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JP6881419B2 |
To provide an air conditioner capable of increasing a dehumidification amount in a third dehumidifying operation.An air conditioner includes a control section (100). The control section (100) executes a first dehumidifying operation in w...
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JP6880213B2 |
An air-conditioning apparatus includes a refrigerant circuit in which an outdoor unit, at least one load-side expansion device, and at least one load-side heat exchanger are connected by pipes to allow refrigerant to circulate. The outdo...
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JP6881538B2 |
A refrigeration apparatus (1) includes a heat source-side unit (10) and a utilization-side unit (50) that are connected to each other, and performs a refrigeration cycle in which a high pressure of a refrigerant reaches or exceeds a crit...
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JP6878612B2 |
A refrigeration cycle apparatus (200) includes an outdoor unit (101) including a compressor (1), a first heat exchanger (3), and a first expansion valve (41), an indoor unit (102) including a second expansion valve (42) and a second heat...
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JP2021071208A |
To return refrigerator oil to a compressor in a short time.A refrigerating device comprises: a first compressor (40); a second compressor (50); a first gas-liquid separator (11); a second gas-liquid separator (21); a first suction pipe (...
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JPWO2020188756A1 |
An object of the present invention is to provide an air conditioner capable of reducing the amount of refrigerant retained in the liquid side connection pipe and contributing to saving refrigerant when applying a flammable refrigerant or...
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JP6865111B2 |
To prevent a case in which a high pressure does not increase.A heat pump device 1 which can cool or heat a circulation liquid includes an outside air-refrigerant heat exchanger 31, a circulation liquid-refrigerant heat exchanger 32, a re...
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JP6865146B2 |
To provide a heat pump heat source machine which suppresses deterioration in heating efficiency or cooling efficiency.A first refrigerant pipeline 8, a second refrigerant pipeline 9, a third refrigerant pipeline 10 and a fourth refrigera...
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JP6865846B2 |
The air-conditioning apparatus of the present disclosure includes a refrigerant circuit in which a compressor, a flow passage switching device, an outdoor heat exchanger, an indoor heat exchanger, a refrigerant container, a first expansi...
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JP6865845B2 |
An air-conditioning apparatus includes a refrigeration circuit, a first shut-off device, a leakage detection device, and a controller configured to perform a refrigerant recovery operation in a case where refrigerant leakage is detected....
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JP2021063624A |
To insulate heat of refrigerant pipes properly.A switching unit 1 includes refrigerant pipes 30, a first on-off valve 31, a second on-off valve 32, a third on-off valve 33, a fourth on-off valve 34, a case 41, sheet-like heat insulation ...
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JP6857815B2 |
To enhance reliability of a refrigeration cycle device after disproportionation reaction of a working medium containing ethylene fluorohydrocarbon of double bonds.In a refrigeration cycle device in which a working medium containing ethyl...
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JP2021055917A |
To suppress refrigerant getting hard to flow into a gas-liquid separator (15) in a refrigeration unit in which there are provided the gas-liquid separator (15) in a downstream side of a heat radiator, and a refrigerant circuit (6) in whi...
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JP6854455B2 |
Provided is an air conditioning device which has a plurality of compressors connected in parallel, and can be operated at high efficiency regardless of the magnitude of a required load. This air conditioning device is provided with: a fi...
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JPWO2020003490A1 |
The air conditioner consists of a refrigerant circuit in which a compressor, a heat source side heat exchanger, an expansion valve and a load side heat exchanger are connected and a refrigerant circulates, an indoor fan that supplies air...
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JP6852642B2 |
A heat pump cycle includes a compressor, a heat exchanger, a gas-liquid separator, and an outdoor heat exchanger. The heat pump cycle includes a main circuit connecting the compressor, the heat exchanger, the gas-liquid separator, and th...
