Combustion Research Reflect-O-Ray EDS-4DI User manual

COMBUSTION RESEARCH CORPORATION
Issue Date: 8/30/2005 Revision Date: 6/24/2008 Rev. 6a Bulletin R050830
TM TM
EDS & EHS 4
Gas fired, Low Intensity Infrared Vacuum
Vented Infrared Heating Systems
Installation, Operating, Maintenance
and Parts Manual
Installer
Please take time to read and understand these
instructions prior to any installation. Installer must
give a copy of this manual to the owner.
Owner
Keep this manual in a safe place in order to provide
your serviceman with the necessary information.
WARNING
Read and understand these installation,
operating and maintenance instructions
thoroughly before installing or servicing
this equipment. Only trained, qualified gas
installation and service personnel may
install or service this equipment.
!
FOR YOU SAFTEY
If you smell gas:
1. Open windows
2. DO NOT try to light any appliance.
3. DO NOT use electrical switches.
4. DO NOT use any telephone in your
building.
5. Leave the building.
6. Immediately call your local gas
supplier after leaving the building.
Follow gas supplier’s instructions.
7. If you cannot reach your gas
supplier, call the Fire Department.
WARNING
Fire Hazard
Do not store or use gasoline or other
flammable vapors and liquids in the
vicinity of this or any other appliance.
Some objects will catch fire or explode
when placed near this heater.
Failure to follow these instructions can
result in death, injury or property
damage.
!
Combustion Research Corp.
2516 Leach Rd.
Rochester Hills, MI 48309-3555
Telephone: [phone]
Fax: [phone]
www.combustionresearch.com

Reflect-O-Ray®EDS-4DI & EHS-4DI Installation, Operation & Service
Combustion Research Corporation Page 1
WARNING
FIRE OR EXPLOSION HAZARD
Can cause death, severe injury and/or property damage.
1. Read this manual carefully before installing or servicing
this equipment. Improper installation, service or
maintenance can cause death, injury and/or property
damage.
2. Check clearances given on the outside of each burner to
make sure the product is suitable for your application.
3. Installer must be a trained, experienced service
technician.
4. All service must be performed only by a trained service
technician or representative
5. After installation is complete, check system operation as
provided in these instructions.
Combustibles: Failure to maintain the specified minimum
clearances to combustibles could result in a serious fire
hazard. Do not locate flammable or combustible materials
within this distance. Signs must be posted near thermostat
and in storage areas or in a conspicuous area to specify
maximum stacking height to maintain required clearances to
combustibles. Do not locate in hazardous atmospheres
containing flammable vapors or combustible dust.
United States: Installations in public garages or airplane
hangars are permitted when in accordance with NFPA-88
(latest edition) and NFPA-409 (latest edition) Codes.
Canada: Installation in public garages and airplane hangars
is permitted when in accordance with CAN/CGA B.149.1 &
CAN/CGA B149.2.
Vehicles: Minimum clearances must be maintained from
vehicles parked, below the heater. Ensure that adequate
clearance is maintained where vehicles are in operation or
being serviced.
Gas Connection: There is an expansion of the radiant pipe
With each firing cycle, and this will cause the burner to move
with respect to the gas line. This can cause a gas leak
resulting in an unsafe condition if the gas connection in not
made strictly in accordance with page 15 of these
instructions.
Ignition: This appliance does not have a pilot. It is equipped
with an ignition device, which automatically lights the burner.
Do not try to light the burner by hand.
Mechanical Hazard - Vacuum Exhauster: High speed
rotating vacuum exhauster impeller/wheel can cause severe
injury. Do not operate the vacuum exhauster without
impeller. Loose clothing can be drawn into unguarded inlet
and entangle with impeller wheel. Keep hands and fingers
away from inlet and outlet. Install exhaust duct with "bird
screen" or approved vent cap on vacuum exhauster outlet.
Mechanical Hazard - Suspension: Use appropriate
suspension hardware, beam clamps (rod or perforated
strap) and turnbuckles at predetermined locations. The
weight and normal movement of the heating system may
cause support failure if the following minimum suspension
requirements are not met: Distance between combination
hangers must be 10-ft. (3 M) or less; chain size must be 3/0
minimum or equivalent. DO NOT suspend 1/4 hp and larger
vacuum exhausters with chain. Failure of the suspension
system and associated supports can cause death, severe
injury or property damage.
NOTICE CAUTION
Failure to follow these instructions can cause personal injury
or property damage:
Caution must be used when running the system near
combustible materials such as wood, paper, rubber, etc.
Consideration should be given to partitions, storage racks,
hoists, building construction, etc. Page 5 & 6 outlines
minimum acceptable clearances to combustibles.
If the building has a slight negative pressure or
contaminants are present in the air, an outside combustion
air supply to the heaters is strongly recommended.
Do not use in an atmosphere containing halogenated
hydrocarbons or other corrosive chemicals. Some
compounds in the air can be drawn into the equipment and
can cause an accelerated rate of corrosion of some parts of
the radiant heat exchanger. The use of such chemical
compounds in or near the enclosure should be avoided
where a longer life of the burner, tubing and other parts is
desirable.
Failure to follow these instructions can cause damage to the
system components:
DO NOT high-pressure test the gas piping with the burners
connected. Failure to follow this procedure will exceed the
pressure rating of burner gas controls and this will require
complete replacement of these parts.
DO NOT operate a vacuum exhauster with an unrestricted
inlet. Operating a vacuum exhauster when not installed on
a system requires the use of a damper that is one-half
closed. An unrestricted airflow will overload the motor,
which can cause burnout or failure.
This heater is designed for heating nonresidential indoor
spaces. These instructions, the layout drawing, local codes
and ordinances, and applicable standards that apply to gas
piping, electrical wiring, venting, etc. must be thoroughly
understood before proceeding with the installation.
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Reflect-O-Ray®EDS-4DI & EHS-4DI Installation, Operation & Service
Page 2 Combustion Research Corporation
INSTALLER
PLEASE TAKE TIME TO READ AND UNDERSTAND THESE
INSTRUCTIONS PRIOR TO ANY INSTALLATION.Contact
your representative or the factory if you have any questions
OWNER
Retain this manual in a safe place to provide your
serviceman with information if the situation arises.
TABLE OF CONTENTS
PAGE(S)
WARNING SYMBOLS 1
STANDARDS, CERTIFICATIONS AND CODES 1 & 2
INSTALLER QULIFICATION & RESPONSIBILITY 2
INSTALLATION NOTES 3
TUBE LENGTH REQUIREMENTS 3 & 4
VACUUM EXHAUSTER SELECTION 4
CLEARANCE TO COMBUSTIBLES 5 - 7
SYSTEM INSTALLATION 8 & 9
SEISMIC RESTRAINT SUSPENSION 10
SUSPENSION METHODS 11
REFLECTOR INSTALLATION 12 & 13
DAMPER TYPES 14
DECORATIVE GRILLE INSTALLATION 15
RADIANT TUBE WALL PENITRATION 16
CONNECTING BURNER TO RADIANT TUBE 17
GAS SUPPLY 18 – 19
COMBUSTION AIR 20
VACUUM EXHAUSTERS 21 – 23
VENTING 24 – 27
ELECTRICAL WIRING & CONTROL PANELS 28 – 29
BURNER WIRING SCHEMATICS 31
BURNER TECHNICAL DATA 32
BURNER SETUP 33
SEQUENCE OF OPERATION 34 - 36
SYSTEM SHUT DOWN & MAINTENACE 37 - 40
TROUBLE SHOOTING FLOW CHART 41 & 42
BURNER PARTS LIST 43
VACUUM EXHAUSTER PARTS LIST 44 - 47
SYSTEM ACCESSORIES AND COMPONENTS 48 - 51
WARRANTY STATEMENT AND TERMS AND CONDITIONS 53 & 54
Reflect-O-Ray®heating systems DO NOT qualify for use in explosion proof installations.
Heaters SHALL NOT be used in living/sleeping areas.
©2009 COMBUSTION RESEARCH CORPORATION, INC.
All rights reserved. No part of this work covered by the copyrights hereon in may be reproduced or copied in any form or by
any means - graphic, electronic, or mechanical, including photocopying, recording, taping, or information storage and
retrieval systems - without written permission of COMBUSTION RESEARCH CORPORATION, Inc.

