VAV allows for two-stage airflow control in each zone

This allows ventilation to be controlled independently of when individual rooms are being used, though not how much they are loaded.

VAV is typically used when:

- Room use is periodic
- Loads from people show low variation
- Heat load shows a low variation

Examples: Single-occupant office, meeting rooms, showroom.

Features Advantages Disadvantages
A timer and weekly plan control the activities of the basic ventilation

A switch or motion sensor turns up the ventilation in the individual rooms

A controller maintains constant pressure in the duct system, ensuring correct airflow distribution.
Ventilation of rooms in use only Same airflow in the room regardless of number of persons

Updating of weekly plan in event of changes to pattern of use.


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Vex overview

VEX Summary

Get a quick overview of our entire range of compact VEX air handling units with heat recovery.

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