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JP6850367B2 |
This method for controlling an air conditioning apparatus (1), includes: a step for circulating a refrigerant via a refrigerant pipe (4) between an outdoor unit (2) and a plurality of indoor units (3); a step for acquiring operation stat...
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JP6853205B2 |
A low-capacity indoor unit (20C) having a rated cooling capacity of less than 2.2 kW includes an announcement unit (100d) that announces an abnormality when the low-capacity indoor unit (20C) is connected to an outdoor unit other than a ...
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JPWO2019225005A1 |
The heat exchanger includes a main heat exchanger, at least one first sub heat exchanger, a distributor that distributes the working fluid guided to the main heat exchanger to multiple paths, and a first valve provided in the header. It ...
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JP6846915B2 |
To provide a multi-room type air conditioner capable of improving indoor comfort at a thermo-OFF time in a heating operation, and improving energy saving performance.In a multi-room type air conditioner in which an outdoor unit 100 havin...
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JP6848528B2 |
To provide an air conditioning device capable of finely controlling a capacity by using an expansion valve of a large diameter capable of securing a wide flow rate adjustment range and a large flow rate, even when deviation is found betw...
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JP6849037B1 |
To suppress an increase in thermal stress of a supercooled heat exchanger when switching from a first refrigeration cycle to a second refrigeration cycle. A heat source unit (10) including a heat source circuit (11) and constituting a re...
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JP6846613B2 |
A split-type air conditioning and heat pump system an indoor unit, an outdoor unit and an energy efficient arrangement. The indoor unit includes an indoor housing having an indoor air inlet, and an indoor heat exchanger. The outdoor unit...
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JP6846614B2 |
An air conditioning and heat pump tower includes a main casing, a plurality of connecting pipes, a compressor, a front heat exchanger, a rear heat exchanger, a fan unit, and an energy efficient arrangement. The energy efficient arrangeme...
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JP6842960B2 |
To preferably prevent comfort from missing due to inflow of air conditioning air having relatively low-temperature into an indoor while preferably preventing frosting to an outdoor heat exchanger, in a heating operation under a low-outdo...
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JP6842961B2 |
To preferably prevent comfort from missing due to inflow of air conditioning air having relatively low-temperature into an indoor while preferably preventing frosting to an outdoor heat exchanger, in a heating operation under a low-outdo...
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JP2021508809A |
The air conditioner system includes a compressor 1 connected in series, an indoor heat exchanger 2, a first throttle device 3 and an outdoor heat exchanger 4 in the main circuit, and the main circuit includes the heat exchanger 5 Is furt...
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JP2021508024A |
In the air conditioner system, the compressor 1 connected in series, the indoor heat exchanger 2, the first throttle device 3, and the outdoor heat exchanger 4 are included in the main circuit, and the heat exchanger 5 is included in the...
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JP6834561B2 |
To provide air conditioning equipment in which each indoor unit can exhibit a sufficient cooling capacity by flowing a sufficient amount of refrigerant into an indoor unit which cannot exhibit a cooling capacity.A CPU 210 determines whet...
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JP6835055B2 |
To provide a refrigeration device capable of cooling an electric component in a refrigerant circuit having a bypass passage.A refrigerant circuit 30 configured to circulate a refrigerant in a refrigeration device 1 having a compressor 11...
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JP6834562B2 |
To provide an air conditioning device capable of exhibiting a sufficient cooling capacity in each indoor unit by allowing a sufficient amount of refrigerant to flow into the indoor unit which cannot exhibit a cooling capacity.CPUs 510a-5...
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JP6830152B2 |
Provided is a system (10) for air-conditioning and hot-water supply configured to selectively perform a cooling operation and heating operation, comprising: an outdoor unit (110) having a compressor (111) and an outdoor heat exchanger (1...
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JPWO2019198175A1 |
The refrigerating cycle device according to the present invention is a refrigerating cycle device including a compressor, a flow path switching device, a first heat exchanger, a drawing device, and a refrigerant circuit in which a second...
