1. Control Board Layout
Control Products "G" Control Board
"ALARM RESET" Button
Bin Control Switch
Closed LED (green)
Bin Control Switch
Open LED (yellow)
Part Number
Alarm Buzzer
LED 2 (green)
Hot Gas Valve (HGV)
Self-Contained Fan
Motor (FMS) (FMS off
when LED on)
Power LED (red)
(lights when power
is supplied to the
board)
LED 3 (green)
Pump Motor (PM)
(PM on, but LED off,
at freeze cycle)
LED 4 (green)
Inlet Water Valve
(WV)
LED 1 (green)
Compressor (Comp)
Connector K2
Transformer
S4 Dip
Switch
Part Number 2A3792-01 (factory); 2A3792-02 (service)
"OUTPUT TEST" Button
(used to test relays on board)
Control Board
17
Connector K3
Harvest Control
(thermistor)
Connector K4
Mechanical Bin
Control
S5 Dip Switch
(factory set -
do not adjust)
Connector K5
Float Switch
Label
(board revision level
indicated on label
on side of relay)
Connector K1
Pins #1 through #10
#1, 9 Magnetic Contactor
#2 Hot Gas Valve (HGV)
#3 Liquid Line Valve (LLV)
#4 Pump Motor (icemaking)
#5 Pump Motor (harvest,
pump out)
#6 Inlet Water Valve (WV)
#7, 10 Supply Voltage
#8 Open
Switch for "C" board
and "ALPINE" board
(service boards only)