Broan ZB90LC Installation Manual page 4

Page 4
New Construction Installation
3
Snap-in and
Secure Housing
4
Attach Duct Connector and Ducting
Top and bottom flanges
go outside Housing
2
Insert tab into slot
inside Housing
1
Tape
6" Ducting
1
3
Screws from Parts Bag
3
4" Ducting
6" to 4" Reducer provided in select models
ZB90LC ZB110LC Installation Guide
n
4
Position Housing
between joists and
crimp channel on both
sides of Mounting Frame
to lock Housing in place.
Do not crimp Housing.
Screw from
2
Parts Bag
Tape
Tape