The ELFOEnergy Sheen EVO (WSAN-YSi) series of air to water full DC inverter packaged heat pumps for external installation, with R32 refrigerant, available in 6 sizes from 24 kW to 62 kW, is now completed with additional 3 sizes from 77 kW to 96 kW.
The new WSAN-YSi 30.2-35.2-40.2 units all the features and functionalities that made the ELFOEnergy Sheen EVO series at the forefront of its category, making it among the most competitive and innovative on the market.
The new series WSAN-YSi substitutes the ELFOEnergy Medium WSAN-XE 82-302 heat pump series with R410A refrigerant, proposing an improvement of the overall proposal: either in terms of operating efficiency, functionalities, and accessories.

Top performances 
Improved performances guarantee A++ class in heating at Low Temperature (35°C leaving water) and seasonal efficiency in cooling on top of its category, with SEER values up to 4,64.
 
Modular Design
ELFOEnergy Sheen EVO is designed for modularity. It is possible to connect up to 16 units in a local network, reaching a maximum capacity of 1530 kW. The combinations can also take place with different capacity units. The modular system, obtained by combining several modules, preserves the strength of the single module but multiplies the advantages: higher reliability, simplified handling, and installation, quick and easy maintenance, scalability.

Distinctive functions
The new WSAN-YSi 30.2-35.2-40.2 units can provide heating, cooling and also domestic hot water production up to 55°C of water temperature, with an operating range from -15°C to +43°C of outdoor air temperature. 
With the aim to satisfy all the applications and possibility of installations, they also offer all the functions of ELFOEnergy Sheen EVO series such as the double adjustable set-point and the possibility to set the climate correlation curves, both in heating and cooling operation.

New accessories
All ELFOEnergy Sheen EVO units can be now supplied with the main switch, available on-board or for external installation.
In addition, for a complete control solution from remote, it is now available the Advanced remote control module. This new multifunction board allows the advanced use of digital inputs and Modbus gateway with configurable baud rate.
Application versatility
ELFOEnergy Sheen EVO is available in standard configuration or it can be configured with following components, integrated on board to guarantee maximum reliability and easy installation:

• hydronic assembly with 1 inverter pump; 
• hydronic assembly with 1 on/off pump; 
• 3-way valve for domestic hot water production; 
• system storage tank of 145 litres (size 10.1-12.1-14.1), 160 litres (size 16.2-18.2-22.2) or 275 litres (size 30.2-35.2-40.2)