L.B. White Tradesman 170, Tradesman 170 Ultra Owner's Manual And Instructions
MODELS OUTPUT (kW) FUEL
CP170 49.8
45.4
Congratulations!
You have purchased the finest portable forced air construction heater available.
Your new L.B. White heater incorporates the benefits from the most experienced
manufacturer of heating products using state-of-the-art technology.
We, at L.B. White, thank you for your confidence in our products and
welcome any suggestions or comments you may have...call us, toll-free,
at (800) 345-7200.
Owner's Manual and Instructions
Tradesman 170 and Trademsan 170 Ultra Construction Heaters
View this manual online at www.lbwhite.com
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
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.
Certification by:
150-29450
Propane Vapor
Withdrawal
Natural Gas
SCAN THIS QR CODE
with your smartphone or
visit http://goo.gl/nvneR
to view maintenance
videos for L.B.White heaters.*
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QR Reader for iPhone.
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.
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.
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. For assistance, contact
L.B. White at 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.
2
SECTION PAGE
General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Heater Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Installation and Assembly Instructions
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Propane Gas Supply Sizing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Handle Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Hose and Regulator Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Connecting Regulator to Propane Gas Supply Cylinder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Height Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Start-Up Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Shut-Down Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Variable Rate Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Cleaning Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Maintenance Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Service Instructions
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Motor, Fan, and Air Proving Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Backflash Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Variable Rate Valve and Gas Control Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Igniter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Burner Orifice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Ignition Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Gas Pressure Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Troubleshooting Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Electrical Connection and Ladder Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Heater Component Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Parts Identification
Parts Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Warranty Policy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Replacement Parts and Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28m
Table of Contents
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.
3
Maximum / Minimum Input (kW) 49.8 /36.6 45.4/36.6
2.74 1.37
2.76 3.36
2.76 1.74
3.56 kg 4.38 m3
2.63 kg 3.53 m3
3.7
2.14
TOP 1.83
SIDES .92
BACK .92
BLOWER
OUTLET
(meters) GAS SUPPLY 3.05 N/A
50 Watts, 3,200 RPM
Sleeve Bearing
CP170
Propane Natural
Gas Gas
SPECIFICATIONS
Model
Electrical Supply
(Volts/Hz/Phase)
Amp Draw
Dimensions (cm)
L x W x H
Minimum Safe
Distances From
Nearest
Combustible
Materials
STARTING
CONTINUOUS
OPERATION
Fuel Consumption / Hour
I
nlet Gas Supply
Pressure Acceptable at
the Gas Connection of the
Heater (kPa)
MAX.
MIN.
3.05
115/60/1
Heater Specifications
Fuel Type
Burner Manifold Pressure (kPa)
4
Motor Characteristics
61 x 22.9 x 40.6
MAX.
MIN.
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.
■ 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.
5
Safety Precautions
ODOR FADING -- NO ODOR DETECTED
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.
■
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.
■ 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.
■ 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!
WARNING
■ Do not use this heater for heating human living
quarters.
■ Do not use in unventilated areas.
■ The flow of combustion and ventilation air must not be
obstructed.
■ Proper ventilation air must be provided to support the
combustion air requirements of the heater being used.
■ Lack of proper ventilation air will lead to improper
combustion.
■ Improper combustion can lead to carbon monoxide
poisoning leading to serious injury or death. Symptoms
of carbon monoxide poisoning can include headaches,
dizziness and difficulty in breathing.
■ Proper ventilation air for combustion must be provided
in accordance with OSHA 29 CFR 1926.154,
Temporary Heating Devices, ANSI A10.10, Safety
Requirements for Temporary and Portable Space
Heating Devices, or the Natural Gas and Propane
Installation Code, CAN/CSA B149.1 as appropriate.
Asphyxiation Hazard
FUEL GAS ODOR
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 service and installation of this
equipment are as follows:
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.
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. Also refer to
CSA B149.1 Natural Gas and Propane Installation
Code, CSA C22.1 Part 1, Standard Canadian Electrical
Code, and CSA C22.2 No.3, Electrical Features of Fuel
Burning Equipment
3. Adequate ventilation air for combustion must be
provided in accordance with OSHA 29 CFR 1926.154,
Temporary Heating Devices, and ANSI A10.10, Safety
Requirements for Temporary and Portable Space
Heating Devices,or CAN B149, the Natural Gas and
Propane Installation Code, as appropriate
4. We cannot anticipate every use which maybe made of
our heaters. Check with the local fire safety authority if
you have questions about applications.
