Product Roundup: HVAC systems for buses, motorcoaches

Posted on July 8, 2019 by METRO Staff

Thermo King
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.


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.


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.


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.


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.

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