... /R22 Power supply: 3P/380V/50HZ(60HZ) The water chiller is designed of case type, totally-enclosed case shell, ... directly on the working site, keep constant running even under changeable temerature outdoors and prevent dust from influencing heat elimination ... low speed, low noise, excellent heat dissipation against dust, water spray, and ensures safe use. Sinocean newest best-seller Water chiller