Freeze Cycle
Average Discharge Pressure
·
A/C: 100 to 155 PSIG
Suction Pressure
·
End Freeze Cycle: 0 to 1.5 PSIG
Refrigerant Metering Device:
·
Capillary tube
Refrigerant Charge (R-134a)
·
9.5 oz.
The thermostat sensing bulb is located into a
plastic tube (bulb holder) secured by two clips
directly to the evaporator serpentine. This control
determines the length of the freezing cycle and
correspondingly the size of the cubes.
A lower setting will produce a larger cube
(oversize) while a higher setting a smaller cuber
(shallow size).
When closed on contacts 3-2 (adjustable between
-7.6
o
F. and 11.5
o
F.) it activates the defrost or
harvest cycle components. The cube size control is
pre-set at the factory (knob in the black dot
position) and doesn’t require any adjustment when
the ambient temperature remains between 15 and
30
o
C (60 and 90
o
F).
Harvest continues until the thermostat warms up to
about 36
o
F. where the unit switches back into a
freeze mode.
Cycle Times:
Listed information is for new, clean machines in a
stabilized situation. Some unit to unit and cycle to
cycle variation is normal.
90°F/70°F (32°C/21°C)
Freezing time: 20 to 21 minutes
Harvest time: 1:15 to 1:30 minutes
Total time: 21:30 to 23 minutes
Weight: 1 lb
Water Drain: 1 qt. water
70°F/50°F (21°C/15°C)
Freezing time: 17:30 to 18 minutes
Harvest time: 1:30 to 1:45 minutes
Total time: 19 to 19:30 minutes
Weight: 1 lb
Water Drain: 1.6 qt. water.
Fan Motor
The fan motor is electrically connected in parallel
to the water pump and it operates continuously
only during the freezing cycle keeping the proper
head pressure by circulating air through the
condenser fins.
Compressor
The hermetic compressor is used to circulate
refrigerant throughout the entire system. It
compresses the low pressure refrigerant vapor
causing its temperature to rise and become high
pressure hot vapor (hot gas) which is then
released through the discharge valve.
Water Spray System
Sprays the water into each individual cup to be
frozen into ice.
CU0515
August 2012
Page 10
