Detroit Radiant Products MW-24 User manual

WARNING
!
!
Detroit Radiant Products Company
All persons involved with the installation, operation and maintenance of the heater system must read and
understand the information in this manual.
Overhead Medium Wave Electric Infrared Heater
Installation, Operation, Maintenance and Parts
1, 2 and 3 Lamp Units
MW Series Manual
Improper installation, adjustment, alteration, service or maintenance can cause
property damage, injury or death. Read and understand the installation,
operating and maintenance instructions thoroughly before installing or servicing
this equipment.
LIOMV-Rev. 34613
10 /14 (DRP)
INSTALLER: Present this manual to the end user.
Keep these instructions in a clean and dry place for future reference.
Model#: ___________________ Serial #: _________________________
(located on rating label)

MW Series
2
Contents
1.0 Safety.................................................................... 3
Safety Symbols ....................................................... 3
Applications .......................................................... 3
Model Number Designation Chart......................................... 4
Available Models and Operational Specifications ............................. 4
Clearance to Combustibles .............................................. 5
Safety Signs and Labels ................................................ 7
Standards, Certifications and Government Regulations ........................ 8
2.0 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Heater Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Lamp Installation ...................................................... 13
Outdoor Application.................................................... 14
Electrical Wiring....................................................... 14
3.0 Maintenance .............................................................. 16
Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Heater Assembly Components ........................................... 18
Parts Listing.......................................................... 19
4.0 Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

MW Series
3
Safety Symbols
Safety is the most important consideration during installation, operation and maintenance of the infrared
heater. You will see the following symbols and signal words when there is a hazard related to safety or
property damage.
Improper installation, adjustment, alteration, service or maintenance can cause
property damage, serious injury or death. Read and understand the installation,
operating and maintenance instructions thoroughly before installing or servicing this
equipment. Only trained, qualified personnel with proper electrical experience may
install or service this equipment.
1.0 Safety •Safety Symbols •Applications
Applications
Commercial / Industrial (Indoors & Outdoors)
Infrared heaters are designed and certified for use in industrial and commercial buildings such as
warehouses, manufacturing plants, aircraft hangars and vehicle maintenance shops. For maximum safety,
the building must be evaluated for potential hazards before installing the heater system. A critical safety
factor to consider before installation is the clearance to combustibles.
Outdoor Residential Only
This heater is NOT approved for use in an indoor residential application. This includes, but not limited to,
attached garages, living quarters, solariums, etc. Consult the local fire marshal and/or insurance provider
if unsure of your application.
Not For Residential Use.
Installation of this infrared heater system in residential indoor spaces, RV’s, mobile homes,
etc. may result in property damage, fire, serious injury or death.
1.0 Safety
Warning indicates a potentially hazardous situation
which, if not avoided, could result in death or injury.
Caution indicates a potentially hazardous situation
which, if not avoided, could result in minor or
moderate injury.
Notice indicates a potentially hazardous situation
which, if not avoided, could result in property
damage.
NOTICE
WARNING
!
!
CAUTION
!
WARNING
!
!
WARNING
!
!

MW Series
4
Available Models and Operational Specifications
Model Number Designation Chart
Model Configuration Examples: MW-24B1-C07, or MW-46S2-G20
1.0 Safety •Model Number Designation Chart • Available Models
Series Lamp Qty. Voltage; Phase Amperes Total Wattage BTU/h
Series Material Type Lamp Qty. Voltage Code Lamp Wattage Code
MW-24
MW-33
MW-46
B= Black Powder Coat
or
S= Stainless Steel
1A= 120 VAC
B= 208 VAC
C= 240 VAC
G= 480 VAC
H= 575 VAC
07=750
12=1250
20=2000
30=3000
2
3
MW-24
1
120; 1ph 6.25
750 2,559208; 1ph 3.6
240; 1ph 3.1
2
120; 1ph 12.5
1,500 5,118208; 1ph 7. 2
240; 1ph 6.2
3
120; 1 or 3ph 18.7
2,250 7,677208; 1 or 3ph 10.8
240; 1 or 3ph 9.3
MW-33
1
120; 1ph 10.4
1,250 4,265208; 1ph 6.0
240; 1ph 5.2
2
120; 1ph 20.8
2,500 8,530208; 1ph 12.0
240; 1ph 10.4
3
120; 1 or 3ph 27.0
3,750 12,796208; 1 or 3ph 15.6
240; 1 or 3ph 13.5
MW-46
1
120; 1ph 16.6
2,000 6,824
208; 1ph 9.6
240; 1ph 8.3
480; 1ph 4.2
575; 1ph 5.2 3,000 10,236
2
208; 1ph 19.2
4,000 13,649240; 1ph 16.6
480; 1ph 8.3
575; 1ph 10.4 6,000 20,473
3
208; 1 or 3ph 28.8
6,000 20,473240; 1 or 3ph 25.0
480; 1 or 3ph 12.5
575; 1 or 3ph 15.6 9,000 30,709

