Thermal Zone®
How to determine the date of production/manufacture or age of Thermal Zone® HVAC Systems.
The date of production/manufacture or age of Thermal Zone® HVAC equipment can be determined from the serial number located on the data plate.
Parent Company: Paloma
Example serial number styles/formats found:
The Serial Numbers shown are utilized with all Paloma Brand systems.
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Style 1: 1204D01234
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Style 2: OR177 M2807 00097
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Style 3: W291013412
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Style 4: CB5D302F099903346
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Style 5: 123451872
Style 1: 1204D01234
Month of manufacture can be determined by using the 1st & 2nd numerical digits.
Year of manufacture can be determined by using the 3rd & 4th numerical digits.
Style 2: OR177 M2807 00097
The Date of Manufacture is coded in the middle group of digits following a letter designation of either “F” or “M” and represent the week and year of production.
Style 3: W291013412
Week of manufacture can be determined by using the 2nd & 3rd numerical digits.
Year of manufacture can be determined by using the 4th & 5th numerical digits.
Style 4: CB5D302F099903346
The Date of Manufacture is coded in the middle group of digits following a letter designation of either “F” or “M” and represent the week and year of production.
Style 5: 123451872
The Date of Manufacture is coded in the last four digits of the 9 digit serial number and represent the week and year of production.
Page last updated: 7/30/2017
