The RunTru A5AC4 is Trane's value-line air conditioner, delivering dependable cooling at the most accessible price point in the Trane family. With a 14.3 SEER2 rating and single-stage operation, the A5AC4 uses R-454B refrigerant (the next-generation, lower-GWP replacement for R-410A) and is compatible with standard 24-volt thermostats for straightforward installation. Engineered for reliability and thoroughly tested before leaving the factory, the A5AC4 is ideal for homeowners replacing an aging system who want Trane quality without the top-tier price.

Thoroughly Tested Reliability: Every A5AC4 unit is 100% run-tested at the factory before shipping, ensuring dependable operation from day one.

R-454B Refrigerant: Uses the next-generation, lower global warming potential refrigerant, future-proofing your investment against upcoming refrigerant phase-outs.

10-Year Registered Warranty: Compressor and internal functional parts are covered for 10 years when registered within 60 days of installation, matching Trane's own warranty terms.