Hoshizaki Condensing Unit Models SRK-14J/3, KMS-1401MLJ G Control Board, Control Board Layout

1. Control Board Layout

"G" Control Board

• "ALARM RESET" Button • S4 Dip Switch

•Bin Control Switch Closed LED (green)

•Bin Control Switch Open LED (yellow)

•Part Number

• Alarm Buzzer

•Power LED (red)

(lights when 10.5VAC is supplied

to K2 connector)

•Relay LEDs

(4) (indicate which

relays are energized and which K1 connector pins are energized

•LED 2 (X2 Relay)

LED 2 on:

K1 Connector Pin #2 LED 2 off:

K1 Connector Pin #3

• "OUTPUT TEST" Button

(used to test relays on control board)

• K3 (white) Connector Harvest Control (thermistor)

• K4 (red) Connector

Bin Control

• S5 Dip Switch

• K5 (black) Connector

Float Switch

• Label

(control board revision level indicated on label on side of relay)

• K1 Connector Pins #1 through #10

#1, 9 Magnetic Contactor, X13 Relay (holding circuit during Harvest Pump Timer), and

•LED 3 (X3 Relay)

LED 3 on:

K1 Connector Pin #5 (energized during harvest pump timer)

LED 3 off:

K1 Connector Pin #4 (energized in freeze)

•LED 4 (X4 Relay)

K1 Connector Pin #6

•LED 1 (X1 Relay)

K1 Connector Pin #1, #9

•K2 Connector

Control Transformer (10.5VAC)

Drain Valve (during Pump-Out)

#2 Hot Gas Valves (KMS and

SRK) and X10 Relay #3 Liquid Line Valves #4 Pump Motor (freeze) #5 X11 Relay (Pump Motor

in Harvest Pump Timer and Drain Valve in Pump-Out)

#6 Fill Water Valve (InitialFill and Freeze Fill only); Harvest Water Valve and X12 Relay (Harvest only)

#7, 10 Supply Voltage #8 Open

"G" Control Board

Part Number 2A3792-01

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