UNIT-VENTILATOR — Fan Units

SUNXFAN UNIT-VENTILATOR series: 2 models. All figures below are manufacturer datasheet values.

Model matrix

Model Airflow Max static pressure Voltage Power Speed Noise Speed control
CF146-650CFM-01 1100 m³/h 680 Pa 110-254 VAC 180 W 1650 r/min 56dB(A) 0-10V/PWM / 4-speed
CF160-2000CFM-01 3400 m³/h 720 Pa 110-254 VAC 360W 1950 r/min 66dB(A) 0-10V/PWM / 4-speed / Modbus RTU(RS485)

CF146-650CFM-01 — EC Rack-Mount Blower CF146-650CFM-01 — 1100 m³/h

Specifications

FAQ

Q: Why does the modern greenhouse planting industry choose EC Fan Unit components?

A: EC Fan Units reduce energy consumption and costs, enable precise climate regulation, and enhance crop yield and quality, directly addressing growers’ core demands for profitability and production stability. The adoption of EC Fan Units in modern greenhouse cultivation is driven primarily by their high energy efficiency and precise environmental control capabilities, which directly impact cultivation profitability and crop quality consistency. Compared with traditional AC fans, EC fans offer fundamental differences in energy efficiency, controllability, and reliability. Choosing an EC Fan Unit is not merely an equipment upgrade but a critical step in the transition toward refined and intelligent management in modern greenhouse cultivation.

Q: Why can selecting EC centrifugal fans significantly reduce operating costs?

A: EC fans are more energy-efficient than traditional AC fans in HVAC ventilation systems. In the HVAC industry, ventilation system energy consumption can account for 70% of total operating costs, making energy efficiency the primary economic consideration. EC fans (Electronically Commutated) utilize permanent magnet synchronous motors (PMSM) and built-in digital controllers, fundamentally eliminating brush wear, commutator losses, and slip resistance associated with traditional AC motors. This structural difference delivers significant efficiency advantages:

  1. Higher rated efficiency: EC fans can achieve efficiency above 90%, while traditional AC fans typically range between 55–70%.
  2. Substantial advantage at partial load: Greenhouse ventilation demand varies with day-night cycles and seasons, and fans operate under partial load for most of the time. Traditional AC motors experience a sharp efficiency drop to 40–55% when operating below design speed, whereas EC motors maintain high efficiency across the full speed range. In actual projects, some farms have reduced monthly electricity costs by 35% by switching to EC fan systems.

Q: How do I size classroom ventilation with this fan?

A: Start from the per-person rate: current standards ask roughly 8 l/s of fresh air per occupant. Thirty pupils plus a teacher ≈ 250 l/s ≈ 900 m³/h — this fan’s 1,100 m³/h covers it with margin, and the 680 Pa reserve keeps that airflow after the filter loads and the duct resistance grows. Sizing without margin is the classic mistake: the fan meets the class on day one with a clean filter, then quietly under-ventilates for the rest of the term.

CF160-2000CFM-01 — EC Rack-Mount Blower CF160-2000CFM-01 — 3400 m³/h

Specifications

FAQ

Q: Comparison of the pros and cons of four types of fans (Inline, Oscillating, Clip-on, Centrifugal fan) in the hydroponic growing industry?

A: Inline fans are best suited for overall exhaust in grow tents or rooms, delivering a good balance of airflow (CFM) and medium static pressure with easy installation in ductwork. However, their performance drops when facing high resistance (such as carbon filters), so they are typically connected to carbon filters and ductwork as the primary exhaust solution.

  1. Oscillating Fan: Canopy Circulation, coverage area, gentle airflow, wide coverage, breaks leaf boundary layer, simulates natural wind, dispersed airflow, cannot be used for long-distance exhaust, canopy circulation in medium to large grow spaces, prevents localized temperature and humidity imbalances.

  2. Clip-on Fan: Targeted Airflow, flexibility, adjustable airflow, compact size, flexible installation, low energy consumption; concentrated airflow, limited coverage, only suitable for localized circulation, small tents, propagation areas, mother plant areas, or as supplementary circulation in large spaces.

  3. EC Centrifugal Fan: High Static Pressure, high static pressure, extremely high static pressure, can push air through complex ductwork and filters; compact size, low power consumption, suitable for large-scale commercial cultivation, multi-layer vertical farms, long duct runs, or high-density carbon filter systems.

Q: How can Inline, Oscillating, Clip-on, and Centrifugal fans be comprehensively combined for use in retrofitting indoor growing facilities?

A: A high-performance EC Inline or EC Centrifugal Fan Unit should be used as the primary exhaust fan, responsible for air exchange throughout the entire space. Use one or more Oscillating Fans for canopy circulation to ensure all plants receive gentle airflow. Use Clip-on Fans as a supplement to address local dead zones or provide targeted airflow for specific areas. **Summary: Negative pressure control and odor management: Ensure the exhaust airflow is slightly greater than the intake airflow to maintain a slight negative pressure in the grow space, so that all air is expelled through the activated carbon filter, effectively controlling odors; Filter placement: Install the activated carbon filter on the intake side of the fan to keep the fan clean and reduce noise.

Last updated: 2026-11-02