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CoolStream A evaporative cooling and ventilation system with heat reclaim

CoolStream A provides low-cost evaporative cooling (adiabatic cooling) and ventilation principally for larger industrial and commercial premises. It has been hygienically tested and certified to VDI 6022.

The CoolStream A evaporative cooler helps keep larger internal spaces pleasantly cool all year round. It doesn’t need to cost the earth: using the cooling power of water, it’s possible to achieve low energy cooling.

Types (airflows shown without filters)

  • 12A: Axial up to 3.3 m³/s (12,000 m³/h)
  • 12C: Centrifugal up to 3.3 m³/s (12,000 m³/h)
  • 16C: Centrifugal up to 3.6 m³/s (13,000 m³/h)
  • 17A: Axial up to 4.7 m³/s (17,000 m³/h)
  • 22A: Axial up to 6.1 m³/s (22,000 m³/h)
  • 23C: Centrifugal up to 6.4 m³/s (23,000 m³/h)
  • 29C: Centrifugal up to 8.1 m³/s (29,000 m³/h)
  • 30A: Axial up to 8.3 m³/s (30,000 m³/h)

Connection options

  • Bottom duct connection -  where unit is installed onto the roof
  • Side duct connection  - where unit is combined with alternative HVAC equipment
  • Top duct connection - where unit is installed adjacent to a building on the ground


Colt Cortiva controller via browser or app.

Filter options

Single stage: Z-line filter class G4, M5 or F7.
Two stage: Z-line filter G2+F9

VDI certification (optional)

Internal lighting / light switch, sight glass, pressure display, VDI 6022 certificate.

Please contact us for more information relating to the application, specification, installation and servicing of this product.

View the full range of Colt evaporative coolers:

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