BROAN 170F Fan Forced Wall Heaters

Product Information:

The Models 170F, 174F, and 178F Fan Forced Wall Heaters are designed as finish assemblies for use with the Broan Model 171H Rough-In Housing. These wall heaters provide efficient heating for your space.

Important Safety Instructions:

• All electrical work must be done in accordance with local or national electrical codes. The product must be grounded for safety.
• If you are unfamiliar with installing electrical wiring, it is recommended to hire a qualified electrician.
• When wiring, servicing, or cleaning the unit, always turn off power and lock out the service panel to prevent electrical shock.
• Avoid installing the unit in areas where chemicals or flammables are stored, as it may cause explosion or fire.
• Do not install the unit in any position other than horizontally on a wall.
• Ensure the heater is at least 6 inches away from the floor or any adjacent vertical surface.
• Do not place the heater behind a door, furniture, drapes, or any other obstruction that restricts airflow.
• Provide the heater with an appropriately rated electrical circuit to prevent tripped breakers or blown fuses.
• Do not connect the heater to a dimmer switch or speed control.
• Avoid getting drywall spray, construction dust, or any other debris on the power unit to prevent motor bearing damage and noise issues.

Product Usage Instructions

Planning the Installation:

The wall heater finish assembly is intended for installation into the Broan Model 171H rough-in housing after the wall has been completed. Before starting the installation, make sure to plan the placement of the heater and ensure all necessary components are available.

Install the Heater Assembly:

1. Remove the housing mask and ensure that the wall has been finished, including paint or wallpaper.
2. Take out and discard the cardboard mask from inside the housing.
3. Place the heater assembly into the housing, ensuring that the element end is positioned behind the tabs on the left side of the housing.
4. Pivot the assembly in and fasten it with the retaining screw from the parts bag.
5. Plug the wiring harness into the receptacle.

Provide Desired Control:

The heater finish assembly does not have an adjustable thermostat control. Depending on your preference, follow one of the following steps:

• If a wall-mounted control has been pre-wired, no additional steps are required.
• If a built-in thermostat is desired, purchase and insert the Broan Model 83 Integral Thermostat at this time.

Optional Wiring Conversions:

Refer to the wiring diagram and instructions provided in the manual for optional wattage and voltage conversion instructions.

Please refer to the specification label on the product for further information and requirements.

For more detailed information, please refer to the user manual available at https://manual-hub.com/.

MODELS 170F, 174F & 178F
FAN FORCED WALL HEATERS
FINISH ASSEMBLIES
FOR USE WITH BROAN MODEL 171H ROUGH-IN HOUSI

READ AND SAVE THESE INSTRUCTIONS

WARNING

1. ALL ELECTRICAL WORK MUST BE DONE IN ACCORDANCE WITH LOCAL OR NATIONAL ELECTRICAL CODE AS APPLICABLE. FOR SAFETY, THIS PRODUCT MUST BE GROUNDED. IF YOU ARE UNFAMILIAR WITH METHODS OF INSTALLING ELECTRICAL WIRING, SECURE THE SERVICES OF A QUALIFIED ELECTRICIAN.

2. WHEN WIRING, SERVICING OR CLEANING THIS UNIT,TURN OFF POWER AND LOCK OUT SERVICE PANEL.
   FAILURE TO DO SO COULD ALLOW OTHERS OR THERMOSTAT TO TURN ON POWER UNEXPECTEDLY WHICH MAY CAUSE FATAL ELECTRICAL SHOCK.

3. To avoid electrical shock:

   • DO NOT install unit in a tub or shower enclosure or any location where it may come in contact with water.
   • NEVER place a switch where it can be reached from a tub or shower.

4. DO NOT install this unit in an area where chemicals or other flammables are stored or used. Explosion and fire may result.

