| 摘要 |
PURPOSE:To enable to combine the function of dehumidifier with the function of ventilator in one unit by a structure wherein a damper, which makes an air passage to circulate the air on the indoor side, during the dehumidifying operation and makes an air passage to exhaust the indoor air outdoors during the ventilating operation. CONSTITUTION:An air passage 10, which connects to the indoor side and to the outdoor side by opening and closing a damper 9, is provided in the interior of a duct, which pierces a wall 8 and is imbedded in the wall 8. During the dehumidifying operation, the damper locates the position represented with the solid lines so as to shut off the communication between the indoor side and the outdoor side, resulting in circulating the indoor air and collecting the moisture condensed on a cooler to a water receiving tray 13 in order to drain through a drain pipe 14. On the other hand, during the ventilating operation, the damper is changed-over to the position indicated with the dotted lines and at the same time a compressor is turned OFF, resulting in exhausting the indoor air through the air passage in the duct as indicated with the dotted line arrows by the rotation of a fan. The changing-over from/to dehumidification to/from ventilation can be done by an operation changing-over switch normally. However, if the indoor humidity becomes below the set value, a humidity sensor detects and automatically changes-over from the dehumidifying operation to the ventilating operation.
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