Installation Directions

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FRA Series

(Series B)

Fan Forced

Wall Heaters

Read Carefully - These instructions are written to help

you prevent difficulties that might arise during installation of

heaters. Studying the instructions first may save you con-

siderable time and money later. Observe the following pro-

cedures and cut your installation time to a minimum.

1. To prevent electrical shock, disconnect all power coming

to heater at main service panel before wiring or servicing.

2. All wiring must be in accordance with the National and

Local Electrical Codes and the heater must be grounded

as a precaution against possible electric shock.

3. Verify the power supply voltage coming to heater match-

es the ratings printed on the heater nameplate before

energizing.

4. This heater is hot when in use. To avoid burns, do not let

bare skin touch hot surfaces.

5. Do not insert or allow foreign objects to enter any ventila-

tion or exhaust opening as this may cause an electric

shock, fire, or damage to the heater.

6. To prevent a possible fire, do not block air intakes or

exhaust in any manner. Keep combustible materials, such

as crates, drapes, etc., away from heater. Do not install

behind doors, furniture, towels, or boxes.

7. A heater has hot and arcing (sparking) parts inside. Do

not use it in areas where gasoline, paint, or flammable

liquids are stored.

8. 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.

9. This heater is not approved for use in corrosive atmos-

pheres, such as marine, green house, or chemical stor-

age areas.

WARNING

SAVE THESE INSTRUCTIONS

!

Dear Owner,

Congratulations! Thank you for purchasing this new heater manufactured by Marley Engineered

Products. You have made a wise investment selecting the highest quality product in the heating indus-

try. Please carefully read the installation and maintenance directions shown in this manual. You should

enjoy years of efficient heating comfort with this product from Marley Engineered Products... the indus-

try’s leader in design, manufacturing, quality and service.

... The Employees of

Marley Engineered Products

Installation & Maintenance Instructions

1

NOTE: This heater has a continuous fan only feature. See

page 4 for details.

Installation of Recessed Back Box

in New Construction

1. Mounting Back Box (See Figure 1).

a. Place the back box between two 16" (406 mm)

center-to-center wall studs at the desired mounting

height but no closer than 8" (203 mm) to adjacent wall

or floor.

Note: If wall studs are spaced greater than 16” on center,

additional framing supports may be necessary.

b. Align back box such that the bottom and sides will be

flush with finished wall surface (top flange of wall box

should protrude approximately 1/2" (12.7 mm) from fin-

ished wall surface).

c. Secure the back box in position with wood screws or

nails as shown in Figure 1.

2. Power Supply Wiring (See Figure 1)

NOTE: Wire compartment volume - 119in3 (1950cm3).

a. Run a power supply cable into the knockout area in the

upper right hand corner of the back box. All wiring

must be in accordance with National and Local

Electrical Codes. Refer to Table 1 for correct wire size.

b. Remove disconnect switch bracket by loosening two

screws on the right side.

c. Install a cable clamp in the “knockout” in the top of the

back box.

d. Insert power supply cable through cable clamp, allow-

ing at least 6" (152mm) of leads to extend inside the

housing. Connect the blue lead wires of disconnect

switch to the supply wire leads using wire connectors

(see wiring diagram, pg. 3).

e. Ground the back box using the green screw located in

the inside top of the housing.

f. Secure disconnect switch bracket in place by tighten-

ing screws.

Installation of Recessed Back Box

in Existing Construction

1. Provide a wall opening 14-1/2" (362mm) wide by 18-1/2"

(470mm) high at the desired mounting height, but no

closer than 8" (203mm) from floor. (See Figure 2.)

Note: Locate so at least one side of opening is at wall stud.

2. Power Supply Wiring

NOTE: Wiring Compartment Volume - 119in3 (1950cm3).

a. Run a power supply cable into the area above the top

of the wall opening. All wiring must be in accordance

with National and Local electrical codes. Refer to Table

1 for correct wire size.

b. Remove disconnect switch bracket by loosening the

two screws on the right side.

c. Install a cable clamp in the “knockout” in the top of

back box.

d. Insert power supply cable through cable clamp, allow-

ing approximately 6" (152mm) of cable length to

remain inside the back box to facilitate connections.

3. Mounting Back Box

a. Place the back box into wall opening flush with fin-

ished wall surface on bottom and sides of box. (Top

flange of back box should protrude approximately 1/2"

or 12.7mm from finished wall surface).

b. Secure the back box in place with wood screws or

nails.

