OverviewDirect digital controlBuilding automation systemCost and efficiencyGoals HVAC system installationDesign, modeling, and marketingHistorySee also
HVAC (Heating, Ventilation and Air Conditioning) equipment needs a control system to regulate the operation of a heating and/or air conditioning system. Usually a sensing device is used to compare the actual state (e.g. temperature) with a target state. Then the control system draws a conclusion what action has to be taken (e.g. start the blower).