Model BS15-013S-f BS15-016S-f BS15-020S-f Heating capacity KW 4.6 6.7 9 BTU 15700 22800 30700 COP 6.2 6.5 6.4 Operating range-Air ° C 一7~43 Advised water flow M³/H 4~4.5 4~6 6~9 Rate input Power W 740 1030 1400 Running current heating A 3.5 4.9 6.8 Max current heating A 5 6.7 8.7 Heat exchanger Titanium in PVC Compressor Rotary Fan direction Horizontal Sound level d B(A) 50 water pipe in-out spec mm 50/48.3 Net dimensions（L*W*H） mm 920*390*630 920*390*630 920*390*630 Packing dimension mm 970*450*780 970*450*780 970*450*780 Power supply V/Ph/Hz 230/1/50 Measuring conditions A26W26 FAQ 1Whether the heat pump unit can operate normally in winter with low temperature? Yes. Air source heat pump unit has intelligent defrosting function to ensure stable operation of the unit in low temperature environment. It can automatically enter and exit defrosting according to multiple parameters such as outdoor environment temperature, evaporator fin temperature and unit operation time. 2.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. 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.