Rowe 650 Instruction Manual

i
900-65001 A
Part No. 90065001
First Edition
August 1996
Including Direct Access
Programming Instructions
650
Showcase Merchandiser
Field Service Manual
and
Parts Catalog
R

ii 900-65001 A

iii
900-65001 A
Part Number 900-65001 A
First Edition
First Printing August 1996
Printed in U.S.A.
650 Showcase Merchandiser
Field Service Manual
and Parts Catalog
This manual contains all of the information necessary to install, operate, troubleshoot
and perform basic maintenance on the 650 Showcase Merchandiser. It contains
instructions for using the new direct access software interface, repair and replacement
procedures for major components, and troubleshooting instructions. Section 6 is an
illustratedpartscatalogthatcanbeusedtoidentifypartsavailableforpurchasefromyour
Rowe distributor. Keep a copy of this manual with the vendor at all times for reference.
R
QUALITYLEADERSHIP
INTOTHE21STCENTURY

iv 900-65001 A
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v
900-65001 A
Table Of Contents
Specifications ............................................................. vi
How to Use this Manual ............................................ vii
Coin Mech. Chart ..................................................... viii
650 Features ............................................................... ix
SECTION 1
DESCRIPTION
Introduction....................................................... 1-1
Audit Data ......................................................... 1-1
Delivery Doors..................................................1-2
Service Door ..................................................... 1-3
Slide-Out Panel .................................................1-3
Universal Control Board ...................................1-4
E-Prom ..............................................................1-4
Shelves ..............................................................1-5
Zero Position .....................................................1-5
Loading Shelves................................................1-5
Connector Panel ................................................ 1-6
Main Power Switch Assembly .......................... 1-6
Drive Mechanism .............................................. 1-7
Refrigeration System.........................................1-8
Compressor Algorithm...................................... 1-8
Defrost Routine ................................................. 1-8
Backup Temperature Control............................1-9
Backup Refrigeration Circuit ............................1-9
Backup Thermostat ...........................................1-9
Point of Sale Messages ...................................1-10
Health Control................................................. 1-12
SECTION 2
INSTALLATION
Introduction....................................................... 2-1
Unpacking Instructions ..................................... 2-1
Set-Up Instructions ........................................... 2-1
Shelf Dividers ...................................................2-2
Selection and Price Labels ................................2-2
Coin Mech Loading .......................................... 2-4
Pre-Operation Check......................................... 2-5
SECTION 3
PROGRAMMING
Introduction....................................................... 3-1
Menu-Driven Interface......................................3-1
Direct Access Interface ..................................... 3-1
Service Menu ....................................................3-2
Service Mode Map ............................................ 3-3
Numeric Keypad ............................................... 3-4
Navigating the Menu Structure ......................... 3-4
Direct Access .................................................... 3-4
Quick Reference Guide.....................................3-5
Basic Program Setup ......................................... 3-5
Audits Menu...................................................... 3-6
Sales Sub-Menu ................................................3-8
Cash Sub-Menu................................................. 3-9
Vend Data Sub-Menu .....................................3-11
Coin Tubes Sub-Menu ....................................3-13
Options Menu.................................................. 3-15
Setup Menu ..................................................... 3-17
Bill Acceptor Sub-Menu .................................3-20
Coin Acceptor Sub-Menu ...............................3-21
Initialize Sub-Menu.........................................3-22
Price Menu ...................................................... 3-24
Flex Vend Sub-Menu ...................................... 3-27
Status Menu.....................................................3-33
Diagnostics Menu ........................................... 3-35
Machine History Sub-Menu............................3-37
Baffles/Shelves Sub-Menu.............................. 3-39
Refrigeration Sub-Menu ................................. 3-40
SECTION 4
MAINTENANCE
Introduction....................................................... 4-1
Cleaning ............................................................4-1
Shelf Removal and Disassembly.......................4-1
Drive Motor Assembly......................................4-2
Drive Assembly Alignment .............................. 4-2
Drive Chain Tension .........................................4-3
Replacing Baffle Motors ................................... 4-4
Removing the Baffle Assembly ........................4-5
Baffle Height Adjustment .................................4-6
Fluorescent Lamp Replacement........................ 4-8
Glass Replacement ............................................ 4-9
SECTION 5
TROUBLESHOOTING
Introduction .......................................................5-2
Preliminary Checklist ........................................ 5-2
Error Messages .................................................. 5-3
Out of Service....................................................5-3
Drive Motor Errors............................................5-3
Coin Mech Errors ..............................................5-3
Initial Power Up ................................................5-4
Power Up Initialization ..................................... 5-4
Coin Mech Socket .............................................5-5
Troubleshooting Charts
Error Messages .................................................. 5-6
Problem/Solution............................................... 5-8
Refrigeration....................................................5-11
Refrigeration Charge Troubleshooting .......5-14
Schematics
Refrigeration....................................................5-18
Power Supply Indicator Lights........................ 5-19
650 System Schematic .................................... 5-20
Universal Controller Board .............................5-22
Power Supply ..................................................5-26
Message Center Display Board .......................5-28
Baffle Board .................................................... 5-30
Optical Sensor .................................................5-32

