L.B. White H-17 Manual

Attention
This heater has been tested
and evaluated by L.B. White
Company, LLC as a direct
gas-fired radiant heater with
intended use for the heating
of livestock in agricultural
animal confinement buildings.
If you are considering using
this product for any application
other than its intended use,
then please contact your fuel
gas supplier, or the L.B. White
Company, LLC.
www.lbwhite.com
SCAN THIS
with your smartphone or
visit http://goo.gl/uqadY to
view maintenance videos
for L.B.White heaters.
WORLD PROVIDER - INNOVATIVE HEATING SOLUTIONS
411 Mason Street, Onalaska, WI 54650 • 800-345-7200 • 608-783-5691 • 608-783-6115 (fax) • www.lbwhite.com
Congratulations!
You have purchased the finest radiant heater available for the
heating of livestock in agricultural animal confinement buildings.
Your new L.B. White radiant heater incorporates the benefits
from the most experienced manufacturer of heating products
using state-of-the-art technology.
We, at L.B. White, thank you for your confidence in our products
and welcome any suggestions or comments you may have...call
us toll free at 1-800-345-7200.
Propane Vapor Withdrawal
or Natural Gas
H-17
High Pressure
Radiant Heater
H-17 17,000 Btuh
Owner’s Manual and Instructions
View this manual online at www.lbwhite.com
* Requires an app like QR Droid
for Android or for iPhone
SEE ASSEMBLY
INSTRUCTIONS
INSIDE
Please refer to important
elevation information on
inside cover.

H-17 • Radiant Heaters
www.lbwhite.com
Owner’s Manual • H-17
2
TABLE OF CONTENTS
Heater Specifications.....................................................................................................................................4
General Information.......................................................................................................................................5
Safety Precautions ........................................................................................................................................6
Installation Instructions
General ........................................................................................................................................................9
Gas Hose Assembly....................................................................................................................................12
Dust Filter ....................................................................................................................................................13
Lighting and Shut Down Instructions...........................................................................................................14
Cleaning Instructions
A. Heater.......................................................................................................................................15
B. Filter..........................................................................................................................................15
Maintenance Instructions.............................................................................................................................16
Service Instructions
General ......................................................................................................................................................16
Burner Orifice ..............................................................................................................................................17
Safety Control Valve....................................................................................................................................17
Thermocouple..............................................................................................................................................17
Gas Pressure Checks..................................................................................................................................18
Troubleshooting Guide ................................................................................................................................19
Heater Component Function .......................................................................................................................23
Parts Identification
Parts Schematic and Parts List................................................................................................24/25
Warranty Policy............................................................................................................................................26
Replacement Parts and Service..................................................................................................................26
WARNING
Standard products are manufactured to operate at optimum efficiency at
elevations between 0 and 2000 ft. (0-610m) above sea level.
If operated at higher elevations the product will not function correctly and may
function in an unsafe nature. Products providing proper operation for alternate
elevations may be available.
If you require a high elevation product, did not specify when ordering, and/or
the box this unit came in does not have an alternate altitude designation
sticker please contact technical support.

