| 摘要 |
PROBLEM TO BE SOLVED: To provide an air conditioner that can lighten the load of facilities being required for the dew condensation countermeasures of an exhaust duct. SOLUTION: This air conditioner is equipped with a first air channel AF1 that incorporates a heat pump where outdoor air and/or return air is used as a heat source, and extends from a return and opening RA to an air supplying opening SA via a third heat exchanger EX3, a second air channel AF2 that is connected to an outdoor air intake OA, and is merged with the first air channel AF1 at an upstream side as compared with the third heat exchanger EX3, and a third air channel AF3 that is connected to the outdoor air intake OA and/or the return air opening RA, divides flow without passing through the third heat exchange EX3 and is connected to an exhaust opening EA via the first heat exchange EX1. In the air-conditioner, a fourth air channel AF4 is formed between the downstream side of the first heat exchanger EX1 of the third air channel AF3 and the first air channel AF1.
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