carBon Stainless Steel
Doors and Grille

36” Wide, Over/Under, Platinum Stainless Steel
Doors and Grille

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Model 650G-2

650G/F-2

650HAG/F-2

650G/O-2

650HAG/O-2

650G/S-2

650HAG/S-2

650G/B-2

650HAG/B-2

650G/P-2

650HAG/P-2

MODEL DESCRIPTION

36” Wide, Over/Under, Glass Refrig Door, Framed
Door trim w/Handles, Louver Grille (Standard)

(Same as above with High Altitude Glass)

36” Wide, Over/Under, Glass Refrig Door, Overlay
Door Trim without handles, Panel Grille (Standard)

(Same as above with High Altitude Glass)

36” Wide, Over/Under, Glass Refrig Door, Classic
Stainless Steel Door and Grille

(Same as above with High Altitude Glass)

36” Wide, Over/Under, Glass Refrig Door, carBon
Stainless Steel Door and Grille

(Same as above with High Altitude Glass)

36” Wide, Over/Under, Glass Refrig Door,
Platinum Stainless Steel Door and Grille

(Same as above with High Altitude Glass)

Model 661-2

661/F-2

661/O-2

661/S-2

661/B-2

661/P-2

MODEL DESCRIPTION

36” Wide, Side-by-Side, Framed Door Trim with
Handles, Louver Grille (Standard)

36” Wide, Side-by-Side, Overlay Door Trim with­out Handles, Panel Grille (Standard)

36” Wide, Side-by-Side, Classic Stainless Steel
Door and Grille

36” Wide, Side-by-Side, carBon Stainless Steel
Door and Grille

36” Wide, Side-by-Side, Platinum Stainless Steel
Door and Grille

Model 685-2

685/F-2

685/O-2

685/S-2

685/B-2

685/P-2

MODEL DESCRIPTION

42” Wide, Side-by-Side, Ice/Water Dispenser,
Framed Trim w/Handles, Louver Grille (Standard)

42” Wide, Side-by-Side, Ice/Water Dispenser,
Overlay Trim w/o Handles, Panel Grille (Standard)

42” Wide, Side-by-Side, Ice/Water Dispenser,
Classic Stainless Steel Door and Grille

42” Wide, Side-by-Side, Ice/Water Dispenser,
carBon Stainless Steel Door and Grille

42” Wide, Side-by-Side, Ice/Water Dispenser,
Platinum Stainless Steel Door and Grille

661

661

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Model 695-2

695/F-2

695/O-2

695/S-2

695/B-2

695/P-2

MODEL DESCRIPTION

48” Wide, Side-by-Side, Ice/Water Dispenser,
Framed Trim w/Handles, Louver Grille (Standard)

48” Wide, Side-by-Side, Ice/Water Dispenser,
Overlay Trim w/o Handles, Panel Grille (Standard)

48” Wide, Side-by-Side, Ice/Water Dispenser,
Classic Stainless Steel Door and Grille

48” Wide, Side-by-Side, Ice/Water Dispenser,
carBon Stainless Steel Door and Grille

48” Wide, Side-by-Side, Ice/Water Dispenser,
Platinum Stainless Steel Door and Grille

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SECTION 2

INSTALLATION

INFORMATION

Installation Information

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IF UNIT IS UNDER A SOLID SOFFIT AND CLEARANCE BETWEEN SOFFIT AND TOP OF UNIT IS GREATER
THEN 1” (25.4 mm), OR IF UNIT IS NOT UNDER SOLID SOFFIT, UNIT COULD TIP FORWARD UNDER CER­TAIN LOAD CONDITIONS. FAILURE TO INSTALL ANTI-TIP COMPONENTS AND EXTEND LEVELERS TO
FLOOR ACCORDING TO INSTALLATION MANUAL COULD RESULT IN SERIOUS INJURY OR DEATH.

INSTALLATION CONSIDERATIONS

This section covers 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 movement, door misalignment, improper door and drawer sealing, internal frost
or condensation, exterior condensation, warm compartment temperatures, etc.

NOTE: If additional installation information is needed, refer to the complete Installation Guide, or contact Sub-Zero
Service Department.

Anti-Tip Components Installation (All Models)

If anti-tip components (aka wood block / blocking kit)
need be installed, follow these steps:

NOTE: These directions are supplied with each anti-tip
package.

