L.B. White TS350DF Manual

Attention
This heater has been tested and
evaluated by the CSA Group in
accordance with the requirements
of Standard ANSI Z83.7•CSA 2.14
and is listed and approved as a
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construction heater with
application for the temporary
heating of buildings under
construction, alteration, or repair.
Additionally, this heater has been
application reviewed and approved
by the CSA Group for U.S.and
Canadian Tent Heating
Applications with temporary human
occupancy. CHECK WITH YOUR
LOCAL FIRE SAFETY
AUTHORITY, YOUR LOCAL FUEL
GAS SUPPLIER, OR THE L.B.
WHITE COMPANY IF YOU HAVE
QUESTIONS REGARDING
APPLICATIONS.
www.lbwhite.com
SCAN THIS
with your smartphone or
visit http://goo.gl/5j21G
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!
<RXKDYHSXUFKDVHGWKH¿QHVWFLUFXODWLQJKHDWHUDYDLODEOH
<RXUQHZ/%:KLWHKHDWHULQFRUSRUDWHVWKHEHQH¿WVIURPWKH
most experienced manufacturer of heating products using
state-of-the-art technology.
:HDW/%:KLWHWKDQN\RXIRU\RXUFRQ¿GHQFHLQRXUSURGXFWV
and welcome any suggestions or comments you may have...
contact us at 1-800-345-7200, or email us at
customerser[email protected].
Dual Fuel
Premier
Ductable Heaters
TS350DF 350,000 Btuh / 102.6 kW
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.

Premier Ductable Heaters
www.lbwhite.com
Owner’s Manual • Premier 350
2
TABLE OF CONTENTS
WARNING
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between 0 and 2000 ft. (0-610 m) 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.
+HDWHU6SHFL¿FDWLRQV............................................................................................................... 4
General Information................................................................................................................. 5
Safety Precautions .................................................................................................................. 5
General Installation Instructions .............................................................................................. 8
Connecting Regulator to Gas Supply ...................................................................................... 11
Start-Up Instructions................................................................................................................ 14
Shut-Down Instructions ........................................................................................................... 15
Cleaning Instructions............................................................................................................... 16
Maintenance Instructions......................................................................................................... 16
Service Instructions ................................................................................................................. 17
Gas Pressure Checks.............................................................................................................. 23
Troubleshooting Information.................................................................................................... 25
Electrical Connection and Ladder Diagram............................................................................. 32
Parts Schematic and Parts List ............................................................................................... 34
Warranty Policy, Replacement Parts and Service ................................................................... 37

Premier Ductable Heaters
Owner’s Manual • Premier 350
3
WARNING
FIRE, BURN, INHALATION, AND
EXPLOSION HAZARD
Ŷ.((362/,'&20%867,%/(6$6$)(',6-
TANCE AWAY FROM THE HEATER.
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PAPER, OR PLASTIC PRODUCTS, BUILDING
MATERIALS AND DUST.
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CONTAIN OR MAY CONTAIN VOLATILE OR
AIRBORNE COMBUSTIBLES.
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INCLUDE GASOLINE, SOLVENTS, PAINT
THINNER, DUST PARTICLES OR UNKNOWN
CHEMICALS.
Ŷ)$,/85(72)2//2:7+(6(,16758&7,216
MAY RESULT IN A FIRE OR EXPLOSION.
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PROPERTY DAMAGE, PERSONAL INJURY OR
DEATH.
FOR YOUR SAFETY
If you smell gas:
1. Open windows.
2. Don’t touch electrical switches.
([WLQJXLVKDQ\RSHQÀDPH
4. Immediately call your gas supplier.
FOR YOUR SAFETY
'RQRWVWRUHRUXVHJDVROLQHRURWKHUÀDP-
mable vapors and liquids in the vicinity of this
or any other appliance.
GENERAL HAZARD WARNING
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THIS HEATER CAN RESULT IN:
— DEATH
— SERIOUS BODILY INJURY OR BURNS
— PROPERTY DAMAGE OR LOSS FROM FIRE OR EXPLOSION
— ASPHYXIATION DUE TO LACK OF ADEQUATE AIR SUPPLY OR CARBON MONOXIDE
POISONING
— ELECTRICAL SHOCK
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SHOULD USE OR SERVICE THIS HEATER.
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WEBSITE, OR FOR ASSISTANCE, CONTACT L.B. WHITE AT 1-800-345-7200.
WARNING
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HEATER INLET CAN CAUSE FIRES OR EXPLOSIONS.
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DAMAGE.
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MAY CAUSE IMPROPER COMBUSTION.
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ING AND THEREFORE SERIOUS INJURY OR DEATH.
WARNING
FIRE AND EXPLOSION HAZARD
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Ŷ,167$//$7,212)7+,6+($7(5,1$+20(255(&5($7,21$/9(+,&/(0$<5(68/7,1$
FIRE OR EXPLOSION.
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WARNING
Cancer and reproductive harm.
See www.P65Warnings.ca.gov.

