Patent ID: 6755038
Filing Date: 2004-06-29
Classification: F25B

Abstract:
A multi-unit air conditioner comprising:an outdoor unit including; an accumulator, a plurality of compressors and outdoor heat exchangers connected with an outdoor unit piping system, a plurality of outdoor fans for respectively cooling the outdoor heat exchangers, a four way valve and a plurality of control valves mounted on the outdoor unit piping system for controlling refrigerant flow; a plurality of indoor units respectively installed in rooms each having an indoor heat exchanger and an electronic expansion valve; a distributor including a gas-liquid separator for separating refrigerant received from the outdoor unit into gas refrigerant and liquid refrigerant, or mixing refrigerant received from the indoor units, and a distribution piping system for guiding the refrigerant from the outdoor unit toward the indoor units and the refrigerant from the indoor units to the outdoor unit again; and control means for controlling rotation speeds of the outdoor fans, to control a gas/liquid refrigerant mixing ratio introduced into the gas-liquid separator through the outdoor heat exchangers.