... Heat Pump 3.R407C Avaliable 4.CE Certificate Flooded Type High Efficiency Geothermal Ground Source Heat Pump Competitive Advantages ... energy control, fault diagnosis and control of such a multi-function, convenient man-machine dialogue. Comes with RS485 communication port. ... textile, food, medicine, metallurgy, chemicals and boiler works. Flooded Type High Efficiency Geothermal Ground Source Heat Pump