Hoshizaki KM-150BAF Service Manual page 12

Connector K1
Pins #1 through #10
#1, 9 Magnetic Contactor
#2 Hot Gas Valve
#3 Line Valve
#4 Pump Motor (icemaking)
#5 Pump Motor (drain)
#6 Water Valve
#7, 10 Power (line, Bin Control)
#8 Open
Dip Switch
Defrost Timer, Drain Timer
& Drain Counter
Connector K5
Float Switch
Connector K4
Open
(not connected)
Connector K3
Defrost Control
(Thermistor)
(Alpine "C"/Alpine Board)
12