(19)
(11) EP 1 041 348 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
04.07.2001 Bulletin 2001/27

(43) Date of publication A2:
04.10.2000 Bulletin 2000/40

(21) Application number: 00106823.8

(22) Date of filing: 30.03.2000
(51) International Patent Classification (IPC)7: F24F 1/00, F25B 45/00
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 31.03.1999 JP 9180699
01.04.1999 JP 9457599

(71) Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
Kadoma-shi, Osaka 571-8501 (JP)

(72) Inventors:
  • Numoto, Hironao
    Otsu-shi, Shiga 520-2101 (JP)
  • Sato, Shigehiro
    Kusatsu-shi, Shiga 525-0045 (JP)
  • Motegi, Hitoshi
    Kusatsu-shi, Shiga 525-0057 (JP)
  • Watanabe, Yukio, Rm.1108 Co-op Nomura Kyoto Minami
    Kyoto-shi, Kyoto 601-8037 (JP)
  • Takeuchi, Hiroyuki
    Otsu-shi, Shiga 520-2264 (JP)
  • Nakatsuno, Eiji
    Otsu-shi, Shiga 520-2276 (JP)

(74) Representative: Körfer, Thomas, Dipl.-Phys. et al
Mitscherlich & Partner, Patent- und Rechtsanwälte, Sonnenstrasse 33
80331 München
80331 München (DE)

   


(54) Method for installing air conditioner


(57) An object of the invention is to provided an easy method for installing an air conditioner taking an influence on environment into consideration. In the method for installing an air conditioner, an outdoor unit includes a compressor and an outdoor unit heat exchanger into both of which refrigerant gas is charged, an indoor unit includes an indoor unit heat exchanger which is opened into atmosphere, the outdoor unit and the indoor unit are connected through a connecting pipe opened to atmospher, air in the indoor unit heat exchanger and the connecting pipe is replaced by carbon dioxide and then, the carbon dioxide is collected by a trap apparatus having zeolite or calcium hydroxide, after the carbon dioxide is collected, the refrigerant gas in the outdoor unit is charged into the indoor unit heat exchanger or the connecting pipe, wherein when the air in the indoor unit heat exchanger and the connecting pipe is replaced by the carbon dioxide, pressure in the indoor unit heat exchanger and the connecting pipe is brought into a positive pressure state.






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