The VA 75 ventilation system<\/strong> is designed for continuous operation in shelters with a medium occupancy level. It ensures a reliable supply of fresh air while simultaneously extracting used indoor air in a controlled manner. This maintains stable oxygen levels and continuously reduces CO\u2082 concentration. <\/p>\n In normal operation, ventilation is provided via fresh air intake. In an emergency, the system can be switched to gas filtration mode<\/strong> quickly and without tools. The changeover is performed by disconnecting the flexible hoses, enabling effective air filtration in case of chemical, biological, or other hazardous contamination. <\/p>\n All VA 75 ventilation systems supplied by BSSD are manufactured in accordance with the directives of the Federal Office for Civil Protection (BABS)<\/strong> and are type-tested by LABOR SPIEZ of the Swiss Federal Department of Defence (VBS).<\/strong><\/p>\n Approvals<\/strong> (depending on manufacturer): BZS T 87-003, BZS TE 98-005<\/p>\n The applicable approval depends on configuration and manufacturer. BSSD ensures that only certified and approved systems are used. <\/p>\n The VA 75 ventilation unit is a compact standalone device suitable for wall mounting inside shelters or installation in separate technical rooms. Multiple units can be operated in parallel if required. <\/p>\n Connection is made to a shared air intake with explosion protection valves<\/strong> and integrated air filter. Within the VA series, installation dimensions are standardized, which simplifies planning, replacement, and system expansion. <\/p>\n Differences between configurations\u2014depending on the manufacturer\u2014primarily relate to:<\/p>\n Pre-filters<\/p>\n<\/li>\n Airflow measuring tube<\/p>\n<\/li>\n Gas filter configuration<\/p>\n<\/li>\n<\/ul>\n The VA 75 ventilation system is designed for both electric operation and full manual emergency operatio<\/strong>n. Standard equipment includes: <\/p>\n Ventilation unit with electric motor<\/p>\n<\/li>\n Reduction gearbox<\/p>\n<\/li>\n Dynamo with sealed 5-watt emergency lamp<\/p>\n<\/li>\n On\/off switch<\/p>\n<\/li>\n Attachable hand crank for manual operation<\/p>\n<\/li>\n Airflow measuring tube with throttle valve<\/p>\n<\/li>\n Hose pair with coupling and four clamps<\/p>\n<\/li>\n Operating manual with protective cover <\/p>\n<\/li>\n<\/ul>\n In case of power failure, manual operation is fully possible. The integrated emergency lighting is powered by the dynamo, ensuring safe operation under outage conditions. <\/p>\n Optional equipment (depending on manufacturer):<\/strong><\/p>\n Electric air heater<\/p>\n<\/li>\n Non-return valve<\/p>\n<\/li>\n Non-return valve<\/p>\n<\/li>\n Mounting anchors<\/p>\n<\/li>\n Alternative voltage and frequency configurations<\/p>\n<\/li>\n<\/ul>\n The VA 75<\/strong> ventilation system is designed for shelters with 14 to 25 occupants<\/strong> and is particularly suitable for:<\/p>\n Larger private shelters<\/p>\n<\/li>\n Multi-family residential buildings<\/p>\n<\/li>\n Commercial and institutional shelters<\/p>\n<\/li>\n Medium-sized public shelters<\/p>\n<\/li>\n<\/ul>\n Its higher airflow capacity provides a balanced solution between compact design and performance.<\/p>\n Floor area per occupant: \u2265 1 m\u00b2<\/strong><\/p>\n<\/li>\n Floor area per VA unit: \u2265 1 m\u00b2<\/strong><\/p>\n<\/li>\n Room volume per occupant: \u2265 2.5 m\u00b3<\/strong><\/p>\n<\/li>\n Minimum shelter size: \u2265 8 m\u00b2<\/strong><\/p>\n<\/li>\n Minimum shelter width: 2.0 m<\/strong><\/p>\n<\/li>\n Minimum shelter height: 2.0 m<\/strong><\/p>\n<\/li>\n Maximum occupants per shelter compartment: \u2264 50<\/strong> <\/p>\n<\/li>\n<\/ul>\n Additional planning must also consider furnishing and protective equipment such as<\/span> blast doors<\/a>, protective covers<\/a>, or dry toilets<\/a>.<\/span><\/strong><\/p>\n <\/p>\n We are happy to advise you on selecting the appropriate ventilation system as well as on special requirements and accessory solutions.<\/strong><\/p>\n \n <\/p> Standards, Certification, and Type Approval<\/h3>\n
Design, integration, and system compatibility<\/h3>\n
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Standard Equipment and Emergency Operation<\/h3>\n
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Capacity and Applications<\/h3>\n
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Planning Guidelines and Minimum Requirements<\/h3>\n
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