Double Flow Ventilation

ClassUnit PX

  • ClassUnit PX

    The ClassUnit PX is a double flow high efficiency heat recovery unit specially designed for classroom applications. This decentralized solution is very easy to install on walls and is suitable for school renovation.

The ClassUnit PX is a decentralized double flow ventilation unit with high efficiency energy recovery (up to 94%) composed of a counter flow aluminium plate exchange and equipped with TAC control technology . It is specially designed for classrooms or meeting rooms, particularly in the case of refurbishment since no ducting work is needed. Its design allows silent ventilation, adapted to the needs of the moment.

allows a lot of communication options such as Modbus, Ethernet, WIFI or KNX, for controlling the device. It is also easy to link with an air quality sensor (CO2 or VOC) and to link the actual delivered airflow to the measurement. It is delivered ready to use, entirely pre-wired, (including the options) all you need is to connect to the power supply (outside the unit), to connect the remote control or communication interface and to activate the unit, and it’s ready to run.


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Catalogue – HR ClassUnit
  1 files      586 downloads
Catalogues Download
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TAC5 Updates
  16 files      522 downloads
Software Locked
  1 files      280 downloads
Software Locked
Selection Software
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Software Locked
  9 files      282 downloads
Software Locked
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EC – Declaration of Conformity
  1 files      15 downloads
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Drawings – HR ClassUnit
  2 files      59 downloads
Additional information Download
EC Declaration of compliance – TAC fans
  1 files      119 downloads
Certificates, Additional information Download
  1 files      397 downloads
Certificates, Additional information Download
CC Amca Ahsrae – Lemmens products
  1 files      209 downloads
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Filter kit list
  2 files      634 downloads
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Warranty certificate – Lemmens products
  1 files      205 downloads
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Picture – HR ClassUnit
  1 files      67 downloads
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EC Declaration of compliance – REC HR
  2 files      118 downloads
Certificates Download


ModelAirflow rate [m³/h]Automatic bypassPost heatingERP 2016/2018
Class Unit PX100-1000yes -100%YesYes / Yes