Premier Ductable Heaters
www.lbwhite.com
Owner’s Manual • Premier 350
4
Specifications
Description Model
TS350DF
Fuel Type Propane Gas Natural Gas
Maximum Input (Btuh/kW) 350,000 / 102.6
Inlet Gas Supply Pressure
Acceptable at the Inlet of the
Heater for Purpose of Input
Adjustment (Inches W.C./kPa)
MAX 13.5 / 3.36
MIN 11.0 / 2.74
Burner Manifold Pressure (Inches W.C/kPa) 5.2 / 1.30 5.3 / 1.32
Fuel Consumption Per Hour MAX 16.2 lbs. / 7.34 kg 350 cu.ft./9.9m³
Motor Characteristics Ball Bearing
1 H.P. / 745.7 Watts / 1,725 RPM
Blower Speed 915 RPM
Electrical Supply (Volts/Hz/Phase) 120 / 60 / 1
Amp Draw Starting 25.0
Continuous 11.0
Dimensions L x W x H (Inches/cm) 48 x 22.25 x 32.75 / 122 x 56.5 x
83.2
Minimum Safe Distances from
Nearest Combustible Material
(Feet / Meters)
Top 1 / 0.3
Sides 1 / 0.3
Back 1 / 0.3
Blower
Outlet
6 /1.83
Gas
Supply
Propane - U.S.: 6, Canada: 3.05
- Natural Gas - N/A
Minimum Ambient Temperature -20°F / -29°C

Premier Ductable Heaters
Owner’s Manual • Premier 350
5
This Owner’s Manual includes accessories commonly used on this heater. These accessories must be ordered
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This manual will instruct you in the operation and care of your unit. Have your installer review this manual with you
so that you fully understand the heater and how it functions.
Contact your local L.B. White distributor or the L.B. White Company, LLC for assistance, or if you have any ques-
tions about the use of the equipment or its application. The L.B. White Company, LLC has a policy of continuous
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General Information
Safety Precautions
WARNING
Air Quality Hazard
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CO2, and NO2 considered to be hazardous to health and potentially life threatening.
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- Headaches, stinging eyes.
- Dizziness, disorientation.
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acceptable air quality shall be provided in accordance with OSHA 29 CFR part 1926.154, ANSI A10.10
Safety Requirements for Temporary and Portable Space Heating Devices and Equipment used in the
Construction Industry or the Natural Gas and Propane Installation Codes CSA B149.1.
- Periodically monitor levels of CO, CO2, and NO2 existing at the construction site – at the
minimum at the start of the shift and after 4 hours.
- Provide ventilation air exchange, either natural or mechanical, as required to maintain
acceptable indoor air quality.
USA 8-Hr. Time weighted average Canada 8-Hr. Time weighted average
(OSHA 29 CFR 1926.55 App A) WorkSafe BC OHS Guidelines Part 5.1
and Ontario Workplaces Reg 833
CO 50 ppm 25 ppm
CO2 5,000 ppm 5,000 ppm
NO2 3 ppm (Reg 833)
USA – Ceiling Limit Canada STEL (15 minutes Reg 833/1 hr.
(Short Term Exposure Limit = 15 minutes) WSBC) WorkSafe BC OHS Guidelines part
5.1 and Ontario Workplaces Reg 833
CO 100 ppm
CO2 15,000 ppm (WSBC)
30,000 ppm (Reg 833)
NO2 5 ppm 1.0 ppm (WorkSafeBC)
5.0 ppm (Reg 833)
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Premier Ductable Heaters
www.lbwhite.com
Owner’s Manual • Premier 350
6
Propane gas and natural gas have man-made odor-
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If a gas leak occurs, you should be able to smell
the fuel gas . THAT’S YOUR SIGNAL TO GO INTO
IMMEDIATE ACTION!
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gas. Do not operate any electrical switches. Do not
pull any power supply or extension cords. Do not
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use your telephone.
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area immediately.
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low areas. When you have reason to suspect a
propane leak, keep out of all low areas.
Ŷ8VH\RXUQHLJKERU¶VSKRQHDQGFDOO\RXUIXHOJDV-
VXSSOLHUDQG\RXU¿UHGHSDUWPHQW'RQRWUHHQWHU
the building or area.
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XQWLOGHFODUHGVDIHE\WKH¿UH¿JKWHUVDQG\RXUIXHO
gas supplier.
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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 heater for you.
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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.
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natural gas. Local propane gas dealers and your
local natural gas supplier (utility) will be more than
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Use it to become familiar with the fuel gas odor.
Fuel Gas Odor
Odor Fading - No
Odor Detected
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recognize these odors. (Reference Fuel Gas Odor
and Odor Fading sections above).
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service
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and repair of the heater, ALWAYS be consciously
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:
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service and repair. This includes the task of instal-
lation, troubleshooting, replacement of defective
Attention - Critical
Points to Remember!
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ing around an odor for a period of time can affect
your sensitivity to that particular odor.
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colorless and the intensity of its odor can fade
under some circumstances.
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ent levels. Since propane gas is heavier than air,
there may be more odor at lower levels.
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you continue to detect any gas odor, no matter
how small, treat it as a serious leak. Immediately
go into action as discussed previously.

