Mounting the Housing, Wiring, Ballast Installation

MOUNTING THE HOUSING

1.Refer to Figure 3. Insert mounting brackets at each end of housing.

2.Place long side of housing parallel to ceiling joist. Position housing in desired location. Make sure housing flange is even with the planned finished ceiling.

3.Use screws or nails (not provided) to secure mounting brackets to ceiling joists.

4.Refer to Figure 1. Use 4" round duct to discharge the ventilator to the outside.

IMPORTANT: Be sure nothing obstructs the discharge of the ventilator. Make sure that insulation does not get into the duct work or into the fan.

WIRING

Refer Figure 2.

1.Run 120v AC house power wiring (with ground) through switch box to junction box in ventilator housing.

2.Remove ventilator junction box cover.

3.Connect white supply common lead to white leads from fan and light receptacle. Connect black supply wire from fan switch to black wire from fan receptacle. Connect black supply wire from light switch to black wire from light receptacle. Connect supply ground wire to green ground screw.

4.Replace junction box cover.

NOTE: BE SURE VENTILATOR AND SWITCH ARE PROPERLY GROUNDED. ALL WIRING MUST COMPLY WITH LOCAL ELECTRICAL CODES.

BALLAST INSTALLATION

1.Refer to Figure 4. Slide ballast tab into slot in housing side and secure ballast with mounting screw.

2.Insert the plug from the ballast with white and black leads, into the three pin receptacle on the wiring compartment cover.

POWER/BLOWER UNIT INSTALLATION

1.Plug motor into socket in housing's junction box.

2.Remove the mounting screw from the housing.

3.Position the power unit in the housing using the guide on the blower housing to engage the opening in the housing.

4.Slide the blower forward and install the mounting screw securely.

5.Refer to Figure 3. Securely tighten screw.

INSTALLATION IN EXISTING CONSTRUCTION

Installing the ventilator in an existing house requires an accessible area (attic crawl space) above the planned installation location.

Review “INSTALLATION IN A NEW CONSTRUCTION” and follow all instructions which apply to your installation.

Location – locate ventilator parallel to a ceiling joist.

Wiring and Ducting – plan ducting and wiring before proceeding with installation.

Refer to Figure 2 for wiring and Figure 1 for ducting. CAUTION: Check area above planned installation to be sure that:

1.Ducting can be installed.

2.Wiring can be run to the planned location.

3.No wiring or other obstructions might interfere with installation.

INSTALLATION FROM ACCESSIBLE AREA ABOVE

1.From below, drill a small hole in ceiling at the planned location. Stick clothes hanger through hole to help locate it.

2.Locate hole in attic or crawl space.

3.In attic or crawl space, mark ceiling for cutout by using the housing as a template. The long side of cutout must be parallel

to ceiling joist.

4.Make cutout along marked line.

NOTE: If ceiling is plaster, cutout should be made from below to avoid chipping plaster.

5.Install housing, connect wiring and ducting, install power unit/blower assembly and install grille.

DISCHARGE OPENING
HOUSING
	MOUNTING
	BRACKET
MOUNTING SCREWS	POWER UNIT
	GRILLE
	NOTCHED BOSS
	MOUNTING SPRING
	FIGURE 3

BALLAST ASSEMBLY

BLUE AND RED

WIRES

BLACK AND

WHITE WIRES

FIGURE 4

LS100LF, LS80LF specifications

The NuTone LS80LF and LS100LF are advanced ventilation fans tailored for modern residential needs. With an emphasis on improving indoor air quality, these models bring cutting-edge technology and thoughtful design to any home environment.

The LS80LF boasts an impressive airflow capacity of 80 CFM, making it ideal for smaller to medium-sized bathrooms or laundry rooms. This model operates quietly at a mere 1 sones, ensuring that homeowners can enjoy a peaceful atmosphere, whether they're using the bathroom or engaging in chores. The LS100LF, on the other hand, offers a more powerful airflow of 100 CFM, catering to larger spaces while still maintaining a whisper-quiet operation of 0.7 sones.

One of the standout features of both models is the integrated LED lighting. This energy-efficient lighting not only enhances visibility in wet areas but also contributes to energy savings, as LED lights consume less power compared to traditional bulbs. The LS80LF and LS100LF are designed with a sleek, unobtrusive appearance, allowing them to seamlessly blend into the decor of any bathroom.

Both models also incorporate NuTone’s innovative TrueSeal technology, which minimizes air leakage compared to traditional fans. This feature helps to maintain energy efficiency by preventing conditioned air from escaping. The fans come with a durable housing that is constructed from high-quality materials, designed to withstand the humid conditions typical in bathrooms and laundry areas.

Installation is simplified due to the fan’s easy-to-follow instructions, and they fit into standard ceiling cutouts, making them a great choice for either new construction or retrofitting in existing homes.

Lastly, the LS80LF and LS100LF come with a flexibility of controls. The fans can be wired to a wall switch or paired with a humidity or motion sensor to enhance user convenience. Overall, the NuTone LS80LF and LS100LF are exemplary models that prioritize performance, efficiency, and user-friendliness, making them a smart investment for any home focused on better air quality and comfort.