Using air as energy source Stiebel Eltron provides efficient heat pumps

3/4/16, 10:14 AM -

Cosy warmth from the air, while others turn on their central heating. The WPL 15 ACS air-water heat pump, designed for outdoor use, is still exceptionally efficient even at temperatures well below freezing.

System layout within the building.

High flow temperatures mean that conventional radiators can be used. For outdoor installation in particular, low operating noise is essential, especially where neighbours are concerned. The quieter the heat pump, the smaller the required clearance from the next residential building.

The main features are:

  • with energy efficient inverter technology for high flow temperatures even during cold winters,
  • suitable for buildings set closely together thanks to low operating noise,
  • can be combined with a solar thermal system,
  • integral cooling function,
  • high energy efficiency class A++ even at a flow temperature of 55 degrees Celsius.

The output at A2/W35 (EN 14511) reaches 4.23 kilowatt, at A-7/W35 6.86 kilowatt. The coefficient of performance at A2/W35 is 3.88, at A-7/W35 is 2.83. The sound power level (EN 12102) is very low (55 dB). The compressor is connected to 230 voltage grid. The system weight is 140 kilogram. (HS)