Manitowoc S Service Manual page 77

Section 6
Automatic Shut-Off
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 30 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.
Table 6-14. Remote Models
Toggle Switch
Bin Switch
Control Board Relays
#1 Water Pump
#2 Harvest Valve (Left) / HPR Valve
#3 Harvest Valve (Right)
#4 Air Compressor
#5 Water Inlet Valve
#6 Water Dump Valve
#7 Contactor Coil / Liquid Line Solenoid
#7A Compressor
#7B Condenser Fan Motor
Safety Controls (Which could stop ice machine operation)
High Pressure Cut-Out
Main Fuse (On Control Board)
Part Number 80-1480-3
(L1)
Ground
(89)
(55)
High Pressure
Cut-out
(88)
(42)
Ice Thickness
Probe
Water Level
Probe
Compressor
Contactor
Contacts
Black
(L1)
(51)
7. Automatic Shut-Off (Until Bin Switch Closes)
(61)
Control Board
(2)
(6) (60)
(5)
(1)
(7)
(57)
(4)
Trans
(58)
Fuse 7A
L2
(25)
(26)
(9)
(8)
Low DC
Voltage
Plug
(1)
(2)
Red
Yellow
(46)
PTCR
(F1)
Remote Fan Motor
Run Capacitor
Remote — Automatic Shut-Off
Electrical System
Water Valve
(21)
(20) (22)
(82)
HPR Valve
(78)
(79)
(77)
(80)
Harvest Valve
(76)
(81)
Dump Valve
(99)
(98)
Water Pump
(83)
(22)
Liquid Line
(59)
(75)
Solenoid
Contactor Coil
(56)
Air Compressor
(74)
Bin Switch
(6)
Clean
OFF
ON
Run
Cap.
(50)
(45)
(F2)
Remote
Condenser
SV3158-7
ICE
Open
OFF
OFF
OFF (When Used)
OFF (When Used)
OFF
OFF
Open / OFF
OFF
OFF
Closed
Closed
(L2)
6-17