The CM1 is a chassis-mounted, all-in-one thermal module that manages the complete thermal demands of electric and fuel cell vehicles. By combining battery heating/cooling, power electronics and traction motor cooling, and cabin HVAC into a single compact unit, OEMs can simplify thermal architecture, reduce platform variants, and accelerate development.

Delivering 10kW cooling at 40°C ambient and 12kW heating down to -25°C, the CM1 uses a high-efficiency heat pump with advanced heat recovery for best-in-class performance.

Equipped with Grayson’s Intelligent Thermal Controller and proprietary thermal control logic software, it provides precise, efficient control of all thermal loads. Pre-charged, pre-assembled, and proven in series production, the CM1 includes full lifecycle support from integration to aftermarket service.

Our CTMS is equipped with features that integrate seamlessly into your architecture.

• Complete thermal management: Battery, power electronics, traction motor, and cabin HVAC integrated into one system.
• Cabin comfort functions: Heating, air conditioning, windscreen clearing/defrosting, and cold-start pre-conditioning included as standard.
• High efficiency heat pump with heat recovery: Maximises efficiency by recycling waste heat and optimising energy use across all climates.
• Air source heating: Provides efficient heating without over-reliance on PTC heaters, reducing energy consumption in cold conditions.
• Grayson’s Intelligent Thermal Controller + proprietary logic software – Smart load balancing for stable performance and reduced energy draw.
• Grayson Intelligent Thermal Controller: Advanced, CAN J1939-controlled module with proprietary thermal logic for precise temperature regulation.
• Plug-and-play installation: Pre-assembled, pre-charged, and pre-tested to reduce engineering hours and simplify deployment.
• Supports active and passive cooling: Flexible design for efficient battery and powertrain thermal management.
• Standardised modular packaging: One physical unit for multiple functionality combinations, reducing the need for specific platform variants.

Each technical component contributes to precise temperature regulation, ensuring consistent system performance and energy efficiency.

• Cooling capacity: 10kW @ 40°C ambient
• Heating capacity: 12kW @ -25°C ambient
• High voltage range: 450–860V DC (Nominal 800V)
• Low voltage range: 18–32V DC (Nominal 28V)
• Max HV power consumption: 16kW
• Max LV power consumption: 2kW
• Operating temperature: -20 to +45°C
• Refrigerants: R134a or R1234yf
• Dimensions (L × W × H): 856 × 600 × 300 mm
• Weight: 64kg
• Communication: CAN/LIN, protocol: J1939
• Ingress protection: IP67 (controller box)

An alternative option for your application.

• 3A-10025-0A02 - Active and Passive Cooling & Heating