KONe Condensing, totally premix, Low NOx, room sealed, wall hung gas boiler, with electronic ignition and modulating pump, - Isolation Protection IPX5D – also for outdoor installation Patented boiler body in aluminium-silicon-magnesium alloy Ignition and flame detection with just one electrode Modulation ratio 1:8 Totally premixed burner with constant, fully electronic combustion ratio and modulating (both, the gas valve and the fan). Automatic combustion feed-back through the electrode that controls, constantly, the combustion quality Adjustment of output according to heating request HWS “Hot Water Speed”: to eliminate the delay in D.H.W. production D.H.W. stainless steel plate heat exchanger, with 12 plates (for mod. 24), 14 plates (for mod. 28-35) Management of two heating zones, H/L temperature with different priority Electronic anti-frost protection Operation guaranteed up to -15°C Pump anti-jamming function Pump over-run function Safety limit thermostat Flow temperature sensor Return temperature sensor D.H.W. temperature sensor High efficiency modulating pump according to the heat request, managed by the electronic PCB, according to the ErP directive C.H. 8 litres expansion vessel Automatic air vent Minimum water pressure switch Pressure safety valve - 3 bar Touch screen panel board with connection for diagnostics and programming through PC or portable programmer Panel board magnetic door Manometer Multifunction keyboard with silicon membrane Burner and heat exchanger inspection openings with quick release Paper mounting jig for prearrangement of hydraulic connections Screw anchors for boiler fixing Siphon for condensate evacuation Options: - Covering for hydraulic connections - Regulation accessories - External temperature sensor KONe EXT for outdoor installations (optional): place the order for the model KONe (24, 28, 35) + KIT FOR OUTDOOR INSTALLATION (the rubber top) + MOUNTING JIG. + Regulation accessories