Premier Ductable Heaters
Owner’s Manual • Premier 350
7
parts and testing of the heater. You must be able
to place the heater into a continuing safe and
normal operating 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.
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KDYHVXI¿FLHQWWUDLQLQJDQGH[SHULHQFHWRKDQGOH
all aspects of installing, repairing and altering gas
lines, including selecting and installing the proper
equipment, and selecting proper pipe and tank size
to be used. This must be done in accordance with
all local, state and national codes as well as the
manufacturer’s requirements.
c. In the Commonwealth of Massachusetts, this
SURGXFWPXVWEHLQVWDOOHGE\DJDV¿WWHUOLFHQVHGLQ
the Commonwealth of Massachusetts.
2. All installations and applications of L.B. White
heaters must meet all relevant local, state and
national codes. Included are L.P. gas, natural gas,
electrical, and safety codes. Your local fuel gas
VXSSOLHUDORFDOOLFHQVHGHOHFWULFLDQWKHORFDO¿UH
department or similar government agencies, or
your insurance agent can help you determine code
requirements.
Refer to the following:
U.S. Installations:
-- ANSI/NFPA 58, latest edition, Standard for Storage
DQG+DQGOLQJRI/LTXH¿HG3HWUROHXP*DVDQGRU
-- ANSI Z223.1/NFPA 54, National Fuel Gas Code
-- ANSI/NFPA 70, National Electrical Code.
Canadian Installations:
-- CSA B149.1 Natural Gas and Propane Gas Instal-
lation Code.
-- CSA C22.1 Part 1 Standard Canadian Electrical
Code
-- CSA C22.2 No.3, Electrical Features of Fuel Burn-
ing Equipment.
3. We cannot anticipate every use which maybe
made of our heaters. Other standards govern the
use of fuel gases and heat producing products
LQVSHFL¿FDSSOLFDWLRQV<RXUORFDODXWKRULW\FDQ
advise you about these. Check with the local
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applications.
4. Do not wash the interior of the heater. Use only
compressed air, a soft brush or dry cloth to clean
the interior of the heater and it’s components.
5. For safety, this heater is equipped with manual
reset high limit switches, an air-proving switch
and a redundant gas control valve. Never operate
the heater with any safety device that has been
bypassed. Do not operate this heater unless all of
these features are fully functioning.
6. Do not locate fuel gas containers or fuel supply
hoses within 20 ft./6.10 meters of the blower outlet
of the heater.
7. Do not block air intakes or discharge outlets of the
heater. Doing so may cause improper combus-
tion or damage to heater components leading to
property damage.
8. The hose assembly shall be visually inspected on
a daily basis after heater relocation and when the
heater is in use. If it is evident there is excessive
abrasion or wear, or if the hose is cut, it must be re-
placed prior to the heater being put into operation.
The hose assembly shall be protected from building
materials, and contact with hot surfaces during
use. The replacement hose assembly shall be that
VSHFL¿HGE\WKHPDQXIDFWXUHU6HHSDUWVOLVW
9. Premier 350DF heaters are equipped with a gas
selector valve. The selector valve must be properly
positioned for the gas supplied to the heater.
Further information on this feature is provided on
page 17 of this manual.
10. Check for gas leaks and proper function upon
heater installation, when relocating, and after
servicing. Refer to leak check instructions within
installation section of this manual.
11. This heater shall be inspected for proper operation
E\DTXDOL¿HGVHUYLFHSHUVRQEHIRUHHDFKXVHDQG
at least annually.
12. Always turn off the gas supply to the heater if the
heater is not going to be used in the heating of the
work space.
13. This heater is equipped with a three-prong
(grounding) plug for your protection against
shock hazard and must be plugged directly into a
properly grounded three-prong receptacle. Failure
to use a properly grounded receptacle can result
in electrical shock, personal injury, or death.

