Seoyon Electronics India Pvt Ltd, India.

Seoyon Electronics India Pvt Ltd, India.

A Case Study : Epoch 2.0 HVLS 14-ft Fan By Falco eMotors Inc.
Report No. 041420-01

Saving on Electricity

2 X

Get 2 x Airflow

<35 dBA

Lowest sound in the World

Key Facts


  • Direct Drive PMSM Motor;
  • Lowest Weight;
  • Active Power Factor Corrected;


  • Industrial


  • India.


  1. Seoyon Electronics India Pvt Ltd. - is a leading Manufacturer, Automotive Products, Smart Key Systems, Key Sets from Chennai, Tamil Nadu, India.

  2. In humid and hot climates, building operators struggle to cool down in large open spaces. Extra ventilation with temperature control is needed during the winter and summer months to provide relief to employees and fix the problem of sweating on the floor.

  3. The wall mounted fans installed there cannot provide enough air, and those fans are noisy.

  4. So the authorities there were looking for a new solution that would solve the problem of airflow and noise.


  • Epoch 2.0, 14-ft 02 Fans were installed with the following specifications ;
    • Motor: Epoch 2.0;
    • Coverage Area: 8,000 Sq. Ft. (743 Sq. m);
    • Speed: 120 RPM;
    • Peak Power: 1.1 kW/1.5 hp;
  • Epoch 2.0, 14 ft fans are most popular with amazing airflow and airflow efficiency.

Site Survey

A site survey is mandatory before any HVLS fan recommendation. The survey revealed the following dimensions:

  • Total Area: 98 Ft X 66 Ft = 6,468‬ Sq. Ft.
  • Floor to Ceiling Distance: 20 to 24 ft,
  • By a rule of thumb distance/1.5 gives us the approximate fan diameter.
  • In this case, we chose to go with a 14-ft fan.

Site Measurements

Fans and coverage area

Test Reports

Three test reports are collected for each fan installation as follows:

Power Consumption Report

Power consumption report captures the real as well as apparent power. Epoch HVLS fans are the only fans in the world to have active power factor correction and unity power factor. Therefore the Watts (Real Power) and VARs (the apparent power) are almost the same. The power has been captured at 20, 40, 60, 80, 100, and 120 RPM. Power drawn at those speeds are 414, 493, 591, 653, 690, and 775 W respectively. The chart above also shows trend lines generated using Excel for real and apparent power to take into account any measurement errors as fan power consumption can be modeled by well known equations.

Input Current Report

The input current is also measured at 20, 40, 60, 80, 100, and 120 RPM. Input current is recorded as 2, 2.4, 2.9, 3, 3.1, and 3.4 A respectively. The input voltage varied from 230 to 240V during the measurement.

Air Flow Report.

The airflow is measured from the center of the fan and is recorded at every 3-ft distance. Values were recorded upto 30-ft from the center of the fan. The values were respectively, 370, 410, 460, 500, 590, 520, 420, 380, 310, and 210 ft/min at distances of 3,6,9,12,15,18,21, 24, 27, and 30-ft respectively.

Finished Installation

This is the picture of the finished installation.