Follett T400A Installation, Operation And Service Manual page 23

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 gearmotor start windings are also energized through a current relay (or start capacitor). The B-E and WTR LED
remain on.
INPUT
POWER
G
B
W
COMPRESSOR
C
T.O.L.
RED
WHITE
Normal operation – Stage 3
After the initial high current draw drops off, the gearmotor start relay contacts open dropping out the start winding (or
start capacitor). As the compressor comes up to normal running speed, the compressor start relay contacts open,
dropping out the start winding of the compressor. The ice machine is now in a normal icemaking mode. The ice
machine will produce ice until the bin level control in the ice dispenser is satisfied. The B-E, DR, C and WTR LEDs
are all on.
INPUT
POWER
G
B
W
COMPRESSOR
T.O.L.
RED
WHITE
GRD
FAN
BLACK
BLACK
M
BLACK
R
M
ORANGE
S L
S
BLACK
HIGH PRESSURE
SAFETY SWITCH
START
GEAR MOTOR
RELAY
START
4 2
BLACK
3
YELLOW RUN
T.O.L.
START CAP.
GEAR MOTOR
START
RED
RUN
T.O.L.
GRD
FAN
BLACK
BLACK
M
BLACK
R
M
ORANGE
C
S
S
BLACK
HIGH PRESSURE
SAFETY SWITCH
START
GEAR MOTOR
RELAY
START
4 2
BLACK
3
RUN
YELLOW
START CAP.
GEAR MOTOR
START
RED
RUN
T400A/W, MCD400A/W, R400A/W, MFD400A/W, D400A/W Ice Machines
WATER
SENSOR
WHITE
WHITE
RED
BLACK
1
BLACK
BLACK
BISON GEARMOTOR
OR
LINIX GEARMOTOR
WATER
SENSOR
WHITE
WHITE
RED
BLACK
1
L
BLACK
BLACK
BISON GEARMOTOR
T.O.L.
OR
LINIX GEARMOTOR
T.O.L.
PWR
RESET
GRD
DR
L1
L1
C
L2
20M
CONTROL
L2
BOARD 60M
L2
L2
2ND
L2
WTR
B-T
COMPRESSOR
B-E
FAN
DRIVE
COMPRESSOR
SWITCH
BIN SIGNAL
FROM DISPENSER
BIN T-STAT
JUNCTION BOX
(MCD400A/WVS series –
blk wire is on 24V)
PWR
RESET
GRD
DR
L1
L1
C
L2
20M
CONTROL
L2
BOARD 60M
L2
L2
2ND
L2
WTR
B-T
COMPRESSOR
B-E
FAN
DRIVE
COMPRESSOR
BIN SIGNAL
FROM DISPENSER
JUNCTION BOX
(MCD400A/WVS series –
blk wire is on 24V)
RED
RED
RED
RED
SWITCH
BIN T-STAT
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