H-17 • Radiant Heaters
Owner’s Manual • H-17
3
WARNING
FIRE, BURN, INHALATION, AND
EXPLOSION HAZARD
■KEEP SOLID COMBUSTIBLES A SAFE DIS-
TANCE AWAY FROM THE HEATER.
■SOLID COMBUSTIBLES INCLUDE WOOD,
PAPER PRODUCTS, FEATHERS, STRAW AND
DUST.
■DO NOT USE THE HEATER IN SPACES WHICH
CONTAIN OR MAY CONTAIN VOLATILE OR
AIRBORNE COMBUSTIBLES.
■VOLATILE OR AIRBORNE COMBUSTIBLES
INCLUDE PIT GASES, GASOLINE, SOLVENTS,
PAINT THINNER, DUST PARTICLES OR UN-
KNOWN CHEMICALS.
■FAILURE TO FOLLOW THESE INSTRUCTIONS
MAY RESULT IN A FIRE OR EXPLOSION.
■FIRE OR EXPLOSIONS CAN LEAD TO
PROPERTY DAMAGE, PERSONAL INJURY OR
DEATH.
FOR YOUR SAFETY
If you smell gas:
1. Open windows.
2. Don’t touch electrical switches.
3. Extinguish any open flame.
4. Immediately call your gas supplier.
FOR YOUR SAFETY
Do not store or use gasoline or other flam-
mable vapors and liquids in the vicinity of this
or any other appliance.
GENERAL HAZARD WARNING
■FAILURE TO COMPLY WITH THE PRECAUTIONS AND INSTRUCTIONS PROVIDED WITH
THIS HEATER CAN RESULT IN:
— DEATH
— SERIOUS BODILY INJURY OR BURNS
— PROPERTY DAMAGE OR LOSS FROM FIRE OR EXPLOSION
— ASPHYXIATION DUE TO LACK OF ADEQUATE AIR SUPPLY OR CARBON MONOXIDE
POISONING
— ELECTRICAL SHOCK
■READ THIS OWNER’S MANUAL BEFORE INSTALLING OR USING THIS PRODUCT.
■ONLY PERSONS WHO CAN READ, UNDERSTAND, AND FOLLOW THE INSTRUCTIONS
SHOULD USE OR SERVICE THIS HEATER.
■SAVE THIS OWNER’S MANUAL FOR FUTURE USE AND REFERENCE.
■OWNER’S MANUALS AND REPLACEMENT LABELS ARE AVAILABLE AT NO CHARGE. SEE
WEBSITE, OR FOR ASSISTANCE, CONTACT L.B. WHITE AT 1-800-345-7200.
WARNING
■PROPER GAS SUPPLY PRESSURE MUST BE PROVIDED TO THE INLET OF THE HEATER.
■REFER TO DATA PLATE FOR PROPER GAS SUPPLY PRESSURE.
■GAS PRESSURE IN EXCESS OF THE MAXIMUM INLET PRESSURE SPECIFIED AT THE
HEATER INLET CAN CAUSE FIRES OR EXPLOSIONS.
■FIRES OR EXPLOSIONS CAN LEAD TO SERIOUS INJURY, DEATH, OR BUILDING
DAMAGE.
■GAS PRESSURE BELOW THE MINIMUM INLET PRESSURE SPECIFIED AT THE HEATER INLET
MAY CAUSE IMPROPER COMBUSTION.
■IMPROPER COMBUSTION CAN LEAD TO ASPHYXIATION OR CARBON MONOXIDE POISON-
ING AND THEREFORE SERIOUS INJURY OR DEATH.
WARNING
FIRE AND EXPLOSION HAZARD
■NOT FOR HOME OR RECREATIONAL VEHICLE USE.
■INSTALLATION OF THIS HEATER IN A HOME OR RECREATIONAL VEHICLE MAY RESULT IN A
FIRE OR EXPLOSION.
■FIRE OR EXPLOSIONS CAN CAUSE PROPERTY DAMAGE OR LOSS OF LIFE.
WARNING
Cancer and reproductive harm.
See www.P65Warnings.ca.gov.

H-17 • Radiant Heaters
www.lbwhite.com
Owner’s Manual • H-17
4
Specifications
(1) There are other factors that will affect the quantity of animals each heater can cover. These include building
ventilation and control systems, building insulation, building size and population density, etc. Consult your L.B.
White dealer or call L.B. White for specific recommendations for your application.
(2) This is a typical sensor height range for poultry installations. The size and type of livestock being grown, heater
spacing and height, etc. will dictate sensor height. Care should always be taken to ensure that the sensor is
sufficiently high as to not be damaged by the animal during operation.
Model
Maximum Input (btu/h) 17,000
Ventilation Air to Support Combustion (cfm) 200
Full Output Pressure (psig) Propane Gas or Natural Gas 5
Low Heat Pressure (in. W.C.) Propane Gas or Natural Gas 8
Fuel Consumption Per Hour Propane Gas (lbs.) .79
Natural Gas (Cubic Ft.) 17
Animal Coverage Per Heater (1) 100
Recommended Height Installation for Livestock from Point of Combustion
Cone to Floor (ft.)
4-5
Minimum Safe Clearances to
Combustible Materials (ft.)
Top of Hood to Ceiling 3
Emitter to floor 3.5
Sides 3
Animal Occupied Zone Temperature Control
Sensor Location
Vertical From Floor Above animal
height
Horizontal from
Brooder
4-8 ft.

H-17 • Radiant Heaters
Owner’s Manual • H-17
5
This Owner’s Manual includes all options and acces-
sories commonly used on this heater. When calling
for technical service assistance, or for other
specific information, always have model number,
configuration number and serial number available.
This information is contained on the dataplate.
This manual will instruct you in the operation and
care of your unit. Have your qualified installer review
this manual with you so that you fully understand the
heater and how it functions.
The gas supply line installation, installation of the
heater, and repair and servicing of the heater requires
continuing expert training and knowledge of gas
heaters and should not be attempted by anyone who
is not so qualified.
Contact your local L.B. White distributor or the L.B.
White Company, LLC for assistance, or if you have
any questions about the use of the equipment or its
application.
The L.B. White Company, LLC has a policy of con-
tinuous product improvement. It reserves the right to
change specifications and design without notice.
General Information
Heater Dimensions
FIG. 1
4.25 in.
12 in.
20 in.

