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Comfort domestic ventilation system
CWL Excellent 300/400

Comfort domestic ventilation system
Model / Performance
  • CWL-300 Excellent
  • CWL-400 Excellent
  • Key Facts
  • Specification
  • Downloads
  • The comfort mechanical ventilation system from Wolf provides convenient, energy saving ventilation all year round.
  • Suitable for apartments, detached houses and apartment buildings as well as offices.
  • Using the cross- and countercurrent heat exchanger, heat is withdrawn from the extract air and transferred to the fresh supply air.
  • Compact design, for wall mounting
  • Clean, pollen-free fresh air – ventilation with your windows closed, cutting out street noise (not only beneficial for those suffering from allergies)
  • Removable plastic cross- and countercurrent plate heat exchanger
  • Bypass as standard
  • Automatic frost protection control
  • Constant flow fans
  • Low energy consumption due to DC fans
  • BM-2 for operation (optional)
  • Electric preheating coil 1000 W integrated in unit
  • Category G4 filter; F7 as optional accessory
  • Unit fully wired.
  • Filter change requirement indicated on the unit, programming unit or 4-step switch
  • DIBt approval and passive house certificate
technical drawing
Please choose model
Comfort domestic ventilation system CWL Excellent 300/400
Type CWL CWL-300 Excellent CWL-400 Excellent
Energy efficiency class A A
Max. air handling rate at 150 Pa m³/h 300 400
Max. heat provision efficiency % 89 93
Height mm 765 765
Width mm 677 677
Depth mm 564 564
Duct connection diameter mm 160 180
Filter category G4 (F7 accessories) G4 (F7 accessories)
Power factor Cos φ 0,37 - 0,51 0,38 - 0,61
Power consumption W 3 - 138 3 - 172
Power consumption W 58 (225m³/h and 100 Pa) 84 (300m³/h and 100 Pa)

(without preheating coil)

Weight kg 38 38
IP rating IP 30 30
Electrical connection 230 V / 50 Hz 230 V / 50 Hz
Comfort domestic ventilation system CWL Excellent 300/400
CWL Excellent 400 ErP label/data sheet
CWL Excellent 300 ErP label/data sheet