Interpretation #7617

Published September 16, 2015

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Original Request

Code Version
2014
Code
MECHANIC
Code Description
Chapter
Section
M1305.1.3
Topic
AHU in attic

Question

Can an air handler be placed in an attic with a sloped floor or bottom chord of truss?

Answer Published 09/16/2015 at 11:23 AM

Probably, if the equipment can be serviced and replaced
directly through the required opening per Exc. 1. AND
compliance with Energy Code R403.2.4 is met.

Commentary

The unit could be put into the attic without having to service it through the opening provided the unit access and service space complies with section FBC Residential-M1305.1, FBC Residential-M1305.1.3, and FBC Energy Conservation-R403.2.4. It could be a large truss space! Otherwise, the size, etc. of the servicing platform requirements must meet the provisions of FBC-EC R403.4. Must be a very large cathedral space for someone to get to the unit to work on it.