Unical KON B 28 condensing boiler Low NOx methane complete with flue exhaust kit - New ErP Technical data according to dir. ErP Seasonal heating efficiency class A Sanitary seasonal efficiency class B XL load profile Emissions of nitrogen oxide NOx mg/kwh 58 Characteristics Min-nom useful power kW 4.56 - 28.5 Minimum/maximum HEAT INPUT kW 4.4 - 28 USEFUL EFFICIENCY at 30% of load % 108.5 EFFICIENCY CLASS (ex directive EEC 92/42) ★★★★ NOx class 5 Maximum absorbed power W 86 Dimensions (HxWxD) mm 900x680x486 Standard accessories The boiler is supplied complete with: Template for preparing sheet metal connections, which can also be ordered separately (code 00363171) N° 1 modulating circulator N° 4 dowels for fixing the boiler 3-litre DHW circuit expansion vessel (assembled) KON B Refined wall-mounted condensing boiler, KON B, offers a new form of comfort. In its DNA it has the KON technological platform, integrated with the 60-litre superfast “storage tank” in AISI 316 L stainless steel. It is designed to guarantee comfortable showers with supply at a constant temperature and for a long time, without being affected by “variations” caused from the insertion of other users. With the accumulation at 70°C , 50 liters of high temperature water are available, which can be mixed with cold water, which supply over 195 liters in the first 10 minutes with Δt 25K . After the boiler has been discharged, dispensing continues to remain at a constant 45°C over time. The user can obviously choose the delivery temperature using the control on the panel. The preparation of the kettle takes about 10 minutes from cold and the refilling, starting from 45°C, in less than 6 minutes. The sanitary priority system is based on the tried and tested complex with electric 3-way valve. A highly effi cient combination of hardware and software, which allows operation in high and low temperatures with differentiated priorities, combined with the excellent premix exchanger-condenser group, provides speed to bring the heating system up to speed and very high savings. Particular attention has also been paid to the reduction of noise emissions as well as to the insulation of the boiler to avoid unnecessary dispersions. KON B, the protagonist by Unical. Savings with the exclusive primary exchanger in Al/Si/Mg KON B employs, like all ”Scuola Unical” products, an original primary exchanger. It is made of a special Aluminium/Silicon/Magnesium alloy which ensures efficiency and resistance, so much so that it is guaranteed by Unical for 5 years. Thanks to the internal heat exchange configuration, efficiencies of up to 108.2% (ex dir. 92/42) can be reached in the condensing regime, which means great economic savings and very low environmental impact for the user, for better exploitation of the fuel. Wide power modulation This feature makes it possible to determine, thanks to the thermostat and on-board sensors, the right instantaneous power required, reducing the on-off phenomena responsible for high consumption. The homologation in the power band (Range Rated) gives the opportunity to fix the power supplied, adapting it to the needs of the system. The "ANTIFAST" system further reduces the on and off cycles, optimizing yields and costs. It is an electronic ignition retarder which intervenes after the boiler has been switched off due to the temperature being reached. Advantages: Quick set-up when turned on. Reduction of on-off cycles with reduction of consumption and wear of components. Modulating premix burner With electro-pneumatic control and constant combustion ratio, the “Flat” type burner ensures long life thanks to the low thermal and mechanical stresses and the physical inalterability of the FeCrAlloy fiber fabric, as well as an ideal propagation of heat by radiation thanks to its structure capable of developing a particularly soft and luminous flame. The "Quick release" release of both the upper plate and the bottom of the exchanger allows the complete removal of the combustion system together with the widely tested and updated complex of electronics and premixing system. The pneumatic gas solenoid valve and the fan, both modulating, are distinguished by their limited overall dimensions. Advantages: compactness and reduced acoustic emission wide modulation range 1:6.3 absolute operating safety due to the absence of turbulence The valve is designed to compensate for gas pressure fluctuations present in networks as well as stabilize the supply pressure independently of the suction pressure generated by the premix fan. Easily adjustable, it ensures an accurate air/gas combustion mixture (Low NOx) to guarantee high CO2 levels and favor condensation. High efficiency modulating circulator with deaerator It represents the state of the art in the high effi ciency standard. In line with the 2015 ErP directive, with less than 1W consumption in stand-by and only 45W in maximum operation, thanks to the wide modulation capacity, based on the request of the room thermostat and the temperatures detected by the sensors placed in delivery/return, automatically doses the boiler power to the system requirements. When preparing the domestic hot water boiler, it contributes positively to speeding up the times and reducing the on/off of the burner. Particularly silent and compact, it integrates perfectly with the safety valve, the adjustable by-pass and the drain cock. Inside the kettle Storage capacity of 60 litres, fully flanged, easy to inspect and insulated in self-extinguishing polystyrene. AISI 316L stainless steel Arrangement of the water-water coil in 2 extractable concentric spirals arranged in the lower part of the boiler. In this way, maximum heat exchange is obtained with the incoming cold water, which is injected by a special flow breaker which reduces the turbulence in the upper area where the hot water is drawn Length of the primary coil: 13 meters Exchange surface: 0.85 m2 Charging time from 12 to 74°C: about 10 minutes Emptying tap Water heating energy efficiency ηwh equal to 68.1% according to dir. Erp, which makes it a boiler capable of supporting demanding and intensive withdrawals, even over time. The magnesium anode protects the boiler from parasitic currents and confirms the 5-year guarantee. Healthy water thanks to anti-legionella: the very useful automatic electronic program provides, every 186 hours, a high temperature cycle (70°) which "sterilizes" the boiler, preventing any bacterial proliferation. Product Warranty All products for sale on our site are new and packed. The warranty on this item is 24 months from the date of purchase.