4. Wiring Disconnect Switch

a. Connect the power supply wires to the blue wires of the

disconnect switch using wire connectors (see wiring

diagram, pg. 3.)

b. Ground the back box using the green ground screw

located in the inside top of the housing.

c. Secure disconnect switch bracket in place by tighten-

ing screws.

IMPORTANT

CAUTION

WARNING

DO NOT INSTALL HEATER UPSIDE DOWN OR SIDEWAYS.

DO NOT USE HEATER WITHOUT GRILLE.

FOR WALL MOUNTING ONLY. DO NOT INSTALL HEATER

CLOSER THAN 8" (203 mm) TO THE FLOOR OR ANY ADJA-

CENT WALL SURFACE. DO NOT INSTALL CLOSER THAN

36" (915 mm) TO THE CEILING.

Fig. 1: Locating Recessed Back Box in New Construction

Back Box

Fig. 2: Locating Recessed Back Box in Existing Construction

!

!

!

2

8” (203mm) MIN

TABLE 1

MODEL # WATTS VOLTS (1Ø only) WIRE SIZE

FRA1512 1500 120 12

FRA1812 1800 120 10

FRA2024B 1500/2000 208/240

FRA2027B 1500/2000 240/277 14 AWG

FRA1527B 1500 277

FRA2020B 2000 208

FRA4024B 3000/4000 208/240 12 AWG/10 AWG

FRA4027B 3000/4000 240/277 12 AWG

FRA3027B 3000 277

FRA4020B 4000 208 10 AWG

FRA4824B 3600/4800 208/240

FRA4827B 3600/4800 240/277 10 AWG

Installation of Back Box with Optional

Surface-Mounting Frame (See Figure 3)

1. Secure back box to wall with knockouts in upper right

hand corner using screws and anchors.

2. Hang the surface-mounting frame on the back box.

Ensure that the back edge of the surface-mounting frame

is flush against the wall.

NOTE: If heater is located in a high traffic area, where it may

be subjected to vandalism or abuse, take extreme care to see

that the box is firmly attached to the wall.

3. Power Supply Wiring

NOTE: Wiring Compartment Volume - 119in3(1950cm3).

a. Run a power supply cable into the area to the upper

right corner of the mounting frame. Arrangement of

wiring to this point must be in accordance with National

and Local codes. Refer to specifications on page 2 for

proper wire size.

NOTE: If the wiring is to run through the wall, cut a hole

in the area of the top of the back box. Run the supply wire

through this hole. Then remove the “knockout” from the

top of the box and proceed to step C.

b. Remove the “knockout” on the top side of the frame.

c. Remove disconnect switch bracket by loosening the

two screws on the right side.

d. Feed the power supply cable through the frame allow-

ing 6" (152mm) of lead to remain inside the back box

(using cable clamp, connector, or other suitable

strain relief).

e. Secure the power supply cable to the back box

(using cable clamp, connector, or other suitable strain

relief) allowing 6" (152mm) of lead to remain inside the

inner housing.

f. Connect supply wires to blue wires of disconnect

switch using wiring connectors (see wiring diagram,

next column).

g. Ground the back box by connecting the supply ground

leadwire to the green ground screw located in the

inside top of the housing.

h. Secure disconnect switch bracket in place.

Installation of Heater Assembly and Grille

After back box is completely installed and no further con-

struction dirt is expected, clean debris from back box, remove

heater assembly from its carton, then refer to Figure 4 and

proceed as follows:

1. Insert the heater assembly into wall housing, placing

the four mounting holes (with key-hole slots) over the

screws in the housing. Tighten all screws securely.

2. If surface-mounting frame is used, ensure that the

frame is even with all four heater assembly tabs before

tightening screws.

3. Connect the two disconnected switch wires to the heat-

control switch (thermostat) leads using wirenuts (see

wiring diagram, next column). After connection, push

wires back into the opening.

4. Turn thermostat to the extreme counterclockwise

position.

5. Push disconnect switch into ON position.

6. Install (2) plastic covers on back box as follows: (See Fig. 4)

NOTE: Both top and bottom plastic covers are identical.

• TOP - Align the screw bosses on the back of the plastic

cover with the second hole down from the top of the

back box and attach it with the two screws provided.

• BOTTOM - Align the screw bosses on the back of the

other plastic cover with holes at the bottom of the back

box that are just above the fan deck mounting screws

and attach it with two screws provided.

