(19)
(11) EP 1 645 810 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
24.05.2006 Bulletin 2006/21

(43) Date of publication A2:
12.04.2006 Bulletin 2006/15

(21) Application number: 05101206.0

(22) Date of filing: 17.02.2005
(51) International Patent Classification (IPC): 
F24F 3/06(2006.01)
F24F 11/02(2006.01)
 F25B 13/00(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
Designated Extension States:
AL BA HR LV MK YU

(30) Priority: 06.10.2004 KR 2004079624

(71) Applicant: SAMSUNG ELECTRONICS CO., LTD.
Suwon-si, Gyeonggi-Do 442-742 (KR)

(72) Inventors:
  • Song, Myung Seob
    Suwon-Si, Gyeonggi-do (KR)
  • Jung, Gyoo Ha
    Suwon-Si Gyeonggi-Do (KR)
  • Park, Moon Soo
    Dongan-Gu, Anyang-Si Gyeonggi-Do (KR)
  • Kim, Woo Hyun
    Seoul, (KR)

(74) Representative: Geary, Stuart Lloyd et al
Venner Shipley LLP 20 Little Britain
London EC1A 7DH
London EC1A 7DH (GB)

   


(54) Multi-unit air conditioning system


(57) A multi-chamber type air conditioning system for simultaneously operating a plurality of indoor units in heating and cooling modes, and a method for controlling the system. The multi-chamber type air conditioning system includes a bypass circuit connected between a high-pressure gas pipe, connected between an outlet of a compressor and the indoor units, and a liquid pipe, connected between the outdoor heat exchanger and the indoor units; and a control unit for controlling the quantity of the refrigerant flowing into the indoor units, operated in a cooling mode, using the bypass circuit based on operating conditions. The multi-chamber type air conditioning system increases the quantity of a refrigerant flowing into the indoor units, operated in the cooling mode, so as not to deteriorate the cooling capacities of the indoor units, operated in the cooling mode, thereby increasing performances of the indoor units, operated in the cooling mode, when the system is operating in a main heating mode. Further, the multi-chamber type air conditioning system controls the opening degree of an outdoor electric valve such that the pressure of the refrigerant at an outlet of a compressor is in a proper range, thereby being stabilized in a short period of time.







Search report