Model BS15-030S BS15-038S BS15-045S BS35-045S Heating capacity KW 13.7 15.7 20.4 20.3 BTU 46700 53500 69600 69200 COP 6.8 6.4 6.7 6.6 Operating range-Air ° C 一7~43 Advised water flow M³/H 4~5.5 4~6 5~7 5~7 Rate input Power W 2008 2440 3000 3070 Running current heating A 10.0 11.45 14.6 4.9×3 Max current heating A 13.9 14.8 18.8 6.5×3 Heat exchanger Titanium in PVC Compressor Rotary Scroll Fan direction Horizontal Sound level d B(A) 60 Water connections mm 50/48.3 Gross weight Kg 100 120 132 134 Qty per 20'ft/40'ft 34/74 34/74 34/74 34/74 Power supply V/Ph/Hz 220~240/1/50~60 380/3/50~60 FAQ 1.Where can heat pump units be used? Heat pump units are widely used, including various types of commercial machines specially designed for hotels, schools, hospitals, saunas, beauty salons, swimming pools, laundry rooms, etc.; there are also various types of household machines specially designed for families.  At the same time, it can also provide free air cooling, which can realize the whole year heating. 2.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. 3.Can your pool heat pump be connected to PV system? The heat pump is powered by PV system. As long as the PV system can meet the maximum power consumption of heat pump, it is feasible.