PIPING STRUCTURE OF AIR-CONDITIONER

摘要

PURPOSE: A piping structure of an air-conditioner is provided to improve indoor appearance by improving the piping structure. CONSTITUTION: A second tube(12) connecting an outdoor unit and an indoor unit, and guiding gaseous fluid is branched into at least two tubes to reduce size of protrusion of a tube cover(13) placed on an indoor side. The second tube guiding gaseous fluid and placed on the indoor side is branched into at least two tubes, and the second tube placed on an outdoor side is formed to be single. A tube distributor is placed between the branched tubes and the single tube to merge the branched tubes. Diameter of the branched tube is same with or smaller than diameter of a first tube(11) built in the tube cover and guiding liquefied fluid. An indoor unit and the tube cover of a ceiling type air conditioner are attached on a ceiling. The first tube guiding liquefied fluid and the branched second tube are covered by the tube cover and supported on a surface of the ceiling. Indoor appearance is improved as protrusion of the tube cover is reduced thereby.