Scotsman SCE170 - Manual (Page 18)

Technical Characteristics
Typical Cycle Time
•
15 - 20 minutes (time depends upon how clean unit is, plus the air and water temperatures).
Typical Harvest Ice Weight
•
1.6 to 1.8 lb. ice harvested per cycle.
Typical Low Side Pressure
•
25 PSIG just before harvest
Typical Freeze Cycle Discharge Pressure
•
Air cooled: 300 PSIG declining to 210 PSIG
•
Water cooled: 245 PSIG
Refrigerant Type / Charge
•
Air Cooled: R-404A / 17 ounces A series, 16 ounces B and Cseries
•
Water Cooled: R-404A / 9 ounces A series, 11 ounces B series and 10 ounces C series
Harvest Time:
•
Varies with ambient, usually about 1.5 - 2 minutes. Unit is in harvest until the curtain opens. The
unit may remain in harvest a maximum of 7 minutes, after which the machine returns to the freeze
cycle.
Typical Low Side Pressure, in harvest
•
85 - 100 PSIG
Typical Discharge Pressure in harvest
•
195 - 210 PSIG
Hi Pressure Cut Out
•
Cuts Out at (450 PSIG air cooled, 350 PSIG water cooled); Cuts In at 350 PSIG (air cooled)
Typical Compressor Amp Draw
•
Freeze: 6-7
•
Harvest: 7-8
Superheat
•
4-6
o
F. 10 minutes into freeze cycle. TXV is not adjustable.
Finish Freeze Time
•
4 minutes after cube size thermostat closes (indicator light on control board is ON in Timed Freeze)
Air cooled fan motor
•
16 watt rating; 1500 RPM; CW. Stops during harvest.
Compressor
•
Copeland hermetic, capacitor start, induction run.
Water Pump Motor
•
4 pole, unit bearing type.
Cube Size Control
•
Adjustable Cut In temperature as needed to obtain correct ice bridge thickness, about 8
o
F. - 10
o
F.
•
Cut In at about 31 PSIG (with normal heat load)
SCE170
June 2002
Page 18