Dynair REC Pro 90 High efficiency HRU

The REC PRO 90 series of industrial heat recovery units are designed to be integrated into the ventilation systems of large buildings, providing high performance and low energy consumption. They are equipped with a high efficiency, counter flow plate heat exchanger, which complies with the latest EU 1253/2014 regulations. The filters are also highly efficient, with barely any pressure drop; an F7 class filter on the exhaust side, and an M5 class filter on the intake side. The fan features a backward curved blade impeller, coupled directly to the EC motors, which provide low energy consumption. These units can be easilyy integrated into pre-existing ventilation systems, available in 6 different sizes in both horizontal and vertical orientation, with performance ranging from 450 to 5000 m3/h.

This product complies with the European Union’s ecodesign directive.



  • 42 mm thick double-layer casing made from galvanized steel sheets.
  • External panels made from galvanized steel, painted in RAl 9002 light grey.
  • Internally lined with thermo-acoustic and fireproof rockwool insulation.
  • High efficiency, counter flow, aluminium plate heat exchanger, with up to 90% heat recovery.
  • Integrated “free-cooling” mode without heat recovery.
  • F7 class filtering sections on the intake, and M5 class filters on the exhaust side, compliant with EN 779:2012 regulations.
  • Backward curved blade impeller coupled directly to the EC motor.
  • Built-in control panel for adjustment of all the different modes, monitoring the state of the filters, weekly programming, defrost management, anti-freeze mode, fire alarm connection, and Modbus interface.

Available upon request:

  • AQS –  CO2 sensor
  • DPS – pressure difference sensor

For further details, feel free to contact KOMPEL Kft.