Top Mounted Air Coolers Product Description: Top-mounted series air cooler mainly used with various condensing units in cold storage warehouses. Top-mounted air coolers has three serious :DL/DD/DJ series.DL series suit for cold room of 0℃.DD series suit for cold room of -18℃.And DJseries suit for cold room of -23℃. Casing: Utilizing high quality stainless plate and coating processing,anti-corrosion,the appearance is smooth and beautiful. Heat Exchange Coil: The evaporator utilizes thin walled steel tube and aluminum fins after twice processing. The tube has high heat changing efficiency. Corrugated aluminum fins,fin spacing 4mm,6mm and 8mm. Fans: External rotor motor.The motor anti moisture,anti low temperature，large air flow,low noise and reliable working.Fan specificationφ300-φ500mm,Number from 1 to 4. Electric Defrost：The defrosting system is made up of stainless steel tube which is laid in the coil.The defrosting is time saving and effective .