Connect Wiring; Retrofit Installation - NuTone Roomside / Flex AR70LC Instructions Manual

Connect 4-in.
1 7
round duct.
Remove old
1 5
fan and prepare
ceiling.
Enlarge ceiling opening
(if necessary) to 9¾"
parallel to joist) by 10½"
(perpendicular to joist).
(Some models have a
cut-out template on side of carton or on
grille packaging materials.)
Existing fan housings are typically attached to the structure:
• with screws, nails, or staples, which must be removed.
• with hangers or rails which are fastened to joists and must be removed along with housing.
A pry bar may be needed to remove the old housing.
Leave ductwork and wiring in place.

Connect wiring.

1 7
Connect power cable to wiring plate
(from parts bag) using UL approved
connector. Connect house wiring to
fan wiring. Refer to wiring diagram for
connection details. Use screw (from
parts bag) to secure wiring plate to fan
housing. Re-install wiring panel and
secure with screw from parts bag.
Mount fan to ceiling
1 8
structure.
Mount housing to ceiling
structure with appropriate
fasteners in locations shown.
Connect wiring.
8
1
Connect power cable
to wiring plate (from
parts bag) using UL
approved connector.
Connect house wiring
to fan wiring. Refer
to wiring diagram for
connection details.
Use screw (from
parts bag) to secure
wiring plate to fan housing. Re-install wiring
panel and secure with screw from parts bag.

RETROFIT INSTALLATION

9¾-in.
1
10½-in.
JOIST
3
Finish ceiling.
1 9
Then continue with Step 10.
Fold mounting ears
1 6
fl at against housing.
2