Technical Characteristics
Typical Cycle Time
•
17 minutes @ 70
o
F. air and 50
o
F. water
•
24 minutes @ 90
o
F. air and 70
o
F. water
Typical Harvest Ice Weight
•
4 pounds .
Typical Low Side Pressure
•
22 - 23 PSIG just before harvest (beginning of freeze may be 45 - 50 PSIG)
Typical Freeze Cycle Discharge Pressure
•
240 - 260 PSIG
•
Minimum (low temps) = 225 PSIG
Refrigerant Charge:
•
136 ounces R-404A
Harvest Time
•
Normally 1
1
⁄
2
to 2 minutes. Depends upon time required to warm suction line to 55
o
F.
Typical Suction Pressure, In Harvest:
•
110- 120+ PSIG
Typical Discharge Pressure, In Harvest:
•
130 - 150 PSIG
Typical Compressor Amp Draw:
•
4 - 5 during freeze cycle; 5 - 6 during the harvest cycle
Compressor:
•
Copeland: RS64C1E-CAV-214
Thermostatic Expansion Valve
•
Superheat is 3
o
- 6
o
F.
Pump down pressure control
•
Cut Out at about 10 PSIG
•
Cut In at about 25 PSIG
Bin Thermostat
•
Cut In to shut off machine at 35
o
F., cut out at 39
o
F.. Adjustable warmer.
Ice Size Thermostat:
•
Switches to harvest cycle with temperature fall to 38
o
F.. Resets at 43
o
F.
Ice Size Heater
•
Adds heat to ice size thermostat to prevent premature harvest.
Harvest Termination Thermostat
•
Switches from contacts C-NC to contacts C-NO to switch to freeze cycle with temperature rise to
55
o
F. Resets at 40
o
F.
SLE400R
January 1995
Page 18
