Manitowoc J250 User Manual

Section 6Electrical System
6-16
7. Automatic Shut-Off
If the storage bin is full at the end of a
harvest cycle, the sheet of cubes fails to
clear the water curtain and holds it open.
After the water curtain is held open for 7
seconds, the ice machine shuts off.
The ice machine remains off until enough
ice is removed from the storage bin to
allow the sheet of cubes to drop clear of
the water curtain. As the water curtain
swings back to the operating position, the
bin switch closes and the ice machine
restarts.
NOTE: The ice machine must remain off
for 3 minutes before it can automatically
restart.
(Old Style Control Board Shown)
Remote Models
7. Automatic Shut-Off (Until Bin Switch Closes)
Toggle Switch
ICE
Bin Switch
Closed
Control Board Relays
#1 Open
Water Pump OFF
#2 Open
Hot Gas Solenoid OFF
Harvest Pressure Regulating (HPR) Solenoid OFF
#3 Open
Water Dump Valve OFF
#4 Open
Contactor Coil OFF
Liquid Line Solenoid De-Energized
Compressor OFF
Condenser Fan Motor OFF
Safety Controls (Which could stop ice machine operation)
High Pressure Cut-Out Closed
Main Fuse (On Control Board) Closed
Transformer Fuse (On Control Board) Closed
Thermistor Operation OK
SV1558
(74)
L1
TB35
SEE SERIAL PLATE FOR VOLTAGE
L2 (N)
TB32 (55)
HIGH
PRESSURE
CUT-OUT
HPR
SOLENOID
(79)(78)
(61)
(60)
(71)
(76)
(80)
HOT GAS
SOLENOID
DUMP
SOLENOID
TB30
TB30
TB30
TB30
(75)
(98) (99)
WATER
PUMP
TB31
TB37
(57)
(58)
(59) (82)(83)
LIQUID LINE
SOLENOID
CONTACTOR
COIL
(56)
(73)
(81)
TRANS. FUSE
FUSE (7A)
3
1
2
4
ICE THICKNESS PROBE
DISCHARGE LINE THERMISTOR
1D
1A
1C
1B
LOW D.C.
VOLTAGE
PLUG
(62)
(63)
(65)(64)
(66)
BIN SWITCH
(66)
(67)
(62)
(69)
(68)
ICE
OFF
CLEAN
HARVEST LIGHT/
SAFETY LIMIT CODE LIGHT
BIN SWITCH LIGHT
TOGGLE SWITCH
←
←←
←INTERNAL
WORKING VIEW
66
62
67
68
69
VIEW FOR WIRING
(49)
(47)
(46)
(45)
(50)
TB30
TB30
TB35
(48)(42)
(51)
(52)
L1
TB33 TB34
(53)
(F1) (F2)
CONTACTOR
CONTACTS
TERMINATES AT
PIN CONNECTION
COMPRESSOR RUN CAPACITOR
RR
PTCR
REMOTE FAN
MOTOR
RUN CAPACITOR
REMOTE
CONDENSER
*OVERLOAD
RS
C

Manitowoc J250 Specifications

General

Brand	Manitowoc
Model	J250
Category	Ice Maker
Language	English