Interpretation #8499
Published September 22, 2026
Original Request
- Code Version
- 2021
- Code
- RESIDENT
- Code Description
- Chapter
- 16
- Section
- M1602.2 (4)
- Topic
- Return air taken from AHU closet
Question
Is it required to duct the return of an AHU out of a closet where an air handling unit is located in a 1 or 2 family dwelling to comply with M1602.2 (4)?