Reflect-O-Ray®EDS-4DI & EHS-4DI Installation, Operation & Service
Combustion Research Corporation Page 3
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Reflect-O-Ray®EDS-4DI & EHS-4DI Installation, Operation & Service
Combustion Research Corporation Page 1
WARNING SYMBOLS
WARNING
Warning indicates a potentially hazardous situation which,
if not avoided, could result in death or injury.
CAUTION
Caution indicates a potentially hazardous situation which,
if not avoided, could result in minor or moderate injury.
NOTICE
Notice indicates a potentially hazardous situation which, if
not avoided, could result in property damage.
CHECKING SHIPMENT
Upon receipt of shipment, check shipment against Bill of
Lading for shortages. Also check for external damage to
cartons or tube bundles. Shortages and/or external
damage to cartons or tubes must be noted on the Bill of
Lading in the presence of delivery trucker. The delivery
trucker should acknowledge any shortages or damage by
initialing this "noted" Bill of Lading.
Claims for damaged material, or shortages that were not
evident upon receipt of shipment must be reported to
carrier and Combustion Research Corporation Sales
Representatives within 72 hours.
Before starting to assemble the heater, make sure
that all optional and accessory items are accounted
for and are available for assembly. It is also
important to verify that the correct gas burner is
supplied for the gas service, i.e., natural gas burner
for natural gas supply.
IMPORTANT
WARNING
IMPROPER INSTALLATION
CAN CAUSE DEATH, SEVERE
INJURY AND/OR PROPERTY
DAMAGE.
Read and understand these installation, operating and
maintenance instructions thoroughly before installing or
servicing this equipment. Only trained, qualified gas
installation and service personnel may install or service
this equipment.
These instructions, the layout drawing, local codes and
ordinances, and applicable standards such as apply to gas
piping and electrical wiring must be thoroughly understood
before proceeding with the installation.
TESTED UNDER STANDARDS
AMERICAN STANDARDS – Z83.20-(current standard)
CANADIAN STANDARDS – CSA 2.34 - (current
standard)
GAS FIRED BROODERS - CAN 1-2.20-M85
BUILDING CODES
In the absence of local codes, the installation must
conform to the latest edition of:
United States: National Fuel Gas Code, ANSI Z223.1
(NFPA 54).
Canada: CAN/CGA B149.1 and .2, Canadian Electrical
Code C22.1
AIRCRAFT HANGERS
Heaters for use in aircraft hangers must be installed in
accordance with;
United States: Refer to Standard for Aircraft Hangars,
ANSI/NFPA 409 (latest edition).
In Canada: Refer to Standard CAN/CGA B149.1 and
B149.2 and applicable Standards for Aircraft Hangars.
Basic guidelines are as follows:
1. Suspended heaters in aircraft storage or service areas
shall be installed at least ten feet (10') above the upper
surface of wings or engine enclosures of the highest
aircraft which may be housed in the hanger. This should
be measured from the bottom of the heater to the wing or
engine enclosure, whichever is highest from the floor.
2. In other sections of aircraft hangers, such as shops or
offices communicating with airplane storage or servicing
area, heaters shall be installed in accordance with their
listings and mounted not less than eight feet (8') above the
floor.
3. Heaters installed in aircraft hangers shall be located so
as not to be subject to injury by aircraft, cranes, moveable
scaffolding or other objects. Provisions shall be made to
ensure accessibility to suspended heaters for recurrent
maintenance purposes.
PUBLIC GARAGES
Heaters for use in public garages must be installed
in accordance with:
United States: Standard for Parking Structures NFPA
88A (latest edition) or the Code for Motor Fuel
Dispensing Facilities and Repair Garages NFPA 30A
(latest edition).
Canada: Refer to CAN/CGA B149.1 and B149.2:
Installation Codes for Gas Burning Appliances and
applicable Standards for Public Garages.:
Basic guidelines are as follows:
1. Heaters shall be installed in accordance with their
listings and not be mounted less than eight feet (8') above
the floor. Minimum clearances to combustibles must be
maintained from vehicles parked below the heater.
2. When installed over hoists, clearance to combustible
material must be maintained from upper most point of the
hoist, or provided as insulating or reflective barrier on the
hoist (consult representative or factory for guidance).
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Reflect-O-Ray®EDS-4DI & EHS-4DI Installation, Operation & Service
Page 2 Combustion Research Corporation
ELECTRICAL GROUNDING
The burner and blower unit 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 furnished.
Canada: Refer to Canadian Electrical Code CSA C22.1
Part 1 (latest edition).
GAS INPUT LINES
The method of pipe sizing must conform to the U.S.
National Standards: ANSI Z223.1 (current standard)
National Fuel Gas Code or CAN 1-B149.1 Installation
Code, and should be installed in accordance with all
National and Local Codes and ordinances.
CLEARANCES AND ACCESSIBILITY
Inlet air assemblies are to be installed with the air opening
pointing toward the ground to protect against rain and
snow. Inlet is provided with a bird screen. Adequate
clearance must be provided around the inlet air assembly
opening to provide an unobstructed entry for the
combustion air. The air should be taken from outside the
building. Clearances must be sufficient to provide
accessibility for servicing. The air inlets must be a
minimum of six feet (6') from the exhaust port.
AGRICULTURAL INSTALLATIONS
In agricultural installations Reflect-O-Ray®heating
systems must be installed as vented systems only.
HAZARDOUS LOCATIONS
Where there is the possibility of exposure to combustible
airborne materials or vapor, consult the local Fire Marshal,
the fire insurance carrier, or other authorities for approval
of the proposed installation. Reflect-O-Ray®heating
systems DO NOT qualify for use in explosion proof
installations.
INSTALLER QUALIFICATIONS
Only firms or individuals qualified to perform work in
accordance with the applicable specifications should be
engaged to install a Reflect-O-Ray®system. Consult local
Building Inspectors, Fire Marshals, or the local applicable
Combustion Research Corporation representative for
guidance.
INSTALLER RESPONSIBILITY
Reflect-O-Ray®systems are installed on the basis of
information given in a layout drawing. Together with these
instructions and the cited codes and regulations comprise
the information needed to complete the installation. The
installer must furnish all needed material that is not
furnished as standard Reflect-O-Ray®equipment, and it is
his responsibility to see that such materials, as well as the
installation methods he uses result in a job that is
workman like and in keeping with all applicable codes.
In storage areas where stacking of materials may
occur, the installer must provide signs that specify the
maximum stacking height so as to maintain the
required clearance to combustibles.
GENERAL CONSIDERATIONS
Combustion Research Corporation Factory
Representatives are experienced in the application of this
equipment and can be called on for suggestions about
installation which can give the owner of the building a
more satisfactory and economical installation.
When installing the Reflect-O-Ray®system, take
maximum advantage of the building upper structure,
beams, Joists, purloins etc. from which to suspend the
system. Mount units at minimum height for ease of
installation and maintenance but of specified height to fully
utilize the building.
The general lay out of the Reflect-O-Ray®heating system
has been established by the engineering drawing. The
Reflect-O-Ray®heaters are used to heat building
structures as well as localized areas that would include
doors, loading docks and isolated workstations throughout
the building. The location of the Reflect-O-Ray®heaters
should be such that the area is covered uniformly, in that
the heat is positioned on the perimeter or to each side of
the area to be heated, rather than directly overhead. This
will give a better comfort condition for workers who would
be in these areas. Consult with your representative or the
factory for additional guidance in designing the optimum
layout for your project.
Reflect-O-Ray®is a suspended system, which requires
that consideration be given to the factors that determine its
stability, flexibility, safety, and satisfactory operation.
Before installation, the contractor should inspect the
building along with the owner (or engineer) responsible for
the building to check on the use of the building. Inspection
of the building including the use of floor space for storage
and height of materials stored in the building must be
noted so that there are no problems with clearances to
combustibles. Particular care should be taken over doors
and high objects such as busses, trucks, cranes, car lifts,
etc. Whenever possible use side wall penetrations for
combustion air inlets to burners and exhaust venting.
DO -
Maintain specified clearances to combustibles, and
to heat sensitive material, equipment, and
workstations.
Provide approved heat radiation shielding or
barriers if needed. Refer to the National Fuel Gas
Code for guidance.
Provide access for general servicing; provide easy
access for complete removal of burner and blower.
Familiarize yourself with local and national codes.
Develop a planned installation procedure, which
will conserve material and labor on the job. Check
to see that all material and equipment is on the job
before starting installation. Be sure to
accommodate thermal expansion of the hot tube.
Use the gas connector ONLY as shown in the
instructions.
Provide end clearance so tubing won't expand and
touch a wall or a structural member.