vi 900-65001 A
SPECIFICATIONS:
650 Showcase Merchandiser
GENERAL
Depth .................................................................................. 30 in.
Width .................................................................................. 44 in.
Height ................................................................................. 72 in.
Net Weight ......................................................................... 800 lb.
Shipping Weight ................................................................. 825 lb.
Maximum Location Ambient Temperature ........................ 100oF @ 25% Relative Humidity
POWER REQUIREMENTS
Voltage ............................................................................... 120 VAC 220/240 VAC
Current ................................................................................ 15 AMPS 9 AMPS
Frequency ........................................................................... 60 Hz 50/60 Hz
VEND CAPACITY
Total Items.......................................................................... 96 MAX.
Number of Shelves ............................................................. 16
Delivery Doors (Baffles) .................................................... 6
Baffle Widths ..................................................................... 4 in.
Compartment Depth (Nominal).......................................... 7 in.
Number of Compartments per Shelf................................... 6maximum
COIN MECHANISMS
120V Models-12 or 15 Pin
MARS......................................................................... TRC - 6000
COINCO..................................................................... 9300L
24 V Models-15 Pin Only
MARS......................................................................... TRC - 6010 - XV
COINCO..................................................................... 9302LF
European
MARS......................................................................... MS1900 Executive
MS1700 Executive
MS1600 Executive
REFRIGERATION 120 V 220/240 V
Type 3/4 HP Air Cooled 3/4 HP Air Cooled
Charge R134a (21 oz.) R134a (510 Grams)
Operating Pressures @ 75oF@24
oC
High Side : 140 - 150 psig 965-1033 KPA
Low Side : 15 - 20 psig 103-138 KPA
Test Pressures: 300 psig NOTICE!
This system is charged
with R134a Refrigerant.
CAUTION !
Donotuse24voltCoinMech
with 12 pin plugs! This will
resultinpermanentdamage
to the Coin Mech and/or
vending machine.

