Decentralized school ventilation unit FVS-900 Eco2School wall installation

Maximum protection against infection
Highest air quality

For controlledCO2 content without outside noise and entry of fine dust/pollen

The LTG FVS Eco2School product line is specially designed for classrooms, group rooms and meeting rooms and is VDI 6040 compliant. Suitable for new builds and renovations, can be easily integrated into the wall or ceiling.

Here you will find examples of typical installation situations.

Type FVS-900 for air volumes up to 900 m³/h. Suitable for ventilating individual, connected rooms or usage units up to approx. 180 m² floor area or for groups up to max. 30 persons.
For higher air volumes up to 990 m³/h, we recommend type FVS-1000.
For lower air volumes up to 730 m³/h, we recommend the type FVS-600.

  • Maximum protection against infection thanks to 100% fresh air supply
  • Highest air quality: energy-efficient, draught-free and low-noise
  • Maximum flexibility for ceiling or wall mounting (with or without cladding)
  • Guaranteed compliance with workplace regulations and VDI 6040 incl. of the
    required minimum outside air change
  • Disruption-free teaching and minimal fine dust/pollen content
    through effective filtering of the outside air
  • Individual control as required: controlled by time orCO2/VOC sensor
  • Modular complete system
  • Only one façade opening for exhaust and outside air
  • Energy-saving thanks to highly efficient heat recovery (> 80 %)

An overview of all variants of the FVS family incl. technical data can be found in our brochure Decentralized ventilation units.


Here we have compiled the most important facts and information on the operation of ventilation systems.
Recommendations for operating the FVSEco2School decentralized ventilation units can be found here.

Technical Data


Heat recovery Night ventilation Supply air/exhaust air

Technical Data for L_pa= 35 dB(A)

Volume flow up to 900 m³/h Heat recovery coefficient up to 83 % Electrical power consumption up to 420 W Schalldruckpegel Lp(A) up to 36 dB (A) SFP value 822 W (m³/s) Weight 236 kg


Installation tilted upright behind a partition wall or in a wall cabinet, with integrated slot diffusers LDB


Electric reheating coil Connection to various bus systems Weather protection grille Junction boxes