User manual | L.B. White TS 350 Ductable Heater Owner's Manual and Instructions

Owner's Manual and Instructions
Premier Ductable Heaters
View this manual online at www.lbwhite.com
MODELS
TS350
OUTPUT (Btuh/kW)
FUEL
350,000/102.6
Propane Vapor
Withdrawal
or
Natural Gas
Certification by:
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ATTENTION ALL USERS
This heater has been tested and evaluated by C.S.A. International in accordance
with the requirements of Standard ANSI Z83.7 CSA 2.14 and is listed and
approved as a ductable direct gas-fired forced-air construction heater with
application for the temporary heating of buildings under construction, alteration, or
repair. 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 Co., Inc.
150-30036 REV.A
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 properly-trained service people should repair or install 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 poisoning 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.
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
flammable vapors and liquids in the vicinity of
this or any other appliance.
2
WARNING
Fire and Explosion Hazard
■ Keep solid combustibles a safe distance
away from the heater.
■ Solid combustibles include wood, paper, or
plastic products, building materials and
dust.
■ Do not use the heater in spaces which
contain or may contain volatile or airborne
combustibles.
■ Volatile or airborne combustibles include
gasoline, solvents, paint thinner, dust
particles or unknown chemicals.
■ Failure to follow these instructions may
result in a fire or explosion.
■ Fire or explosions can lead to property
damage, personal injury or loss of life.
Table of Contents
SECTION
PAGE
General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Heater Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Installation Instructions
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Gas Supply Sizing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Connecting Hose to Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Connecting Regulator to Gas Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Installation of Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Inside Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Outside Structure (Using air distribution accessories) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
A. Extendable Duct . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
B. End Diffuser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Start-Up Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Shut-Down Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Gas Selector Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Cleaning Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Maintenance Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Service Instructions
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Belt Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Belt Tensioner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Fan and Motor Pulley . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Drive Component Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Fan Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Air Proving Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Igniter Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Testing the Manual Reset High Limit Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Burner Orifice and Gas Control Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Fan Wheel, Bearings, and Shaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Gas Pressure Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Troubleshooting Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Electrical Connection and Ladder Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Heater Component Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Parts Identification
Parts Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31 & 32
Warranty Policy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Replacement Parts and Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
3
General Information
This Owner's Manual includes all options and accessories
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. See
page 6 for definition of the necessary qualifications.
Contact your local L.B. White distributor or the L.B. White
Co., Inc. for assistance, or if you have any questions about
the use of the equipment or its application.
The L.B. White Co., Inc. has a policy of continuous product
improvement. It reserves the right to change specifications
and design without notice.
Heater Specifications
Model
TS350
SPECIFICATIONS
Propane
Gas
Fuel Type
Maximum Input (Btuh/kW)
Natural
Gas
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)
Fuel Consumption Per Hour
5.2/1.30
5.3/1.32
16.2 lbs./7.34 kg
350 cu.ft./9.9 m3
Ball Bearing
Motor Characteristics
1 H.P./745.7 Watts, 1,725 RPM
Blower Speed
915 RPM
Electrical Supply (Volts/Hz/Phase)
115/60/1
Amp Draw
STARTING
35.0
CONTINUOUS
OPERATION
11.0
Dimensions
L x W x H (Inches/cm)
Minimum Safe
Distances From
Nearest
Combustible
Materials
(Feet/meters)
(
48 x 22.25 x32.75/122 x 56.5 x 83.2
TOP
SIDES
BACK
BLOWER
OUTLET
GAS
SUPPLY
Net Weight (lbs./kg)
Shipping Weight (lbs./kg)
Minimum Ambient Temperature
in Which Heater May Be Used
4
1/0.3
1/0.3
1/0.3
6/1.83
Propane - U.S.: 6, Canada:3.05
Natural Gas - N/A
295/133.8
310/140.6
- 20º F/-29ºC
Safety Precautions
WARNING
■
■
■
■
Asphyxiation Hazard
Do not use this heater for heating human living ■ Improper combustion can lead to carbon monoxide
quarters, garages, workshops, or other such confined
poisoning leading to serious injury or death. Symptoms
spaces.
of carbon monoxide poisoning can include headaches,
dizziness and difficulty in breathing.
Do not use in unventilated areas.
■ Proper ventilation air for combustion must be provided
The flow of combustion and ventilation air must not be
in accordance with OSHA 29 CFR 1926.154,
obstructed.
Temporary Heating Devices, ANSI A10.10, Safety
Requirements for Temporary and Portable Space
Proper ventilation air must be provided to support the
Heating Devices, or the Natural Gas and Propane
combustion air requirements of the heater being used.
Installation Code, CAN/CSA B149.1 as appropriate.
■ Lack of proper ventilation air will lead to improper
combustion.
FUEL GAS ODOR
Propane gas and natural gas have man-made odorants 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.
ODOR FADING -- NO ODOR DETECTED
■ Some people cannot smell well. Some people cannot
smell the odor of the man-made chemical 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 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.
■ The odorant in propane gas and natural gas is colorless
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.
ATTENTION -- CRITICAL POINTS TO REMEMBER!
■ Propane gas has a distinctive odor. Learn to recognize
these odors. (Reference Fuel Gas Odor and Odor
Fading sections above.
■ Even if you are not properly trained in the service and
repair of the heater, ALWAYS be consciously aware of
the odors of propane gas and natural gas.
■ If you have not been properly trained in repair and service
of propane gas then do not attempt to light heater,
perform service or repairs, or make any adjustments to
the heater on the propane gas fuel system.
■ 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!
5
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.
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.
Qualifications for service and installation of this
equipment are as follows:
6. Do not locate fuel gas containers or fuel supply hoses
within 20 ft./6.10 meters of the blower outlet of the
heater.
a. To be a qualified gas heater service person, you
must have sufficient training and experience to
handle all aspects of gas-fired heater installation,
service and repair. This includes the task of
installation, troubleshooting, replacement of
defective 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.
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 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
product must be installed by a gas fitter licensed in
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 supplier, a local
licensed electrician, the local fire 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 and Handling of Liquefied Petroleum
Gas and/or
-- 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
Installation Code.
-- CSA C22.1 Par t 1 Standard Canadian
Electrical Code, and CSA C22.2 No.3,
Electrical Features of Fuel Burning Equipment.
3. We cannot anticipate every use which maybe made of
our heaters. Check with the local fire safety authority
if you have questions about 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
6
redundant gas control valve.
7. Do not block air intakes or discharge outlets of the
heater. Doing so may cause improper combustion 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
replaced 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 hose assembly shall be that specified by the
manufacturer. See parts list.
9. This heater is 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 14 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 should be inspected for proper operation
by a qualified service person before each use and 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.
14. If gas flow is interrupted and flame goes out, do 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 form the heater and stored in
accordance with the Standard for the Storage and
Handling of Liquified Petroleum 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 pigtail
connector’s P.O.L. fitting at the container’s gas supply
valve.
Installation Instructions
GENERAL
WARNING
WARNING
Fire and Explosion Hazard
Can cause property damage, severe injury or death
■ To avoid dangerous accumulation of fuel gas, turn
off gas supply at the heater service valve before
starting installation, and perform gas leak test after
completion of installation.
