Title:
AIR CONDITIONER
Document Type and Number:
Japanese Patent JP2021162252
Kind Code:
A
Abstract:
To provide an air conditioner capable of controlling an amount of refrigeration machine oil staying in a compressor at an appropriate amount.SOLUTION: When one of a first compressor 21a or a second compressor 21b is driven and a rotational frequency of the compressor to be driven is equal to or larger than a first threshold, the number of compressors to be operated is increased so that the rotational frequency of each of the compressors is equal to or smaller than the first threshold. When both of the first compressor 21a and the second compressor 21b are driven and the rotational frequency of each of the compressors is equal to or smaller than a second threshold, the number of compressors to be operated is decreased so that the rotational frequency of the compressors to be driven is equal to or larger than the second threshold.SELECTED DRAWING: Figure 1
Inventors:
FUJISAWA KENJI
NAKAJIMA TAKESHI
KIMURA TAKASHI
TAKAHASHI TOSHIHIRO
NAKAJIMA TAKESHI
KIMURA TAKASHI
TAKAHASHI TOSHIHIRO
Application Number:
JP2020065193A
Publication Date:
October 11, 2021
Filing Date:
March 31, 2020
Export Citation:
Assignee:
FUJITSU GENERAL LTD
International Classes:
F25B1/00; F25B49/02