... heater,R744CO2 air conditioner,CO2 air cooling1.the newest CO2 (R744) green refrigerant air conditioner and heat pump water heater.2 ... -70IIEletric supply AC380V/50Hzcompressor special CO2 compressorcompressor rated input power18kWrefrigerant R744(CO2)heating capacity 69.8kW/cooling capacity82.3kWCOP4.6hot water ...