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JP6828176B2 |
A multi-type air-conditioning system includes an outdoor unit including an outdoor heat exchanger, a plurality of indoor units each including an expansion valve into which the refrigerant passing through the outdoor heat exchanger flows ...
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JP6827279B2 |
A cooling/heating switching unit is provided that is capable of simply and reliably detecting leak of refrigerant. The cooling/heating switching unit includes: a fitting 37 and a fitting 38 that have a high/low-pressure gas main pipe 24 ...
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JP6823681B2 |
A flow path switching mechanism (70) includes first to fourth flow paths (71, 72, 73, 74) and opening and closing mechanisms (V1, V2, V3, V4, 75, 76) that can each open and close a corresponding one of the flow paths (71, 72, 73, 74). A ...
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JP6825233B2 |
To suppress occurrence of dew condensation in a device, when the air conditioning device implements a low capacity cooling operation.At least one apparatus among a compressor, an indoor expansion valve 41 as a pressure reduction mechanis...
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JP6824259B2 |
An air conditioner comprises: an indoor unit and a plurality of outdoor units forming a refrigeration circuit in which a compressor, an outdoor heat exchanger, an expansion valve, and an indoor heat exchanger are connected so that a refr...
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JP6823316B2 |
To provide a cold and hot water generating device that can be miniaturized to install a cold and hot water type radiation panel air conditioning in a small space and expand use of it.A heat source machine 1 with a minimum capacity that i...
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JP6822389B2 |
To provide an air conditioner enabling the quiet thereof to be improved.The air conditioner comprises a control part controlling an indoor fan. The control part comprises: a first air volume automatic mode for controlling, with a first a...
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JP6818198B2 |
An air conditioning and heat pump system includes a main heat exchange system, a heat distribution system and an energy efficient arrangement. The energy efficient arrangement includes a first energy saver heat exchanger connected to a f...
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JP6808812B2 |
The air conditioning device according to an embodiment of the present invention has a plurality of indoor units, an outdoor unit, and a control unit. The indoor units respectively have indoor heat exchangers, and indoor expansion valves ...
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JP6804631B2 |
When a refrigerant leakage sensor (4A, 4B) detects a leakage of refrigerant, a refrigerant recovery operation is started. In the refrigerant recovery operation, recovery of refrigerant in an accumulator (108) and a pump down operation ar...
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JP2020201013A |
To reduce an amount of a refrigerant filling a refrigerant cycle system.A refrigerant cycle system 100 includes: a vapor compression type primary side cycle 20 which circulates a first refrigerant; a vapor compression type secondary side...
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JP2020201009A |
To solve a problem that when a flammable or toxic refrigerant is used, refrigerant filling amount allowable per indoor volume is restricted in some cases, but there is no description about the restriction of the refrigerant filling amoun...
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JP2020197323A |
To provide an air conditioning system capable of efficiently supplying electric power from a power supply unit to an indoor unit in which power source is interrupted.An air conditioning system comprises a refrigerant cycle, a power suppl...
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JP6798009B2 |
A refrigeration cycle apparatus (2) according to the present invention includes a flow path switching unit (162) and a controller (172). The flow path switching unit (162) is connected between an expansion valve (140) and a second heat e...
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JP2020193793A |
To provide a cooling/heating power generation cycle device that efficiently performs cooling and heating, and electric power generation by providing a vapor compression type refrigeration cycle (cooling air conditioner) with a heating ci...
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JP6790966B2 |
A control unit (19) that controls the operation of a refrigerant circuit (10) executes pump down operation in which a non-azeotropic refrigerant mixture is collected into a portion of the refrigerant circuit (10) within an outdoor unit (...
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JP6791349B2 |
A dehumidifier (1) is provided with an evaporator (31), a condenser (33b), a housing (10), and a blower fan (21). A part of the air taken into the housing (10) by means of the blower fan (21) sequentially passes through the evaporator (3...
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