Trane 12.5 Ton 140,000 BTU Commercial Gas/Electric Packaged Unit | 14.0 IEER | R-454B | 208/230V 3-Phase | Foundation Series | Single Stage

Trane Foundation Series 12.5 Ton Commercial Gas/Electric Packaged Unit — Heavy-Load Climate Control for Large Commercial Buildings The Trane Foundation Series 12.5-ton unit is the heavy hitter of the lineup. At 150,000 BTU, this commercial gas/electric packaged unit is engineered for large-format retail, distribution centers, manufacturing facilities, large houses of worship, multi-tenant commercial buildings, and any application where a single high-capacity rooftop unit needs to carry a serious load. When the square footage is substantial and downtime is unacceptable, this is the unit on the specification sheet. 14.0 IEER — Efficiency Engineered for Heavy Commercial Loads At 12.5-ton capacity, the Foundation Series delivers a 14.0 IEER — meeting commercial energy code requirements while managing the thermal demands of large-footprint buildings. For facility managers running equipment at high utilization hours, that efficiency rating translates to meaningful annual savings on utility costs at scale. Note that at this capacity tier, IEER steps to 14.0 versus the 14.6 rating of smaller Foundation Series units — consistent with commercial efficiency standards for this tonnage range. R-454B Refrigerant — Ready for the Regulatory Future Like all current Foundation Series units, this 12.5-ton package runs on R-454B — the low-GWP refrigerant replacing R-410A across the commercial HVAC industry. Specifying R-454B at this capacity level is especially important: a mid-lifecycle refrigerant retrofit on a 12.5-ton commercial unit is a significant cost and disruption. Getting it right at installation protects the building owner's investment for the life of the equipment. Integrated Gas/Electric in a Single Rooftop Package At 12.5 tons, the all-in-one gas/electric design is a major practical advantage. Combining gas heat and electric cooling in one rooftop unit eliminates the need for a separate heating plant, dedicated mechanical room space, or complex dual-system controls. Single-stage operation keeps the system straightforward to commission, maintain, and service — critical when equipment is this size and replacement costs are high. 208/230V 3-Phase Power — Built for Commercial Electrical Infrastructure Rated for 208/230V 3-phase power, this unit is designed for the electrical systems found in genuine commercial and light industrial buildings. At 12.5-ton capacity, 3-phase power delivery is essential for efficient motor operation and stable performance under peak load conditions. Why This Unit Gets Specified at 12.5 Ton 150,000 BTU output handles large commercial floor plates with a single rooftop unit 14.0 IEER meets commercial energy code at this capacity tier R-454B refrigerant eliminates retrofit risk across the full equipment lifecycle Gas/electric all-in-one design eliminates separate heating plant requirements Single-stage controls reduce commissioning time and long-term service complexity 3-phase power ensures stable, efficient operation at maximum load Trane Foundation Series reliability and warranty at the highest capacity in the lineup Specifications at a Glance Spec Detail Capacity 12.5 Ton / 140,000 BTU IEER 14.0 Refrigerant R-454B Voltage 208/230V Phase 3-Phase Heating Gas Cooling Electric Stages Single Stage Series Foundation Series