Reflect-O-Ray®EDS-4DI & EHS-4DI Installation, Operation & Service
Combustion Research Corporation Page 3
INSTALLATION NOTES
A. GENERAL INSTALLATION LAYOUT
1. Height from floor - 8' to 30' (refer to chart for
recommended minimum mounting heights). There are
no restrictions on the mounting height of the equipment
providing the design is based on the full heat loss of
the building. Consideration must be given to the
building heat loss so as to cover the air infiltration
and/or the mechanical ventilation of the building. For
serviceability and optimum performance the system
should be mounted with careful consideration to the
use of the building.
B. RADIANT TUBE ELEMENT LENGTHS FOR
STANDARD (EDS-4DI) SYSTEMS.
1.To dissipate maximum heat and avoid continuous
condensation in the radiant tube elements, each burner
will be provided with the minimum or maximum tube
lengths as outlined in the following chart. A heavy
walled 16 gauge aluminized steel tube (9'-9") long is
used adjacent to each burner. NOTE: Burners with
high fire inputs of 180,000 Btu/hr and higher use
one 16 gauge ALUMATHERM tube and one 16
gauge ALUMINIZED STEEL TUBE (swaged one
end). The remainder of the radiant tubing shall be of
spiral wound aluminized steel tube. Each single flow of
radiant tube shall incorporate an adjustable damper for
regulating burner airflow.
2.A multiple burner system consists of two or more
burners. Refer to the following charts for radiant tube
lengths and elbow and tee placement.
C. RADIANT TUBE ELEMENT LENGTHS FOR HIGH
OUTPUT (EHS-4DI) SYSTEMS.
1. To dissipate maximum heat and avoid continuous
condensation in the radiant tube elements, each burner
will be provided with the minimum tube lengths as
outlined in the following chart. A heavy walled 16-
gauge aluminized steel tube 9'-9” long is used adjacent
to each burner. On 180,000 Btu and higher units, a 10’
long 16-gauge alumatherm steel tube is used just
downstream of the burner and the next tube is a 9’-9”’
long 16-guage aluminized steel tube. The remainder
of the radiant tubing shall be of spiral wound
aluminized steel tube. Tee's must be installed after
any turbulator tube. Each single flow of radiant tube
shall incorporate an adjustable damper for regulating
burner airflow. NOTE: The radiant tubes for the
Reflect-O-Ray®EHS-4DI systems are heat treated for
optimum heat transfer
DESIGN TUBE LENGTH REQUIREMENTS
FOR OPTIMUM EFFICIENCIES
The dimensions in the table listed below are basic
guidelines used in the design of the Reflect-O-Ray®EDS-
4DI & EHS-4DI systems. Every effort should be made to
hold the dimensions given on the layout drawing. The
factory should verify any deviations from the layout
drawing or for alternate and/or customized layouts.
Burner BTU/hr
Input
(High Fire)
BTU/hr
Input
(Low Fire)
EDS-4DI Systems
Standard Output
Min. ft. (M) Max. ft. (M)
EHS-4DI Systems
Hi-Output Systems
Min. ft. (M) Max. ft. (M)
Min. Distance
From Burner to
Elbow
ft. (M)
Min. Distance
From Burner to
Damper or Tee
/Ft. (M)
08040.NG/LP.DI 40,000 28,000 30 45 20 35 10 10
08045.NG/LP.DI 45,000 31,000 30 45 20 35 10 10
08050.NG/LP.DI 50,000 35,000 30 45 20 35 10 15
08055.NG/LP.DI 55,000 38,000 30 50 20 45 10 15
08060.NG/LP.DI 60,000 42,000 30 50 20 45 10 20
08065.NG/LP.DI 65,000 45,000 30 60 20 45 10 20
08070.NG/LP.DI 70,000 48,000 40 60 25 50 10 20
08075.NG/LP.DI 75,000 52,000 40 60 25 50 10 20
08080.NG/LP.DI 80,000 55,000 40 60 25 50 15 25
08085.NG/LP.DI 85,000 57,000 40 60 30 50 15 25
08090.NG/LP.DI 90,000 62,000 40 60 30 50 15 25
08095.NG/LP.DI 95,000 65,000 40 60 30 60 15 25
08100.NG/LP.DI 100,000 70,000 50 70 30 60 15 25
08105.NG/LP.DI 105,000 73,000 60 80 40 80 15 25
08110.NG/LP.DI 110,000 76,000 60 80 40 80 15 25
08115.NG/LP.DI 115,000 79,000 50 70 30 70 15 25
08120.NG/LP.DI 120,000 83,000 50 70 30 70 15 30
08125.NG/LP.DI 125,000 86,000 50 70 40 70 15 30
08130.NG/LP.DI 130,000 90,000 50 70 40 70 20 30
08135.NG/LP.DI 135,000 93,000 60 80 40 70 20 30

