18000CMH,3-phase,1-speed, usable for 100-150 square meter, KYS18-S31F (up discharge) ... /60Hz Fan Type axial flow Motor Type 3-phrase,1-speed Usable Area 100-150 m2 Wind Pressure 180Pa Water Capacity ... PumpMechanical Water Inlet Valve Electronic Water Inlet Valve Drain ValveSimple Control Box Variable Speed Control Box(inverter inside ) axial evaporative air cooler, 18000CMH