NuTone RDF2 User manual

RDF2
Premium
Radiation Damper
INSTALLATION GUIDE
READ AND SAVE THESE INSTRUCTIONS
Installer: leave this guide with homeowner.
Easy installation
Table of Contents
Usage 2
Tools Required 2
Preparation 2
Concrete Slab or T-Bar Construction -
UL / cUL Installation 3
Wood Construction -
Installation 3
Service Feature For Fans 4
Service Parts 4
Warranty 4
© 2019 Broan-NuTone LLC

RDF2 Installation Guide
Page 2
Usage
For use with 1, 2, or 3-Hour-Rated Floor-Ceiling and Roof-
Ceiling Designs.
Flat Ceiling / Horizontal Mount Only.
For use with the following ventilation fan models:
Broan LP50100DC
Tools Required
3Attach Damper Assembly to Fan
- or -
Mark locations on the fan housing for the mounting screws. Drill
(4) 1/8” diameter holes in the fan housing at the marked locations.
Use mounting screws provided - 1 through each side of housing.
A mask has been pre-installed to keep construction dust, drywall
spray, paint, etc. from damaging the damper and fan. Leave mask
in place during installation.
Preparation
- or -
4Plan Installation
In a suspended ceiling, locate ceiling penetration within ceiling
panels, without cutting any ceiling suspension main runners or
cross tees.
If required, a maximum of one runner or cross tee may be cut to
accommodate desired location. Cut ends must be supported by a
minimum 12 steel wire gauge (3mm) vertical hanger wire.
Leave this mask in place to prevent
construction dust, drywall spray, or paint
from damaging inside of product.
REMOVE MASK BEFORE
INSTALLING GRILLE.
Laissez ce masque en place pour empêcher
la poussière de construction, le plâtre ou la
peinture, etc. d’endommager
l’intérieur du produit.
ENLEVEZ CE MASQUE AVANT
D’INSTALLER LA GRILLE.
Deje esta cubierta en su lugar para evitar
que polvos de construcción, rocíos de yeso
o pintura dañen el interior del producto.
QUITE LA CUBIERTAANTES
DE INSTALAR LA REJILLA.
99352371A
MASK
DAMPER
ASSEMBLY
FAN
MOVE
BRACKET
FROM FAN
HOUSING TO
DAMPER
ASSEMBLY
The following steps are best performed on a work surface before
fan installation. Protect counter tops by placing corrugated sheet
under the fan.
A
B
1Remove Blower
Remove blower and all
packing material from fan
housing.
Assemble SUPPORT BRACKET (A) (supplied with radiation
damper) to fan blower as shown. Secure the bracket to motor
studs with (2) #8-32 HEX NUTS (B) supplied in radiation damper
parts bag.
2Attach Support Bracket
Re-install blower into fan housing.

RDF2 Installation Guide
Page 3
Concrete Slab or T-Bar Construction - UL / cUL Installation
Mount fan/damper assembly to the deck or ceiling structure
above or adjacent to the assembly.
If the assembly is hung from the structure above, a minimum
12 steel wire gauge (3mm) hanger wire must be used. The unit
must be hung with four wires, one on each side.
If the assembly is directly mounted to the adjacent structure, use
#8 (M4) sheet metal screws or 1/4” (6 mm) diameter bolts with
nuts to fasten it to the structure.
Position fan/damper assembly so finished ceiling is flush with
bottom edge of damper.
The ceiling opening must be no larger than the outside of the
damper.
5AInstall Fan/Damper Assembly
Leave this mask in place to prevent
construction dust, drywall spray, or paint
from damaging inside of product.
REMOVE MASK BEFORE
INSTALLING GRILLE.
Laissez ce masque en place pour empêcher
la poussière de construction, le plâtre ou la
peinture, etc. d’endommager
l’intérieur du produit.
ENLEVEZ CE MASQUE AVANT
D’INSTALLER LA GRILLE.
Deje esta cubierta en su lugar para evitar
que polvos de construcción, rocíos de yeso
o pintura dañen el interior del producto.
QUITE LA CUBIERTAANTES
DE INSTALAR LA REJILLA.
99352371A
HANGER
WIRE (4)
SEE DETAILS ON
UL CLASSIFICATION
MARKING ON PRODUCT
Wood Construction - Installation
Mount the fan/damper assembly directly to the adjacent structure.
Position fan/damper assembly so finished ceiling is flush with bot-
tom edge of damper.
The ceiling opening must be no larger than the outside of the
damper.
5BInstall Fan/Damper Assembly
Leave this mask in place to prevent
construction dust, drywall spray, or paint
from damaging inside of product.
REMOVE MASK BEFORE
INSTALLING GRILLE.
Laissez ce masque en place pour empêcher
la poussière de construction, le plâtre ou la
peinture, etc. d’endommager
l’intérieur du produit.
ENLEVEZ CE MASQUE AVANT
D’INSTALLER LA GRILLE.
Deje esta cubierta en su lugar para evitar
que polvos de construcción, rocíos de yeso
o pintura dañen el interior del producto.
QUITE LA CUBIERTAANTES
DE INSTALAR LA REJILLA.
99352371A
Leave this mask in place to prevent
construction dust, drywall spray, or paint
from damaging inside of product.
REMOVE MASK BEFORE
INSTALLING GRILLE.
Laissez ce masque en place pour empêcher
la poussière de construction, le plâtre ou la
peinture, etc. d’endommager
l’intérieur du produit.
ENLEVEZ CE MASQUE AVANT
D’INSTALLER LA GRILLE.
Deje esta cubierta en su lugar para evitar
que polvos de construcción, rocíos de yeso
o pintura dañen el interior del producto.
QUITE LA CUBIERTAANTES
DE INSTALAR LA REJILLA.
99352371A
SCREW
(3)
MOUNTING
BRACKET
SCREW OR
BOLT / NUT (3)
MOUNTING
BRACKET

RDF2 Installation Guide
Page 4
GRILLE
SLOT (2)
GRILLE
SPRING
(2)
6Finish Fan Installation
Follow instructions packed with fan to connect duct-
work and electrical wiring to fan.
Finish ceiling around damper housing.
7Install Grille
REMOVE THE MASK BEFORE INSTALLING
GRILLE OR OPERATING FAN.
Attach the grille over the inlet face of the damper by
inserting the grille springs into the slots in the sides of
the damper, then push grille against ceiling.
Service Parts
Outer Frame Mounting Screws (4) 97018839
Service Feature For Fans
If your ventilation fan needs service, the inner damper can
be removed from the outer frame without disturbing the
surrounding ceiling material.
Remove (4) screws, then lower the inner damper to
access ventilation fan. Replace the inner damper before
operating fan.
FAN OUTER
FRAME
INNER
DAMPER
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