H-17 • Radiant Heaters
www.lbwhite.com
Owner’s Manual • H-17
6
Propane gas and natural gas have man-made odor-
ants added specifically for detection of fuel gas leaks.
If a gas leak occurs, you should be able to smell the
fuel gas .
THAT’S YOUR SIGNAL TO GO INTO IMMEDIATE
ACTION!
■Do not take any action that could ignite the fuel
gas. Do not operate any electrical switches. Do not
pull any power supply or extension cords. Do not
light matches or any other source of flame. Do not
use your telephone.
■Get everyone out of the building and away from the
area immediately.
■Close all propane gas tank or cylinder fuel supply
valves, or the main fuel supply valve located at the
meter if you use natural gas.
■Propane gas is heavier than air and may settle in
low areas. When you have reason to suspect a
propane leak, keep out of all low areas.
■Use your neighbor’s phone and call your fuel gas-
supplier and your fire department. Do not re-enter
the building or area.
■Stay out of the building and away from the area
until declared safe by the firefighters and your fuel
gas supplier.
■FINALLY, let the fuel gas service person and the
firefighters check for escaped gas. Have them
air out the building and area before you return.
Properly trained service people must repair the
leak, check for further leakages, and then relight
the appliance for you.
■Some people cannot smell well. Some people
cannot smell the odor of the man-made chemi-
cal added to propane or natural gas. You must
determine if you can smell the odorant in these
fuel gases.
■Learn to recognize the odor of propane gas and
natural gas. Local propane gas dealers and your
local natural gas supplier (utility) will be more than
happy to give you a “scratch and sniff” pamphlet.
Use it to become familiar with the fuel gas odor.
■Smoking can decrease your ability to smell. Being
around an odor for a period of time can affect your
sensitivity to that particular odor. Odors present in
animal confinement buildings can mask fuel gas
odor.
■The odorant in propane gas and natural gas is col-
orless and the intensity of its odor can fade under
some circumstances.
■If there is an underground leak, the movement of
gas through the soil can filter the odorant.
■Propane gas odor may differ in intensity at different
levels. Since propane gas is heavier than air, there
may be more odor at lower levels.
■Always be sensitive to the slightest gas odor. If you
continue to detect any gas odor, no matter how
small, treat it as a serious leak. Immediately go into
action as discussed previously.
Fuel Gas Odor
Safety Precautions
Odor Fading - No
Odor Detected
WARNING
Asphyxiation Hazard
■Do not use this radiant heater for heating human living quarters.
■Do not use in unventilated areas.
■The flow of combustion and ventilation air must not be obstructed.
■Proper ventilation air must be provided to support the combustion air requirements of the heater
being used.
■Refer to the specification section of the Owner’s Manual, heater’s dataplate, or contact the LB
White Company to determine combustion air ventilation requirements of the heater.
■Lack of proper ventilation air will lead to improper combustion.
■Improper combustion can lead to carbon monoxide poisoning in humans leading to serious injury
or death. Symptoms of carbon monoxide poisoning can include headaches, dizziness and difficulty
in breathing.
■Symptoms of improper combustion affecting livestock can be disease, lower feed conversion,
or death.

H-17 • Radiant Heaters
Owner’s Manual • H-17
7
■Propane gas and natural gas have a distinctive
odor. Learn to recognize these odors. (Reference
“Fuel Gas Odor” and “Odor Fading” sections
above.
■If you have not been properly trained in repair and
service of propane gas and natural gas fueled
heaters, then do not attempt to light the heater,
perform service or repairs, or make any adjust-
ments to the heater on a propane gas or natural
gas fuel system.
■Even if you are not properly trained in the service
and repair of radiant heaters, ALWAYS be con-
sciously aware of the odors of propane gas and
natural gas.
■A periodic “sniff test” around the heater or at the
heater’s joints; i.e. hose, connections, etc., is a
good safety practice under any conditions. If you
smell even a small amount of gas, CONTACT
YOUR FUEL GAS SUPPLIER IMMEDIATELY. DO
NOT WAIT!
1. Do not attempt to install, repair or service this
heater or the gas supply line unless you have
continuing expert training and knowledge of gas
heaters.
QUALIFICATIONS FOR SERVICING AND
INSTALLATION:
a. To be a qualified gas heater service person, you
must have been trained in gas-fired heater servic-
ing, repair and also have sufficient experience to
allow you to troubleshoot, replace defective parts,
and test heaters in order to get them into a continu-
ing safe and normal operation condition. You must
completely familiarize yourself with each model
heater by reading and complying with the safety
instructions, labels, owner’s manual, etc. that is
provided with each heater.
b. To be a qualified gas installation person, you must
have sufficient training and experience to handle
all aspects of installing, repairing and altering gas
lines, including selecting and installing the proper
equipment, and selecting proper pipe size to be
used. This must be done in accordance with all
local, state and national codes as well as the
manufacturer’s requirements.
2. All installations or applications of L. B. White Co.,
Inc.’s radiant heater shall meet the requirements
of local, state and national L.P. gas and natural
gas, electrical and safety codes. Your gas supplier,
local licensed electrician, local fire department
and government agencies can help you determine
these requirements. In the absence of local codes,
comply with the following:
-- ANSI/NFPA 58, latest edition, Standard for Storage
and Handling of Liquefied Petroleum Gas and/or
-- ANSI Z223.1/NFPA 54, National Fuel Gas Code
-- ANSI/NFPA 70, National Electrical Code.
3. If at any time you notice something unusual about
the operation of your heater such as gas odor,
overheating, flames other than in the emitter area,
etc., evacuate the area immediately and call your
fire department and your gas service agency. Get
assurances from the fire department that the area
is free of gas before you attempt to relight the
heater.
4. The components on the heater that call for hand
operation should work with hand pressure only. If
more force is required, have a qualified gas heater
service agency replace the complete part. Do not
attempt to repair.
5. This heater is intended for the heating of livestock
in agricultural animal confinement buildings only.
The heater shall only be mounted inside the animal
confinement building. It shall not be used for
outside heating applications.
6. Do not locate fuel gas containers or fuel supply
hoses anywhere within the heating zone of the
heater.
7. Do not block the air intake, or burner emitter area.
Doing so may cause improper combustion or
damage to the heater components, leading to
property damage or animal loss.
8. Do not move, handle, or service the heater while in
operation or connected to fuel supply.
9. The hose assembly must be inspected on a regular
basis. This should be done at least once a year,
or when the building is cleaned out. If it is evident
there is excessive abrasion or wear, or if the hose
is cut, it must be replaced prior to heater being
Attention - Critical
Points to Remember!

