Combination boiler with preheating and display for DHW ecoTEC pure 286/7-2 Vaillant

Product description:

• Wall-mounted boiler with mixed condensation, model 2519978.
• Its dimensions are 72 cm high x 44 cm wide and 33.4 cm deep.
• Simple display and suitable for all customers.
• It incorporates a high-efficiency pump with high performance, several speeds with automatic operation, a stainless steel heat exchanger and an 8-litre expansion vessel.
• Low consumption when the boiler is not heated.
• Can be connected from your smartphone or tablet.

Technical specifications:

• Combustion system: pneumatic.
• Useful output range 80/60 °C: 7.5 - 24.0 kW.
• Useful power range 50/30 °C: 8.3 - 26.1 kW.
• Nominal efficiency 80/60 °C: 97.0%.
• Nominal efficiency 50/30 °C: 105.4%.
• Efficiency at 30% power: 107.8%.
• Heating:
  • Power setting range: 7.5 - 24.0 kW.
  • Maximum pressure: 3 bar.
  • Circulating water volume: 1,033 L/h.
  • Expansion vessel: 8 L.
• Domestic hot water:
  • DHW output: 28 kW.
  • Minimum flow rate: 1.7 L/min.
  • Instantaneous flow rate with ΔT=25K: 16.2 L/min.
  • Instantaneous flow rate with ΔT=30K: 13.5 L/min.
  • Minimum pressure: 0.3 bar.
  • Temperature range: 35-60º.