MW Series
5
Combustible Items Include: Moving Objects Include:
• Wood • Overhead doors
• Paper • Vehicles on lifts
• Fabric • Cranes
• Chemicals • Hoists
• Wall or roof insulation • Car wash equipment
When installing the infrared heater system, the minimum clearances to combustibles must be maintained.
These distances are shown in Chart 1.1 and on the heater. If you are unsure of the potential hazards,
consult your local fire marshal, fire insurance carrier or other qualified authorities on the installation of
infrared heaters for approval of the proposed installation.
A critical safety factor to consider before installation is the clearances to combustibles. Clearance to
combustibles is defined as the minimum distance you must have between the indicated surface and the
combustible item. Considerations must also be made for moving objects around the infrared heater. The
following is a partial list of items to maintain clearances from:
Hazards Include:
For maximum safety the building must be evaluated for hazards before installing the heater system.
Examples include, but are not limited to:
• Gas and electrical lines
• Combustible and explosive materials
• Chemical storage areas
• Areas of high chemical fume concentrations
• Provisions for accessibility to the heater
• Adequate clearances around air openings
• Vehicle parking areas
• Vehicles with lifts or cranes
• Storage areas with stacked materials
• Lights
• Sprinkler heads
• Overhead doors and tracks
• Dirty, contaminated environment
Signs shall be posted specifying the maximum permissible stacking height in order to
maintain clearances to combustibles.
Placement of explosive objects, flammable objects, liquids and vapors close to the heater
may result in explosion, fire, property damage, serious injury or death. Do not store, or use,
explosive objects, liquids and vapor in the vicinity of the heater.
Failure to comply with the published clearances to combustibles could result in personal
injury, death and/or property damage.
The outside surfaces of the heater are hot during operation and after operation. If contact is
made, permanent skin damage may occur. Do not move, handle, or service the unit during
operation or while hot.
CAUTION
!
1.0 Safety •Clearance to Combustibles
Clearance to Combustibles
WARNING
!

MW Series
6
Wattage
Range
Mounting
Angle
Side
End Top BelowFront Behind*
750 to
1,600
0° 24 24 24 640
45° 40 24 24 10 40
2,000 to
2,500
0° 24 24 24 646
45° 46 24 24 10 46
3,000 to
3,200
0° 24 24 24 656
45° 56 24 24 10 56
3,650 to
3,800
0° 24 24 24 662
45° 62 24 24 10 62
4,000 to
4,800
0° 24 24 24 672
45° 72 24 24 10 72
5,000 to
7,600
0° 24 24 24 6 84
45° 84 24 24 10 84
9,000 to
11, 40 0
0° 24 24 24 696
45° 96 24 24 10 96
1.0 Safety •Clearance to Combustibles
Chart 1.1 • MW Series Clearance to Combustibles in Inches (see Figure 1.1)
*A minimum clearance of 36 inches must be maintained from behind another heater.
NOTE: Ensure that building materials with a low heat tolerance (i.e, awnings, fabrics, plastics, sprinklers,
insulation, etc.) are protected against degradation. This may require the heater to be mounted at a
distance in excess of the published clearances to combustibles. Contact the material manufacturer for
specific details.
Figure 1.1 •Clearance to Combustibles
SIDE
SIDE
BELOW
TOP
END
TOP VIEW •0°
END
FRONT
BELOW
BEHIND
TOP
END VIEW
45° Mounting Angle
END VIEW
0° Mounting Angle

