The VHD is an active ceiling diffuser for supply air. The active diffuser shall be made of painted steel with a white (RAL 9003) standard colour. Air shall be introduced into the space through the side slots and perforated front panel, ensuring a high mixing rate.
The diffuser shall be connected to a balancing plenum designed for the active diffuser installation and equipped with a measurement and adjustment module.
In the demand-based ventilation (DBV) and variable air volume (VAV) systems, room conditions can be guaranteed to be without a risk of draughts, at both the maximum and minimum airflow rate.
Active supply air unit for ceiling mounting
Stable supply throw length with variable airflow rates
Elimination of the risk of draughts
Wide supply air temperature range
Useful in systems with a constant static pressure ductwork system
Designed for use with the VRI/V plenum
Maximum flow rate adjustment and measurement section available for supply (MSM)
Minimum airflow of the VHD: approximately 10…15 l/s for sizes 160…250
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