Baxi luna duo-tec e 28kw condensing boiler - lpg/methane

Panel with digital controls

The Duo-tec E range of boilers is equipped with a new digital control panel with backlit LCD display again, which is clearer and easier to use thanks to dedicated and independent buttons for adjusting the temperature of domestic water and heating. The display allows you to view all information and set operating parameters intuitively and immediately.

Efficiency and savings. Wide modulation range:

greater efficiency given by less switching on and off: with a high modulation ratio, the reduction of continuous on/off cycles results in a significant reduction in consumption (by 8-10%) and an equal reduction in pollutant emissions

adjustment of the thermal power produced to the power dissipated, thus avoiding excessive overheating/cooling of rooms

GAC Gas Adaptive Control is an innovative system that, thanks to new control electronics and a new electronic gas valve, ensures automatic combustion control to constantly maintain maximum efficiency values.

Advantages:

• no manual intervention - reduced measurements, calibrations
• with this system, the boiler self-adjusts to the quality of the gas (methane) and the length of the flue pipes while maintaining constant efficiency
• the boiler also constantly self-adjusts to maintain maximum efficiency values promoting a reduction in gas consumption and generating less pollution due to the continuous control of emissions.

Full modulation pump with de-aeration. The circulating pump can operate at maximum speed, minimum speed or in "automatic" mode: in the latter case, the speed (min./max) will be selected so that the flow/return ∆T in heating remains constant at 20°C, thus ensuring a significant reduction in pump consumption and, given the lower mechanical stresses (compared to a pump that always operates at maximum speed), also in maintenance costs.

• When first turning on, we recommend activating the automatic de-aeration function. The function makes it possible to eliminate the presence of air in the heating circuit and thus avoid possible boiler blockages, system overheating, etc.

Guidelines when replacing a conventional boiler with a new condensing boiler: There are two main issues that can be encountered:

• Flues and flue outlet ducts
• Condensate discharge

For condensing boilers, the novelty is brought by low flue gas temperatures that allow the use of specific plastic materials; however, in the presence of existing 316 stainless steel flues, properly installed and with gaskets suitable for receiving wet flue gases, there are no problems and they can be safely reconnected to the new boilers while it is absolutely not up to code to use aluminum flues or smoke pipes. In fact, aluminum is a metal that does not resist acidic condensates in flue gases.

Main features Luna Duo-Tec E 28:

• new modern and elegant design for the entire range
• wide 1:7 modulation range greater efficiency and quiet operation
• GAC (gas adaptive control): automatic combustion control
• digital control panel with large backlit LCD display
• prearrangement for coupling with Baxi integrated solar system
• new cover kit: possibility of outdoor installation in partially protected places (optional)
• connection to Ø50 mm rigid and flexible exhaust pipe: solutions for chimney renovation - for mod. 24 kW total length (exhaust+suction) 40 meters
• compact dimensions: 700x400x299 mm
• antifreeze function and IPX5D degree of protection
• DUO-TEC E: compatibility with Baxi Mago (accessory on request) for remote boiler control