5. Forced air heaters shall not be directed toward any
propane gas container within (6.10 meters. Do not
wash the heater.
6. Use only compressed air, a soft brush or dry cloth to
clean the interior of the heater and it’s components.
7. Use only the regulator supplied with the heater. The
heater must be regulated at all times for proper
operation.
8. For safety, this heater is equipped with auto reset limit
switches, and an air proving switch. Never operate the
heater with any safety device that has been bypassed.
Do not operate this heater unless these features are
fully functioning.
9. 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.
10. 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.
11. 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.
12. This heater should be inspected for proper operation
by a qualified service person before each use and at
least annually.
13. 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.
14. 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 threeprong receptacle. Failure to use a properly grounded
receptacle can result in electrical shock, personal
injury, or death.
15. If gas flow is interrupted and flame goes out, do not
relight the heater until you are that all gas that may
have accummulated has cleared away. In any event,
do not relight the heater for at least 5 minutes.
16. Minimum propane gas supply cylinder size to be used
shall be 45 kg. when using a cylinder supply system.
The system must be arranged to provide vapor
withdrawal from the operating cylinder.
17. 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 CSA B149.1 Natural Gas and Propane
Installation Code.
18. Propane gas supply containers have left handed
threads. Always use the appropriate wrench to make a
connection to tighten or loosen the P.O.L. fitting at the
cylinders’ gas supply valve.
6
WARNING
Burn Hazard
■ High surface and discharge temperatures.
■ Do not touch the heater or come within safe
clearances given on dataplate.
■ Use extreme caution when lighting the heater or
adjusting heat levels.
■ Failure to follow this warning can ignite clothing and
burn users too close to the heater.
■ Burns cause serious injury or death.
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. Ensure the heater is properly positioned before use.
The heater must be installed on a level, flat,and
stable surface when in operation and according to
minimum safe distances from combustible materials.
Safe distances are given on the heater dataplate and
on page 4 of this manual.
3. L.P Gas Installation Requirements
■ Ensure all L.P. gas containers are secured and
protected from people, vehicular traffic and
contact.
■ L.P. gas containers must be located on a flat,level,
and stable surface.
■ L.P. gas cylinders (45 kg. cylinders/tanks) must be
secured from tip-over.
Contact your local authorities, L.P. gas dealers, or fire
marshalls for specifics dealing with installation in
your area.
4. This heater is approved for indoor use only. The
heater shall be installed so it is not directly exposed
to water spray, rain, and /or dripping water.
5. 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.
6. Heaters used in the vicinity of combustible tarpaulins,
canvas, plastics, wind barriers, or similar coverings
shall be located at least 3.05 m. 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.
7. Insure that all accessories that ship with the heater
have been and installed.
8. Check all connections for gas leaks using approved
gas leak detectors. Gas leak testing is performed as
follows:
-- 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.
-- 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.
9. A qualified service agency must check for proper
operating gas pressure upon installation of the
heater.
10. Always use pipe thread compund that is resistant to
propane and natural gas.
11. Light according to instructions on heater or within
owner's manual.
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.
7
Installation and Assembly Instructions
GENERAL
WARNING
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 loss of life.
Assemble handle to four holes at barrel top as shown
in Fig.1. Tighten screws securely.
FIG. 1
HANDLE ASSEMBLY
8
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 during winter in northern
climates. If more or less favorable conditions prevail at a
specific site, adjustments can be made on the basis of
experience.
PROPANE GAS SUPPLY SIZING
Recommended Propane Gas Supply
Average Temp ºC 10 4.4 -1.1 -6.7 -12.2 -17.8 -23
Number of 45 kg. 2 2 3 3 3 3 3
Gas Cylinders to
Use Per Heater
* Cylinders must be manifolded together to allow simultaneous vapor withdrawal from all cylinders.
12 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 range specified on the
dataplate at all times. Contact your gas supplier, or
the L.B. White Co., Inc. if you have any questions.
13. This heater is configured for use for propane gas
vapor withdrawal only. Do not use the heater in an
propane gas liquid withdrawal system or application.
