| 摘要 |
PROBLEM TO BE SOLVED: To reduce danger of explosion or ignition, and to heighten safety by reducing the coolant quantity enclosed in a refrigerating cycle. SOLUTION: In this air conditioning device, an interior heat exchanger 50 held by an interior unit B, an exterior heat exchanger 50 held by an exterior unit A, a compressor 10, and a restriction device 40 are connected circularly through a pipe respectively, and a combustible coolant is used as the coolant, and the interior unit A and the exterior unit B are connected by using a connection pipe. In the device, the connection pipe is constituted so that the inner diameter of a liquid side connection pipe 60 is to be 42.5% or less of the inner diameter of a gas side connection pipe 70. COPYRIGHT: (C)2005,JPO&NCIPI
|