1. Locate and mark two wall studs at back of unit
installation location (See Figure 2-1).

2. Identify and mark proper height to clear unit top.
Space between unit top and bottom of wood block
must NOT be more then 1/4" (6.1 mm) (See Figure
2-1).

3. Using the L-brackets and screws provided, secure
wood block to wall studs, located in step 1, making
sure screws extend 7/8" (22.2 mm) into each wall
stud. The wood block must extend a minimum of 3"
(76.2 mm) over unit (See Figure 2-1).

4. Utilizing front and rear levelers, raise and level unit
until it contacts wood block.

5. Refer to Installation Guide provided with the unit for
any additional information needed.

Figure 2-1. Anti-Tip Components

Wall Stud

Wood Block

Screws &
L-Bracket

Min. 3”
(76.2 mm)

Sub-Zero Unit

Built-In

Built-In

(600-

(600-

2

2

)

)

Series

Series

Installation Information

2-3

#3758407 - Revision B - August, 2006

Figure 2-4. Unit Leveling

Figure 2-3. Kickplate Removal

Unit Leveling (All Models)

NOTE: Unit must be installed before final leveling. If
unit is anchored to cabinets, remove anchor screws
before leveling, reinstalled after.

1. To level unit, first remove kickplate (See Figure 2-3).

2. To raise unit front, turn front leveler legs counter­clockwise, clockwise to lower (See Figure 2-4).

3. At front of unit base is an adjusting screw that reach­es to rear leveler/roller assembly. To raise unit rear,
use 5/16” socket wrench to turn adjusting screw
clockwise to raise, counterclockwise to lower (See
Figure 2-4).

NOTE: Level is best checked at top & side mainframe.

Kickplate

Turn adjusting
screws
clockwise
to raise rear

Turn front levelers
counterclockwise
to raise front.

Unit Base

Dual Unit Installations

Apply
heater
to left
side of
unit that
is to
right of
other
unit.

If two or more units are placed side by side and are
2” or less apart, a dual unit heater package should
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.

• Sales Accessory part #TTDUAL should be utilized.

(See Figure 2-2)

NOTE: Complete installation instructions are sup­plied with the #TTDUAL package.

Figure 2-2. Dual Unit Heater

Installation Information

Built-In

Built-In

(600-

(600-

2

2

)

)

Series

Series

2-4

#3758407 - Revision B - August, 2006

Figure 2-5. Top Door Hinge & Screws

Top door
hinge

Loosen & re-snug
screws to allow door
adjustment

Discard shipping
screws

Figure 2-6. Bottom Hinge Shim Installation

Bottom
Hinge
Shim

Door Adjustment (All Models)

NOTE: Unit must be level before adjusting doors.

If unit is properly installed, blocked and leveled, it may
still be necessary to adjust door(s) left to right and/or in
and out. Adjustments are performed at top and/or bot­tom door hinge(s).

1. Working on only one hinge at a time (top or bottom),
remove and discard two small Phillips head shipping
screws from door hinge before attempting adjust­ments (See Figure 2-5).

2. Loosen and re-snug door hinge mounting screws,
allowing door adjustment (See Figure 2-5).

3. After adjusting door, tighten door hinge mounting
screws and check for proper door seal.

NOTE: If one door on a side-by-side unit sits higher
than the other, bottom hinge shim (part #0183100) is
available. To install shim, remove shipping screws from
bottom door hinge, then loosen hinge mounting screws.
Insert shim(s) between bottom door hinge and bottom
door trim. Adjust door accordingly and retighten door
hinge screws (See Figure 2-6).

Also see Special Side-by-Side Door Adjustment instruc­tions on following page.

Built-In

Built-In

(600-

(600-

2

2

)

)

Series

Series

Installation Information

2-5

#3758407 - Revision B - August, 2006

Special Side-by-Side Door Adjustment

Occasionally after a side-by-side unit is properly installed, blocked and leveled, the refrigerator door top may stick
out farther then the freezer door top, even though the bottom of each door is flush. The adjustment procedure listed
below explains how to correct this. (For video showing this procedure, order part #3756530)

NOTE: Unit must be level before adjusting doors.

Special Side-by-Side Door Adjustment Procedure:

1. First -

Adjust Refrigerator Door Bottom Hinge OUT:

a. Extract shipping screws from refrigerator door bottom hinge. Then, loosen & re-snug bottom hinge mounting

screws.

b. Pull refrigerator door bottom hinge corner out to outer most limit & tighten hinge mounting screws.

