HVAC zoning divides a building into areas that are heated, cooled and ventilated separately, each with its own controls, so conditioning matches the needs of each area.

Why is HVAC zoning important in airport terminals?

Terminal occupancy changes with flights, so different areas are busy at different times. Zoning lets the airport condition busy areas and turn down empty ones.

Can terminal HVAC follow the flight schedule?

Yes, if zone controls are linked to flight schedules, CO2 and people counts. Fixed schedules miss the swings in passenger flow.

Does Aqueduct replace the terminal BMS?

Aqueduct can work across the existing BMS or replace it. Where control is enabled, with owner approval, it adjusts setpoints and schedules and records every command.

Glossary

Airports

What is Terminal HVAC zoning?

Definition

Terminal HVAC zoning is the division of an airport terminal into areas that are heated, cooled and ventilated separately, such as check-in halls, security, gate lounges, retail and back-of-house. Good zoning lets conditioning follow flight schedules and passenger flow instead of running the whole terminal at full output all day.

What it is

Terminals are large, tall spaces with glazing, changing crowds and long operating hours. HVAC usually accounts for a large share of a terminal's energy use. Zoning splits the building into areas served by separate air handling units or controls, each with its own schedule and setpoints.

Occupancy in a terminal follows the flight schedule. A gate lounge may be packed for an hour, then empty. Zones that keep full ventilation and cooling when empty waste energy, while zones that cannot keep up at peak hurt comfort and air quality.

Many terminals have zoning in place but control it on fixed schedules. Linking zones to flight schedules, CO2 and people counts makes conditioning follow real demand.

Who it applies to / where it is used

Terminal HVAC zoning matters to airport facilities, energy and operations teams, and to designers of terminal expansions. It also affects passenger experience and indoor air quality standards the airport follows.

How it is measured / what evidence it needs

Evidence for zoning performance links each zone's energy and conditions to its occupancy.

Air handling unit energy and run state by zone
Temperature, humidity and CO2 by zone
Occupancy from flight schedules, people counting or sensors
Chilled and hot water delivered to each zone
Hours conditioned while unoccupied

How Aqueduct helps

Aqueduct connects each zone's HVAC, air quality and occupancy so conditioning can follow the flight schedule.

aQ EnergySmart reports energy per zone and hours conditioned while empty
aQ AirSafe tracks CO2, temperature and humidity so comfort and air quality hold at peak
Where control is enabled, with owner approval, occupancy-driven automations adjust setpoints and schedules
aQ PredictIQ and FDD flag air handlers and valves that are not performing