H-17 • Radiant Heaters
www.lbwhite.com
Owner’s Manual • H-17
8
put into operation. The hose assembly shall be
protected from animals, building materials, and
contact with hot surfaces during use. The replace-
ment hose assembly shall be that specified by the
manufacturer. See parts list.
10. Check for gas leaks and proper function upon
installation, before building repopulation and
when relocating.
11. If the gas flow is interrupted and the burner flame
is extinguished, immediately shut off the gas. Do
not relight the heater until you are sure that all
of the gas that may have accumulated through
the heater has cleared away. Do not relight the
heater until at least five minutes have passed.
12. If the heater is to be relocated, make sure that
all gas connections are capped and the gas
supply is shut off. All connection points must
be leak checked after disconnection and after
reconnection.
13. The grower shall inspect the heater before build-
ing repopulation. Such inspection should consist
of, but is not limited to, the following points of
action:
-- Insure proper clearance of heater to nearest
combustible materials.
-- Check for general cleanliness. Clean if necessary.
-- Check for tightness of the gas hose connections.
14. A qualified service person shall inspect the
heater and its gas train at least on an annual
basis. This should consist of, but is not limited to,
the following points of action:
-- Start-up and shut down of the heaters
-- Leak check of all pipe joints and hose
connections.
-- Thorough cleaning of the exterior of the heater, its
burner assembly, and emitter.
-- Thorough inspection of the heater’s component
parts for corrosion, stripped threads, etc. with
subsequent parts replacement as necessary.
-- Gas pressure checks.
15. Turn off the gas supply when the heater is not
in use.
WARNING
Burn Hazard
■The heater’s emitter and canopy are extremely
hot during operation and shortly after shutting
down.
■Always be aware of your proximity to the heater
and avoid contact with its hot surfaces during or
shortly after operation.
■Failure to follow this warning can result in burns
leading to severe personal injury.

