Trane Announces Expansion of Outdoor Air Product Line

FOR IMMEDIATE RELEASE                                                                                                    

Trane Announces Expansion of Outdoor Air Product Line

Supply air pretreatment protects people and property

ATLANTA, Nov. 18, 2014 — Trane commercial, a leading global provider of indoor comfort solutions and services and a brand of Ingersoll Rand, has improved and expanded the Horizon™ Outdoor Air Units (OAU) product line. The Horizon OAU series is the Trane offering in the industry’s Dedicated Outdoor Air System (DOAS) product category, a technology focused on addressing the occupant health, property damage and energy efficiency problems associated with using untreated outside air to supply building ventilation needs.

“Trane has completely redesigned the 10- to 30-ton platform to deliver 100-percent outdoor air in a cost effective manner,” said Darcy Lee, portfolio leader for Trane. “Horizon empowers customers to achieve ventilation requirements, which improves indoor air quality and occupant comfort, while meeting local building codes.”

High occupancy spaces pose a particular challenge, because sensible and latent loads do not peak at the same time. In most climates, the result is elevated indoor humidity at part-load conditions, and the right combination of cooling capacity and supply airflow may not exist in “off the shelf” packaged air conditioners. These problems with constant volume, mixed air systems can be overcome by designing it as a dedicated outdoor air system, and integrating a Trane Horizon Outdoor Air Unit.

By dehumidifying outdoor supply air before it is delivered to the interior space, latent loads are greatly reduced, providing optimal comfort and promoting energy efficient operation. Case

studies have demonstrated that dehumidification has substantial preventive power. For the average high rise, a dedicated outdoor air system can potentially prevent thousands of gallons of water from entering the structure every month.

The highlight of the Horizon series expansion is the introduction of the 10- to 30-ton, 7000 CFM capacity OAG model Outdoor Air Unit. The product of a strategic redesign, it boasts a compact footprint, up to 30-percent smaller, and a sleek 61-inch cabinet profile up to 33 percent shorter, while still offering the highest heating capacity of any comparable unit on the market.

The reduction in cabinet size facilitates its use in retrofit and renovation applications, and the shorter profile makes it ideal for municipalities with code requirements regarding rooftop equipment installation aesthetics. These successful cabinet configuration upgrades are also rolling out across the entire Horizon OAU series.

The Horizon family of products also includes a complete line of Make-Up Air Units, a legacy technology that remains an essential approach to supplying fresh ventilation air to commercial and industrial facilities for which dehumidification is not a critical factor. Visit to learn more about the entire line of Trane Horizon dedicated outdoor air solutions.

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About Ingersoll Rand and Trane
Ingersoll Rand (NYSE:IR) advances the quality of life by creating comfortable, sustainable and efficient environments. Our people and our family of brands—including Club Car®, Ingersoll Rand®, Thermo King® and Trane®—work together to enhance the quality and comfort of air in homes and buildings; transport and protect food and perishables; and increase industrial productivity and efficiency. We are a $12 billion global business committed to a world of sustainable progress and enduring results. Trane solutions optimize indoor environments with a broad portfolio of energy efficient heating, ventilation and air conditioning systems, building and contracting services, parts support and advanced control. For more information, visit or