Title:
冷媒及び油回収運転方法、および、冷媒及び油の回収制御装置
Document Type and Number:
Japanese Patent JP4120221
Kind Code:
B2
Abstract:
A method for refrigerant and oil collecting operation capable of assuring the cleanliness of the inside of an existing communication pipe at a low cost and installing, at a low cost, a new air conditioner, comprising a compressor (1), a heat source side heat exchanger (3), a decompressing mechanism (4), and a user side heat exchanger (5), comprising the steps of performing a pipe heating operation in a heating operation mode and performing a refrigerant and oil collecting operation to collect refrigerant to a heat source side heat exchanger (3), namely, with the refrigerant heated to a temperature higher than that where contaminants such as refrigerator oil inside a refrigerant circuit is dissolved into the refrigerant, performing the refrigerant and oil collecting operation so as to assure the cleanliness of the inside of the existing communication pipes (7, 8).
Inventors:
Shigeharu Taira
Junichiro Tanaka
Junichiro Tanaka
Application Number:
JP2001581043A
Publication Date:
July 16, 2008
Filing Date:
April 25, 2001
Export Citation:
Assignee:
Daikin Industries, Ltd.
International Classes:
F25B45/00; F25B13/00; F25B43/02
Domestic Patent References:
| JP10246521A | ||||
| JP9152233A | ||||
| JP9250850A |
Foreign References:
| WO1996012921A1 |
Attorney, Agent or Firm:
Aoyama Aoi
Hiroshi Yamazaki
Hiroshi Yamazaki