MW Series
7
CAUTION:
Use Supply Wires Suitable for 200˚C
ATTENTION:
Employer des câbles électrique résistant à 200˚C
DETROITRADIANT PRODUCTS COMPANY
21400H OOVERROAD - WARREN, MI
DETROIT RADIANT INFRARED RADIANT ELECTRIC HEATER
FORINDOOR COMMERCIAL/INDUSTRIAL USE.
FORPROTECTED AND UNPROTECTED OUTDOOR USE.
NOTFOR INDOOR RESIDENTIAL USE!
[phone] - www.detroitradiant.com
PHASE:
FREQUENCY:
AMPERES
Single
50/60 Hz
3.1
DESIGN COMPLIES WITH:
UL20211997 & C22.2 No. 46-M1988 - Electric Air - Heaters
MININMUM
MOUNTINGANGLE:
0 Degrees
Serial No. 0914 DETR 021400 0001
MODELNO.
MW-24B1-C20
VERSION
9/14
VOLTAGE
240
WATTAGE
750
MAXIMUM
MOUNTINGANGLE:
45 Degrees
Safety Signs and Labels
It is important to provide warnings to alert individuals to potential hazards and safety actions. Signs should
state the hazards for the particular application and be legible to the building occupants. Consult the
factory or a factory representative for additional information on signage compliance.
Safety warning labels must be maintained on the infrared heater. Illustrations of the safety labels, and their
locations, are pictured below. When no longer legible, they must be replaced. Contact either your local
distributor or the product manufacturer for obtaining replacement signs or labels.
1.0 Safety •Safety Signs and Labels
Top View
F/N: LL01 - Clearance Safety Tag
(Affix adjacent to heater’s controller)
0°
45°
0°
45°
0°
45°
0°
45°
0°
45°
0°
45°
0°
45°
CLEARANCE TO COMBUSTIBLES (in inches)
LLECL001-M-1/12(CDS)
AVOID EQUIPMENT
FAILURE. Use 10AWG
supply wires suitable for
105°C or equivalent.
ÉVITEZ LES PANNES
D'ÉQUIPEMENT. Employer 10AWG
des fils d'alimentation adéquats pour
105°C.
Apply proper voltage.
Appliquez la tension appropriée.
Read and understand the installation, operating and maintenance instructions thoroughly before
installing or servicing this equipment. Failure to properly apply product may result in property
damage, injury or death.
Lisez et comprenez l'installation, opérant et des instructions de maintien à fond avant l'installation ou l'entretien de cet
équipement. L'échec de correctement appliquer le produit peut aboutir aux dégâts de propriété, la blessure ou la mort.
SHOCK HAZARD. Disconnect all
supplies before working on any circuit.
RISQUE D’ÉLECTROCUTION. Débrancher
toutes les alimentations avant d'exécuter des
travaux sur un circuit quelconque.
Heater MUST be properly grounded prior to
operation.
L'appareil de chauffage DOIT être correctement fondé
avant l'opération.
HOT. Do not touch any part of the heater
while in operation.
CHAUD. Ne touchez pas de partie de l'appareil
de chauffage tandis que dans l'opération.
Wattage Angle Front Behind* End Top Below
FIRE HAZARD. Always maintain published clearance to
combustibles. In locations used for the storage of combustible
materials, signs must be posted.
DANGER D’INCENDIE. Toujours maintenir un dégagement publié à combustibles.
Dans les endroits utilisés pour le stockage de matériaux combustibles, panneaux
doivent être installés.
Model Mounting Side
SIDE VIEW - 0°END VIEW - 0°
Top
EndEnd
END VIEW - 45°
Below
Front
Top
Behind
Side
Top
Side
Below
*Behind clearance must maintain a minimum of 36” from another heater.
4,000
6,000
3,000
3,500
9,000
750
2,000
2,500
1,500
1,250
6
10
6
10
6
10
6
10
6
10
6
10
6
10
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
30
24
30
24
30
24
30
24
38
24
48
24
52
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
44
44
44
44
CAUTION: Mount with bottom of heater at least 8 feet(2.4m) above floor grade.
ATTENTION: Intallez à au moins 8 pieds (2.4m) du plancher.
*Derrière le dégagement doit maintenir un minimum de 36 "d'un autre appareil de chauffage.
F/N: LLECL001 - Clearance to Combustibles Label
Electrical Label
(Located inside raceway)
CAUTION:
Use Supply Wires Suitable for 200˚C
ATTENTION :
Employer des câbles électrique résistant à 200˚C
Rating Plate
DETROIT RADIANT PRODUCTS COMPANY
21400 HOOVER ROAD - WARREN, MI
DETROIT RADIANT INFRARED RADIANT ELECTRIC HEATER
FOR INDOOR COMMERCIAL/INDUSTRIAL USE.
FOR PROTECTED AND UNPROTECTED OUTDOOR USE.
NOT FOR INDOOR RESIDENTIAL USE!
[phone] - www.detroitradiant.com
PHASE:
FREQUENCY:
AMPERES
Single
50/60 Hz
3.1
DESIGN COMPLIES WITH:
UL2021 1997 & C22.2 No. 46-M1988 - Electric Air - Heaters
MININMUM
MOUNTING ANGLE:
0 Degrees
Serial No. 0914 DETR 021400 0001
MODEL NO.
MW-24B1-C20
VERSION
9/14
VOLTAGE
240
WATTAGE
750
MAXIMUM
MOUNTING ANGLE:
45 Degrees
Caution Label
(For all models over 4,000 Watts) NOTE: USE COPPER CONDUCTORS ONLY
LAMP NO. 1
L1 L2
LAMP NO. 2
LLWEL02-1M-03/11(CDS)
CAUTION
- VERIFY SUPPLY VOLTAGE -
DISCONNECT FROM ELECTRICAL SUPPLY
BEFORE SERVICING THIS HEATER.
THIS APPLIANCE MUST BE PROPERLY
GROUNDED TO THE ELECTRICAL SOURCE.