vii
900-65001 A
HOW TO USE THIS MANUAL
This manual contains five sections. The front section contains a table of contents, power require-
ments and operating specifications. Described below is a brief outline of the numbered sections and
the information discussed there.
SECTION 1 - DESCRIPTION - Section 1 contains a general introduction to the 650 Showcase
Merchandiser. Itprovidesdescriptionsofthemajorcomponentsandfeaturesofthemachineandalisting
of point of sale messages. Before attempting to unpack or install this vendor, read and familiarize
yourself with this section and Section 2 - Installation.
SECTION 2 - INSTALLATION - Section 2 contains unpacking and set-up instructions. This section
describeshowtoinitializethemachine,loadthecoinmechanismandperformapre-operationcheck. Use
this section to install and check out the vendor.
SECTION3-PROGRAMOPERATION-Section3containsdetailedprogramming informationand
instructions necessary to perform all of the service mode operations. This section will explain how to
enable the functions available on this machine. It provides a detailed explanation of features and
operations.
SECTION4-MAINTENANCE-Section4containsinstructionsforcleaning,adjusting,repairingand
replacingcomponentsonthe650Merchandiser. Adjustment,repairandreplacementproceduresshould
beperformedonlyasrequired. IsolateequipmenttroubleusingtheinformationanddiagramsinSection
5 before attempting to make adjustments or replace parts.
SECTION5-TROUBLESHOOTING-Section5containstroubleshootingprocedures,troubleshoot-
ingcharts,schematics,andwiringdiagramsforthevendor,UCB,andRefrigerationUnit.Usethissection
inconjunctionwiththeinformationinSection4-Maintenance,toisolateandrepairvendormalfunctions.
SECTION 6 - PARTS CATALOG- Section 6 contains a view of each assembly with part and section
called out. Part numbers under a four digit assembly number are indented to the right if they are shipped
as a group when ordering the assembly number. If they are not indented, each part must be ordered
separately.

viii 900-65001 A
COIN MECH. CHART
1= Use with 408-6027 Kit 2= Remove R35 from MC5920 AH when using CBA - 2 B.A. (Also Needs 425-1856 harness)
3= Needs four price kit 4= B.A. Compatible
WO\BA
ROWE VENDING MACHINE COIN MECH USAGE
Coin Acceptors
406 425 505 548/
648 550/ 650
5900
6 PUMP 8 PUMP
Coinco
9300S XX X
9340S XXXX XX
9360S XXXX XX
XX X
XX X
F300E-9210
3333 XX
F300-9400
XX X
S300-9410
XXXX XX
9300L X XXXXXX
9302LF XXXX
MARS
Cashflow XXXX
TRC6010XV
XXXX
MC5000 X XXXXXX
TRC6000 X XXXXXX
TRC6200 XXXX XX
TRC6200H 14 4 4
TRC6800 XXXX XX
TRC6800H
44 4
MC5802 XXXX XX
MC5807 XXXX XX
MC5920 X2X2 X2
MC5920H
MS1600 XXXXX
MS1700 XXXXX
MS1900 XXXXX
NRI
G-26.4400
XXXX
Azkoyen
AN-200 XX
Single Price
$12.75 Max
120 VAC
Single Price
$12.75 Max
120 VAC
Single Price
$12.75 Max
120 VAC
Single Price
$3.15 Max
120 VAC
Single Price
$1.15 Max
120 VAC
Four Price
$3.15 Max
120 VAC
Four Price
$3.15 Max
120 VAC
Single Price
$3.15 Max
120 VAC
Micromech
110 VPDC
Micromech
24 VPDC
15 Pin Con.
Micromech
24 VPDC
15 Pin Con.
Micromech
117 VPDC
$12.75 Max
Micromech
117 VPDC
$12.70 Max
120V
Single Price
$6.35 Max
120V
Single Price
$6.35 Max
120V
Single Price
$10.00 Max
120V
Single Price
$10.00 Max
Single Price
115 VAC
Single Price
115 VAC
Four Price
115 VAC
$6.35 Max
European
24 VAC 50 Hz
European
Tropicalized
24 VAC 50 Hz
European
24 VAC 50 Hz
National
Rejectors
Inc.
European
24 VAC 50 Hz
Four Price
115 VAC
$6.35 Max
S75-9400B-
977
S75-9800B-
907
448
E2
W\BA WO\BA W\BA W.A.D. WO\BA W\BA W.A.D.
X

