US 7,587,909 B2
Multi type air-conditioner and control method thereof
Seok-Ho Yoon, Gyeonggi-Do (Korea, Republic of); Si-Kyong Sung, Seoul (Korea, Republic of); Do-Yong Ha, Seoul (Korea, Republic of); Jin-Ha Choi, Gyeonggi-Do (Korea, Republic of); and Ho-Jong Jeong, Seoul (Korea, Republic of)
Assigned to LG Electronics Inc., Seoul (Korea, Republic of)
Filed on Feb. 15, 2006, as Appl. No. 11/354,093.
Claims priority of application No. 10-2005-0013307 (KR), filed on Feb. 17, 2005.
Prior Publication US 2006/0179868 A1, Aug. 17, 2006
Int. Cl. F25B 39/04 (2006.01)
U.S. Cl. 62—324.6  [62/324.1] 5 Claims
OG exemplary drawing
 
1. A multi type air conditioner comprising:
an outdoor unit including an outdoor heat exchanger that exchanges heat with outdoor air, a compressor that compresses a refrigerant, a first four-way valve that connects an outlet of the compressor to the outdoor heat exchanger, and a second four-way valve disposed at the outlet of the compressor in parallel with the first four-way valve;
indoor units that perform at least one of a cooling operation and a heating operation; and
a distributor including a low pressure pipe connected between the first four-way valve and each of the indoor units, a high pressure pipe connected between the second four-way valve and each of the indoor units, and a refrigerant pipe connected between the outer heat-exchanger and each of the indoor units,
wherein the distributor is connected to the outdoor unit by the low pressure pipe, the high pressure pipe, and the refrigerant pipe.