Retrofit Installation - NuTone ChromaComfort Installation Manual

Remove old
1 4
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.)
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 6
Connect power cable that will
supply constant 120VAC to
unit. Attach wiring to wiring plate
(from parts bag) using UL approved
connector. Connect house wiring to
fan wiring - black to black, white to
white, and green to green or bare wire.
Use screw (from parts bag) to secure
wiring plate to fan housing. Re-install
wiring panel and secure with screw
from parts bag.
Connect 4-in. round duct.
1 8

Pull existing ducting through housing discharge
‚
opening and tape ducting to duct connector.
ƒ
Push connector/ducting back through opening.
„
Engage tabs and
bag.
Install blower.
1 9
Re-install blower removed in
Step 1. Secure blower with 2
screws from parts bag. Plug
blower into black receptacle.

RETROFIT INSTALLATION

1
secure with screw from parts
ALL INSTALLATIONS
10½-in.
9¾-in.
3
1
2
3
Fold mounting ears
1 5
flat against housing.
JOIST
2
Mount fan to
1 7
ceiling structure.
Mount
housing
to ceiling
structure with
appropriate
fasteners
in locations
shown.
4
Continue with Step 9.
TABS