Reflect-O-Ray®EDS-4DI & EHS-4DI Installation, Operation & Service
Page 4 Combustion Research Corporation
Burner BTU/hr
Input
(High Fire)
BTU/hr
Input
(Low Fire)
EDS-4DI Systems
Standard Output
Min. ft. (M) Max. ft. (M)
EHS-4DI Systems
Hi-Output Systems
Min. ft. (M) Max. ft. (M)
Min. Distance
From Burner to
Elbow
ft. (M)
Min. Distance
From Burner to
Damper or Tee
/Ft. (M)
08140.NG/LP.DI 140,000 97,000 60 80 40 70 20 30
08145.NG/LP.DI 145,000 100,000 60 80 40 70 20 30
08150.NG/LP.DI 150,000 104,000 60 80 40 70 20 40
08155.NG/LP.DI 155,000 107,000 60 80 40 80 20 40
08160.NG/LP.DI 160,000 110,000 60 80 40 80 20 40
08165.NG/LP.DI 165,000 114,000 60 80 40 80 20 40
08170.NG/LP.DI 170,000 117,000 60 80 40 80 20 40
08175.NG/LP.DI 175,000 121,000 70 90 40 80 20 40
08180.NG/LP.DI 180,000 124,000 70 90 40 80 20 40
08185.NG/LP.DI 185,000 128,000 70 90 50 80 20 40
08190.NG/LP.DI 190,000 131,000 70 90 50 80 20 40
08195.NG/LP.DI 195,000 135,000 70 90 50 80 20 40
08200.NG/LP.DI 200,000 138,000 70 100 50 80 25 40
08205.NG/LP.DI 205,000 142,000 70 100 50 80 25 40
08210.NG/LP.DI 210,000 145,000 70 100 50 90 25 40
08215.NG/LP.DI 215,000 149,000 70 100 50 90 25 40
08220.NG/LP.DI 220,000 152,000 70 100 50 90 25 40
08225.NG/LP.DI 225,000 155,000 70 100 50 90 25 40
08230.NG/LP.DI 230,000 159,000 70 100 50 90 30 40
08235.NG/LP.DI 235,000 162,000 70 100 50 90 30 40
08240.NG/LP.DI 240,000 166,000 70 100 50 90 30 40
08245.NG/LP.DI 245,000 169,000 70 110 50 90 30 40
08250.NG/LP.DI 250,000 173,000 70 110 50 90 30 40
VACUUM EXHAUSTER SELECTION
Recommended Maximum Number of Burners Per Vacuum Exhauster
(Note: The factory must be consulted for any deviations to the basic design criteria listed below)
BURNER ASSEMBLIES (NG or LP)
Vacuum Exhauster 08040- 08075 08080 - 08100 08105 - 08145 08150 - 08195 08200 - 08250
0402.040 8 6 6 4 4
0401.040 8 6 4 3 3
0201.040 4 3 2 2 2
0101.040 2 1 1 1 1
0103.040 2 1 1 1 1
0102.040 2 1 DNA DNA DNA
Burner inputs may be mixed with each system (vacuum exhauster). The total of all combined burner BTU
inputs, serviced by a single vacuum exhauster, shall not exceed the following:
Vacuum Exhauster Btu/hr Input Vacuum Exhauster Btu/hr Input
0402.040 900,000
0101.040 250,000
0401.040 675,000
0103.040 250,000
0201.040 450,000
0102.040 100,000
NOTE: The layout of the radiant tube system will have an effect on the total system BTU input per vacuum
exhauster. Consult with the factory or your representative if there are questions on how to layout a system or if
any deviations to the layout need to be made.

