Air source heat pump (KK series) This series is our KK series of air to water heat pump.It included integral KK series,Split KK series,Commercial KK series. The first and the second pictures show our KK series of air to water heat pump. KK series is specially designed for house heating in cold area .The evaporator is 30% bigger than normal ,which could ensure high efficiency and better performance in low ambient temperature .According to the test ,it could work safely in -15oC,and reach COP 4.0 in practical working condition .Special modular system design .The whole unit separated in 2 or 3 systems with separate compressors .Each system stays as a module, it can start and work separately .Benefit from this design ,the unit could have different output level according to the heating requirement .And also the modules could start one by one to lower the startup current. R410a refrigerant is standard for this series, which also is helpful to get better performance in low temperature. Specification: Heating capactity: 44000BTU/h 85000BTU/h COP: 4.00 Cooling capacity: 34000BTU/h 67000BTU/h EER: 2.83 2.88 Certification: CCC, CE, etc. The third picture shows our outdoor unit of split KK series of air to water heat pump.The fourth picture shows our indoor unit of split KK series of air to water heat pump. With all standard characteristics which is available in normal KK series. Split design with compressor and water system in indoor unit, which ensure a better anti-freezing protection and lower heat dissipate. The indoor unit is designed for super low noise operation .All moveable parts are set in a suspended base .The pipe system also is carefully designed and organized to reduce vibration .And ,inside of the cabinets is full insulated .All these ensure the unit operate stably and quietly. Specification: Heating capacity: 31000BTU/h 60000BTU/h COP: 3.93 4.05(Varies with different models) Cooling capactity: 24000BTU/h 46000BTU/h EER: 2.80 2.88 (Varies with different models) Certification: CE, CCC The fifth picture shows our commercial KK series(V-up blower) of air to water heat pump. Commercial KK series are designed for offering heat to bigger houses, or commercial buildings, such as office, workshop, super market, school, etc. Commercial KKis equipped with big evaporator, testing in lower operating temperature, and higher COP in practical working condition. Vertical air flow with strong blower, better efficiency and lower noise. Unique "V" style evaporator design is big strongpoint for this unit. It increased the condenser space in air flow direction, which results bigger effective air volume. It had been proved to be betterefficiency by our testing. This design is also easier for the defrosting water to drain out. Scroll compressor with R410a refrigerant is standard for this series. It is helpful to get better performance in low temperature. Specifications: Heating capacity: 52000BTU/h 87000BTU/h COP: 3.9 4.1(Verifies with different models) Heating: Ambient temp. (DB/WB):7/6,Water temp.(In/Out):30/35 Cooling capacity: 40000 67000BTU/h EER: 2.83 2.87(Verifies with different models) Cooling: Ambient temp. (DB/WB):35/24,Water temp.(In/Out):12/7Certifications: CE, CCC,etc. The sixth picture is also our commercial KK series of air to water heat pump.The specifications are described as following: Specifications: Heating capacity: 105000BTU/h 360000BTU/h COP: 3.7 4.0(Verifies with different models) Heating: Ambient temp. (DB/WB):7/6,Water temp.(In/Out):30/35 Cooling capacity: 85000 290000BTU/h EER: 2.80 2.95(Verifies with different models) Cooling: Ambient temp. (DB/WB):35/24,Water temp.(In/Out):12/7Certifications: CE, CCC,etc.