MW Series
8
1.0 Safety •Standards, Certifications and Government Regulations
Standards, Certifications and Government Regulations
Installation of this infrared heater must comply with all applicable local, state and national specifications,
regulations and building codes. Contact the local building inspector and/or fire marshal for guidance.
The heater must be electrically grounded in accordance with the following codes:
United States: Refer to National Electrical Code®, ANSI/NFPA 70 (latest edition).
Wiring must conform to the latest edition of National Electrical
Code®, local ordinances, and any special diagrams from the manufacturer.
Canada: Refer to Canadian Electrical Code CSA C22.1 Part 1 (latest edition).
Detroit Radiant Products Company units comply or are certified by one or more of the following
organizations or standards:
• CSA 22.2 #46 - M1988
• UL 2021 - Edition 3

MW Series
9
2.0 Installation •Design
Read and understand, the installation, operating and maintenance instructions
thoroughly before installing or servicing this equipment.
Design
To ensure a safe, properly designed heating system, a layout should be developed for the correct
placement of the infrared heater(s).
Aside from safety factors such as clearance to combustibles (see Chart 1.1 on page 6), you should also
take into consideration the environment (e.g., cold/drafty, average, protected), heat coverage (sq. ft.)
needed, heater centers, the distance behind a person or work station(s). Also, the effective infrared
surface temperature of a person or object may be diminished with wind above 5 mph. Wind barrier(s)
may be required. Most importantly, clearance to combustibles must always be maintained! Refer to
hazards on page 5.
When positioning the heaters, keep in mind combustible materials, lights, sprinkler heads, overhead
doors, storage area with stacked materials, gas and electrical lines, parked vehicles, cranes, etc. Refer to
Page 6 for minimum clearance to verify that a safe installation exists.
This installation manual, along with national, state, provincial and local codes, address these issues. It is
critical that you read, understand and follow all guidelines and instructions. Always inspect and evaluate
the mounting conditions, application, and wiring.
When heated, materials high in hydrocarbons (solvents, paint thinner, mineral spirits, formaldehydes, etc.)
can evaporate and/or degrade. This may result in odors or fumes being emitted into the environment. To
correct this problem, clean the area and/or introduce additional ventilation. Heaters installed and serviced
in accordance with the installation manual do not emit foul odors into the environment.
IMPORTANT: Fire sprinkler heads must be located at an appropriate distance from the heater to avoid
an inadvertent discharge. This distance may exceed the published clearance to combustibles. Certain
applications may require the use of high temperature sprinkler heads or relocation of the heaters.
Fire sprinkler systems containing propylene glycol, antifreeze or other potentially flammable substances
shall not be used in conjunction with this heater without careful consideration for and avoidance of
inadvertent discharge hazards. For further information consult CSA or NFPA codes. Always observe
applicable provinces or states and local codes.
CAUTION
!
2.0 Installation
WARNING
!
!

