| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To accurately determine the amount of a refrigerant filled in a refrigerant circuit when filling the refrigerant circuit with the refrigerant, in an air conditioner having a plurality of heat source units. <P>SOLUTION: The air conditioner 100 has a first outdoor unit 1a including a first outdoor heat exchanger 4a and a first compressor 8a for adjusting a first overcooling degree on the exit side of the first outdoor heat exchanger 4a; a second outdoor unit 1b including a second outdoor heat exchanger 4b and a second compressor 8b for adjusting a second overcooling degree on the exit side of the second outdoor heat exchanger 4b; a first outdoor-side determination section 62a for determining the first overcooling degree; a second outdoor-side determination section 62b for determining the second overcooling degree; and outdoor-side control sections 68a, 68b for controlling a first outdoor expansion valve 3a and a second outdoor expansion valve 3b so that a difference between the first and second overcooling degrees becomes small when a main refrigerant circuit 10 is filled with a refrigerant. The outdoor-side control sections 68a, 68b determine the amount of the refrigerant inside the main refrigerant circuit 10 based on either one of the first overcooling degree or the second overcooling degree. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
