Compression machines, plant, or systems with reversible cycle not otherwise provided for

FMECHANICAL ENGINEERING LIGHTING HEATING WEAPONS BLASTING ENGINES OR PUMPS F25Refrigeration F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS COMBINED HEATING AND REFRIGERATION SYSTEMS HEAT-PUMP SYSTEMS

F25B2313/00Compression machines, plant, or systems with reversible cycle not otherwise provided for

F25B2313/001with two or more accumulators F25B2313/002geothermal F25B2313/003Indoor unit with water as a heat sink or heat source F25B2313/004Outdoor unit with water as a heat sink or heat source F25B2313/005Outdoor unit expansion valves F25B2313/006two pipes connecting the outdoor side to the indoor side with multiple indoor units F25B2313/007three pipes connecting the outdoor side to the indoor side with multiple indoor units F25B2313/008Refrigerant heaters F25B2313/009indoor unit in circulation with outdoor unit in first operation mode, indoor unit in circulation with an other heat exchanger in second operation mode or outdoor unit in circulation with an other heat exchanger in third operation mode F25B2313/021Indoor unit or outdoor unit with auxiliary heat exchanger not forming part of the indoor or outdoor unit F25B2313/0211the auxiliary heat exchanger being only used during defrosting F25B2313/0212the auxiliary heat exchanger being only used during dehumidifying F25B2313/0213the auxiliary heat exchanger being only used during heating F25B2313/0214the auxiliary heat exchanger being used parallel to the indoor unit during heating operation F25B2313/0215the auxiliary heat exchanger being used parallel to the outdoor heat exchanger during heating operation F25B2313/023using multiple indoor units F25B2313/0231with simultaneous cooling and heating F25B2313/0232with bypasses F25B2313/02321during cooling F25B2313/02322during defrosting F25B2313/02323during heating F25B2313/0233in parallel arrangements F25B2313/02331during cooling F25B2313/02332during defrosting F25B2313/02333during dehumidification F25B2313/02334during heating F25B2313/0234in series arrangements F25B2313/02341during cooling F25B2313/02342during defrosting F25B2313/02343during dehumidification F25B2313/02344during heating F25B2313/025using multiple outdoor units F25B2313/0251being defrosted alternately F25B2313/0252with bypasses F25B2313/02521during cooling F25B2313/02522during defrosting F25B2313/02523during heating F25B2313/0253in parallel arrangements F25B2313/02531during cooling F25B2313/02532during defrosting F25B2313/02533during heating F25B2313/0254in series arrangements F25B2313/02541during cooling F25B2313/02542during defrosting F25B2313/02543during heating F25B2313/027characterised by the reversing means F25B2313/0271the compressor allows rotation in reverse direction F25B2313/0272using bridge circuits of one-way valves F25B2313/02731using one three-way valve F25B2313/02732using two three-way valves F25B2313/02741using one four-way valve F25B2313/02742using two four-way valves F25B2313/02743using three four-way valves F25B2313/0276using six-way valves F25B2313/0279using nine-way valves F25B2313/02791using shut-off valves F25B2313/02792using reversing valve changing the refrigerant flow direction due to pressure differences of the refrigerant and not by external actuation F25B2313/029Control issues F25B2313/0291related to the pressure of the indoor unit F25B2313/0292related to reversing valves F25B2313/0293related to the indoor fan F25B2313/0294related to the outdoor fan F25B2313/031Sensor arrangements F25B2313/0311Pressure sensors near the expansion valve F25B2313/0312Pressure sensors near the indoor heat exchanger F25B2313/0313Pressure sensors near the outdoor heat exchanger F25B2313/0314Temperature sensors near the indoor heat exchanger F25B2313/0315Temperature sensors near the outdoor heat exchanger F25B2313/0316Temperature sensors near the refrigerant heater