CAUTION

1. This product may ONLY be installed horizontally in a wall.
   DO NOT MOUNT IN ANY OTHER POSITION.

2. Install heater at least 6” from floor or any adjacent vertical surface.

3. DO NOT locate heater behind a door, furniture, drapes, etc., where the air flow to the unit would be restricted.

4. Provide heater with an appropriately-rated electrical circuit to prevent tripped breakers or blown fuses. (See chart below).

5. DO NOT CONNECT HEATER TO DIMMER SWITCH OR SPEED CONTROL.

6. To avoid motor bearing damage and noisy and/or unbalanced impellers, keep drywall spray, construction dust, etc., off power unit.

7. Please read specification label on product for further information and requirements.

PLAN THE INSTALLATION

This wall heater finish assembly is intended for installation into a Broan Model 171H rough-in housing — after the wall has been completed.
The heater can be operated using the Broan Model 86 Line-Voltage Thermostat from a wall location or the Broan Model 83 Integral Thermostat installed into heater. Purchase the control separately.

The table below lists the ratings for each model.

170F

| 120| 8.33/ 4.16| 1000 /500| 3413/ 1707
240| 4.16| 1000| 3413
208| 3.61| 750| 2560

174F

| 120| 12.5/ 6.25| 1500/ 750| 5120/ 2560
240| 6.25| 1500| 5120
208| 5.41| 1125| 3640
178F| 240

208

| 8.33/ 4.16

7.21/3.61

| 2000/ 1000

1500/750

| 6827/ 3413

5120/2560

BOLD ratings are factory wired. See “OPTIONAL WIRING CONVERSIONS” section on pages 2 and 3 for wattage and voltage conversion instructions.

Follow these basic steps when installing this heater:

• Remove the housing mask.
• Fasten finish assembly inside housing.
• Plug assembly in.
• Attach grille.

INSTALL THE HEATER ASSEMBLY

1. Remove housing mask.
   Make sure wall has been finished (including paint or wall paper, etc.) Take out and discard the cardboard mask from inside of housing.

2. Install heater assembly into housing.
   Place element end of heater assembly behind the tabs on the left side of housing. Pivot the assembly in and fasten with retaining screw from parts bag.
   Plug wiring harness into receptacle.

3. Provide desired control.
   The heater finish assembly has no adjustable thermostat control.
   If a wall-mounted control has been pre-wired, nothing else need be done.
   If a built-in thermostat is desired, purchase and insert the
   Broan Model 83 Integral Thermostat at this time.

WIRING DIAGRAM

OPTIONAL WIRING CONVERSIONS

1. Conversion to half-wattage.
   The heater will produce less heat and use less electricity if converted to half-wattage.
   Disconnect ONE of the black wires with an insulated terminal from the motor.

2. 120 VAC to 240 VAC Conversion.

(Factory-wired 120 VAC Models 170F and 174F ONLY)

1. Disconnect ONE of the black wires with an insulated terminal from the motor.
2. Disconnect the two (2) white wires with insulated terminals from each other. Do not remove wire from beneath plastic wire tie.
3. Connect black wire to white wire.

NOTE: When heater is converted from 120 VAC to 240 VAC, half-wattage conversion is not possible

COMPLETE THE INSTALLATION

1. Attach grille.
   Fasten grille to heater with two (2) screws from parts bag.

2. Check operation.
   Turn on power at service entrance. Turn thermostat to its highest setting and make sure heating element and blower come on. Then turn it to its lowest setting and make sure element and blower shut off.

USE AND CARE

WARNING
DISCONNECT ELECTRIC POWER AT SERVICE ENTRANCE BEFORE CLEANING OR SERVICING UNIT. THERMAL OVERLOAD PROTECTOR
If heater fails to operate when thermostat is turned to its highest setting: Turn power off at service entrance. Remove grille and press button marked “RESET”.

CLEANING

Clean the heater using the round brush tool on your vacuum cleaner. Remove large accumulations of dust, lint, etc., that might impede the flow of air through the heater. Such blockage will lower its efficiency and create a possible over-heating condition.
To clean grille, use a soft cloth which has been moistened with household window cleaner.

