4" ROUND
INSULATED
FLEXIBLE
DUCT
CEILING
JOISTS
CEILING
JOISTS
DUCT
TAPE OR CLAMP
6" ROUND
INSULATED
FLEXIBLE
DUCT
(OUTLET)
FROM
DIFFUSERS
INSTALL FRESH AIR INLETS
1. Mount all fresh air inlets in chosen locations during
rough-in construction. Follow directions packed with
inlets.
MOUNT THE VENTILATOR
1. Add framing to ceiling joists as shown.
2. Set ventilator in place and screw to framing with screws
provided. Ventilator may also be hung from joists or
rafters with hanging straps (available separately).
CONNECT DUCTWORK
Use an ON/OFF switch to control the in-line ventilator.
Accessory timers and humidity controls are also available.
1. Remove the wiring adapter plate.
2. Attach power cable to wiring adapter plate using U.L./
CSA approved connector.
3. Connect black to black, white to white, and green or bare
wire to green ground screw.
4. Replace wiring adapter plate. Make sure tab on housing
slides through slot in plate.
FROM
DIFFUSERS TO ROOF OR
WALL CAP
1. Run 4" insulated, flexible ductwork from ventilator inlet
to diffuser location(s) and 6" insulated flexible ductwork
from ventilator outlet to roof or wall cap.Outlet side is
marked with a label.
2. To minimize condensation inside of ductwork in the at-
tic, cover ductwork with additional insulation. Also, avoid
forming condensation traps in the ductwork runs.
3. Seal ductwork to ventilator and roof or wall cap with duct
tape or clamp (available separately).
4.

If some ventilator inlets will not be used:

Place the inlet
cover(s) (provided) over the unused inlet(s) and tape
them in place.
WIRE THE VENTILATOR
WARNING: DISCONNECT POWER AT SERVICE
ENTRANCE AND LOCK OUT SERVICE PANEL TO
PREVENT POWER FROM BEING SWITCHED ON
ACCIDENTALLY.

OR

ON/OFF
SWITCH
120 VAC
LINE IN
WIRING ADAPTER
PLATE
BLACK
GROUND
(Green or
Bare Wires)
GROUND
WIRE
WHITE
BLACK
BLACK
FRAMING
FRAMING