MLT-VAC-40Se

Hybrid A/C System for the BMP-3


The MLT-VAC-40Se is a hybrid air-conditioning system developed specifically for the BMP-3 armoured vehicle. Engineered to maintain cabin temperatures between 22°C and 25°C even when external conditions reach 58°C, the system ensures optimal comfort and operational readiness for the crew. Its compact, rooftop-mounted design integrates seamlessly with the vehicle structure without interfering with core functions or internal space. Designed and tested in accordance with MIL-STD-1472F, MIL-STD-810G, and ASHRAE guidelines, the MLT-VAC-40Se combines military-grade durability with advanced climate control capabilities. It operates autonomously via a low-voltage Auxiliary Power Unit (APU), offering safe and energy-efficient performance in both land and amphibious missions.

AIR CONDITIONING UNIT (ACU) DESIGN AND PERFORMANCE

The Air Conditioning Unit (ACU) is purpose-built for the interior layout of the BMP-3, delivering powerful airflow and consistent cooling across all cabin zones. Its advanced air distribution system incorporates 13 adjustable vents for uniform air circulation, while a three-stage filtration cassette ensures the removal of dust, particulates, and contaminants, supporting a clean and healthy interior environment. Special insulation stabilizes temperatures and reduces thermal gain, even in extreme heat. User-friendly control panels allow easy management of fan speeds and temperature settings, while safety mechanisms such as automatic shutdown features ensure uninterrupted and secure operation. Designed for fast installation and minimal maintenance, the ACU supports quick access and servicing by just two personnel.

INDEPENDENT AUXILIARY POWER UNIT (APU)

The Auxiliary Power Unit (APU) is engineered to operate independently from the vehicle’s main systems, ensuring that cooling performance is maintained without affecting mission-critical functionality. Powered by a customized 4-cycle diesel engine, the APU delivers a maximum cooling capacity of 40,945 BTU/h (12 kW) with a motor airflow of 1,200 m³/h. It utilizes R-134a refrigerant and operates reliably across a wide temperature range from -10°C to 58°C. All core elements—including compressors, alternators, condensers, fans, and coolant filters—have been optimized to work within tight spatial constraints while ensuring maximum thermal efficiency and safety.

RELIABILITY, MAINTENANCE, AND VEHICLE INTEGRATION

Every aspect of the MLT-VAC-40Se has been developed with operational effectiveness and long-term reliability in mind. The system’s modular design simplifies integration and supports a streamlined maintenance process. Its rugged construction using military-grade hoses, cables, and components ensures long-lasting performance under harsh battlefield conditions. Designed exclusively for the BMP-3 yet adaptable to similar armoured platforms, the MLT-VAC-40Se offers a robust, field-tested climate control solution that enhances crew survivability and equipment protection in the most demanding environments.

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