Condensing boiler with DHW storage Bluehelix Tech RRT 28 K50 M

Condensing wall-hung boiler with stainless steel domestic hot water storage Ferroli Bluehelix Tech RRT 28 K50 M

The new range of BLUEHELIX HITECH boilers is further completed with 50-litre stainless steel sanitary storage versions able to meet the demands of the most demanding customers in terms of domestic water production and beyond.

The new user interface with “capsense” technology, without mechanical keys, is equipped with a 2.8” graphic display, allowing the user to interact with the product in an easy and extremely simple way.

Thanks to the energy efficiency of room heating ηs 94%, among the highest in its category (Class A ErP, scale from G to A++) and thecombination with the Connect remote control, able to read the outdoor temperature directly from the internet, it reaches the energy class of system A+ (scale from G to A+++).

Thanks to the “Hydrogen plug-in”system, one of its most important innovations, it is already able to regulate itself to work with mixtures of natural gas and hydrogen, which will soon arrive in Europe, to combat global warming.

Designed to fully meet the demands of a “robust” product from every point of view thanks to the high-pass primary heat exchanger able to guarantee maximum efficiency and reliability over time also, and not only, replacing old generators in particularly dirty systems.

The particularly careful design of BLUEHELIX HITECH RRT K 50 has made it possible to achieve significant values in terms of quietness and acoustic comfort, so much so that it could almost be difficult to distinguish the background noise of a house from the noise produced by the boiler during normal operation.

It will be difficult to tell whether the boiler is on or off from its noise, as it used to be on the old generations of boilers, because the on/off transistors have also been optimised according to acoustic comfort.

Special attention was also paid to design, creating a 3 piece removable shell, which descends to cover the pipe connections.

- Boiler with high thickness stainless steel primary exchanger, with increased passages (at the top of the category) to guarantee durability and reduced maintenance, maintains high efficiency even on old plants with oxidation and dirt

- Thanks to the combination of the CONNECT modulating remote control and the reading of the external temperature directly from the internet, it reaches the maximum efficiency of ethicalenergy A+ (scale from G to A+++)

- MC²: Multi Combustion Control, new combustion system with patented gas-adaptive technology of industrial derivation for a better adaptability of use to varying conditions of the gas network (e.g. fluctuations or reduced pressures)

- M.L.R: Methane Lpg Ready, through a simple configuration the boiler is able to operate both methane and LPG without the use of additional conversion kits

- Exclusive heat exchanger-burning system with selfcooled door (without insulation): simplifies maintenance and reduces cost thanks to fewer deteriorated parts

- Production of domestic hot water with 50-litre stainless steel storage

- Arrangement for recirculation couplings (present in the accessory: coupling connection kit)

- Hydraulic connections covered by the boiler mantle

- Large multifunction graphic display with backlight for easy and correct parameter setting

- By-pass as standard

- Easily adapts to load conditions thanks to thewide modulation range that can reach up to 1:10 (mod. 34)

- Particularly suited for operating in flues requiring “heavy-duty” pipes thanks to approval for operation with flue gas exhaust pipes with a diameter of 50mm

- F.P.S: Flue Protection Systems. The smoke clapper valve fitted as standard on the boiler allows easy connection to collective pressure flue systems (e.g. in renovations), in accordance with UNI 7129 standard

- Designed to simplify and facilitate normal maintenance and cleaning.

Specifications

Heating max / min thermal flow rate kW 24.5 / 3.5
Max/min thermal output in heating (80/60°C) kW 24.0 / 3.4
Max/min thermal output in heating (50/30°C) kW 26.0 / 3.8
Max sanitary thermal flow rate kW 28.5
Min sanitary thermal flow rate kW 3.5
Max/min thermal output in DHW kW 28.0 / 3.4
Pmax Efficiency (80-60°C) % 98.1
Pmin Efficiency (80-60°C) % 98.0
Pmax Efficiency (50-30°C) % 106.1
Pmin Efficiency (50-30°C) % 107.5
Efficiency 30% % 109.7
Supply gas pressure G20 mbar 20
Max gas flow rate G20 m3/h 3.02
Min gas flow rate G20 m3/h 0.37
CO2max / min G20 % 9.3 / 9.2
Supply gas pressure G31 mbar 37
Gas flow rate max / min G31 kg/h 2.23 / 0.27
CO2max / min G31 % 10.3 / 9.8
NOx emission class (EN 15502-1) - 6
Max Heating Operating Pressure bar 3
Min Heating Operating Pressure bar 0.8
Max Heating Temperature °C 95
Heating water content litres 3.8
Heating Expansion Tank Capacity litres 10
Heating expansion tank preload pressure bar 0.8
Max Domestic Hot Water Operating Pressure bar 9
Min Domestic Hot Water Operating Pressure bar 0.3
Domestic Hot Water flow rate ∆t 25°C l/min 16.1
Domestic Hot Water flow rate ∆t 30°C l/min 13.4
Degree of protection (IEC 60529) IP X4D
Supply voltage V/Hz 230V / 50Hz
Electric power absorbed W 82
Empty weight kg 62