Architectural Abbreviations and Acronyms

1. NAT
   Natural
2. PAX
   Passenger
3. PAX
   Private Automatic Exchange
4. CHR
   Chilled Water Return
5. CIR
   Circuit
6. CIR
   Circle
7. CON
   Construction
8. CON
   Concrete
9. CRT
   Circuit
10. H
    Header
11. H
    Height
12. H
    Hour
13. H
    High
14. H
    Hospital
15. H
    Heavy
16. H
    High Frequency
17. INT
    Interlock
18. INT
    Internal
19. INT
    Interior
20. l
    Angle

Last updated: May 23, 2020 — Total entries: 4,265