Model BS15-013S BS15-016S BS15-020S Heating capacity KW 5.6 6.2 9.3 BTU 19000 21150 32000 COP 6.6 6.2 7 Operating range-Air ° C -7~34 Advised water flow M³/H 2-4 2-4 2-4 Rate input Power W 840 1000 1336 Running current heating A 3.96 4.54 6.36 Max current heating A 5.2 7.3 8.5 Heat exchanger Titanium in PVC Compressor Rotary Fan direction Horizontal Sound level d B(A) 50 Water connections mm 50/48.3 Gross weight Kg 57 58 59 Qty per 20'ft/40'ft 114/219 Power supply V/Ph/Hz 220~240/1/50 FAQ 1. 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. 2.How much the air to water heat pump power consumption? Mainly influenced by outdoor temperature. When the outdoor temperature is lower,the heating time is longer,the power consumption is more,and vice versa. 3.Do you think swimming pool heat pump only used for swimming pool? No，it can also be used for Hot Spring，Fishing Farm，Jacuzzi Spa and so on. 4.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.