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Refrigeration compressor with pump actuated oil return
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Non-freeze drain assembly
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Water defrost evaporator with non-uniform water distribution
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Segmented door for enclosure
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Apparatus and method for distributing volatile refrigerant
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Refrigeration system with hot gas defrost
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Pressure switch for outdoor refrigeration systems
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Power saving capacity control for air cooled condensers
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Heat reclaim for refrigeration systems
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Defrost controls for refrigeration systems
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Dual voltage forced air heat exchanger
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Refrigeration systems including evaporator with 2 speed fan motor
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