Follett Symphony Plus 50 Series Installation, Operation And Service Manual page 24

Normal operation – Stage 8
When the dwell time of 20 minutes has expired, the TIME DELAY LED goes off . If 5 seconds of ice has been
dispensed and the SLEEP CYCLE LED (Symphony Plus only) is off, the ice machine will go through the normal
start-up sequence when the bin level control signals the control board for ice .
Start
Capacitor Relay
OR
YELLOW
A B C D
Water Sensors
Quiet Night/Sleep cycle (Symphony Plus only)
The board monitors ice dispensing through a line voltage input to P15 . If the ice dispense has not be initiated for
more than 5 seconds during the 20 minute time delay, the SLEEP CYCLE LED comes on . The machine will stay off
for 12 hours unless 5 seconds of dispensing is seen . After 12 hours, the SLEEP CYCLE LED goes out and the ice
making will resume if the bin thermostat is closed . The sleep cycle dispense duration is adjustable using the DIP
switches on the control board .
24
T.O.L.
R
S
C
Compressor
2 1
RED
Start
Relay
5
Compressor
Electrical Box
WHITE
Drain Fill
4
Valve Valve
3 2
BLACK
R
S
C
Gearmotor
Drain Clog Sensor
Fan
WHITE
N
N
L1
BLACK
L1
RED
P6
P21
P20
BROWN
P19
BLACK
P3
P22
BLUE
P4
AUGER
Bin T-Stat
25CI425A/W, 25HI425A, 50CI425A/W, 50HI425A
High
Pressure
Switch
POWER
P15
LOW BIN
MAKING ICE
SLEEP CYCLE
HI PRS
TIME DELAY
LOW WATER
1 2 3 4 5 6 7 8
MAINTENANCE
RESET
SERVICE
HI AMPS
WATER LEVELS
HI PRESSURE
DRAIN CLOG
P11
BIN
CLEANER FULL
Clean Switch