MW Series
10
2.0 Installation •Design
Figure 2.1 • Heating Application
Dim A*
Dim B
Series
Lamp
Qty.
Recommended
Mounting Height (Ft.)*
[Dim. A]
Recommended
Distance Between
Heaters (Ft.) [Dim. B]
Approx.
Square Foot
Coverage
Approximate Watts
per Square Foot
MW-24
17 to 9 2 to 7 200 4
27 to 9 3 to 9 200 8
38 to 10 4 to 11 300 8
MW-33
17 to 9 3 to 9 200 6
28 to 10 4 to 11 300 8
38 to 10 5 to 13 300 11
MW-46
18 to 10 4 to 11 300 7 to 10
210 to 14 5 to 13 500 8 to 12
310 to 15 6 to 15 500 12 to 18
Chart 2.1 • MW Series Basic Heating Application Chart
When comfort heating people, two heaters should be used to heat both sides of the individual. Heater
installation shall comply with all IOPM, NEC, ANSI/NFPA-70, CEC, and local restrictions.
*Clearance to combustibles published in the MW Series Installation, Operation, Maintenance and Parts
Manuals and on safety labels must be maintained at all times. Factory recommended mounting heights are
listed as a guideline. If infrared heaters are mounted too low or too high, they may result in discomfort or
lack of heat.
Type of Building
Watts Req. per Square
Foot at Floor Level
Insulated 10
Uninsulated 16
Outdoor Sheltered 25 to 30
Outdoor Unsheltered 30 to 45
Chart 2.2 • Estimating Required Load

MW Series
11
2.0 Installation •Heater Mounting
WARNING
!
Heater Mounting
Improper suspension of the infrared heater may result in collapse and being crushed.
Always suspend from a permanent part of the building structure that can support the total
force and weight of the heater.
Failure to maintain minimum clearance to combustibles may result in fire and/or explosion,
property damage, serious injury or death. Always maintain minimum clearances and post
signs or provided tags (F/N: LL01) adjacent to heaters controller. Signs should state the
hazards for the particular application and be legible to the building occupants. Consult the
factory or a factory representative for additional information on signage compliance.
The heater can be suspended with chains or rigid threaded rod. Local codes, or conditions that would
cause the unit to move (e.g., wind drafts, blowers, crane rails, etc.), may require rigid threaded rod.
Consult all applicable codes before installation.
The heater must be level from side to side and may be 0° to 45° on horizontal. Refer to figures 2.2 and
2.3.
Figure 2.2 •Heater Dimensions
Chart 2.3 • Physical Dimensions (inches)
Figure 2.3 •Mounting Centers
10.50
B
A
C
Mount Heater Level
- Side to Side -
(Center of Mounts)
Model No. ABC
MW-24-X1 23.50 9.25 24.00
MW-24-X2 23.50 15.00 24.00
MW-24-X3 23.50 20.75 24.00
MW-33-X1 32.50 9.25 33.00
MW-33-X2 32.50 15.00 33.00
MW-33-X3 32.50 20.75 33.00
MW-46-X1 45.50 9.25 46.00
MW-46-X2 45.50 15.00 46.00
MW-46-X3 45.50 20.75 46.00
3.75

