Ventilation and Fan Pressure Optimization for VAV Systems

Meeting today's ventilation and comfort requirements in multiple-space VAV systems can be challenging. Building heating and cooling loads are typically not static; therefore VAV systems need to be flexible to respond to the continually changing outdoor conditions and occupant activities. To optimize comfort and minimize energy usage in this dynamic environment, the HVAC control system must also be dynamic. An effective way to assure that the comfort and ventilation needs for all areas of the building are met is to continuously monitor system operation. The system then must then adjust control parameters as necessary to meet the needs for each specific operating condition. This type of system level control can accomplish comfort objectives while keeping operating energy costs in check. The key to optimizing a building's comfort system is factory-mounted, communicating controls on the HVAC equipment.