Payne furnace model numbers


The third and fourth numbers in the serial number on the data plate are the year of manufacture for Payne, so the one shown below is from This format has been used from the mids to the present. Some of them, like the one below, state it clearly at the bottom of the data plate. To determine the size of a Payne system in tons, see our blog post How many tons is my Payne air conditioner or heat pump.
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