EP 2532992 B8 20180228 - Multi-type air conditioner and control method therefor
Title (en)
Multi-type air conditioner and control method therefor
Title (de)
Multityp-Klimaanlage und Regelverfahren dafür
Title (fr)
Climatiseur multitype et son procédé de commande
Publication
Application
Priority
JP 2011128876 A 20110609
Abstract (en)
[origin: EP2532992A1] Provided are a multi-type air conditioner and a control method therefor, in which it is possible to swiftly reach an ideal zone-control region at a switchover from open-loop control to zone control and to the multi-type air conditioner with high COP while ensuring stable operation of a compressor. In a multi-type air conditioner (1) that includes a first electronic expansion valve (8) and a plurality of second electronic expansion valves (10A to 10F) corresponding to respective rooms, the first electronic expansion valve (8) is open-loop controlled for a predetermined period of time at a degree of opening calculated based on particular parameters, at a starting time of a heating operation and at a time of a change in the number of operated indoor units; is switched to zone control in which a discharge degree of superheat is controlled so as to fall within a target zone; and is provided with an expansion-valve control section (24) that corrects, when a temperature deviation of the discharge degree of superheat with respect to the target zone and a time variation of the discharge degree of superheat are large at the switchover to zone control, a degree of opening of the first electronic expansion valve for the next open-loop control in response thereto.
IPC 8 full level
F25B 13/00 (2006.01); F25B 49/02 (2006.01)
CPC (source: EP)
F25B 13/00 (2013.01); F25B 49/02 (2013.01); F25B 2313/005 (2013.01); F25B 2313/0233 (2013.01); F25B 2313/02741 (2013.01); F25B 2313/029 (2013.01); F25B 2500/26 (2013.01); F25B 2600/21 (2013.01)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2532992 A1 20121212; EP 2532992 B1 20180124; EP 2532992 B8 20180228; ES 2659744 T3 20180319; JP 2012255599 A 20121227; JP 5797022 B2 20151021
DOCDB simple family (application)
EP 12170925 A 20120606; ES 12170925 T 20120606; JP 2011128876 A 20110609