Microprocessor Based Panel Air Conditioners are designed to be used in electrical electronic panels and server to control temperature and humidity as well as provide dust protection. These Panel Air Conditioners are provided with two independent hot and cool air circuits in which the internal cool air circuit keeps the panel cool and the external hot air circuit pumps heat to the atmosphere. These Panel Air Conditioners are available with panel air conditioner that keeps enclosure internal temperature and humidity at constant level, even to out side temperature at very low or high. Microprocessor Based Panel Air Conditioners can be availed in a capacity range varying from 0.20 Tr to 3.0 Tr.