Wall hung, Low NOx (class 6), condensing gas boiler, with total premix burner - room sealed - electronic ignition and continuous modulation, with D.H.W. production, IPX5D, Certified ErP Class A
Certified ErP class A+ System (ηs > 98%) with optional “A+ KIT” composed by wireless modulating room thermostat + outdoor sensor compensation (Class VI +4%)
Output: 20 kW heating / 33 kW D.H.W.
- High soundproofing: only 39 dB (front and side panels with double high density plastic coating)
- Patented Heat Exchanger/Condenser in Al/Si/ Mg alloy
- Electronic ignition and flame control through a single electrode
- Modulation ratio until 1: 8
- Total premix burner with constant combustion ratio with electropneumatic modulating gas valve and modulating fan
- Regulation of minimum output in heating mode
Secondary plate heat exchanger in stainless steel, with 18 plates with the “thermal length” optimized for the condensation
- Quick DHW production, thanks to the increase of the plates number of the DHW heat exchanger
- HWS “Hot Water Speed”: to eliminate the delay in DHW production
- Two zones Management: high / low temperature with differentiated priority
- Electronic antifreeze protection
- Guaranteed operation up to -15°
- Pump anti-jamming function
- Pump overrun function
- Safety limit thermostat
- Flow temperature sensor
- Return temperature sensor
- D.H.W. temperature sensor (only for model K+ “C”)
- High efficiency modulating pump directive conforming to the Erp 2015
- Expansion vessel of 10 litres capacity
- Automatic air vent
- Safety pressure switch against the lack of water
- Safety pressure relief valve at 3 bar
- Panel board with potentiometric temperature adjustment and functions selector equipped with display
- Manometer
- Burner inspection and heat exchanger cleaning systems through “quick release”closings
- Paper mounting template for the predisposition of hydraulic and gs connections
- GPL conversion KIT included
Optional:
- A+ kit (composed by wireless modulating room thermostat + outdoor sensor compensation (Class VI +4%)
- Case of connections coverage
