Marley N1011B Istruzioni per l'installazione e il funzionamento

N Series

Overhead Infrared

Heaters

Dear Owner,

Congratulations! Thank you for purchasing this new heater by Marley Engineered Products. You have made a wise invest-

ment selecting the highest quality product in the heating industry. Please carefully read the installation and maintenance

instructions shown in this manual. You should enjoy years of efficient heating comfort with this product from Marley

Engineered Products... the industry’s leader in design, manufacturing, quality and service.

... The Employees of

Marley Engineered Products

Read Carefully - This instruction sheet contains vital infor-

mation for the proper installation, use and efficient opera-

tion of the heater. Carefully read the manual before installa-

tion, operation, or cleaning of the heater. Failure to adhere

to the instructions could result in fire, electric shock, death,

serious personal injury or property damage. Save these

instructions and review fre uently for continuing safe opera-

tion and instructing future users.

RISK OF FIRE, ELECTRICAL SHOCK OR FALLING:

1. To prevent electrical shock, disconnect all power com-

ing to heater at main service panel before wiring or ser-

vicing.

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

Local Electrical Codes and the heater must be ground-

ed as a precaution against possible electric shock.

3. Verify the power supply voltage coming to heater

matches the ratings printed on the heater nameplate

before energizing.

4. This heater is NOT suitable for use in hazardous loca-

tions as described by the National Fire Protection

Association (NFPA). This heater has hot and arcing or

sparking parts inside. DO NOT use in areas where

gasoline, paint or other flammable li uids or stored.

5. Do not use this heater in areas where corrosive agents

such as Ammonia • Carbon tetrachloride • Sulphuric acid •

Muriatic Acid • Ethylene Dichloride (Mastics-Glues-Adhesives)

• Chlorine • Chlorides • Fluorides • Perchlorethylene •

Trichlorethylene • Hydrochloric Acid • Halogenated

Hydrocarbons • Industrial Caustics.

6. This heater is intended for ceiling installation ONLY. The

following clearances MUST be maintained:

a) Top of heater to ceiling - 3 in (76 mm).

b) Bottom of heater to floor - 10 ft (3048 mm).

c) Side of heater to wall - 12 in (305 mm).

d) End of heater to wall - 12 in (305 mm).

e) Side of heater to side of adjacent heater - 36 in

(914 mm).

f) End of heater to end of adjacent heater - 36 in (914

mm).

7. Heater MUST be securely fastened to the building

structure to prevent it from falling.

8. DO NOT stack or store combustible materials in the

radiation path under the heater. At least 5 feet (1524

mm) clearance MUST be maintained between bottom

of heater and combustibles stored.

9. Do NOT use as a residential or household heater.

Installation & Maintenance Instructions

SAVE THESE INSTRUCTIONS

WARNING

SPECIFICATIONS

Model Dimensions Wire Ga.

Number Volts Watts Amps BTU A Length B Width D Depth (Min.)

N1011B 120 8.3

N1081B 208 4.8 27.125” 8.375” 3.5”

N1021B 240 1000 4.2 3412 (689 mm) (212 mm) (88.9) 14 Ga.

N1511B 120 12.5

N1581B 208 7.2 35.625” 8.375” 3.5”

N1521B 240 1500 6.3 5118 (905 mm) (212 mm) (88.9) 14 Ga.

N1571B 277 5.4

N1531B 347 4.3

N2001B 208 9.6

N2021B 240 2000 8.3 6824 46.625” 8.375” 3.5” 14 Ga.

N2071B 277 7.2 (1184 mm) (212 mm) (88.9)

N2031B 347 5.8

N2501B 208 12.0

N2521B 240 2500 10.4 8530 53.375” 8.375” 3.5” 14 Ga.

N2571B 277 9.0 (1356 mm) (212 mm) (88.9)

N2531B 347 7.2

INSTALLATION

The Marley Engineered Products N

Series radiant heater is shipped fully

assembled. The heater can be hung from

the ceiling by chains or rigid angle brackets

attached to the heater

brackets located on the back of the heater.

Hanging chain kits are available for these

heaters that will allow for installations to 6

feet from the ceiling.) (Model MHK)

Minimum spacings:

Ceiling to top of heater is 3 in.

Wall to sides of heater is 12 in.

Floor to bottom of heater is 10 feet.

Installer should consult state and local

codes and meet any applicable

re uirements regarding the installation.

