Product Introduction
Intelligent control is one of the core advantages of ECNITY EC backward centrifugal exhaust fan. The fan integrates an advanced electronic control module that can be directly connected to Building Management Systems (BMS), enabling remote monitoring, debugging, and fault feedback without on-site manual operation. This significantly reduces maintenance and operation costs.
The EC motor includes integrated power conversion capability and can be directly connected to 115V / 220V single-phase power or 380V three-phase power, with frequency compatibility of 50/60 Hz. No additional transformer is required, simplifying installation.
Speed regulation accuracy reaches ±1%, allowing the fan to automatically adjust its operating status according to environmental parameters such as temperature, humidity, and pressure. This demand-based airflow supply helps avoid unnecessary energy consumption.
The fan also provides speed feedback signals, enabling real-time monitoring of operating speed. Additionally, a soft-start function ensures smooth startup currents, preventing sudden current surges that could impact the power grid. This makes the fan particularly suitable for commercial buildings, data centers, and other environments requiring stable power supply.
Ec backward centrifugal exhaust fan 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-B280-H093-E115-C01 |
115 |
90~135 |
50/60 |
4.00 |
450 |
2830 |
3450 |
965 |
79 |
|
EN-B280-H093-E230-C01 |
230 |
184~274 |
50/60 |
2.00 |
450 |
2830 |
3450 |
965 |
79 |
|
EN-B280-H093-E380-C01 |
380 |
310~460 |
50/60 |
1.20 |
450 |
2830 |
3450 |
965 |
79 |
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 |
||
Compared with traditional AC centrifugal fans, Ec backward centrifugal exhaust fan offer significant energy-saving benefits. The EC motor utilizes permanent magnets combined with electronic commutation technology, eliminating rotor electrical losses found in traditional AC motors. Overall system efficiency can reach up to 90%, providing 30–50% energy savings.
For example, a 500W industrial fan operating 8 hours per day can save nearly thousands of yuan in electricity costs annually, achieving a return on investment within 3–6 months.
The fan's demand-based speed control ensures that when ventilation demand decreases, the motor automatically reduces speed, minimizing energy consumption and avoiding the traditional "full-speed operation with throttling control" waste pattern.
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FAQ
1. Are EC fans suitable for industrial exhaust hoods?
EC centrifugal fans are suitable for industrial exhaust hoods. They can handle duct resistance and varying airflow demand. Speed control helps optimize exhaust performance. Correct sizing is important for safety.
2. Can EC fans be used in make-up air systems?
EC fans are used in make-up air systems to supply fresh air. Adjustable airflow supports balanced ventilation. High efficiency reduces operating costs. Integration with control systems is common.
3. Can EC fans be applied in clean air ventilation systems?
Yes, EC fans are used in clean air ventilation systems. Smooth speed control supports stable airflow. They are suitable for systems with filters. Application requirements should be clearly defined.
4. Are EC fans suitable for air filtration systems?
EC centrifugal fans are commonly used in air filtration systems. They can overcome pressure loss caused by filters. Speed can be adjusted as filter resistance increases. This helps maintain consistent airflow.