■ 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 normal hand
pressure the gas control valve should be replaced by
a qualified service technician. Force or attempted
repair may result in fire or explosion.
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
qualified service agency for repair or replacement.
2. Make sure the heater is 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. For outdoor installations, only the following
air distribution devices may be used:
-- 18 in./43.7 cm Dia. x 12 ft./3.66 m Duct:
Part #22835
-- End Diffuser: Part #23189
DO NOT USE ANY OTHER LENGTH OF DUCTWORK OR
FIELD FABRICATED DUCT, TARPS, STOVE PIPE, ETC.
ON THIS HEATER.
4. The heater’s gas pressure regulator (with pressure
relief valve) must be protected from adverse weather
conditions (rain, ice, snow) as well as from building
materials (tar, concrete, plaster, etc.) which can affect
safe operation and could result in property damage or
injury.
5. 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.
6. Check all connections for gas leaks using approved
gas leak detectors. Gas leak testing is performed as
follows:
■
■
■
■
Fire 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 damage,
personal injury or death.
-- 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.
-- Fur thermore tighten the gas connections as
necessary 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
connections, 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.
7. A qualified service agency must check for proper
operating gas pressure upon installation of the
heater.
8. Light according to instructions on heater or within
owner's manual.
9. The heater must have the proper regulator for the
application.The gas pressure regulator supplied on
this heater is approved for both propane and natural
gas use. Contact your gas supplier, or the L.B. White
Co., Inc. if you have any questions.
10. This heater is configured for use for L.P. gas vapor
withdrawal. Do not use the heater in an L.P. gas liquid
withdrawal system or application. If you are in doubt,
contact the L.B. White Co., Inc.
7
11. The heater must be installed so as not to interfere
with or obstruct normal exits, emergency exits, doors
and walkways.
12. Railing, fencing or suitable substitute materials must
be used to keep the heating equipment from any
people using and visiting the structure.
13. The heater shall be located so that rain, ice, or snow
drainage from the structure does not af fect
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.
14. The ground and surrounding terrain must be cleared
of any combustible vegetation and other combustible
materials when the heater is utilized outside.
15. Eventually, like all electrical/mechanical devices, the
thermostat can fail. Thermostat failure may result in
an underheating condition. The thermostat should be
tested to make sure it turns the heater on and off
within a temperature differential of ±3°F (±1.5 °C).
16. 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.
17. 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 properly qualified service
personnel before placing the heater back into use.
GAS SUPPLY SIZING
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 factors are specific to a site.
Therefore, a degree of experience and judgement is
required to select the proper propane supply.
Although experience is the best guide, the following
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 conditions prevail at a specific site,
adjustments can be made on the basis of experience.
Recommended Gas Supply
Propane Supply Tank:
500 gall./1892 litre
1000 gall./3784 litre
Heater(s)/Container:
1
2
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 accordance with NFPA 58 or
CSA B149.1.
CONNECTING HOSE TO HEATER
1. Thread swivel onto connector at gas inlet of heater.
See Fig. 1. Tighten securely.
2. The hose may be coiled up and hung on the hose
hanger, with the regulator stored within the regulator
storage bracket.
8
FIG. 1
SWIVEL
CONNECTING REGULATOR TO GAS SUPPLY
4. Thread connector’s POL fitting counter-clockwise into
the tank valve. Tighten securely. See Fig. 2.
PROPANE HEATERS
1. Open the tank’s cover.
5. Open the tank valve.
2. Assemble bushing, pigtail connector and regulator as
shown. Tighten connections securely. See Fig. 2.
3. Form the connector to ensure the regulator will be
supported by the tank, and the tank valve cover will
protect the regulator from weather conditions.
6. Check all connections with an approved leak detector.
Close the tank’s cover.
7. When storing or transporting the heater, ensure the
connector’s fitting is protected from damage and dirt
entry.
FIG. 2
NATURAL GAS HEATERS
3/4x 1/4 BUSHING
---
The regulator only should be used if the supply
pressure to the heater is above the maximum inlet
pressure stated on the heater’s dataplate.
----
Connect the regulator to the natural gas supply line.
Gas supply pressure to the regulator must be a
minimum of 2 PSI/13.7 kPa.
POL
PIGTAIL CONNECTOR
9
Installation of Heater
INSIDE STRUCTURE
FIG. 3
500 GALL./1892 LITRE
500 GALLON
SUPPLY
GASGAS
SUPPLY
SIDE WALL
(MINIMUM)
MINIMUM SAFE DISTANCE FROM
TOP, SIDES, AND BACK OF HEATER
TO COMBUSTIBLES IS 11 FOOT
FT./0.3 m
MINIMUM SAFE DISTANCE
FROM GAS SUPPLY TO HEATER
IS (3.04
6 FEET
IS 10 FEET
m)
MINIMUM SAFE DISTANCE FROM
BLOWER OUTLET TO COMBUSTIBLES
FEET/1.83 m
IS 66 FEET
DISTANCE FROM HEATER TO SIDE WALL MUST
COMPLY WITH LOCAL CODES, AND BE ACCORDING
TO MANUFACTURER'S REQUIREMENTS
OUTSIDE STRUCTURE
(Air Distribution Accessories)
A.
Duct Kit
Accessory # 22835
FIG. 4
SLOTS
1.. Extend duct kit to 12 feet/3.6 meter length.
2.
Mount duct to blower outlet of heater by inserting
tabs on duct adapter into vertical and horizontal slots
located at top and sides of blower outlet. See Fig. 4.
Push down on duct adapter to secure adapter into
slots. See below for for typical installation of heater
located at exterior.
DUCT ADAPTER
WITH TABS
TAB
DUCT KIT
FIG. 5
500 GALLON
500 Gall./1892
LITRE
GAS
GASSUPPLY
SUPPLY
SIDE WALL
(MINIMUM)
MATERIAL
DRAPED
TENT DRAPE
OVER
OVERDUCT
DUCT
MINIMUM SAFE DISTANCE
FROM GAS SUPPLY TO
IS 610FEET
FEET (3.04 m)
HEATER IS
DUCT KIT
DISTANCE FROM HEATER TO SIDE WALL MUST
COMPLY WITH LOCAL CODES, AND BE ACCORDING
TO MANUFACTURER'S REQUIREMENTS
10
B.
Attaching End Diffuser to Duct
Accessory # 23189
CLAMP
FIG. 6
DUCT ADAPTER
1. Loosen screw on duct clamp so clamp is easily
positioned over ribs at end of flexible duct.
DIFFUSER
2. Slide duct adapter into duct end. Duct adapter tabs
must be facing away from duct and are located at 3,
9 and 12 o’clock positions. See Fig. 6.
TABS
3. Tighten screw clamp so adapter is held securely
within duct.
FIG.7
4. Insert tabs of adapter into slots on air diffuser back.
5. Push down on adapter so tabs are seated firmly to air
diffuser.
