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 Fill 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
26-23 P.S.I.G.
Freeze Time
13-15 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.
CMS1002R
September, 1993
Page 16
