TECHNICAL FEATURES • Steel tank with double layer vitrification. • Anti-corrosion magnesium stick for assuring the durability of the tank. • Condenser wrapped externally to the boiler, free from fouling and gaswater contamination. • High thickness polyurethane foam (PU) thermal insulation. • Outer shell made of grey colour plastic material. • Acoustically isolated top part plastic cover. • Highly efficient compressor with the R134a refrigerant. • High and low gas pressure protections. • Electrical heater available in the unit as a back-up (with integrated thermo cut out with protection set at 90°C), assuring constant hot water even in extreme cold winters. • ON-OFF contact for starting the unit from an external switch. • Weekly disinfection cycle. • Possibility of manage hot sanitary water re-circulation or solar water integration (presence of a dedicated temperature probe, flow switch input and command for an external pump). • Electronic expansion valve for precise control • The pipeline intake/discharge of the air can be reduced from 177 to 160 mm by a reduction / diaphragm (not provided) inserted into the end of the pipeline.