Streamline Vehicle Architecture
- Combine multiple thermal functions into a single unit
- Free up valuable installation space
- Optimize overall vehicle architecture
- Reduction of required components
HMU - Heat Management Unit
One compact thermal system using R290 as natural refrigerant.
Electrified commercial and special vehicles require thermal systems that deliver maximum performance while minimizing package space. Magna's Heat Management Unit consolidates multiple heating and cooling functions into one compact unit, enabling efficient vehicle integration and optimized packaging.
"The HMU was developed to provide a compact, future-ready refrigerant system while delivering the durability and performance required for demanding applications."
Alexander Luger
Sales Manager, Engineering Services
How can OEMs reduce Thermal System Complexity in Commercial Vehicles?
Accelerate System Integration
- Reduce development complexity
- Minimize integration effort
- White box controls available
- Reduction of testing effort
Enhance Efficiency & Reliability
- Lower system weight and components
- Increase system robustness through fewer interfaces
- Support long-term vehicle uptime
Technical Specifications | |
|---|---|
| Specification | Value |
| HV Supply | 400 V / 800 V |
| LV Supply | 12 V / 24 V |
| Compressor | 30 or 50 ccm Scroll Compressor |
| Refrigerant | R290 |
| Cooling Capacity | Up to 15.6 kW |
| Ambient Temperature | -30°C to +50°C |
| Package Size (L/W/H) | 375 / 275 / 245 mm |
| Weight | Less than 18 kg |
HMU information, contact & technical support
Find technical details about Magna‘s Heat Management Unit in the product brochure or contact our experts directly.
Why choose Magna´s HMU?
Compact Packaging
- Highly integrated all-in-one thermal management solution
- Reduced installation space and lower system weight
- Optimized packaging flexibility for vehicle integration
High Performance
- Efficient thermal management for battery, cabin and powertrain
- Supports diverse customer applications and vehicle concepts
- Consistent performance under demanding operating conditions
- Optimized NVH performance
Simplified Integration
- Multiple thermal functions consolidated in one unit
- Reduced component count and fewer interfaces
- Lower engineering, installation and validation effort
Future-Ready Technology
- Based on natural refrigerant R290
- Designed to meet evolving environmental regulations
- Supports long-term electrification strategies
FAQs - About Heat Management Unit (HMU)
What vehicle systems can be managed by the HMU?
The system provides heating and cooling for the cabin, battery and powertrain from a centralized thermal hub.
How Does the HMU Support Vehicle Durability and Uptime?
The system is engineered for demanding commercial and special vehicle applications and delivers reliable performance across a wide range of operating conditions.
Which refrigerant is used?
The HMU uses R290 (propane), a natural refrigerant with low GWP.
Can the HMU replace PTC heaters?
Yes, the concept enables the elimination of conventional PTC heaters.
Which voltage architectures are supported?
The system is available for both 400V and 800V vehicle platforms and supports 12V or 24V low-voltage supply.
When will prototypes be available?
Prototype units for customer verification are planned for Q4 2026, followed by vehicle integration, testing and series development.
