HP Pelzer Automotive Pvt Ltd, India.

HP Pelzer Automotive Pvt Ltd, India.

A Case Study Epoch HVLS 20-ft Fan By Falco eMotors Inc.

Report No. 040620-04

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. HP Pelzer Automotive Pvt. Ltd. - Manufacturer of car parcel shelf, car floor insulation rear and car boot floor cover Pune, Maharashtra.
  2. In the summer there is heat in the Chakan area, with no movement of air, the workers feel uncomfortable.
  3. As the machine is working for 24 hours, the heat rises, the cooler and stand fans occupy the floor space, thus affects profit of the company.
  4. The industry is looking for the best option, which provides enough airflow to reduce heat and prevent operator discomfort. They found another way that the use of HVLS fans in the workshop could improve productivity.


  • Epoch 2.0, 20-ft Fan was installed with the following specifications ;
    • Motor: Epoch 2.0;
    • Coverage Area: 18,000 Sq. Ft. (1,672 Sq. m);
    • Speed: 60 RPM;
    • Peak Power: 1.1 kW/1.5 hp;
  • Epoch 2.0, 20 ft Fan is one of our most popular fans 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: 82 Ft X 49 Ft = 4,018‬ Sq. Ft.
  • Floor to Ceiling Distance: 30 to 32 ft,
  • By a rule of thumb distance/1.5 gives us the approximate fan diameter.
  • In this case, we chose to go with a 20-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, 30, 40, 50, and 60 RPM. Power drawn at those speeds are 360, 440, 597, 765, and 970 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, 30, 40, 50, and 60 RPM. Input current is recorded as 0.76, 1.2, 2.4, 3.8, and 4.7 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, 220, 260, 390, 452, 480, 550, 460, 380, 260, and 240 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.