7. Remount the wire compartment cover. Install the front

cover by hooking the (2) tabs on the one side then rotat-

ing the front cover into place making sure that all four tabs

are snapped onto the front cover.

8. Fit the thermostat knob onto the thermostat shaft and

push into place.

Fig. 3: Optional Surface Mounting Frame Installation

Fig. 4

MOUNT BACK BOX

TO WALL USING

REAR MOUNTING

HOLES.

HANG FRAME

ON BACK BOX. 15-5/32 "

(385mm)

19"

(482mm)

3-13/16"

(97mm)

THERMOSTAT KNOB

FRONT COVER

PLASTIC

COVER

PLASTIC COVER

POWER LEADS

BACK BOX

INNER FRAME

ASSEMBLY

RECESS WALL

HOUSING

DISCONNECT

SWITCH

THERMOSTAT

MANUAL

RESET

LIMIT

DISCONNECT

L1

L2 or N

ELEMENT

ELEMENT

F.D.

FAN MOTOR

T-STAT

L1 OFF

CYC

L2

DISCONNECT

L1

L2 or N

F.D.

L1 OFF

CYC

L2

FAN MOTOR

MANUAL

RESET

LIMIT

ELEMENT T-STAT

FAN MOTOR

MANUAL

RESET

LIMIT

T-STAT

L1 OFF

CYC

L2

DISCONNECT

L1

L2 or N

F.D.

SEC

PRI

ELEMENT

ELEMENT

1500, 1800, 4800, 4000, & 3000 WATT HEATERS

120V, 208V, 240V, OR 277V (Full wattage heaters can be converted to half

wattage by removing the red jumper wire connecting the top and bottom element

terminals.)

NOTE: Wattage conversion not applicable to FRA1512 and FRA 1812.

4800, 4000, & 3000 WATT HEATERS

347V, 600V

2000 & 1500 WATT HEATERS

208V, 240V, OR 277V

WIRING DIAGRAMS (ALL 1Ø)

3

Operation

1. Rotate the thermostat fully clockwise. This should

energize the heating elements and cause warm air to

flow from the hot air discharge at the openings in the bot-

tom of the grille.

NOTE: This heater is provided with a fan delay control that

allows the heating element to warm prior to the fan coming

on. This delay will also allow the fan to operate for a short

period after the heating element has been turned off to

remove the residual heat from the heater.

2. After the operation check, rotate the thermostat to

the desired position to obtain room comfort.

3. For continuous fan only operation (elements will not be

energized) rotate thermostat knob where indicator dot on

knob is aligned with “FAN”.

NOTE: For best results, the heater should be left “ON”

constantly during the heating season because the thermo-

stat, when properly set, will maintain the desired tempera-

ture.

Important Information

Maintenance

TO RESET MANUAL RESET LIMIT

Your heater is equipped with a manual reset safety thermal

limit control that will automatically turn the heater off to pre-

vent a fire if the heater overheats. This control is located on

the fan panel assembly between the element and fan blade

and marked “reset”. The red reset button can be seen

through the front grille when the heater is installed. To reset,

allow the heater to cool, then push the red button that is vis-

ible through the hole in the fan panel. The heater should

immediately return to normal operation.

Once each year the heater should be cleaned to remove dust

and other foreign material which has collected during the

heating season. This is a simple operation when performed

as follows:

1. Turn off the electric power at main line switch (or remove

all fuses) to disconnect electric power from the heater.

THIS IS IMPORTANT.

2. Remove thermostat knob.

3. Remove front cover by depressing plastic snap tabs with

a flat bladed screw driver as shown in Figure 5. Release

both tabs on one side then rotate the front cover off of the

fan deck.

4. With a vacuum cleaner nozzle or dust cloth, remove dust

and other foreign material.

5. After cleaning, turn disconnect switch to ON position and

reinstall the grille.

6. Turn on the main line switch (or replace fuses) to restore

power to the heater. The heater is now ready for another

season of operation.

CAUTION

OPERATION OF THE MANUAL RESET SAFETY THERMAL LIMIT

CONTROL IS AN INDICATION THAT THE HEATER HAS BEEN

SUBJECTED TO SOME ABNORMAL CONDITION. IT IS RECOM-

MENDED THAT THE HEATER BE CHECKED BY A REPUTABLE

ELECTRICIAN OR REPAIR SERVICE TO ENSURE THE HEATER

HAS NOT BEEN DAMAGED.