NOTE: Check door gasket seal by refrigerator door bottom hinge. If gasket is not sealing, loosen & re-snug
mounting screws, and push refrigerator door bottom hinge corner in slightly until gasket seals.

c. Check door alignment. If refrigerator door top still sticks out farther then freezer door, perform second adjust-

ment.

2. Second -

Adjust Refrigerator Door Top Hinge IN:

a. With a pencil, trace location of refrigerator door top hinge for reference. Extract shipping screws from refrigera-

tor door top hinge, then loosen & re-snug top door hinge mounting screws.

b. Push refrigerator door top hinge corner in to inner most limit & tighten hinge mounting screws.

NOTE: Check door gasket seal around refrigerator
door. If gasket is not sealing, adjust accordingly.

c. Check door alignment. If refrigerator door top still sticks

out farther then freezer door, perform third adjustment.

3. Third -

Adjust Freezer Door Top Hinge OUT:

a With a pencil, trace location of freezer door top hinge

for reference. Extract shipping screws from freezer
door top hinge, then loosen & re-snug top door hinge
mounting screws.

b. Pull freezer door top hinge corner out to outer most limit

& tighten hinge mounting screws.

NOTE: Check door gasket seal by freezer door top
hinge. If gasket is not sealing, loosen & re-snug mount­ing screws, and push freezer door top hinge corner in
slightly until gasket seals.

c. Check door alignment. If refrigerator door top still sticks

out farther then freezer door, perform fourth adjustment.

4. Fourth -

Adjust Freezer Door Bottom Hinge IN:

a. Extract Phillips head shipping screws from freezer door

bottom hinge. Then, loosen & re-snug bottom door
hinge mounting screws.

b. Push freezer door bottom hinge corner in to inner most

limit & tighten hinge mounting screws.

NOTE: Check door gasket seal around freezer door. If
gasket is not sealing, adjust accordingly.

c. Check door alignment. Minor adjustments may still be

needed at this point, adjust accordingly.

Figure 2-7. Special Side-by-Side Door Adjustment

1 - OUT

2 -IN

4 - IN

3 - OUT

Installation Information

Built-In

Built-In

(600-

(600-

2

2

)

)

Series

Series

2-6

#3758407 - Revision B - August, 2006

Figure 2-8. Drawer Assembly Removal

Figure 2-9. Vertical Freezer Drawer Adjustment

Rear Screws

Front Screw

Adjust slide front up
or down as required

Figure 2-10. Drawer Front Pitch Adjustment

Freezer Drawer Adjustments
(611-2/611G-2,650-2/650G-2 Prior to Serial #2354455)

NOTE: After serial #2354455, the freezer drawer is
non-adjustable.

V

ertical Freezer Drawer Adjustment:

NOTE: Before attempting freezer drawer adjustment,
remove freezer drawer assembly. Pull drawer assem­bly out, then lift at front while holding upper freezer bas­ket in place. (See Figure 2-8)

1. Loosen two screws towards rear of each cabinet
drawer slide, and extract screw at slide front. (See
Figure 2-9)

2. Relocate front screw to desired position in drawer
slide insulator grommet (See Figure 2-9).

3. After adjustment, tighten all screws, reinstall drawer
assembly, then check door seal for proper gasket
seating.

NOTE: If freezer drawer assembly has too much play
from side-to-side, freezer drawer slide shims (part #
0232300 - front, part # 0232310 - rear) are available.

Freezer Drawer Front Pitch

Adjustment:

1. Remove two 3/4” white plastic plugs from each side
of plastic drawer liner. (See Figure 2-10)

2. With 3/8” socket, loosen bolts, then adjust drawer
front pitch accordingly. (See Figure 2-10).

3. After adjustment, tighten bolts and check door seal
for proper gasket seating.

Prior to Serial

#2354455

Prior to Serial

#2354455

Prior to Serial

#2354455

Built-In

Built-In

(600-

(600-

2

2

)

)

Series

Series

Installation Information

2-7

#3758407 - Revision B - August, 2006

Figure 2-11. Molding Removal

Stick tape to
center of
trim molding
and pull

Extract screws and
handle/trim from door

Slide door panel into
door frame

Figure 2-12. Handle/Trim Removal Figure 2-13. Door Panel Install

Door Panel Installation (All Framed and Overlay Models)

1. Using a piece of tape stuck to magnetic trim molding center, pull trim molding out at midpoint to expose
handle/trim mounting screws (See Figure 2-11).

