Unical KONm INC 24 kW Built-in Condensing Boiler Complete with Flue Gas Exhaust Kit

Technical Features

• Model

  Unical KONm INC 24 kW Built-in Condensing Boiler Complete with Flue Gas Exhaust Kit

• Energy Efficiency

  Seasonal heating efficiency class A
  Declared load profile: XL
  Seasonal health efficiency class: A

• Performance

  Nominal useful power kW 23.6
  Seasonal space heating energy efficiency ηs 92%
  Useful thermal power in high temperature regime (Tr 60 °C / tm 80 °C): 12.7kW
  Efficiency at nominal thermal power in high temperature regime (Tr 60 °C / Tm 80 °C) η4: 87%
  Useful power at 30% of the nominal thermal power in low temperature regime (Tr 30 °C): 4.2kW
  Efficiency at 30% of nominal thermal power in low temperature regime (Tr 30 °C) η1: 96.7%
  Annual electricity consumption QHE GJ: 40
  Water heating energy efficiency ηWH: 86%
  Daily fuel consumption Qfuel: 22.0 kWh
  Sound power level indoors Lwa db(A) 51
  Annual electricity consumption AEC: 400kWh
  Specific flow rate of domestic hot water (Dt 30 °C): 11.2 l/min
  DHW production in cont. Dt 25 K (mixed): 13.2 l/min
  Expansion vessel capacity: 8 litres
  Heating circuit pressure (min-max): 0.5-3.0 bar
  Sanitary circuit pressure (min-max): 0.5-6.0 bar
  IP X5D protection rating
  NOx class: 6

• Dimensions

  Box dimensions (HxWxD): 1140 x 550 x 260 mm

General Features

• KON M INC
  
  
  
  KONm presents all the “Quality Stars” to satisfy every type of need:
  
  Exceptional modulation ratio up to 1:8 Efficiency >107% (ex EC dir. 92/42)
  Ultra-flat Al/Si/Mg primary exchanger
  Electronics with HWS “Hot Water Speed” function (vers. C)
  Low NOx (class 5 according to EN 297 and EN 483) thanks to the modulating premix burner
  Hot water production up to 13.3 l/min Δt 25 with special 12-plate (mod. 24 C) and 16-plate (mod. 28/35 C) stainless steel exchanger. “Pit stop” maintenance.
  Simple and intuitive control panel
  Ready for future applications in systems and suitable to meet the requirements set out in the new installation standards
  High efficiency modulating circulator
  
  
  
  Managing two zones with two KON m thermostats is versatile. Ideal for all systems, thanks to the electronics that allow you to manage two heating zones at different temperatures (high for radiators and fan coils, low for radiant panel systems) by controlling them with both modulating and dedicated on-off thermostats.
  The 15-second anti-overheating post-circulation maintains thermal balance between the flow and return lines, even after intense DHW draws, while in heating mode, lasting 5 minutes, it allows all residual thermal inertia to be disposed of.
  Sliding temperature operation for maximum management economy
  Antifreeze protection kicks in at 5°C and activates both in domestic hot water and heating, bringing the boiler temperature to 15°C. This prevents the KON m from freezing if low temperatures persist in the room where it is installed. If there is a gas shortage, a blockage warning will appear on the display.
  Anti-lock pump system prevents the pump from blocking after long periods of inactivity thanks to an automatic 5-second pulse that the electronics send to the engine every 24 hours of inactivity.
  Chimney sweep function: easier combustion adjustment than ever before. Pressing the unlock button for more than 5 seconds allows operation at minimum or maximum power for 15 minutes, allowing for accurate combustion analysis.
  
  
  
  Drawing on the company's manufacturing synergies, KONm incorporates some of the company's high-end features, such as the low-water content Al/Si/Mg primary heat exchanger from the "Scuola Unical" brand, the unique rapid inspection mechanism for vital combustion system components, and the well-proven yet updated electronics and electro-pneumatic pre-mixing system already in use on other ranges. A simple, high-tech "ErP Ready" solution, ideal for consumers approaching high-energy recovery technologies and for installers seeking simple yet innovative solutions for replacement systems or new construction with a low environmental impact. KONm is designed by Unical.
  Exclusive Al/Si/Mg exchanger. It is made of a special aluminum/silicon/magnesium alloy that ensures efficiency and resistance, so much so that it is guaranteed by Unical for a full 5 years. Thanks to the internal heat exchange configuration, efficiencies of over 107% are achieved in condensing mode, which means significant cost savings for the user and a very low environmental impact. The 28-35 versions are suitably larger.
  Modulating circulator with deaerator. It represents the state of the art in high efficiency. In line with the 2015 ErP Directive, with less than 1 W of standby power and just 45 W at maximum operation, thanks to its extensive modulation capacity, based on the room thermostat's request and the temperatures detected by the flow/return sensors, it automatically adjusts the boiler's power to the system's needs. Particularly quiet and compact, it integrates with the safety valve, bypass, and drain valve.
  
  
  
  Quick release condensate drain manifold
  
  Fan and Electro-pneumatic Gas Valve The premixing system consisting of a pneumatic gas solenoid valve and modulating fan is distinguished by its compact size. Advantages:
  compactness and silence
  wide modulation range 1:8
  absolute operating safety due to the absence of turbulence
  low thermal and mechanical stress, therefore long-lasting, thanks to its inalterability.
  The valve is designed to compensate for gas pressure fluctuations in the network and stabilize the supply pressure independently of the suction pressure generated by the premix fan. The 28/35 version is equipped with a silenced air intake to improve acoustic performance and a larger air intake manifold. Easily adjustable, it ensures an accurate air/gas combustion mixture to guarantee high CO2 levels and promote condensation with very low CO and NOx levels. In short, the monoblock is easy to maintain and accessible.
  Exchanger cleaning 1 minute and 46 seconds!
  KONm is the result of the Service's experience and market suggestions, from which the Unical design staff has synthesised a technological complex that is easily assembled and quickly disassembled.