Reflect-O-Ray®EDS-4DI & EHS-4DI Installation, Operation & Service
Combustion Research Corporation Page 5
CLEARANCE TO COMBUSTIBLES
WARNING
Placement of explosive objects, flammable objects, liquids and vapors
close to the heater may result in fire, explosion, death and serious injury
or property damage. Do not store or use explosive objects, liquids and
vapor in the vicinity the heater.
In all situations the clearance to combustibles
must be maintained. Failure to observe
clearances to combustibles will result in death,
serious injury, or property damage. In storage
areas where stacking of materials may occur,
the installer must provide signs, which specify
the maximum stacking height so as to maintain
the required clearance to combustibles.
Minimum clearances must be maintained from
vehicles parked, below the heater. Ensure that
adequate clearance is maintained where vehicles
are in operation or being serviced. Consideration
must be given when running the radiant tube next to
wood, paper, storage racks, hoists, building
construction, etc. For building personnel safety, it is
recommended that the system not be mounted lower
than 9' from the floor unless fitted with protective
screens. The following illustrations and information
give minimum acceptable clearance to combustibles.
Horizontal Reflector
MODEL A B C D
08040 - 08055 4 41 12 12
08060 - 08075 4 50 24 24
08080 - 08100 4 60 29 29
08105 - 08125 4 76 34 34
08130 - 08150 4 83 38 38
08155 - 08175 6 85 40 40
08180 - 08200 6 91 44 44
08205 - 08225 8 96 46 46
A
BD
C
08230 - 08250 8 100 51 51
08040 – 08175 “B,C &D” Clearances can be reduced by 50% 25’ downstream of burner
08180 – 08250 “B,C &D” Clearances can be reduced by 50% 35’ downstream of burner
Angled Reflector - Max 45°
MODEL A B C D
08040 - 08055 6 41 4 36
08060 - 08075 6 45 4 40
08080 - 08100 6 66 4 54
08105 - 08125 6 76 4 66
08130 - 08150 6 86 6 73
08155 - 08175 6 89 6 77
08180 - 08200 12 94 9 81
08205 - 08225 12 96 12 88
C
A
D
B
08230 - 08250 12 100 12 92
08040 – 08175 “B &D” Clearances can be reduced by 50% 25’ downstream of burner
08180 – 08250 “B &D” Clearances can be reduced by 50% 35’ downstream of burner
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Reflect-O-Ray®EDS-4DI & EHS-4DI Installation, Operation & Service
Page 6 Combustion Research Corporation
One Side Shield Reflector
MODEL A B C D
08040 - 08055 4 45 6 34
08060 - 08075 4 45 6 34
08080 - 08100 4 72 6 42
08105 - 08125 4 72 6 45
08130 - 08150 4 86 6 62
08155 - 08175 6 89 8 68
08180 - 08200 8 93 8 72
08205 - 08225 8 93 12 72
A
BD
C
08230 - 08250 8 104 12 80
08040 – 08175 “B &D” Clearances can be reduced by 50% 25’ downstream of burner
08180 – 08250 “B &D” Clearances can be reduced by 50% 35’ downstream of burner
Two Side Shield Reflectors
MODEL A B C D
08040 - 08055 4 47 12 12
08060 - 08075 4 62 16 16
08080 - 08100 4 74 22 22
08105 - 08125 4 81 26 26
08130 - 08150 4 87 30 30
08155 - 08175 4 90 32 32
08180 - 08200 4 94 32 32
08205 - 08225 8 98 36 36
A
B
CD
08230 - 08250 8 107 39 39
08040 – 08175 “B” Clearances can be reduced by 50% 25’ downstream of burner
08180 – 08250 “B” Clearances can be reduced by 50% 35’ downstream of burner
Reflector Mounted Above 2-Foot Wide Decorative Grille
MODEL A B C D
08040 - 08055 4 41 12 12
08060 - 08075 4 50 24 24
08080 - 08100 4 60 29 29
08105 - 08125 4 76 34 34
08130 - 08150 4 83 38 38
08155 - 08175 6 85 40 40
08180 - 08200 6 91 44 44
08205 - 08225 8 96 46 46
A
B
CD
08230 - 08250 8 100 51 51
08040 – 08175 “B,C &D” Clearances can be reduced by 50% 25’ downstream of burner
08180 – 08250 “B,C &D” Clearances can be reduced by 50% 35’ downstream of burner

Reflect-O-Ray®EDS-4DI & EHS-4DI Installation, Operation & Service
Combustion Research Corporation Page 7
“U” BEND END CLEARANCE
“E”
Model No. “E”
“U” Bend With Reflector
Installed As Shown
Exposed “U” Bend Without
Reflector. Distance Measured
From Edge of Radiant Tube
08040 – 08060 8” 12”
08065 – 08100 12” 18”
08105 - 08175 18” 27”
08180 – 08250 25” 36”
UN-VENTED CLEARANCE
18”
18”
TOP