2. Extract mounting screws and handle/trim from door (See Figure 2-12).

3. Slide door panel into door frame (See Figure 2-13), then reinstalling handle/trim and magnetic trim molding.

NOTE: On Models 685/F-2, 685/O-2, 695/F-2 & 695/O-2, the glass well bezel will also need to be removed from
door before sliding door panel into door frame. See Bezel removal instructions in section 7 of this manual.

NOTE: If door panel is less than 1/4” thick, a filler panel must be installed behind door panel.

D

o

r

o

D

o

r

o

D

o

o

r

P

a

n

e

l

Installation Information

Built-In

Built-In

(600-

(600-

2

2

)

)

Series

Series

2-8

#3758407 - Revision B - August, 2006

90° Door Stop Cam Installation (601R-2, 601RG-2, 601F-2)

Optional 90° door stop cam (part # DS90) and 105° door stop cam (part
# DS105) are available at no charge from Authorized Parts Distributors
and Product Distributors. To install:

a With door closed, extract bolts, stiffener plate and bushing from

lower cabinet hinge (See Figure 2-15).

b. Place door stop cam up over hinge pin, making sure stub on cam

fits into hole in lower cabinet hinge (See Figure 2-15).

c. Reinstall bushing, stiffener plate and bolts onto lower cabinet hinge

(See Figure 2-15).

Figure 2-15. 90° Stop Pin (611G-2, 650G-2)

90° Door Stop Pin Installation (611-2, 650-2)

Part #3550770, 90° Door Stop Pin, is supplied with
models 611 and 650. To install:

a Remove unit grille.

b. With door closed, insert door stop pin down into

threaded hole in top cabinet hinge and tighten (See
Figure 2-14). Then, reinstall unit grille.

Figure 2-14. 90° Stop Pin (611-2, 650-2)

Figure 2-15. 90° Stop Cam

Figure 2-14. 90° Stop Cam

90° Door Stop Pin Installation (611G-2, 650G-2)

Part #3550770, 90° Door Stop Pin, is supplied with
models 611G and 650G. To install:

a Open freezer drawer.

b. Insert door stop pin up into threaded hole in lower

cabinet hinge and tighten (See Figure 2-15).

90° Door Stop Cam Installation (632-2, 642-2, 661-2, 685-2, 695-2)

Optional 90° door stop cam (part # DS90) and 105° door stop cam (part
# DS105) are available at no charge from Authorized Parts Distributors
and Product Distributors. To install:

a With door closed, place door stop cam up over hinge pin, making

sure stub on cam fits into hole in lower cabinet hinge (See Figure 2-

14).

b. Secure door stop cam by pushing E-ring into groove at end of hinge

pin (See Figure 2-14).

PIN (3550770)

PIN (3550770)

HINGE PIN

90° DOOR
STOP CAM

E-RING

HINGE PIN

90° DOOR
STOP CAM

BUSHING

STIFFENER
PLATE

Built-In

Built-In

(600-

(600-

2

2

)

)

Series

Series

Electronic Control System

3-1

#3758407 - Revision B - August, 2006

SECTION 3

ELECTRONIC CONTROL

SYSTEM INFORMATION

Built-In

Built-In

(600-

(600-

2

2

)

)

Series

Series

Electronic Control System

3-2

#3758407 - Revision B - August, 2006

Term/Component

Definition / Description

Control Board …………………………..The printed-circuit board (PC Board) contains the microprocessor, relays and

electrical connections which control and monitor all functions and operations
of the unit.

Microprocessor ………………………... An electrical component on the control board which receives electrical signals

from other components, processes that information, then sends an electrical
signal to the relays on the board to open or close, and other electronic com­ponents in the unit to switch on or off.

Relay …………………………………… The electrical components on the control board which switch other compo-

nents in the unit ON and OFF when instructed to do so by the microproces­sor.

LCD (Liquid Crystal Display) ……...... That part of the control board seen at the control panel which displays com-

partment temperatures, service indicator, door ajar alarm bell & ice indicator.

Control Panel Assembly ………………The information input and read-out area of the electronic control system,

located at the top of the upper Compartment.

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.

Keys (Function Keys) ………………… The buttons on the Membrane switch used for input operations. (The keys

are: UNIT ON/OFF, ALARM ON/OFF, ICE ON/OFF, WARMER, COLDER)

Indicators .....…………………………... The words and numbers that are displayed at the control panel assembly.

