AIR-CONDITIONING AND HEAT-SOURCE MACHINE

WIPO Patent Application WO/2022/255316

A1

The present disclosure provides an air-conditioning and heat-source machine that lowers the discharge pressure of a compressor and reduces the input of the compressor during a heating operation by achieving a counterflow in a water heat exchanger, which serves as a condenser during the heating operation and lowering the condensation temperature of a refrigerant without switching the respective vertical positions of an inlet pipe and an outlet pipe.　This air-conditioning and heat-source machine is provided with a housing 7 enclosing a refrigerant circuit, and a fan 10 that is positioned in an upper portion of the housing 7 and exhausts air inside the housing 7 to the outside, wherein a water heat exchanger 3 is provided with a water flow passage through which water flows from down to up, and a refrigerant flow passage through which a refrigerant flows from up to down during the heating operation, the housing 7 is provided with an outlet 70 connected to a water outlet 30 of the water heat exchanger 3 by a water outlet pipe 72, and an inlet 71 connected to a water inlet 31 of the heat exchanger 3 by a water inlet pipe 73, and the inlet 71 is positioned above the outlet 70.

SHOYAMA TADAYOSHI
HASHIMOTO SHUNICHI
HIROTA MASANOBU
MATSUI MASARU

PCT/JP2022/021981

December 08, 2022

May 30, 2022

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PANASONIC IP MAN CO LTD (JP)

F25B1/00; F24F5/00; F25B13/00

WO2011099629A1	2011-08-18
WO2018062054A1	2018-04-05

KR100741871B1	2007-07-23
JP2014219186A	2014-11-20

KUSHIBUCHI & ASSOCIATES (JP)

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