In every Daikin commercial air conditioner, our high-performance, high-efficiency compressors operate in tandem with our high efficiency coil design. This innovative system offers one of the best levels of reliability, durability and efficiency we offer in our commercial packaged air conditioners. The Daikin DX13 and DX11 commercial air conditioners feature a powder-paint finish over heavy-gauge galvanized steel. This provides premium durability and improved UV protection. The attractive louvered metal guard protects the coil from damage and strengthens the unit. The base pan is elevated to provide excellent water drainage and helps keep the coil away from debris that can collect inside the unit.