General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B

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• F25B 2400/01 Heaters
• F25B 2400/02 Centrifugal separation of gas, liquid or oil
• F25B 2400/03 Suction accumulators with deflectors
• F25B 2400/04 Refrigeration circuit bypassing means
• F25B 2400/05 Compression system with heat exchange between particular parts of the system
• F25B 2400/06 Several compression cycles arranged in parallel
• F25B 2400/07 Details of compressors or related parts
• F25B 2400/08 Refrigeration machines, plants and systems having means for detecting the concentration of a refrigerant
• F25B 2400/09 Refrigeration machines, plants and systems having means for detecting the concentration of a sorbent solution
• F25B 2400/11 Drop catchers
• F25B 2400/12 Inflammable refrigerants
• F25B 2400/13 Economisers
• F25B 2400/14 Power generation using energy from the expansion of the refrigerant
• F25B 2400/15 Microelectro-mechanical devices
• F25B 2400/16 Receivers
• F25B 2400/17 Re-condensers
• F25B 2400/18 Refrigerant conversion
• F25B 2400/19 Pumping down refrigerant from one part of the cycle to another part of the cycle, e.g. when the cycle is changed from cooling to heating, or before a defrost cycle is started
• F25B 2400/21 Modules for refrigeration systems
• F25B 2400/22 Refrigeration systems for supermarkets
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