ix
900-65001 A
650 Features
FLEXIBLE PRICING
The 650 offers flexible pricing, up to $99.95, settable
inincrements of 5¢(U.S. and Canadian).Prices areset
directly using the numeric keypad.
SLIDE-OUT SERVICE PANEL
Theslide-outservicepanelallowstheservicepersonto
access all of the 650’s electronics without opening the
main door.
AUDIT INFORMATION
Keeps track of:
• Sales
• Number of free vends
• Value of free vends
• Sales by shift
• Number of vends
• Cash by Bills & Coins
The 650 also provides accurate inventory of money in
the Cash Box, Coin Mech, and Bill Stacker. Sales are
recorded as resettable and nonresettable sales data.
MULTIVIEW
Theconveyorisrotated3sectionsevery3minutesnon-
stop or at programmable start and stop times.
COIN MECHANISM
Can use either 110VDC (12 or 15 pin) or 24VDC
(15 pin) Coin mechanisms
NOTE: See Coin Mech Chart page viii.
OTHER FEATURES
• Debit Card Reader Capability
• Hard Copy Printout Capability
MESSAGE CENTER
The 650's message center has a 20 character vacuum
fluorescentdisplaythatcanscrollupto255characters.
Itcanbeprogrammedtodisplayacustommessage, the
time and date, or temperature.
DIRECT ACCESS PROGRAMMING
The 650 features direct access programming, which
allows the operator to program the merchandiser
withoutscrollingthroughlayers ofmenusandoptions.
The direct access system assigns a code to each
programming option, which the operator can enter
directly with the numeric keypad. For operators who
do not want to memorize codes, direction keys can be
used to navigate the menu structure.
REAL TIME CLOCK
Keeps track of start and stop times for options and
records fault times.
PROGRAMMABLE COIN LOADING
Coins can be loaded through the top or side of the coin
mech.
SHELVES
The easily removable shelves can be configured to
holdbetweenoneandsixselections.Theconfiguration
can be changed quickly without tools.
CONVEYOR
The shelf conveyor holds sixteen shelves. It can be
rotated up or down by the customer.
SHELF MOTOR LOAD SENSING
Theshelfmotorandtheconveyordrivemechanismare
protectedagainstoverloaddamagebyelectronicmoni-
toring.

x900-65001 A
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1-1
Description - 1
900-65001 A
INTRODUCTION
TheRowe650Showcase Merchandisercanbeusedtovendrefrigeratedornon-refrigeratedproducts.Theunique
vertical shelf movement and versatile shelf configuration make this vendor ideal for many locations.
Productisvended from16shelves which rotateverticallyinsidethevendor.Theshelves can besetupinavariety
of configurations, with a maximum shelf capacity of 6 items.
Theshelvesarerotatedby pressing upordownontherocker button locatedonthedisplaypanel.When the button
is released the conveyor stops rotating.
A selection is made by pressing a 3-digit combination that corresponds to the desired product.
Once a selection choice has been made with the keypad, the conveyor will automatically move the selected shelf
intothevendposition.Theinnerbaffledoorwillopenandthecustomercanopentheouterdeliverydoortoremove
their purchase. A vend can be canceled at any time prior to the opening of the inner baffle door by pressing the
reset button. As a safety precaution the inner delivery door will not close if the outer delivery door is open.
Audit Data
The 650 provides detailed audit information in a printed or displayed format. Audit data includes vital diagnostic
information, and sales information such as total cash collected and sales totals. Audit information is accessed by
entering the appropriate code in the service menu (Refer to Section 3).
Section 1:
DESCRIPTION
Figure 1-1. 650 Showcase Merchandiser

900-65001 A1-2
650 Showcase Merchandiser
Baffles
Open for
Purchase
Outer
Delivery
Door
in Raised
Position
Outer
Delivery
Door
Baffle
Doors
Delivery Doors
The650incorporatesadualdelivery door system.The outerdeliverydoorspansthewidthofthe delivery section.
Each of the six inner delivery doors, called baffles, accesses one 4" shelf section. When an item is selected for
purchase the baffle corresponding to the purchased item is opened. All of the other baffles remain closed. In the
case of a purchase from a compartment that has been expanded to include more than one 4" shelf section, each
of the baffles for that selection will open. Refer to Figure 1-2 for a pictorial explanation.
The baffles will remain open for one minute or until the conveyor is advanced, another selection is made, or
additional credit is introduced. This prevents the possibility of the customer losing his purchase if the outer
delivery door is inadvertently shut.
When the shelves are rotated or another selection is initiated, the baffles are closed.
Figure 1-2. Baffle Doors

