What does HVLS mean ? 

HVLS stands for H igh V olume L ow S peed = High volume at low speed!

HVLS fans are used in large industrial and commercial halls. The slow speed, which can be adjusted automatically using temperature sensors or individually using the speed setting using frequency-controlled motors, creates a gentle air movement and generates a pleasant breeze.

HVLS fans are an inexpensive, efficient and effective solution for air conditioning large rooms and halls.

There are various HVLS systems on the market and all of them fulfill the functions of a fan.

Air is circulated and moved.

However, you should pay attention to the details, such as:

Type of control, number of blades, bottom air jet, area covered, operating range, speed, noise emission, blade size and blade design.

What are the differences:

2 wings: very high speed, helicopter thrust, very steep wing angle of attack, high noise emissions
3 wings: very high speed, steep wing angle of attack, high noise emissions
4 wings: high speed, steep wing angle of attack, sometimes high noise emissions
5 wings: medium speed, slightly steep wing angle of attack, moderate noise emissions
6 wings: low speed, slight angle of attack, low noise emissions (<45 dBA)
8 wings: low speed, slight angle of attack, very low noise emissions (<35 dBA)

Clear advantages and increased safety when choosing a Rotasystem Profan HVLS fan

• Rotasystem HVLS fans are CE-compliant and tested for the highest safety standards
• Large-volume rotor blades with stiffened aerodynamic shape move a large volume of air at very low speed (see comparison)
• Patented triple safety device increases operational safety. Foot fastening, wire rope safety and hub breakage protection
• HVLS controls:
• • Frequency-controlled speed control (standard)
  • Radio remote control start/stop (option)
  • Touchscreen, automatic temperature control (option)
  • Touchscreen, automatic temperature compensation control, summer-winter function, weekly timer (option)
  • Remote control via mobile phone or tablet via CMI (option)

Use of existing resources. The summer / winter operation allows an energetically favorable and extremely economic climatic regulation. In summer, large air masses are moved down during normal operation. By controlling the speed of rotation, warm pent-up air is gently guided from the ceiling to the ground in winter (destratification).