• Eco-friendly Green Refrigerant To reduce carbon emission to the environment and curb global warming, O.S.B.develops R290 air to water heat pump. With many advantages such as low carbon emission and high efficiency, R290 refrigerant is recognized as a refrigerant with the most development potential in the industry, which contributes to the reduction of carbon emission and help achieve the global goal of carbon neutrality. Otherwise, there are other green refrigerants available options, such as R32, R410A, R134A • Consistency regardless of the time or temp outside All weather operation is stable without being influenced by weather. Deliver heating, cooling and hot water in all climates. • Equipped with Inverter Technology Our inverter is an energy saving technology that efficiently controls the motor speed and reduces energy consumption by up to 30%. Rather than expending energy by starting and stopping, the inverter adjusts the speed of the motor so that it runs continuously and more efficiently in the long run. • Smart Wi-Fi Control The intelligent controller is used to realize the linkage control between the heat pump unit and the terminal application to improve the operation efficiency.  Through the WIFI APP, users can operate their devices from their smartphones anytime and anywhere. • Low Noise Running A fully enclosed cabinet is specially designed for the compressor so that the running noise can be kept inside and the noise of the whole unit can maintain very low. • Wide & Flexible Application Use for heating, cooling, and domestic hot water. There are also a variety of combination modes. •  Module Combination Design This design is suitable for commercial, industrial, agricultural places with large hot water demands. One central controller is able to control 16 modular units. • Unique Functions and Protections There are multiple intelligent functions: memory function/ timer/ temperature control/ malfunction detect and 4-way protections: water lack protection/ system pressure protection/ abnornmal alert/ brust protection on heat exchanger • GSHP External Connection Methods  Model BGB1I-050 Refrigerant R290 Rated heating capacity * kw 2-6 BTU/h 6800-20460 Rated heating capacity ** KW 1.8-5.6 BTU/h 6100-19100 Rated cooling capacity KW 2-6 BTU/h 6800-20460 Heating power input * KW 0.4-1.34 Heating power input ** KW 0.45-1.6 Cooling power input KW 0.4-1.37 Running current(heating) * A 1.8-6.1 Running current(heating) ** A 2-7.3 Running current(cooling) A 1.8-6.3 Power supply V/PH/HZ 220-240/1/50-60 COP * 4.5-5 COP ** 3.5-4 EER 4.4-4.9 Max outlet water temp ℃ 60-75 Minimum outlet water temp ℃ 3 Quantity of compressor 1 Compressor brand 海立 Water connection inch 1 Heating Water flow volume m3/h 1.7 Heating Water pressure drop kpa 50 Cooling Water flow volume m3/h 2.1 Cooling Water pressure drop kpa 50 Net Dimension （L*W*H） mm 900*803*885 Packing Dimension（L*W*H） mm 930*833*950 FAQ 1.Is the use and operation of air source heat pump unit easy? It is very easy. The whole unit adopts automatic intelligent control system. The user only needs to turn on the power supply for the first time, and fully realize the automatic operation in the later use process. When the water temperature reaches the user's specified temperature, the system automatically starts up and runs when the water temperature is lower than the user's specified water temperature, so that hot water can be available 24 hours a day without waiting. 2.How deep is the pipes of ground source heat pump buried? Laying buried pipes generally require a depth of 2 meters, and vertical buried pipes require 100 meters deep or more. As for the tiled area, you need to consult your installation engineer for advice, because the geology of each area is different, and the parameters are different. 3. What’s your after- sales policy? In 2 years period, we can offer free spare parts to replace damaged parts. Out of 2 years period, we also can offer parts with cost prices.