& nbsp;     installsuction fan The wall on this side of the fan must be properly sealed. Especially there should be no gaps around the fan. The ideal method for installing a negative pressure fan is to close all the walls and nearby doors and windows on the fan side, and open the doors and windows on the opposite wall to ensure that the airflow flows in a straight line.  The installation of negative pressure fans is a very important project, which has a significant impact on the future use of negative pressure fans. Attention must be paid throughout the entire installation process.

 & nbsp;     Before installation  1. Before installing the negative pressure fan, it is necessary to carefully check whether the fan is intact and undamaged, whether the bolts of each fastener are loose or detached, and whether the impeller collides with the fan cover. Carefully inspect the fan blades or louvers for any deformation or damage during transportation.  2. When selecting the air outlet environment for installation, it should be noted that there should not be too many obstacles within 2.5-3 meters opposite the air outlet.  During installation  1. Stable installation: When installing the negative pressure fan, attention should be paid to the horizontal position of the fan and adjusted to ensure that the negative pressure fan is level and stable with the foundation plane. After installation, the motor must not tilt.  2. When installing the negative pressure fan, the adjusting bolt of the motor should be in a convenient position for operation. For easy adjustment of belt tension during use.  3. When installing the negative pressure fan bracket, it is necessary to ensure that the bracket is level and stable with the foundation plane. If necessary, install angle iron next to the negative pressure fan for further reinforcement.  4. After the installation of the negative pressure fan, the sealing around it should be checked. If there is a gap, it can be sealed with a polycarbonate sheet or glass glue.

 & nbsp;     After installation  1. After installation, check if there are any forgotten tools or debris inside the negative pressure fan. Use your hand or lever to turn the fan blades and check for any tightness or rubbing, as well as any obstructions or abnormalities that may hinder rotation. Only then can you proceed with the trial operation.  2. If there is vibration of the negative pressure fan or abnormal buzzing sound of the motor or other abnormal phenomena during operation, the machine should be stopped for inspection and repaired before restarting for use.