| 摘要 |
PROBLEM TO BE SOLVED: To maintain comfortableness by suppressing the drop of condensation pressure and preventing the drop of the temperature of the air blown out of an indoor unit, at heating operation. SOLUTION: This air conditioner is equipped with the first bypass circuit BP1 whose one end is made a connection between an indoor heat exchanger 5 and a four-way valve 2, and whose other end is made a connection between a refrigerant distributor 7 and a plurality of system pipes constituting an outdoor heat exchanger 3, and which has a branch pipe being branched, according to the number of system pipes i (i=1-4), and a pressure reducing device for bypass, between both connections, and besides has a plurality of two-way valves DVi (i=1-4) installed in the branch pipe, and this is provided with the first controller CN1 which opens the two-way valve DVi (i=1-4) for switching when the temperature TPi (i=1-4) of the system pipe detected by the system pipe temperature detection means 8 is at or under the specified temperature T1 at heating operation, and closes the two-way valve DVi (i=1-4) for switching when the temperature TPi (i=1-4) of the system pipe is at or above the specified temperature T1.
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