Multi type air-conditioner and control method thereof

Abstract

A multi type air-conditioner comprises: an outdoor unit having outdoor heat exchangers heat-exchanged with outdoor air and a compressor for compressing a refrigerant; indoor units for performing either cooling or heating; a high pressure pipe connected between a discharge side of the compressor and the indoor units; a low pressure pipe connected between a suction side of the compressor and the indoor units; and a refrigerant exhauster provided between the high pressure pipe and the low pressure pipe, for discharging a liquid refrigerant to the low pressure pipe when the liquid refrigerant is accumulated in the high pressure pipe, whereby degradation of cooling capability due to a lack of refrigerant can be prevented by minimizing accumulation of the liquid refrigerant in the high pressure pipe in a cooling operation mode.

Dependencies are inferred from the claim text.