Patent ID: 6772600
Filing Date: 2004-08-10
Classification: F25B

Abstract:
A multi-unit air conditioner comprising:an outdoor unit including; a flow path control valve for controlling a flow path of refrigerant from a compressor, outdoor heat exchanger having one side in communication with the flow path control valve, a first bypass pipeline having one end connected to the first pipeline which makes the flow path control valve and the outdoor heat exchanger to be in communication, and the other end connected to the second pipeline connected to the other end of the outdoor heat exchanger, and a flow rate control valve provided on the first bypass pipeline for controlling a flow rate of the refrigerant passing through the first bypass pipeline; an indoor unit having an indoor heat exchanger and indoor electronic expansion valve installed in each of rooms; a distributor for selective distribution of the refrigerant received through one of two pipelines connected to the outdoor unit to the indoor units, and returning to the outdoor unit through the other one pipeline; and controlling means for measuring a gas/liquid mixing ratio of the refrigerant introduced into the distributor, the refrigerant having joined after respectively passing through the first bypass pipeline and the outdoor heat exchanger, for controlling an opening of the flow rate control valve, to control the mixing ratio.