Patent ID: 8413455
Filing Date: 2013-04-09
Classification: F25B

Abstract:
1. An air conditioning system, comprising: a compressor that compresses coolant; an indoor heat exchanger that receives compressed coolant from the compressor in a heating mode; an expansion member provided on an outlet side of the indoor heat exchanger to decompress coolant discharged from the indoor heat exchanger; an outdoor heat exchanger that receives coolant from the expansion member in the heating mode; a first bypass pipe that extends from a first predetermined position that is between an outlet of the compressor and an inlet of the indoor heat exchanger to an inlet side of the outdoor heat exchanger; a first valve provided on the first bypass pipe; a second bypass pipe that extends from a second predetermined position that is between an outlet of the expansion member and an inlet of the outdoor heat exchanger to an inlet side of the compressor; a second valve provided on the second bypass pipe; a third valve provided at a position between an outlet end of the first bypass pipe and an inlet end of the second bypass pipe, on a pipe connecting the expansion member to the outdoor heat exchanger; and a coolant heater provided on the second bypass pipe so as to heat coolant flowing therethrough, wherein an outlet end of the first bypass pipe is directly connected to a pipe that forms a lower portion of the outdoor heat exchanger, the lower portion of the outdoor heat exchanger defining a supercooling section.