Title:
空気調和機ならびにその洗浄運転制御方法
Document Type and Number:
Japanese Patent JP3915123
Kind Code:
B2
Abstract:
An air conditioner which includes ports (22, 23, 24) provided on portions in a refrigerant circuit where oil are liable to gather, such as bottoms of a compressor (1), accumulator (5), a receiver (12) and the like, through which ports a refrigerant is extracted and charged. The air conditioner is further provided with a control unit (50) for controlling washing operation for the refrigerant circuit, such that at the time of washing of the refrigerant circuit, washing operation is continued under the control of the control unit (50) for a predetermined period of time while increasing a frequency of the compressor (1) so as to, for example, make a temperature in a discharge pipe (2) higher than a predetermined value, and then is stopped, and the washing operation is resumed after a fixed period of time. In the air conditioner, washing of the refrigerant circuit is efficiently and effectively performed by repeatedly starting and stopping the operation of the compressor (1) predetermined times within a predetermined period of time. After washing, the refrigerant and an oil are replaced by new ones. Such replacement is simply performed through the ports (22, 23, 24).
Inventors:
Shigeharu Taira
Yoichi Onuma
Yoichi Onuma
Application Number:
JP51378296A
Publication Date:
May 16, 2007
Filing Date:
October 24, 1995
Export Citation:
Assignee:
Daikin Industries, Ltd.
International Classes:
F25B45/00; F25B43/00; F25B43/02; F25B47/00
Domestic Patent References:
| JP5066482U | ||||
| JP4198676A | ||||
| JP4356673A | ||||
| JP6221727A | ||||
| JP8100968A |
Attorney, Agent or Firm:
Aoyama Aoi
Hiroshi Yamazaki
Hiroshi Yamazaki