Marley VRC4420SG, VRC4440DTG, VRC4440DWG Instructions Manual
VRC44 Series
Commercial Radiant Heaters
Meets ANSI/UL 2021
nd CSA C22.2 No. 46
a
Installation, Operation & Maintenance Instructions
Table 1. Specifications
MODEL VOLTS PHASE WATTS AMPS BTUHR
VRC4420SG 240 1 2000 8.4 6824
VRC4440DWG 240 1 4000 16.7 13648
VRC4440DTG 240 1 4000 16.7 13648
IMPORTANT INSTRUCTIONS
Read Carefully – This instruction sheet contains vital information for the proper installation, use, and efficient operation
of the heater described. Carefully read this manual before installation, cleaning, or operation of the heater. Failure to
adhere to the instructions could result in fire, electrical shock, death, serious personal injury, or property damage. Save
these instructions and review frequently for continuing safe operation and instructing future users.
WHEN USING ELECTRICAL APPLIANCES, BASIC PRECAUTIONS SHOULD ALWAYS BE FOLLOWED TO REDUCE THE
RISK OF FIRE, ELECTRIC SHOCK, AND INJURY TO PERSONS, INCLUDING THE FOLLOWING:
1. Read all instructions before installing or using this heater.
2. All wiring must comply with the National Electrical Code
(NEC) in the USA, Canadian Electrical Code (CEC) in
Canada and all applicable local codes and the heater must
be grounded..
3. This heater is hot when in use. To avoid burns, do not let
bare skin touch hot surfaces. Keep combustible materials,
such as furniture, pillows, bedding, papers, clothes, etc. and
curtains at least 7 ft. (2.1 M) from the front of the heater.
4. Extreme caution is necessary when any heater is used by or
near children or invalids and whenever the heater is left
operating and unattended.
SAVE THESE INSTRUCTIONS
PPD 48648 11/14 5200-11225-000
5. This heater is IPX5 Rated for use in outdoor areas always
disconnect power to heater before spraying with water.
7. Do not insert or allow foreign objects to enter heater as this
may cause an electric shock, fire, or damage the heater.
8. To prevent a fire, use care to never block heater and maintain required clearances. See Fig. 2.
9. A heater has hot and arcing or sparking parts inside. Do not
use in areas where gasoline, paint, or flammable vapors or
liquids are used or stored.
10. 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. Do not modify this heater
in any way.
11. Do not use as a residential or household heater.
INSTALLATION
45°
WALL
Maximum Tilt
(Recommended)
H
e
ate
r
Ceiling
4°
WALL
Minimum Tilt
Ceiling
He
at
e
r
INSTRUCTIONS
1. Carefully open the carton containing your heater and check
for damage. If you find any damage, notify your carrier as
freight damage is not covered by the manufacturer’s warranty.
File damage claim directly with carrier.
2. Avoid touching the bulb as oils from your hand will cause a
premature failure of the bulb.
Should you accidentially touch the bulb, clean it with a
soft cloth and alcohol.
THIS HEATER OPERATES AT HIGH TEMPERATURES AND
WILL DAMAGE MATERIALS (SUCH AS VINYL SIDING, PLASTICS OR FABRICS) IF THESE TYPE MATERIALS ARE
PLACED TO CLOSE TO HEATER OR IF HEATER IS NOT
INSTALLED PER THESE INSTRUCTIONS. REFER TO FIGS 2
AND 3 FOR CLEARANCE AND MOUNTING INSTRUCTIONS.
3. This heater is intended for wall mounting only using wall
bracket provided with heater - See Fig. 1. See Fig. 2 for
Minimum Mounting Clearances and Fig. 3 for mounting
instructions..
4. Heater must be installed in horizontal position only and parallel to mounting wall. Do not tilt heater from side to side as
this could cause overheating of adjacent wall or other
objects. (as shown).
12"
(305 mm)
6"
3
914 mm)
(
Model VCR4420SGA -
'3" (2.5 M)
8
odels VCR444DWGA
M
and VCR444DTGA 9'10" (3 M)
Figure 2 - Minimum Mounting Clearances
6"
3
(914 mm)
Bracket Permanently
Attached to Heater
Bracket Permanently
Attached to wall
Figure 1A - Mounting for single bulb model
Figure 1B - Mounting for two bulb models
NOTE: this is angular wall bracket mounting
Wall Bracket Installed
Onto heater - Ready to
Mount to Wall
Factory installed
bracket with stop
bolt - do not
remove or adjust.
Figure 3 - Mounting Angles (Min and Max)
5. Heater must be securely mounted to building structure to
assure it will not fall.
6. Heater is IPX5 Rated for outdoor use.
7. Heater bracket will allow the heater mounting angle to be
adjusted from approximately 4°- 45 ° from vertical. The optimum angle is 45 ° - see Fig. 3
8. Do not locate heater directly below an outlet.
Safety Note: VRC4440DWG and VRC4440DTG models are factory assembled with the heater bracket attached to the heater.