H-17 • Radiant Heaters
Owner’s Manual • H-17
9
1. Read all safety precautions and follow L. B. White
recommendations when installing this heater. If
during the installation or relocating of the heater,
you suspect that a part is damaged or defec-
tive, call a qualified service agency for repair or
replacement.
2. Position the heater properly before use in ac-
cordance with requirements for combustible clear-
ances, ground clearance, tilt angle, and to protect
the heater from livestock. Refer to Fig. 2 as well as
the specification table on page 4 in this manual, for
information on installation and clearances.
3. Position the gas hose outside of the hot zone
directly above the heater to avoid any contact with
the hot surface of the heater’s canopy. Refer to
Fig. 2.
4. The heater’s gas regulator (with pressure relief
valve) should be installed outside of building. Any
regulators inside the buildings must be properly
vented to the outside. Local, state and national
codes always apply to regulator installation.
5. Any regulator mounted outside the building be
protected against the weather, particularly ice
formation. Ice formation can lead to overpressur-
ization of the regulator and subsequent gas leaks.
See codes covering proper protection.
6. Always use pipe joint compound that is resistant to
liquefied petroleum gas natural gas.
7. Check all connections for gas leaks using ap-
proved gas leak detectors. Gas leak testing is
performed as follows:
General Installation Instructions
-- Check all pipe connections, hose connections,
fittings and adapters upstream of the gas control
with approved gas leak detectors.
-- In the event a gas leak is detected, check the
components involved for cleanliness and proper
application of pipe compound before further
tightening.
-- Further tighten the gas connections as neces-
sary to stop the leak.
-- After all connections are checked and any leaks
are stopped, turn on the main burner.
-- Stand clear while the main burner ignites to
prevent injury caused from hidden leaks that
could cause flashback.
-- With the main burner in operation, check all hose
connections, fittings and joints as well as the gas
control valve inlet and outlet connections with
approved gas leak detectors.
-- If a leak is detected, check the components
involved for cleanliness in the thread areas and
proper application of pipe compound before
further tightening.
-- Tighten the gas connection as necessary to stop
the leak.
-- If necessary, replace the parts or components
involved if the leak cannot be stopped.
-- Ensure all gas leaks have been identified and
repaired before proceeding.
8. A qualified service agency must check for proper
operating gas pressures upon installation of the
heaters.
9. Use the proper gas supply line to assure proper
functioning of the heaters. Always consult your
fuel gas supplier, or the L. B. White Co., Inc. for
proper line sizing and installation.
10. These heaters require a regulated gas supply
to the gas inlet. Exceeding the gas inlet pres-
sure rating can result in poor performance and
unreliable operation. Refer to page 4 of this
manual for information on gas pressures relat-
ing to specific models.
WARNING
Fire, Burn, and Explosion Hazard
■Do not use open flame (matches, torches,
candles, etc.) in checking for gas leaks.
■Use only approved leak detectors.
■Failure to follow this warning can lead to fires or
explosions.
■Fires or explosions can lead to property dam-
age, personal injury or death.

H-17 • Radiant Heaters
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Owner’s Manual • H-17
10
11. The heater is designed for either L.P. vapor with-
drawal or natural gas, depending on model number.
Do not use this heater in an LPG liquid withdrawal
system. Do not permit LPG in liquid form to enter
the heater at any time.
12. The corrosive atmosphere present in animal
confinement buildings can cause component
failure or heater malfunction. The heater should be
periodically inspected and cleaned in accordance
with the Maintenance and Cleaning Instructions in
this manual. Make sure that livestock is protected
by a back up alarm system that limits high and low
temperatures and also activates appropriate alarms.
13. Take time to understand how to operate and main-
tain the heater using the owner’s manual. Make
sure you know how to shut off the gas supply to the
building and to the individual heaters. Contact your
gas supplier if you have any questions.
14. Any defects found in performing any of the service
procedures must be eliminated and defective parts
replaced immediately. Retest the heater before
placing it back into service.

H-17 • Radiant Heaters
Owner’s Manual • H-17
11
ATTENTION:
■This heater includes a bracket with ring for hanging.
■Use only steel cable or chain for hanging the heater.
■Ensure the heater is hung as shown
with a ¾ inch tilt after the gas supply
hose is connected.
■Refer to Fig. 2
Installation Layout
FIG. 2
Ensure all gas hoses are located out of
the hot zone directly above the heater
and are positioned to avoid any contact
with the hot surfaces of the heater
3 ft. minimum clearance to all combustibles
3.5 ft. minimum clearance to floor
THIS
3/4 inch
Control end of
heater
NOT THIS

H-17 • Radiant Heaters
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Owner’s Manual • H-17
12
Gas Hose Assembly
Using Barbed Fitting
(must be ordered separately)
1. Use pipe thread compound at all threaded connections.
2. Connect the rigid end of hose to gas line of building and
tighten securely.
3. Thread the barbed fitting to the 1/8 in NPT gas inlet of
the safety control valve. Tighten securely.
4. Slide the hose clamp over the hose end and push the
hose firmly on to the barbed fitting.
Gas Hose Clamp
Barb Fitting
Using High/Low Variable Rate Valve Kit
(must be ordered separately)
1. Use pipe thread compound at all threaded connec-
tions.
2. Assemble the kit to the inlet of the heater’s safety
control valve as shown. Tighten all connections
securely.
3. Thread the barbed fitting to the 1/8 in NPT nipple in
the kit.
4. Slide the hose clamp over the hose end and push the
hose firmly on to the barbed fitting.
4. Securely tighten the hose clamp over the hose and
onto the barbed fitting.
5. Connect the rigid end of hose (with hose adapter) to
gas line of building.
6. Open the fuel supply to the heater and check for gas
leaks with approved leak detectors.
Hose Clamp Barb Fitting Nipple Bushings High/Low Valve
5. Securely tighten the hose clamp over the hose
and onto the barbed fitting.
6. Open the fuel supply to the heater and check for
gas leaks with approved leak detectors.
FIG. 3
FIG. 4

