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. Controls and Adjustments
- 1. Default Dip Switch Settings
- 2. Infrared Sensor Shutdown Delay (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)
- 6. Bin Control Shutdown Delay, Agitation, and Ice Purge Timer (S1 dip switch 8)
- 7. Bin Control Shutdown Delay (S1 dip switch 9)
- 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
64
B. Wiring Diagrams
1. DCM-300BAH(-OS)
R
BK
P
GND
R
1
2
3
4
5
6
X1
K9
S2
8 7 6 5 4 3 2
1
9 8 7 6 5 4 3 2 1
K7
K8
S1
J2
K3
K4
K6
CONTROL BOARD
K5
1 2 3 4 5 6 7 8 9 10
1 2 3
K2
K1
W/O
W/O
FUSE(1A)
L
LBU
R
CONTROL
TRANSFORMER
Y
W/BK
FLOAT SWITCH
(BU)
(R)
(BK)
BR
W
LBU
UPPER
LOWER
120VAC
24VAC
W/O
W/O
LBU
W/R
W/R
W/R
BU
R
BK
W/O
W/O
2
3
POWER
SWITCH
HI-PRESS.
SWITCH
Y
W/R
W/O
W/O
LBU
GY
GY
BIN
CONTROL
W/R
W/R
ICE
OFF
DRAIN
OFF
ICE
DRAIN
VALVE
WATER
DISPENSE
LBU
CONTROL
SWITCH
(BU)
W/O
BR
W/O
W/O
(BK)
BR
GND
(GR)
BR
COMP.
RELAY
115VAC
115VAC
5VDC
5VDC
24VAC
115VAC
24VAC
5VDC
W/BK
W/BK
NOISE KILLER
(BK)
(BK)
VALVE
WATER
INLET
LBU
O
NOISE KILLER
(BK)
(BK)
O
O
W/O
LBU
LBU
LBU
DRAIN VALVE
LBU
W/BU
NOISE KILLER
(BK)
(BK)
LBU
BR
BR
BR
DBU
BR
W/BU
W/BU
W/BU
W/R
W/R
W/R
(BK)
(BK)
NOISE KILLER
(BK)
(BK)
DBU
DBU
P
P
P
P
P
R
R
GY
GY
(BK)
R
115-120/60/1
N
BR
W
BR
GY
7
5
3
1
8
6
4
2
COMPRESSOR CONTROL RELAY
DISPENSE SOLENOID VALVE
AGITATING MOTOR
DISPENSING MOTOR
(BK)
(BK)
(BK)
(BK)
W
DBU
Y
W/R
300BAH-OS
WATER
DISPENSE
SENSOR
ICE
DISPENSE
SENSOR
(BK)
(R)
(W)
(R)
(W)
(BK)
W/BK
Y
(NO)
(COM)
(NO)
P
ICE DISPENSE
SWITCH
WATER
DISPENSE
SWITCH
P
O
BR
SAFETY
SWITCH
(BK)
GEAR MOTOR
INTERNAL
PROTECTOR
(BK)
EXTERNAL
PROTECTOR
(DBU)
W
10 MFD
Y
(Y)
(R)
R
O
P
P
P
P
1
3
2
BR
BR
R
R
R
R
R
P
P
P
R
R
R
W
W
W
W
W
W
BR
W/O
W/O
BR
BR
BR
P
R
R
R
W/O
W/O
GY
GY
GY
GY
LBU
(BK)
BR
DBU
W/BU
LBU
BR
BR
BR
P
W/BU
W/R
BR
W/BK
Y
Y
W/BK
W/BK
W
BR
FAN MOTOR
INTERNAL
PROTECTOR
W/R
W/BK
W/BK
DBU
START CAP.
243-292MFD
1
2
5
COMP.
EXTERNAL
PROTECTOR
RUN CAP.
25MFD
GY
R
O
S
R
C
START RELAY
R
R
W
W
W
GY
W
W
MODELS 1 2 3 4 5 6 7 8 9 10
DCM-300BAH OFF OFF OFF OFF ON ON OFF ON OFF OFF
WIRE COLOR CODE
BK - BLACK
BR - BROWN
BU - BLUE
DBU - DARK BLUE
LBU - LIGHT BLUE
GY - GRAY
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
R
S1 DIP SWITCH SETTINGS
W/BK
DCM-300BAH-OS OFF OFF OFF OFF ON OFF ON OFF OFF
OFF
* High Pressure Switch
Air-Cooled Model
Cut-out
412±
21
PSIG
Cut-in
327±21 PSIG
0
*