1-3
Description - 1
900-65001 A
Service Door
The service door provides access to the slide-out service panel, main door latches, and the conveyor motor
assembly. It also houses the message center, coin mech, bill acceptor, and cash box.
When the service door is unlatched, the machine is automatically placed in the service mode. In the service mode
the operator can access all of the programming functions using the keypad on the message center. Service mode
functions are accessed directly by entering codes with the number keys or indirectly by using the <LINE UP>
<LINE DOWN> <MOVE LEFT> and <MOVE RIGHT> commands.
Slide-Out Panel
Theslide-outservicepanel,locatedbehindtheservicedoor,containsallofthemachine’scontrolsystems.Located
on the slide-out panel are the universal control board, the power supply, and a junction box containing a
convenience plug (120V models only) and a printer port. The main power transformer and the ballast assembly
are also located on the slide-out panel.
Theslide-outpanel allowstheoperator to haveaccessto allofthe machine’s controlsystemswithout openingthe
main door.
Figure 1-3. Slide-Out Panel
UCB
Power
Supply
Main Power
Transformer
Assembly
Ballast
Assembly
Junction Box
NOTICE:
UNIVERSAL
CONTROL
BOARD
ASSY P/N AND CHIP P/N
MADE IN U.S.A.
CHIP
1 - 2 MIC RO
J18
ON
DIP SW
OFF
1 P5 16 1 P3 12 P14 P9 1 P14 15
1 P8 14 1 P10 8 1 P11 9
Convenience Outlet
(120V Models Only)
200 Watts Max

900-65001 A1-4
650 Showcase Merchandiser
Universal Control Board
The Rowe Universal Control Board is the “brain” of the 650 General Merchandiser. The UCB controls all of the
650’s peripheral devices, such as the coin mech, bill acceptor and refrigeration unit, as well as all of the vending
functions and special features. The Universal Control Board also collects and stores vital machine information,
suchaserrormessagesandauditdata.TheUCBmaintainscoincountsandcointubelevelsforthecoinmech.The
refrigeration system is completely controlled by the UCB. The UCB monitors the temperature of the food
compartment, and applies the compressor algorithm to maintain the appropriate temperature parameters.
EPROM
The UCB runs a computer program stored on the EPROM. The EPROM is removable and can be updated as new
software revisions become available. A label on the top of the EPROM, visible through the square hole above the
word‘CHIP’onthecover, indicatestherevisionlevelofthesoftwareloadedontoit.ServicetotheUCB,including
the replacement of the EPROM, should be performed by qualified personnel only.
The UCB is located on the slide-out service panel assembly and can be accessed without opening the main door.
UCB functions are accessed through the keypad on the message center. Refer to Section 3 for detailed
programming instructions.
Figure 1-4. UCB and EPROM
Eprom
NOTICE: DIFFERENT MACHINES
REQUIRE DIFFERENT CHIPS
UNIVERSAL
CONTROL
BOARD
ASSY P/N AND CHIP P/N
MADE IN U.S.A.
CHIP
1 - 2 MICRO
2 - 3 EXEC
J18
ON
DIP SW
OFF
Test
1 P5 16 1 P3 12 P14 P9 1 P14 15
1 P8 14 1 P10 8 1 P11 9
Location of Pin #1 Connection Label
1 P2 10 1 P4 1 P8 1 P12 1 P13 7
1P791 P15 121 P16 6

