Normal Operation - Stage 3; Normal Operation - Stage 4 - Follett Symphony 25HI400A Installation & Service Manual

Normal operation – Stage 3
After the initial high current draw drops off, the gearmotor start relay contacts open, dropping out the start winding. As
the compressor comes up to normal running speed, the compressor start relay contacts also open, dropping out the
start winding of the compressor. The icemaker is now in a normal icemaking mode. The icemaker will begin to produce
ice and continue to produce ice until the bin level control in the ice dispenser is satisfied. The PWR, B-E, DR, C and
WTR LEDs are all on.
INPUT
POWER
G
B
W
COMPRESSOR
C
T.O.L.
RED
WHITE WHITE
Normal operation – Stage 4
Once the ice level control opens, the B-E LED goes out. After a 10 second delay the compressor LED (C), compressor
and fan motor go off. (Should the ice level control not remain open for 10 seconds, the icemaker will continue to run.)
The gearmotor continues to run and the DR LED remains lighted for 60 seconds. The purpose of this function is to
drive the remaining ice out of the evaporator and to boil off any refrigerant remaining in the evaporator. The bin timer
LED (BT) comes on, starting the twenty minute off cycle time delay.
INPUT
POWER
G
B
W
COMPRESSOR
C
T.O.L.
RED
WHITE
WHITE
25CI400A/W • 25HI400A • 50CI400A/W • 50HI400A
GRD
FAN
BLACK
BLACK
M
BLACK
R
M 1
ORANGE
L
S
S
BLACK
HIGH PRESSURE
SAFETY SWITCH
GEARMOTOR
4 2
BLACK
YELLOW
3
GRD
FAN
BLACK
BLACK
M
BLACK
R
M 1
ORANGE
L
S
S
BLACK
HIGH PRESSURE
SAFETY SWITCH
GEARMOTOR
4 2
BLACK
YELLOW
3
WATER
SENSOR
GRD
L1
L1
WHITE
L2
L2
L2
WHITE
L2
L2
RED
COMPRESSOR
BLACK
FAN
DRIVE
BLACK
BLACK
START
RUN
T.O.L.
WATER
SENSOR
GRD
L1
L1
WHITE
L2
L2
L2
WHITE
L2
L2
RED
COMPRESSOR
BLACK
FAN
DRIVE
BLACK
BLACK
START
RUN
T.O.L.
PWR
RESET
DR
C
20M
CONTROL
BOARD
60M
2ND
WTR
B-T
B-E
RED
RED
COMPRESSOR
SWITCH
BIN SIGNAL
FROM DISPENSER
BIN T-STAT
JUNCTION BOX
PWR
RESET
DR
C
20M
CONTROL
BOARD
60M
2ND
WTR
B-T
B-E
RED
RED
COMPRESSOR
SWITCH
BIN SIGNAL
FROM DISPENSER
BIN T-STAT
JUNCTION BOX
25