Operation
Liebert
®
InteleCool
®
211
5.0 OPERATION
5.1 Compressorized Cooling
Compressorized cooling is provided by a high-efficiency system consisting of a compressor,
thermostatic expansion valve, evaporator, and condenser coil.
The Liebert InteleCool2 uses R-407C refrigerant in a conventional vapor-compression refrigeration
cycle. Heat is removed from the air in the space by blowing the air across the evaporator coil. As heat
is transferred to the refrigerant in the evaporator, the refrigerant boils and turns to a warm vapor.
The refrigerant vapor enters the compressor and is compressed, resulting in high pressure and
temperature. After entering the condenser, the hot vapor is condensed to a liquid by the air blown
across the condenser coil. Liquid refrigerant then passes through the thermal expansion valve and
into the evaporator. The expansion reduces the pressure and temperature to complete the cycle.
Figure 4 Refrigeration system
Condenser
Scroll Compressor
(Optional compressor location
available on opposite side of unit)
Evaporator
Liquid line
Filter drier
Liquid line
Thermal expansion
valve (not shown)
Note: System is factory-piped and charged.
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