CAUTION

DO NOT USE WATER OR DAMP CLOTH FOR CLEANING AND

DO NOT DISTURB THE HEATING ELEMENT.

MODEL NO. FRA4020B DATE CODE: 0106

FAN FORCED WALL HEATER

APPAREIL DE CHAUFFAGE MURAL À AIR PLUSÉ

VOLTS AC 60HZ WATTS PHASE

HI LO

208 4000 1

MUST BE USED WITH AWH-BB BACK BOX

DO NOT OPERATE WITHOUT FRONT COVER IN PLACE.

DOIT ÉTRE UTILISÉ AVEC BOÎTIER ARRIÈRE AWH-BB

NE PAS UTILISER SI LE COUVERCLE AVANT N’EST PAS EN PLACE.

MARLEY ENGINEERED PRODUCTS

BENNETTSVILLE, SC 29512

774G LISTED

ROOM HEATER

!

!

4

Fig. 5

Replacement Parts

Key

No. Description Part Number

– Parts Bag 1205-2020-000

1 Front Cover 1402-2241-001

2 Plastic Cover 1402-2120-000

3 Element: 120V/1500W 302012828

120V/1800W 302012827

208V/2000W 302015801

208V/4000W 302012807

208V/4800W 1802-2075-801

240V/2000W 302015802

240V/4000W 302012808

240V/4800W 302012810

277V/1500W 302015806

277V/2000W 302015803

277V/4000W 302012809

277V/4800W 302012811

4 Manual Reset 4520-2027-000

5 Fan Delay 410074000

6 Fan Blade 490030103

7 Motor: 120V 3900-2010-003

208V 3900-2010-000

240V 3900-2010-001

277V 3900-2010-001

8 Thermostat 5813-2059-000

9 Disconnect 410170001

Disconnect (4820B) 5216-2020-000

3

4

5

6

7

89

1

2

2

LIMITED WARRANTY

All products manufactured by Marley Engineered Products are warranted against defects in workmanship and materials for one year from date of installation,

except heating elements which are warranted against defects in workmanship and materials for five years from date of installation. This warranty does not apply

to damage from accident, misuse, or alteration; nor where the connected voltage is more than 5% above the nameplate voltage; nor to equipment improperly

installed or wired or maintained in violation of the product’s installation instructions. All claims for warranty work must be accompanied by proof of the date of instal-

lation.

The customer shall be responsible for all costs incurred in the removal or reinstallation of products, including labor costs, and shipping costs incurred to return

products to Marley Engineered Products Service Center. Within the limitations of this warranty, inoperative units should be returned to the nearest Marley autho-

rized service center or the Marley Engineered Products Center, and we will repair or replace, at our option, at no charge to you with return freight paid by Marley.

It is agreed that such repair or replacement is the exclusive remedy available from Marley Engineered Products.

THE ABOVE WARRANTIES ARE IN LIEU OF ALL OTHER WARRANTIES EXPRESSED OR IMPLIED. AND ALL IMPLIED WARRANTIES OF MERCHANTABIL-

ITY AND FITNESS FOR A PARTICULAR PURPOSE WHICH EXCEED THE AFORESAID EXPRESSED WARRANTIES ARE HEREBY DISCLAIMED AND

EXCLUDED FROM THIS AGREEMENT. MARLEY ENGINEERED PRODUCTS SHALL NOT BE LIABLE FOR CONSEQUENTIAL DAMAGES ARISING WITH

RESPECT TO THE PRODUCT, WHETHER BASED UPON NEGLIGENCE, TORT, STRICT LIABILITY, OR CONTRACT.

Some states do allow the exclusion or limitation of incidental or consequential damages, so the above exclusion or 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.

For the address of your nearest authorized service center, contact Marley Engineered Products in Bennettsville, SC, at 1-800-642-4328. Merchandise returned to

the factory must be accompanied by a return authorization and service identification tag, both available from Marley Engineered Products. When requesting return

authorization, include all catalog numbers shown on the products.

02/06

Part No. 5200-2301-001

PPD 058

HOW TO OBTAIN WARRANTY SERVICE AND

WARRANTY PARTS PLUS GENERAL INFORMATION

1. Warranty Service or Parts 1-800-642-4328

2. Purchase Replacement Parts 1-800-654-3545

3. General Product Information www.marleymep.com

Note: When obtaining service always have the following:

1. Model number of the product

2. Date of manufacture

3. Part number or description

470 Beauty Spot Rd. East

Bennettsville, SC 29512 USA