Interpretation #9550

Published July 13, 2026

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Original Request

Code Version
2010
Code
MECHANIC
Code Description
Chapter
6
Section
602.1
Topic
Mechanical Equipment room as a plenum

Question

Is the intent of 602.1 to allow a mechanical equipment room to act as a plenum as long as there are no fuel-burning appliances within the same space?

Answer Published 07/07/2026 at 8:30 AM

As this occupiable room does not meet the definition of a plenum in Chapter 2, the stated section does not apply.

Commentary

None.