Today I will introduce to you how to install our negative pressure fan. 

   When installing the negative pressure fan, the wall on this side of the fan must be sealed. Especially around the fan can not have a gap. The best way to install a negative pressure fan is to close the wall on this side of the fan and the nearby doors and Windows, and open the doors and Windows on the wall opposite the fan to ensure that the air flows in a straight line. The installation of negative pressure fan is a very important project, which has a great impact on the use effect of negative pressure fan in the future. Attention must be paid to it in the whole process of installation. 

 1. Before installation 1. Before installing the negative pressure fan, carefully check whether the negative pressure fan is intact, whether the fastener bolts are loose or fall off, and whether the impeller collids with the wind hood. Carefully check whether the fan blade or louver is deformed or damaged during transportation. 

 2. When selecting the air outlet environment for installation, it should be noted that there should not be too large obstacles within 2.5-3M opposite the air outlet. 

 1. Stable installation: When installing the negative pressure fan, pay attention to the horizontal position of the fan and adjust it to the level of the negative pressure fan and the foundation plane. The motor shall not tilt after installation.

 2. When installing the negative pressure fan, the adjusting bolt of the motor should be in a convenient position. To facilitate the use of adjusting belt tightness. 

 3. When installing the support of the negative pressure fan, it is necessary to make the support stable and level with the foundation plane. If necessary, the Angle iron is installed beside the negative pressure fan for reinforcement. 

 4. After the installation of the negative pressure fan, it is necessary to check the tightness around it. If there is a gap, the sun can be used to seal or glass glue. 

1. After installation 1. After installation, check whether tools and debris are left inside the negative pressure fan. Move the fan blade by hand or lever to check whether there is too tight or rubbing phenomenon, and whether there is no abnormal phenomenon of objects that prevent rotation, before the test run. 2. If there is vibration of negative pressure fan or abnormal sound of "buzz" or other abnormal phenomena in operation, the machine should be shut down for inspection, and the machine should be turned on and used after repair.