Local ventilation unit with heat recovery based on the principle of varying direction of air flow

Unit body KORASMART TUBE is installed in a tube passing through the perimeter wall and connection the interior and exterior. Upon acitvation, the fan inside the unit turns from the interior to exterior, so the evacuated stale air charges the heat exchanger. Approximately after a minute, the direction of the rotation switches back and the cold supplied air takes the accumulated heat from the exchanger. This process then repeats continuously. The continuous suplly of fresh air requires two unis installed in the room, opposite each other. With only one unit the direction of air flow changes in regular intervals.

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depth 63 mm

depth 63 mm

height 279 mm

height 279 mm

šířka 279 mm 

šířka 279 mm 

air power output from 15 to 45 m3/h

air power output from 15 to 45 m3/h

KORASMART TUBE 2400 we offer these in 1 alternative

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Dimensions (H × W × D) (mm)
279 × 279 × 63
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Heat output and technical information

Technical Data

KORASMART TUBE 2400 | korasmart_tube.png
H: Height (mm) 279
Width (mm) 279
Depth (mm) 63
Level 1
Level 2
Level 3
Air power output with a fan
15 m3/h*
32 m3/h*
45 m3/h*
Noise level (DIN EN ISO 3745,at 8 dB room insulation)
LₚA = 25 dB (A)
LₚA = 38 dB (A)
LₚA = 46 dB (A)
Power input
2,1 W
2,9 W
4,3 W
Material / color Plastic / white, matt
Filter type G3
Heat recovery efficiency up to 90 %
Electrical connection 230 V ~ / 0,15 A
Noise absorption (DIN EN 20140-10) 35 dB

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