GDTS Products Zentrale Lüftungsgeräte DL 50 WA2 image

DL 50 WA2.

Decentral domestic ventilation unit with
heat recovery up to 55 m³/h air volume flow.

Economical ventilation with no major effort.

Mounted directly on the external wall, the DL 50 WA2 decentral ventilation system is ideal for retrofitting and ventilation. Particularly with retrospective building insulation, this enables individual rooms to be aerated and ventilated in a targeted way. The EC fans are particularly quiet and thus also provide a high level of comfort. A cross-countercurrent-flow heat exchanger recovers the heat in the exhaust air to heat up the outside air. In winter, the ice protection function prevents the heat exchanger from freezing.

  • Targeted and controlled aeration and ventilation of individual rooms. For a healthy and pleasant indoor air at any time of year.
  • Quick, cost-effective installation. Ideal for renovations and retrofitting – particularly for insulation measures.
  • Extremely efficient. Integrated heat exchanger uses the heat from the exhaust air to warm the fresh supply air. Continuous and comfortable heat recovery via constant volume flow.
  • Lasting comfort. Quiet fans, low maintenance requirements, an attractive service-package with extended warranty.
  • Guaranteed hygienic – also suitable for allergy sufferers. Effective pollen protection thanks to the high filter quality. Helps to prevent mould formation – and makes a valuable contribution to the long-term maintenance of the building structure.

Technical data.

Air volume flow: 15/30/45/55 m³/h

Energy efficiency category*: A

Heat exchanger: Cross-countercurrent flow

Degree of heat recovery: max. 89 %

Heat supply rate: max: max. 82 %

Standard sound level difference: 51 dB

Sound pressure level (levels 1/2/3/4): 8,1/21,1/28,6/33,5 dB (A)

Air filter class: F7/G4

Dimensions (W x H x D): 340 x 340 x 320 mm

Wall thickness
(without adjacent room connection): min. 320 mm

*Range of energy efficiency category from A+ to G

Important documents for:

All series models:


GDTS wall sleeves and exterior wall panels for DL 50 ventilations image

Wall sleeves and
exterior wall panels.

To install the DL 50 ventilation units, simply opt for one of the different wall sleeves – round or square. With visually appealing exterior wall panels and integrated condensate drainage.

The DL 50 Q2 model allows the connection of two ventilation pipes to the additional supply air or exhaust air duct in one adjoining room.

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