Effective ventilation rate of 99% (Class A1), high-end model of eco ventilation system (free design support available).
The "LWZ-130 Series" is a heat exchange ventilation system that achieves a maximum heat exchange rate of 93% by utilizing large hexagonal heat exchange elements. By integrating insulation materials into a single mold, it enhances thermal insulation and airtightness, achieving an effective ventilation rate of 99%. With precise airflow settings in increments of 5 m²/h, it allows for ventilation design tailored to the building, contributing to energy savings. The main casing is molded as a single unit, housing a compact yet high-performance motor and fan. It reduces noise while achieving a large airflow capacity suitable for areas of approximately 140 m² with just one unit. 【Features】 ■ Ceiling-mounted type developed for Japanese homes ■ Effective ventilation rate of 99% (Class A1) ■ Maximum heat exchange efficiency of 93% ■ Options for total heat exchange and sensible heat exchange
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basic information
【Other Features】 ■ Low noise design that allows for high air volume without being bothersome ■ Equipped with an intelligent controller that can be intuitively operated with a touch wheel ■ Features a "balance function" that continuously monitors the airflow and pressure on both the intake and exhaust sides, automatically adjusting the fan speed according to the situation ■ Allows for airflow settings by day and time ■ Temperature detection function that automatically stops operation when the temperature falls below the set level ■ Options available such as a drain-up pump and dedicated decorative panel 【Specifications】 ■ Applicable floor area: up to 140m2 ■ Installation method: ceiling embedded type ■ Duct diameter: φ125 ■ Adjustable airflow: 50–160m3/h (180m3/h in rapid ventilation mode) ■ External dimensions: W998xD517xH237mm ■ Power supply: 100V (50/60Hz) *For more details, please refer to the PDF document or feel free to contact us.
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P3
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For more details, please refer to the PDF document or feel free to contact us.
Detailed information
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Intelligent Controller ● Touch Wheel Type ● Fine Airflow Setting Function By allowing airflow settings in increments of 5 m³/h, optimal ventilation design for buildings can be achieved, reducing unnecessary ventilation and further enhancing energy savings. ● Weekly Programming Operation Function Airflow settings can be adjusted based on daily and hourly living patterns, enabling additional energy savings. ● Humidity Detection Function Even during low airflow operation when absent, the device will stop to prevent drying if the humidity falls below the set level.
Line up（2）
| Model number | overview |
|---|---|
| LWZ-130J | Heat exchange method: sensible heat type |
| LWZ-130JE | Heat exchange method: total heat type |
catalog（3）
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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, established in 1924 and headquartered in Holzminden, Germany. Starting with electric water heaters, heat pumps, ventilation systems, and storage heating systems, which have been manufactured since its inception, the company is now globally recognized as a leading company in passive houses and renewable energy systems. The Japan branch was established in 1986 and is located in Shinagawa, Tokyo, and also features a showroom. Since beginning the import and sale of European residential equipment, we have been dedicated to providing energy-saving products while always being conscious of creating a "comfortable" living environment. We are responsible for localization to Japanese specifications, as well as creating proposals for ventilation and heating.
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