Premier Ductable Heaters
www.lbwhite.com
Owner’s Manual • Premier 350
8
,IJDVÀRZLVLQWHUUXSWHGDQGÀDPHJRHVRXWGR
not relight the heater until you are sure that all
gas that may have accummulated has cleared
away. In any event, do not relight the heater for
at least 5 minutes.
15. The heater requires a minimum 500 gallon/1892
litre propane tank for proper gas supply pressure
and operation. A larger tank may be required
depending upon operating conditions at the site.
16. When the heater is to be stored indoors, the
connection between the propane gas supply
cylinder(s) and the heater must be disconnected
and the cylinder(s) removed from the heater and
stored in accordance with the Standard for the
6WRUDJHDQG+DQGOLQJRI/LTXL¿HG3HWUROHXP
Gases, ANSI/NFPA 58 or Standard CSA B149.1
Natural Gas and Propane Installation Code as
appropriate.
17. Propane gas supply containers have left handed
threads. Always use the appropriate wrench
to make a connection to tighten or loosen the
SLJWDLOFRQQHFWRU¶V32/¿WWLQJDWWKHFRQWDLQHU¶V
gas supply valve.
18. For either indoor or outdoor installation and
use. Adequate ventilation shall be provided
in accordance with OSHA 29 CFR 1926.154,
Safety Requirements for Temporary and Portable
Space Heating Devices and Equipment, ANSI
A10.10, National Fuel Gas Code, ANSI
=1)3$/LTXL¿HG3HWUROHXP*DV&RGH
NFPA 58 or the Natural Gas and Propane
Installation Code, CAN B149.1, as appropriate.
General Installation Instructions
WARNING
Burn Hazard
Can cause property damage, severe injury or death.
1. To avoid dangerous accumulation of fuel gas, turn
off gas supply at the appliance service valve before
starting installation, and perform gas leak test after
completion of installation.
2. Do not force the gas control knob. Use only your
hand to turn the gas control knob. Never use any
tools. If the knob will not operate by hand, the
FRQWUROVKRXOGEHUHSODFHGE\DTXDOL¿HGVHUYLFH
technician. Force or attempted repair may result in
¿UHRUH[SORVLRQ
1. Read all safety precautions and follow L. B. White
recommendations when installing this heater. If
during the installation or relocating of heater, you
suspect that a part is damaged or defective, call a
TXDOL¿HGVHUYLFHDJHQF\IRUUHSDLURUUHSODFHPHQW
2. Make sure the heater is level (use a level) and
properly positioned before use. Observe and obey
all minimum safe distances of the heater to the
nearest combustible materials. Safe distances are
given on the heater dataplate and on page 4 of this
manual.
3. This heater may be installed either indoors or
outdoors and is approved for use with or without
ductwork. For outdoor installations, additional
accessories are needed to properly provide
heated air to the inside.
Only the ducting and the air distribution acces-
VRULHVDVVXSSOLHGDQGVSHFLÀHGE\WKHKHDWHU·V
manufacturer shall be used.
-- 18 in./43.7 cm Dia. x 12 ft./3.66 m Duct:
Part #500-22835
-- End Diffuser: Part #500-23189
DO NOT USE ANY OTHER LENGTH OF DUCT-
WORK OR FIELD FABRICATED DUCT, TARPS,
STOVE PIPE, ETC. ON THIS HEATER.
Ŷ:KHQXVLQJWKHGXFWLQJHQVXUHWKDWEHQGVLQGXFW
are kept to a minimum. A maximum of two 90º
bends is allowed.

