• The thermal expansion valve is replaced with the electronic expansion valve which controls the superheat leaving the evaporator, based on the inputs from the evaporator temperature sensor and the primary suction pressure transducer.
• Three phase evaporator motors with new evaporator fans and stators were added.
• An exclusive R134a compressor with a digital unloader valve was added.
• Anew (deeper) 4 Row E-coated condenser coil was added.
• The Suction Modulation valve and the Suction Unloader valve were removed from the unit.
• The Liquid Injection Valve was changed from normally open LIV to normally closed.
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