1. Selection of exhaust fans 1. When installed directly on the hole in the wall to discharge indoor dirty air to the outdoors or to suck in fresh air from the outdoors, a louvered ventilation fan should be used, so the louvered ventilation fan is also called Partition wall ventilation fan. 2. When it is necessary to install on glass doors and windows in homes, shopping malls, hotels, offices and entertainment venues, window-type ventilation fans should be used. 3. When the place where a ventilation fan needs to be installed has a ceiling, and there is an air outlet on the ceiling that directly discharges to the outside, a ceiling-type or duct-type ventilation fan can be used. 4. When the exhaust fan is installed on a ceiling and the ceiling is pre-installed with a pipe to the outside, a ducted ventilation fan should be used to use its higher wind pressure to exhaust the air. 2. Exhaust fan installation 1. Before installing the exhaust fan: Before installing the fan, carefully check whether the fan is intact, whether the fastener bolts are loose or fallen off, and whether the impeller has collided with the windshield. Carefully check whether the fan blades or louvers have been deformed or damaged during transportation; when selecting the air outlet environment for installation, be careful not to have any large obstacles within 2.5-3M of the air outlet. 2. When installing the exhaust fan: Install smoothly: When installing the fan, pay attention to the horizontal position of the fan, and adjust it until the fan is level and stable with the foundation plane. The motor should not be tilted after installation; when installing the fan, the adjusting bolts of the motor should be in a position that is convenient for operation. position. Adjust the belt tightness for ease of use; when installing the fan bracket, be sure to make the bracket level and stable with the foundation plane. If necessary, install an angle iron next to the fan for reinforcement; after the fan is installed, the sealing around it must be inspected examine. If there are gaps, use solar panels or glass glue to seal them. 3. The installation of the exhaust fan is completed: After the installation is completed, check whether there are any tools and debris left inside the fan. Move the fan blades with your hand or lever to check whether there is any excessive tightness or friction, and whether there are any objects that hinder the rotation. Only if there are no abnormal phenomena can the test run be carried out; if the fan vibrates or the motor makes an abnormal "buzzing" sound or other abnormal phenomena during operation, the machine should be stopped for inspection and should be repaired before being turned on again. 3. Precautions for installing the exhaust fan 1. Try to be as close as possible to the original air duct outlet and comply with the principle of shortest pipeline. 2. Try to be as close as possible to the location where odor or moisture is likely to occur. This is in line with the principle of highest efficiency. 3. It should not be installed directly above the shower area, otherwise airflow will be generated which will make the body feel uncomfortable, and when the temperature is low, the heat loss will be large. 4. Combine the ceiling shape, partitioning, lighting, etc., and give unified consideration to the aesthetics. Editor's summary: The above is the relevant knowledge that the editor has provided you today. If you don't know how to install an exhaust fan, you can refer to this article accordingly. I hope it will be helpful to you. Recommended reading of related articles: Bathroom exhaust fan size and installation method Bathroom exhaust fan power size and purchasing tips