Product features:  1. Safety: water and electric separately.  2. Using renewable energy: getting energy from land or water, without any effect from climate, super cop, decrease eletric comsumption to protect our earth. 3.Base frame and external pannels made of galvanized powder coated steel or stainless steel which is good at anti-corrosion and rusty. refrigerant of r22, r407c, r134a are for optional. 4. Convenient: intelligent microprocessor with touch screen display. Trouble shoot shows on display board automatically. 5. World famous brand compressor, 4-way valve, motor, pcb, heat exchanger, emerson alco expansion valve use to ensure top quality an high efficiency (energy-saving as much as 75%).  6. Water flow switch equiped for water flow protection. 7. multiple protection function: high pressure, low pressur, overheating, overload anti-freezing, phase sequence, discharge temperature, suction temperature and so on.  8. patent mixed refrigerant using for high temperature&high pressure system.  9. automatically defrosting function included.  Technical parameter:   Unitsdbt-102gl Heating capacitykw102.00 Heating power inputkw20 Operating currenta30.60 Copw/w5.05 Cooling capacitykw74.00 Cool power inputkw19.50 Operating currenta29.6