EP 1526341 A1 20050427 - Multi-unit air conditioner and method for controlling the same
Title (en)
Multi-unit air conditioner and method for controlling the same
Title (de)
Mehrzonenklimaanlage und Verfahren zur Steuerung derselben
Title (fr)
Conditionneur d'air comprenant plusieurs unités et procédé de commande de celui-ci
Publication
Application
Priority
KR 20030073328 A 20031021
Abstract (en)
An air conditioner having an outdoor unit (100) and a plurality of indoor units (200a-d) connected to the outdoor unit (100), and a method of controlling an operation of the air conditioner. The air conditioner includes an outdoor control unit (120) and a plurality of indoor control units (210a-d). The indoor control units (210a-d) output operational loads to be borne by the indoor units (200a-d), and the outdoor control unit (120) controls an opening ratio of an outdoor expansion valve (102) in response to the operational loads to be borne by the indoor units (200a-d), thus appropriately controlling the amounts of refrigerant fed from compressors (103a/b) to indoor units (200a-d) operating in a cooling mode and indoor units (200a-d) operating in a heating mode. The outdoor control unit (120) further determines a desired compression capacity of the compressors (103a/b) according to outdoor air temperatures, and controls the rpm of an outdoor fan (113) according to an output refrigerant pressure of the compressors (103a/b), thus optimally operating the compressors (103a/b) in response to variations in the outdoor air temperatures.
IPC 1-7
IPC 8 full level
F24F 3/06 (2006.01); F24F 11/00 (2006.01); F24F 11/02 (2006.01); F25B 5/02 (2006.01); F25B 13/00 (2006.01)
CPC (source: EP)
F24F 3/065 (2013.01); F25B 13/00 (2013.01); F24F 2221/54 (2013.01); F25B 2313/007 (2013.01); F25B 2313/0231 (2013.01); F25B 2313/025 (2013.01); F25B 2313/0294 (2013.01); F25B 2400/075 (2013.01); F25B 2600/0271 (2013.01); F25B 2600/2501 (2013.01); F25B 2600/2513 (2013.01); F25B 2600/2519 (2013.01); F25B 2700/172 (2013.01); F25B 2700/1931 (2013.01); F25B 2700/2104 (2013.01); F25B 2700/2106 (2013.01); F25B 2700/21152 (2013.01)
Citation (search report)
- [A] US 5040376 A 19910820 - UENO KIYOTAKA [JP]
- [A] US 5009078 A 19910423 - OHKOSHI SEIZI [JP], et al
- [A] US 5009077 A 19910423 - OKOSHI SEIJI [JP], et al
- [PA] EP 1371911 A1 20031217 - LG ELECTRONICS INC [KR]
- [A] PATENT ABSTRACTS OF JAPAN vol. 015, no. 142 (M - 1101) 10 April 1991 (1991-04-10)
Designated contracting state (EPC)
DE ES FR GB IT
DOCDB simple family (publication)
EP 1526341 A1 20050427; EP 1526341 B1 20060712; CN 1324272 C 20070704; CN 1609527 A 20050427; DE 602004001501 D1 20060824; DE 602004001501 T2 20070222; JP 2005127687 A 20050519; JP 3857274 B2 20061213; KR 101003356 B1 20101223; KR 20050038115 A 20050427
DOCDB simple family (application)
EP 04250231 A 20040117; CN 200410002285 A 20040116; DE 602004001501 T 20040117; JP 2004016196 A 20040123; KR 20030073328 A 20031021