MW Series
12
2.0 Installation •Heater Mounting
Top Channel Assembly
1Attach the mounting brackets to the top wire raceway. On each end, place (1) 1/4” x 1/2” bolt through
the bottom hole of the mounting bracket and through the bottom hole of the top wire raceway.
Place (1) 1/4” lock nut on each bolt. Do not tighten completely. Refer to figure 2.4.
NOTE: The mounting brackets are NOT required for chain suspension.
2Adjust wire raceway to desired mounting angle
3On each side, place (1) 1/4” x 1/2” bolt through slot in the mounting bracket and the hole in the top wire
raceway. Place (1) 1/4” lock nut on each bolt and tighten.
4Tighten lock nuts from Step 1.
5Hook heater body into mounted wire raceway. Unit will hang freely by the “T” hinge, leaving both
hands free to wire unit. Refer to figure 2.4.
6Run supplied high temperature wires out to field supplied junction box. DO NOT make connections
inside the wire raceway
7Close wire raceway using the (4) #8-32 x 3/8” grounding screws provided in hardware pack.
Figure 2.4 •Top Channel Assembly
Wire Raceway
T-Hinge
#8-32 x 3/8”
Grounding
Screw
1/4” x 1/2” Bolt
#8-32 x 3/8” Grounding Screw

MW Series
13
2.0 Installation •Lamp Installation
NOTE: MW Series heaters are designed for use with Quartz lamp infrared heating elements only. They
are NOT intended to be used with straight metal rod heating elements. Replace lamps with parts
from Detroit Radiant Products Company only.
Lamp Installation
Disconnect power prior to installing or replacing supplied quartz lamp(s). The elements can and should
be installed prior to mounting the heater.
1Remove the service access panels and open lamp retainers.
2Position heating elements in “U” slots at the ends of the reflector.
3Close lamp retainers to secure the heating element in the slot (see Figure 2.5).
NOTE: Avoid handling the quartz glass as much as possible. Quartz glass should be wiped off with
alcohol using a clean cloth.
4Reinstall service access panels using sheet metal screws as removed in Step 1.
Figure 2.5 •Lamp Installation
CAUTION
!
Element
cap
“U” Slots
End caps must be in good
electrical contact with fuse clip/
lamp snap retainer.

MW Series
14
WARNING
!
Electric Shock
Field wiring to the heater must be connected and grounded in accordance with national,
state, provincial, local codes and to the guidelines in the this manual. In the United States
refer to the most current revisions to the ANSI/NFPA 70 Standard and in Canada refer to
the most current revisions the CSA C22.1 Part I Standard.
Disconnect power to heater before servicing.
Failure to follow these instructions can result in death or electrical shock
This fixture is equipped with high temperature silicone lead wires to make connections to branch circuit.
Remove the wire-ties prior to making electrical connections.
Wiring connections should always be through one of the knockouts in the top wire raceway. Wire
connections must also be made outside the of the top wire raceway. Consult the factory, or a qualified
electrician for details on staging.
Supply wires must be a copper conductor type, with a minimum size of 10AWG.
Infrared heater must be connected to the earthing conductor (green wire) installed by the factory.
See above for use in Totally Exposed Outdoor Applications.
Electrical
2.0 Installation •Outdoor Application • Electrical
Totally Exposed Outdoor Applications
Figure 2.6 • Exposed Outdoor Application
CAUTION
!
For totally exposed outdoor applications (not ceiling protected) ensure connections are made as illustrated
in Figure 2.6
NOTE: All conduit, conduit fittings, and junction boxes are field supplied. Must be NEMA Type 4x or
equivalent. Heater must be suspended from mounting brackets.
6”
Minimum

MW Series
15
2.0 Installation •Wiring Diagrams
Wiring Diagrams
Field Wiring
Figure 2.7 • MW Wiring Diagram •Units with 1 Lamp
Figure 2.10 • Single Phase Service Figure 2.11 •Three Phase Service
Figure 2.8 •MW Wiring Diagram •Units with 2 Lamps
Figure 2.9 •MW Wiring Diagram •Units with 3 Lamps
LAMP NO. 1
L1 L2
LAMP NO. 1
L1 L2
LAMP NO. 2
LAMP NO. 1
L1 L2
LAMP NO. 2
LAMP NO. 3
SINGLE LAMP UNIT
DOUBLE LAMP UNIT
TRIPLE LAMP UNIT
CONTROL
DEVICE
L1 L2
L1 L2
L1 L2
L1 L2
TRIPLE LAMP UNIT
CONTROL
L1 L3
L1 L2
L1 L3
L3 L2
DEVICE
L2