1-5
Description - 1
900-65001 A
Shelves
The 650 vends product from a series of sixteen 24" horizontal shelves which can be rotated up or down by the
customer. Each shelf is divided into six 4" sections. The shelves can be easily configured, by removing or adding
shelf dividers, to house any combination of 4" compartments. A divider lockbar spans the top of the shelf, and
attaches to both sides. The lockbar holds the dividers firmly in position, deterring theft of product from
unpurchased compartments.
Zero Position
Attached to the back of one of the shelves is a magnet assembly. It is used to activate the zero position sensor.
When activated the UCB uses this as a starting point for the shelf positions. This is used to keep track of the
programmed prices and configurations on each of the 16 shelves. If the zero position shelf is moved to a new
location, relative to the other shelves, the prices and shelf configurations must be reprogrammed. If the
machine goes out of service, the shelves must be rotated until the zero position is located before the vendor can
be placed back into service.
Loading Shelves
Product must be loaded so that it does not extend beyond the top or front edges of the shelf. Product may shift as
the conveyor rotates; ensure that product is loaded properly so that it will not shift beyond the boundaries of the
shelf. If the product extends beyond the boundaries of the shelf, the product will cause the conveyor to bind up,
resultinginmachineshutdownand possible damage totheshelves,shelfcarriers,drivechain,andlossofproduct.
Load heavier products on the left side of the shelves. The components on the left side of the shelves are designed
to handle the greater stress produced by heavier products.
Load all shelves with approximately the same weight load.
Do NOT place non-packaged food directly onto the product shelf.
Figure 1-5. Shelves
$1.75602$1.75102 $1.75202 $1.75302 $1.75402 $1.75502
Shelf Dividers
The dividers divide the shelf into vending
compartments. The size of the compartments
can be changed by repositioning the dividers. To
remove a divider, remove the divider lockbar, lift
the back of the divider, rotate it forward about 30
degrees, and remove it.
Divider Retainer Nodes
The nodes are part of the divider and hold it
securely to the shelf.
Price Display Holders
Shelf Release Mechanism
Located on both ends of the shelf, this
mechanism allows the shelf to be quickly
removed from the machine.
To remove the shelf, press the release levers
down and pull the shelf forward.
Divider Lockbar
The divider lockbar is a security device that
prevents illicit access to unpurchased
compartments by limiting the vertical and
lateral movement of the shelf dividers.

900-65001 A1-6
650 Showcase Merchandiser
MAIN POWER
MAIN POWER
CIRCUIT BREAKER
VEND POWER
CIRCUIT BREAKER
REFRIG. INTERLOCK
Main Power
ON/OFF Switch
Circuit Breakers
Refrigeration Interlock Switch
When this button is released (if the
door is open or ajar), the
refrigerator unit shuts off.
Connector Panel
Theconnectorpanelhousesthemaindoorswitch,aswellastheharnessquick-disconnectsforthemaindoor.This
allows the main door to be quickly removed if necessary.
Main Power Switch Assembly
The main power switch assembly (Figure 1-6) is located at the lower left side of the cabinet interior. It houses
the main power switch, the refrigeration power circuit breaker, the vend power circuit breaker and the
refrigeration interlock switch. The refrigeration interlock switch shuts down the refrigeration unit when the main
door is open or ajar.
Figure 1-6. Main Power Switch Assembly

1-7
Description - 1
900-65001 A
Alignment Gears
Keep the shelves
horizontal.
Drive Mechanism
The shelves are mounted on individual carrier assemblies, which travel on a fixed guide track. The carriers are
connected to drive chains, which are turned by drive sprockets. The drive sprockets are powered by a 24V
motor located in the service compartment. The carrier assemblies on the left side of the cabinet use alignment
gears to keep the shelves horizontal.
Drive Sprocket
Idler Sprocket
Carrier Tracks
Carrier Assembly
The trays attach to
these assemblies.
Carrier Retainer
Drive Chain
CAUTION
Do NOT advance the shelf assemblies without ALL of the carrier retainers installed. Doing so will
causethecarrierassembliestobecomemisalignedandmaycausedamage tothedrivemechanism.
Figure 1-7. Drive Mechanism
Drive Shaft

