| 摘要 |
PURPOSE:To increase dust removing effect and make disassembling and assembling at the time of cleaning easier by making the meshes of a net disposed on the room side a heat exchanger denser at the exhaust port side than at the feed port side. CONSTITUTION:A heat exchanger 12 is supported rotatably on an element shaft 16 provided for a frame 14. Since air in the room is sucked on an exhaust port 11 side, dust in the room air is liable to enter the heat exchanger 12, therefore, the honeycomb net of a net 18 at the exhaust port 11 side is made into a double layer one compared with a single layer one at the feed port 10 side to increase dust removing effect. A grill 15 is attached to the frame 14 detachably via clicks and the net 18 is fixed by engaging the 8-figure shaped holes 20 of the net 18 with projections 19 made on the back face of the grill 15. By so doing, disassembling and cleaning can be carried out easily. |
