NuTone Heat-A-Ventlite 665RP

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INSTALLATION INSTRUCTIONS

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Heat-A-Ventlite

Combination

MODEL: 665RP

Type IC suitable for use under thermal insulation

LOCATION

1. Mount heater to ceiling joists, or if necessary, to a header

installed between joists.

2. Caution: Do not mount heater closer than 12" to a

vertical surface. Do not mount over tub or in shower

enclosure.

3. Installation in existing construction requires an accessible

area above the desired location. Make sure that wiring

and ducting can be run to the location.

For installation in sloped ceilings up to 12/12 pitch.

Ductwork must point up.

FIGURE 1

MOUNTING HEATER HOUSING

NEW CONSTRUCTION

Using Hanger Bars

Refer to Figure 1.

1. Insert hanger bars in slots provided in housing.

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

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

Using Side Mounting Tabs

1. Locate heater housing next to ceiling joist.

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

3. Adjust housing so that it will be flush with the finished ceiling. When housing is properly adjusted, tighten screw in slots to

secure housing.

EXISTING CONSTRUCTION

1. Determine desired location for heater.

2. Drill a small hole through the ceiling at the desired location and stick a coat hanger or stiff wire through hole into attic to

help find the location from above.

3. Check the area above to make sure that wiring and ducting can be installed and that the installation will not interfere with

existing electrical wiring.

4. From above, place the housing between ceiling joists at the desired location. Using the housing as a template, mark the

area to be cut out along the bottom flange of the housing.

5. After making the cutout, install the housing in the opening using the hanger bars or mounting tabs as described above.

Make sure that the bottom of the housing is flush with the bottom of the finished ceiling.

To register this product, visit www.nutone.com

Need help?

Do you have a question about the NuTone Heat-A-Ventlite 665RP and is the answer not in the manual?

This document provides installation instructions and a parts list for the NuTone Heat-A-Ventlite® Combination unit, Model 665RP. This device is an integrated ceiling-mounted unit that combines a heater, a vent (fan), and a light. It is designed for use in residential settings, particularly bathrooms, and is Type IC suitable for use under thermal insulation.

Function Description:

The NuTone Heat-A-Ventlite® Combination unit serves three primary functions:

Heating: It provides supplemental heating to a room, typically a bathroom, using a heater assembly with a blower wheel and heating element.
Ventilation: It includes a vent assembly with a motor and blower wheel to exhaust air from the room, helping to reduce humidity and odors.
Lighting: It incorporates a light socket for a standard incandescent bulb, providing illumination for the room.

The unit is designed to be controlled by a wall switch (not provided), allowing independent operation of the heat, vent, and light functions.

Important Technical Specifications:

Model Number: 665RP
Type: Heat-A-Ventlite® Combination
Insulation Compatibility: Type IC suitable for use under thermal insulation.
Electrical Requirements: 120VAC, 60 Hz supply wiring. The unit must be wired on a separate 20 Amp circuit.
Ducting: Requires 4" round ductwork for ventilation, which should be run to the outside of the structure through a roof or wall cap. Duct runs should be as short and straight as possible for maximum performance.
Light Bulb: Accommodates a 100 watt maximum, type A-19 light bulb.
Mounting: Designed for mounting to ceiling joists or a header, with options for new construction (using hanger bars or side mounting tabs) and existing construction.
Ceiling Pitch: Suitable for installation in sloped ceilings up to 12/12 pitch.
Safety Features: Equipped with a Self-Hold resettable thermal protector. If the heater shuts off, it indicates an overheat condition, and the unit should be turned off at the wall switch for approximately 15 minutes to allow it to reset.

Usage Features:

Integrated Design: Combines heating, ventilation, and lighting into a single ceiling-mounted unit, saving space and simplifying installation compared to separate devices.
Independent Control: The wiring diagram indicates separate connections for the light, vent, and heat functions, suggesting that these can be controlled independently via a multi-function wall switch (not included).
Aesthetic Integration: The unit includes a grille, reflector, and lens designed to blend into the ceiling, providing a clean and unobtrusive appearance.
Easy Relamping: The lens can be gently pried off with a screwdriver for easy access to replace the light bulb.

Maintenance Features:

Thermal Protector: The resettable thermal protector is a key maintenance-related safety feature. If the heater trips, it indicates a potential issue (e.g., restricted airflow, overheating). Users are instructed to turn off the unit, wait 15 minutes for it to reset, and contact a service center if it trips repeatedly. This helps prevent damage to the unit and potential fire hazards.
Ducting Maintenance: While not explicitly detailed as a maintenance feature, the instruction to keep duct runs short and straight implies that periodic inspection and cleaning of the ductwork may be beneficial to maintain optimal ventilation performance.
Light Bulb Replacement: The design allows for straightforward replacement of the light bulb by removing the lens.
Parts Availability: The manual includes a comprehensive "Parts List" with original and current replacement part numbers for all major components (e.g., hanger bar, outlet box cover, receptacles, heater assembly, vent assembly, grille, lens, reflector, lamp socket). This facilitates ordering replacement parts for repairs, extending the lifespan of the unit.
Warranty: A one-year limited warranty covers defects in materials or workmanship, with clear instructions on how to obtain warranty service, including contact information and required documentation.
Service Information: Contact information for NuTone's service department is provided for assistance, service, and parts ordering, ensuring support for users.