Reflect-O-Ray®EDS-4DI & EHS-4DI Installation, Operation & Service
Page 8 Combustion Research Corporation
SYSTEM INSTALLATION
WARNING
COLLAPSE, FIRE AND EXPLOSION HAZARD
Improper suspension of the tube heater may
result in collapse and being crushed. Always
suspend from a permanent and secure part of
the building structure that can evenly support
the total force and weight of entire the heating
system.
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
clearance signs where needed.
Combustion Research Corporation recommends that
Reflect-O-Ray ®EDS-4DI & EHS-4DI systems are hung by
means of chain. DO NOT STRETCH OR INSTALL CHAIN
OTHER THAN IN A VERTICAL FASHION WHEN
INITIALLY INSTALLED (BURNER NOT FIRING).
WARNING
DO NOT SUSPEND 1/4 HP AND LARGER
VACUUM EXHAUSTER BY CHAIN - USE
THREADED ROD, ANGLE IRON, ETC.
If chain is not supplied by Combustion Research
Corporation, furnish a chain with a minimum 90 lb. workload
(trade size #3 or larger).
CAUTION: This infrared tube system will expand and
contract upon each call for heat and allowances must be
made to accommodate this expansion.
Provisions must be made to limit lateral movement when
systems are installed in site conditions where open doors
may create a wind condition. See page 10 for details.
SUSPENSION COMPONENTS - Sub Assembly and
Installation
1. Using the system layout, beginning at the vacuum
exhauster position, determine location of suspension
points of system in relation to building structure, paying
close attention to dimensional limits as shown on page 8.
2. Determine suspension requirements for chain, wire rope,
beam clamps, etc. with the type of mounting hardware as
illustrated. Secure appropriate of each item before
starting installation. Suspension hardware may not be
furnished with this system.
3. If any suspension supports are to be anchored in
cement, drill and insert Acherman-Johnson stud anchors
(or equivalent) as required. DO NOT install anchors in
existing cracks or joints.
4. Determine suspension chain lengths and proceed to cut
and pre assemble suspension components.
NOTE: Each Reflect-O-Ray®EDS-4DI & EHS-4DI burner
assembly is equipped with a suspension point. Adjust as
required to keep the burner assembly level and square to
the radiant tubing.
5. Install beam clamps, eyebolts, etc. at predetermined
suspension locations - refer to the installation layout and
the illustration on page 10 of this manual for guidance.
IMPORTANT NOTE: If wind or sever air movement can be
encountered in the building (such as found in airplane
hangers where opposing doors are simultaneously open) or
if your area is prone to seismic activity, additional support of
the radiant tube and reflector network will be required. See
page 11 for details
RADIANT TUBE INSTALLATION
The Reflect-O-Ray®EDS-4DI & EHS-4DI radiant heating
system is sealed system. Therefore the heat radiant tubing
installation must be adhered to as outlined in this manual for
optimum performance as designed.
RECOMMENDED HANGER LOCATIONS
For 40K to 175K input systems, the first 10' section of
radiant tube (0404.AS.16 or 0404.16.HT) after the burner
should be supported and hung with 3 combination hangers.
For 180K to 250K input systems, the first 20' of radiant tube
(0404.AT.16 & 0404.16.AS) after the burner should be
supported and hung with 5 combination hangers
NOTE – THE WELD SEAM ON THIS FIRST (AND
SECOND IF PROVIDED) SECTION OF TUBE MUST BE
POSITIONED SO THAT IT IS ON THE BOTTOM OF THE
TUBE WHEN INSTALLED.
Weld Seam
Position Bottom of Tube
Burner Tube End View
The first hanger should be located approximately 5" from the
burner and the next two combination hangers shall be hung
on approximately 56" centers. The rest of the system
combination hangers may be hung on approximately 9'-10"'
centers with intermediate reflector supports placed halfway
between hangers. Each reflector should be supported at
two points, either with two combination hangers or with one
combination hanger and an intermediate support
NOTE: When a vertical rise of tube is necessary, use a
combination hanger (P.N. 0464.00) at both the lower
horizontal run hanger and at the upper horizontal run. If the
vertical run exceeds ten feet (10') a midway support must be
installed. This support may be secured to a wall, beam or
fabricated support. It is recommended that the vertical run
not exceed twenty-five feet (25').
!
!

Reflect-O-Ray®EDS-4DI & EHS-4DI Installation, Operation & Service
Combustion Research Corporation Page 9
Radiant Tube Sub-Assembly:
CAUTION
CUT HAZARD - SHARP EDGES.
Wear protective gloves when installing and handling
and cutting radiant tubes. Failure to follow these
instructions will result in personal injury.
If is recommend that a maximum of twenty-foot lengths of
radiant tube and possibly an elbow be assembled on the
floor before raising into position.
Experience has shown that it is best to start laying out the
system from the exhauster end, although this is not a
requirement. Avoid small segments that cannot be
supported properly according to the instructions in this
manual.
1. Apply sealer sparingly from the tube furnished to the
outside of the heat tube coupler, elbows, and other
fittings.
NOTE: Failure to use sealer can result in loss of vacuum.
A
pply sealer sparingly to
outside of cou
p
ler
Placement of screws @
a
pp
roximatel
y
120°
2. Secure joint with sheet metal screws to provide a
mechanical joint rather than rely on friction. Use damp
cloth to remove excess sealer. Heat tube and fitting
assembly ends are designed for minimum clearance and
tight fitting to minimize air in filtration.
3. Insert coupler inside tube section. Be sure the radiant
tube is butted up tightly against the stop rim in the middle
of the coupler. Note: Tolerances are closely controlled at
this point to insure as tight a joint as possible. At this
point make sure that radiant tube sections to be joined
are straight and in line.
4. Attach combination hanger (0464.00) to the radiant tube
at dimensional support locations as outlined in this
manual. Combination hangers should be positioned so
that the locking loop (45° suspension point) faces the
same direction. Combination hanger’s (0464.00) shall
be positioned at all elbows and tee’s so as to provide
support for the adjoining reflector.
5. Position the intermediate reflector supports (0465 .00)
between the combination hangers illustrated below.
6. Using two or more men, raise the length of pre
assembled tube sections up to suspension height, and
using "S" hooks or turnbuckles attach tube hangers to
suspension hardware.
7. Check to be sure all suspension hardware, chain, wire
rope, etc., is hanging straight. Reposition hangers where
necessary until suspension is straight.
8. Adjust suspension length until heat tube is straight and in
line. If possible, heat tube should be parallel with floor.
9. Proceed in manner described above to complete
hanging the remainder of the radiant tubes as described
and detailed in this owner's manual and the layout
drawing.
NOTE: Review system layout carefully before any cutting
radiant tube. If cuts are not made where shown, radiant
tube lengths may be short and require additional tube
couplers to complete the project.
When cutting radiant tubes, deburr with a file to remove
sharp edges and facilitate easier assembly with the
couplers.
10.Make final check to be sure heat tube is straight and in
line before installing reflectors as illustrated on page 12
and 13.
40k to 175k High Fire Inputs
180k to 250k High Fire Inputs
5" 58" 58" 59" 118" 59" 118"
Hanger Hanger Hanger HangerSupport Support Hange
r
5" 59" 59" 59" 118"
Hange
r
Hanger Hange
r
Hanger Support Hanger
Hange
r
59"59"
0404.AT.16
–
Alumatherm Tube 0404.AS.16
–
Aluminized Tube
0404.AS.16
–
Aluminized Tube
!

