| 摘要 |
PROBLEM TO BE SOLVED: To provide an air conditioner in which pressure loss is reduced at heating operation and sub-cool can be taken easily at cooling operation by arranging the refrigerant channels of an outdoor heat exchanger vertically in multistage and in two front and rear rows with respect to an air flow being generated as an outdoor fan rotates and arranging a lager number of refrigerant channels on the lee side than on the windward side. SOLUTION: A compressor, a four-way valve, an outdoor heat exchanger 3, an expansion valve, and an indoor heat exchanger are coupled sequentially through piping to form a refrigerant circuit wherein the outdoor heat exchanger 3 comprises a plurality of refrigerant channels 3a, 3b, 3c, 3d, 3e, 3f. In such an air conditioner, the plurality of refrigerant channels 3a, 3b, 3c, 3d, 3e, 3f of the outdoor heat exchanger 3 are arranged vertically in multistage and in two rows such that a larger number of refrigerant channels are arranged on the inlet side 3a1, 3b1, 3c1, 3d1 than on the outlet side 3e1, 3f1 at cooling operation.
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