NuTone 655 - User Manual

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THESE INSTRUCTIONS

MODEL 655 / 659

HEATER/FAN/LIGHT

MODEL 657 FAN/LIGHT

655F, 657F AND 659F FINISH PACKS FOR USE WITH 654H HOUSING PACKS

IMPORTANT INSTRUCTIONS

READ ALL INSTRUCTIONS BEFORE INSTALLING OR

USING THIS HEATER.

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 manufacturer. 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. When cutting or drilling into wall or ceiling, do not damage electrical wiring and

other hidden utilities.

5. This heater is hot when in use. To avoid burns, do not let bare skin touch hot

surfaces. Keep combustible materials, such as furniture, pillows, bedding, papers,

clothes, etc. and curtains at least 3 feet (0.9 m) from the front of the heater.

6. Extreme caution is necessary when any heater is used by or near children or invalids

and whenever the heater is left operating and unattended.

7. Do not operate any heater after it malfunctions. Disconnect power at service panel

and have heater inspected by a reputable electrician before reusing.

8. Do not use outdoors.

9. To disconnect heater, turn controls to off, and turn off power to heater circuit at main

disconnect panel (or operate internal disconnect switch, if provided).

10. Do not insert or allow foreign objects to enter any ventilation or exhaust opening, as

this may cause an electric shock or fire, or damage the heater.

11. To prevent a possible fire, do not block air intakes or exhaust in any manner.

12. A heater has hot and arcing or sparking parts inside. Do not use it in areas where

gasoline, paint, or flammable vapors or liquids are used or stored.

13. Use this heater only as described in this manual. Any other use not recommended

by the manufacturer may cause fire, electric shock, or injury to persons.

14. This product must be grounded.

Models 655, 659 & 659F Heater/Fan/Lights ONLY (Nos. 15 through 20):

15. Do not install heater in a tub or shower enclosure.

16. This product is designed for ceiling installation only. This product is designed for

installation in ceilings up to a12/12 pitch. Ductwork must point up. DO NOT MOUNT

THIS PRODUCT IN A WALL.

17. Install heater at least 6 inches from ﬂoor or any adjacent wall.

18. Do not connect heater to dimmer switch or speed control.

19. Provide a separate 15 AMP circuit. Use 14 GA. power cable of type which meets

code. (Separate 20 AMP circuit and 12 GA. wire for Model 655.)

20. For greatest efﬁciency, install heater so heat is directed toward tub or shower area.

Avoid directing toward walls or windows.

Models 657 & 657F Fan/Lights ONLY (No. 21):

21. Acceptable for use over a bathtub or shower when installed in a GFCI protected

branch circuit.

SAVE THESE INSTRUCTIONS

PREPARATION

STEPS 1 THRU 3 - MODELS 655, 659 & 659F ONLY

1. Make sure the heater assembly is unplugged from the RED receptacle.

2. Loosen the two retaining screws on the inside of the heater discharge

opening. Place a screwdriver tip between the outer wall of the discharge

opening and the fan housing. Gently pry outward until the exhaust

discharge slips off the support lip on the outer housing. (FIG. 1)

3. Unhook hinge pins and lift heater assembly out of housing. (FIG. 2)

CAUTION: Remove the shipping ring from the heater blower inlet before

operating the heater.

4. Unplug the fan assembly from the BLACK receptacle. Remove the plastic

bag and set it aside.

5. Remove the mounting screw and carefully lift the fan assembly out of

the housing. (FIG. 3)

6. Refer to the wiring diagram of your unit on the next page. Remove

appropriate knockout(s) by inserting a screwdriver blade into slots and

bending it back and forth to break tabs. (FIG. 4)

7. Insert the adjustable mounting brackets into the bracket channels on the

housing. (FIG. 5)

FIG. 1

FIG. 2

FIG. 3

FIG. 4

FIG. 5

KNOCKOUTS

RETAINING

SCREWS

HINGE PIN

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Summary

IMPORTANT INSTRUCTIONS

Model Specific Safety Guidelines

Safety instructions for Models 655, 659, 659F Heater/Fan/Lights and Models 657, 657F Fan/Lights.

PREPARATION

Initial Preparation Steps for Models 655, 659 & 659 F

Steps 1-3 for preparing Models 655, 659, 659F, including unplugging and removing components.

INSTALLATION

General Installation Procedures

Steps 8-13 and 14-17 for installing the heater, covering placement, mounting, and wiring.

MAINTENANCE

Bulb Replacement, Lubrication, and Cleaning

Procedures for replacing the bulb, notes on lubrication, and instructions for cleaning the heater.

Summary

IMPORTANT INSTRUCTIONS

Model Specific Safety Guidelines

Safety instructions for Models 655, 659, 659F Heater/Fan/Lights and Models 657, 657F Fan/Lights.

PREPARATION

Initial Preparation Steps for Models 655, 659 & 659 F

Steps 1-3 for preparing Models 655, 659, 659F, including unplugging and removing components.

