Broan 178F User Manual
MODELS 170F, 174F & 178F
FAN FORCED WALL HEATERS
FOR USE WITH BROAN MODEL 171H
READ AND SAVE THESE INSTRUCTIONS
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.
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
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
The heater can be operated using the Broan Model 86 LineVoltage 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.
Follow these basic steps when installing this heater:
•Remove the housing mask.
•Fasten finish assembly inside housing.
•Plug assembly in.
BOLD ratings are factory wired. See "OPTIONAL WIRING
CONVERSIONS" section on pages 2 and 3 for wattage and
voltage conversion instructions.
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.
RETAINING SCREW -
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.
OPTIONAL WIRING CONVERSIONS
WIRES (connected to motor)
The heater will produce less heat and use less electricity if converted to
Disconnect ONE of the black wires with an insulated terminal from the motor.
BLACK WIRE (from motor)
2.120 VAC to 240 VAC Conversion.
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,
COMPLETE THE INSTALLATION
Fasten grille to heater with two (2) screws from parts bag.
USE AND CARE
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".
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
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.
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.
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
The duration of any implied warranty is limited to the
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
NO. NUMBER DESCRIPTION
298003036 Mounting Bracket (2 Required)
499390015 Grounding Clip
597005422 Receptacle Assembly
698006975 Wiring Cover
799020130 Blower Wheel
899080248 Motor (Models 170F and 174F)
99080252 Motor (Model 178F)
999270735 Tab Adapter
1099030194 Thermal Overload
1298006974 Element Bracket
1499270741 Heating Element (Model 170F)
99270725 Heating Element (Model 174F)
99270742 Heating Element (Model 178F)
1593270619 Wire Clamp
1697008682 Partition Plate Assembly
Always order replacement parts by part number - NOT key number.
Thermostat Wire Assembly
Overload Wire Assembly
Grille Screw (2 Required)