Patent ID: 9506700
Filing Date: 2016-11-29
CPC Classification: F24F,F25B,F28D,F28F

Claim Text:
1. An air-conditioning apparatus comprising: an outdoor unit equipped with an outdoor-side heat exchanger formed by inserting a plurality of heat transfer pipes made of a metal material including at least one of aluminum and an aluminum alloy into a plurality of fins; and an indoor unit equipped with an indoor-side heat exchanger formed by inserting a plurality of heat transfer pipes made of a metal material including at least one of aluminum and an aluminum alloy into a plurality of fins, wherein the heat transfer pipes in the outdoor-side heat exchanger are each internally provided with a plurality of straight grooves parallel to a pipe axial direction, and the heat transfer pipes in the indoor-side heat exchanger are each internally provided with a plurality of spiral grooves having a lead angle.