Scotsman MCM1062R - Manual (Page 18)

SERVICE SPECIFICATIONS
When servicing a machine, it’s helpful to compare
that unit’s operating characteristics to those of a
new, clean, normally operating machine. What
follows is that type of information:
COMPONENTS
Timer: Makes one complete revolution in 8 minutes. The harvest time is factory preset at 2 1 ⁄
4
minutes.
The harvest time is adjustable as required.
Inlet Water Valve: Opens and admits
3 ⁄
4
gallon per minute during the harvest cycle.
Cube Size Control: Reverse acting temperature control, contacts close between 24
0
F. and 0
0
F. Typically
adjusted to close at 13
0
F.
Pump Down Control: Contacts open at 20 P.S.I.G. and close at 35 P.S.I.G.
High Pressure Safety Switch: Contacts open at 400 P.S.I.G.
Bin or Ice Level Control
Maximum Full Height 8" from the base of the ice machine.
Partial Setting 21" - 22" from the base of the ice machine.
Maximum Storage Bin Interior Height 8’ from the base of the ice machine.
OPERATING CHARACTERISTICS
The values listed below are representative of
values seen at a wide range of air and water
temperatures and are for a normal cube size.
Temperatures are Condenser/ Ambient Air/ Water
FREEZE CYCLE
Average Discharge Pressure at Average Temp.
275-210 P.S.I.G.
Suction pressure at the end of the freeze cycle 24-20 P.S.I.G.
Freeze Time 15-17 minutes
HARVEST CYCLE
Average Discharge Pressure
175 P.S.I.G.
Average Suction Pressure Lo Temp (0/70/55) 75-80 P.S.I.G.
Average Temp (90/90/70) 80-90 P.S.I.G.
High Temp (110/90/80) 90-100 P.S.I.G.
Harvest time is assumed to be 2.25 minutes. This can be adjusted to suit local conditions.
This unit uses R-22. The system charge is 256 ounces. If the nameplate lists a different quantity of
refrigerant, go by the nameplate.
MCM1062R
October 1993
Page 18