I have not seen this brand. I would like to say this is a 2004 which matches the exterior condensing unit.
2004 seems reasonable.
I know it doesn’t say Carrier, but it certainly looks like a Carrier style serial #.
1 Like
Armstrong Air January 2004.
7 Likes
Junior the serial/model number magician. Thank you.
8 Likes
You’re welcome.
6 Likes
Junior beat me to it! Armstrong Air has been closed at least 15 years.
2 Likes