Bus Air Conditioning
Athenia AM II Series
NewRooftop HVAC system for coach and transit
A complete range of low-weight, high-performance roofmount HVAC systems for coach and transit applications, featuring an updated design for improved quality and reliability.

Delivers quality & reliability
The Athenia AM II Series features an updated design that delivers improved quality and reliability while offering new features and significant enhancements. It includes a 10% weight reduction, a welded frame, and a reduced number of potential leak points, with no sealants used in the design. The stiffer construction ensures improved unit/bus sealing, and it offers 10% more condenser airflow and 5% more evaporator airflow. All serviceable items are accessible from inside the bus, and it boasts an easy-to-install one-piece design. The system is controlled by the IntelligAIRE III® microprocessor controller with CANBUS communications and is designed to fit CNG, hybrid, and diesel buses. Transducers, a motorized water valve, and electronic capacity control are standard.
Benefits
10% Weight Reduction
The updated design achieves a significant 10% reduction in overall unit weight, contributing to improved vehicle efficiency.
Welded Frame & Reduced Leak Points
A robust welded frame design eliminates rivets and sealants, drastically reducing the number of potential leak points and enhancing structural integrity.
Improved Airflow
The system delivers 10% more condenser airflow and 5% more evaporator airflow, ensuring optimal cooling and heating performance.
Internal Service Access
All serviceable items are conveniently accessible from inside the bus, simplifying maintenance and reducing service time.
IntelligAIRE III® Microprocessor Controller
Equipped with an advanced IntelligAIRE III® microprocessor controller featuring CANBUS communications, providing precise control and diagnostic capabilities.
Versatile Application
Designed to seamlessly fit CNG, hybrid, and diesel buses, offering broad compatibility across various fleet types.
Standardized Components
Transducers, a motorized water valve, and electronic capacity control are all included as standard features, enhancing functionality and value.
Unit Specs
General
| Weight Reduction | 10% |
| Condenser Airflow Increase | 10% |
| Evaporator Airflow Increase | 5% |
| Frame Construction | Welded (no rivets or sealant) |
| Service Access | From inside bus |
| Design | One-piece |
Control System
| Controller | IntelligAIRE III® microprocessor |
| Communication | CANBUS (J1939 network compatible) |
| Capacity Control | Electronic (standard) |
Compatibility
| Bus Types | CNG, hybrid, and diesel buses |
Refrigerant
| Options | R-407C or R-134A |
| ODP | Zero |
Compressor
| Model | Thermo King X430 |
| Application | Exclusively for transport |
| Serviceability | Field repairable |
Related Products
NewBus Air Conditioning
IntelligAIRE III
The Thermo King IntelligAIRE III is a 3rd generation advanced microprocessor-based controller for bus climate control systems, offering complete communication capabilities and multi-zone temperature control.
NewBus Air Conditioning
T-Series
The Thermo King T-Series offers high performance and reliability for bus HVAC systems, designed for low life cycle costs and easy serviceability.
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