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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  Category Download
  1 files      603 downloads
Brochures Download
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Catalogue – HR ClassUnit
  1 files      507 downloads
Catalogues Download
  Category Download
TAC5 Updates
  16 files      426 downloads
Software Locked
  1 files      264 downloads
Software Locked
Selection Software
  1 files      666 downloads
Software Locked
  9 files      250 downloads
Software Locked
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EC Declaration
  1 files      336 downloads
Certificates Download
Drawings – HR ClassUnit
  2 files      43 downloads
Additional information Download
EC Declaration of compliance – TAC fans
  1 files      94 downloads
Certificates, Additional information Download
  1 files      371 downloads
Certificates, Additional information Download
CC Amca Ahsrae – Lemmens products
  1 files      178 downloads
Certificates, Additional information Download
Filter kit list
  2 files      455 downloads
Additional information Download
Warranty certificate – Lemmens products
  1 files      175 downloads
Certificates, Additional information Download
Picture – HR ClassUnit
  1 files      41 downloads
Images Download
EC Declaration of compliance – REC HR
  2 files      95 downloads
Certificates Download
REACH regulation – REC HR
  1 files      84 downloads
Certificates Download


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