Chaffoteaux Mira Advance Link Gas Condensing Boiler D2 25kW

Maximum Spin Tech Performance:

• New single loop stainless steel primary exchanger
• Passage sections increased by 142% over previous version
• Seasonal efficiency at 94%
• Class A+ thanks to standard thermoregulation accessories
• Performance certified by the TÜV RHEINLAND Group

Maximum Comfort:

• 1:10 modulation ratio
• Electronic combustion control E-Burning System
• SRA function
• Gas conversion from the technical menu without the need for a kit
• Chaffolink connectivity integrated in boiler
• Outdoor temperature from the internet thanks to integrated connectivity
  
   

Ease of installation:

• Installation in partially protected places
• Flue exhausts 80, 60, 50 mm and kit for compatibility with positive pressure (C10) collective flues.
• Intuitive electrical connections.
• Natural gas, LPG and propane air operation without the need for a kit. Transformation takes place thanks to combustion control by selecting the type of gas from the technical menu
  
   

Energy-saving and environmentally friendly:

• Compatible with mixtures of hydrogen 20% H2
• Low pollutant emissions, NOx Class 6

Features:

• Max/min nominal heat input in heating (Hi) Q 22/2.6 kW
• Max/min rated heat flow in heating (Hs) Q 24.4/2.9 kW
• Max/min rated heat flow in DHW (Hi) Q 26.0/2.6 kW
• Max/min rated heat flow in DHW (Hs) Q 28.9/2.9 kW
• Max/min heating output (80°C-60°C) P 21.5/2.5 kW
• Max/min heating output (50°C-30°C) P 23.6/2.7 kW
• Max/min domestic heating output P 24.9/2.5 kW
• Combustion efficiency (at flue gas) 97.9%
• Efficiency at rated heat input (60/80°C) Hi/Hs 98.2/88.4%
• Efficiency at rated heat input (30/50°C) Hi/Hs 107.3/96.6%
• Efficiency at 30 % of Qn with return at 30°C Hi/Hs 109.8/98.9%
• Efficiency at idle (60/80°C) Hi/Hs 95.1/85.6%
• Losses at chimney operating burner 2.1%
• Residual evacuation head Pa 100
• NOx class 6
• Flue gas temperature (G20) (80°C-60°C) 61 degrees
• CO2 content (G20) (80°C-60°C) 8.7%
• CO content (0%O2) (80°C-60°C) ppm 112
• O2 content (G20) (80°C-60°C) 5.0%
• Maximum flue gas flow rate (G20) (80°C-60°C) 44.1 kg/h
• Excess air (80°C-60°C) 31%.
• Condensate pH 3.2
• Max amount of condensate 2.4 l/h
  
   

Heating circuit:

• Expansion tank precharge pressure 1 bar
• Maximum heating pressure 3 bar
• Expansion tank capacity 8 liters
• Min/max heating temperature (high temperature range) 35/82 degrees
• Min/max heating temperature (low temperature range) 20/45 degrees
  
   

Sanitary Circuit:

• Min/max DHW temperature 36/60 degrees
• Specific flow rate in DHW (10 min at ?T=30°C) 12.8 l/min
• Instantaneous quantity of hot water ?T=25°C 15.4 l/min
• Instantaneous quantity of hot water ?T=35°C 11 l/min
• Minimum hot water withdrawal 2 l/min
• Max/min domestic water pressure 7/2 bar
  
   

Electrical data:

• Supply voltage/frequency V/Hz 230 / 50
• Total electrical power consumption 83W
• Energy efficiency index of the circulator EEI 0.23
• Minimum ambient operating temperature (-5°C with standard antifreeze heater kit code 3318949) >0 Degrees
• Electrical system degree of protection X5D
• Weight 32 kg
• Dimensions: 400x745x315 mm
  
   

Connections:

• Plant delivery Ø 3/4 gas
• Sanitary outlet Ø 1/2 gas
• Gas inlet Ø 3/4 gas
• Sanitary inlet Ø 1/2 gas
• System return Ø 3/4 gas.