Reflect-O-Ray®EDS-4DI & EHS-4DI Installation, Operation & Service
Page 10 Combustion Research Corporation
SUSPENSION METHODS
System shall be suspended by chain (trade size #3 or
larger), wire rope, etc., minimum workload of 90 Lbs. All
suspension hardware must be corrosion resistant. For fine
adjustment turnbuckles may be used.
NOTES:
•DO NOT HANG ¼ HP AND LARGER VACUUM
EXHAUSTER WITH CHAIN – USE THREADED ROD.
•SECURE TURNBUCKLES WITH A WIRE OR JAM NUT
SO THAT THEY WILL NOT UNWIND OR UNSCREW.
•CRIMP "S" HOOKS CLOSED BEFORE LEAVING JOB.
•LISTED MATERIALS ARE MINIMUM REQUIRED,
USE EQUIVALENT OR BETTER MATERIALS
Beam Clamp
Threaded Rod
and Turn Buckle Secure turnbuckle
with JAM nuts or wire
to prevent unwinding
Chain
Beam Clamp
Chain
Chain
Beam
Wood BeamConcrete
Beam Eye Bolt Screw
with Washer and
Locknut
Suitable Expansion
Anchor
All ”S” Hooks MUST Be
Manually Closed By
Installer
Bar Clamp

Reflect-O-Ray®EDS-4DI & EHS-4DI Installation, Operation & Service
Combustion Research Corporation Page 11
SEISMIC RESTAIANT SUSPENSION METHODS
For standard seismic restraint such as earthquake prone
areas, install seismic restraint chain or cable as shown
below. If high winds can be encountered in the building,
such as found in airplane hangers where opposing doors
are simultaneously open, or system is installed near or
below the door opening, additional support of the radiant
tube and reflector network will be required. See the
“Seismic Suspension For High Wind or Outdoor
Applications” below for details. If there are any questions
regarding what method is best suited for your application
consult your sales representative or contact the factory.
STANDARD SEISMIC SUSPENSION
Seismic Restraints – Use chain
or 1/8” aircraft cable.
Cable Clamp – Clamp tight to
prevent chain or cable from
sliding on hanger.
30-45° 30-45°
SEISMIC SUSPENSION FOR HIGH WIND OR OUT DOOR APPLICATIONS
Seismic Restraints – Use
chain or 1/8” aircraft cable.
3/8” Jam Nut
3/8” “U” bolt for threaded
rod. Install at each hanger
location.
Cable Clamp – Clamp tight
to prevent chain or cable
from sliding on hanger.
“3/8” “U” Bolt
Side Vie
w
3/8” Threaded Rod
3/8” Jam Nuts
A
djustable beam
clamp or “U” bolt with
chair anchor.
Typical Turnbuckle (If
Used). To prevent possible
unwinding use jam nuts.
3/8” Jam Nuts
Extend threaded rod
so that there is 1/8”
clearance to the
han
g
er.
30-45°
Punch or drill a small hole in the reflector near the hanger.
Insert 14 Ga. wire through the hole and encircle the
hanger. Twist ends together while maintaining a loose loop.
“Hog Rings” may also be used.
30-45°

Reflect-O-Ray®EDS-4DI & EHS-4DI Installation, Operation & Service
Page 12 Combustion Research Corporation
REFLECTOR INSTALLATION
CAUTION
CUT HAZARD - SHARP EDGES.
Wear protective gloves when installing and handling
and cutting reflectors. Failure to follow these
instructions will result in personal injury.
Heat tube combination hangers are an integral part of the
reflector support system. Improperly installed heat tube
hangers will distort reflectors and result in an undesirable
appearance of the entire system.
Check to be sure all combination hangers and intermediate
supports are hanging straight. Tubes must be straight and
in line before installing reflectors.
Install reflector elbows and "tees" where required.
1. Starting from burner slide reflector through tube hanger
until end stops against drawband coupler. Nearest the
burner, attach reflector end cap to with 4 sheet metal
screws.
2. Adjust position of reflector supports so that reflector is
held level and parallel with heat tube. Where possible,
position one support at overlapped ends of reflectors.
3. Using same procedure, continue to install reflector
sections until entire system is complete. Make sure
each reflector section is overlapped a minimum of 1 -2"
and secured as outlined on page 13.
4. When last section of reflector has been installed, inspect
heat tube and reflector assembly as follows:
a. Check to be sure all heat tubes are straight and in
line. Adjust suspension when necessary.
b. Make sure all radiant tube joints are properly
aligned, sealed, and secured.
c. Check all heat tube suspension points, clamps,
turnbuckles, lock nuts, etc. are in place and tight.
All suspension chain should be hanging straight
down.
d. Check all reflector joints for minimum 1 - 2" overlap.
e. Overlapped joints are secured with sheet metal
screws. Make sure expansion joint is in every
straight run - see page 13.
f. Check all reflector hangers and supports for location
and make sure reflectors are straight and in line.
g. Make sure all combination hanger hooks are closed.
PERIMETER MOUNTING
In areas of high heat loss such as doorways and the
perimeter of some buildings, it may be desirable to install
the reflectors so that heat is concentrated and directed to a
specific area rather than straight down. Two options are
available to accomplish this, 1) install side shields or 2)
angle mount the reflector.
SIDE SHIELD INSTALLATION
Optional side shield reflectors (PN 0366.00) may be
installed on either side or both sides of the reflector. The
10-ft. (3 m) long side shields should line up with a reflector
and have identical overlap and expansion joints.
1. Position the side shield reflector next to the reflector, and
mark the areas where relief notches must be cut.
2. Cut the appropriate relief notches as noted.
3. Secure the side shield to the reflector with #8 x 3/8"
sheet metal screws. The screws should be used
approximately every 36" (91 cm).
4. Install the side shield supports (P/N 0366.0050) every
five feet (5’)
5. An expansion joint must be used in each straight run.
This expansion joint should match the location of the
expansion joint for the reflectors. All overlap areas
should also match the reflector overlap.
In applications where excessive air movement is
encountered, such as open doors and the like, the Side
Shields should be fastened together with 2 sheet metal
screws at each overlap joint. NOTE: DO NOT screw the
expansion joints together.
FIELD FAB
RELIEF NOTCH
SECURE WITH
S/M SCREW
SECURE
SIDE SHIELD
HANGER WITH
S/M SCREW
SECURE SIDE
SHIELD SUPPORT
(P/N 0366.0050)
TO TUBE WITH
S/M SCREW
REFLECTOR ANGLE MOUNTING
The combination hangers are designed so that the
suspension hardware can be attached either in the center or
to one side that will position the tube and reflector assembly
up to a maximum 45° angle. This angle can be reduced if
required by use of a tie strap.
Maximum Mounting
A
ngle - 45°
!