INSTALLATION

General Installation Procedures

Steps 8-13 and 14-17 for installing the heater, covering placement, mounting, and wiring.

MAINTENANCE

Bulb Replacement, Lubrication, and Cleaning

Procedures for replacing the bulb, notes on lubrication, and instructions for cleaning the heater.

This document describes the installation, operation, and maintenance of the Broan Model 655/659 Heater/Fan/Light and Model 657 Fan/Light units, including finish packs 655F, 657F, and 659F for use with 654H housing packs.

Function Description

The Broan Model 655/659 is a multi-function unit designed for ceiling installation, providing heating, ventilation (fan), and lighting in one integrated device. The Model 657 is a fan and light combination, also for ceiling installation. These units are intended for indoor use, primarily in bathrooms or similar areas where localized heating, air circulation, and illumination are desired. The heater function (available in Models 655/659) is designed to direct heat towards specific areas like a tub or shower for maximum efficiency. The fan provides ventilation to reduce humidity and odors, while the light offers general illumination.

Usage Features

The units are designed for ease of use and integration into a home environment. For Models 655, 659, and 659F, the heater, fan, and light functions can be operated independently, allowing users to select the desired function(s) as needed. The fan/light models (657 and 657F) provide ventilation and lighting.

Installation involves mounting the housing between ceiling joists, ensuring the bottom edge is flush with the finished ceiling. The units are designed for ceilings up to a 12/12 pitch, and ductwork for the fan must point upwards. For optimal heating, the heater should be installed to direct heat towards the tub or shower area, avoiding walls or windows. It is crucial to install the heater at least 6 inches from the floor or any adjacent wall. The heater should not be connected to a dimmer switch or speed control. A separate 15 AMP circuit is required for Models 655, 659, and 659F (with 14 GA power cable), and a separate 20 AMP circuit with 12 GA wire for Model 655.

The fan/light models (657 and 657F) are acceptable for use over a bathtub or shower when installed in a GFCI protected branch circuit, offering enhanced safety in wet environments.

Before initial operation, it is essential to ensure that the heater assembly is properly installed according to the detailed preparation and installation steps provided in the manual. This includes removing the shipping ring from the heater blower inlet before operating the heater. The grille must be installed correctly, with the acorn nut and tooth washer attaching to the threaded rod through the proper hole in the light reflector, to prevent overheating or fire.

To replace the light bulb, the lens can be removed by gently depressing its sides and pulling it down. The units accommodate a bulb rated up to 100 watts.

Maintenance Features

Regular maintenance is key to ensuring the longevity and safe operation of the device. The manual outlines a simple cleaning procedure that should be performed monthly:

Turn off power: Always begin by switching off the power at the service panel to prevent accidental activation and ensure safety.
Cooling: Allow the heating element (if applicable) to cool down completely before proceeding with cleaning.
Cleaning: Use a soft brush attachment to gently vacuum the grille openings. Alternatively, the grille can be wiped clean with a soft cloth. This helps remove dust and debris that can accumulate and potentially impede airflow or reduce efficiency.
Restore power: Once cleaning is complete, restore power at the service panel.

An important note regarding lubrication: the heater is permanently lubricated and does not require oiling or disassembly for lubrication purposes. This simplifies maintenance and reduces the need for specialized servicing.

Safety Precautions

Throughout the manual, several safety precautions are highlighted to prevent fire, electric shock, or injury to persons. These include:

Using the unit only as intended by the manufacturer.
Switching off and locking out power at the service panel before servicing or cleaning.
Ensuring installation work and electrical wiring are performed by qualified personnel in accordance with all applicable codes and standards, including fire-rated construction codes.
Avoiding damage to electrical wiring or other hidden utilities when cutting or drilling into walls or ceilings.
Keeping combustible materials at least 3 feet (0.9 m) away from the front of the heater.
Exercising extreme caution when the heater is used near children or invalids, or when left operating unattended.
Not operating a malfunctioning heater; instead, disconnecting power and having it inspected by a reputable electrician.
Not using the unit outdoors.
Not inserting foreign objects into ventilation or exhaust openings.
Not blocking air intakes or exhaust to prevent fire.
Not using the heater in areas where gasoline, paint, or flammable vapors or liquids are used or stored.
Ensuring the product is grounded.
For Models 655, 659, and 659F, not installing the heater in a tub or shower enclosure.
Not storing or using gasoline or other flammable vapors and liquids in the vicinity of the heater.
Never immersing metal and electrical parts in water during cleaning.

These guidelines emphasize the importance of proper installation, careful operation, and regular, safe maintenance to ensure the long-term, reliable performance of the Broan heater/fan/light and fan/light units.

NuTone 655 Specifications

General

Sound Level	4.0 Sones
Grille	Polymeric
Blade Span	Not applicable
Mounting Type	Ceiling
Finish	White
Type	Ceiling
Duct Size	4 inch
Housing	Steel
Material	Metal and plastic