Table of Contents
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1. Control Board Layout
"ALARM RESET" Button
Backup Freeze
Timer LED
Backup Harvest
Timer LED
Alarm Buzzer
Power LED
(lights when
power is supplied
to the board)
Relay LEDs (4)
(indicate which
relays are energized
as listed below)
LED
Hot Gas Valve
(HGV)
Self-Contained Fan
Motors (FMS) (FMS
off when LED on)
LED 3
Pump Motor (PM)
(on at pump out only)
LED 4
Inlet Water
Valve (WV)
LED 1
Compressor (Comp)
Remote Fan Motors
(FMR)
Transformer
Connector
Part Number
Type
Control Products "E" Control Board
S4 Dip Switch
Control Board
2A1410-01 (factory); 2A1410-02 (service)
HOS-001A (Control Products - 10 Pin)
"OUTPUT TEST" Button
(used to test relays on board)
12
Connector K3
Harvest Control
(thermistor)
Connector K4
Open
(not connected)
Microprocessor
(board revision level
indicated by last
digits on label)
Connector K5
Float Switch
Part Number
Connector K1
Pins #1 through #10
#1, 9 Magnetic Contactor
# Hot Gas Valve
#3 Liquid Line Valve
Self-Contained Fan Motors
(FMS)
#4 Pump Motor (icemaking)
#5 Pump Motor (pump out)
#6 Inlet Water Valve
#7, 10 Power Supply
#8 Open
Switch for "C" board
and "ALPINE" board
(service boards only)
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