Product Introduction
ECNITY EC centrifugal fan backward curved exhibit lower noise levels due to optimized blade geometry and smooth airflow guidance within the housing. The motor's integrated electronics eliminate the need for external frequency converters, simplifying system design and improving overall reliability. With built-in protections such as thermal monitoring and soft start functionality, these fans are designed for long-term, maintenance-friendly operation in continuous-duty environments.
EC Centrifugal Fan Backward Curved Technical Parameters:
|
Model No. |
Rated |
Operation Voltage |
Frequency |
Rated |
Rated Power |
Rated |
Air Flow |
Air |
Noise |
|
VAC |
VAC |
Hz |
A |
W |
RPM |
m3/h |
Pa |
dBA |
|
|
EN-B225-H063-E115-A01 |
115 |
90~135 |
50/60 |
1.50 |
100 |
2600 |
1130 |
425 |
67 |
|
EN-B225-H063-E230-A01 |
230 |
184~274 |
50/60 |
0.75 |
100 |
2600 |
1130 |
425 |
67 |
Outline Drawing
Performance Curve
Connection
|
DC Wire |
AC Wire |
||
|
Color |
Function |
Color |
Function |
|
Red |
+10VDC |
Brown |
L |
|
Blue |
GND |
Blue |
N |
|
Yellow |
0~10VDC/PWM |
Green/Yellow |
PE |
|
White |
FG |
||
EC centrifugal fans backward curved are widely used in industrial, commercial, and HVAC applications where efficiency and reliability are essential. Typical applications include air handling units (AHUs), ventilation and exhaust systems, cleanrooms, heat recovery units, commercial kitchens, laboratories, and equipment cooling systems. Their ability to maintain stable airflow under high pressure makes them especially suitable for centralized and ducted ventilation systems.
The EC motor provides continuously variable speed control, allowing the fan to operate precisely at the required performance point. This results in reduced energy consumption during partial load operation, which is common in real-world ventilation systems. Compared to fixed-speed AC fans, EC centrifugal fans can achieve energy savings of up to 30–50%, depending on the application.
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FAQ
1. How does duct design affect EC fan performance?
Duct design directly influences airflow and pressure loss. Poorly designed ducts can reduce system efficiency. EC fans adjust speed to compensate for changes, but optimal duct design is still important. Proper layout helps achieve stable performance.
2 Can EC fans be used with filters or heat exchangers?
Yes, EC centrifugal fans are commonly used with filters and heat exchangers. These components increase system resistance. EC fans can adapt speed to maintain required airflow. Proper selection ensures stable operation under added load.
3.What role do performance curves play in EC fan selection?
Performance curves show the relationship between airflow, pressure, and power consumption. They help determine whether a fan meets system requirements. Using curves prevents under- or over-sizing. This is essential for efficient system design.
4.Are EC fans suitable for noise-sensitive environments?
EC fans can operate at reduced speeds, which helps lower noise levels. Smooth electronic control reduces vibration. Acoustic performance depends on installation and system design. Noise-sensitive applications should consider proper mounting and insulation.
5. Can EC centrifugal fans handle fluctuating system demand?
Yes, EC centrifugal fans are ideal for systems with fluctuating demand. Speed adjusts automatically based on control signals. This allows airflow to match real-time requirements. Energy consumption is reduced during low-demand periods.
6 What materials are commonly used in EC fan housings?
EC fan housings are typically made from steel, aluminum, or coated metal. Material selection depends on application and environment. Corrosion resistance may be required in certain conditions. Housing design affects durability and performance.