Follett ER400A Installation, Operation & Service Manual page 23

Normal operation – Stage 2
The water sensor verifies water in the float reservoir. 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 gearmotor is started through a normally open current style relay that is pulled in by the initial high current
draw of the run winding. The compressor is started with the start winding being energized through the normally
closed contacts of the potential relay, starting capacitor, and the run capacitor. The PWR, BE and WTR LED
remain on.
GRN IN
ELEC BOX
GREEN/YELLOW
G
BROWN BROWN
L
BLUE BLUE
N
START
CAPACITOR
RUN
CAP. .
O ORANGE ORANGE
BLACK BLACK
M
FAN
WHITE
WHITE
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 open and the starting
capacitor drops out. The start winding remains energized through the run capacitor. 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.
GRN IN
ELEC BOX
GREEN/YELLOW
G
BROWN
L
BLUE
N
START
CAPACITOR
RUN
CAP.
ORANGE
BLACK
M
FAN
WHITE WHITE
WATER
SENSOR
WHITE WHITE WHITE
BLACK BLACK BLACK
WHITE WHITE WHITE
POTENTIAL
5
START RELAY
BLACK BLACK
2
1
ORA ORA
T.O.L.
RED RED
C
COMPRESSOR
BLACK BLACK
4 2
BLACK BLACK
YELLOW
3
GEARMOTOR
WATER
SENSOR
WHITE
BLACK
WHITE
POTENTIAL
5
START RELAY
BLACK
2
1
ORANGE
T.O.L.
RED
S
C
R
COMPRESSOR
BLACK
4 2
BLACK
START
RUN
YELLOW
3
GEARMOTOR
L1
L2
RED RED
COMP
FAN
DRV
T.O.L.
L1
L2
RED
COMP
FAN
DRV
T.O.L.
23
DISPENSER
POWER
T-STAT
DR
C
20M
SIGNAL
60M
SWITCH
2ND
WTR
B-T
B-E
COMPRESSOR
SWITCH
HIGH PRESSURE
SAFETY SWITCH E
BLACK C BLACK C
DISPENSER
POWER
T-STAT
DR
C
20M
SIGNAL
60M
SWITCH
2ND
WTR
B-T
B-E
COMPRESSOR
SWITCH
HIGH PRESSURE
SAFETY SWITCH
BLACK BLACK
BIN
BIN
BIN
BIN