TENT SIDE WALL
6. Locate diffuser under side wall. See Fig. 7.
TENT DRAPED
MATERIAL
DRAPED
WITHIN
DIFFUSER
WITHIN
DIFFUSER
CHANNEL
CHANNEL
OPTIONAL AIR DIFFUSER
11
Start-Up Instructions
For initial start-up after heater installation, follow steps 1-5.
For normal start-up, set the thermostat above room
temperature.
1.
Connect electrical cord to an approved electrical
outlet.
2.
Set thermostat to desired room temperature.
3.
A selector switch is located on the back of the heater.
This switch allows you to either heat or ventilate (no
heat). See Fig. 8 for selector switch positions.
b.
Position the selector switch to heat.
See Fig. 8.
A red light within the switch will come on. The fan
motor will start, the igniter will spark and ignition will
occur. The thermostat will cycle the heater on or off
based upon temperature setting.
B. Ventilation Mode Operation
When the selector switch is positioned to vent,
the red light will NOT be on. The fan motor will start,
but the igniter will not spark, nor will ignition occur.
This feature is used only when air circulation is
required. The heater will not cycle on its thermostat
setting. To discontinue the ventilation feature,
position the switch to off or heat.
FIG. 8
C. Off O
Position the switch to midpoint. O
ATTENTION
■ It is normal for air to be trapped in gas hose on new
installations. The heater may attempt more than one
trial for ignition before air is finally purged from line and
ignition takes place.
4.
The direct spark ignition (DSI) control board within
this heater is self-diagnostic. The board works in
conjunction with a light emitting diode (L.E.D.) built
into the selector switch. The L.E.D. will flash a
specific continuous flash pattern depending on a
problem that occurs. Match specific flash pattern
given by L.E.D. to troubleshooting label applied to
inside of burner cap access panel of the heater. The
troubleshooting label identifies the causes of the
problem as it relates to specific flash pattern and
remedies to correct the problem. See also
“Troubleshooting Data” within this Owner’s Manual.
5.
Do not exceed input rating stamped on nameplate or
manufacturer’s recommended burner orifice
pressure for size orifice(s) used. Make certain that
the primary air supply to main burner is open and
free of dust, dirt and debris for complete, proper
combustion.
A. Heating Mode Operation
a.
Open all manual fuel supply valves. Check for gas
leaks using an approved leak detector. The gas
control valve on the heater has a manual shut-off
feature incorporated into the valve assembly. Ensure
the indicator is turned to the on position. See Fig 9.
FIG. 9
12
Shut-Down Instructions
If the heater is to be shut down for cleaning, maintenance,
or repair, follow steps 1-5. Otherwise, set the thermostat to
OFF or NO HEAT for standard shut-down.
4. Position selector switch to off O
5. Disconnect the heater from its gas and electrical
supplies.
1. Close the gas supply valve.
2. Allow the heater to burn off any fuel gas remaining in
the gas supply line.
Note: When the thermostat cycles the burner off, the fan
motor will continue to run for 1minute, allowing the
heat chamber to cool. After 1 minute, the fan motor
will shut off.
3. Set the thermostat to OFF or NO HEAT.
Gas Selector Valve
1. This feature allows the heater to operate on either
propane or natural gas without changing out the
burner orifice. The gas selector valve is located
between the gas control valve and the burner. Gas
selection is made by repositioning the valve’s handle.
THIS IS NOT A MANUAL GAS SHUT OFF VALVE.
2. Refer to Figs. 10 and 11. The valve handle must be
properly positioned for the specific gas being used.
FIG. 10
3. The handle must be fully set at 90 degrees to gas
flow (propane gas) or parallel to gas flow (natural gas)
for proper operation. Do not operate the heater with
the valve handle set between either postion,
otherwise improper operation will occur.
4. The valve’s handle can be locked to prevent improper
positioning. Use the holes provided on the valve’s
body and handle. See Fig. 12.
FIG. 12
HANDLE POSITION
PROPANE GAS
FIG. 11
HANDLE POSITION
NATURAL GAS
13
14
Cleaning Instructions
WARNING
Fire, Burn, and Explosion Hazard
■ This heater contains electrical and mechanical components in the gas management, and safety systems.
■ Such components may become inoperative or fail due to dust, dirt, wear and aging.
■ Periodic cleaning and inspection as well as proper maintenance are essential to avoid serious injury or property
damage.
1. Before cleaning, shut off all gas supply valves and
disconnect electrical supply.
2. The heater should have dir t or dust removed
periodically:
a. Before each use give the heater a general
cleaning using compressed air or a soft brush or
dry rag on its case and internal components. At
this time, dust off the motor case to prevent the
motor from over-heating.
b. At least once a year, give the heater a thorough
cleaning. At this time, remove the fan and motor
assembly and brush or blow off the fan blade
assembly. Additionally, make sure the burner air
inlet venturi ports and the casting are free of dust
accumulation.
WARNING
Do not use a pressure washer, water, or liquid cleaning
solution on any gas controls. Use of a pressure washer,
water, or liquid cleaning solution on the control
components can cause severe personal injur y or
property damage due to water and/or liquids:
■ In electrical components, and wires causing electrical
shock or equipment failure.
■ On gas control valves causing corrosion which can
result in gas leaks and fire or explosion from the leak.
Clean all components of the heater with pressurized air,
a dry brush, or a dry cloth.
Maintenance Instructions
1. The area surrounding the heater shall be kept clear
and free from combustible materials, gasoline, and
other flammable vapors and liquids.
2. Have your gas supplier check all gas piping annually
for leaks or restrictions in gas lines.
3. Regulators must be periodically inspected to make
sure the regulator vents are not blocked. Debris,
insects, insect nests, snow, or ice on a regulator can
block vents and cause excess pressure at the heater.
4. Regulators can wear out and function improperly.
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.
5. Check all wiring associated terminals and electrical
components within the heater for corrosion, frayed or
cut insulation, tight connections, etc. Repair or
replace as necessary.
6. Review all heater markings (i.e. wiring diagram,
14
warnings, start-up, shut-down, troubleshooting, etc.)
at the time of maintenance for legibility. Make sure
none are cut, torn, or otherwise damaged. Any
damaged markings must be replaced immediately by
contacting the L.B. White Co., Inc. Dataplates, startup and shut-down instructions and warnings are
available at no cost. A nominal charge will be applied
for wiring diagrams.
7. Check the heater’s fan drive belt. Make sure the belt
is not cracked. If so, replace it. Additionally, ensure
the belt is not slipping, that belt tension is proper and
sheaves are properly aligned and not worn. These
procedures should be done whenever the heater is
being readied for use.
8. Lubricate the bearings once a month. Use NLGI grade
2 mineral oil lithium or lithium base grease.
Service Instructions
GENERAL
thermostat can be tested by disconnecting the leads
at the component, and jumpering the leads together.:
WARNING
Burn Hazard
■ Heater surfaces are 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.
■ All component parts must be replaced if defects are
found.
■ Failure to follow this warning will result in fire or
-- Reconnect the electrical supply and open fuel
supply valves.
-- If the heater lights, the component is defective
and must be replaced.
-- Do not leave the jumper on or operate the heater if
the part is defective. Replace the part immediately.
-- An alternate method for checking the components
is to perform a continuity check..
