Broan K41 Installation Instructions Manual page 5

CONNECT DUCTWORK
Ductfree Configuration
1. Use screws and wall anchors
(supplied) to secure the upper
bracket to wall and ceiling as
shown.
2. Turn upper flue section upside down
so air vents are at the top. Slide
upper flue section into lower flue
section.
3. Snap the plastic duct collar into the
hole in the bottom of the ducfree
plenum. Connect the ductfree
plenum to the upper flue section with
(4) flat-head screws (supplied).
4. Measure the distance from the top
of the discharge collar to the ceiling.
Cut a length of 6" round metal duct
(8" for K42) 6" shorter than this
dimension.
5. Fit duct section over the plastic duct
collar. For best fit, make sure duct seam is toward the front.
6. Set duct/flue assembly on hood with top tilted away from wall. Reach around flue
to engage bottom of duct with discharge collar on hood. Tilt flue up against wall.
Duct seam can be cut to length if necessary.
7. Raise upper flue section and screw it to upper bracket with (2) screws (supplied).
Screw lower flue section to hood with screws (supplied).
DUCTFREE FILTER
INSTALLATION
1. Purchase a ductfree filter kit (ROUND
FILTER) from your dealer.
2. Position the filters over the mounting
brackets on the blower inlet.
3. Rotate to lock filters in place.
BOTTOM TRIM
REPLACEMENT
1. Remove trim by pulling it frontwards.
2. Slide new trim inward onto hood.
UPPER
FLUE SECTION
(in upper flue section)
DUCTFREE
PLENUM
PLASTIC
DUCT COLLAR
DUCT
LOWER
SEAM
FLUE SECTION
6" ROUND
METAL DUCT
(8" for K42)
DISCHARGE
COLLAR
- 5 -
UPPER
AIR
BRACKET
VENTS
MEASURE
DUCTFREE
FILTERS