(Example: Temperature displays, alarm bell indicator, SERVICE indicator, and
ICE system indicator)

Error Codes .…………………………... The code numbers accompanied by the letters “EC” that appear on the LCD

during diagnostic mode if the unit experienced specific problems related to
electrical signals supplied by electrical components.

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 display units of measure to be switched to read as either °F or °C.

Set-Point ……………………………….. The desired compartment temperature, established by pressing the COLDER

or WARMER keys.

High Offset (Cut-in)………………….....As the compartment air temperature cycles up and down, the high offset is

the maximum compartment temperature that the electronic control system will
allow before calling for cooling.

Low Offset (Cut-out)…………………... As the compartment air temperature cycles up and down, the low offset is the

minimum compartment air temperature that the electronic control system will
allow before interrupting cooling.

Thermistor (Temperature Sensor) ….. A resistor with which resistance changes as the temperature around it

changes. For electronic control system purposes, the microprocessor meas­ures this resistance and displays it as a temperature reading at the LCD.

ELECTRONIC CONTROL TERMINOLOGY & COMPONENT DESCRIPTIONS

All 600-2 Series units utilize an electronic control system. The electronic control system monitors, regulates and
controls a variety of functions. The electronic control system also displays temperature readings, ice maker system
operation, possible problems with the unit and door ajar alarm status. The table below defines some basic electron­ic control system terminology and describes some of the electronic control system components. An understanding
of the following information is needed in order to comprehend the input operations and functions of the electronic
control system.

Built-In

Built-In

(600-

(600-

2

2

)

)

Series

Series

Electronic Control System

3-3

#3758407 - Revision B - August, 2006

Figure 3-1. Basic 600-2 Series Electronic Control System Diagram

BASIC 600-2 SERIES ELECTRONIC CONTROL SYSTEM

This page contains a basic illustration of the 600-2 Series electronic control system (See Figure 3-1). Input opera­tions for the electronic control system 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 on the LCD.
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.

REFRIGERATOR

FREEZER

FREEZER

COMP

DOOR AJAR
ALARM BELL

FREEZER

EVAP FAN

R

RR

REFRIG

COMP

REFRIG

EVAP FAN

CONTROL BOARD

LCD

BOARD CONFIGURING
RESISTORS

CONDENSER

FAN

MICROPROCESSOR

MEMBRANE SWITCH

FREEZER

COLDER

WARMER

WARMERCOLDER

REFRIGERATOR

SWITCH

L1

115

VOLTS

60

CYCLES

ON/OFF

ON/OFF

UNIT

ICE

ON/OFF

LIGHT
TERMINATOR

NEUT

RRRR

FRE COMPARTMENT
THERMISTOR

FRE EVAP
THERMISTOR

DEFROST
HEATER

REF EVAP

THERMISTOR

REF COMPARTMENT

THERMISTOR

LIGHTS

DOOR AJAR
MONITOR LINE

WATER
SOLENOID

SOL. MONITOR LINE

ICEMAKER

DEFROST MONITOR LINE

DEFROST TERMINATOR

Built-In

Built-In

(600-

(600-

2

2

)

)

Series

Series

Electronic Control System

3-4

#3758407 - Revision B - August, 2006

PIN 1

PIN 1

PIN 1

PIN 1

0

J1

0

0

DISPLAY

J6

PIN 1

0

PIN 1

0

J7

0

J4

PIN 1

J3

J2

E2

E10

E6

E7

0

J5

Figure 3-2. Control Board Layout

Figure 3-3. Control Board Summary Table (632-2/642-2 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 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 & 3-3).

NOTE: All components on control board are non-replaceable. If problems with control board are identified, the
complete control board must be replaced.

BLUE/YELLOW

ORANGE/YELLOW

BLUE/WHITE

BLUE/WHITE

WHITE/BLUE

GRAY/WHITE

BLUE/BLACK

BLUE/BLACK

ORANGE/RED

ICE MAKER VALVE SENSOR

LOW VOLTAGE THERMISTOR CIRCUITS

J1-8

J1-7

J1-6

J1-4

J1-3

J1-2

J1-1

J1-5

J4-5

J4-1

J4-4

J4-3

J4-2

FRZ COMPARTMENT
FRZ COMPARTMENT

REF COMPARTMENT

DEF SENSOR

REF EVAP
REF COMPARTMENT

REF EVAP

FRZ EVAP

NOT USED(NO PIN)