Reflect-O-Ray®EDS-4DI & EHS-4DI Installation, Operation & Service
Combustion Research Corporation Page 13
REFLECTOR ELBOW CONNECTION
Reflector Elbow
Secure To Connecting Reflector
With Sheet Metal Screws
REFLECTOR TEE CONNECTION
Use Sheet Metal Screws To Secure
"Tee" In Place
Field Cut Reflector To Provide
Clearance For Radiant Tube
Reflector TEE
For "X" fittings (PN 0404.AS.X) use the same technique
shown, cutting and another relief hole on the opposite side
of the reflector and installing a second reflector tee.
TYPICAL REFLECTOR LAYOUT WITH
EXPANSION JOINTS
An expansion joint consists of a reflector overlap without
being secured together. This allows for freedom of
movement during heat up and cool down. Expansion joints
are to be placed at approximately the center of each straight
run of reflectors with a maximum of three (3) reflectors
connected together. Additional expansion joints in each
straight run may be necessary.
All other reflector joints, reflector elbows and reflector tee's
should be overlapped 1 - 2" and sheet metal screwed
together, DO NOT position an expansion joint at an elbow or
tee.
Burner
Building
Wall
Vacuum
Exhauste
r
Expansion
Joint
Expansion
Joint
Expansion
Joint

Reflect-O-Ray®EDS-4DI & EHS-4DI Installation, Operation & Service
Page 14 Combustion Research Corporation
DAMPER TYPES
Damper assemblies are to be installed as per layout
drawing. Each burner flow must be equipped with a damper
assembly so that accurate vacuum settings can be made.
NOTE: Install all damper handles so that they face
downward. The damper handle can be rotated by removing
the two nuts, which hold the blade, and setting plate in
place. Rotate 180° and reassemble - take care so as not to
"strip out" handle. When turning the damper handle the
retaining spud on the opposite side should rotate
simultaneously.
0407.AS.B - Dam
p
er TEE
Single
Burner Flow
To Vacuum Exhauster
Single
Burner Flow
0407.AS.C - Dam
p
er
Single
Burner Flow
To Vacuum Exhauste
r
Single
Burner Flow
Install Handle On Side Or Bottom Of Tube
(
Position locatin
g
holes as shown
)
0441.00 DAMPER ASSEMBLY
NOTE: The 0441.00 damper assembly is used with single
burner systems and when DAMPER TEE'S are not practical.
0407.AS.XB - "X" Fitting With Dampers
To Vacuum
Exhauster
From Upstream
Burner Flow
(
s
)
Single
Burner Flo
w
Single
Burner Flow
0407.AS.XC - "X" Fitting With Dampers
From Upstream
Burner Flow
To Vacuum
Exhauster
Single
Burner Flow
Single
Burner Flow

Reflect-O-Ray®EDS-4DI & EHS-4DI Installation, Operation & Service
Combustion Research Corporation Page 15
DECORATIVE GRILLE INSTALLATION
CAUTION
CUT HAZARD - SHARP EDGES.
Wear protective gloves when installing and handling
aluminum decorative grille and side shields. Failure to
follow these instructions will result in personal injury.
When installing the heating system above a suspended
ceiling, decorative grille must be used directly beneath the
radiant tube system. The use of regular ceiling tiles directly
beneath the radiant tube will create an unsafe condition.
The decorative grille provides an attractive finish to the
system when installed over a suspended ceiling. The
aluminum Decorative Grille (PN 0369.00) comes in standard
2 ft. x 4 ft. (60 cm x 120 cm) sections and is installed in
place of the ceiling tile. The decorative grill should extend
completely under all of the radiant tube as well as the burner
assembly.
The radiant tube is suspended in normal fashion, preferably
centered over the decorative grille. The radiant tube must
be installed, as shown below, with a minimum distance from
the radiant tube to the decorative grille of 6" (15.2 cm) to a
maximum of 10" (25.4 cm).
"T" bar heat shields (PN 0369.21) must be installed over
ceiling "T" frame members that pass underneath the radiant
tube. The Decorative Grille Side Shield reflector (PN
0369.11) is available in 10-ft. (3 m) lengths. Lay the side
shield along the standard reflector and cut suitable notches
for the reflector hangers and "T" bar sections. As sharp
edges can be encountered when working the aluminum
decorative grille and side shields, gloves should be worn.
"T" Bar Heat Shield
P.N. 0369.21 Suspended Ceiling "T" Bar Framing
Decorative Grille
2 ft. (60 cm) Wide
Decorative Grille
Side Shield (10’ Long)
P.N. 0369.11
Reflector and
Radiant tube
Cut Relief Notches in Side Shield to
A
ccommodate Tube & Reflector Hangers
!

Reflect-O-Ray®EDS-4DI & EHS-4DI Installation, Operation & Service
Page 16 Combustion Research Corporation
WALL PENETRATIONS
WARNING
FIRE HAZARD
IMPROPER INSTALLATION CAN CAUSE
DEATH, SEVERE INJURY AND/OR
PROPERTY DAMAGE.
Refer to the following instructions as well as the
engineering drawing for proper installation of the
Reflect-O-Ray®EDS-4DI & EHS-4DI System.
INSTALLATION:
Installation must comply with local building codes, or in the
absence of local code, with the National Fuel Gas Code,
ANSI Z223.1- (current standard) - same as NFPA Bulletin
No. 54 for the United States and the CAN/CGA B149
(current standard) for Canada.
1. The wall penetration must be a minimum of:
a. 20' downstream of the burner for high fire inputs of
40,000 to 75,000 Btu/hr.
b. 25' downstream of the burner for high fire inputs of
80,000 to 125,000 Btu/hr.
c. 35' downstream of the burner for high fire inputs of
130,000 to 175,000 Btu/hr.
d. 45' downstream of the burner for high fire inputs of
180,000 to 250,000 Btu/hr.
2. A wall thimble suitable for 6", Type "L" vent (or better)
must be used.
3. Use an all-steel 6" type "L" vent duct (or better). The 6"
vent assembly must extend a minimum of 18" on either
side of the wall. Secure the 6" type "L" vent to the wall
thimble with sheet metal screws.
4. The Reflect-O-Ray®radiant tube should be positioned so
that it passes through the middle or center of the 6" type
"L" vent duct.
5. The reflectors, which are fitted with end caps, shall be
within one inch of the end of the 6" type "L" vent duct.
NOTE: The illustration below depicts a penetration
through a non-combustible wall. For penetrations
through combustible walls contact the factory for
guidance.
Min. 18"
Install Reflecto
r
End Cap
Reflector
6" - "L" Vent - Use only
all steelconstruction
Install Reflector
End Cap
Reflector
Min. 18"
6" - "L" Vent
!