Changing needs for heating and cooling
In terms of temperature, needs may be seasonal, but heating is still typically needed at night and in the morning, with daytime cooling. The premises are often high-floorage with high ceilings, which also has to be taken into account.
The ventilation is adapted to work shifts and staffing
Unmanned industrial premises are ventilated with 100% recirculated air, and are heated only when required. In manned premises, 100% recirculated air is used before the shift, and is followed by morning adjustment when the temperature is raised to the required value. During the shift, the ventilation flow is scaled to match. If the need for heating arises, the system triggers a heating boost, and the opposite for cooling.