Upper model of duct-type heat exchange ventilation system 'LWZ-280'
Japan Stiebel LWZ-280/280JE
A high air volume design that can accommodate spaces of up to approximately 270 square meters with just one unit. Both sensible heat exchange and total heat exchange types allow for the washing of heat exchange elements.
A new high-capacity model with a large airflow design has been introduced in the Japanese Stiebel heat exchange ventilation system. ■ Large Airflow Design Equipped with a high static pressure turbo EC fan motor. Even if pressure loss occurs, the motor automatically adjusts the rotation speed to maintain the set ventilation volume. ■ Both sensible heat exchange and total heat exchange elements can be washed The total heat exchange element uses a solid membrane. With high waterproof and moisture-permeable properties (allowing only water vapor to pass while blocking moisture), it is now possible to wash the heat exchange element of the total heat exchange type, which previously could not be washed. This keeps the heat exchange element clean for long-term use. ■ Built-in Preheater The wall-mounted type is the only one with a built-in preheater. By heating the incoming outside air before heat exchange, it maintains the planned ventilation volume and high heat exchange rate even in cold periods and regions. ■ Bypass Mode In summer, when the outside temperature is lower than indoors, it is possible to directly intake outside air without heat exchange, allowing for outside air cooling operation. The incoming outside air passes through a filter, just like in heat exchange ventilation, so there is no need to open windows to bring in clean outside air.
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basic information
LWZ-280 (sensible heat exchange type) / LWZ-280JE (total heat exchange type) ● Duct connection diameter φ160 / 180mm ● Adjustable air volume 60–350m³/h ● External dimensions W 690 / D 534 / H 997mm ● Power supply voltage single-phase 200V 50Hz/60Hz For details, please refer to the catalog or website.
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Applications/Examples of results
It is also recommended for clinics, schools, and other facilities besides residential use.
Detailed information
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Equipped with an intuitive intelligent controller as standard.
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Controller enlarged image
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Company information
"How to enrich people's lives with less energy and greater efficiency." Stiebel is a comprehensive manufacturer of residential equipment based in Holzminden, Germany, established in 1924 under this philosophy. Starting with electric water heaters, heat pumps, ventilation systems, and storage heating systems that have been manufactured since its founding, it is now globally recognized as a leading company in passive houses and renewable energy equipment. The Japan branch was established in 1986 and is headquartered in Shinagawa, Tokyo, also featuring a showroom. Since beginning the import and sale of European residential equipment, the company has been dedicated to providing energy-saving products while always being mindful of creating a "comfortable" living environment. We are responsible for localization to Japanese specifications, as well as creating proposals for ventilation and heating.