China Air Source Cooling Heating Pump, High Efficiency Air Source Heating Pump, Factory 1) Working ambient range: -15ï½?45 2) Heating capacity: 9kw, 14kw, 18kw, 24kw, 34kw, 43kw, 85kw 3) COP up to 4.1 4) Refrigerant: R410a Airosd Thermal Technologyis a Professional Heat Pump Manufacturer for Building Reconstruction Heating Project, Swimming Pool, Primary School. We are specialized in research, production and sales of Air Source Heating Pump, providing a solution for the residential and commercial heat pump systems. Heat Pump Dryer is also supplied now. More information please view here.