• Unique floating coil design avoids leakage caused by thermal expansion and contraction. • Staggered fin pattern design and corrugated fin enhance air flow turbulence • Inner-grooved copper tube increase heat transfer area and enhance heat transfer • Optimized flow pass design ensure fully heat exchange with refrigerant • Equipped with 2nd generation owl-wing fan motor as standard. It features with low noise level, large volume flow and low energy consumption. Ready for dual speed connection. • Outdoor type powder coated casing made of galvanized sheet metal and stainless steel bolts provide a high resistance to corrosion. • Optional features: • EC variable speed fan motor, to save great energy • ZAplus/AxiTop for greater volume flow and extreme silence • Adiabatic system significantly reduce energy consumption in summer • Epoxy coated or hydrophilic aluminum fin suitable for coastal or high corrosion area • Fluid dry cooler • Clean stainless steel tube and aluminum fin coil for cooling deionized water.