900-65001 A1-8
650 Showcase Merchandiser
Evaporator
Backup
Temperature
Control Knob
Refrigeration
Control
Compartment
Compressor
Condenser
Backup
Relay
Compressor
Relay
Defrost
Relay
Plug
Refrigeration System
Theself-containedrefrigerationunitisdesignedtoslideinandoutofthevendorasacompleteassembly.Anormal
3pin AC power cord supplies power to the compressor,the evaporatorblower, andthe condenserfan. Duringthe
normal operating cycle and also during the defrost cycle, the evaporator blower runs continuously, regardless of
the temperature inside of the refrigerated compartment. The condenser fan runs only when the compressor is
running.Thecompressorandcondenserfanarecontrolledtogetherbyonerelay.Thedefrostheatersarecontrolled
by a separate relay. Both relays are located below the backup relay in the refrigeration control compartment.
During normal operation, the temperature of the food compartment is regulated by the Universal Control Board.
The temperature will be maintained between 34o-41oF, according to the compressor algorithm described below.
Other temperature ranges are available and selected from a service menu.
When the main door is opened, the compressor, condenser fan and evaporator blower are turned OFF by the
interlock switch. When the main door is closed, there is a two minute delay before power is applied to the
compressor and the condenser fan. The evaporator blower will start immediately after the main door is closed. If
power is interrupted for any reason, the delay described above will occur before the compressor and condenser
fan are started. This delay helps prolong the life of the compressor by eliminating rapid on/off cycling and hard
starts.
NOTE:
The compressor control cycling runs independently of the health control processing.
If the machine goes out of service, the compressor will continue to operate.
Compressor Algorithm
The compressor will turn ON two minutes after closing the main door or initiating the start-up sequence. It will
remain ON until the temperature inside the food compartment is below 35oF. Once the temperature inside the
food compartment falls below 35oF, the compressor will shut off and remain off, until the temperature inside the
food compartment reaches 41oF (provided that the selected temperature range is 35oF to 41oF).
Defrost Routine
Every two hours the refrigeration unit enters a defrost routine. The compressor and condenser fan will shut off
and the heaters will come on. The heaters will remain on for 5 minutes, or until the compartment temperature
reaches 41oF. Once the temperature reaches 41oF or the 5 minute period expires, the compressor and condenser
fan will turn on. The evaporator blower runs during the defrost cycle.
CAUTION!
This unit contains R-134A
refrigerant. This unit is not
compatible with any other type of
refrigerant. Use of any other type of
refrigerant in this unit will damage
the refrigeration unit, and may
result in personal injury. Use of any
refrigerant other than R-134A will
void the unit’s warranty.
This unit must be serviced only by
certified refrigeration technicians.
Unauthorized service or repair will
void the warranty on this unit.
Figure 1-8. Refrigeration System

1-9
Description - 1
900-65001 A
REFRIG PLUG
WHBKGN
BK GRY BN
YL
RD
BK BK
BN WH
BN WH
WH
COND FAN
COMP
EVAP BLOWER
EVAP HEATER #1
WH
BK
EVAP HEATER #2
WH
BK
WHBK
PAN HEATER
OR
RD
DEFROST
OR WH/OR
REFRIGBACKUP
YL WH/ORRD WH/RD
RD
WH/RD
OR
WH/OR
YL
NOTE - All Relays are
shown de-energized
24 VDC24 VDC 24 VDC
K3K2K1
K1
K1T1
T2
YL
K3
Backup Temperature Control
The backup temperature control knob should be set at ‘4’. Under normal circumstances, the temperature of the
vendor is controlled by the UCB, and is kept within the parameters described above.
Backup Refrigeration Circuit
Duringnormaloperation, thebackuprelay, located intherefrigeration control compartment,isheld energizedby
electronicson thepower supplyboard andcontrolled by signalsfrom theUniversal ControlBoard. Undercertain
circumstances, i.e. power failure to the UCB, the backup relay will de-energize. When this happens, the backup
temperature control is connected to the refrigeration circuit and the refrigeration unit is kept in operation.
Figure 1-9. Refrigeration Schematic
Backup Thermostat
If the temperature sensor is disconnected or the temperature is actually above 80oF, the vendor will switch to the
backup refrigeration circuit and the backup thermostat. The vendor will remain in backup operation until the
temperaturesensorisreconnectedorthetemperatureinthecabinetisbelow80oF.Thedefrostcyclewillnotoccur
when the unit is in the backup mode.

