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In this video I will explain the operation of a refrigeration system composed of two compressors supplying 2 cold rooms at 2 different temperatures. Each element of the circuit will be described and explained, then the operation of the regulation will be detailed. https://www.abcclim.net/ The elements explained in this video: Compressor safety Oil separator Condenser Liquid tank Liquid sight glass Electromagnetic valve External equalization expansion valve Liquid distributor KVP evaporator Regulation of compressors and evaporators Transducers