BROAN 120 Series Register Heaters Owner’s Manual

August 7, 2024
Broan

BROAN 120 Series Register Heaters

Specifications:

  • Models: 120, 124, 128
  • Intended Use: Register Heaters
  • Installation: Horizontal wall installation only
  • Power Source: Line Voltage
  • Control: Compatible with Broan Model 86 Line-Voltage Thermostat (sold separately)

Product Usage Instructions

Installation Guidelines:

  1. Ensure all electrical work complies with local/national codes and is grounded.
  2. Turn off power and lock out service panel before wiring, servicing, or cleaning to prevent electrical shock.
  3. Install the heater horizontally on a wall at least 6 inches above the floor.
  4. Avoid obstructing airflow by not placing the heater behind doors, furniture, or drapes.
  5. Provide the heater with a properly rated electrical circuit to prevent tripped breakers or blown fuses.
  6. Do not connect the heater to a dimmer switch or speed control.
  7. Avoid introducing drywall spray or construction dust to prevent motor damage and noise.

Installation Planning:
The heater is designed for supplemental heat in new or existing construction.

Consider the following:

  • Operate the heater using Broan Model 86 Line-Voltage Thermostat (purchase separately).
  • Ensure proper line voltage and power cable are supplied.
  • Power can be tapped from a nearby circuit based on heater wattage and circuit amperage.
  • Convertible to half-wattage to prevent overloading circuits.

Model Ratings:

Models Volts Amps Watts BTU/HR

FAQ:

  1. Q: Can the heater be mounted in positions other than horizontally on a wall?
    A: No, the heater should only be installed horizontally on a wall for safety and optimal performance.

  2. Q: Is it safe to connect the heater to a dimmer switch?
    A: No, connecting the heater to a dimmer switch or speed control is not recommended to prevent damage or malfunction.

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 heater is intended to be used to supply supplemental heat from a wall location in new or existing construction.
The heater can be operated using the Broan Model 86 Line-Voltage Thermostat from a wall location. Purchase the control separately.
Plan to supply the heater with proper line voltage and appropriate power cable.
NOTE: Power can be tapped from a nearby circuit depending on the heater wattage required and the amperage rating of the circuit.
Heater can be converted to half-wattage to avoid over-loading such circuits.
The table below lists the ratings for each model.

MODELS VOLTS AMPS WATTS BTU/HR

120

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


124

| 120| 12.5/6.25| 1500 /750| 5120 /2560
240| 6.25| 1500| 5120
208| 5.41| 1125| 3840
128| 240| 6.33 /4.16| 2000 /1000| 6827 /3413
208| 7.21/3.61| 1500/750| 5120/2560

INSTALLER: Leave This Manual With The Homeowner. HOMEOWNER: Use and Care Information on Page 3.
BOLD ratings are factory wired. See “OPTIONAL WIRING CONVERSION” section for wattage and voltage conversion instructions.
Follow these basic steps when installing this heater.

  • Nail housing to studs.
  • Connect power cable.
  • Fasten heater assembly and grille to housing. (FIG. 1)

PREPARE THE HOUSING

  1. Remove the retaining screw, unplug wiring harness and lift heater assembly from housing. (FIG. 2)
  2. Slide the wiring cover out of housing. (FIG. 3)

INSTALL THE HEATER

(16″-ON-CENTER STUDS ONLY)
NOTE: Locate housing at least 6″ from the floor and any adjacent walls.

  1. Choose which side of housing will be mounted directly to a wall stud. Then insert a mounting bracket from the opposite side into the channel at the top of the housing. (FIG. 4) ****
  2. Use measuring guide on side of housing to position housing so that it will be flush with finished wall. Drive to (2) nails through the holes on side of housing and into stud. (FIG. 5)
  3. Extend mounting bracket, level housing, and nail to other stud. (FIG. 6)

(24″-ON-CENTER STUDS ONLY)

  1. Choose which side of housing will be mounted directly to a wall stud. From this side, push a mounting bracket as far as possible into the channel at the top of the housing.
    NOTE: Locate housing at least 6″ from the floor and any adjacent walls.

