Installation method of roof fan and precautions

1. The installation foundation of the roof fan must be higher than the roof, and the surface should be flat to prevent water seepage and water leakage, and the anchor bolts must be embedded.2. Add a layer of 5mm rubber plate between the fan base and the foundation to reduce vibration. The anchor bolts should be equipped with a spring washer to prevent loosening during use.3. The pipe diameter of the roof fan outlet can only be larger and not smaller, and then the air outlet should be installed for insect prevention, and the wind and rain cap should be increased; in case of snow in winter, it must be moved frequently to prevent the fan outlet blocked by snow.4. The roof fan and the air duct shall be connected by the hose (flexible material and no combustion). The length should not be less than 200mm, and the pipe diameter shall be the same as the inlet and outlet size of the roof fan. To ensure that the hose does not distorted during the system operation, the tightness should be installed appropriately. For the canvas hose installed at the suction end of the roof fan, it can be installed slightly tighter, to prevent the roof fan from being inhaled when running, and to reduce the section size of the canvas hose.

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