MW Series
16
3.0 Maintenance
1Clean reflector surface with a damp cloth.
2Ensure heater is secure on all hanging points.
3Maintain clearance to combustibles at all times. Immediately remove objects in violations of the
published clearance to combustibles.
4Check electrical wires and connections for wear or any kind of damage.
It is recommended that the following become a standard yearly procedure to obtain maximum operating
efficiency and trouble free operation.
During long periods of non-usage, remove or cover heater with a polyethylene bag and disconnect from
power supply. If further service to the heater is desired, contact your representative or the factory.
3.0 Maintenance •Maintenance Checks & Log

MW Series
17
3.0 Maintenance •Troubleshooting Guide
Is there too much heat?
Troubleshooting Guide Key
Start
Question Process
Question
Corrective
Action
Turn Heater on from power source.
Does the heating
lamps turn on?
Are the heating lamps
physically damaged?
Are the heating lamps
wired as indicated in
the manual?
Find the source of the electrical problem between panel and heater.
No
No
Yes
Yes
Is there a sufficient
amount of heat? Is the supply voltage correct for the
model type on the rating label?
Is the heater mounted within the
recommended height?
No
No
Mount heater within the
recommended mounting heights.
Yes
No
No
Yes
Yes
No
Yes
Replace heating lamp(s).
Rewire lamps as indicated
in this manual.
Supply correct voltage
Heater size and/or quantity of
heaters, may be incorrect for
application.
Troubleshooting ends.
Yes

MW Series
18
3.0 Maintenance •Heater Assembly Components
Heater Assembly Components
Figure 3.1 • Components
For complete information on MW Series replacement parts, visit the online replacement parts library at
http://www.reverberray.com/partscenter. For discontinued models, consult the factory.
012
013
014
106
206
306
152, 153, 154,
252, 253, 254,
352, 353, 354
002
003
004
1070-1094
057,
058,
059
033
034
035
031
037
027
026
028
016
155,
255,
355
1051

MW Series
19
3.0 Maintenance •Parts Listing
Electric Parts Listing
1Specify [B] Black or [S] Stainless Steel finish.
Visit our online parts reference library at store.reverberray.com for further part related technical data.
Chart 3.1 • General Parts List
Part No. Description Part
No.
Description
EL- 0 0 2 Gold Anodized Reflector, 24 Inch Model EL-1078 Lamp; 3ft, 120V, 1,250W
EL- 0 0 3 Gold Anodized Reflector, 33 Inch Model EL-1080 Lamp; 3ft, 280V, 1,250W
EL- 0 0 4 Gold Anodized Reflector, 46 Inch Model EL-1082 Lamp; 3ft, 240V, 1,250W
EL- 012 Gold Anodized Reflector Channel, 24 Inch Model EL-1086 Lamp; 4ft, 120V, 2,000W
EL- 013 Gold Anodized Reflector Channel, 33 Inch Model EL-10 88 Lamp; 4ft, 208V, 2,000W
EL- 014 Gold Anodized Reflector Channel, 46 Inch Model EL-10 9 0 Lamp; 4ft, 240V, 2,000W
EL- 0161Mounting Brackets EL-10 92 Lamp; 4ft, 480V, 2,000W
EL- 0 26 #10 Hex head with Star Washer, Self Threading, Fine
threads 3/8
EL-10 94 Lamp; 4ft, 575V, 3,000W
Single Lamp Model Parts List
EL- 0 27 1/4 - 20 x 1/2 inch bolt for bracket EL-1061Service Access Panel, Single Lamp
EL- 0 28 1/4-20 Nut EL-1521Single Lamp Shell Assembly, 24 Inches
EL- 0 29 1/4 Split lock washer EL-1531Single Lamp Shell Assembly, 33 Inches
EL- 0 30 Stainless Steel Rivet EL-15 41Single Lamp Shell Assembly, 46 Inches
EL- 0 31 Green Ground Screw EL-155 Single Lamp Chassis Assembly
EL- 0 33 Wire, length for 33, 12 Gauge Double Lamp Model Parts List
EL- 0 3 4 Wire, Length for 24 12 Gauge EL-2061Service Access Panel, Double Lamp
EL- 0 35 Wire, length for 46 12 Gauge EL-2521Double Lamp Shell Assembly, 24 Inches
EL- 0 36 Snap-on Fork Terminal for connector EL-2531Double Lamp Shell Assembly, 33 Inches
EL-037 Wire Bushing, 2201 EL-2541Double Lamp Shell Assembly, 46 Inches
EL- 0 571Wire Raceway Cover Assembly, 24 Inch Model EL-255 Double Lamp Chassis Assembly
EL- 0 581Wire Raceway Cover Assembly, 33 Inch Model Triple Lamp Model Parts List
EL- 0 591Wire Raceway Cover Assembly, 46 Inch Model EL- 3061Service Access Panel, Triple Lamp
EL-10 51 Lamp Clip Assembly EL- 3521Triple Lamp Shell Assembly, 24 Inches
EL-1070 Lamp; 2ft, 120V, 750W EL- 3531Triple Lamp Shell Assembly, 33 Inches
EL-1072 Lamp; 2ft, 208V, 750W EL-3541Triple Lamp Shell Assembly, 46 Inches
EL-1074 Lamp; 2ft, 240V, 750W EL-355 Triple Lamp Chassis Assembly

