Scotsman CME250 - Manual (Page 18)

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