REF DOOR LIGHT SENSE

FRZ DOOR LIGHT SENSE

FRZ EVAP

SENSES WATER VALVE ACTIVATION

SENSES WHEN DEF HEATER SHUTS OFF

SENSES REF CABINET
SENSES FRZ CABINET TEMP

SENSES FRZ CABINET TEMP

SENSES REF CABINET

SENSES REF EVAP TEMP

SENSES REF EVAP TEMP

SENSES IF REF DOOR OPEN

SENSES FRZ EVAP TEMP

SENSES IF FRZ DOOR OPEN

SENSES FRZ EVAP TEMP

BLUE/RED

ORANGE

BROWN

TAN

CONTROL BOARD SUMMARY

ICE MAKER ACC (FILL TUBE)

C FAN

DEF HTR

RCOMP

FCOMP

E FAN

CIRCUIT

J7-3
J7-5

J7-4

J7-7

J7-6
J7-8

J7-2

E6

J7-1

E7

E10

E2

ICE MAKER

NOT USED(NO PIN)

NOT USED

NOT USED

CONDENSER FAN

REF COMPRESSOR

POWER IN

FRZ COMPRESSOR

NEU

LITE

NEUTRAL

LIGHTS

L1

DEFROST HEATER

DESCRIPTION

120 VOLT CIRCUITS

POWERS FILL TUBE HEATER AND ACCESSORIES

POWERS CONDENSER FAN

POWERS REF COMPRESSOR

POWERS LIGHTS
POWERS ICE MAKER

POWERS FRZ COMPRESSOR
POWER INTO BOARD

NEUTRAL INTO BOARD

POWERS DEFROST CIRCUIT

FUNCTION

YELLOW

WHITE

PINK

WHITE/RED

PURPLE

GRAY

BLACK

COLOR

BLUE

I ACC

ICE

F DR

R DR

EVAP FRZ

REF
REF

EVAP REF

EVAP REF

EVAP FRZ

FRZ
FRZ

Built-In

Built-In

(600-

(600-

2

2

)

)

Series

Series

Electronic Control System

3-5

#3758407 - Revision B - August, 2006

600-2 SERIES CONTROL PANEL LAYOUT

NOTES:

• The illustration below is of a 632-2 control panel (See Figure 3-4).

• The control panels in models 601R-2, 601RG-2 and 601F-2 lack the obvious keys and indicators illustrated

below.

• The control panels in models 601RG-2, 611G-2 and 650G-2 include a LIGHTS ON/OFF key that is not shown in
the illustration below.

• The control panels in models 685-2 and 695-2 are mounted vertically and include a BULK ICE key.

Figure 3-4. 600-2 Series Control Panel Layout (Model 632-2 Control Panel Shown)

UNIT

ON/OFF

KEY

DOOR AJAR

ALARM ON/OFF

KEY

ICEMAKER

SYSTEM ON/OFF

KEY

REFRIGERATOR

SET-POINT

ADJUSTMENT

KEYS

FREEZER

SET-POINT

ADJUSTMENT

KEYS

LCD

Liquid

Crystal

Display

SERVICE

ICE

Jake Dog was here

OFF

FREEZER

WARMERCOLDER

WARMERCOLDER

REFRIGERATOR

ON/OFF

ON/OFF

ON/OFF

UNITICE

632

Built-In

Built-In

(600-

(600-

2

2

)

)

Series

Series

Electronic Control System

3-6

#3758407 - Revision B - August, 2006

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.

NOTE: The temperature range in a freezer compartment is -5°F (-21°C) to +5°F (-15°C). The temperature range in
a refrigerator compartment is +34°F (+1°C) to +45°F (+7°C).

NOTE: The initial stroke of the WARMER or COLDER key will change the previous set-point by one degree.

NOTE: The set-point will be displayed on the LCD for 10 seconds after the last key stroke. After the 10 second

delay, the compartment temperature will be displayed. As the compartment temperature changes, the temperature
displayed on the LCD will change by no more than one degree per minute.

Figure 3-6. Adjusting Set-Point - Press WARMER or COLDER Key In Multiple Key Strokes

WHEN IN “OFF” MODE, 115 VOLTS AC IS STILL PRESENT AT CONTROL BOARD!

Figure 3-5. Switching Unit ON or OFF - Press UNIT ON/OFF Key

BASIC ELECTRONIC CONTROL INPUT OPERATIONS

The following pages describe the basic input operations performed at the control panel. The subjects covered are:
switching unit ON and OFF; adjusting set-point (temperature adjustment); switching ice maker system ON and OFF;
enabling and disabling door ajar alarm feature, and in models 601RG-2, 611G-2 and 650G-2 only, accent lighting
system ON and OFF. Please note that though possible to display temperatures in Fahrenheit or Celsius, 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.

