Electrical System Section 6
6-8 Part No. 80-1100-3
6. HARVEST
The harvest valve(s) remains open,
allowing refrigerant gas to warm the
evaporator. This causes the cubes to
slide, as a sheet, off the evaporator
and into the storage bin.
The sliding sheet of cubes swings the
water curtain out, opening the bin
switch. This momentary opening and
closing of the bin switch terminates
the Harvest Cycle and returns the ice
machine to the Freeze Cycle (steps
3-4).
Figure 6-6. Self-Contained — Harvest
Table 6-6. Self-Contained Models
6. Harvest (Until Bin Switch Activation)
Toggle Switch ICE
Bin Switch Closed
Control Board Relays
#1 Water Pump Open / OFF
#2 Water Fill Valve Open / OFF
#3 Harvest Solenoid Closed / ON
#4 Water Dump Valve Open / OFF
#5 Contactor Coil Closed / ON
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
*OVERLOAD
FAN CYCLE CONTROL
BIN SWITCH
TB35
TB33
(52)
(51)
(48)
CONTACTOR
CONTACTS
L1
(42)
(66)
(64)
ICE THICKNESS PROBE
WATER LEVEL PROBE
NOT USED
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