The difference between EC FFU and AC FFU
FFU (Fan Filter Unit) is a common air filter device used in cleanrooms. In this article, Vietnam Cleanroom Equipment would like to present a discussion differentiating the various types of fan motors in FFUs, aiming to help distinguish the differences and advantages and disadvantages of these FFU types used in cleanrooms.
FFU is a common air filtration device in cleanrooms, and its most critical component is the motor. To understand and distinguish between various FFU types, it's essential to comprehend the operational principles of different motor types. In this article, Vietnam Cleanroom Equipment would like to present a discussion on differentiating the various motor types and thereby distinguishing the differences, advantages, and disadvantages of EC FFU and AC FFU used in cleanrooms.
Difference Types of FFU Motors
Motors are categorized into three types: AC, DC, and EC; based on different control methods. AC motors (Alternating Current) are motors that operate at the frequency of the AC power source and require AC input. AC motors only have three speed levels: high, medium, and low. A frequency converter is needed to adjust the frequency if necessary.
DC motors (Direct Current) are motors that operate with variable DC voltage and require an external converter to convert AC to DC. They are typically used with voltages like 12V, 24V, 310V, etc.
EC motors (Electrical Commutation) are brushless DC motors that operate with AC input. They incorporate intelligent control modules, convert AC to DC, and can adjust their speed based on the environmental temperature. They are energy-efficient.
The Difference Between AC, DC, and EC Motors
AC motors have a simple structure, low production costs, and widespread applications. Compared to DC motors, they are easier to maintain and control, but they have higher power consumption and produce more noise.
DC motors have good starting characteristics and speed control capabilities. They are energy-efficient and environmentally friendly compared to AC motors. However, they require a DC power source and may emit high levels of electromagnetic radiation.
EC motors are highly intelligent, energy-efficient, with high performance and longevity. They exhibit low vibration and low noise levels, offering clear advantages in energy savings and noise reduction. However, they have relatively higher production costs and complex maintenance requirements.
For these three types of motors, AC and EC use alternating current, while DC requires an additional converter to transform alternating current into direct current.
So what is FFU?
The full name of FFU is Fan Filter Unit, also known as "bộ lọc quạt" in Vietnamese. FFU is an end-of-line air filtration device with its own power source and independent filtering function. This means that FFU can be independently connected to a power source to create an air filtration system that generates a clean environment.
Read more: 9 Basic Components Of Fan Filter Unit (FFU) For Clean Room
Classification of FFUs used in cleanrooms:
FFU Fan Filter Units used in cleanrooms are typically classified based on two motor control methods: AC motors and EC motors. FFUs using AC motors are commonly abbreviated as AC FFUs, while FFUs using EC motors are often referred to as EC FFUs.
The Difference Between EC FFU and AC FFU
In relative terms, EC FFU motors have better performance, energy efficiency, reduced noise levels in cleanrooms, and smart control. However, they come with higher production costs and a higher price tag.
AC FFU: Because AC motors are relatively rudimentary, they generate significant noise during operation and have complex controls. Their optimization lies in lower production costs, making AC FFUs relatively affordable. Control power supplies used to manage proportional valves, pressure differential bypass valves, temperature and humidity sensors, and differential pressure switches in cleanrooms are often 24V Siemens power supplies.
Choosing a Brand of FFU in the Vietnamese Market
When selecting an FFU, first consider the frame and fan materials. FFU equipment manufacturers like VCR Cleanroom Equipment can provide customized FFUs based on customer-specified materials and sizes. Our message to customers: Pay attention to the noise generated by FFUs and how power sources are wired when using them, as improper wiring can lead to issues.
Vietnam Cleanroom Equipment is a professional manufacturer and distributor of FFUs (Fan Filter Units) in large quantities. Our main products include cleanroom, air filtration equipment, cleanroom workbenches, high-efficiency filter, pressure gauge, interlock systems, and more. Our products are known for their low energy consumption, high efficiency, attractive appearance, and durability!
