[A] Control Board Layout - Hoshizaki KM-61BAH Service Manual

[a] CONTROL BOARD LAYOUT

Connector K3
Magnetic Contactor
Connector K4
Open
POWER OK LED
(Lights when power is
supplied to the board.
Flashes when bin control
is activated.)
Connector K5
Pins
#1 Fan Motor
#2 Hot Gas Valve
#3 Pump Motor
#4 Water Valve
#5 Open
#6 Drain Valve
Connector K6
Open
Connector K1
Pins
#1, 3 Float Switch
#2 Open
#4, 5 Bin Control
#6, 7 Thermistor
#8, 9 Open
Connector K2
Open
"H" Control Board
Alarm Buzzer S1 Dip Switch
Auxiliary Code
Factory Part Number
Service Part Number
Type
Connector K7
Transformer
S2 Dip Switch
(service board only)
Control Board
V0 or Earlier
P00013-03
P00013-02
HKM2006V003
13
Relay LEDs (6)
(indicate which relays
are energized as
listed below)
LED 5 (X1 Relay)
Compressor (Comp)
Remote Fan Motor
(FMR)
LED 6 (X2 Relay)
Hot Gas Valve (HGV)
Self-Contained Fan
Motor (FMS) (FMS off
when LED on)
LED 8 (X4 Relay)
Inlet Water Valve (WV)
(Harvest Water Valve
(HWV) on units with
two inlet water valves)
LED 9 (X5 Relay)
Freeze Water Valve
(FWV) on units with
two inlet water valves
(service board only)
LED 4 (X6 Relay)
Drain Valve (DV)
LED 7 (X3 Relay)
Pump Motor (PM)
Connector K8
Open
Output Test Button
(used to test relays on
board)
Alarm Reset Button
V1 or Later
P01771-01
P01771-02