  2. Use measuring guide on side of housing to position housing so that it will be flush with finished wall. Drive two (2) nails through the holes in side of housing and into stud. (FIG. 7)

  3. Secure the two (2) mounting brackets together (with screw supplied). Level housing and nail to opposite stud, as shown.

WIRE THE HEATER
(ALL INSTALLATIONS)

  1. Feed electrical power cable through open knock-out in corner of housing and attach with appropriate connector. Allow 6″ of wire inside of housing.
    NOTE: Use other housing knockout when wiring units in parallel. (FIG. 8)

  2. Connect black to black, white to white. Use grounding clip to attach green or bare wire to housing. Replace wiring cover. (FIG. 9)

OPTIONAL WIRING

CONVERSIONS (FIGS. 10, 11, 12)

  1. Conversion to half-wattage. (FIG. 10)
    The heater will produce less heat and use less electricity if converted to half-wattage. Disconnect ONE of the two (2) black wires (with insulated terminals) from the motor.

  2. 120 VAC to 240 VAC Conversion (FIGS. 11 & 12)(Factory-wired 120 VAC Models 120 and 124 ONLY) These heaters can be converted to operate on 240 VAC.

  3. Disconnect ONE of the two (2) black wires (with insulated terminals) from the motor.

  4. Disconnect the two (2) white wires (with insulated terminals) from each other. Do not remove the white wire from beneath plastic wire tie.

  5. Connect the black wire to the white wire.
    NOTE: When heater is converted from 120 VAC to 240 VAC, half-wattage conversion is not possible.

COMPLETE THE INSTALLATION

(NEW CONSTRUCTION)

  1. A housing mask has been provided to keep construction dust, drywall spray, paint, etc. from damaging heater.
    Bend the flaps on the mask and push it into the heater housing.
    NOTE: Mask can be put in place before or after heater assembly is reinstalled.

  2. Remove mask before operation.
    (ALL INSTALLATIONS)

  3. Secure heater assembly with retaining screw and plug wiring harness into receptacle.

  4. Fasten grille to heater with two (2) screws provided. (FIG. 13)

  5. 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 assembly 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 overheating 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 ONE YEAR LIMITED WARRANTY

Broan 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 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

  • normal maintenance and service or
  • any products or parts which have been subject to misuse, negligence, accident, improper maintenance or repair (other than by Broan), faulty installation or installation contrary to recommended installation instructions.

The duration of an 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’S OBLIGATION TO REPAIR OR REPLACE, AT BROAN’S OPTION, SHALL BE THE PURCHASER’S SOLE AND EXCLUSIVE REMEDY UNDER THIS WARRANTY. BROAN 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 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

  • notify Broan at the address or telephone number below,
  • give the model number and part identification and
  • 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

MODELS 120, 124 & 128

KEY NO. PART NO. DESCRIPTION
1 97008853 Housing
2 98003036 Mounting Bracket (2 Required)
3 * #8–18 Sheet Metal Nut (2 Required)
4 99390015 Grounding Clip
5 97005422 Receptacle Assembly
6 98006975 Wiring Cover
7 99020130 Blower Wheel
8 99080248 Motor (Models 120 and 124)
99080252 Motor (Model 128)
9 99270735 Tab Adaptor
10 99030194 Thermal Overload
11 99271091 Guard
12 98006974 Element Bracket
13 99150491 Screw, #8–18 x 3/8 Ph. Pan Head (5 Required)
14 99270741 Heating Element (Model 120)
99270725 Heating Element (Model 124)
99270742 Heating Element (Model 128)
15 93270619 Wire Clamp
16 97008682 Partition Plate Assembly
17 99260428 Nut, #6–32 x 5/16 Keps (2 Required)
18 97008856 Plug Assembly
19 97008678 Overload Wire Assembly
20 * Screw, #8–18 x 5/8 Ph. Pan Head
21 97013821 Grille (Includes Parts Bag**)
22 * Grille Screw (2 Required)
23 93270493 Wire Tie

24
**| 99140470
97008724| Screw, #8–18 x 3/8 Ph. Truss Head
Parts Bag (contains Key Nos. 3, 20 & 21)

*Standard hardware – may be purchased locally.

  • **Not shown.
    Always order replacement parts by”PART NO.”— NOT by “KEY NO.”

References

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