What age is this

Specific Inspection Topics Inspecting HVAC Systems
1

AC Unit
Day Night

IMG_0006.JPG

Model 36DNR105
Serial 016332020

Year 1963 ?

2

http://www.buildingcenter.org/day-night

comes up as an 01 but not sure as I read the info on page. It looks older.
Anyway, this is a good site for info

3

1963 33rd week or 8th month.

4

My book is showing 1963. Day and Night is a part of Carrier.

You should really get a technical reference guide

Mike
Heeley Home Inspections Inc