Broan ULTRA Pro RB80L Installation Manual page 4

Page 4
New Construction Installation
3
Snap-in and
Secure Housing
4
Attach Flange, Transition and Ducting
Top and bottom flanges
go outside Housing
2
3
Insert tab into slot
inside Housing
1
Tape
4" Ducting
3
1
Screws from Parts Bag
Align Tape
Transition
Flange
RB80L RB110L 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