Product Introduction
The DC HVAC Centrifugal Fan is a premier air moving solution designed specifically for modern heating, ventilation, and air conditioning systems, delivering the high performance required for effective climate control. As a specialized HVAC fan, it utilizes advanced DC motor technology to provide superior energy efficiency and precise speed modulation, essential for maintaining constant airflow in variable air volume (VAV) systems. This centrifugal fan is engineered to generate high static pressure, allowing it to push air effectively through complex ductwork and filters without losing power. Functioning as a quiet ventilation fan, it reduces the acoustic footprint of air handling units, making it ideal for residential, commercial, and institutional buildings. Its robust design and intelligent control options make it the top choice for engineers seeking an energy efficient fan that optimizes thermal comfort and indoor air quality while minimizing operational costs.
DC HVAC Centrifugal Fan technical parameters:
|
Model No. |
Rated |
Operation Voltage |
Rated |
Rated |
Rated |
Air Flow |
Air |
Noise |
|
VDC |
VDC |
A |
W |
RPM |
m3/h |
Pa |
dBA |
|
|
EN-B310-H068-D024-C01 |
24 |
18~32 |
8.60 |
208 |
2050 |
2300 |
690 |
70 |
|
EN-B310-H068-D048-C01 |
48 |
36~57 |
4.30 |
208 |
2050 |
2300 |
690 |
70 |
Outline Drawing：
Performance Curve
Connection
|
DC Wire |
|
|
Color |
Function |
|
Red |
024/ 048/ 310VDC |
|
Blue |
GND |
|
Yellow |
0~10VDC/PWM |
|
White |
FG |
This outline drawing presents the technical specifications and interface points of the DC HVAC Centrifugal Fan, critical for seamless installation into air handling units and duct systems. As a core HVAC fan component, the schematic highlights the standard mounting footprints and discharge flanges, sized to fit common industry plenums, typically ranging from 200mm to 350mm. The illustration emphasizes the centrifugal fan's volute shape and inlet cones, which are aerodynamically contoured to maximize pressure development and efficiency. Detailed wiring diagrams for DC power and 0-10V/PWM control inputs are included, facilitating easy integration into building management systems. Use these precise dimensions to plan your mechanical layout, ensuring this ventilation fan aligns perfectly with coils and filters for optimal system performance.
A close-up examination of the DC HVAC Centrifugal Fan reveals the high-quality construction materials selected for longevity in demanding environments. The image focuses on the robust, corrosion-resistant impeller-often made of galvanized steel or reinforced composite-engineered to deliver stable high static pressure while resisting deformation. This HVAC fan detail highlights the sealed DC motor housing, which protects internal electronics from dust and humidity, a vital feature for maintaining the reliability of an energy efficient fan. You can also see the precision-balanced rotation assembly and vibration-dampening grommets, which work together to ensure the unit operates as a low noise fan. This detailed view confirms the fan's suitability for rigorous continuous duty, providing peace of mind for facility managers relying on consistent air handling performance.
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FAQ
Question: What is a flexible connector?
Answer: A flexible connector (or canvas connection) isolates the fan from the ductwork, preventing the transmission of vibration and noise to the building structure.
Question: Grease vs. oil bath lubrication?
Answer: Grease is for moderate speeds and simple maintenance; oil bath lubrication provides better cooling and is used for high-speed, heavy-duty fan bearings.
Question: What is critical speed?
Answer: Critical speed is the RPM at which the fan rotor's natural frequency matches the rotation, causing resonance. Fans must not operate at this speed.