ARIANEXT COMPACT S is air / water split heating heat pump of CHAFFOTEAUX for heating and DHW, capable to do cooling as option. System is composed by an external unit and an internal unit. Thermal exchange between refrigerant R-410A and hot water is realized with a plate exchanger in the internal unit. System is equipped of an electrical backup already integrated. The internal unit include an enemalled tank of 180l for production of domestic hot water and it equipped of a double system to prevent from corrosion. Specifically developed to grant high performances at low climates all the products grants an elevate COP > 5 for all models. The external unit specifically developed to reduce noise it has 56 d B(A) of sound power level (version 40S). All models are already A +++ Ready (A +++ is the highest energy class claimable from 2019 for heating). Heat capacity from 4 to 7 kW @ -7/35°C certified NF. 3 different solutions are available in the same file: - ARIANEXT COMPACT 40 S - ARIANEXT COMPACT 50 S - ARIANEXT COMPACT 70 S