NuTone 110RDB, 80RDB, HD50RDB, HD80RDB Specifications

DESCRIPTION

HOUSING:

• Rugged, 26-gauge galvanized steel construction

• Key-holed mounting brackets span up to 24” and are adjustable
horizontally and vertically

• Reversible knockout bracket allows wiring from top or side

• 4” round duct tting with built-in backdraft damper for easy duct

connection

BLOWER:

• Plug-in, permanently lubricated motor

• Totally enclosed motor with long life bearings designed for
continuous operation (HD80RDB, HD50RDB only)

• Centrifugal blower wheel

RADIATION DAMPER:

• For use in 1, 2 and 3 hour rated oor-ceiling and roof-ceiling

constructions

• Galvanized steel frame

• High temperature, non-asbestos, reinforced ber thermal fabric

• Stainless steel closure springs

• 165°F fusible link

GRILLE:

• Attractive steel grille painted white

• Low prole blends well with any decor

(1) rough-in Kit & (1) finish Kit maKe a
complete unit. purchase each separately.

Rough-In Kit
Model RDA • Contains housing and radiation damper

(packed 4 per carton).

Finish Kits

Models 110RDB, 80RDB, HD80RDB and HD50RDB •

Contain blower and grille (packed 4 per carton).

SPECIFICATIONS

RDA with VOLTS AMPS CFM SONES DUCT

110RDB 120 1.3 110 4.0 4”
ROUND

80RDB 120 0.5 80 2.5 4”
ROUND

HD80RDB 120 0.5 80 2.5 4”
ROUND

HD50RDB 120 0.4 50 1.5 4”
ROUND

Broan-NuTone LLC Hartford, Wisconsin www.nutone.com 888-336-3948

Architectural & Engineering Specications

February 2008

Ventilating Fans With

Radiation Dampers

MODEL

RDA

RDB

MODELS

INSTALLATION

Complete installation instructions are included with each Ventilating

Fan Kit.

ARCHITECT’S SPECIFICATION

Ventilation Fan with Radiation Damper shall be NuTone Model
RDA with 110RDB (RDA with 80RDB) (RDA with HD80RDB) (RDA
with HD50RDB).

Housing shall be made of galvanized steel and have adjustable
mounting brackets. It shall have a built-in backdraft damper and
be ducted to a roof or wall cap.

Blower shall be removable and have a centrifugal blower wheel.
Motor shall be permanently lubricated.

Air delivery shall be no less than and sound level shall be no
greater than values listed in the chart to the left. Air and sound

ratings shall be certied by HVI.

Radiation damper shall be rated for use in up to three hour ceiling

constructions. It shall be UL Classied and Warnock Hersey Listed

(see other side for installation details).

Ventilation Fan with Radiation Damper shall be Energy Star

qualied (Model HD50RDB only).

CLASSIFIED

Model

HD50RDB

only

®

REFERENCE QTY. REMARKS Project

Location

Architect

Engineer

Contractor

Submitted by Date

80B 99043057D

Ventilating Fans

with

Radiation Dampers

CLASSIFIED

FAN

SEE DETAILS ON UL

CLASSIFICATION

MARKING ON

PRODUCT

DAMPER

MOUNTING

BRACKET

WIRE

WARNOCK HERSEY LISTING

INCLUDES DAMPER ONLY. IT

DOES NOT INCLUDE EXHAUST

FAN. DAMPERS MAY BE USED
WITH UL LISTED FAN MODELS

16” OR 24” ON CENTER

MOUNTING

BRACKET

FAN

DAMPER

NOTED.

FASTENER

GRILLE

GRILLE

SCREW

CEILING

WOOD

FRAMING

MEMBER

OR JOIST

GRILLE

CEILING

GRILLE SCREW