Max Warehouse Pvt Ltd, India.

Max Warehouse Pvt Ltd, India.

A Case Study : Epoch HVLS 24-ft Fan By Falco EMotors Inc.
Report No. 041620-01

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. The warehouse with a large sized area had a roof height of 9-10 meters with low level of insulation, as well as no window openings.

  2. Many things happen in this warehouse during the day shift, when the ambient temperature is already high in summer, it only adds to the heat to the inner surrounding.

  3. Employees working in warehouses, gets fresh air only with ventilation of the roof during the intense heat of summer. Heat stress makes employees feel uncomfortable, which reduces their productivity.

  4. Overheating in the summer was a major concern for the facility manager as employee satisfaction was a major concern for him.

  5. Max Warehouse installed the Epoch 3.0 24 feet diameter HVLS energy-saving fan to overcome all these issues


  • Epoch 3.0, 24-ft 02 Fans were installed with the following specifications ;
    • Motor: Epoch 3.0;
    • Coverage Area: 30,000 Sq. Ft. (2,787 Sq. m);
    • Speed: 62 RPM;
    • Peak Power: 1.5 kW/2 hp;
  • Epoch 3.0, 24 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: 184 Ft X 105 Ft = 19,320‬ Sq. ft.
  • Floor to Ceiling Distance: 35 to 40 ft,
  • By a rule of thumb distance/1.5 gives us the approximate fan diameter.
  • In this case, we chose to go with a 24-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 12, 22, 32, 42, 52 and 62 RPM. Power drawn at those speeds are 80, 118, 198, 390, 720, 1060 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 12, 22, 32, 42, 52 and 62 RPM. Input current is recorded as 0.41, 0.62, 0.87, 1.96, 3.98, and 4.9 A respectively. The input voltage varied from 230 to 240 V 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 48-ft from the center of the fan. The values were respectively, 290, 310, 420, 485, 559, 543, 510, 592, 498, 480, 400, 430, 390, 390, 310, and 220 ft/min at distances of 3,6,9,12,15,18,21, 24, 27, 30, 33, 36, 39, 42, 45, and 48-ft respectively.

Finished Installation

This is the Photo of the finished installation.