Scotsman SCE275 - Manual (Page 10)

SCE275
January 2003
Page 10
Component Description
High Pressure Cut Out - Water Cooled Only
This is a switch that opens to stop the ice machine
when the internal refrigeration pressures become
too high (over 450 PSIG). It is an automatic reset.
Evaporators
Where the ice is formed. There are two vertical
evaporator plates that form vertical strips of cubes.
The strips break up into individual cubes as they
fall.
Thermostatic Expansion Valve
The thermostatic expansion valve is used to meter
liquid refrigerant into the evaporator, adjusting the
flow of refrigerant as required to make ice.
Reservoir:
Contains the water used for ice.
Water Inlet Valve:
Opens to allow water into the reservoir.
Water Level Sensor:
Controls the size of the ice cube by measuring how
much water is used in a cycle. It consists of a float,
stem and electric eye. The stem will move slightly
when the pump is on, this is normal. As the
machine makes ice the reservoir water level will fall
and the visible portion of the stem will slide down
thru the slot in the sensor body.
AutoIQ Controller:
Controls the operation of the ice machine. Turns it
on and off; switches it between cycles; shows
information via indicator lights; and shuts the
machine down if there is a problem.
Evaporators/Freezing Compartment:
Location of the 2 evaporators. Ice forms on the
evaporators and is released when warmed up
during the harvest cycle.
Cube Deflector:
The slots in the inclined deflector let the water
falling from the evaporators back into the reservoir,
but when ice falls during harvest, the ice slides off
into the bin.
Water Trough
Diverts water from the evaporators to the right and
left to keep water off the ice.
Refrigeration Service Access Valves:
Only to be used by a certified technician. Allows
access to the refrigeration system for diagnostic
information.
Water Pump:
Forces the water from the reservoir to the top of
the evaporators. The motor is separated from the
reservoir water to minimize contact with the water.
Compressor:
The refrigerant vapor pump, it forces the refrigerant
to flow thru the refrigeration system tubing.
Hot Gas Valve:
Closed during freeze, it opens during harvest to
divert hot discharge refrigerant gas into the inlet of
the evaporators.
Condenser:
Either air or water cooled, discharges the heat
produced in ice making.