Scotsman CME250 - Technical Characteristics; Cycle Performance Data; Refrigerant and Pressure Specifications; Component Operating Parameters

Technical Characteristics
Typical Cycle Time
•• 21 minutes @ 90
o
F. air and 70
o
F. water
•• 16 minutes @ 70
o
F. air and 50
o
F. water
Typical Harvest Ice Weight
•• 2.5 - 3 pounds.
Typical Low Side Pressure Just Before Harvest
•• Air cooled = 35 PSIG; Water cooled = 28 PSIG
Typical Freeze Cycle Air Cooled Discharge Pressure
•• 220 PSIG @ 70
o
F. air and 50
o
F. water
•• 280 PSIG @ 90
o
F. air and 70
o
F. water
Refrigerant Charge:
•• Air cooled = 27 ounces HP62
•• Water cooled = 17 ounces HP62
Harvest Time
•• Pre-set at 2 and a quarter minutes. Adjustable to match field requirements.
Typical Low Side Pressure, in harvest:
•• Water cooled = 86 PSIG ; Air cooled = 100 PSIG @ 90
o
F. air and 70
o
F. water
Typical Discharge pressure, in harvest:
•• Water cooled = 160 PSIG; Air cooled = 200 PSIG @ 90
o
F. air and 70
o
F. water
Hi Pressure Cut Out Point:
•• 450 PSIG, air cooled; 400 PSIG, water cooled
Fan Pressure Switch
•• 240 PSIG C.I.
•• 190 PSIG C.O.
Hi Temperature Cut Out Point:
•• 140
o
F. (at hot gas valve)
Typical Compressor Amp Draw:
•• 10-13 during the freeze cycle and 11-14 during the harvest cycle.
Compressor:
•• Copeland: RS43C1E-CAA-213
Water Inlet Valve Flow Rate:
•• .33 g.p.m.
Cube Size Thermostat:
••
Adjustable Cut In as needed to obtain correct cube size, C.I. range between 24
o
F. and 0
o
F
Bin Thermostat
••
Adjustable; C.I. range between 38.5
o
F. and 43.5
o
F, C.O. range between 33.5
o
F. and 38.5
o
F
Thermostatic Expansion Valve
••Not adjustable
CME250
October 1994
Page 18