Broan DX50L, DX70L Instructions Manual

Page 1

MODELS DX50L • DX70L

WARNING

7. If this unit is to be installed over a tub or shower, it must be
marked as appropriate for the application and be connected to
a GFCI (Ground Fault Circuit Interrupter) - protected branch circuit.

8. Never place a switch where it can be reached from a tub or shower.

9. This unit must be grounded.

10. When applicable local regulations comprises more restrictive
installation and/or certification requirements, the aforementioned
requirements prevail on those of this document and the
installer agrees to conform to these at his own expenses.

11. When performing installation, servicing or cleaning this unit, it
is recommended to wear safety glasses and gloves.

CAUTION

1. For general ventilating use only. Do not use to exhaust
hazardous or explosive materials and vapors.

2. This product is designed for ceiling installation only. This product
is designed for installation in ceilings up to a 12/12 pitch.
Ductwork must point up. DO NOT MOUNT THIS PRODUCT
IN A WALL.

3. To avoid motor bearing damage and noisy and/or unbalanced
impeller, keep drywall spray, construction dust, etc. off power unit.

4. Please read specification label on product for further information
and requirements.

HOUSING

CEILING

JOIST

MOUNTING TABS

GRILLE

CEILING

MATERIAL

POWER CABLE

4" ROUND

DUCT

ADDITIONAL

FRAMING

FAN/LIGHT COMBINATION
VENTILATORS

WARNING

TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK, OR
INJURY TO PERSONS, OBSERVE THE FOLLOWING:

1. Use this unit only in the manner intended by the manufacturer.
If you have questions, contact the manufacturer at the address
or telephonenumber listed in the warranty.

2. Before servicing or cleaning unit, switch power off at service
panel and lock the service disconnecting means to prevent
power from being switched on accidentally. When the service
disconnecting means cannot be locked, securely fasten a
prominent warning device, such as a tag, tothe service panel.

3. Installation work and electrical wiring must be done by a qualified
person(s) in accordance with all applicable codes and standards,
including fire-rated construction codes and standards.

4. Sufficient air is needed for proper combustion and exhausting
of gases through the flue (chimney) of fuel burning equipment to
prevent backdrafting. Follow the heating equipment manufacturer’s
guidelineand safety standards such as those published by the
National Fire Protection Association (NFPA), and the
American Society for Heating, Refrigeration and Air
Conditioning Engineers (ASHRAE) and the local code authorities.

5. When cutting or drilling into wall or ceiling, do not damage electrical
wiring and other hidden utilities.

6. Ducted fans must always be vented to the outdoors.

READ AND SAVE THESE INSTRUCTIONS

TYPICAL INSTALLATIONS TYPICAL INSTALLATIONS

16” ON-CENTER CEILING JOISTS

Housing mounted directly to joist.

Installer: Leave this manual with the homeowner.

Homeowner: Use and Care information on page 4.

24” ON-CENTER CEILING JOISTS

Housing mounted to additional framing.

!

30040579C

Register your product

on line at:

www.broan.ca

POWER CABLE

MOUNTING TABS

CEILING

JOIST

HOUSING

CEILING

BH0034A

MATERIAL

GRILLE

Page 2

MODELS DX50L • DX70L

SUSPENDED CEILINGS

Housing hung with wires - 3-point mount.

New Construction

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” & 1¼” 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, 90° outward. Lift housing
until tabs contact underside of joist.

Mark the keyhole slot on both mounting brackets.

New Construction

3.Set housing aside and drive nails partially into joist at the top of
both keyhole marks.

4.Hang housing from nails and pound nails tight. To ensure a
noise-free mount, pound another nail through the top hole of
each mounting tab.

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.In attic, position mounting brackets against joist. Trace outline of
housing on ceiling material.

3.Set housing aside and cut ceiling opening slightly larger than
marked.

Existing Construction

MOUNTING

TAB

GRILLE

SUSPENDED

CEILING MATERIAL

POWER

CABLE

4" ROUND

DUCT

HOUSING

5/8

1

1-1/4

BR0004

BOTTOM EDGE OF JOIST

HOLES

TA B

TYPICAL INSTALLATIONS (CONTINUED) INSTALL THE HOUSING (CONTINUED)

INSTALL THE HOUSING (CONTINUED) CONNECT THE WIRING

INSTALL THE DUCTWORK

ATTACH THE GRILLE

1. Snap the damper/duct connector onto housing. Make sure that
tabs on the connector lock into slots in housing. Top of
damper/duct connector should be flush with top of housing.

2.Connect 4” round duct to damper/duct connector and extend
duct to outside through a roof or wall cap. Check damper to
make sure that it opens freely. Tape all duct connections to
make them secure and air tight.

NOTE: The duct connector has a counter-balanced damper flap.

The flap will be “open” approx. 1” when duct connector is
attached to housing. This design permits insulation to be
in direct contact with fan/light housing per UL
(Underwriters Laboratories) standards. The slightest
backdraft, however, will close the damper flap, preventing
air from entering unit or finished space.

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.

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.

Existing Construction

1. Wire unit following diagram above. Run electrical cable as direct
as possible to unit. Do not allow cable to touch sides or top of
unit after installation is complete.

1. Slide light reflector into front of grille opening. Plug light into
WHITE receptacle. Place grille/reflector combination over
protruding screw, and fasten in place using acorn nut provided.
HAND TIGHTEN acorn nut 1/4 turn after it is snug.

1. Install light bulb (not included). (See next page for type and
size.) Insert one tab on light lens into a slot in the grille/reflector
combination. Squeeze other tab slightly and snap into remaining slot.

ADDITIONAL
MOUNTING
HOLES

FLUSH

BE0004A

BLK

VENT
SWITCH

BLU

BLK

WH T

WH T

WH T

LIGHT

(WHITE)

GRD

VENT

(BLACK)

UNIT

SWITCH BOX

LIGHT
SWITCH

LINE

IN

BLK

RED

WHT

GRD

BE0005A

SWITCH BOX

LIGHT

FAN

DUAL CONTROL

(purchase separately)

WHITE

BLACK

RED
GROUND

(bare)

WIRING

PLATE

120 VAC

LINE IN

BLUE

BLACK

RECEPTACLE

(FAN)

WHITE

RECEPTACLE

(LIGHT)

Page 3

MODELS DX50L • DX70L

SCHEMATIC WIRING DIAGRAM

BD0003