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Patent Searching and Data


Title:
HOT WATER/COLD WATER AIR-CONDITIONING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2017/138133
Kind Code:
A1
Abstract:
A hot water/cold water air-conditioning system equipped with: a heat pump heat source machine having a compressor; an air conditioner; piping that forms a water circulation passage by connecting the heat pump heat source machine and the air conditioner in a circular arrangement; a water circulation pump that circulates water in the water circulation passage; a water temperature sensor that detects the temperature of the outgoing water from the heat pump heat source machine; and a control device that executes a thermo on/off control for controlling thermo on/off on the basis of the difference between a target water temperature that has been set and the temperature of the outgoing water. If it is determined that a thermo on/off cycle operation is being executed in the compressor, the control device switches to a thermo on/off suppression control. In the thermo on/off suppression control the control device sets the thermo on and thermo off operating conditions on the basis of the temperature of the refrigerant in the compressor at the time it is determined that the thermo on/off cycle operation is being executed.

Inventors:
KAWAMURA, Atsushi (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
UCHINO, Shinichi (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
MITO, Takafumi (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
Application Number:
JP2016/054038
Publication Date:
August 17, 2017
Filing Date:
February 10, 2016
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORPORATION (7-3 Marunouchi 2-chome, Chiyoda-ku Tokyo, 10, 〒1008310, JP)
International Classes:
F24F11/02
Foreign References:
JP2015098982A2015-05-28
JP2015200470A2015-11-12
JP2015215107A2015-12-03
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (East 8F, TORANOMON TWIN BLDG. 10-1 Toranomon 2-chome, Minato-k, Tokyo 01, 〒1050001, JP)
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