Model ZR3W-80Tu Refrigerant R134A Rated heating capacity W 750 BTU 2550 COP 3.2  Heating power input W 235 Power supply V/Ph/Hz 200~220/1/50 Max outlet water temp ° C 60 Applicable ambient temp ° C 一7~43 Tank volume L 80 Rated running current A 1.2 Noise d B(A) 47 Air volume M³/H 700 Rated tank pressure Mpa 0.6 Water connectionns inch 3/4'' Gross weight KG 68