Normal operation – Stage 1
Power is supplied to L1 of the control board. The ice level control in the dispenser is closed and calling for ice,
supplying signal voltage to the control board. The control board will now go through the start up sequence. Less
than 30 seconds will elapse as the water sensor located in the float reservoir checks for water in the reservoir.
The Bin Empty LED (B-E) will be on.
Normal operation – Stage 2
The water sensor verifies water in the float. The Water OK LED (WTR) comes on. At the same time, the
gearmotor, compressor, and condenser fan motor come on, lighting the Drive LED (DR) and compressor LED
(C). The compressor is started through a current style relay that is pulled in by the initial high current draw of the
compressor. The B-E and WTR LED remain on.
M
GRD
L1
L1
L2
L2
L2
L2
L2
COMPRESSOR
FAN
DRIVE
DR
C
20M
60M
2ND
WTR
B-T
B-E
RESET
X
GRD
G
B
W
FAN
BLACK
WHITE
BLACK
BLACK
R
ORANGE
S
S
L
COMPRESSOR
C
RED
BLACK
BLACK
WHITE
INPUT
POWER
CONTROL
BOARD
BLACK
GEARMOTOR
24V
COMMON
LINE VAC
RED
RED
WHITE
BLACK
BIN T-STAT
BIN SIGNAL
FROM DISPENSER
JUNCTION BOX
WHITE
RED
WHITE
M
1
4
3
L1
L2
HI-TEMP SAFETY
T-STAT (W/C ONLY)
COMPRESSOR
SWITCH
WATER
SENSOR
PWR
4
M
GRD
L1
L1
L2
L2
L2
L2
L2
COMPRESSOR
FAN
DRIVE
DR
C
20M
60M
2ND
WTR
B-T
B-E
RESET
X
GRD
G
B
W
FAN
BLACK
WHITE
BLACK
BLACK
R
ORANGE
S
S
L
COMPRESSOR
C
RED
BLACK
BLACK
WHITE
INPUT
POWER
CONTROL
BOARD
BLACK
GEARMOTOR
24V
COMMON
LINE VAC
RED
RED
COMPRESSOR
SWITCH
WHITE
BLACK
BIN T-STAT
BIN SIGNAL
FROM DISPENSER
JUNCTION BOX
WHITE
RED
WHITE
M
1
HI-TEMP SAFETY
T-STAT (W/C ONLY)
4
3
L1
L2
WATER
SENSOR
PWR