Air-conditioning apparatus and method of manufacturing air-conditioning apparatus

Abstract

An air-conditioning apparatus includes: a compressor, a first heat exchanger, an expansion unit and a second heat exchanger that are connected, by a pipe, in a refrigerant circuit through which refrigerant flows, wherein the first heat exchanger includes: a radiator fin, multiple tubes extending through the radiator fin and through which the refrigerant flows, and a side plate provided at end portions of the multiple tubes, and having multiple holes formed thereon, through which the multiple tubes are extended, wherein, on the side plate, between the holes corresponding to the multiple tubes to be connected, a marking corresponding to a type of a connection member that connects the multiple tubes is provided.

1 . An air-conditioning apparatus comprising:
 a compressor, a first heat exchanger, an expansion unit and a second heat exchanger connected, by a pipe, in a refrigerant circuit through which refrigerant flows,   the first heat exchanger including   a radiator fin,   a plurality of tubes extending through the radiator fin and through which the refrigerant flows, and   a side plate provided at end portions of the plurality of tubes, and having a plurality of holes formed thereon, through which the plurality of tubes are extended,   on the side plate, between the holes corresponding to the plurality of tubes to be connected, a marking corresponding to a type of a connection member connecting the plurality of tubes being provided.   
     
     
         2 . The air-conditioning apparatus of  claim 1 , wherein
 the plurality of tubes include a hairpin tube, and   the plurality of tubes and the connection member are integrally formed.   
     
     
         3 . The air-conditioning apparatus of  claim 1 , wherein, as the connection member, a U-bent tube having a U shape is employed. 
     
     
         4 . The air-conditioning apparatus of  claim 1 , wherein, as the connection member, a three-way bent tube having a T shape is employed. 
     
     
         5 . The air-conditioning apparatus of  claim 1 , wherein,
 as the connection member, a bulge three-way tube having a non-T shape is employed, and   a marking indicating an attachment direction of the connection member is provided on the side plate.   
     
     
         6 . The air-conditioning apparatus of  claim 1 , wherein, on the side plate, the marking is provided by a marking jig. 
     
     
         7 . The air-conditioning apparatus of  claim 1 , wherein, on the side plate, the marking is provided by a writing material. 
     
     
         8 . The air-conditioning apparatus of  claim 1 , wherein, on the side plate, the marking is provided by a sticker. 
     
     
         9 . (canceled) 
     
     
         10 . A method of manufacturing an air-conditioning apparatus including a compressor, a first heat exchanger, an expansion unit and a second heat exchanger connected, by a pipe, in a refrigerant circuit through which refrigerant flows, the first heat exchanger including a radiator fin, a plurality of tubes extending through the radiator fin and through which the refrigerant flows, and a side plate provided at end portions of the plurality of tubes,
 the method comprising:   forming a plurality of holes, through which the plurality of tubes are inserted, on the side plate; and   providing, on the side plate, between the holes corresponding to the plurality of tubes to be connected, a marking corresponding to a type of a connection member connecting the plurality of tubes.