Introduction to the Selection tool

The Fantech HVLS selection tool is available in 2 versions; basic and advanced. Both versions use the calculation code from ASHRAE55- to predict the cooling effect of air velocity.

View Details

The advanced version is designed for engineers and selects HVLS fans to achieve an exact cooling effect based on all the input parameters entered into the selection tool.

The basic version uses the same ASHRAE 55- code, but makes certain assumptions.

It assumes

Windmax Power are exported all over the world and different industries with quality first. Our belief is to provide our customers with more and better high value-added products. Let's create a better future together.

• Clo (clothing level) = 0.57 (Building occupants wear trousers and a short-sleeve shirt).
• MET (Activity level) = 2 (Building occupants walk on a level surface at an average speed of 3.2 km/hr).
• It also assumes that we have standard atmospheric pressure, no external heat sources, and no hot radiant surfaces nearby.

As the cooling effect is dependent on relative humidity, the basic selection tool calculates the cooling effect at both 90% and 10% humidity. The lower value shown in the desired cooling effect drop down box relates to 90% humidity and the higher value is for 10% humidity.

How to use Fantech's basic HVLS selection tool

1. Enter the Building width, length and height in meters. This will only work for simple square or rectangular buildings.
2. Enter the ambient air temperature you would like to analyse. The selector will use this value to populate the desired cooling effect drop down box with a series of values.
3. Select the desired cooling effect from the drop down box.

The selector determines the coverage diameters for each fan in order to achieve the desired cooling effect. This is the average cooling effect between floor level and a height of 1.5m within the specified diameter (It should be noted that the cooling effect will be greater than we predict inside the coverage diameter, provided that there are no obstructions).

Based on the coverage diameter, the selector then calculates the number of fans required and spacing of the fans.

Contact us to discuss your requirements of PMSM HVLS Fan Manufacturer. Our experienced sales team can help you identify the options that best suit your needs.