Day & Night HVAC age | Building Intelligence Center

Day & Night®

How to determine the date of production/manufacture or age of Day & Night® HVAC Systems.

The date of production/manufacture or age of Day & Night® HVAC equipment can be determined from the serial number located on the data plate.

Parent Company: International Combort Products (ICP). part of UTC Building & Industrial Systems, a subsidiary company of United Technologies Corp.

Sister or similar Brands Include: Airquest® | Arcoaire® | Day & Night® | Dettson® | Heil® | ICP Commercial® | Keeprite® | Lincoln® | Tempstar®

Example serial number styles/formats found:

Style 1: 4006A17330
Style 2: 50304091

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Style 1: 4006A17330

Description: Nine (9) character Serial number begins with four (4) numerical digits follow by a single letter and ends with five (5) numerical digits.

Week of manufacture is 1st-2nd characters.

Year of manufacture is 3rd-4th characters.

Style 2: 850304091

Description: Nine (9) digit all numerical Serial number.

Year of manufacture is 1st – 2nd characters.

Month of manufacture is 3rd – 4th characters.

Page last updated: 29 March 2016

Inspection Notes

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