Unit sizes

Benefits of – Quadratair- Air Handling Units

  • Total flexibility in the selection of equipment, due to modular design and a full range of sizes.
  • Possibility of selection of any configuration, due to the many dimensions by combining the 38 sizes of units.
  • Multiple applications, flow rates from 1000 to 100,000 m3 / h, with the possibility for each nominal flow always to exist an average of 2 or 3 combinations of sizes of units.
  • Easy installation due to the adaptability of component modules. AHU can be produced and delivery by units, that are then assembled depending on transport options and the access of any type of building.
  • Low power consumption and reduced risk of condensation due to the quality of thermal insulation panels and tightness carcasses. The panels used are 25mm, 50mm and 60mm, the “sandwich” insulated with polyurethane foam density 47 kg / m 3, or mineral wool insulation panels with 25mm thickness and density of 120 kg / m 3, and for 50mm and 60mm thickness with a density of 80 kg / m3.
  • Checking and effective maintenance through quick and easy accessibility of all parts. Thanks to the superior construction, interior surfaces have a high quality housing is flat and smooth. Profiles inside the fitting and functionality assemblies are designed to ensure efficiency and reliability.


  • Specific structure of aluminum
  • Accessories: Al. corner. or synthetic material: nylon.
  • Special system ensure maximum safety and efficiency through a simple and fast assembly


  • 2 types of insulation panels: mineral wool or polyurethane foam
  • Thickness: 25mm, 50mm, 60mm.
  • Panels "sandwich type": insulation foam density 47 kg/m3
  • Panels of mineral wool insulation: 25mm (120 kg/m3), 50mm si 60 mm (80 kg/m3)


  • Fans "plug-in" type: Axial, centrifugal.
  • Direct or belt driven fans.
  • High performance, low energy consumption, compact construction
  • Motor insulation class F, protection class IP55
  • High control flow and simple electrical connection

Heat Exchangers

  • Cooling and/or Heating
  • Exchangers of copper (Cu), with aluminum (Al) fins
  • Anodized frame (Zn) or Stainless Steel (Inox),copper (Cu), or aluminum (Al)

Energy recovery exchangers

  • Energy recovery types: plate, rotary
  • Efficiency up to 90%


  • Primary filtration
  • Fine filtration
  • HEPA filtration