MW Series Manual4.0 Limited Warranty
4.0 Limited Warranty
One-Year Limited Warranty. Detroit Radiant Products Company (hereinafter referred to as the Company)
warrants to the original purchaser or original user that all Detroit Radiant Products Company sold by it and all
parts thereof are free from defects in material or workmanship under normal use and service. The Company’s sole
obligation under this warranty shall be limited to furnishing replacement parts, F.O.B. Warren, Michigan, for 12
months from the date of initial installation of the heater, but not to exceed 18 months from the date of shipment by
the Company of the heaters, for any parts which the Company’s examination shall disclose to its satisfaction to be
defective. Defective parts are to be returned to the Company, transportation charges prepaid.
General Conditions. The warranties set out in this certificate are the exclusive remedy of the original owner or
user in lieu of all other warranties written, oral or implied (including any warranty of merchantability or fitness for
the purpose) and all other obligations or liabilities on the part of the Company, and the Company neither assumes
nor authorizes any person to assume for it any other obligation or liabilities on the part of the Company, and the
Company neither assumes nor authorizes any person to assume for it any other obligation or liability in connection
with the sale, installation or use of the heater or any parts thereof.
The Company will not be responsible for labor charges for the analysis of a defective condition in the heater
or for the installation of replacement parts. The warranties provided herein will not apply if the input of the
heater exceeds the rated input at time of manufacturing or if the heater in the judgment of the Company has
been subjected to misuse, excessive dust, improper conversion, negligence, accident, corrosive atmospheres,
excessive thermal shock, excessive vibration, physical damage to the heater, alterations by unauthorized service
personnel, operation contrary to the Company’s instructions or if the serial number has been altered, defaced, or
removed. The Company shall not be liable for any default or delay in the performance of these warranties caused
by contingency beyond its control, including war, government restriction or restraints, strikes, fire, flood, short or
reduced supply of raw materials, or parts.
The warranties herein shall be null and void if the heater is not installed by a competent heating contractor and/
or if the heater is not installed according to Company instructions, normal industry practices and/or if the heater
is not maintained and repaired according to Company’s instructions. Normal product degradation and wear (rust,
oxidation, etc.) does not constitute a material defect and applicable warranty claim.
Written permission is required for the return of any parts or equipment and any such return must be made on the
basis of transportation charges prepaid. Shipment may be refused unless prior written permission is obtained and
goods returned prepaid.
© 2014 Detroit Radiant Products Company
21400 Hoover Road, Warren, MI 48089 USA
Voice: [phone] ●Fax: [phone]
Website: www.reverberray.com