| 摘要 |
An energy recovery ventilation is provided to reduce space limitation due to increase in size and weight and to facilitate installation work by mounting a detachable bypass device on an outer periphery of a duct. An energy recovery ventilation comprises a duct(101), a heat exchanger(130), and a bypass device(200). The duct is divided into a supply air duct(110) allowing outside air to flow into an indoor space, and an exhaust air duct(120), which crosses with the supply air duct, allowing inside air to flow out. The heat exchanger is disposed on an intersection of the supply air duct and the exhaust air duct, wherein a plurality of supply air paths and a plurality of exhaust air paths are disposed adjacent to each other, and performs heat exchange with the air inside the supply air path and exhaust air path. The bypass device, which is provided on an outer periphery of the duct to connect the supply air duct and exhaust air duct, is detachable from the duct. The bypass device comprises a bypass pipe(201) detachably mounted in holes on the outer periphery of the duct and connecting the supply air duct to the exhaust air duct, and a damper(203) provided inside the bypass pipe to communicate or block the bypass pipe by driving of a motor.
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