Cooling Fan Basic Technical Knowledge and Common Problems - APAC FAN

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How to Select a Fan or Blower？

First of all, we need to clarify the purpose of the fan. Is the fan used for air ventilation, air purification, heat dissipation or other specific applications? Different uses require different types and specifications of fans.
02/02/2024
How to connect multiple fans to a single PWM interface?

As we all know, the PWM interface can adjust the fan speed, then can multiple fans be connected in parallel to one PWM interface?
03/01/2024
Will extending leads affect the performance of the cooling fan?

extending the lead will not significantly affect the normal function of the fan, but it is different for high-power fans. When the lead is lengthened, the resistance will increase, which may lead to a reduction in voltage, thereby reducing the actual operating voltage, reducing the fan speed and air volume to affect the performance of the fan, especially for some applications that require fans to work at a specific speed or maintain a specific temperature, the impact will be even greater.
03/01/2024
How to wire a capacitive fan?

We mentioned before that the capacitor fan is a type of AC fan. Because the power supply is a unidirectional AC power supply, a capacitor needs to be connected in series with the auxiliary winding. This causes a voltage phase difference between the main and auxiliary winding to generate a rotating magnetic field to drive the rotor to rotate.
02/29/2024
How to change the fan speed to 4-20mA?

The default control method for new EC fans is PWM or 0-10V speed regulation, but some customers want to use 4-20mA speed regulation.
02/29/2024
How to distinguish the anti-corrosion level of fans?

Usually, the corrosion resistant class of the fan is determined according to the corrosion resistance of its materials and coatings. Common fan corrosion resistant class include.
02/26/2024

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