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A. Control Board Layout
1. DCM-270BAH
Control Transformer
Input #7 (W/R)
Drain Valve
#10 (W/DBU)
• K6 Connector
Open
• "SERVICE" Button
(Ice Purge Cycle Bypass)
Control Transformer
24VAC Input #1 (W/R)
Upper Float Switch
#6 (R)
Bin Control
#3 to #4 (GY)
Compressor Delay Relay Circuit
#5 to #6 (W/O)
Relay De-Energized-Open-5VDC
Relay Energized-Closed-0VDC
High-Pressure Switch
#3 to #4 (Y)
Open-5VDC
Closed-0VDC
Control Switch
#1 to #2 (W/BK)
"ICE"-Open-5VDC
"DRAIN"-Closed-0VDC
• "POWER OK" LED
Control Transformer
24VAC Neutral #2 (LBU)
Lower Float Switch
#7 (BU)
Float Switch Output
#5 (BK)(+)
• S1 Dip Switch
• K9 Connector
• K8 Connector
• K7 Connector
• K2 Connector
Fig. 9a
5VDC Ground (GND) Terminals
• K1 Connector
#3 GM (DBU)
#2 GM Voltage
Input (BR)
Inlet Water Valve
#8 (W/BR)
Control Transformer
Input #9 (W/R)
5VDC
115VAC
24VAC
5VDC
5VDC
115VAC
24VAC
Water/Ice Dispense
Output #2 (Y)
Ice Dispense Input
#3 (W/BK)
Water Dispense Input
#8 (P)
24VAC Input
#5 (W/R)
115VAC Input
#3 (BK)
Agitating Motor
#4 (O)
Dispense Motor
#2 (P)
115VAC Input
#3 (BK)
Dispense Water
Valve #6 (W/O)
LED Legend:
COMP-compressor
FLUSH (DRAIN)-drain valve
GM-gear motor
ICE-dispense motor
WTRDP-water dispense valve
WTRIN-inlet water valve
DRAIN
Compressor Relay
115VAC input (BR)
115VAC output (R)