Frequently Asked Questions about Fans and Motors
The following instructions are for preliminary selection and communication. When it comes to specific wiring, size and performance, please refer to the confirmation information of the corresponding model.
Can the fan, motor or impeller be purchased separately?
You can contact Aili Industrial to explain the required parts and usage. Independent components need to be evaluated based on conditions such as shaft end, fixation method, load, power supply and drive, and can also be matched with the controller and installation structure.
Are all EC fans connected to low voltage DC?
EC describes the electronic commutation method, and the input power depends on the specific drive configuration. The samples listed on this page are 220V, 50Hz. The wiring should be confirmed according to the corresponding model information. You cannot judge based on the name 'DC' or 'EC' alone.
If the model suffix is different, will it affect replacement?
May correspond to motor, speed, power, drive or other configuration changes. When replacing, it is recommended to use complete model identification and judge based on curves, installation diagrams and interface data. Do not just compare series names such as EC143 and EC315.
Can the air volume and pressure on the fan sample be reached at the same time?
It depends on whether they belong to the same working point on the same curve. The maximum air volume and maximum pressure usually correspond to different states, and the model should be selected based on the corresponding pressure under the target air volume and actual test conditions.
Will the air volume necessarily increase if I switch to a more powerful motor?
The air volume also depends on the impeller, rotation speed, air path and system resistance. After changing the motor or drive, you need to re-evaluate the connection structure, working point and operating status. You cannot judge based on the power alone.
Can PWM, 0–10V or RS485 interfaces be used?
You can explain the signal and operation requirements of the main equipment to Aili Industrial, and we will evaluate the controller and wiring harness according to the specific model. Signal voltage, PWM frequency, communication protocol, terminal definition and feedback logic need to be confirmed separately and are not uniformly standard for all models.
The connectors have the same appearance, can they be directly connected to the original controller?
Electrical definitions and control logic need to be checked. Pins, signal levels, protocols, power and loss of signal status may be different, and the same connector appearance does not mean direct compatibility.
I already have a fan but do not have a complete model number. How can I inquire about replacement?
You can first send photos of the label, appearance, installation location and wiring, and describe the current usage. If you don’t have these information, you can contact us first and Aili Industrial will help sort out the conditions you need to know later.
How to obtain fan curves and installation drawings?
Contact Aili Industrial to explain the proposed series or equipment usage. We will provide corresponding information based on the specific configuration and confirm the model suffix, curve conditions, installation interface and wiring version. WeChat 905745196, email nancy@ailigy.com .
Can Aili Industrial cooperate with non-standard design of equipment?
The evaluation can be carried out based on the working point, installation space, air path, power supply and control requirements. Motor, fan, control, filter and structural personnel can participate together to discuss samples, trial assembly and batch matching as needed.
Can I contact you if I don’t have drawings, parameters or technical information?
sure. Just talk about where the equipment is used, the actual environment and the problems you want to solve. Aili Industry will combine its rich R&D and manufacturing experience to help sort out power configuration and interface requirements, and assist in selection and design.
What conditions are needed to compare the energy consumption of two types of fans?
The electrical input power should be compared under the same target air volume, pressure caliber and corresponding operating conditions, and the speed adjustment method and operating period should be considered. Nameplate power or no-load status cannot alone represent the power consumption of the equipment during use.