Marley K404A Installation and operating instructions

“K” Series

(Model A)

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 consid-

erable time and money later. Observe the following proce-

dures and cut your installation time to a minimum.

To reduce risk of fire or electric shock:

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 used or 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 storage

areas.

WAR I G

SAVE THESE I STRUCTIO S

(400mm)

15-3/4"

(485mm)

19-1/8"

(35mm)

1-3/8"

(95mm)

3-3/4"

(463mm)

18-1/4"

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

en oy 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

F LE #E21609

Installation of Recessed Back Box

in ew Construction

1. Mounting Back Box (See Figure 1).

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

center-to-center wall studs at the desired mounting

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

or floor.

ote: f 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 back box

should protrude approximately 1/2" (13mm) 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).

OTE: 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. Refer to

Figure 1.

b. nstall a cable clamp in the “knockout” in the top of

the back box.

c. nsert power supply cable through cable clamp, allow-

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

back box.

d. Ground the back box by connecting the supply ground

leadwire to the green ground screw located in the

inside top of the back box.

Installation of Recessed

Back box in Exisiting Construction

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

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

closer than 8" (203mm) to any adjacent wall or floor and

36” (915mm) to ceiling. (See Figure 2.)

OTE: Locate so at least one side of the opening is at stud.

2. Power Supply Wiring

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

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

of the wall opening.

b. nstall a cable clamp in the knockout in the top of

back box.

c. nsert power supply cable through cable clamp, allow-

ing at least 6" (152mm) of cable length to remain

inside the back box to facilitate connections.

d. Ground the back box by connecting the supply ground

leadwire to the green ground screw located in the

inside top of the back box.

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"

(13mm) from finished wall surface).

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

OTE: For correct wire sizing, please refer to the

ational Electrical Code, Section 310. Only use copper

wire rated at least 75° C Do not use alluminum wire with

this unit.

IMPORTA T

CAUTIO

WAR I G

DO OT NSTALL HEATER UPS DE DOWN OR S DE-

WAYS.

DO OT USE HEATER W THOUT GR LLE.

FOR WALL MOUNT NG ONLY. DO OT NSTALL HEATER

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

ADJACENT WALL SURFACE. DO OT NSTALL CLOSER

THAN 36" (915 mm) TO THE CE L NG.

Fig. 1: Locating Recessed Back Box in New Construction

Fig. 2: Locating Recessed Back Box in Existing Construction

GROUND

SCREW

BACK BOX

CABLE

CLAMP

8” M N.

(203mm)

8” M N.

(203mm) 8” M N.

(203mm)

18-1/2” M N.

(470mm)

MN. 36” (915mm)

to ceiling

14-1/2” M N.

(362mm)

NA L OR SCREW

(2 EACH S DE)

GROUND SCREW

CABLE CLAMP

NA L OR SCREW

(2 EACH S DE)

8” M N.

(203mm)

POWER SUPPLY CABLE

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.

OTE: f heater is located in a high traffic area where it may

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

that the back box is firmly attached to the wall.

3. Power Supply Wiring

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

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

right corner of the mounting frame.

OTE: f 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. Feed the power supply cable through the frame allow-

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

d. Secure the power supply cable to the back box

(using cable clamps, connector, or other suitable strain

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

back box.

e. Ground the back box by connecting the supply ground

leadwire to the green ground screw located in the

inside top of the back box.

Installation of Heater Assembly and Grille

After back box is competely 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. nsert the heater assembly into back box, placing

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

screws in the back box. Tighten all screws securely.

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

frame is even with all four heater assembly tabs before

tightening screws.

3. Connect the power lead wires (field wiring) to the lead

wires from the heater assembly. See wiring diagram

in next column.

4. Turn thermostat to the extreme counterclockwise

position.

5. Mount the grille using four (4) long screws provided.

The screws thread into holes located in the side

flanges of the back box.

6. Push thermostat knob onto thermostat shaft.

Fig. 3: Surface Mounting Installation

Fig. 4

HANG FRAME

ON BACK BOX

15-5/32"

(385mm)

19"

(482mm)

3-13/16"

(97mm)

MOUNT BACK BOX TO

WALL US NG REAR

MOUNT NG HOLES.

POWER

LEADS

RECESS BACK

BOX

HEATER

ASSEMBLY

THERMOSTAT

KNOB

GR LLE

1500, 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 ter-

minals.)

OTE: Conversion not applicable on K151.

4800, 4000, & 3000 WATT HEATERS

347V, 600V

2000 & 1500 WATT HEATERS

208V, 240V, OR 277V

WIRI G DIAGRAMS (S NGLE PHASE)

Element

Red

Fan Motor

TʼStat

GND

F.D.

