10
FIG. 18
2 Sheet
Metal Screws
8 Wood Screws
4. Install front and rear doors.
5.
Place filter in return air vent grille. It may already
be installed on some units. See (FIG. 19).
FIG. 19
Filter
Return Air
Vent Grille
6. Install return air vent grille into the ADB. Slide re-
turn air vent grille tab into slot in ADB and rotate
up and snap in place. See (FIG. 20).
INSTALLATION INSTRUCTIONS
FIG. 17
Hole In Ceiling
Template
ADB Hole
Alignment
Hole In
ADB Cover
2. Install two (2) (supplied) sheet metal screws in-
side return air opening to secure ADB to ceiling
template. See (FIG. 18).
3. Install eight (8) (supplied) wood screws inside
the front, rear and side doors to secure ADB to
ceiling. See (FIG. 18).
