1. Famous water pumps inside, which ensures an easier installation and less space taken. 2.High efficiency compressor with R410a refrigerant. 3.Water flow switch equipped for water flow protection 4.Careful protection functions such as: high pressure, low pressure, and over-heating, overload anti-freezing, phase order, discharge temp .etc. 5.Water side equipped with AISI 316 steel plate exchanger 6. Carel and LCD controller is option. 7.Stainless steel cabinet for option 8..50HZ and 60HZ are both available Heating capacity 12~24.5KW. COP 4.92~4.96 Certificates CE,CCC, ISO9001. Carton box or plywood