Follett Symphony Plus 50 Series Installation, Operation And Service Manual page 29

Electrical control system schematic
BLACK #26
L1
WHITE #25
L2/N
GRN-YEL #24
GND
BLACK #23
DISP
BIN
CONTACT
CLOSURE
O.L.
GREEN #57
BLACK #58
BLACK #59
1 2 3 4 5 6 7 8 9
C2 START
COMPRESSOR
COMPRESSOR
ELECTRICAL
BOX
2
5
6
BLACK #71
1
4
C1 RUN
BLACK #66
BLACK #69
Refrigeration cycle
high side
service port
thermostatic
expansion
valve
25CI425A/W, 25HI425A, 50CI425A/W, 50HI425A
P2
P6
P21
P20
P19
P3
P22
BLUE
#15
FEED VALVE
C
S
COMP.
#04
R
DRAIN VALVE
WHITE
#05 START
RELAY
4
2
BLACK
YELLOW
3
FAN
CAPACITOR
BLACK
YELLOW
condenser
filter dryer
evaporator
N N N N N N N N N
T1
BLACK #01
D18
K3
D37
CURRENT SENS
P5
T2
AUGER
GRN #17
SPLIT-PHASE
START
DRAIN CLOG
RUN
T.O.L.
SENSOR
OR
A B C D
RESERVOIR
PSC MOTOR
WATER SENSOR
START
BLUE
RUN
T.O.L.
high pressure
switch
high high
pressure pressure
vapor liquid
BLACK #23
BLACK #51
D1
ICE AUX WATER AUX
P15 P16
D2
D3
D4
HI PRS
P14
D5
K1
S1
D6
D7
MODEL SELECT
D8
D9
P9
D10
2 6
1 5
D11
PROGRAM
D12
S2 RESET
P10
SERIAL COMM
P17
D13
WATER LEVELS
RS485 UI
P7
D14
P13 P8
P12 BIN P11 RS485
D15
P18
P11 CLEAN SAFE
P12 BIN
P17
WATER LEVELS
HI PRS
P14
VIOLET
BLACK
RED
P
ORANGE
HIGH
YELLOW
BLACK
PRESS
low side service port
compressor
low low
pressure pressure
liquid vapor
POWER
LOW BIN
MAKING ICE
SLEEP CYCLE
TIME DELAY
LOW WATER
MAINTENANCE
SERVICE
HI AMPS
HI PRESSURE
DRAIN CLOG
CLEANER FULL
MAINT.
CLEAN
29