4. The air proving switch must not be jumpered. If
jumpered, the ignition control will not allow heater
operation. Test the air proving switch for continuity.
If defective, replace the switch
5. Open the respective case panel for access to burner
or fan related components.
explosions, causing property damage, injury, or death.
1. Close the fuel supply valve to the heater and
disconnect the electrical supply before servicing
unless necessary for your service procedure.
2. 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.
6. For reassembly, reverse the respective service
procedure. Ensure gas connections are tightened
securely.
7. After servicing, start the heater to ensure proper
operation and check for gas leaks.
8. If pulley or fan keys are lost during ser vice,
replacements are made by using 4.7 mm. square x
2.54 cm. bar stock. Otherwise, order Part #22955.
3. The high limit switches, HEAT/VENT switch, and
BELT REPLACEMENT
Check the fan and motor grooves for dirt Clean the
pulleys if needed.
1. Remove belt guard from heater.
2. Push the belt tensioner clockwise for removal of the
belt . See Fig. 13.
FIG. 13
4. Install new belt. Using a straight edge, check motor
and fan pulley alignment. Contact must be made at
edges of both pulleys. See Fig. 14.
FIG. 14
FAN
SHEAVE
FAN
PULLEY
STRAIGHT
EDGE
MOTOR
SHEAVE
MOTOR
PULLEY
3
TENSIONER
15
BELT TENSIONER
1.
The tensioner automatically applies proper tightness
to the belt during operation, and eliminates the need
for manually retensioning the belt after service.
2.
When replacing the belt, and during routine
maintenance, ensure tensioner is positioned as
shown in Fig.15 after belt removal.
FIG. 15
TENSIONER PARALLEL
TO DIAGONAL SUPPORT
FAN AND MOTOR PULLEYS
1.
Remove belt guard from heater.
2.
Remove belt from pulleys. See Belt Replacement.
3.
Loosen set screw on fan and motor pulleys. See Fig.
16 for typical set screw location.
4.
Remove pulleys and keys from fan shaft and motor.
SET SCREW
SHAFT KEY
FIG. 16
FAN DRIVE COMPONENTS TROUBLESHOOTING
Refer to the following table to identify basic problems,
causes and cures associated with V-Belt drive systems.
PROBLEM
Belt slips
Belt Breaks
CAUSE
Pulleys worn
(Belts bottoming out
in grooves)
CURE
Replace pulleys
Oil or grease on belt
Clean pulley or
belt.
Improper belt
installation
Belt pried over
pulleys using
sharp or pointed
tools. Install new
belt properly.
Improper belt
tension.
16
Ensure belt
tensioner is
positioned
properly.
PROBLEM
Belt Jumps
Pulley
Grooves
CAUSE
Drive misaligned
Dirt entering pulley
CURE
Check and realign
Remove belt,
clean the pulleys
Belt hitting belt guard
Realign guard
(check for loose
or missing guard
screws)
Belt
Cracking
Dirt or grease on
belt or aged belt
Remove dirt or
replace belt.
Belt wearing
rapidly
Belt hitting belt guard
Realign guard
(check for loose
or missing guard
screws)
Worn pulley
Replace pulley
Dirt in pulleys
Remove dirt
FAN MOTOR
1.
Remove belt guard from heater.
2.
Remove fan belt.
3.
Remove motor pulley from motor and mounting
hardware. See Fig. 17.
4.
Open electrical supply access panel on motor and
disconnect power supply wiring. See Fig. 18.
FIG. 18
FIG. 17
HARDWARE
■ Ensure motor and fan pulleys are properly aligned
before tightening pulleys to motor shaft.
■ Refer to alignment procedures within manual
■ Motor bearings are permanently lubricated.
AIR PROVING SWITCH
1.
Remove the screws and turn switch assembly so the
paddle on the switch arm can be pulled through
oblong hole on side of fan housing. See Fig. 19.
2.
Disconnect the leads from the air proving switch.
FIG. 19
OBLONG HOLE
17
IGNITER ASSEMBLY
1.
Remove burner access panel. See Fig. 20.
3.
Disconnect high voltage ignition lead. Remove the
screws. See Fig. 22.
FIG. 20
FIG. 22
SCREWS
IGNITION LEAD END
2.
The igniter assembly is located at the top of the
burner casting. Remove the two screws securing the
mounting bracket to the burner. See Fig. 21.
FIG. 21
■ The igniter and ground rod should be cleaned during
routine maintenance to maintain proper ignition.
FRONT VIEW
3/16 in./4
5/32mm
IN IGNITOR BOTTOM
TO BURNER TOP
SCREWS
MOUNTING
BRACKET
-- Use steel wool or emery cloth.
-- Rub briskly to remove buildup of dust, dirt , and
oxide.
■ Check the igniter’s ceramic base for cracks.
-- Replace the igniter if cracks are found.
IGNITOR/SENSOR
IGNITOR CABLE
TOP VIEW
ELECTRODE GAP IS 1/8
1/8 IN
in./3 mm
AND CENTERED OVER BURNER PORT
BURNER
PORT
18
TESTING THE MANUAL RESET HIGH LIMIT SWITCHES
WARNING
Fire Hazard
■ Do not operate the heater with the high limit switch
bypassed.
3. Within a minute, you should hear a pop coming from
the switch, which indicates the contacts of the switch
have opened.
■ Operating the heater bypassed high limit switch may
4. Allow the switch to cool for about a minute before
firmly pressing its reset button. The switch may have
a red cap over the button. If you removed the cap to
reset the switch, ensure you put it back on.
This heater has two limit switches. One is located at the
burner end of the heater. The other is located on the fan
housing at the motor end of the heater. Their purpose is to
safely shut the heater down if the appliance should
overheat.
5. Check for electrical continuity across the switch
terminals to make sure the contacts have closed.
lead to overheating, possibly resulting in a fire, with
subsequent damage to the heater or property damage.
Both high limit switches should be tested a minimum of
once per year when the heater is given a thorough cleaning.
FIG. 23
RESET BUTTON
1. Remove the high limit switches.
2. Holding a switch by one of its mounting legs, apply a
small flame only to the sensing portion on the back of
the switch.See Fig.23. Be careful not to melt the
plastic housing of the switch when conducting this
test.
SENSING
SURFACE
TERMINAL
MOUNTING
LEG
FLAME
BURNER ORIFICE AND GAS CONTROL VALVE
1. Remove hose and pipe nipple from control valve inlet.
5. Remove burner retaining bolt from under base at gas
control end of heater. See Fig. 26.
2. Open burner end door.
FIG. 26
3. Remove screws from gas control bracket and
disconnect control valve’s electrical wiring. See Fig.
24.
FIG. 24
BOLT
SCREW
6. Lift and pivot the gas train assembly so orifice is
exposed. See Fig. 27. Remove control valve or orifice
as needed.
4. Remove burner access panel. See Fig. 25.
FIG. 27
FIG. 25
ORIFICE
19
FAN WHEEL, BEARINGS, AND SHAFT
1.
Remove the two lower case screws from both case
sides. See Fig.28.
2.
