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:Â Paloma
Example serial number styles/formats found:
The Serial Numbers shown are utilized with all Paloma Brand systems.
Style 1:Â Â Â Â 1204D01234
Style 2:Â Â Â Â OR177 M2807 00097
Style 3:Â Â Â Â W291013412
Style 4:Â Â Â Â CB5D302F099903346
Style 5:Â Â Â Â Â 123451872
Style 1:Â Â 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:Â Â 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:Â Â 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:Â Â 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:Â Â 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
