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49-5000561 Rev. 2
Installation Overview
RETURN AIR GRILLE INSTALLATION OPTIONS
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arrangements will cause performance problems.
There are three indoor return air grille installation options. Choose the option that best suits your
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installation details.
NOTE: Use only one filter in the installation.7KHILOWHUPD\EHLQVWDOOHGRQWKHXQLWRULQWKHDFFHVVSDQHO
door.
Unit-mounted filter with a field-supplied return
air grille and access door/panel
Option 3
RAVRG2B – Return air grille
Option 2
Filter
Filter
Outside wall
INSTALLATION INSTRUCTIONS
RAVRG4 – Access panel with
return air grille
Option 1
Filter
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