Swimming pool heat pump features:  1. Safety: water and electric separately.  2. Anti-corrosion: plastic case, coated steel or sus304# stainless steel case are available.  3. World famous brand compressor, 4-way valve, motor, pcb, titanium heat exchanger,   Emerson alco expansion valve used to ensure top quality an high efficiency(cop more than 6.0).  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 used To ensure top quality an high efficiency(energy-saving as much as 75%).  6. Multiple protection function: high pressure, low pressur, overheating, overload anti-freezing, phase sequence,   Discharge temperature, suction temperature and so on.  7. All weather operation: stable operation without being influenced by weather.  8. Refrigerant of r22, r407c, r134a are for optional.  9. Automatically defrosting function included.  Technical parameter: Unitsdbt-4.0sp Heating capacitykw4.00 Heating power inputkw0.73 Operating currenta3.30 Copw/w5.50 Power supply v/ph/hz220/1/50-60 Rated output water temp.?c35 Maximum output water temp.?c40 Compressortyperotary Refrigerant typer22/407/410a Lengthmm930 Widthmm360 Heightmm550 Unit noise level de(a)52 Net /gross weight kg40-50 Certificationcb, ce, emc, rohs, saso, ccc