Title:
AIR-CONDITIONING SYSTEM AND CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2021/214930
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a system and method with which it is possible to minimize a temperature decrease during a dehumidification operation by each indoor unit, and in which the dehumidification capability does not decrease during low load. In an air-conditioning system: an indoor unit includes an indoor heat exchanger, a temperature detection means for detecting the indoor temperature, and a humidity detection means for detecting the indoor humidity; and an outdoor unit includes an outdoor heat exchanger and a compressor for circulating a refrigerant between the outdoor unit and the indoor unit. The air-conditioning system is provided with: a valve provided between the outdoor heat exchanger and the indoor heat exchanger; a rotation speed control means 32 for controlling the rotation speed of the compressor according to the temperature detected by the temperature detection means; and an opening degree control means 33 for controlling the opening degree of the valve according to the humidity detected by the humidity detection means.
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Inventors:
IIZUKA TAIKI (JP)
URATA KAZUMOTO (JP)
YAMADA KUNIYUKI (JP)
NAKAYASU SATORU (JP)
URATA KAZUMOTO (JP)
YAMADA KUNIYUKI (JP)
NAKAYASU SATORU (JP)
Application Number:
PCT/JP2020/017448
Publication Date:
October 28, 2021
Filing Date:
April 23, 2020
Export Citation:
Assignee:
HITACHI JOHNSON CONTROLS AIR CONDITIONING INC (JP)
International Classes:
F25B1/00; F24F11/84; F24F11/86
Domestic Patent References:
WO2015166576A1 | 2015-11-05 |
Foreign References:
JP2003254583A | 2003-09-10 | |||
JP2017089950A | 2017-05-25 | |||
JP2006242403A | 2006-09-14 | |||
JPH0914727A | 1997-01-17 | |||
JP2002107001A | 2002-04-10 |
Attorney, Agent or Firm:
MAYAMA INTERNATIONAL PATENT OFFICE (JP)
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