Goodman AMST30BU1400 – 2.5 Ton Multi‑Position Air Handler

The Goodman AMST30BU1400 is a high-efficiency, multi-position 2.5 Ton (36,000 BTU) air handler designed for long-lasting performance, flexible installation, and optimized indoor air comfort. Equipped with a reliable 9-speed ECM blower motor, this unit ensures energy-efficient operation with smooth airflow control and quieter performance compared to standard PSC motors. The advanced internal TXV (Thermal Expansion Valve) comes factory-installed, providing precise refrigerant flow control and better humidity regulation, particularly in variable load conditions.

This model is part of Goodman’s AMST SmartFrame™ Series, featuring a galvanized steel cabinet with a leather-grain embossed finish that resists corrosion and scratches. Inside, the unit includes an all-aluminum evaporator coil, engineered for superior heat transfer, increased durability, and resistance to formicary corrosion. The cabinet is fully insulated with foil-faced insulation to reduce air leakage and enhance thermal efficiency.

The AMST30BU1400 is built for true versatility, supporting upflow, downflow, and horizontal left/right installation configurations, making it an ideal solution for both residential and light commercial applications. The compact 21-inch depth allows for easier installation in tight spaces like attics, closets, or utility rooms. It also supports field-installable electric heat kits ranging from 3 to 25 kW, giving you options for supplemental heat without replacing the entire unit.

Technicians benefit from its tool-less filter access, screwless electrical panel, and dual drain connections (primary and secondary) for simplified service and maintenance. The built-in low-leakage design (less than 2% at 1.0" w.c.) meets or exceeds national efficiency standards and minimizes energy waste.

With AHRI certification and ETL listing, the Goodman AMST30BU1400 meets rigorous performance and safety standards. It is compatible with R-410A refrigerant systems and pairs perfectly with Goodman’s GSX and GLXS outdoor units. Whether you're retrofitting an older system or installing new, this unit delivers reliable comfort, energy savings, and installation flexibility trusted by HVAC professionals across the country.