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Ventilation units for domestic application with heat recovery are used for comfort constant pressure ventilation of flats and family houses. We offer a coherent range of ventilation units DUPLEX EC4 for horizontal mounting position (including the very popular underceiling version with a depth dimension 280 mm) and DUPLEX ECV4 for vertical positioning in a building. |
Units for residential ventilation are available with an air-flow capacity from 150 mc/h to 550 mc/h, with EC type fans. Heat recovery efficiency is based on our own turbulent counterflow heat recovery cores up to 92 % efficient. Our own control system has an integrated web server that enables remote operation of the unit via the internet. |
DUPLEX EC4These units are used for horizontal mounting position. Based on foreign markets requirements we offer excellent depth dimension of 280 mm for underceiling position, EBM EC fans, 92 % turbulent heat recovery exchanger, 100 % by-pass damper, and two degrees of our own control system – digital control system with optional constant flow-function and integrated web server or cheaper analogue control system for less demanding projects with price accent. |
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DUPLEX ECV4These units are used for vertical mounting position. Also these units offer the same competitive advantages – excellent width dimension of 550 mm, EBM EC fans, 92 % turbulent heat recovery exchanger, 100 % by-pass damper, and two degrees of our own control system – digital control system with optional constant flow-function and integrated web server or cheaper analogue control system for less demanding projects with price accent. |
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Marketing Video DUPLEX EC4, ECV4
Marketing Catalogue DUPLEX EC4, ECV4
Benefits
New DUPLEX EC4 and ECV4 production line have very important competitive advantages concerning their construction and business philosophy that was coordinated based on requests of premium European markets.
Our Selection Software
ATREA s.r.o. offers a DUPLEX compact unit selection software for use by the design professionals.
The program is presently spread as a freeware.

