Coils are made of inner grooved copper tubes with aluminum slit fins mechanically bonded with each other AC&R grade Condensate drain tray is sloped as per ASHRAE 62 and is made of powder coated galvanized sheet metal (1.2mm thick) to ensure leak proof joint and insulated with 12 mm thick EPE , fire retardant lining material for thermal insulation. Evaporator blower fans made from G.I. / AL sheet metal and are double suction centrifugal type with characteristics such as low noise fitted with motors with permanent lubricated bearings. 6. Condenser fan blades propeller type are made from G.I. / AL sheet metal. (SPPR) 7. All motors used in condenser section are 3 Phase, IP55, Class-F insulation. All 3 Phase motors used in evaporator section are IP55, Class-F insulation (Models : 090~180). All single phase motors used in evaporator section are Class-B insulation (Models : 048~072).