FREEZER

WARMERCOLDER

WARMERCOLDER

REFRIGERATOR

ON/OFF

ON/OFF

UNITICE

ON/OFF

FREEZER

WARMERCOLDER

WARMERCOLDER

REFRIGERATOR

ON/OFF

ON/OFF

UNITICE

ON/OFF

Built-In

Built-In

(600-

(600-

2

2

)

)

Series

Series

Electronic Control System

3-7

#3758407 - Revision B - August, 2006

Icemaker System ON/OFF

All 600-2 Series units with freezer compartments are equipped with an icemaker. When the unit first arrives in a
home, the icemaker system is off. By pressing and releasing the ICE ON/OFF key on the control panel, 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, indicating the ice­maker system is of

f.

NOTE: When in “Sabbath Mode,” the icemaker system is deactivated. Sabbath Mode will be explained later.

NOTE: To allow ice to freeze fully and reduce effects of low water pressure, power to the icemaker system is inter-

rupted for 45 minutes after each ice harvest. This can be bypassed for service purposes by switching the icemaker
system OFF, then back ON with the ICE ON/OFF key.

Figure 3-7. Switching Icemaker System ON or OFF - Press ICE ON/OFF Key

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.

Figure 3-8. Switching Door Ajar Alarm ON or OFF - Press ( )ON/OFF Key

Accent Lighting System ON/OFF (Models Produced with Glass Doors Only)

Models produced with glass doors are equipped with an accent lighting system. To energize the accent lighting sys­tem, press the LIGHTS ON/OFF key (See Figure 3-9). With the accent lighting system energized, three low intensi­ty light strips (15 Watts each), will stay illuminated when the door is closed. To disable the accent lights, press the
LIGHTS ON/OFF key again.

Figure 3-9. Model 601RG-2, 611G-2 and 650G-2 Accent Lighting System ON or OFF -

Press LIGHTS ON/OFF Key (Model 601RG-2 Control Panel Shown)

Ice system active if “ICE” is displayed

Door Ajar Alarm active if Bell is displayed

ICE

FREEZER

WARMERCOLDER

WARMERCOLDER

REFRIGERATOR

ON/OFF

ON/OFF

UNITICE

ON/OFF

FREEZER

WARMERCOLDER

WARMERCOLDER

REFRIGERATOR

ON/OFF

ON/OFF

UNITICE

ON/OFF

REFRIGERATOR

WARMERCOLDER

ON/OFF

ON/OFF

UNITLIGHTS

ON/OFF

Built-In

Built-In

(600-

(600-

2

2

)

)

Series

Series

Electronic Control System

3-8

#3758407 - Revision B - August, 2006

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 on a model 632-2 wiring schematic are used to show current flow for functions being explained.

Supply Power to the Lighting System

115 Volts AC are supplied to the lighting system through the control board when the unit is switched ON

by pressing

the UNIT ON/OFF key. With the doors open, the light switches allows power to the lights (See Figure 3-10).

NOTE: 115 Volt AC signal to the lights is monitored by the microprocessor to control the door ajar alarm feature.

NOTE: If in Sabbath Mode, th lighting system is disabled. Sabbath Mode will be covered later.

Figure 3-10. Signal Trace Schematic of Lighting System

115 VOLTS

BLACK WHITE

CONTROL

BOARD

J5

J7

E7E2 E6E10

J3

J4

J1

J2

60 CYCLES

J6

NEUTL1

M

M

M

M

YELLOW

ORANGE

REFRIGERATOR

LIGHT SWITCH

BROWN

FREEZER

LIGHT SWITCH

ORANGE

BROWN

LIGHT

TERMINATOR

LIGHT

TERMINATOR

M

ORANGE

ORANGE

REFRIGERATOR

LIGHTS

FREEZER

LIGHTS

FREEZER

LIGHT

Monitor, Regulate and Display Compartment Temperatures

Temperature signals from thermistors in refrigerator and freezer compartments are monitored, then displayed on the
LCD. When a compartment reaches high offset temperature (calling for cooling), the compressor and evaporator fan
are switched on. (See Figure 3-11). When a compartment reaches low offset temperature, the compressor and
evaporator fan are switched off. Though compartment air temperature fluctuates from off and on cycles, the “aver­age” temperature is displayed. (See Figure 3-12)

NOTE: Freezer compartment temperature range is -5°F (-21°C) to +5°F (-15°C). Refrigerator compartment temper­ature range is +34°F (+1°C) to +45°F (+7°C).

