Carrier 48ZZ501302 Economizer Control Board (EXB) With Software

The Carrier 48ZZ501302 Economizer Control Board (EXB) is an electronic microprocessor-based control unit used in Carrier HVAC systems. It controls the economizer cycle which uses outdoor air to cool a building where the weather is appropriate. The EXB operates by transmitting information to sensors to measure the outdoor air temperature and humidity. It then compares these external factors with indoor conditions to establish when the introduction of outside air is an effective cooling strategy. Carrier HVAC systems compatible with pre-loaded software guarantee the better performance and compatibility.