Marley L series Installation and operating instructions

L Series
Hand Carry Portable Radiant Heaters
Dear Owner,
Congratulations! Thank you for purchasing this new heater by Marley Engineered Products. You have made a wise investment select-
ing 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
Installation & Maintenance Instructions
SAVE THESE INSTRUCTIONS
Read Carefully - This Instruction Sheet Contains Vital
Information For The Proper Assembly, Set-Up And
Efficient peration f The Heater. Carefully Read The Manual
Before Assembly, peration, r Cleaning f The Heater. Failure
To Adhere To The Instructions Could Result In Fire, Electrical
Shock, Property Damage, Serious Personal Injury, r Death.
Save These Instructions And Review Frequently For Continuing
Safe peration And Instructing Future Users.
1. To prevent a possible 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 electrical shock.
3. Verify the power supply voltage coming to the heater
matches the ratings printed on the heater nameplate before
energizing.
4. This heater is N T suitable for use in hazardous locations as
described by the National Fire Protection Association (NFPA).
This heater has hot and arcing or sparking parts inside. Do
N T use in areas where gasoline, paint or other flammable
liquids are used or stored.
5. This heater is intended to provide temporary, supplemental
localized heat only in non-residential locations. The heater is
intended for use on the floor only. Do N T place heater on
surface where is could fall or tip over.
6. Heater element operates at very hot temperatures. Do N T
place heater near combustibles and D N T place
combustibles in the radiation path in front of the heater.
Keep all combustibles at least five (5) feet from front of
heater.
7. Heater is designed and intended for use as illustrated in this
instruction sheet only. Do not position or use heater in any
other manner.
8. This heater is hot when in use. To avoid burns, do N T let
bare skin touch hot surfaces. Keep combustible materials,
such as furniture and papers at least 5 feet from the front of
the heater.
9. D N T LEAVE HEATER UNATTENDED WHILE IN
PERATI N.
10.Always disconnect heater when not in use.
11. Do N T use outdoors in areas subject to wind.
12.Connect to properly grounded outlets or building ground.
13.This heater has hot surfaces. Do N T use it in areas where
gasoline, paint or flammable liquids are used or stored.
14.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.
15.In order to prevent equipment damage, protect with a
ground fault device such as Marley Engineered Products
WMGF240 for 240V heaters and WMGF480 for 480V
heaters.
WARNING
!
All manuals and user guides at all-guides.com
all-guides.com

WIRING
1. Use heater only at the voltage specified on the nameplate.
2. The heater connection points are located in the gasketed
terminal enclosure. To remove cover, remove screw(s) on the
cover. Remove the cover to expose wiring connection points.
3. A green ground terminal is provided in the bottom of the
enclosure. The ground wire should be connected before other
connections are made.
4. Use type "S " or equal cord. Refer to Table 1 for proper
cord gage and number of conductors.
OPTIONAL ACCESSORIES
Marley Engineered Products L series radiant heaters can be
field modified by adding optional kits.
Cord Kits
Cord kits consist of 25 feet of 90°C cable and a right angle
cord fitting which can connect directly to the heater terminal box
or disconnect switch (if used). See instruction sheet
5200-2647-### for details
Plugs
Single and three phase with ground. Available in nonlocking
and locking. See Table 1.
Ground Fault Kits
WMGF240 series kit mounts to wall that de-energizes the
heater prior to element failure. See instruction sheet
5200-2652-###.
ELECRIC SH CK 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.
All electrical wiring must be done by a qualified person in accor-
dance with National Electrical Code (NEC) and meet all state
and local regulations.
a
WARNING
2
Table 1 - Hand Carry Portable- L Series
Cord Locking Non-Locking
Model Wattage Volts Amps Guage Cord Set Plug Set Plug Set
L1511B 1500 120 12.5 See Note See Note See Note
Note: This hand carry model includes cord and standard 3-prong gounded plug.
L2081B 208 9.6 14/3 CS25143 LPS25124 NPS25650
L2021B 240 8.3 14/3 CS25143 LPS25124 NPS25650
L2071B 2000 277 7.2 14/3 CS25143 LPS25124 N/A
L2041B 480 4.2 14/3 CS25143 LPS25104 N/A
L2061B 600 3.3 14/3 CS25143 LPS25083 N/A
L4581B 208 21.6 12/3 CS25123 LPS25103 NPS25650
L4521B 240 18.8 12/3 CS25123 LPS25124 NPS25650
L4571B 4500 277 15.9 14/3 CS25143 LPS25124 N/A
L4541B 480 9.4 14/3 CS25143 LPS25104 N/A
L4561B 600 7.5 14/3 CS25143 LPS25083 N/A
!
All manuals and user guides at all-guides.com

3
MAINTENANCE
The heater requires no special maintenance other than
occasional cleaning to prevent excess accumulation of dust and
lint on surfaces. It is important for the reflectors to be kept clean
to obtain the maximum radiant output. If used as a movable unit,
the cart and cord should be checked periodically to make sure the
hardware remains tight and cart and cord are not damaged. Do
not continue to use the heater if damaged.
Element Replacement (Contact Factory for Part Number.)
1. Remove Terminal Box Cover.
2. Disconnect lead wires from heater terminals.
3. Remove safety grilles.
4. Remove retainer screw located on the reflector at the terminal
end.
5. 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.
6. Remove wires and jumper straps as required to replace the
failed heating element(s).
7. Remove bulkhead fitting nuts and washers.
8. Remove failed element and replace with a new element.
Replace only with Marley Engineered Products elements.
Use of other elements will cause excess temperatures
inside terminal box.
9. Place gasket on the bulkhead fitting and insert terminals and
fittings into the element holes in the terminal box.
10.Place washers and nuts on bulkhead fittings and tighten.
11. Replace wiring and jumper straps.
12.Reassemble by following the reverse procedures
(steps 5 through 1)
ELECRIC SH CK HAZARD. Disconnect all power before
servicing or replacing heating elements.
a
WARNING
!
11-3/4"
(298.45mm)
11-3/8"
(288.925mm)
28-1/2"
(723.9mm)
1.5 & 2.0 KW 4.5 KW
11-3/4"
(298.45mm) 11-3/8"
(288.925mm)
49"
(1244.6mm)
DIMENSIONS
All manuals and user guides at all-guides.com

4
12-03
Part No. 5200-2651-000
PPD 057A
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 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 AB VE WARRANTIES ARE IN LIEU F ALL THER WARRANTIES EXPRESSED R IMPLIED, AND ALL
IMPLIED WARRANTIES F MERCHANTABILITY AND FITNESS F R A PARTICULAR PURP SE WHICH EXCEED
THE AF RESAID EXPRESSED WARRANTIES ARE HEREBY DISCLAIMED AND EXCLUDED FR M THIS
AGREEMENT. MARLEY ENGINEERED PR DUCTS SHALL N T BE LIABLE F R C NSEQUENTIAL DAMAGES
ARISING WITH RESPECT T THE PR DUCT, WHETHER BASED UP N NEGLIGENCE, T RT, STRICT LIABILITY,
R C NTRACT.
Some states do not 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.
470 Beauty Spot Rd. East
Bennettsville, SC 29512 USA
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
All manuals and user guides at all-guides.com