9
Model: VFB25ADBT
ASSEMBLY INSTRUCTIONS
c
b
a
4
a
5
1. For joist spacing 16 in. - 24in., insert suspension
bracket I
❸
into the bracket cover on the duct
connector side. Then, attach suspension bracket II
❹
and bracket III
❺
to the back of the fan body
❶
.
2. Secure the fan body
❶
to the joist with suspension
brackets
❸
,
❹
,
❺
using long wood screws.
Hardware
A
Long wood screw
3. Secure the suspension brackets
❹
,
❸
,
❺
to the fan
body
❶
using a short machine screw.
Hardware
B
Short machine screw
Install from above with suspension brackets
(attic access)
*ONLY IF UNABLE TO ATTACH DIRECTLY TO JOIST(S)
5
3
4
1
1
1
1
4
4
5
A
2
Short
machine screw
1
1
3
4
4
5
A
5
3
4. Remove the fan junction box cover
a
. Using wire
nuts (not supplied), connect house wires to fan
wires
b
as shown in the wiring diagram on page 5.
Reattach fan junction box cover
c
.
5. Connect a 4 in. circular duct
a
(not supplied)
and vent to the outside. Secure it with duct tape
(not supplied) or clamp (not supplied) to make the
connection secure and air tight.
6. Turn on power source. Check fan for any abnormal
sound or vibration.
