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The Trane Foundation™ GDK090A3EMA is a 7.5-ton commercial gas/electric packaged rooftop unit designed to provide reliable heating and cooling for commercial buildings and light commercial applications. Combining a medium-heat gas heating system with an 86,000 BTU cooling capacity, this all-in-one rooftop system helps deliver year-round comfort while simplifying installation with a factory-assembled packaged design. The unit operates on 208-230V, three-phase, 60 Hz power and uses R-454B refrigerant.
The integrated medium-heat gas heating system provides substantial heating capacity to help maintain comfortable indoor temperatures during colder weather. The GDK090A3EMA is part of the Foundation™ packaged gas/electric rooftop unit line's three-phase medium-heat configuration.
The packaged electric cooling system provides an 86,000 BTU cooling capacity for the 7.5-ton GDK090A3EMA. The unit is rated at 14.6 IEER and uses a scroll compressor with R-454B refrigerant for commercial cooling operation.
With a 14.6 IEER performance rating and scroll compressor operation, this system is designed to provide efficient commercial cooling performance across changing operating conditions. The unit also includes a liquid-line refrigerant drier and crankcase heater as standard equipment.
The packaged rooftop configuration combines the heating and cooling equipment into a single outdoor unit, helping simplify equipment placement and preserve valuable indoor space. The GDK090A3EMA measures 48-3/4 inches high by 58-7/8 inches wide by 88-7/16 inches long. The unit ships with downflow airflow and supports convertible airflow for installation flexibility. The specified downflow roof curb is BAYCURB310.
The Foundation™ GDK090A3EMA is an electromechanically controlled packaged gas/electric rooftop unit. The design includes separated high- and low-voltage compartments and a phase monitor on all units to support proper electrical operation and equipment protection.
The Trane Foundation™ GDK090A3EMA is designed for commercial rooftop applications requiring packaged gas heating and electric cooling. Its 7.5-ton capacity, three-phase electrical configuration, convertible airflow, and packaged outdoor design make it well suited for commercial buildings where year-round heating and cooling are required.
The unit is designed with single-side service access and molded handles on service access doors to help simplify routine service. Two-inch throwaway filters are standard, while the non-corrosive, removable drain pan is designed to support maintenance. Separated high- and low-voltage compartments, a liquid-line refrigerant drier, and a phase monitor are also included as standard features.
The Trane Foundation™ GDK090A3EMA includes a 1-year limited parts warranty and a 5-year limited compressor warranty.
Experience reliable year-round commercial comfort with the Trane Foundation™ GDK090A3EMA. Combining medium-heat gas heating and 86,000 BTU electric cooling in one packaged rooftop system, this 7.5-ton unit provides commercial heating and cooling performance with 14.6 IEER efficiency, R-454B refrigerant, convertible airflow, and service-friendly single-side access.
Packaged Unit Buyers Guide
For years, Trane has been committed to delivering reliable, high-quality, and affordable heating and cooling solutions. Backed by Trane’s legacy of engineering excellence, RunTru products are designed and built to provide dependable indoor comfort for homeowners. With a focus on durability and performance, Trane has earned the trust of HVAC professionals across North America, offering practical and cost-effective solutions without compromising on quality. Shop all Trane products.
