空調給湯システム

Japanese Patent JP5492346

B2

An air-conditioning and hot-water supply system that enables enhancing the efficiency of the whole air-conditioning and hot-water supply system is provided. A refrigerant circuit for air conditioning (10) is provided with a compressor for air conditioning (11), an operation switching means for air conditioning (12), a heat exchanger on the heat source side for air conditioning (13), decompression devices (14, 16), a heat exchanger on the heat utilization side for air conditioning (15) and an intermediate heat exchanger (21) that exchanges heat between a first refrigerant and a second refrigerant, a first branched part (22) that branches between the compressor for air conditioning (11) and the heat exchanger on the heat source side for air conditioning (13) and adjusts a flow rate of the first refrigerant which flows in each branched direction and a second branched part (32) that branches between the compressor for air conditioning (11) and the heat exchanger on the heat utilization side for air conditioning (15) and adjusts a flow rate of the first refrigerant which flows in each branched direction are formed, one end of the intermediate heat exchanger (21) is connected to the first branched part (22) and the second branched part (32), the other end is connected to a junction (24) between the heat exchanger on the heat source side for air conditioning (13) and the heat exchanger on the heat utilization side for air conditioning (15), and the intermediate heat exchanger functions as a condenser of the first refrigerant.

Kotani Honest
Kunio Yoko
Marika Uchida

JP2013500746A

May 14, 2014

February 22, 2011

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株式会社日立製作所

F25B29/00; F24H1/00; F25B7/00

JP2005299935A

2005-10-27

US20100147006A1	2010-06-17
US20100043475A1	2010-02-25

Isono Dozo

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