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Unical KONe C28 Low NOx condensing boiler complete with flue kit - NEW ErP Model: KONe 28C Energy efficiency: Seasonal efficiency class for heating A Declared load profile: XL Sanitary seasonal efficiency class: A Technical data: Nominal useful power: 28.9kW Seasonal heating energy efficiency ambient ηs 93% Useful thermal power in high temperature regime. (Tr 60 °C / tm 80 °C): 15.8kW Efficiency at nominal thermal power in high temperature regime (Tr 60 °C / Tm 80 °C) η4: 88.4% Useful power at 30% of nominal thermal power in low temperature regime (Tr 30 °C): 5.3 kW Efficiency at 30% of nominal thermal power in low temperature regime (Tr 30 °C) η1: 97.5% Annual electricity consumption QHE GJ: 49 Heating energy efficiency. of water ηWH: 85% Daily fuel consumption Qfuel : 23.05 kWh Sound power level indoors Lwa db(A) 55.2 Annual electricity consumption AEC: 402 kWh Specific sanitary water flow rate (Dt 30 °C): 13 l/min DHW production in cont. Dt 25 K (mixed): 15.5 l/min Expansion vessel capacity: 10 l Heating circuit pressure (min-max): 0.5-3.0 bar DHW circuit pressure (min-max): 0.5-6.0 bar IP X5D degree of protection NOx class: 6 Dimensions (HxWxD): 700x420x345mm; 37kg KONe KONe is a wall-hung condensing boiler with very low polluting emissions, thus falling within the new Class 6, the most restrictive currently in force. It is available in instant combined version. KONe has all the "Quality Stars" to satisfy every need: Exceptional modulation ratio up to 1:8 Efficiency >107% (ex dir. CE 92/42) ηs 93% (EU regulation 813/2013 - dir. ERP 2009/125/CE) Energy class A Primary exchanger in ultra-flat Al/Si/Mg Electronics with HWS “Hot Water Speed” function (vers. C) Low NOx class 6 (according to EN 15502-1) thanks to the fully electronic modulating premix burner with constant combustion ratio (both gas valve and fan) Production of hot water up to 13.3 l/min Dt 25 with special 12-plate (mod. 24 C) and 16-plate (mod. 28/35 C) exchanger in AISI 316L stainless steel "Pit stop" maintenance for technical assistance interventions "Soft touch" control panel with "Upgradable" protective closure via USB connection for diagnostics/programming with computer or dedicated handheld tool High efficiency modulating circulator HWS "Hot Water Speed" is the special KONe electronics that switches from heating to DHW function with burner and pump always active, improving user comfort who does not have to wait for hot water Management of 2 zones with 2 thermostats (modulating/on -off) thanks to the electronics that allow you to manage 2 heating zones at different temperatures (high for radiators and fan-coils, low for radiant panel systems) Sliding temperature programmed to operate with the lowest possible delivery temperature to help save energy Anti-overheating post-circulation automatically after the burner goes out, the boiler keeps the pump running for 5 minutes, preserving the components Chimney sweep function allows maintenance technicians to carry out the checks required by current standards in terms of efficiency and emissions Pump anti-blocking the blocking of the pump following long stops is avoided thanks to an automatic impulse of 5 sec. Everything like in a “Sim Card” All the operating characteristics of the boiler are memorized inside a SIM. The Unical Assistance Center is equipped with a handheld instrument with a 3" touchscreen that can be connected directly to KONe to develop the monitoring activity by speeding up the intervention times for solving any problems: data acquisition for a computer analysis monitoring in real-time operating parameters even remotely (from the office or PDA) management of "faults-history" “Pit stop” maintenance in less than 2 minutes KONe is the result of the experience of the Service and market suggestions, from which the Unical design staff has synthesized a technological complex that can be easily assembled and quickly disassembled. Product Guarantee All products for sale on our site are new and packed. The warranty on this item is 24 months from the date of purchase.

