Model BLH15-018S Rated heating capacity KW 9.8 COP 4.0  Heating power input KW 2.42 Power supply V/Ph/Hz 220~240/1/50 Max outlet water temp ° C 85 Applicable ambient temp ° C 一25~43 Running current A 16.9 Noise d B(A) 50 Water connections Inch 1'' Gross weight KG 138 FAQ 1.If there is any problems of the heat pump in the future, how to fix it? We do have unique bar code number for each unit. In case heat pump has any problems, you can describe more details to us together with the bar code number. Then we can trace the record and our technician colleagues will discuss how to solve the problem and update to you. 2.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. 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.