8
Model: VFB25ADBT
ASSEMBLY INSTRUCTIONS
5. Place the duct connector
❻
through the ceiling cut
out. Connect a 4 in. circular duct (not supplied)
a
and vent to the outside. Secure it with duct tape
(not supplied) or clamp (not supplied) to make
connection secure and air tight. Attach the duct
connector to the ceiling with one long wood screw.
Hardware
A
Long wood screw
8. Insert fan body
❶
into the ceiling cut out making
sure to align the duct connector with the fan body
❶
.
7. Secure the fan body
❶
from below using long wood
screws (provided). Insert at least 4 screws through
Hardware
A
Long wood screw
6 Remove fan junction box cover. Using wire nuts
(not supplied), connect house wires to fan wires
a
as shown in the wiring diagram on page 5.
9. Turn on the power source. Check fan for any
abnormal sound or vibration.
Install from below, no need for suspension
brackets (no attic access)
a
1
A
A
6
3 1/2 in.
5
7
7
a
6
4. A piece of wood (not supplied) is screwed in from
below through the ceiling board. Suggested size is
1 in. x 3 in. x 14 in. Position the screws far enough
away from the edge of the ceiling board that it does
not crumble and give way. Put screws in both ends
of wood beyond the 10 1/4 in. hole. Keep screws in
range of grille.
Wood support screwed in from
underneath. Screw is far enough away
from the edge of sheetrock to prevent
crumblimg.
Wood support
4
1
8
