Mod VMT system
  • More energy savings (lower thermal losses and lower fan consumption) by controlling airflow (supply and return) according to room occupancy (using occupancy detectors and CO2 sensors).

  • The system is validated by a Technical Approval.

Discover the range

Mod VMT system
    Components of the VMT range (Controlled Ventilation for Non-residential) constitute an airflow control system for the non-residential market.

    The Mod Pilot is the brains of the VMT system: it controls the airflow according to room occupancy to achieve a good IAQ (Indoor Air Quality) with low energy loss.

  • The Mod Pilot main module:
  • can accept up to 8 sensors,

    can control up to 6 Mod MDA (motorised dampers).


  • Two configurations are possible: with or without Mod MDA.

  • Multiple areas to ventilate - configuration with Mod MDA:
  • one fan or the air handling unit, which extracts air from several areas,

    for each area to ventilate:

    1 Mod Pilot main module which receives information from sensors and controls the Mod MDA.

    the Mod MDA which opens or closes to adjust the airflow to needs.

    1 MR (airflow control module)

    Up to 8 Mod Optical sensors (occupancy detection) or a Mod CO2 sensor (CO2 detection) 

    Optional modules to receive and/or send information to other systems in the building.

    1 12V DC power transformer and its circuit breaker.

    A suitable duct network.


  • Single area to ventilate - configuration without Mod MDA:
  • one fan or the air handling unit, which extracts air from a single area,

    1 Mod Pilot main module which receives information from sensors and controls the fan or the Air Handling Unit.

    1 12V DC power transformer and its circuit breaker.

    1 optional module for Mod Pilot to transmit a control signal to the fan.

    Up to 8 Mod Optical sensors (occupancy detection) or a Mod CO2 sensor (CO2 detection) 

    A suitable duct network.


  • 3 types of detection:
  • Agito (several Mod Optical sensors): airflow control proportional to the activity detected.

    Presence (Mod Optical sensor): high or low airflow control depending on room occupancy.

    CO₂ (Mod CO2 sensor): high/low airflow control or proportional to activity detected, based on the CO2 level.


  • 5 diameters, from 125 mm (max airflow 160 m³/h) to 315 mm (max airflow 1100 m³/h).

  • CE-certified
  • RE 2020 star
  • Made in France
  • Non-residential:
  • New builds and refurbishment.
  • Technical Approval indicating an airflow coefficient (Crbndr) reduction for energy use calculations.
  • Technical Approval for Controlled Ventilation in Non-Residential Buildings no. 14.5/16-2185_V3
  • CEE-eligible: operation sheet No. BAT-TH-125 and 126
    Once the installation is complete, the network should not require any specific work. The IN-OUT 1-10V MOD, Mod Relay, or Mod Contact modules can return information or receive commands from a central building management system (BMS).
  • Installation for interior use only.
  • 230V 30W power supply with circuit breaker for each ventilated area (excluding fan).
  • Installation and connection of sensors, of Mod MDA, optional modules.
  • Duct connections.
  • Installation of diffusers.
  • Configuration of operating mode by Aldes commissioning (optional).