MOUNTING THE HOUSING

Note: When installing in existing construction, refer to page 3

Mounting Using Mounting Tabs

Refer to Figure 2.

1.Locate fan housing next to ceiling joist.

2.Use wood screws (not provided) to loosely attach housing to ceiling joist through keyhole slots in mounting tabs.

3.Adjust housing so that it will be flush with finished ceiling. For the grille to fit properly, the housing's rim must not extend beyond finished ceiling surface.

4.When housing is properly adjusted, tighten screws in slots.

Mounting Using Hanger Bars

Refer to Figure 3.

1.Insert hanger bars in slots provded in housing.

2.Locate fan housing between joists so that the bottom of the housing is even with the planned finished ceiling.

3.Use screws or nails (not provided) to secure hanger bars to ceiling joists.

INSTALLING DUCTWORK

1.Refer to Figure 1. Place duct collar over flanges at discharge opening of fan. Secure collar by snapping tabs into slots in flanges.

2.Run 4" round duct from fan's discharge opening to the outside and terminate.

WIRING

All wiring must comply with local codes and unit must be properly grounded.

IMPORTANT: Use wire suitable for 90°C.

1.Run 120vAC house wiring from wall switches to fan location, neutral (white), ground (bare copper), and three switched hot leads. See Figure 4.

2.Insert and secure an approved box connector into wiring entrance hole.

3.Pull wires through box connector and into junction box. Tighten box connector.

4.Refer to Figure 4A. (For 8663RP or 8673RP)

Connect white wires from the fan and light receptacles to white (neutral) wire from the supply. Connect black wire to wire from fan switch. Connect red wire to wire from light switch. Connect yellow wire to wire from night light switch.

Refer to Figure 4B. (For 8664RP)

Connect white wires from the fan and light receptacles to white (neutral) wire from the supply. Connect black wire from fan (BLK) receptacle to wire from fan switch. Connect black from light (WH) receptacles to wire from light switch.

5.Connect the green (or bare) ground wire to the green ground lead.

 

 

FIGURE 3

FAN

 

LIGHT

 

RECEPTACLE

 

RECEPTACLE

B

 

 

Y

 

 

E

L

 

 

L

K

 

 

L

 

 

 

O

 

 

R

W

 

 

 

 

WHITE

E

 

 

D

 

 

 

 

FAN

LIGHT

 

NIGHT

SWITCH

SWITCH

 

LIGHT

 

 

 

SWITCH

 

8663RP or 8673RP

FIGURE 4A

120 VAC

 

 

 

 

Duct Collar

Wiring

Knockouts

Flanges

Mounting

Tabs

Bottom

Rim

FIGURE 2

GROUND

 

 

SCREW

 

 

FAN

 

LIGHT

RECEPTACLE

 

RECEPTACLE

B

WIRE NUT

 

 

 

L

 

 

K

 

 

 

 

B

 

WHITE

L

 

 

K

FAN

LIGHT

 

SWITCH

SWITCH

 

 

8664RP

FIGURE 4B

120 VAC

 

 

 

Page 2
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NuTone important safety instructions Mounting the Housing, Installing Ductwork, Wiring, 8663RP or 8673RP, 8664RP

8663RP, 8673RP, 8664RP specifications

NuTone has long been a trusted name in home ventilation and exhaust fans, and their models 8664RP, 8663RP, and 8673RP continue to prove their reputation. These bathroom fans not only aim to remove moisture and odors but also enhance the overall ambiance of your space through innovative features and sleek designs.

The NuTone 8664RP model showcases a powerful 70 CFM airflow capability, making it suitable for standard-sized bathrooms. The fan is designed for easy installation and operates with an ultra-quiet 1.5 sones, ensuring that your relaxation isn't disturbed. One of the standout characteristics of the 8664RP is its combined ceiling light feature, providing bright illumination to your bathroom while efficiently ventilating the space.

Moving on to the NuTone 8663RP, this model elevates convenience. It is equipped with a 60-watt bulb for effective lighting, which can significantly enhance visibility in your grooming areas. The fan operates at 80 CFM and maintains a low noise level of 2.5 sones, balancing power and tranquility. The versatile design of the 8663RP fits seamlessly into various bathroom decors, ensuring that it remains unobtrusive yet functional.

Meanwhile, the NuTone 8673RP is a remarkable upgrade in terms of performance. Featuring a robust 90 CFM airflow, it's designed for larger bathrooms where effective moisture removal is crucial. This model operates at an impressively quiet 1.5 sones, making it perfect for maintaining a peaceful atmosphere. An additional highlight is the integrated nightlight feature, offering soft illumination for late-night trips to the bathroom without the harsh glare of overhead lights.

All three models boast a contemporary design, allowing them to blend seamlessly with modern bathroom aesthetics. They are also equipped with easy-to-clean grilles, which help maintain hygiene with minimal effort. Each unit comes with a built-in damper that prevents backdrafts, ensuring that unwanted odors stay out.

In conclusion, the NuTone 8664RP, 8663RP, and 8673RP models stand out due to their blend of efficiency, quiet operation, and stylish designs. Whether you're renovating your bathroom or simply looking to upgrade your ventilation, these models offer a fantastic balance of performance and functionality, solidifying NuTone's commitment to quality in home improvement products.