900-65001 A1-10
650 Showcase Merchandiser
Point of Sale Messages
MESSAGES PRIOR TO CREDIT
SORRY-OUT OF SERVICE -SORRY-OUT OF SERVICE -
SORRY-OUT OF SERVICE -SORRY-OUT OF SERVICE -
SORRY-OUT OF SERVICE - This message will appear whenever there is an error condition logged
bythesoftware.ThedisplaylampswillbeOFFwhenoneormoreerror
conditions exist.
INSERT MONEY -INSERT MONEY -
INSERT MONEY -INSERT MONEY -
INSERT MONEY -Thismessageappearswhenabillvalidatorisconfiguredandthereissufficientchange
in the coin mechanism.
EXACT CHANGE PLEASEEXACT CHANGE PLEASE
EXACT CHANGE PLEASEEXACT CHANGE PLEASE
EXACT CHANGE PLEASE -This message appears whenever there is insufficient change in the coin
mechanism. Users can buy with an over credit and the machine will try
to make the correct change.
COINS ONLY PLEASECOINS ONLY PLEASE
COINS ONLY PLEASECOINS ONLY PLEASE
COINS ONLY PLEASE - This message appears when a bill validator is not configured and there is
sufficient change, or when a bill validator is configured and there are less
than 4 quarters in the payout tube.
MAKE FREE SELECTIONMAKE FREE SELECTION
MAKE FREE SELECTIONMAKE FREE SELECTION
MAKE FREE SELECTION - Machine is in Free Vend Mode. No money is required.
HEALTH DELAY 30 MINSHEALTH DELAY 30 MINS
HEALTH DELAY 30 MINSHEALTH DELAY 30 MINS
HEALTH DELAY 30 MINS - Machine is in Cool Down mode. Appears when Hot Key RESET + 2
is pressed.
HEALTH CONTROL ONHEALTH CONTROL ON
HEALTH CONTROL ONHEALTH CONTROL ON
HEALTH CONTROL ON -30-minute Health Delay expired. Refrigerated compartment temperature is
in normal range. Appears when Hot Key RESET + 2 is pressed.
ONE MOMENT PLEASEONE MOMENT PLEASE
ONE MOMENT PLEASEONE MOMENT PLEASE
ONE MOMENT PLEASE - Machine is locating zero position.
11.59PM SUN 12/31/91 -11.59PM SUN 12/31/91 -
11.59PM SUN 12/31/91 -11.59PM SUN 12/31/91 -
11.59PM SUN 12/31/91 - This message appears when Hot Key RESET + 0 is pressed.
TEMPERATURE 36 F -TEMPERATURE 36 F -
TEMPERATURE 36 F -TEMPERATURE 36 F -
TEMPERATURE 36 F - Temperature in degrees Fahrenheit. Appears when Hot Key RESET + 1
is pressed.
TEMPERATURE = 2 C -TEMPERATURE = 2 C -
TEMPERATURE = 2 C -TEMPERATURE = 2 C -
TEMPERATURE = 2 C - Temperature in degrees Celsius. Appears when Hot Key RESET + 3 is pressed.
MAIN DOOR IS OPENMAIN DOOR IS OPEN
MAIN DOOR IS OPENMAIN DOOR IS OPEN
MAIN DOOR IS OPEN - Attempt was made to advance the conveyor with the keypad when the main
door is open and the service door switch is closed.
Machine ID = xxxxxx -Machine ID = xxxxxx -
Machine ID = xxxxxx -Machine ID = xxxxxx -
Machine ID = xxxxxx - Displays Machine ID number when Hot Key RESET + 4 is pressed.
Rowe 650 V X.X -Rowe 650 V X.X -
Rowe 650 V X.X -Rowe 650 V X.X -
Rowe 650 V X.X - Displays software version number when Hot Key RESET + 5 is pressed.