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MODEL  773BNNT 

DECORATIVE VENTILATION 

FAN WITH LIGHT

READ AND SAVE THESE INSTRUCTIONS

TYPICAL INSTALLATIONS

HOUSING

MOUNTING TABS

POWER CABLE

GRILLE

PAN

GLASS

LIGHT SHADE

CEILING

JOIST

CEILING

MATERIAL

HOUSING

HOUSING MOUNTED

DIRECTLY TO JOIST 

2x6 (or larger) 

Discharge parallel to joists.

HOUSING

2 x 4

CEILING

JOIST or

TRUSS

MOUNTING

TABS

POWER CABLE

ADDITIONAL

FRAMING

2 x 4

CEILING

JOIST or

TRUSS

GRILLE

PAN

GLASS

LIGHT SHADE

CEILING

MATERIAL

HOUSING MOUNTED 

TO 2x4 TRUSS

Requires additional framing

for mounting tabs.

Discharge parallel to joists.

HOUSING

MOUNTING

TABS

POWER CABLE

ADDITIONAL

FRAMING

"

I

"

JOIST

"

I

"

JOIST

GRILLE

PAN

GLASS LIGHT SHADE

CEILING

MATERIAL

HOUSING MOUNTED TO “I” JOIST

Requires additional framing 

for mounting tabs.

Discharge parallel to joists.

*

 Additional framing must be a 2x6 (minimum height), at least 9-inches long.

*

*

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 manufac-

turer. If you have questions, contact the manufacturer at 

the address or telephone number 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, to the 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 guideline and 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 dam-

age electrical wiring and other hidden utilities.

6.  Ducted fans must always be vented to the outdoors.
7.  DO NOT install in a tub or shower enclosure.
8.  This unit must be grounded.
9.  This unit is U.L. listed. Type I.C. inherently protected.

CAUTION  

!

1.  For general ventilating use only. Do not use to exhaust 

hazardous or explosive materials and vapors.

2.  This product is designed for installation in FLAT CEILINGS 

ONLY. Do not mount this product in a wall.

3.  The light fixture assembly must be mounted to the fan 

housing  assembly  included  with  this  product.  Do  not 

mount the light fixture assembly to a wiring outlet box.

4.  To avoid motor bearing damage and noisy and/or unbal-

anced impellers, keep drywall spray, construction dust,

etc. off power unit.

5.  Please  read  specification  label  on  product  for  further 

information and requirements.

Installer: 

Leave this manual with the 

homeowner.
Homeowner: 

Use and Care information on page 4.

PLAN THE INSTALLATION

SUSPENDED CEILINGS

Housing hung with wires - 

3-point mount.

MOUNTING

TAB

GRILLE

PAN

SUSPENDED

CEILING

MATERIAL

POWER

CABLE

4" ROUND

DUCT

HOUSING

GLASS

LIGHT SHADE

ROOF CAP*

(with built-in

damper)

WALL CAP*

(with built-in

damper)

4-IN. ROUND

ELBOWS*

4-IN. ROUND

DUCT*

FAN

HOUSING

Seal gaps

around

housing.

Seal duct

joints with

tape.

Keep duct

runs short.

INSULATION

(Place around and

over fan housing.)

POWER

CABLE*

*Purchase

separately.

OR

Summary of Contents for 773BNNT

Page 1: ...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 guideline and safety standa...

Page 2: ...ousing 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 ceil...

Page 3: ...h 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 1 Wire unit following diagram above Run electrical cable as direct as po...

Page 4: ...n or part thereof to the extent NuTone finds it to be covered by and in breach of this limited warranty NuTone will ship the repaired or replaced Fan or replacement parts to you at no charge You are r...

Page 5: ...Aire American Society for Heating RefrigerationandAirConditioningEngineers ASHRAE y los c digos locales ditioning Engineers ASHRAE y las autoridades de los c digos locales 5 Cuando corte o perfore la...

Page 6: ...ra en la posici n adecuada para ese espesor del material del cielo raso Caracter stica adicional para la colocaci n en material de cielo raso de 1 3 cm Doble a 90 y hacia afuera las dos aletas que se...

Page 7: ...a que el cable toque los costados ni la parte superior de la unidad despu s de que la instalaci n est terminada DIAGRAMA EL CTRICO N E G R O C O M M V E N T A Z U L N E G R O B L A N C O L A M P B L N...

Page 8: ...repuesto o reparar o reemplazar sin cargo alguno cualquier ventilador o pieza del mismo hasta el grado en que NuTone lo encuentre cubierto bajo esta garant a limitada y en incumplimiento de la misma...

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