| 摘要 |
<p>PROBLEM TO BE SOLVED: To eliminate inconvenience that in a heat exchanger unit possessing a structure where an exhaust outlet is opened in a bottom plate 10a of a casing 10 to discharge drain, drain is scattered in the casing 10 and in a duct connected. SOLUTION: A heat exchanger unit includes a heat exchange element 11, a casing 10, and a drain box 26. The casing 10 accommodates the heat exchange element 11, in which there are formed an air feed passage and an air exhaust passage. A first circular hole 25 is provided in the bottom plate 10a of the casing 10. The drain box 26 is mounted so as to cover the first circular hole 25 from a lower portion, and includes a second circular hole at its lower portion. The drain box 26 discharges drain D flowing in from the first circular hole 25 in the casing 10 through the second circular hole.</p> |
