The CM2 is a chassis-mounted, all-in-one thermal module designed to manage the complete thermal demands of electric and fuel cell applications while offering greater packaging flexibility for OEMs.

By integrating battery heating/cooling, power electronics and traction motor cooling, and cabin HVAC into one compact unit, the CM2 simplifies thermal architecture while enabling OEMs to externally package PTC heaters and water pumps to suit their platform.

With a reduced footprint (780 x 486 x 300mm) and lower weight (45kg), the CM2 is ideal for applications with tighter space constraints. Delivering 10kW cooling at 40°C ambient and 12kW heating down to -25°C, it combines a high-efficiency heat pump with advanced heat recovery for demanding duty cycles.

Equipped with Grayson’s Intelligent Thermal Controller and proprietary control logic, the CM2 provides precise, efficient thermal load management and is ready for integration into next-generation electrified platforms.

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.
• Flexible system architecture: External PTC heaters and water pumps allow OEMs to tailor system layout and integration.
• 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 Intelligent Thermal Controller & proprietary logic software: Smart load balancing for stable performance and reduced energy draw.
• CAN J1939-controlled system: Seamless integration with vehicle network for precise thermal load management.
• Supports active and passive cooling: Flexible design for efficient battery and powertrain thermal management.
• Compact, lightweight design: Reduced footprint and mass for applications with tighter packaging constraints.

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): 780 × 486 × 300 mm
• Weight: 45kg
• Communication: CAN/LIN, protocol: J1939
• Ingress protection: IP67 (controller box)