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  1. #1
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    TRANE Chiller Serial Number interpretation

    Please advice how to interpret month of manufacturing date from Trane chiller serial number.

  2. #2
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    Aug 2009
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    Prattville, Alabama
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    The 4th alphanumeric will be a letter. It's order in the alphabet is the month of manufacture. The letter "I" is skipped, not used, due to the possibility of it being mistaken for the numeral "1". For example, in the made up serial number "L09H1234", the 4th character is "H", which is the 8th letter, that means the 8th month - August. This style of serial number has been used since, I think, the late 1970's.

  3. #3
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    Thank you for explaining the first 4 characters in the Trane Serial Number Nomenclature for Chillers. Can you tell me if the last 5 characters give any indication of the size of the unit and/or the efficiency of the unit?

  4. #4
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    Quote Originally Posted by GreenQueen View Post
    Thank you for explaining the first 4 characters in the Trane Serial Number Nomenclature for Chillers. Can you tell me if the last 5 characters give any indication of the size of the unit and/or the efficiency of the unit?
    The rest of the serial number simply is to identify that particular chiller. I've started multiple chillers at one site, that were all part of one sales order, and saw that the last 5 characters were in sequential order. For example, 2 chillers, with one having the serial number "L09H1234" and the other "L09H1235".

    A lot of information is contained in the Model Number. The nominal size is given in the 5th, 6th, and 7th characters. Those are then multiplied by 10 to get the nominal size, in tons. For example, CVHE095, would be a 950 Nominal Ton chiller. "Nominal" means... well, the "base" size of the chiller. The chiller would have been designed for that particular customer, for his particular application and target efficiency, so its actual rated tonnage will most likely vary from that.

    For example, let's use car engines. If Chevy designed and built cars the same way as large chillers are built, then if you and your neighbor each bought new cars with the same size engine, that looked identical, they may in fact be different. Imagine you have a larger family, like to drive faster, cruise in the mountains. You may both have a 5.3 liter engine, yet yours may have been "bored out", or "stroked" to make it slightly larger to perform better for your particular application.
    With a chiller, those "modifications" would be in the form of impeller cutback, using a different size evaporator and/or condenser, and at least a couple of other things.

    Using the serial number, a call to your local office will help to identify the exact design tonnage. Or, if you're willing, posting it here would probably get you the same results. There are current Trane employees who visit this site. But be forewarned, the serial number will reveal ALL INFORMATION about the design AND SALE of the chiller. Including the name and address of the owner. Some people are uncomfortable with that. Personally, I would not, and will not post somebody's info without their permission. Including a customer's serial number.
    Last edited by Nuclrchiller; 03-10-2016 at 05:49 PM. Reason: clarity

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