product features: 1. Safety:water and electric separately. 2. Hot water(55 degree) an be provided directly&constantly 3. Convenient: Intelligent microprocessor with touch screen display.Trouble shoot on display board automatically 4. 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%). 5. Multiple protection function:High pressure,low pressur,overheating,overload anti-freezing,phase sequence,discharge temperature,suction temperature and so on.All weather operation: stable operation without being influenced by weather. 6.Metal case and stainless steel case are available. 7.Refrigerant of R22,R407C,R410a,R417A,R134A are for optional. 8. Automatically defrosting function included. Technical parameter: UnitsDBT-180KW Heating capacityKW180.00 Heating power inputKW12.9*4 Operating currentA19.8*4 COPW/W3.5 Power supply V/pH/Hz380/3/50-60 Rated output water temp. ?C55 Maximum output water temp. ?C60 CompressorTypeScroll Refrigerant TypeR22/R407C/R410A Lengthmm2000 Widthmm2000 Heightmm1975 Unit noise level de(A)86 Net /Gross weight kg1150/1350 Certification CB, CE, EMC, RoHS, SASO, CCC