Negative pressure fans generally do not produce much noise, but noise is inevitable. This is more related to the correct operation method and the quality of the product itself. What should we do when there is noise? Here is our detailed introduction, let's take a look. Ningbo City Air Cooler, Ningbo Air Cooler

1. One of the reasons for the large noise in the operation of the negative pressure fan is the problems that occur during the installation of the device. For example, the fan installation and the window frame are too tightly contacted, so that the fan frame causes resonance of the window frame and noise.

Solution: Reduce the stuffing between the window frame and the water and air conditioner properly, and use a softer material to stuff it. If the installation bottom is not stable, the bottom plate should be stabilized and placed stably and firmly.

Second, the power supply voltage is too low, when the fan starts or runs, it produces abnormal noise and vibration.

Solution: Control the power supply voltage within the rated voltage range. Usually, a voltage regulator or a power regulator can be used to stabilize the voltage.

3. The vibration damping pad or fixing screw of the fan frame is too tight, and the vibration damping effect is lost, and the vibration sound will be generated during work.

Solution: Adjust the screw tightness of the vibration damping pad of the fan frame to make the surface of the frame flat.

Fourth, the fan installation is not good, the fan installation should be in a suspended state, and the spring of the foot bolt cannot be crushed to death.

Solution: Ask the maintenance personnel to adjust the fan installation status so that it is in a suspended state.

In short, if there is a problem with the negative pressure fan, as long as we carefully check, it will naturally check the problem. Of course, you must notify the technicians in time, under the guidance of the technicians, so as not to damage the machinery!