Spread the sides slightly so drive assembly with fan
can be slid from heater.
3.
Refer to the Figs. 29 & 30 for servicing of fan wheel,
bearings, or shaft.
FIG. 28
REMOVE
FIG. 29
FAN WHEEL
SCREWS 3/8
BOLT, 3/8-16 X 1 1/4
WASHER, 3/8"
FAN PANEL
SHAFT
BEARINGS
FAN PULLEY
NUT, HEX LOCK, 3/8"
BOLT,
5/16-18 X 1
BOLT, 3/8-16 X 1
WASHER, 5/16
WASHER, 3/8"
MAIN SUPPORT
NUT, 5/16
TENSIONER PARALLEL TO
DIAGONAL SUPPORT
FAN PANEL FLANGES
TOWARD PULLEY
FIG. 30
FAN WHEEL
SHAFT PULLEY FLUSH
WITH SHAFT END
PULLEY HUB
FAN HUB
FLUSH WITH
SHAFT END
EARING RACE FLUSH
WITH FRONT EDGE
OF SHAFT FLAT.
SCREWS TIGHTENED
TO FLATS.
MAIN SUPPORT
SHAFT FLAT
20
Gas Pressure Checks
C. Reading Pressures
WARNING
■ Do not disassemble the gas control valve.
■ Do not attempt to replace any components of the gas
control valve.
■ The gas control valve must be replaced if any physical
1. With the heater operating, the pressure gauges
should read the pressures specified on the dataplate.
2. Do the readings at the inlet and outlet pressure
gauges agree with that specified on the dataplate?
If so, then no further checking or adjustment is
required. Proceed to section D.
damage occurs to the control valve assembly.
■ Failure to follow this warning will result in fire or
explosions, leading to injury or death to humans, and
property damage.
3. If the inlet pressures do not agree with that specified
on the dataplate, then the regulator controlling gas
pressure to the heater requires adjustment.
4. If the inlet pressure is correct but the burner manifold
pressure does not agree with that specified on the
dataplate, then the gas control valve’s internal
pressure regulator needs adjsutment:
ATTENTION
■ The following explains a typical procedure to be followed
in checking gas pressures.
■ The gas pressures will vary depending upon fuel type.
■ Consult the dataplate on the heater or page 4 in this
manual for specific pressures to be used in conjunction
with this procedure.
■ Gas pressure measured at the inlet to the gas valve is
Inlet Pressure and gas pressure measured at the outlet
of the gas valve is Burner Manifold Pressure.
MATERIALS REQUIRED
-- Remove the regulator cap on the control valve.
-- Using a standard screwdriver turn the adjusting
screw clockwise (to increase pressure) or counterclockwise (to decrease pressure) until the burner
manifold pressure is set.
-- Install regulator cap.
D. Completion
1. Once the proper inlet and burner manifold pressures
have been confirmed and/or properly set, close the
fuel supply valve to the heater and allow the heater to
burn off any gas remaining in the gas supply line.
(To be secured through local purchase)
2. Disconnect the heater from its electrical supply and
close fuel supply valve.
Quantity
2
3. Remove the gauges.
Description
Gas pressure gauges capable of reading
up to 35 in.W.C./8.7 kPa
A. Preparation
4. Install pressure tap plugs.
1. Disconnect the heater from the electrical supply and
close the fuel supply valve to the heater.
5. Open fuel supply valve and reconnect electrical
supply to heater. Start the heater and check for gas
leaks.
2. Open the case access panel at burner end of heater.
6. Set thermostat to desired temperature.
3. Brush or blow off any dust or dirt in the vicinity of the
gas control valve.
FIG. 31
OUTLET PRESSURE TAP
INLET PRESSURE T
TAP
B. Gauge Installation
1. Locate the gas control pressure taps. See Fig. 31.
Remove the pressure tap plugs using an allen key.
2. Securely connect pressure gauges at these points.
3. Open the fuel supply valves to the heater and
reconnect the heater electrical supply.
4. Start the heater
GAUGE AT VALVE INLET
OUTLET
GAUGE AT VALVE INLET
INTERNAL PRESSURE REGULATOR
21
Troubleshooting Information
READ THIS ENTIRE SECTION BEFORE BEGINNING
TO TROUBLESHOOT PROBLEMS.
WARNING
■ This heater can start at any time.
■ Troubleshooting this system may require operating the
unit with line voltage present and gas on. Use extreme
caution when working on the heater.
■ Failure to follow this warning may result in property
damage, personal injury or death.
The following troubleshooting guide provides systematic
procedures for isolating equipment problems. This guide is
intended for use by a QUALIFIED GAS HEATER SERVICE
PERSON. DO NOT ATTEMPT TO SERVICE THESE HEATERS
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 AC voltage and
resistance.
• Low Pressure Gauge - for checking inlet and outlet
pressures at the gas control valve against dataplate
rating.
■ Visually inspect equipment for apparent damage.
■ Check all wiring for loose connections and worn
insulation.
Refer to the system operation sequence in this section to
gain an understanding as to how the equipment operates
during a call for heat. Understanding the sequence of
operation of the ignition module and related components is
esential as it will relate directly to problem solving provided
by the flow charts.
The ignition control module is self-diagnostic. The red light,
located within the selector switch, will flash a specific light
pattern depending upon the problem which is diagnosed. To
effectively use the flow charts, you must first identify what
the problem is by the light pattern of the L.E.D. (light
emitting diode) diagnostic light. If the light is flashing, the
flash pattern will be followed by a pause and then a repeat
of the flash pattern until the problem is corrected. Refer to
the tables below to identify what page to refer to when
troubleshooting any problems.
The L.E.D. light will only be on when the selector switch is
positioned to HEAT and the thermostat is set above room
temperature. The light will not be on when the selector
switch is positioned to VENT.
Heating Mode Problems
Page
L.E.D. is steady on. No flash pattern. . . . . . . . . . . . . . . . . . . 23
L.E.D. light is not on. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
22
Heating Mode Problems (Cont.)
Page
L.E.D. diagnostic light is flashing:
A. One Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
B. Two Times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
C. Three Times . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
D. Four Times . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
E. Five Times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Ventilation Mode Problems
Page
A. Motor Does Not Run. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
B. Motor “Hums,” Does Not Run . . . . . . . . . . . . . . . . . . . . . . 27
C. Motor Runs with Low Air Output. . . . . . . . . . . . . . . . . . . . . 27
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 necessar y to obtain
information on disassembly and replacement procedures of the
component once the problem is identified by the flow chart.
DIRECT IGNITION OPERATION SEQUENCE:
-- Selector switch is set to heat.
-- Line voltage is sent to ignition control and to transformer.
-- Red light. on selector switch is illuminated.
-- Transformer reduces line voltage to 24 volts which is sent to
thermostat.
-- The thermostat calls for heat.
-- The thermostat sends 24 volts to ignition control.
-- Ignition control module performs self safety check.
-- Internal components are tested.
-- Air proving circuit is checked.
-- Ignition control module begins ignition trial sequence.
-- Ignition control module sends 24 volts to air proving switch.
-- Ignition control sends line voltage to motor relay
-- Motor relay closes and fan motor starts.
