Product Roundup: HVAC systems for buses, motorcoaches
Some of the latest offerings from Thermo King, Trans/Air Manufacturing, Bergstrom, Proair LLC, and Valeo.

Thermo King

Thermo King
The Athenia AMII E-800 is an all-electric, hermetically sealed rooftop unit for battery-bus, hybrid-bus, trolley-bus, and engine-driven alternator-powered applications. The E-800 delivers clean, efficient heating, ventilation, and air conditioning comfort for passengers using hermetically sealed electric scroll compressors, two stages of electric heat, and variable frequency control of the compressor and air movers. The E-800 all-electric HVAC system can deliver the same capacity at all vehicle speeds and optimizes energy efficiency through the intelligent control system. The E-800 features a rugged, transit duty, one-piece design for exceptional durability and ease of installation. www.thermoking.com

Trans/Air Manufacturing
This year, Trans/Air is celebrating its 40th year in the bus air-conditioning industry. The company’s latest offering, the RT170, is a heavy-duty rooftop climate control system designed for commercial buses or coaches up to 45 feet in length. The system can offer up to 170,000 Btu/hr cooling and is also available with heating. The RT170 includes a fully integrated control panel and provisions for added dash air capacity, if that option is selected by the user. The RT170, and a full line of other Trans/Air systems, are also available in electric models for hybrid or all-electric buses. www.transairmfg.com

ProAir LLC
The new EV-1 and EV-96 In-Wall Evaporator Modules are designed to neatly fit into both the front and rear wall of the bus and are available with 12-volt or 24-volt motors. IMACA EV-1 and EV-96 evaporators are available in a capacity range from 35,000 Btu/hr. up to 96,000 Btu/hr.
The EV’s drop-in one-piece construction simplifies installation time and provides maximum head clearance and a clean OEM appearance. Easy access filters reduce the maintenance time when clearing or replacing the AC system air filters. In addition, Proair has recently expanded its rooftop product line to include the CR-9 rooftop condenser and RTS-290 complete rooftop system. Proair has also worked to develop and offer electric AC system options for hybrid and electric-drive buses. www.proairllc.comwww.actusa.us.com

Valeo
The REVO®-E and REVO®-E Global are both all-electric rooftop air conditioning specifically oriented for the electric bus market. A special emphasis was placed on lightweight construction, performance, and simple installation. Added comfort is provided by a heat pump version or optional battery cooling. www.valeo.com

Bergstrom Inc.
Bergstrom, maker of climate systems for commercial, bus, and specialty vehicles, has revolutionized the way motorcoaches are cooled during engine-off periods with eClimaCoach. The system, located in luggage compartment, was developed in conjunction with the Idaho National Laboratory. It is a battery-electric no-idle HVAC system specifically tailored to the unique needs of motorcoaches. eClimaCoach, and the accompanying 1-kW solar panel, was the recipient of the METRO Magazine’s 2018 Innovative Solutions award. The system’s primary benefits are reduced wear, increased comfort, and decreased idle time, resulting in significant fuel savings. www.bergstrominc.com
More Technology

Turn Transit Data Into Action
Discover how leading agencies are using connected technology to gain real-time visibility across operations, improve service reliability, and reduce disruptions.
Read More →
Biz Briefs: OCTA Taps Clean Energy for Hydrogen Station, Stadler to Supply Via Rail Vehicles, and More
From manufacturers and suppliers to transit agencies and motorcoach operators, these updates offer a snapshot of the projects, partnerships and business moves driving the industry forward.
Read More →
CharterUP Expands Into New Mobility and Autonomous Transportation
Vice President of New Mobility Stephen Joos discusses how CharterUP is leveraging its nationwide transportation network, technology platform, and autonomous vehicle partnerships to expand into workforce mobility, campus shuttles, and transit solutions.
Read More →
METRO Magazine Announces 2026 Innovative Solutions Awards Winners
Projects Recognized for Advancing Mobility Through Technology, Accessibility, Workforce Innovation, and Operational Excellence
Read More →
Cummins Introduces Phased Model Year 2027 Launch Strategy
According to officials, the approach is designed to maintain regulatory compliance, support customer production schedules, and provide additional time to ramp production in a disciplined manner that helps ensure a successful transition for the industry.
Read More →
Biz Briefs: STV teams with Amtrak, Motorcoach Operators Boost Fleet and Land Contracts, and More
From manufacturers and suppliers to transit agencies and motorcoach operators, these updates offer a snapshot of the projects, partnerships and business moves driving the industry forward.
Read More →
DART Taps Nathaniel P. Ford Sr. as Next President/CEO
Since 2012, Ford has served as the CEO of the Jacksonville Transportation Authority
Read More →
AC Transit’s Cecil Blandon on Building the Next Generation of Transit Maintenance Leaders
The agency’s maintenance chief discusses leadership, workforce development, zero-emission technology, and preparing technicians for the future of public transportation.
Read More →
California High-Speed Rail Authority Signs MOU to Advance High Desert Corridor
The agreement deepens collaboration between the California High-Speed Rail Authority and the High Desert Corridor Joint Powers Agency, supporting design integration, cost savings, and faster delivery of a key Southern California rail link.
Read More →
Building the Next Generation of Transit Technology
In this edition of METROspectives, Luminator CEO Magnus Friberg discusses the company's transformation, the growing role of AI and software, and what's next for transit technology.
Read More →