The air duct connecting the inlet and outlet of the fire high-temperature smoke exhaust fan should be supported separately, and the weight of the duct is not allowed to be added to the fan parts. When installing the fire-fighting high-temperature smoke exhaust fan, pay attention to the horizontal position of the fan, and adjust the connection between the fan and the foundation and the air outlet pipeline to make it natural and consistent, and forced connection is not allowed. After the fan is installed, check the tightness around it, and pull the impeller by hand or lever to check whether it is too tight or friction, and whether there is anything that hinders the rotation. If there is any gap, it can be sealed with sunlight board or glass glue. The fire-fighting high-temperature smoke exhaust fan can only be put into trial operation after it is installed without any abnormal phenomena, and the exposed part of the fan transmission device should be protected. Check all parts of the fan regularly to ensure that the fan can be started and run normally at any time. The above are matters needing attention in the installation process of fire-fighting high-temperature smoke exhaust fan, and I hope it will be helpful for you to use this product. The company is willing to serve customers from all walks of life wholeheartedly with the best service quality.