NOTE: If average compartment temperature changes, the display will change by one degree per minute.

NOTE: A refrigerator compressor will not energize after a refrigerator off-cycle defrost unless the evaporator ther-

mistor detects temperatures 38°F (3°C), or above.

NOTE: After a freezer evaporator defrost, the freezer compressor is not energized until after the 5 minute time
delay/dwell that follows all freez­er defrosts.

NOTE: If a refrigerator compart­ment thermistor is faulty, the
refrigerator compressor defaults
to 20 minutes on, 40 minutes off
cycling, EE appears at right in
LCD, SERVICE flashes and
Error Code 05 is logged.

NOTE: If a refrigerator evapora­tor thermistor is faulty, the refrig­erator compressor will not ener­gize until compartment air tem­perature exceeds high offset by
5°F (3°C). SERVICE flashes
and Error Code 06 is logged.

NOTE: If a freezer compart­ment thermistor is faulty, the
freezer compressor defaults to
20 minutes on, 20 minutes off
cycling, EE appears at left in
LCD, SERVICE flashes and
Error Code 07 is logged.

NOTE: If in Sabbath Mode, the
compartment thermistors still
control compressor operation,
except that when high offset is
reached, there is a random 15
to 25 second delay before com­pressors are energized.

Figure 3-11. Signal Trace (High Voltage Only) Regulating Temperatures

Built-In

Built-In

(600-

(600-

2

2

)

)

Series

Series

Electronic Control System

3-9

#3758407 - Revision B - August, 2006

Figure 3-12. Average Compartment Temperature Displayed on LCD

115 VOLTS

WHITE

GRAY

PURPLE

J6

60 CYCLES

BLACK WHITE

CONTROL

BOARD

J5

J7

E7E2 E6E10

J3

J4

J1

J2

NEUTL1

REFRIGERATOR

OVERLOAD

PROTECTOR

FREEZER

OVERLOAD

PROTECTOR

REFRIGERATOR

FAN SWITCH

REFRIGERATOR

COMPRESSOR

M

COMPRESSOR

M

FREEZER

FAN SWITCH

RED

FREEZER

RED

REFRIGERATOR

FAN MOTOR

M

REFRIGERATOR

COMPRESSOR

STARTING

RELAY

RUNNING

CAPACITOR

FREEZER

COMPRESSOR

STARTING

RELAY

FREEZER

FAN MOTOR

M

Signal from compartment

thermistors, calling for cooling in

both compartments.

M

FREEZER

WARMERCOLDER

WARMERCOLDER

REFRIGERATOR

ON/OFF

ON/OFF

UNITICE

ON/OFF

Built-In

Built-In

(600-

(600-

2

2

)

)

Series

Series

Electronic Control System

3-10

#3758407 - Revision B - August, 2006

Control Condenser Fan Operation

The microprocessor senses the 115 volt AC output 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 (See Figure 3-

13). If both compressors are off, the condenser fan will be off.

NOTE: In single compressor models (601R-2, 601RG-2, 601F-2), power to the condenser fan is supplied by the
compressor circuit. The white/red wire from the control board will not be present in those models.

NOTE: In models 611G-2 and 650G-2, the condenser fan relay also controls the door heater.

Figure 3-13. Signal Trace Schematic of Condenser Fan Operation

115 VOLTS

BLACK WHITE

CONTROL

BOARD

J5

J7

E7E2 E6E10

J3

J4

J1

J2

60 CYCLES

WHITE

GRAY

PURPLE

J6

WHITE\RED

NEUTL1

CONDENSER

FAN MOTOR

REFRIGERATOR

OVERLOAD

PROTECTOR

FREEZER

OVERLOAD

PROTECTOR

M

REFRIGERATOR

FAN SWITCH

REFRIGERATOR

COMPRESSOR

M

FREEZER

COMPRESSOR

M

FREEZER

FAN SWITCH

RED

RED

REFRIGERATOR

FAN MOTOR

M

REFRIGERATOR

COMPRESSOR

STARTING

RELAY

RUNNING

CAPACITOR

FREEZER

COMPRESSOR

STARTING

RELAY

FREEZER

FAN MOTOR

M

If either compressor is running,
the condenser fan is energized.