Install Instructions

ManualsBrandsAprilaire ManualsHVAC SuppliesFresh Air Ventilator w/ Backdraft Damper & Filter

MOUNTED TO THE JOIST HUNG FROM THE JOIST

AIR FLOW

MOUNTING BRACKET LOCATIONS

MOUNTED TO WALL OR FLOOR JOISTS

90-2060

FIGURE 4 – MOUNTING BRACKET POSITIONING

VENTILATOR LOCATION AND ORIENTATION

CAUTION

1. Mount the blower with the lowest, exposed moving parts at least 8 feet (2.4 m)

above ﬂoor or grade level.

2. Mount the blower at least 3.3 feet (1.0 m) from any accessible opening of the duct.

Choose a location for the ventilator that is within 6 feet of the outlet into which the

ventilator will be plugged. Allow space for filter removal and service as shown in FIGURE 2.

8140 installations: The ventilator can mounted in any orientation.

8141 installations: To ensure proper operation of the backdraft damper on the outlet collar,

mount the ventilator with the outlet collar either horizontal as shown below, or angled up.

After deciding which orientation the ventilator will be installed, make sure the pivot of the

backdraft damper is located above the centerline of the collar (see FIGURE 3) to ensure

that it closes when the ventilator is off. Remove the outlet collar and rotate it 180° if needed

to make sure the backdraft damper functions properly.

10"

FILTER

ACCESS

24"

MOTO R

ACCESS

90-2121

FIGURE 2 – CLEARANCES FOR SERVICING

CORRECT INCORRECT

DAMPER PIVOT

CENTERLINE OF COLLAR

90-2121

FIGURE 3 – OUTLET COLLAR ORIENTATION

MOUNT THE VENTILATOR

1. Install the mounting brackets, using the #8 x 1/2" screws supplied, to the side of the housing as shown in FIGURE 4. Use the holes nearest the

covers for mounting to floor joists or hanging from rafters. Use the holes near the bottom of the unit for mounting to a flat wall or ceiling surface.

2. Secure the ventilator into joists or a strong platform and screw into place using the #10 x 3/4" screws provided. The ventilator weighs

approximately 25 pounds, so do not secure it into drywall alone.

3. Make sure the backdraft damper in the oval outlet collar is positioned so that it will open when the ventilator is on and will close on its own when

the ventilator is off. If necessary, remove the collar, rotate it 180° and reinstall.