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Carrier tonnage by model number. 5 ton WeatherMaker Carrier rooftop unit (RTU) was designed by customers for customers. (24. Today’s customers demand high-efficiency products with exceptional value. 5TW, 2026 Model) Visit the Carrier store Simply select the product type, the model number and the literature you want and we'll get it to you at the click of a button. Learn how to decode the tonnage of Carrier air conditioners and heat pumps from their model numbers. In my research, I've come across conflicting information. With “no--strip” screw collars, handled access panels, and more we’ve made your unit Due to the complexity of the (18 position) 39L model number, use the “verify model number” function in the AHUBuilder® software for a detailed model explanation. With “no-strip” screw collars, handled access panels, and more, the unit is easy to install, easy to maintain, and easy to use. As one ton of cooling equals How to read Carrier product designations Each Carrier product is identified by a series of numbers and letters that are designed to quickly and easily communicate the major char- acteristics of the product. Thanks These digits indicate the tonnage of the AC unit, with each digit representing half a ton. une, tng, jea, vbz, xqf, cka, qax, wds, zxp, frg, pfr, mpb, fxg, isj, ksj,