H-17 • Radiant Heaters
Owner’s Manual • H-17
13
LOW
HIGH
Attach the canister style mesh filter (supplied) to the air
housing by pushing the filter onto the air housing and
rotating the filter so its slots lock onto the air housing tabs.
See Fig. 6.
Additional dust filtration is provided by a foam filter that fits
over the canister style mesh filter. The foam filter slides
over the canister and then is held in place by the beaded
cable tie. If using the foam filter, ensure the filter completely
covers the canister. The foam filter is an accessory and is
ordered separately.
Dust Filters
The high/low valve allows manual adjustment of the heat
output from high (17,000 btuh) to low (4,000 btuh). Valve
handle parallel to gas flow is HIGH heat. Valve handle
90° to gas flow is LOW heat.
Mesh Filter
Beaded Cable Tie
Foam Filter
FIG. 5
FIG. 6

H-17 • Radiant Heaters
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Owner’s Manual • H-17
14
Lighting Instructions
WARNING
Fire and Explosion Hazard
■Do not force the safety control valve’s button.
■Use only your hand to depress the gas control
button. Never use any tools.
■If the button will not depress by normal hand
pressure, the control should be replaced by a
qualified service person.
■Force or attempted repair may result in fire or
explosion, causing property damage, severe
injury, or death.
Follow steps 1-6 on initial start-up before building popu-
lation. Ensure 5 PSIG gas supply pressure.
1. Open all gas supply valves to the heaters and check
for gas leaks using approved leak detectors.
2. If the High/Low valve is installed, position the valve
handle to HIGH heat position. (Handle parallel to gas
flow). Otherwise, energize the zone control panel to
call for high heat.
3. Fully depress the button on the heater’s safety control
valve while applying flame through the emitter’s light-
ing hole. See Fig. 8.
4. Keep the button depressed for anywhere from 15-30
seconds to allow the thermocouple to warm up.
5. Release the button. The burner will stay lit. Complete
this step for all heaters.
6. Once all heaters are lit, set the building controller to
the desired temperature.
■It is normal for air to be trapped in the gas supply line
on new installations.
■It may take slightly longer for the heater to light and
stay lit until all air is purged from the gas supply line.
Shut Down Instructions
To shut the heater down for service, cleaning, or
maintenance:
1. Shut of the gas supply to all heaters.
2. Allow heaters to burn off the remaining gas in the
gas supply line.
3. Set the building controller to off.
Safety Control Button
Lighting Hole
LOW
HIGH
FIG. 7
FIG. 8

H-17 • Radiant Heaters
Owner’s Manual • H-17
15
Cleaning Instructions
Clean the heater on a regular basis to maintain proper
combustion and to eliminate future problems.
Frequency of cleaning depends on ventilation characteristics
of the building.
Problems associated with lack of cleaning are:
■Black soot inside canopy
■Gas back-flashing in venture tube or air housing
■Burner flame appearing beyond emitter.
Before cleaning, close the fuel supply valve to the heaters
and allow the heater to cool.
HEATER
A. Cleaning with pressurized air. See Fig 9.
■Remove the filter(s).
■Blow dust off the heater.
■Direct the air nozzle at the emitter, working your way
around the entire emitter.
■Blow air through the emitter and down the venturi tube
to loosen any dust in the venturi tube.
■Reverse the process. Turn the heater with its emitter
pointed down and blow air through the air inlet opening
down the venturi tube to the emitter.
■Repeat this process several times or until dust is no
longer observed.
■Inspect for reasonable cleanliness.
■Return the heater to its proper hanging position.
B. Cleaning with water.
The following should only be accomplished if the heater(s)
cannot be cleaned adequately by the air method.
■Remove the filter(s).
■Follow the same procedures as done with “Cleaning
with Pressurized Air”.
■Repeat these steps until water runs clean.
■SHAKE THE HEATER vigorously to clear water off
the emitter to allow proper ignition.
■Return the heater to its proper hanging position.
■Relight the heater to dry out the emitter and venturi
tube.
FILTER (mesh style and foam)
■During Continued Use
• Remove the filters and shake off the dust
• DO NOT tap on the filter while the filter is installed
on the heater. Doing so will cause dust to be blown
into the venturi tube or emitter.
■After continued use or before building repopulation
• Remove the filter and shake off the dust.
• Use compressed air or water to clean the filters.
• If cleaning the foam filter, DO NOT use a washing
machine. Filter material damage will occur.
• If water is used, shake off excess water from the
foam filter before installation.
• Allow the foam filter to air dry before lighting the
heater.
FIG. 9
EMITTER
AIR INLET

