Service manual

Electrical System Section 6
6-10
Part No. 80-1100-3
REMOTE MODELS
Initial Start-Up Or Start-Up After
Automatic Shut-Off
1. WATER PURGE
Before the compressor starts, the
water pump and water dump solenoid
are energized for 45 seconds to
purge old water from the ice
machine. This ensures that the ice-
making cycle starts with fresh water.
NOTE: The harvest valve and
harvest pressure regulating (HPR)
solenoid valve are also energized
during the water purge. In the case of
an initial refrigeration start-up, they
stay on for an additional 5 seconds
(50 seconds total).
Figure 6-8. Remote — Water Purge
Table 6-8. Remote Models
1. Water Purge (45 Seconds)
Toggle Switch ICE
Bin Switch Closed
Control Board Relays
#1 Water Pump Closed / ON
#2 Water Fill Valve Open / OFF
#3 Harvest Solenoid Closed / ON
Harvest Pressure Regulating (HPR) Solenoid Closed / ON
#4 Water Dump Valve Closed / ON
#5 Contactor Coil Open / 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
TERMINATES AT
PIN CONNECTION
*OVERLOAD
BIN SWITCH
ICE THICKNESS PROBE
(F1)
TB33
(52)
(51)
(48)
TB35
L1
(42)
CONTACTOR
CONTACTS
(66)
WATER LEVEL PROBE
NOT USED
(64)
TB32
TB35
L1
(55)
HIGH PRES
CUTOUT
(74)
(73)
REMOTE
FAN MOTOR
RUN CAPACITOR
PTCR
TB34
(53)
REMOTE CONDENSER
(F2)
(45)
TB30
BIN SWITCH LIGHT
HARVEST LIGHT/
SAFETY LIMIT CODE LIGHT
RUN CAPACITOR
TOGGLE SWITCH
INTERNAL WORKING
VIEW
CLEAN LIGHT
WATER LEVEL
ICE
(68)
C
S
R
(46)
(49)
(47)
COMPRESSOR
(62)
(66)
(69)
(67)
OFF
CLEAN
1F
1C
LOW D.C.
VOLTAGE
PLUG
(63)
(65)
(62)
1G
R
R
(50)
TB30
68
67
69
66
62
(56)
TB30
TB30
CONTACTOR
COIL
VIEW FOR WIRING
(57)
4
(58)
1
3
FUSE (7A)
TRANS.
5
(61)
(60)
2
HARVEST
(80)
TB31
TB37
(76)
(98)
(59)
(99)
SOLENOID
DUMP
SOLENOID
WATER
PUMP
SOLENOID
TB30
TB30
(82)
(83)
(81)
(75)
LIQUID LINE
(77)
HPR
SOLENOID
(79)(78)
L2 (N)
SEE SERIAL PLATE FOR VOLTAGE
(22)(21)
WATER
VALVE
(20)
SV1648-1