Fedders a*pb24a1 Instruction Manual

3

Upflow Applicaton
In an upflow application normally a duct is employed as a return air means as shown in Figure 1 below
or a platform is installed as in Figure 2.

DISCHARGE DUCT  (600 FPM)

24” MINIMUM

RETURN DUCT WITH A MINIMUM OF

1/2” FIBERGLASS DUCT LINER (500 FPM).

REFER TO LOCAL CODES.

AIR

HANDLER

(MAY ALSO BE 

DOWNFLOW)

DISCHARGE DUCT  (600 FPM)

24” MINIMUM

RETURN

GRILLE

(500FPM)

RETURN PLATFORM LINED WITH 

1” FIBERGLASS INSULATION.

REFER TO LOCAL CODES.

CLOSET

AIR HANDLER

DISCHARGE DUCT  (600 FPM)

24” MINIMUM

RETURN DUCT WITH A MINIMUM OF

1/2” FIBERGLASS DUCT LINER (500 FPM).

REFER TO LOCAL CODES.

AIR

HANDLER

(MAY ALSO BE 

DOWNFLOW)

DISCHARGE DUCT  (600 FPM)

24” MINIMUM

RETURN

GRILLE

(500FPM)

RETURN PLATFORM LINED WITH 

1” FIBERGLASS INSULATION.

REFER TO LOCAL CODES.

CLOSET

AIR HANDLER