(19)
(11) EP 0 426 450 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
20.05.1992 Bulletin 1992/21

(43) Date of publication A2:
08.05.1991 Bulletin 1991/19

(21) Application number: 90311922.0

(22) Date of filing: 31.10.1990
(51) International Patent Classification (IPC)5: F24F 11/00
(84) Designated Contracting States:
FR GB

(30) Priority: 31.10.1989 JP 283921/89

(71) Applicant: KABUSHIKI KAISHA TOSHIBA
Kawasaki-shi, Kanagawa-ken 210 (JP)

(72) Inventors:
  • Tatematsu, Makoto, c/o Intellectual Property Div.
    Tokyo (JP)
  • Tanaka, Toshimasa, c/o Intellectual Property Div.
    Tokyo (JP)

(74) Representative: Muir, Ian R. et al
HASELTINE LAKE & CO. Hazlitt House 28 Southampton Buildings Chancery Lane
London WC2A 1AT
London WC2A 1AT (GB)


(56) References cited: : 
   
       


    (54) Method of wiring/piping confirmation of a multiple air conditioner


    (57) A method and apparatus for wiring/piping confirmation of a multiple air conditioner is disclosed in which a plurality of internal units is actuated manually or automatically or by remote control, a refrigerant pipe for a single internal unit is opened and the resulting change is detected by the internal unit. The changing data is returned to the controller through a serial communication wiring or together with the identification number of the internal unit by bus communication. The controller confirms the correspondence relationship between the wiring that has received the data or the identification number of the internal unit and the opened piping. This process is repeated with respect to each internal unit.







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