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1. (WO2018198390) AIR CONDITIONER

Pub. No.:    WO/2018/198390    International Application No.:    PCT/JP2017/031462
Publication Date: Fri Nov 02 00:59:59 CET 2018 International Filing Date: Fri Sep 01 01:59:59 CEST 2017
IPC: F24F 11/02
Applicants: HITACHI-JOHNSON CONTROLS AIR CONDITIONING, INC.
日立ジョンソンコントロールズ空調株式会社
Inventors: TANAKA Yukinori
田中 幸範
AWANO Masakazu
粟野 真和
UEDA Yoshiro
上田 貴郎
YOSHIDA Kazumasa
吉田 和正
NOTOYA Yoshiaki
能登谷 義明
Title: AIR CONDITIONER
Abstract:
Provided is an air conditioner in which an indoor heat exchanger can be suitably cleaned. This air conditioner (100) comprises: a refrigerant circuit (Q) in which a refrigerant circulates in a refrigeration cycle via a compressor (31), a condenser, an outdoor expansion valve (34), and an evaporator, in the stated order; and a control unit for controlling at least the compressor (31) and the outdoor expansion valve (34). One of the condenser and the evaporator is an outdoor heat exchanger (32), the other being an indoor heat exchanger (12). The control unit causes the indoor heat exchanger (12) to function as an evaporator, causes the indoor heat exchanger (12) to carry out freezing or condensation, and, after causing the indoor heat exchanger (12) to carry out freezing, increases the opening degree of the outdoor expansion valve (34).