This bracket has a stop bolt installed to provide for the correct
mounting angle. Do not remove or adjust this bolt. To do could
allow the heater to be tilted incorrectly and cause a fire.
WIRING
INSTRUCTIONS
Model VRC4420SG is provided with a flexible power cord for
hard wiring into an approved field wiring box. Models
VRC4440DWG and VRC4440DTG are is provided with a field
wiring compartment for hard wire connection to branch circuit at
the heater. All field wiring coming to heater must be rated 90 °C
min.
Note: Installer must determine how the heater will be controlled
(ON-OFF) and provide branch circuit equipment as needed.
Care must be given if automatic controls such as timers or
programmable
2
controllers are used to make sure the heaters are not blocked
and materials are not stored within 7 ft. (2.1 M) distance in front
of heater. It is recommended that these heaters only be used in
attended areas.
Model VRC4420SG (single element):
This model is provided with a section of weatherproof flexible
power cable to allow for ease in wiring. Installer must bring
branch circuit wiring to area near heater location and provide an
approved junction box for making connections. Note: Do not
install heater directly below a junction box.
Warning: To prevent a possible electric shock hazard, make sure
all power coming to heater is OFF at main disconnect before
wiring.
1. Route heater cable to junction box and cut excess cable to
allow approximately 6 inches of cable inside box for wiring
connections.
2. Install appropriate cable clamp/strain relief to cable and
secure into junction box.
3. After removing the outer jacket, strip approximately ½” of
insulation from each wire to assure only the copper wire is
within connectors and make all connections using the appropriate sized listed connectors. Connect the green colored
appropriate conduit. Wiring coming to heater must be rated at
least 90 °C for all connections inside heater junction box. Use
copper wire only.
Warning: To prevent a possible electric shock hazard, make sure
all power coming to heater is OFF at main disconnect before
1. Bring field wiring to heater and install appropriate conduit and
fittings in accordance with the NEC (USA) and CEC
(Canada). Allow 6 inches of wire inside junction box for connections.
2. Connect the earth ground to center terminal marked with
Ground mark making sure connection is tight.
3. Connect the two remaining power wires to the L1 and L2 terminals on terminal block making sure connections are tight to
avoid overheating. – See Wiring diagram Fig.4B.
4. Replace wiring box cover and secure using screws provided.
INITIAL CHECK OUT
1. After all wiring has been completed, energize the heater circuit by turning on the breaker or disconnect switch provided.
Heater should immediately come on.
2. Allow heater to operate for at least 10 minutes to verify all
wiring is correct.
3. Disconnect power.
ield Supplied for VRC4420SG
F
Figure 4A - Wiring Diagram (1 element model shown)
wire from heater to the earth ground wire. Connect the
remaining two heater wires to the two power wires. To avoid
overheating, make sure all connections are tight. See wiring
diagram Fig.4A.
4. Install appropriate junction box cover.B
Models VRC4440DWG and VRC4440DTG
(two element models):
These models are provided with a field wiring box on the back of
the heater. Branch circuit wiring must be routed to heater using
Heater Wiring Box for VRC4440DWG
and VRC4440DTG
OPERATING
INSTRUCTIONS
1. Your heater operates using infrared short wave technology to
heat objects, not the air. Therefore, the heater installation
should direct the rays towards the object(s) needing heat.
TO AVOID A POSSIBLE FIRE DO NOT PLACE ANY OBJECTS
CLOSER THAN 7 FT (2.1 M) IN FRONT OF HEATER OR 36 "
(914 MM) FROM SIDES..
2. Your heater comes completely assembled except for the
attachment of the heater to the wall bracket. Do not operate
your heater unless it is properly installed as indicated in the
INSTALLATION INSTRUCTIONS section.
3. To operate, energize the electrical circuit to heater by turning
on the breaker or disconnect switch feeding the heater.
Heater should immediately come on with bulb lighting up.
NEVER STARE AT BULB DURING OPERATION AS THIS
COULD CAUSE A POSSIBLE EYE INJURY.
Figure 4B - Wiring Diagram (2 element model shown)
3
MAINTENANCE
INSTRUCTIONS
1. Your heater is designed and constructed to provide years of
trouble free operation with little maintenance. Periodic cleaning and inspection for damage is necessary to assure safe
and efficient operation.
2. Always disconnect power to heater and allow it to cool before
performing any maintenance function.
3. The external heater housing may be cleaned using a cloth
with mild detergent. Do not allow water to enter inside
heater.
4. The reflector and bulb should be kept clean to help the
heater operate efficiently. Using a soft cloth, gently wipe the
reflector and bulb to remove any residue.
IMPORTANT NOTE: Avoid touching the bulb with your fingers
as oils from your body will cause a premature failure of the bulb .
