Installation Instructions
17
RETURN AIR GRILLE INSTALLATION OPTIONS
The room return air grille may be installed toward the front or either side of the unit. Improper return air arrangements
will cause performance problems.
There are three indoor return air grille installation options.
Choose the option that best suits your installation
requirements. Follow the Installation Instructions provided with the return air grille accessory for installation details.
NOTE: Use only one filter in the installation.
The filter may be installed on the unit or in the access panel/door.
Unit-mounted filter with a field-supplied return
air grille and access door/panel
RAVRG2 – Return air grille
RAVRG1 – Access panel with
return air grille
Filter
Filter
Filter
Outside wall
Option 1
Option 2
Option 3
