High refrigerant pressure
Should the refrigeration pressure rise above 425 psi, the high pressure switch contacts will open . The board sees
the open circuit and the
HIGH PRESSURE and TIME DELAY LEDs will come on, the machine shuts down . After
the one hour time delay, the machine will attempt to restart . If the pressure has fallen below the reset point of 295
psi and the board see the contacts closed, the machine will resume normal operation . If the contacts are still open
after the restart, the board will again go into
HIGH PRESSURE and TIME DELAY, cycling until contact closure is
seen .
5
2
1
Start
Run
Compressor
T.O.L.
MAINTENANCE
LOW WATER
TIME DELAY
SLEEP CYCLE
MAKING ICE
LOW BIN
POWER
SERVICE
HI AMPS
HI PRESSURE
CLEANER FULL
High
Pressure
Switch
R S
C
Gearmotor
Start
Relay
Start
Relay
N
L1
Fan
A B C D
Water Sensors
RESET
Fill
Valve
Drain
Valve
3
4
2
Bin T-Stat
Clean Switch
P6
P21
P20
P19
P3
P22
P4
AUGER
WATER LEVELS
BIN P11
HI PRS
L1
R
S
C
RED
WHITE
WHITE
BLACK
BROWN
BLUE
RED
BLACK
YELLOW
Compressor
Electrical Box
COMPRESSOR
1 2 3 4 5 6 7 8
BLACK
N
P15
Ice Dispense Input
Refrigeration cycle
high side
service port
filter dryer
condenser
low side service port
high pressure
switch
compressor
evaporator
thermostatic
expansion
valve
high
pressure
vapor
high
pressure
liquid
low
pressure
vapor
low
pressure
liquid
E12CI425A 230 V 50 Hz, C12CI425A 220 V 60 Hz 31