(19)
(11) EP 2 015 005 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
21.09.2011 Bulletin 2011/38

(43) Date of publication A2:
14.01.2009 Bulletin 2009/03

(21) Application number: 08012385.4

(22) Date of filing: 09.07.2008
(51) International Patent Classification (IPC): 
F25B 13/00(2006.01)
F25B 45/00(2006.01)
 F25B 41/04(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated Extension States:
AL BA MK RS

(30) Priority: 12.07.2007 JP 2007183300

(71) Applicant: Hitachi Appliances, Inc.
Minato-ku Tokyo 105-0022 (JP)

(72) Inventors:
  • Kozai, Tetsuya
    Shizuoka-shi, Shizuoka-ken 424-0926 (JP)
  • Hata, Yoshiki
    Shizuoka-shi, Shizuoka-ken 424-0926 (JP)

(74) Representative: Beetz & Partner 
Patentanwälte Steinsdorfstrasse 10
80538 München
80538 München (DE)

   


(54) Air conditioner and method for controlling the same


(57) There is disclosed an air conditioner having an outdoor unit (A) and plural indoor units (a,b) connected by refrigerant pipes. The plural indoor units (a,b) include a first unit having an expansion valve (5) and a heat exchanger (4) incorporated therein, and a second indoor unit having a heat exchanger (4) incorporated therein. A decompression device including an expansion valve (6) and an on-off valve (7) is connected at the middle of the outward and inward refrigerant pipes connecting the second indoor unit (b) with the outdoor unit (A). This makes it possible to connect different types of indoor units, namely, the first indoor units (a) having the decompression device (5) incorporated therein and the second indoor units having no decompression device incorporated therein.







Search report