-- Air proving switch closes and 24 volts are returned to the
ignition control module.
-- Ignition control module sends high voltage to the igniter .
electrode.
-- Igniter sparks.
-- Ignition control module sends 24 volts to the gas control
valve through the high limit switches.
-- Gas control valve opens.
-- Ignition occurs.
-- Igniter continues to spark until flame proving occurs.
-- Ignition spark is cut off.
-- Gas valve stays open.
-- Gas control modulates based upon thermostat.
-- Room warms to desired temperature.
-- Thermostat is satisfied.
-- Gas control closes, burner shuts down.
-- Fan motor continues to run for 1 minute , cooling the
heat chamber.
-- Fan motor stops.
-- Heater shuts off.
-- Process starts again on a call for heat.
IGNITION FAILURE SEQUENCE:
-- Trial for ignition takes approximately 10 seconds.
-- If ignition module does not sense a flame within the ignition
trial, the module goes into safety lockout (3 flash pattern.)
-- Gas valve closes.
-- Ignition spark shuts off.
-- Fan motor stops.
-- To retry for ignition, the systems must be reset:
-- Turn the thermostat down and then up to call for heat or
unplug heater and plug it back in or
-- Position selector switch to off and then back to on.
23
LED Light
Not On
Problem
LED Constant On
Set Selector
Switch to Heat
No
Is Selector
Switch Set to
Heat?
Yes
Normal Operation
HEATING MODE
Set Thermostat
Above Room
Temperature.
No
Is
Thermostat
Set Above Room
Temperature?
No
Is Fan Running?
Yes
No
Is Proper
Voltage Supplied
to Heater Power Cord
and Through
Power
Cord?
No
Is
Thermostat
Defective? Check
for Continuity.
See “One Time Flash”
No
Does Heater
Light?
Yes
Yes
Yes
Check Dataplate for Electrical
Supply Requirements.
Provide Proper Voltage From
Electrical Supply. Check
Circuit Breakers in Building
Electrical System. Check
Power Cord for Continuity.
Yes
Check Electrical
Connections and Power
Supply to Transformer.
Repair as Necessary.
No
Is
Proper
Voltage Supplied to Yes
Transformer?
Replace Thermostat
No
Are 24 Volts
Supplied from
Transformer?
Poor Electrical
Connection or Broken
Wire Present. Repair
or Replace.
No
Are 24 Volts
Supplied to
Ignition
Module?
Replace Ignition Module.
Yes
If Electrical Connections
are Good, Replace L.E.D.
Replace Transformer
L.E.D. Light is Disconnected
or is Defective.
Yes
24
One Time
Air proving Switch
Contacts Are Closed
before Fan Motor
Starts.
Pattern Begins 5
Seconds After
Condition
Occurs.
LED Flashing
Problem
Repair Wire or Connection
No
Is Airflow Switch
Binding?
Yes
Repair Air-Proving Switch
Replace Air-Proving Switch
Yes
Yes
Defective Wire or Loose Connection
to Air-Proving Switch
No
Is Air-Proving
Switch Shorted?
(Check Continuity on
Air-Proving Switch in
Open and Closed
Positions).
No
Is
Air Proving Switch
Stuck Closed?
Check Continuity.
Repair.
25
Two Times
Indicates Lack
of Air Proving in
Fan Section of
Unit.
Flash Pattern
Begins Within
90 Seconds
After Condition
Occurs.
No
Is Shaft
Seized Up in Fan
Bearings?
No
Is Fan Binding?
No
Are Fan Pulleys
Loose?
No
Does Fan Belt
Slip?
No
Is
Fan Belt Loose?
No
Is
Air-Proving Switch
Stuck Open? Check
Continuity.
Yes
Yes
Yes
Yes
Yes
Yes
Check Bearing(s).
Replace Bearings if
Necessary.
Repair or
Replace.
Tighten Pulley Set Screws.
Fan Belt is Worn or Has
Dirt on Sidewall of Belt.
Check Sheaves for Dirt or
Foreign Materials.
Tighten Fan According to
Prescribed Methods in this
Owner’s Manual.
Replace Air-Proving Switch.
No
Is Airflow
Switch Binding?
Yes
Repair.
Provide Proper Voltage,
Check Electrical Supply,
Circuit Breakers, Etc.
No
Is
Proper
Voltage Supplied to
Heater Power
Cord?
No
Is
Ignition Module
Receiving Proper
Voltage?
No
Is
Ignition Control
Module Sending Proper
Voltage to Motor
Relay?
No
Is Proper
Voltage Supplied
to Fan Motor?
No
Is Fan Loose On
Motor Shaft?
Yes
Yes
Yes
Yes
Yes
Repair or Replace
Wiring and Connections
Defective Wiring or
Connections to Motor
Defective Ignition Module.
Replace Module.
Replace Motor Relay.
Defective Motor or
Capacitor. Replace
Motor or Capacitor
Tighten Fan Blade Set Screw
26
Five Times
Four Times
Lock Out From
Flame Sense
Loss
Yes
Defective Gas
Valve. Replace
Gas Valve.
Connect High
Voltage Lead
No
Is
Igniter High Voltage
Lead Connected?
No
Does Ignitor
Spark?
Yes
Yes
Yes
B. Defective, Improperly
Gapped, or Dirty
Igniter, Replace,
Regap, or Clean
Igniter.
If control module does not reset, then replace the it (Internal board fault.)
If module resets, then have qualified electrician check power source for
power quality problems. (Frequency, line noise, line spikes, loose
connections, too small wire gauge.)
Check Igniter Gap
and Regap, if
Necessary, to
Specifications.
No
Is Ignitor
Properly
Gapped?
Yes
If High Limit Switch is Tripped,
Reset the Switch and Determine
Cause of High Limit Tripping.
(The Switch May Have a Red Cap
Over its Reset Button. If You
Removed the Cap to Rest the
Switch, Ensure You Put it Back On.)
A. Check High Voltage
Lead For Continuity
and Tight
Connections.
Replace if Defective.
No
Is
High Limit
SwitchTripped?
Check
Continuity
Flame sense related problems. Check for cracked or dirty flame sensor,
improperly positioned sensor, or poor flame sense ground.
Defective Wires
or Connections,
Repair or Replace.
No
Are
24 Volts
Supplied to
Gas Valve?
No
Yes
Provide Proper Gas
Supply and Pressure
to Heater. Refer to
Dataplate
No
No
Connect Proper
Gas Supply to
Heater. Open All
Gas Shutoff
Valves.
Is
Proper Gas
Yes
Pressure Supplied
to Heater?
Is
Proper Fuel
Supplied to Heater Yes
Inlet?
Does Gas
Solenoid Valve Open?
(Turn Unit On. Should Hear
Audible Click When Valve
Opens, Approx. 4-5 Seconds
After Power is
Supplied
To Unit.
Three Times
Indicates Burner
Failure.The Control
Module Has Gone
into Safety Lockout.
Flash Pattern Begins
Within 30 Seconds
After Condition
Occurs.
Reposition
Igniter.
