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1. (WO2019003532) AIR-CONDITIONING DEVICE

Pub. No.:    WO/2019/003532    International Application No.:    PCT/JP2018/013048
Publication Date: Fri Jan 04 00:59:59 CET 2019 International Filing Date: Thu Mar 29 01:59:59 CEST 2018
IPC: F25B 49/02
F25B 1/00
Applicants: FUJITSU GENERAL LIMITED
株式会社富士通ゼネラル
Inventors: SANADA, Shintaro
真田 慎太郎
ITAKURA, Shunji
板倉 俊二
HIROSAKI, Yu
廣崎 佑
Title: AIR-CONDITIONING DEVICE
Abstract:
An air-conditioning device (1) wherein the amount of refrigerant filling a refrigerant circuit (100) is set within a range defined by a lower limit filling amount and an upper limit filling amount. The lower limit filling amount is an amount with which the refrigerant supercooling degree at the refrigerant outlet side of a supercooling heat exchanger (23) is 0 degrees and the refrigerant dryness degree is 0, when a cooling operation is carried out under an overload condition in which the refrigerant does not easily condense in an outdoor heat exchanger (22) functioning as a condenser. The upper limit filling amount is an amount with which the refrigerant supercooling degree at the refrigerant outlet side of the outdoor heat exchanger (22) is 0 degrees and the refrigerant dryness degree is 0, when a cooling operation is carried out under a rated condition in which the refrigerant more easily condenses in the outdoor heat exchanger (22) than in the overload condition.