Joist
2 Tapping screws
(ST4.2X20)
Flex-Z Fast™ bracket
Align
Remove the existing fan and use housing
masking template to mark the ceiling
opening and cut the ceiling along the
marked line.
2
1
3
3
Joist
Flex-Z Fast bracket
™
Joist
Align the edge of Flex-Z Fast™ with
the edge of the ceiling opening on the
side where the adapter will be installed.
Drywall
Flex-Z Fast™ bracket position can be adjusted from 16" to 24" (406mm to 610mm) between joists.
Install Flex-Z Fast™ bracket
10 7/8
(275)
1
Draw the contour with a marker through marked line
Template
PAD
Template
Drywall
Marker
10 7/8
(275)
Unit: inches (mm)
Insert Flex-Z Fast™ bracket into the
opening and extend.
Align and install bracket to joist by using
2-preinstalled tapping screws.
Joist
5
2 Tapping
screws
(ST4.2X20)
Extend
4
Install circular exhaust duct
2
1
Remove screw from junction box
cover to remove the knock-out
hole and secure conduit or stress
relief to junction box knock-out hole.
Install the circular exhaust duct and
secure it with clamps or ties and seal it
with mastic or approved foil tape. A
3 or 4 inch circular duct is needed to
connect to the relevant part of the adaptor.
4
5
Extend bracket to the other joist.
Install bracket to joist by using
2-preinstalled tapping screws.
6
Flex-Z Fast™ bracket
2
Joist
Drywall
Joist
INSTALLATION (RETROFIT) (CONTINUED)
Flex-Z Fast™ bracket
Circular exhaust duct
Conduit
Junction box cover
1
2
Joist
Adaptor
Knock-out hole
Joist
Mastic or
approved
foil tape
