NuTone 772RBNT Manuel d'instructions télécharger pdf (Page 2)

Page 2

MODEL 772RBNT

3. Set housing

aside and drive

nails partially

into joist at the

top of both key-

hole marks.

4. Hang housing from

nails and pound

nails tight. To en-

sure a noise-free

mount, pound an-

other nail through

the top hole of each

mounting tab.

Existing Construction

2. In attic, position mounting brackets against joist. Trace

outline of housing on ceiling material.

1. Choose the location for your fan/light in the ceiling. For best

possible performance, use the shortest possible duct run

and a minimum number of elbows.

3. Set housing aside and cut ceiling opening slightly larger

than marked.

INSTALL THE HOUSING

1. Choose the location for your fan in the ceiling. For best

possible performance, use the shortest possible duct run

and a minimum number of elbows.

2. Position mounting brackets against joist so that bottom

edge of housing will be flush with finished ceiling.

Additional positioning feature for 5/8”, 1”, &

1-1/4” thick ceiling material:

Holes in corners of housing are labeled with various

ceiling material thicknesses. Position housing so

bottom edge of joist is visible through a matched

set of holes. The housing is now in the proper

position for that ceiling material thickness.

Additional positioning feature for 1/2” thick

ceiling material:

Bend two tabs, on side of housing,

outward. Lift

housing until tabs contact underside of joist.

Mark the keyhole slot on both mounting brackets.

New Construction

5/8

1-1/4

TAB

HOLES

BOTTOM EDGE OF JOIST

- PLEASE NOTE -

THE FOLLOWING INSTALLATION ILLUSTRATIONS SHOW 2 X

6 JOISTS. IF YOU HAVE A TRUSS OR “I”-JOIST INSTALLATION,

MOUNT THE VENTILATOR TO THE ADDITIONAL FRAMING IN

THE SAME MANNER. (Additional framing must be a 2x6 (mini-

mum height), at least 9-inches long.)

4. Place housing in opening so that its bottom edge is flush

with finished ceiling. Nail to joist through keyhole on both

sides. To ensure a noise-free installation, drive another nail

through the top hole of each mounting bracket.

5. Additional mounting holes are provided for installations

where access from above is inconvenient or not possible.

Nail or screw housing directly to joists or framing.

Recommended: Seal between ceiling material & housing

on all 4 sides to prevent air leakage.

ADDITIONAL

MOUNTING

HOLES

RECOMMENDED: SEAL BETWEEN

CEILING MATERIAL & HOUSING (4 SIDES)

1 2 3 4 5 6 7 8

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NuTone 772RBNT Manuel d'instructions Page 2

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