Compact so every square inch inside the dryer is used. Digital Interface controller, with 8 temperature sensors, enabling complete system monitoring. Aluminum Plate Heat Exchanger- low pressure drop (2 psi) Efficient ( 38F real pressure dewpoint) Scroll Compressors are energy efficient and resistant to liquid shock. Integrated Dual Filter Systems filter the compressed air to 0.1 micron. Electric wires are separated from refrigerant side. All wires inserted into plastic wire holders. Extra ball valves are brazed into the refrigerant circuit Pressure switches are put into the electric box for easy access.