GEAppliances CFE28TSH Technical Service Manual page 54

The compressor compresses R134a refrigerant, raising its pressure and temperature. Refrigerant vapor is
pumped out the compressor discharge, down through the drain pan loop, up through the condenser coil,
around the condenser loop, through the drier, and into the 3-way valve. By the time the refrigerant has
reached the 3-way valve, it has completely condensed into a liquid. Depending upon whether the main
control board opens the 3-way valve to the freezer evaporator or the fresh food and freezer evaporators,
through the appropriate capillary tube and into the evaporator. As the high pressure liquid
passes through the capillary and enters the low pressure evaporator, it quickly expands and evaporates.
During evaporation, the refrigerant absorbs heat, becoming cold. At the outlet of the freezer evaporator, an
accumulator captures any remaining liquid, allowing only low pressure vapor to return to the compressor
through the suction line.
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