Figure 9 Common Wall Mounting Installations - Bard CH4S1 Installation Instructions Manual

Free Air Flow - No Duct
Unit (outside)
False Wall Installation
Unit (outside)
Manual 2100-455M
Page 14 of 28
cOmmOn Wall mOuntInG InstallatIOns
Rafters
Grille Finished Ceiling
Supply Air
Return Air
Grille
Note: duct maybe in attic or
below rafters as shown.
Rafters
Supply Air
Duct
Finished Ceiling
Wall Sleeve
Return Air
Grille
FIGure 9
Free Air Flow - No Duct
Low Sound With Acoustical Plenums
And Isolation Curbs
Isolation Curb
WM1CF5-X
Ducted Supply - Return At Unit
Unit (outside)
Free Blow
Supply Plenum
WAFB51-X
Return Air
Silencer
WAPR11-X
RETURN AIR
Note: duct maybe in attic or
below rafters as shown.
Rafters
Duct
Supply Air
Finished Ceiling
Return Air
Note: direction of return
grille louvers is pointed down
for lowest sound level as shown.
MIS-2027