IM 986-2 / Page 15 of 48
Critical Dimensions
Return Air Grille/Panel Dimensions
Location of studs in relation to the unit and the return
air grille panel are critical for proper installation and
t up. When installed, the return air grille gasket must
compress and seal completely against the outer edge of
the cabinet and around the inner front panel and lter
bracket. See page 24, “Installing The Return Air/Grill
Panel” and page 14, gure 19 “Framing Locations to
Unit Openings”.
Figure 21: Unit Sizes 009 - 018 (18" x 18" Cabinet)
Figure 22: Unit Sizes 021 - 036 (24" x 24" Cabinet)
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