Service manual

Electrical System Section 6
6-12 Part No. 80-1100-3
Freeze Sequence
3. PRE-CHILL
To pre-chill the evaporator, the
compressor runs for 30 seconds prior
to water flow.
NOTE: The water fill valve remains
on until the water level sensor closes
for three continuous seconds.
Figure 6-10. Remote — Pre-Chill
Table 6-10. Remote Models
3. Pre-Chill (30 Seconds)
Toggle Switch ICE
Bin Switch Closed
Control Board Relays
#1 Water Pump Open / OFF
#2 Water Fill Valve Closed / ON
#3 Harvest Solenoid Open / OFF
Harvest Pressure Regulating (HPR) Solenoid Open / OFF
#4 Water Dump Valve Open / OFF
#5 Contactor Coil Closed / ON
Liquid Line Solenoid Energized
Compressor ON
Condenser Fan Motor ON
Safety Controls (Which could stop ice machine operation)
High Pressure Cut-Out Closed
Main Fuse (On Control Board) Closed
TERMINATES AT
PIN CONNECTION
*OVERLOAD
BIN SWITCH
ICE THICKNESS PROBE
(F1)
TB33
(52)
(51)
(48)
T
B35
L1
(42)
CONTACTOR
CONTACTS
(66)
WATER LEVEL PROBE
NOT USED
(64)
TB32
T
B35
L1
(55)
HIGH PRES
CUTOUT
(74)
(73)
REMOTE
FAN MOTOR
RUN CAPACITOR
PTCR
TB34
(53)
REMOTE CONDENSER
(F2)
(45)
TB3
0
BIN SWITCH LIGHT
HARVEST LIGHT/
SAFETY LIMIT CODE LIGHT
RUN CAPACITOR
TOGGLE SWITCH
INTERNAL WORKING
VIEW
CLEAN LIGHT
WATER LEVEL
(68)
ICE
C
S
R
(46)
(49)
(47)
COMPRESSOR
(62)
(66)
(69)
(67)
OFF
CLEAN
1F
LOW D.C.
VOLTAGE
PLUG
(63)
(65)
(62)
1G
1C
R
R
(50)
TB3
0
68
67
69
66
62
(56)
COIL
VIEW FOR WIRING
TB3
0
CONTACTOR
TB3
0
(57)
4
(58)
1
3
FUSE (7A)
TRANS.
5
(61)
(60)
2
HARVEST
(80)
TB31
TB37
(76)
(98)
(99)
(75)
SOLENOID
DUMP
SOLENOID
(81)
WATER
PUMP
SOLENOID
TB3
0
TB3
0
(82)
(59)
(83)
LIQUID LINE
HPR
SOLENOID
L2 (N)
SEE SERIAL PLATE FOR VOLTAGE
(22)(21)
WATER
VALVE
(77)
(79)(78)
(20)
SV1648-3