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Unical KON1 28C kW Methane or LPG Condensing Boiler Complete with Fume Exhaust Kit, various colors available - NEW ErP Energy efficiency: Seasonal efficiency class for heating A Declared load profile: XL Sanitary seasonal efficiency class: A Technical data: Nominal useful power: 28.9 kW Seasonal heating energy efficiency ambient ηs 93% Useful thermal power in high temperature regime. (Tr 60 °C / tm 80 °C): 15.8 kW Efficiency at nominal thermal power in high temperature regime (Tr 60 °C / Tm 80 °C) η4: 88% Useful power at 30% of nominal heat output in low temperature regime (Tr 30 °C) P1 kW: 5.3 kW Efficiency at 30% of nominal thermal power in low temperature regime (Tr 30 °C) η1: 97.9% Annual electricity consumption QHE GJ: 49 Heating energy efficiency. of water ηWH: 85% Daily fuel consumption Qfuel : 23.05 kWh Sound power level indoors Lwa dB(A) 55.2 Annual electricity consumption AEC: 402 kWh DHW production in cont. Dt 25 K (mixed): 15.5 l/min Expansion vessel capacity: 10 l Heating circuit pressure (min-max): 0.5-3.0 bar DHW circuit pressure (min-max): 0.5-6.0 bar IP X5D degree of protection NOx class: 6 Dimensions (HxWxD): 810x450x345 mm; 41kg Gas transformation kit inside documentation envelope. KON1 KON1 is the latest among the "furnishing boilers" that Unical presents in synergy with the ArtÙ Design Studio. Soft lines and an elegant front, available in different colours, enclose a latest generation condensing boiler running on methane or LPG, with instantaneous hot water production up to 18 l/min. KON1 can also be installed with a completely hidden flue system. The range includes 3 powers: 24, 28 and 35 kW. The exclusive Unical system of both hydraulic connections and the totally disappearing smoke outlet, allows an elegant installation and integration of KON1 in both modern and classic environments, avoiding unsightly exposed pipes. HWS “Hot Water Speed” is the new electronics of KON1 which switches from heating to DHW function with burner and pump always active, considerably improving the comfort of the user who does not have to wait for hot water. Secondary exchanger In AISI 316L stainless steel - with 12 plates (mod. 24) - with 16 plates (mod. 28 and 35) Particularly efficient because it is suitable for condensing boilers by exploiting their low temperature. Its "ecological" project is distinguished by a new design of the plates which allows for the transfer of a greater quantity of heat by making the most of the characteristics of stainless steel. Outstanding modulation ratio up to 1:8 Efficiency >107% (ex dir. CE 92/42) ηs 93% (EU regulation 813/2013 - dir. ERP 2009/125/CE) Energy class A Primary exchanger in ultra-flat Al/Si/Mg Electronics with HWS “Hot Water Speed” function Low NOx class 6 (according to EN 15502-1) thanks to the modulating premix burner Hot water production up to 18.3 l/min Dt 25 with special heat exchanger Management of 2 temperature zones (high/low) by applying a second on/off thermostat "Pit stop" maintenance and convenient internal control panel for technical assistance interventions EASYr : remote control (standard) with chronothermostat functions, applicable wirelessly to the wall or free-standing with support High efficiency modulating circulator Prepared for future applications in systems and suitable to meet the requirements of the new installation standards No controls visible on the boiler, but EASYr (standard) which, without wires, performs the dual function of chronothermostat and remote control inside the home. Two-way radio frequency communications; Operating parameters control; Weekly programming; Room antifreeze function; Can be combined with external probe; Applicable to the wall or free-standing with support Product Guarantee All products for sale on our site are new and packed. The warranty on this item is 24 months from the date of purchase.

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