3 way electric diverter valve (also heating only models)
Stainless steel premixing burner
Stainless steel water/flue heat exchanger
Stainless steel enhanced DHW exchanger to ensure condensation also in DHW mode (Combi models)
Modulating fan with electronic speed adjusting system
Automatic by-pass
High efficiency full modulating pump of the heating circuit with built-in air vent
System to prevent pump and diverter valve sticking operating every 24 hours
Heating circuit relief valve set at 3 bar
Thermoregulation system
Built-in climatic regulation (outdoor sensor available as optional)
Control of multi-zones system option
Control system
Overheat limit thermostat of the water/flue exchanger
Hydraulic pressure switch to prevent boiler operating in event of low water
Safety NTC sensor against flues overheat
Electronic temperatures control by NTC sensors
Full anti-frost device
Electronic thermometer
Digital heating circuit pressure gauge