(See Service
Instructions)
No
Is
Ignitor Gap
Positioned
Properly?
27
Motor Runs
but with LOw
Air Output
Problem
Motor “Hums”.
Does Not Run.
Problem
Motor Does
Not Run
Problem
Yes
Yes
Yes
Yes
Yes
Check all Electrical
Connections. Verify
Proper Voltage with a
Voltage Tester. Contact
a Qualified electrician if
Proper voltage is not
Present.
No
Is
Proper Voltage
Supplied to
Selector Switch
from Power
Cord?
Reduce Tension. Refer to Page 16.
Reconnect Wires to Capacitor.
Check for Damage to Motor and Fan Assembly
and Housing. Repair or Replace as Necessary.
Move the
Selector Switch
to the VENT
Position.
No
Is
Selector
Switch Set to
VENT?
Check All Drive Components for Wear. Check for
Broken Belt or for Belt Slipping. Check Sheaves
for Proper Alignment, Dirt in Sheave Grooves, etc.
Defective Capacitor.
Replace the Motor.
No
Belt
Overtensioned.
No
Are Wires
Disconnected
from Capacitor?
No
Is Fan Binding
on Housing?
Plug heater in.
No
Is Heater
Plugged In?
VENTILATION MODE
Yes
Replace
Selector Switch
No
Is
Proper Voltage
Supplied from
Selector Switch
to Motor?
Yes
Replace Motor
GY
OR/OU\O
BK
NEUTRAL/
NEUTRE/
NEUTRO
Y
Y
Y
BR
R
BK
BK
BK
M
W
BK
G
BR
TX
MR
6
0
2
HL
G
Y
4
HL
BR
W
BK
8
1
BK
BR
W
BK
BK
BK
BK
BK
W
BK
W
W
W
W
W
BK
BK
BK
BK
W
Y
Y
G
G
G
G
G
G
G
BR
C
MV
GV
BK
BK
BK
BK
W
BK
G
W
SS
BK
BK
HEAT/
CHALEUR/
INICIO
R
W
OFF/
FERME/
W
APAGADO W
VENT/
VENTILACIÒN
PC
W
T
24V
MR
1
6 8
T
HL
HL
APS
C/COM
L1
IND
LED
MV
PS2
PS1
W
FS
R
X
IGC
Black/Noir/Negro
Blue/Bleu/Azul
Brown/Bruin/Marròn
Green/Vert/Verde
Gray/Gris
Red/Rouge/Rojo
White/Blanc/Blanco
Yellow/Jaune/Amarillo
150-29935 REV.A
: Earth Ground/Mise a la terre/
Conexiona tierra
: LED/Voyant DEL/Luz LED
APS: Air Proving Switch/
Interrupteur de Vérification
de Débit d'Air/Interruptor
de Comprobaciòn de Aire
DSI: Direct Sense Igniter/
Allumeur Direct/Encendedor
GV: Gas Control Valve/Valve de
Commande de Gaz/Valvula
de Control de Gas
HL: High Limit Heat Switch/
Interrupteur de Limite Élevée/
Interruptor de Lìmite Superior
IGC: Ignition Control/
Control de Allumage/
Control de Encendido de Chispa
M: Motor/Moteur
MR: Motor Relay/ Relais de Moteur/
Relé del Motor
PC: Power Cord/Cordon Electrique/
Cordon de Potencia
SS: Selector Switch/Sélecteur/
Interruptor de Selecciòn
T:
Thermostat/Termostato
TX: Transformer/Transformateur/
Transformador
BK:
BL:
BR:
G:
GY:
R:
W:
Y:
IF ANY OF THE ORIGINAL WIRING AS SUPPLIED WITH THE HEATER MUST BE REPLACED, IT MUST BE REPLACED WITH WIRING MATERIAL HAVING A TEMPERATURE RATING OF AT LEAST 302F (150 C).
S'IL FAUT REMPLACAR UN DES FILS D'ORIGINE DE L'APPAREIL, IL FAUT LE REPLACER PAR UN FIL AYANT UNE TEMPERATURE NOMINALE D'AU MOINS 302F (150 C).
SI SE DEBE CAMBIAR CUALQUIER CABLE ORIGINAL PROPORCIONADO CON EL APARATO, SE DEBE CAMBIAR POR UN CABLE CON UNA CLASIFICATIÒN DE TERMPERATURA DE AL MENOS 302F (150 C).
ELECTRICAL LADDER DIAGRAM / DIAGRAMME EN ESCALIER / DIAGRAMA ELÈCTRICO DE ESCALERA
TX
115V
M
GV
DSI
ELECTRICAL CONNECTION DIAGRAM / CONNEXIONS ELECTRIQUES / DIAGRAMA DE CONEXIONES ELÈCTRICAS
SS
X
R
FS
W
PS1
PS2
MV
LED
IND
L1
Y
Y
G
G
G
Y
Y
0
2 4
L1
VENT/
VENTILACIÒN
HEAT/
CHALEUR/
INICIO
OFF/
FERME/
APAGADO
IGC
C/COM
APS
W
28
BK
DSI
Electrical Connection and Ladder Diagram
Heater Component Function
Air Proving Switch
Safety device used to insure that the proper air flow is being
achieved before the gas valve is opened.
Belt
Friction drive component used for transmission of power
from motor to fan shaft. Used in conjunction with motor and
fan sheaves.
Belt Tensioner
A spring loaded device which applies proper tightness to the
drive belt, therebye eliminating excess belt wear created by
over or under tension.
Burner
Cast iron component used to channel gas and provide an
area at which the fuel may ignite.
Burner Orifice
Brass metering device used to feed gas to burner at a
specific rate.
Direct Spark Ignition Control Module
Electronic printed circuit board which sends and receives
voltages to various controls in an automatic ignition system.
An important safety feature of the control board is that it will
shut down the entire heater, thereby stopping the flow of
fuel gas if burner flame goes out.
Fan Housing
Chamber used for delivering air for efficient air movement.
Fan Wheel
Component used in conjunction with the motor and fan
housing to pull the hot air from heater and blow it into room
for heating (also known as a squirrel cage).
Gas Control Valve
Electrical device consisting of a low pressure regulator and
electrical solenoids used for the control of gas flow to the
burner assembly. A feature of the control valve is a built-in
gas shut off which may be used to isolate the heater from
its gas supply when servicing.
Gas Hose
Flexible connector used to convey gas from supply line in
building to heater.
Gas Selector Valve
Allows easy gas conversion depending on gas being
supplied at job site. Eliminates the need for changeout of
the burner orifice .
Heat Chamber
Metal “fire box” within the appliance that provides an area
where burner flame mixes with combustion air, thereby
providing heat.
High Limit Switch
Safety device wired into the control system which is used to
break an electrical circuit to the gas control valve in event of
overheat situation.
Igniter
Ignition device used on automatic direct spark ignition
control systems. Ignites gas by spark.
Motor
Electric device used to force preheated air through the
heater and to circulate heat within a certain area. Converts
electrical energy into mechanical energy.
Motor Relay
Electrical component wired between ignition control and
motor. Used to feed voltage to motor upon receipt of
voltage from ignition control.
