Low Noise Heat Pump 1. commercial use 2.,R410A,work at -20~40C 3.,noise:<55Db,cop:4.0 4.,voltage:380 to 460v,50/60hz,3ph Low Noise Heat PumpTechnical parameters:MD200DRated input power: 18.4kwHeating capacity: 72kwCooling capacity:60kwVoltage: 380VFrequency: 50hzCurrent:35AReated outlet water temp:55 degreeMax outlet temperature: 65degreeCirculating water flow: 12400m3/hPipe size:DN ...