System

• A three-phase HVAC system provides heating, cooling and ventilation using separate electrical circuits. The three-phase system takes power from one power source and splits it over three electrical circuits.
  
  

Control

• HVAC systems powered by three-phase power systems control the humidity and temperature within a building using heat and cooling systems. Heating and cooling from three-phase systems generally uses forced air to push heated or cooled air through duct work to areas of a building.
  
  

Ventilation

• Three-phase HVAC systems also provide ventilation for buildings by pulling outside air into the building. Ventilation is designed to keep interior air moving and not allow it to become stagnant.