Remove the existing fan and use housing
masking template to mark the ceiling
opening and cut the ceiling along the
marked line.
2
1
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)
Flex-Z Fast™ bracket
2
Joist
Drywall
Joist
Insert Flex-Z Fast™ bracket into the
opening and extend.
IMPORTANT:
Remove the tape placed on the damper and
adaptor before installation. Failure to do so
will cause the product to work inefficiently and
create a loud noise.
If you require use of the 3 inch duct
reducer (optional accessory), use the
following method:
Insert
Duct tape
Adaptor
Damper
Tape
Disconnect power supply before
installing the unit.
Please wear gloves to protect hands
during the installation.
WARNING
Joist
2 Tapping screws
(ST4.2X20)
Flex-Z Fast™ bracket
Align
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
Align and install bracket to joist by using
2-preinstalled tapping screws.
Joist
5
2 Tapping
screws
(ST4.2X20)
Extend
4
4
5
Extend bracket to the other joist.
Install bracket to joist by using 2-preinstalled tapping screws.
6
INSTALLATION (RETROFIT)
