Using this method, a 3 in the model number at the correct location indicates a 3-ton fan having a standard rated airflow of 1200 cfm. Often, you can just enter the equipment model number into your favorite search engine and the specification will appear.įor example, some manufacturers use numbers to represent nominal fan cfm capacity 08 represents 800 cfm, 10 represents 1000 cfm and so on. This is where the classic numbers representing 12, 000 Btuton come into play such as 24 (representing 24,000 Btu or a nominal 2 ton cooling capacity) 30 (2.5 ton), 36 (3 ton), 42 (3.5 ton), 48 (4 ton) and 60 (5 ton). These are identified by numbers or letters depending on each manufactures nomenclature patterns. Once installed into a building, the effects of the distribution system bears on the equipment.Įquipment is made to be installed in an upflow, downflow, or horizontal position. When testing, remember this is only a laboratory rating and rarely equals actual installed equipment performance. One digit or number buried within the nomenclature can be trickier to spot than a sequence of numbers or letters. Once you master the nomenclature of your favorite manufacturer, it becomes easy to find and learn others. York Nomenclature Download At TheĮxample is available as a download at the end of this article.Ĭondensing units, heat pumps, cooling or heating coils, and package units also follow this pattern.
Ps3 serial number nomenclature how to#
Lets take a look at how to read and interpret equipment nomenclature.
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