CAUTION

Ø1.125

SERVICE

ENTRANCE

OPENING

4X1/4" Ø MOUNTING

HOLE FOR "S" HOOKS

1.000±.062

(3.500)

90˚

(8.375)

(4.500)

(10.000) Ø.475

VIEW SHOWN WITH

COVER REMOVED

("B")

("A")

Figure 1

TOP VIEW

Heater

Wall

12" (304.8mm) Min.

SIDE VIEW

Wall

Floor

Ceiling

Chain

3" (76.2mm) Min.

10' (3048mm) Min.

Figure 2

MAINTENANCE

The reflectors should be kept clean to obtain the maximum

radiant output.

Element Replacement

1. Remove Terminal Box Cover.

2. Disconnect lead wires from heater terminals and disengage

box from conduit /cable fitting.

3. Remove safety grills (if installed).

4. Loosen (2) 3/8” nuts from the terminal box bracket located on

the back of the heater and slide the entire heating element

assembly out of the reflector assembly.

5. Remove bulkhead fitting nut and washers.

6. Remove failed element and replace with a new element.

7. Place gasket on the bulkhead fitting and insert terminals and

fitting into the element hole in the terminal box.

8. Place washer and nut on the bulkhead fitting and tighten.

9. Reassemble by following the reverse procedures (steps 4

through 1)

WIRING

1. Use heater only at the voltage specified on the nameplate.

2. Branch circuit wire for connection to heater must be at least

90°C wire. Use copper conductors only.

3. The heater connection points are located in the gasketed

terminal enclosure. To remove cover, remove 4 screws on

the cover. Remove the cover to expose wiring connection

points.

4. A green ground terminal is provided in the bottom of the

enclosure. The ground wire should be connected before

other connections are made.

5. Refer to Table 1 for proper entrance wiring size.

6. Heater can be wired with rigid or flexible conduit.

ELECTRIC SHOCK HAZARD. Disconnect all power before

installing or servicing heater. Failure to do so could result in

personal injury or property damage. Heater must be

effectively grounded in accordance with the National Electrical

Code, NFPA 70.

WARNING

All electrical wiring must be done by a ualified person in

accordance with National Electrical Code (NEC) and meet all

state and local regulations.

WARNING

Grill Kit Selection Guide

Model Volts Watts Optional Grill Kit

N1011B 120 1000

N1081B 208 1000 NWG01

N1021B 240 1000

N1511B 120 1500

N1581B 208 1500

N1521B 240 1500 NWG105

N1571B 277 1500

N1531B 347 1500

N2001B 208 2000

N2021B 240 2000 NWG200

N2071B 277 2000

N2031B 347 2000

N2501B 208 2500

N2521B 240 2500 NWG250

N2571B 277 2500

N2531B 347 2500

ELECTRIC SHOCK HAZARD. Disconnect all power before

servicing or replacing heating elements.

WARNING

Replacement Parts

Model Volts Watts Element

N1011B 120 1000 322-074905-143

N1081B 208 1000 322-074905-144

N1021B 240 1000 322-074905-145

N1511B 120 1500 322-074905-148

N1581B 208 1500 322-074905-149

N1521B 240 1500 322-074905-150

N1571B 277 1500 322-074905-151

N1531B 347 1500 322-074905-152

N2001B 208 2000 322-074905-153

N2021B 240 2000 322-074905-154

N2071B 277 2000 322-074905-155

N2031B 347 2000 322-074905-156

N2501B 208 2500 322-074905-157

N2521B 240 2500 322-074905-158

N2571B 277 2500 322-074905-159

N2531B 347 2500 322-074905-160

Hanging Kit for All Models: MHK

HOW TO ORDER REPAIR PARTS

In order to obtain any needed repair or replacement parts,

warranty service or technical information, please contact

Marley Engineered Products Service Center toll-free by calling

1-800-642-HEAT.

When ordering repair parts, always give the information

listed as follows:

1. The Part Number

2. The Model Number

3. The Part Description

4. Date of Manufacture

LIMITED WARRANTY

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

lation, except heating elements which are warranted against defects in workmanship and materials for five years from date of installation. This war-

ranty 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 e uipment 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 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 Service 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 MER-

CHANTABILITY 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 not allow the exclusion or limitation of incidental or conse uential 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 re uesting return authorization, include all catalog numbers shown on the products.

11/03

Part No. 5200-2649-000

PPD 057

470 Beauty Spot Rd. East

Bennettsville, SC 29512 USA

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