Bard CH3S1 Free Air Flow - No Duct, False Wall Installation, Ducted Supply - Return At Unit

FIGURE 8

COMMON WALL MOUNTING INSTALLATIONS

Free Air Flow - No Duct

Free Air Flow - No DuctLow Sound With Acoustical Plenums And Isolation Curbs

		Isolation Curb
Unit (outside)	Rafters	WM1CF5-X
	Finished Ceiling
Grille
Supply Air
		Free Blow
		Supply Plenum
Return Air		WAFB51-X
Grille
		Return Air
		Silencer
Outside Wall		WAPR11-X

RETURN AIR

False Wall Installation

Ducted Supply - Return At Unit

Note: duct maybe in attic or below rafters as shown.

Unit (outside)	Rafters
	Supply Air	Duct

Finished Ceiling

Wall Sleeve

Outside Wall Return Air False Wall

Return Air

Grille

Unit (outside)

Outside Wall

Note: duct maybe in attic or below rafters as shown.

Rafters

Supply Air Duct

Finished Ceiling

Return Air

Note: direction of return grille louvers is pointed down

for lowest sound level as shown.

MIS-2027

Manual	2100-455A
Page	14 of 25