WHITE
PURPLE
BLACK
RED
YELLOW
ORANGE
ORANGE
BLUE/RED
WHITE
YELLOW
ORANGE/RED
RED
BLUE/BLACK
12VDC POWER SUPPLY FOR DISPLAY BOARD
GROUND FOR DISPLAY BOARD POWER SUPPLY
SERIAL DATE TRANSMIT
SERIAL DATA RECEIVE
SENSES EVAPORATOR TEMPERATURE
SENSES IF LOWER DOOR OPEN
POWERS COMPRESSOR AND CONDENSER FAN
SENSES EVAPORATOR TEMPERATURE
POWERS EVAPORATOR FAN
POWER INTO BOARD
NEUTRAL INTO BOARD
POWERS LIGHTS
SENSES REFER CABINET TEMPERATURE
NOT USED
NOT USED
REF DOOR LIGHT SENSE
NOT USED
NOT USED
NEUTRAL
NOT USED
EVAPORATOR FAN
NOT USED
COMPRESSOR
POWER IN
LIGHTS
NOT USED
NOT USED
NOT USED
NOT USED
REFRIGERATOR
COMPARTMENT
DISPLAY WIRING
EVAPORATOR
DISPLAY WIRING
DISPLAY WIRING
DISPLAY WIRING
EVAPORATOR
NOT USED
NOT USED
NOT USED
EVAP
EVAP
DISPLAY
DISPLAY
DISPLAY
DISPLAY
LIGHTS
FAN 1
COMPRESSOR
L1
L2
CAB
N
C
O
DEFROST
ICE
FAN 1
R DOOR
DEF
ICE
LOW VOLTAGE THERMISTOR CIRCUITS
J5-5,6
J3-3
P3
P4
P2
P1
J3-1
J3-2
J3-6
J3-5
J3-4
J2-1
J3-7
J5-1,2
J2-4
J2-3
J2-2
J4-5
J5-3,4
J5-7
J6-2
J6-1
J5-8
J4-2
J4-1
J6-3
J4-4
J4-3
J4-6
120 VOLT CIRCUITS
CIRCUITTERMINAL
MAIN CONTROL BOARD SUMMARY
DESCRIPTION FUNCTION COLOR
-This wiring information is provided for use by qualified
service personnel only.
-Disconnect appliance from electrical supply before beginning service.
-Be sure all grounding devices are connected when service is complete.
-Failure to observe the above warnings may result in
severe electrical shock.
PIN 1
PIN 1
PIN 1
PIN 1
PIN 1
J5
J4
J6
J3
P2
P1
J2
P4
P3
YELLOW
ORANGE
WHITE
BLACK
1 PURPLE
2 WHITE
3 GRN/YL STP
2 BROWN
1 BLUE
2
1
GREEN
BLACK
BLACK
PLAIN
2 WHITE
GREEN
RIBBED
1 BLACK
WHITE
WHITE
L1
L2
PURPLE
J4
J5
J6
J2
J3
PURPLE
WHITE
GREEN W/YELLOW STRIPE
2
3
2
1
WHITE
11
6
P1
P2
P4
P3
1
1
1
1
1
ORANGE
RED
ORANGE
3
YELLOW
4
BLUE/BLACK STRIPE
BLUE/RED STRIPE
ORNG/RED STRIPE
5
14
1
10
9
18
17
ORANGE
8
PIN 1
3
4
RED
1
J3
J2
MAIN
BOARD
WHITE
BLACK
PURPLE
YELLOW
RED
ORANGE
WHITE
YELLOW
ORANGE/BLACK STRIPE
RED
BLUE/BLACK STRIPE
YELLOW
6
ORANGE
WHITE
RED
BLACK
YELLOW
ORANGE
YELLOW
PIN 1
WHITE
2
JACKET CABLE
(MARKED WITH BLUE STRIPE)
SENSOR
3
(REF CAB)
1
ORANGE
RED
PINK
BLACK
(BEVERAGE CENTER ONLY)
UPPER REFRIGERATOR
LIGHT
WHITE
REF FAN MOTOR
RED
WHITE
WHITE
ORANGE
RED
SENSOR (EVAP)
PINK
SWITCH LIGHT
WHITE
CORD
SUPPLY
JACKET CABLE
(MARKED WITH
2 RED STRIPES)
(BEVERAGE CENTER ONLY)
MFG TEST
TERMINALS
COMPRESSOR
POWER
CONDENSER FAN MOTOR
WIRING DIAGRAM
MODEL UC-24B, UC-24R, UC-24RO
MAIN CONTROL BOARD DETAIL
SWITCH LIGHT
P/N 7002555 REV A
LIGHT TUBE
DISPLAY BOARD
PURPLE
Wire Diagrams & Schematics
Under Counter (UC-24) Series
10-4
#7003933 - Revision B - November, 2007
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