| 摘要 |
PROBLEM TO BE SOLVED: To prevent corrosion of an aluminum bracket for attaching an aluminum heat exchanger.SOLUTION: An aluminum bracket 40 is fastened by an iron male screw 80 and an iron attachment plate 70 jointly, and affixed to a blower chamber-side side plate 23 made of a steel plate. The outer diameter of the male screw 80 is smaller than the dimensions of a through-hole 43a in the bracket 40. The aluminum bracket 40 is fastened to the blower chamber-side side plate 23 through a resin cover 60, and the aluminum bracket 40 is maintained by the resin cover 60 in a noncontact state of not contacting the iron male screw 80 which passes through the through-hole 43a of an attachment part 43. |
