How To Determine Ac Tonnage From Model Number Lennox. Keeping this in view, how many tons is a lennox ac? Some manufacturer’s systems make this easier than others.
Model is identified by a ”model number“ which is stamped on the unit nameplate or rating plate. The goodman manufacturing company website provides product specifications, including model numbers, for all current air conditioning units and some older models. The sequence of letters and digits in the lennox model number
The sequence of letters and digits in the lennox model number
1914j30278 from the downloadable product brocure: Lennox package units are offered in tonnages spanning from 2 to 5 ton capacities. Up near the top of the label, you see the model number (m/n) and serial number (s/n). Next, divide that number by 12,000 to determine the tonnage capability you need in your new air conditioning unit.