Should you accidentally touch the bulb, immediately clean it with
a soft cloth moistened with alcohol.
5. Periodically inspect the power cable and heater for damage.
Do not use if damaged. Consult an electrician to make any
necessary repairs.
BULB REPLACEMENT:
Periodically the bulb may need to be replaced if it fails to operate. This must be done by a qualified electrician or electrical
repair service. Replacement bulbs can be obtained by contacting 1-800-654-3545 or by visiting www.marleymep.com
Be sure to note the model number noted on the heater
ID nameplate and date code.
LIMITED WARRANTY for HRA and VRC Series Infrared Heaters
The products covered by this installation manual, manufactured and/or sold by Marley Engineered Products, are warranted against defects in workmanship and materials
for two years from date of purchase, except emitters (or bulbs) which are warranted against defects in workmanship and materials for 60 days from date of purchase. 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
purchase.
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 Returned Goods Department. Within the limitations of this warranty, inoperative units should be returned to 470 Beauty Spot Road,
Bennettsville, SC 29512, with a complete description of the problem, proof of purchase documents, and customer’s full name and address. Merchandise returned to the
factory must also be accompanied by a Material Return Authorization (MRA) a available from Marley Engineered Products. For warranty questions and assistance in
obtaining the MRA documents required for return of the product, contact Marley Engineered Products in Bennettsville, SC, at 1-800-642-4328.
When requesting the MRA, include Model numbers and date code as shown on the product’s nameplate. In warranty returns will be repaired or replaced, 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 MERCHANTABILITY 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 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.
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
Note: Do not return to manufacturer.
470 Beauty Spot Rd. East
Bennettsville, SC 29512 USA
4
Calefactores radiantes
comerciales
VRC44 Series
eets ANSI/UL 2021
M
and CSA C22.2 No. 46
Instrucciones de instalación, manejo y mantenimiento
Tabla 1. Especificaciones
MODEL VOLTIOS FASE WATTS AMPERIOS BTUHR
VRC4420SG 240 1 2000 8.4 6824
VRC4440DWG 240 1 4000 16.7 13648
VRC4440DTG 240 1 4000 16.7 13648
INSTRUCCIONES IMPORTANTES
Lea cuidadosamente – Esta hoja de instrucciones contiene información muy importante para la instalación apropiada,
uso y manejo eficiente del calefactor descrito. Lea cuidadosamente este manual antes de la instalación, limpieza o
manejo del calefactor. No cumplir las instrucciones podría resultar en incendio, descarga eléctrica, muerte, lesiones
personales graves o daño a la propiedad. Guarde estas instrucciones y repáselas frecuentemente para continuar el
manejo seguro e instruir los usuarios futuros.
AL UTILIZAR APARATOS ELÉCTRICOS, SIEMPRE DEBEN
SEGUIRSE PRECAUCIONES BÁSICAS PARA REDUCIR EL
RIESGO DE INCENDIO, DESCARGA ELÉCTRICA Y
LESIONES A PERSONAS, INCLUYENDO LO SIGUIENTE:
1. Lea todas las instrucciones antes de instalar o utilizar este
calefactor.
2. Todas las conexiones de cables deben cumplir el Código
Eléctrico Nacional (NEC) en EE.UU., el Código Eléctrico
Canadiense (CEC) en Canadá y todos los códigos locales
aplicables; y el calefactor debe conectarse a tierra.
3. Este calefactor estará caliente mientras está en uso. Para
evitar quemaduras, no permita que la piel desnuda haga
contacto con las superficies calientes. Mantenga los materiales combustibles, tales como muebles, almohadas, ropa
de cama, papeles, ropa, etc. y cortinas a 7 pies (2.1 m) de
distancia como mínimo de la parte delantera del calefactor.
4. Se debe tener extrema precaución cuando el calefactor se
utiliza cerca de niños o personas discapacitadas y cuando
el calefactor se deja funcionando sin supervisión.
GUARDE ESTAS INSTRUCCIONES
5. Este calefactor tiene clasificación IPX5 para uso en exteriores.
6. No inserte ni permita que objetos extraños ingresen al calefactor ya que esto podría causar una descarga eléctrica,
incendio, o daño del calefactor.
7. Para evitar un incendio, tenga cuidado de no obstaculizar el
calefactor y de mantener los espacios libres requeridos.
8. Un calefactor tiene en su interior piezas calientes, piezas
que forman arcos eléctricos o piezas que producen chispa.
No utilice esta unidad en áreas donde se utiliza o almacena
gasolina, pintura, vapores o líquidos inflamables.
9. Utilice este calefactor únicamente según se describe en
estemanual. Cualquier otro uso no recomendado por el fabricante podría causar un incendio, descarga eléctrica, o
lesiones a personas.
10. No utilice como calefactor residencial o casero.
5
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