H-17 • Radiant Heaters
www.lbwhite.com
Owner’s Manual • H-17
16
Maintenance
Instructions
BEFORE EACH USE:
■Check the area surrounding the heater to
ensure it is clear and free of combustible ma-
terials, gasoline, and other flammable vapors
and liquids.
■Have your gas supplier check all gas connec-
tions for leaks or restrictions in gas lines.
■Inspect the gas regulator vent to make sure
its vent is not blocked. Debris, insects,insect
nests, snow, or ice on a regulator can block
vents and cause excess pressure at the heater.
■Check the hose assembly after heater installa-
tion, relocation and before the heater is put into
use. Ensure proper positioning. (See Fig.2).
■Ensure the hose is not cut, or if there is exces-
sive abrasion or wear. If so, it must be replaced
prior to the heater being put into operation.
■Check overall condition of the heater for
cracked, damaged, rusted or corroded compo-
nents, loose screws or bolts, etc. Replace any
suspect components immediately.
■For safety as well as for optimum performance
of the heater, it is necessary to keep the inside
and the outside of the heater free of dust, dirt,
or any combustible material.
■Review all heater labels at the time of main-
tenance for legibility. Make sure none are cut,
torn, or otherwise damaged. Any damaged
labels must be replaced immediately by con-
tacting the L.B. White Co., Inc.
ANNUALLY:
■Regulators can wear out and function improp-
erly. Have your gas supplier check the date
codes on all regulators installed and check
delivery pressures to the heater to make sure
that the regulator is reliable.
Service Instructions
1. Close the fuel supply valve to the heater unless it is
necessary to have the valve open for services.
2. In servicing some components, it may be
necessary to remove the gas hose, or filter.
3. For reassembly, reverse the respective service proce-
dure. Ensure gas connections are tightened securely.
4. After servicing, light the heater to ensure proper opera-
tion and check for gas leaks.
5. Clean the heater’s orifice with compressed air or a soft,
dry rag. Do not use files, drills, broaches, etc. to clean
the orifice hole. Doing so will enlarge the hole, causing
combustion or ignition problems. Replace the orifice if it
cannot be cleaned properly.
WARNING
Burn Hazard
■Heater surfaces are extremely hot for a period of
time after the heater has been shut down.
■Allow the heater to cool before performing
service, maintenance, or cleaning.
■Failure to follow this warning will result in burns
causing injury.
WARNING
Fire and Explosion Hazard
■Do not disassemble or attempt to repair any
heater components or gas train components
such as gas valves, or gas hoses.
■All component parts must be replaced if defects
are found.
■Failure to follow this warning will result in fire or
explosions, causing property damage, injury, or
death.

H-17 • Radiant Heaters
Owner’s Manual • H-17
17
Burner Orifice
Orifice size is stamped on one of the flats of the orifice
hex. This number indicates size in millimeters.
LP orifice: part number 570094, 63 (0.63 mm)
NG orifice: part number 570095, 79 (0.79mm)
To access the burner orifice:
1. Remove the following:
a. Thermocouple from the safety control valve.
b. Screw and washer from top of air housing
2. Use a 6 mm nut driver to remove the orifice from inside
the air housing.
3. If the orifice is blocked by dirt, clean with compressed
air. If it cannot be cleaned with air, replace the orifice.
DO NOT use tip cleaners, broaches, or small drills
as the hole may be enlarged, creating an overheat
problem.
Safety control valve
The valve contains an electromagnet that receives cur-
rent supplied by the thermocouple when the thermo-
couple is heated.
The current keeps the magnet engaged when you
depress the button on the valve, thereby providing gas
to the emitter. If the magnet internal to the valve is defec-
tive, the heater will light but not stay lit when the button is
released. To replace the safety control valve, refer to the
following procedures and Fig. 12:
Remove screw, washer, and thermocople
Orifice
a. Remove hose and filter from the air housing.
b. Remove thermocouple from safety control valve.
c. When replacing, apply pipe thread compound (in-
cluded with replacement) to 1/8 in. threads of safety
control.
Thermocouple
This works with the safety control valve by supplying direct
current to the valve’s magnet when the thermocouple tip is
heated. The thermocouple is positioned at the emitter.
To remove the thermocouple, refer to the following and
Fig. 13.
1. Loosen the thermocouple connector nut at the safety
control valve.
2. Loosen the thermocouple’s nut closest to the emitter
while guiding the thermocouple back through the
bracket’s hole. Pull the thermocouple from its bracket.
3. When installing the replacement, thread a retaining nut
1 inch from end of thermocouple body. Feed the ther-
mocouple tip partially through the bracket’s hole while
threading on the remaining nut. Tighten both mounting
nuts to the thermocouple mounting bracket.
Safety Control Valve
1 inch
Emitter
Nut
FIG. 10
FIG. 11
FIG. 12
FIG. 13