Premier Ductable Heaters
Owner’s Manual • Premier 350
9
Ŷ5HGXFLQJWKHQXPEHURIEHQGVZLOOHQVXUHWKDWWKH
ZDUPDLUH[LWLQJWKHKHDWHUÀRZVIUHHO\WKHUHE\SUH-
venting overheating. If there are excessive bends,
the high limit switches may open.
4. Heaters used in the vicinity of combustible
tarpaulins, canvas, plastics, wind barriers, or similar
coverings shall be located at least 10 ft./3.05 meters
from the coverings. The coverings shall be securely
fastened to prevent ignition or upsetting of the
heater due to wind action on the covering or other
material.
5. Check all connections for gas leaks using approved
gas leak detectors. Gas leak testing is performed
as follows:
&KHFNDOOSLSHFRQQHFWLRQVKRVHFRQQHFWLRQV¿W-
tings 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 ap-
plication of pipe compound before further tightening.
-- Furthermore, 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
ÀDVKEDFN
-- With the main burner in operation, check all connec-
WLRQVKRVHFRQQHFWLRQV¿WWLQJVDQGMRLQWVDVZHOO
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 ap-
plication of pipe compound before further tightening.
WARNING
Fire and Explosion Hazard
Ŷ'RQRWXVHRSHQÀDPHPDWFKHVWRUFKHV
candles, etc.) in checking for gas leaks.
Ŷ8VHRQO\DSSURYHGOHDNGHWHFWRUV
Ŷ)DLOXUHWRIROORZWKLVZDUQLQJFDQOHDGWR¿UHV
or explosions.
Ŷ)LUHVRUH[SORVLRQVFDQOHDGWRSURSHUW\GDP-
age, personal injury or loss of life.
-- Tighten the gas connection as necessary to stop
the leak.
-- If necessary, replace the parts or components
involved if the leak cannot be stopped.
(QVXUHDOOJDVOHDNVKDYHEHHQLGHQWL¿HGDQG
repaired before proceeding.
$TXDOL¿HGVHUYLFHDJHQF\PXVWFKHFNIRUSURSHU
operating gas pressure upon installation of the
heater.
7. Light according to instructions on heater or within
owner’s manual.
8. Make sure the heater has the proper gas
regulator for the application. A regulator must be
connected to the gas supply so that gas pressure
at the inlet to the gas valve is regulated within the
UDQJHVSHFL¿HGRQWKHGDWDSODWHDWDOOWLPHV
• The regulator supplied with the Premier 350DF
heater is suitable for use with propane gas and
natural gas.
• Contact your gas supplier, or the L.B. White Co.,
LLC. if you have any questions.
9. The heater must be installed so as not to interfere
with or obstruct normal exits, emergency exits,
doors and walkways.
10. Railing, fencing or suitable substitute materials
must be used to keep the heating equipment
from any people using and visiting the structure.
11. The heater shall be located so that rain, ice, or
snow drainage from the structure does not affect
equipment operation. If the heater is mounted
outside, it must be mounted above any pooled or
standing water. If the unit is to be located on the
ground, a surrounding trench is recommended to
drain any rain, ice or snow away from the unit.
12. The ground and surrounding terrain must be
cleared of any combustible vegetation and other
combustible materials when the heater is utilized
outside.
13. Eventually, like all electrical/mechanical devices,
the thermostat can fail. Thermostat failure may
result in an underheating condition. The ther-
mostat should be tested to make sure it turns

Premier Ductable Heaters
www.lbwhite.com
Owner’s Manual • Premier 350
10
the heater on and off within a temperature
differential of ±3°F (±1.5 °C).
14. Take time to understand how to operate and
maintain the heater by using this Owner’s
Manual. Make sure you know how to shut
off the gas supply to the building and also to
the individual heater. Contact your fuel gas
supplier if you have any questions.
15. Any defects found in performing any of the
service or maintenance procedures must
be eliminated and defective parts replaced
immediately. The heater must be retested by
SURSHUO\TXDOL¿HGVHUYLFHSHUVRQQHOEHIRUH
placing the heater back into use.
The vaporization of propane is affected by several
factors: the surface area of the container, the liquid
level of propane, temperature surrounding the
container, and the relative humidity. All of these
IDFWRUVDUHVSHFL¿FWRDVLWH7KHUHIRUHDGHJUHHRI
experience and judgement is required to select the
proper propane supply.
Although experience is the best guide, the follow-
ing recommendations can be used as a starting
point. The table is based on experience in northern
climates where cold weather and high humidity are
prevalent in the winter. If more or less favorable
FRQGLWLRQVSUHYDLODWDVSHFL¿FVLWHDGMXVWPHQWVFDQ
be made on the basis of experience.
If more than one gas supply container is used per
heater, the containers must be manifolded together
to allow vapor withdrawal simultaneously from
multiple containers. Manifold system shall be in ac-
cordance with NFPA 58 or CSA B149.1.
Gas Supply Sizing
Recommended Gas Supply
TANK SIZE HEATERS / TANK
500 gall. / 1892 litre 1
1000 gall. / 3784 litre 2