CAUTION: METAL AND ELECTRICAL PARTS SHOULD NEVER BE IMMERSED IN WATER.

Broan-NuTone LLC One Year Limited Warranty

Broan-NuTone LLC warrants to the original consumer purchaser of its products that such products will be free from defects in materials or workmanship for a period of one year from the date of original purchase. THERE ARE NO OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
During this one-year period, Broan-NuTone LLC will, at its option, repair or replace, without charge, any product or part which is found to be defective under normal use and service.

THIS WARRANTY DOES NOT EXTEND TO FLUORESCENT LAMP STARTERS AND TUBES. This warranty does not cover (a) normal maintenance and service or (b) any products or parts which have been subject to misuse, negligence, accident, improper maintenance or repair (other than by Broan-NuTone LLC), faulty installation or installation contrary to recommended installation instructions. The duration of any implied warranty is limited to the one-year period as specified for the express warranty. Some states do not allow limitation on how long an implied warranty lasts, so the above limitation may not apply to you.
BROAN-NUTONE LLC’S OBLIGATION TO REPAIR OR REPLACE, AT BROAN-NUTONE LLC’S OPTION, SHALL BE THE PURCHASER’S SOLE AND EXCLUSIVE REMEDY UNDER THIS WARRANTY. BROAN-NUTONE LLC SHALL NOT BE LIABLE FOR INCIDENTAL, CONSEQUENTIAL OR SPECIAL DAMAGES ARISING OUT OF OR IN CONNECTION WITH PRODUCT USE OR PERFORMANCE.
Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you.
This warranty gives you specific legal rights, and you may also have other rights, which vary from state to state. This warranty supersedes all prior warranties.
To qualify for warranty service, you must (a) notify Broan-NuTone LLC at the address or telephone number below, (b) give the model number and part identification and (c) describe the nature of any defect in the product or part. At the time of requesting warranty service, you must present evidence of the original purchase date.
Broan-NuTone LLC, 926 West State Street, Hartford, WI 53027 (1-800-637-1453)

SERVICE PARTS

FAN-FORCED WALL HEATER

KEY

NO.

| PART

NUMBER

| ****

DESCRIPTION

---|---|---
1| 97008681| Housing

Mounting Bracket (2 Required)

8-18 Sheet Metal Nut (2 Required) Grounding Clip

Receptacle Assembly Wiring Cover

Blower Wheel

Motor (Models 170F and 174F) Motor (Model 178F)

Tab Adapter Thermal Overload Guard

Element Bracket

Screw, #8-18 x 3/8 Ph. Pan Head (5 Required)

Heating Element (Model 170F) Heating Element (Model 174F) Heating Element (Model 178F) Wire Clamp

Partition Plate Assembly

2| 98003036
3| 99260512
4| 99390015
5| 97005422
6| 98006975
7| 99020130
8| 99080248
 | 99080252
9| 99270735
10| 99030194
11| 99271091
12| 98006974
13| 99150491
14| 99270741
 | 99270725
 | 99270742
15| 93270619
16| 97008682
17| 99260428| Nut, #6-32 x 5/16 Keps (2 Required)
---|---|---
18| 97008675| Plug Assembly
19| 97008677| Thermostat Wire Assembly
20| 97008678| Overload Wire Assembly
21| 99270743| Terminal Jumper
22| 99150533| Screw, #8-18 x 5/8 Ph. Pan Head
23| 98006970| Grille
24| 99150528| Grille Screw (2 Required)
25| 99090681| Grille Logo
26| 99090688| Cover Label
27| 93270493| Wire Tie
28| 99150470| Screw, #8-18 x 3/8 Ph. Truss Hd.

Always order replacement parts by part number – NOT key number.

Broan-NuTone LLC, 926 West State Street, Hartford, WI 53027

References

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