Dynair REC PRO 90S Very high efficiency HRU with static heat exchanger

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. These units can be easily integrated into pre-existing ventilation systems, available in 4 different sizes, suitable for all-season operation in false ceiling installations, with performance ranging from 4800 to 23500 m3/h.

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



  • Frame made from extruded aluminium profiles, with 42 mm thick sandwich type side panels, featuring special sealing gaskets. Finished in RAL 9002 light grey.
  • Class 0 acoustic and thermal insulation, made from high density mineral wool.
  • F7 class filtering sections on the intake, and M5 class filters on the exhaust side, removable from the side of the device.
  • Single inlet, backward curved blade impeller, coupled directly to the EC brushless motor.
  • High efficiency, counter flow, static heat exchanger, with up to 90% heat recovery, equipped with a built-in motorized by-pass mode.
  • Complete control panel with remote display, temperature control at fixed airflow, optimized for energy savings.
  • Compatible with Modbus RTU protocol based systems, via RS485 connection.
  • See catalogue for a wide range of accessories.

Available upon request:

  • AQS –  CO2 sensor
  • DPS – pressure difference sensor

For further details, feel free to contact KOMPEL Kft.