Service Manual
Table Of Contents
- Important Safety Information
- I. Construction and Water Refrigeration Circuit Diagrams
- II. Sequence of Operation and Service Diagnosis
- III. Controls and Adjustments
- A. Control Board Layout
- B. LED Lights and Audible Alarm Safeties
- C. Settings and Adjustments
- 1. Default Dip Switch Settings
- 2. Bin Control Shutdown Delay (Infrared Sensor) (S1 dip switch 1, 2, 3)
- 3. Drain Frequency Control (S1 dip switch 4)
- 4. Continuous Dispensing Timer (S1 dip switch 5 & 6)
- 5. Bin Control Selector (S1 dip switch 7)
- 7. Bin Control Shutdown Delay (S1 dip switch 9) (F-C CB Only)
- 8. Factory Use (S1 Dip Switch 10)
- D. Switches
- IV. Refrigeration Circuit and Component Service Information
- V. Maintenance
- VI. Preparing the Appliance for Periods of Non-Use
- VII. Disposal
- VIII. Technical Information
54
B. Wiring Diagrams
1. DCM-270BAH(-OS):
Serial Number: C10508L to D00829A (except C17634M and C17641M)
WIRE COLOR CODE
BK -BLACK
BR -BROWN
BU -BLUE
DBU -DARK BLUE
GR -GREEN
GY -GRAY
LBU -LIGHT BLUE
O -ORANGE
P -PINK
R -RED
V -VIOLET
W -WHITE
Y -YELLOW
W/BK -WHITE BLACK
W/BR -WHITE BROWN
W/BU -WHITE BLUE
W/O -WHITE ORANGE
W/R -WHITE RED
(DBU)
115/60/1
N
W/O
W/O
BK
CAP.
10MFD
GND
(Y)
FUSE (1A)
EXTERNAL
PROTECTOR
O
L
W/R
R
LBU
R
CONTROL
TRANSFORMER
Y
W/BK
W/BK
FLOAT SWITCH
(BU)
(R)
(BK)
INLET
WATER
VALVE
DRAIN
VALVE
BR
W
BR
R
LBU
UPPER
LOWER
120VAC
24VAC
W/O
W/O
LBU
LBU
W/R
W/R
W/R
W/R
BR
BK
R
W
W
BU
R
BK
W/O
W/O
COMPRESSOR
CONTROL RELAY
1
3
5
7
2
4
6
8
2
3
POWER
SWITCH
START CAP.
145-174MFD
START
RELAY
1
2
5
W
R
BK
BK
HI-PRESS.
SWITCH
FAN MOTOR
(BK)
Y
W
W/R
W/O
W/O
W
W
W
(R)
BK
BR
(BK)
Y
GEAR MOTOR
INTERNAL
PROTECTOR
(BK)
W
W
W
(W)
GR
(BR)
LBU
W/R
BR
BK
DISPENSE
SOLENOID
GY
GY
BIN
CONTROL
W/R
W/R
ICE
OFF
DRAIN
OFF
ICE
DRAIN
VALVE
WATER
DISPENSE
W
DBU
(GY)
(GY)
LBU
LBU
LBU
LBU
DBU
O
W/DBU
W/DBU
O
W/O
GY
4
W
GY
WATER
DISPENSE
SENSOR
ICE
DISPENSE
SENSOR
(BK)
(R)
(W)
(R)
(W)
(BK)
R
W/BK
P
W/R
1
3
5
7
2
4
6
8
W
DBU
DISPENSE RELAY
BR
BK
BK
W/BK
W/BK
W
(NO)
(COM)
(NO)
P
P
ICE
SWITCH
WATER
SWITCH
DCM-270BAH
DCM-270BAH-OS
GND
CONTROL
SWITCH
BR
BR
BR
BK
BR
R
(BU)
W/DBU
BK
O
W/R
W/DBU
W/DBU
W/DBU
DBU
BR
BK
DBU
LBU
BR
LBU
BR
BR
BR
BK
BK
BK
DBU
W/O
W/O
W
W
W
W
W
BR
LBU
Y
W/BK
Y
W/R
O
BK
BR
BR
BK
R
R
BK
BK
BK
P
EXTERNAL
PROTECTOR