Nutone 8145 - Manual

INSTALLATION INSTRUCTIONS

READ & SAVE THESE INSTRUCTIONS!

IMPORTANT SAFETY INSTRUCTIONS

WARNING: TO REDUCE THE RISK OF FIRE.

ELECTRIC SHOCK, OR INJURY TO PERSONS,
OBSERVE THE FOLLOWING:

A. Use this unit only in the manner intended by the

manufacturer. If you have questions, contact the
manufacturer.

B. Before servicing or cleaning unit, switch power off at

service panel and lock service panel 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.

CAUTION:

For general ventilating use only. Do not use to

exhaust hazardous or explosive materials and vapors.

INSTALLATION INSTRUCTIONS

WARNING: TO REDUCE THE RISK OF FIRE,

ELECTRIC SHOCK, OR INJURY TO PERSONS,
OBSERVE THE FOLLOWING:

A. Installation work and electrical wiring must be done

by qualified person(s) in accordance with all
applicable codes and standards, including fire-rated
construction.

B. Sufficient air is needed for proper combustion and

exhausting of gases through the flue (chimney) of fuel
burning equipment to prevent back drafting. 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.

C. When cutting or drilling into wall or ceiling, do not damage

electrical wiring and other hidden utilities.

D. Ducted fans must always be vented to the outdoors.
E. If this unit is to be installed over a tub or shower, it must

be marked as appropriate for the application.

F. NEVER place a switch where it can be reached from

a tub or shower.

For use on inside walls which are 3

1

⁄

2

" to 6" thick.

The telescoping sleeve is adjusted to wall thickness
by removing knockouts.
• WARNING: To reduce risk of fire or electrical shock,

this fan should not be used with an additional speed
control.

• WARNING: To reduce the risk of shock, disconnect

power before servicing.

• Do not mount over tub or in shower stall enclosure.

To move

heated

air from one room to another, NuTone

recommends installing the Room-to-Room Fan within six
inches of the ceiling. Installing the fan at this height will
provided more efficient movement of heated air from room
to room.

If the fan is intended to move

cooled

air from room

to room, install the fan as close as possible to the floor.

Room-to-Room Fan

MODEL: 8145

NEW CONSTRUCTION

ADJUSTING AND MOUNTING FAN SLEEVE

1. Remove four (4) screws to separate outer sleeve

from inner sleeve.

2. The outer sleeve is the

discharge

side of the fan; make

sure the on/off switch is in the room into which air will
be blown.

3. Insert extension bracket in top of outer sleeve.
4.

Refer to Figure 1.

Loosen two screws and remove

fan and motor assembly from adjustable inner sleeve.

5. Adjust to wall thickness by removing knockouts in bottom

of adjustable sleeve. Refer to chart.

6. When adjusting sleeve, make sure both flanges will

be flush with finished walls.

7. When adjustment is complete, screw sleeves together

with four (4) screws.

8. Center and mount completed sleeve assembly to a wall

stud. Nail or screw sleeve to wall stud through holes in
the side of the sleeve.

9.

Refer to Figure 2.

Extend bracket to opposite wall stud

and secure it with nails or screws.

Wall Thickness

6"

5" – 5

1

⁄

2

"

4

1

⁄

2

" – 5"

4" – 4

1

⁄

2

"

3

1

⁄

2

" – 4"

0
1
2
3
4

Remove Knockouts

FIGURE 1

AIR FLOW

ON/OFF SWITCH

OUTER
SLEEVE

KNOCKOUTS

INNER
SLEEVE

FAN AND
MOTOR
ASSEMBLY

EXTENSION
BRACKET