Manual

Reset

Limit

Manual

Reset

Limit

Manual

Reset

Limit

Field

Wiring

Fan Motor

TʼStat

Field

Wiring

Fan Motor

CAUTIO

To assure proper operation of fan, thermostat must not cycle fan

on and off. Follow wiring diagram exactly.

Operation

1. Turn power to heater on at main switch panel. Rotate the

thermostat knob fully clockwise. This should energize the

heating elements and the fan, causing air to flow from the

air discharge at the openings in the bottom of the grille.

2. After the discharge air has become warm, rotate the

thermostat knob to the desired postion to obtain room

comfort.

OTE: For best results, the heater should be left ON con-

stantly during the heating season since the thermostat, when

properly set, will maintain the desired temperature.

IMPORTA T I FORMATIO

Maintenance

TO RESET MANUAL RESET L M T

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.

The heater should be cleaned annually to remove dust and

other foreign material which has collected during the heating

season. This is a simple operation when performed as fol-

lows:

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

remove all fuses) to disconnect electric power from the

heater. TH S S MPORTANT.

2. Remove the grille (Fig. 4).

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

dust and other foreign material.

4. After cleaning reinstall the grille.

5. 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.

MODEL NO. K404A DATE CODE: 0595

FAN FORCED WALL HEATER

APPARE L DE CHAUFFAGE MURAL À A R PLUSÉ

VOLTS AC 60HZ WATTS PHASE

240/208 4000/3000 1

MUST BE USED W TH BACK BOX

DO NOT OPERATE W THOUT FRONT COVER N

PLACE.

DO T ÉTRE UT L SÉ AVEC BOÎT ER ARR ÈRE AWH-BB

NE PAS UT L SER S LE COUVERCLE AVANT NʼEST PAS EN PLACE.

MARLEY ENG NEERED PRODUCTS

BENNETTSV LLE, SC 29512 4104-2093-028

774G L STED

ROOM HEATER

CAUTIO

OPERAT ON OF THE MANUAL RESET SAFETY THERMAL L M T

CONTROL S AN ND CAT ON THAT THE HEATER HAS BEEN

SUBJECTED TO SOME ABNORMAL COND T ON. T S RECOM-

MENDED THAT THE HEATER BE CHECKED BY A REPUTABLE

ELECTR C AN OR REPA R SERV CE TO ENSURE THE HEATER

HAS NOT BEEN DAMAGED.

DO OT USE WATER OR DAMP CLOTH FOR CLEAN NG

AND DO OT D STURB THE HEAT NG ELEMENT.

EXAMPLE

LIMITED WARRA TY

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 volt-

age; nor to equipment improperly installed or wired or maintained in violation of the productʼs installation instructions. All claims for warranty work must

be accompanied by proof of the date of installation.

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

THE ABOVE WARRANT ES ARE N L EU OF ALL OTHER WARRANT ES EXPRESSED OR MPL ED. AND ALL MPL ED WARRANT ES OF MER-

CHANTAB L TY AND F TNESS FOR A PART CULAR PURPOSE WH CH EXCEED THE AFORESA D EXPRESSED WARRANT ES ARE HEREBY

D SCLA MED AND EXCLUDED FROM TH S AGREEMENT. MARLEY ENG NEERED PRODUCTS SHALL NOT BE L ABLE FOR CONSEQUENT AL

DAMAGES AR S NG W TH RESPECT TO THE PRODUCT, WHETHER BASED UPON NEGL GENCE, TORT, STR CT L AB L TY, 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.

04/10

Part No. 5200-2267-007

ECR 38696

HOW TO OBTAI WARRA TY SERVICE A D

WARRA TY PARTS PLUS GE ERAL I FORMATIO

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

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

3. General Product nformation www.marleymep.com

ote: When obtaining service always have the following:

1. Model number of the product

2. Date of manufacture

3. Part number or description

Replacement Parts

Key

No. Description Part Number

1 Fro t Cover 1402-2239-000

2 Motor: 208V 3900-2010-000

240V 3900-2010-000

120V 3900-2010-003

3 Ma ual Limit 4520-2013-000

4 Fa Delay 410074000

5 Thermostat 5813-2027-000

6 Eleme t: 208V/2000W 302015001

240V/2000W 302015002

277V/2000W 302015003

277V/3000W 302012006

208V/4000W 302012007

240V/4000W 302012008

240V/3000W 302012009

240V/4800W 302012010

277V/4800W 302012011

120V/1500W 302012827

7 Fa Blade 490030103

8 Parts Bag 1205-2070-001

470 Beauty Spot Rd. East

Bennettsville, SC 29512 USA

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