1.unit cooler 2.excellent quality 3.complete in specifications 4.dependable performance 5.world-wide reknown reputation 1.air ... Cooling coil Specific wholly rippled street fin, fin spacing 5,8,10,12,16mm Stell tubes φ20mm.Tube ... 50ºC to 100ºC.electrical supply:380V/50HZ/3φ. Electrical is determined against the axial fan model. ... . Otherwise, excessive frost must be removed away roof mounted unit cooler