Pulleys
Grooved friction drive components responsible for
transmission of power from motor to fan shaft. Used in
conjunction with V-Belt.
Regulator
Mechanical device used in L.P. and natural gas distribution
systems to reduce a higher inlet pressure to a preset lower
pressure. The regulator is responsible to supply a steady
outlet pressure to the heater(s) despite changes in inlet
pressure, heater demand and weather conditions.
Selector Switch
Electrical device which is used to allow the end user to use
the heater in either a heating or ventilation application.
Thermostat
Electrical device used as an automatic “on/off” switch
which will respond to changes in temperature in a certain
area. Can be wired so contacts in the thermostat open or
close on temperature increase or decrease.
Transformer
Electrical control used to accept line power supply primary
voltage and reduce it to lower secondary voltage.
29
Parts Identification
PARTS SCHEMATIC
24
22
34
35
32
62C
33
23
67
62A
62
30
27
64
26
25
62B
29
37
31
36
28
38
49
78
53
63
43A
40
44
41
48
50
45
43
47
46
39
51
42
46
54
52
18
17
21
15
76
78
66
77
16
56
57
59
12
47
68
10
11
20
60
8
9
68A
6
2
6A
3
47
1
70
1A
65
1B
30
66
75
61
14
15A
15B
19
55
5A
14B
14A
5
5B
58
PARTS LIST
Item
1
1A
1B
2
3
5
5A
5b
6
6A
8
9
10
11
12
13
14A
14B
15
15A
15B
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
Description
Regulator
Pigtail Connector
Propane Gas
Bushing, 3/4 x 1/4
Propane Gas
Hose, 3/4 ID x 15 Ft.
Union
Nipple, 1/2 x 4 In.
Bushing
Street Ell
Bracket, Gas Control
Screws
Valve, Gas Control
Elbow, 1/2 NPT
Nipple
Gas Selector Valve
Manifold w/ Burner Orifice
Burner
Bolt, Burner
Washer
Igniter
Bracket
Screws
Lead, Ignition
Screw, Burner Mounting
Spacer, Burner
Panel, Burner Access
Chamber, Heat
Switch, High Limit, Burner End, 325ºF
Case Assembly
Panel, Case Access, Burner
Panel, Case Access, Motor
Panel, Control Box Cover
Latch
Transformer
Relay
Control Ignition
Switch, Selector w/ L.E.D.
Terminal Strip
Hose Hanger
Cage Nut
Washer, 1/4
Bolt, 1/4 - 20 x 3/4
Bracket, Regulator Storage
Screws. Regulator Storage Bracket
and Thermostat Storage Bracket
Guard, Belt
Belt
Belt Tensioner
Pulley, Fan
Drive Platform
Bolt, 3/8 - 16 x 1
Bearing, Pillow Block
Bolt, 3/8 - 16 x 1 1/4
Nut, 3/8 - 16
Part Number
25141
25774
25775
23078
25272
03128
08955
25273
21768
09425
24025
01359
02706
25826
25828
571172
02692
01589
571662
22895
07288
24810
02688
02687
24012
571847
81108
573472
573473
573471
573474
570228
09615
570221
25590
22017
22905
08936
07708
03054
11254
22917
07288
24021
24031
25135
23037
25277
23128
25132
03147
05100
31
PARTS LIST (cont.)
Item
47
48
49
50
50A
51
52
53
54
55
56
57
58
59
60
61
62
62A
62B
62C
63
64
65
66
67
68
Description
Washer, 3/8
Shaft, 3/4 Dia. with 3/16 keyway
Panel, Fan Access
Fan
Key, 3/16 in., Fan & Motor Sheaves, & Fan Shaft (Not Illustrated)
Switch, Air Proving
Housing, Fan
Switch, High Limit, Fan End, 190ºF
Motor
Pulley, Motor
Axle, Wheel
Spacer
Hub Cap
Wheel
Cap, Retaining
Base
Thermostat Kit w/ 20 Ft. Cord
Thermostat
Cord, Thermostat
Connector, Liquid Tight
Cord, Power, 10 Ft.
Bracket, Thermostat Storage
Wheel, Caster
Bolt, 5/16 - 18
Handle, Case
Bracket, Axle Mount
68A
76
77
78
Bracket, Axle
Nut, 5/16 - 18
Motor Mount
Wire Harness, LED
32
Part Number
01589
25133-A
22887
22868
22955
09925
22882
571400
571327
23038
22951
07905
07187
22914
01095
24013
24041
09381
20164
08948
22907
23186
23130
03141
08534
25274
23113
01680
25276
24685
Warranty Policy
EQUIPMENT
L.B. White Co., Inc. warrants that the component parts of its
heater are free from defects in material and workmanship,
when properly installed, operated, and maintained in
accordance with the Installation and Maintenance
Instructions, safety guides and labels contained with each
unit. If, within 24 months from the date of purchase by the
end user, any component is found to be defective, L.B.
White Co., Inc. will at its option, repair
or replace the defective part or heater, with a new part or
heater, F.O.B., Onalaska, Wisconsin.
Registering your product online with L.B.White will
automatically qualify a unit and its component parts for
warranty consideration. If a product has not been
registered with L.B.White, a copy of the bill of sale will be
required to establish warranty qualification. If neither is
available, the warranty period will be 24 months from date
of shipment from L B. White.
PARTS
L.B. White Co., Inc. warrants that replacement parts
purchased from the company and used on the appropriate
L. B. White equipment are free from defects both in material
and workmanship for 24 months from the date of purchase
by the end user. Warranty is automatic if a component is
found defective within 24 months of the date code marked
on the part. If the defect occurs more than 24 months later
than the date code but within 24 months from the date of
purchase by the end user, a copy of a bill of sale will be
required to establish warranty qualification.
The warranty set forth above is the exclusive warranty
provided by L.B. White, and all other warranties, including
any implied warranties or merchantability or fitness for a
particular purpose, are expressly disclaimed. In the event
any implied warranty is not hereby effectively disclaimed
due to operation of law, such implied warranty is limited in
duration to the duration of the applicable warranty stated
above. The remedies set forth above are the sole and
exclusive remedies available hereunder. L.B. White will not
be liable for any incidental or consequential damages
directly or indirectly related to the sale, handling or use of
the equipment, and in any event L.B. White's liability in
connection with the equipment, including for claims based
on negligence or strict liability, is limited to the purchase
price.
Some states do not allow limitations on how long an implied
warranty lasts, so the above limitation may not apply to you.
Some states do not allow the exclusion or limitation of
incidental or consequential damages, so the above
limitation or exclusion may not apply to you. This warranty
gives you specific legal rights, and you may also have other
rights which vary from state to state.
To register your product and ensure full warranty, go to
http://www.lbwhite.com/customer_care_center/product-registration/. Please have the serial number(s)
and model(s) handy for the products you are registering.
Replacement Parts and Service
Contact your local L.B. White dealer for replacement parts
and service. You may also call the L.B. White Co., Inc. at 1-800345-7200, for assistance, or email us at
[email protected].
Be sure that you have your heater model number and
configuration number when calling.
33