H-17 • Radiant Heaters
www.lbwhite.com
Owner’s Manual • H-17
18
■Testing the thermocouple:
- Remove the thermocouple from the heater.
- Connect an ohm meter between the thermo-
couple contact nut and tip.
- A reading of less than 1 ohm when the thermo-
couple is cool is acceptable.
■Readings showing overload or infinite resistance
indicate a defective thermocouple.
Gas Pressure Checks
A.Initial preparation
1. Ensure the proper fuel and gas pressure is
supplied before starting this procedure. LPG and
Natural gas pressure must be 5 PSIG
2. Obtain a high- pressure gas gauge kit capable
of reading up to 10 PSIG or order kit number
500-20736.
3. Close the fuel supply valve for all heaters in the
heat zone.
B.Pressure Gauge Installation
1. At the heater furthest away from the zone control
panel or gas supply, brush or blow off any dust and
dirt on the heater’s gas hose connection at the gas
supply line.
2. Disconnect the heater’s gas hose at this junction.
3. Connect the pressure test kit between the gas
supply and the inlet of the heater’s gas hose.
Ensure both shut-off valves on the kit are in the
closed position when connecting the kit to the
heater.
C.Checking Pressures
1. Open the fuel supply valve to all heaters in the zone,
and the fuel supply valve on the test kit as shown
in Fig. 14.
2. Light all heaters in the zone.
3. With all heaters in the zone operating at full heat
output, the pressure gauge should read 5 PSIG.
4. Is the pressure 5 PSIG? If yes, the no further
checking is required and proceed to Section D.
If the pressure is not 5PSIG, then the regulator
controlling gas pressure to the heaters requires
adjustment, or the gas line needs to be checked for
proper sizing.
D.Completion
1. Once gas pressure has been confirmed, close the
fuel supply valves to the heaters and allow the heat-
ers to burn off any gas remaining in the gas line.
2. Remove the gauge kit from the heater’s gas supply
line and reconnect its gas supply hose.
3. Open the fuel supply valve and light all brooders.
FIG. 14
To building’s
gas supply line
Adapter
Pressure
gauge kit Gas supply
hose to heater
Open this valve to supply
gas to heater

H-17 • Radiant Heaters
Owner’s Manual • H-17
19
Troubleshooting Guide
READ THIS ENTIRE SECTION BEFORE
BEGINNING TO TROUBLESHOOT PROB-
LEMS.
The following troubleshooting flow charts provide
systematic procedures for isolating heater problems.
The charts are intended for use by a QUALIFIED
GAS HEATER SERVICE PERSON. DO NOT
SERVICE THE HEATER UNLESS YOU HAVE BEEN
PROPERLY TRAINED.
TEST EQUIPMENT REQUIRED
The following pieces of test equipment will be
required to troubleshoot this system with minimal time
and effort.
• Digital Multimeter - For measuring DC voltage when
using thermocouple diagnostic kit.
• Thermocouple Diagnostic Kit - (L. B. White Part No.
500-21188) When used with a standard digital multi-
meter, this kit allows testing of the thermocouple and
electromagnetic power unit.
• Pressure Gauge - (L. B. White Part No. 500-20736)
For checking inlet pressures to the heaters.
INITIAL PREPARATION
-- Inspect heater for damage.
-- Thoroughly clean the heater.
Heater Problems Page
1. Heater does not light ........................ 20
2. Flames extending beyond
emitter or lazy flame ......................... 20
3. Heater lights but does not stay lit ..... 21
4. Emitter does not fully heat up........... 22
5. Heater backflashes gas through
air housing inlet ................................ 22
Components should be replaced only after each
step has been completed and replacement is
suggested in the flow chart. Refer to the servicing
sections as necessary to obtain information on
disassembly and replacement procedures of the
component once the problem is identified by the
flow chart.
WARNING
Burn Hazard
■Troubleshooting this system may require
operating the heater with the burner on. Use
extreme caution when working on the heater.
■Failure to follow this warning will result in burns
causing severe injury.

H-17 • Radiant Heaters
www.lbwhite.com
Owner’s Manual • H-17
20
Problem 1 Heater does not light Problem 2 Flame burning beyond emitter or lazy flame
Are all fuel supply valves to
heater open?
Open all fuel supply valves. Provide 5 PSIG gas pressure.
Is proper gas pressure
supplied to the zone panel
or heater?
Provide 5 PSIG gas pressure.
Clean the heater.
Is proper gas pressure
supplied to the zone panel
or heater?
Is there air or a blockage in
the gas hose or gas piping?
Remove blockage with com-
pressed air or replace the gas
hose or pipe section. Bleed off
any air from the gas line.
Remove the orifice. Clean with a soft brush or compressed air.
Is orifice plugged on the
inside or outside?
Clean the heater.
No No
No
No No
Yes
Yes Yes Yes
Yes