If you are in doubt, contact the L.B. White Co., Inc.
14. The heater must be installed so as not to interfere
with or obstruct normal exits, emergency exits, doors
and walkways.
15. Railing, fencing or suitable substitute materials must
be used to keep the heating equipment from any
people using and visiting the structure.
16. 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.
17. 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.
18. 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.
9
1. Ensure the cylinder valve is completely closed.
2. Remove the protective cap from regulator fitting. Do
not discard cap.
3. Insert POL stem into the valve on the cylinder. Thread
the nut counterclockwise into the tank valve. Ensure
regulator vent is pointed down. Tighten the nut
securely with a wrench. See Fig. 5.
3. Slowly open the cylinder valve by turning
counterclockwise. This will prevent lock-up of the
excess flow valve within POL stem.
4. Check all connections with approved leak detector.
Do not use flame to check for leaks. A fire or
explosion may result.
5. When storing or transporting the heater, ensure the
cap is pushed back onto the POL fitting. This will
protect the fitting from damage and prevent entry of
dirt.
FIG. 5
1. Connect rigid end of hose to regulator and tighten
securely.
FIG. 2
2. Install hose adapter to gas inlet of heater. Tighten
adpater securely. Connect end of hose with nut to
hose adapter. Tighten hose nut securely. See Fig 3.
FIG. 3
HOSE AND REGULATOR ASSEMBLY
CONNECTING PROPANE REGULATOR TO PROPANE GAS CYLINDER
VENT
POL NUT
AND STEM
Propane Gas
Natural Gas
-- Connect the components and regulator at the heater
gas inlet as shown in Fig. 4. Ensure flow arrow on
regulator body is in direction of gas flow. Tighten all
securely.
FIG. 4
GAS SHUT OFF
TO GAS SUPPLY
REGULATOR
BUSHING,
NIPPLE
NIPPLE
STREET ELL
This heater includes a height adjustment feature,
allowing the user to change the elevation of the
heater for greater heat direction. See Fig. 6 for
location of adjustment on front base of heater.
To adjust the heater’s nose height:
-- Loosen knob
-- Lift heater slightly at blower outlet end
-- Pull leg to desired setting
-- Tighten knob.
FIG. 6
HEIGHT ADJUSTMENT
WARNING
Burn Hazard
■ Do not adjust height while heater is operating or hot.
■ Adjust height only after the heater has been
disconnected from its power supply and cool to touch.
■ Failure to follow this warning will result in burns
causing injury.
KNOB
LEG
10
Start-Up Instructions
1. Connect the heater’s electrical cord to an approved
electrical outlet.
2. Open the gas supply valve. For LP heaters, this is
located on the cylinder or tank.
3. Set thermostat on heater to a setting above room
temperature. The heater will start and the burner will
ignite.
■ It is normal for air to be trapped in gas hose on new
installations. You may need to recycle the heater
before air is finally purged from the line and ignition
takes place.
4. Do not exceed input rating provided on dataplate or
manufacturer’s recommended burner manifold
pressure for size orifice used. Ensure that the
primary air supply to heater is open and free of dust,
dirt and debris for complete, proper combustion.
If the heater is to be shut down for cleaning, maintenance,
or repair, follow steps 1-4. Otherwise turn the thermostat to
a lower setting.
1. Close the gas supply valve.
2. Allow the heater to burn off any fuel gas remaining in
the gas supply line.
3. Set the thermostat to its lowest setting.
4. Disconnect the heater from its gas and electrical
supplies.
Shut-Down Instructions
1411
Variable Rate Valve
This heater includes a variable rate valve for
adjusting the heat output from low to high heat, or
anywhere in-between. See Figs. 7.
FIG. 7
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,
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.
Maintenance Instructions
1. Before cleaning, shut off all gas supply valves and
disconnect electrical supply.
2. The heater should have dirt or dust removed
periodically:
NOTE: Before each use clean the heater 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. Also ensure the fan
blade is free of material build-up.
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 injury 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.
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.
1412
Service Instructions
1. Close the fuel supply valve to the heater and
disconnect the electrical supply before servicing
unless necessary for your service procedure.
2. Remove the heater’s base bottom for access to
electrical components and connections.
3 Disconnect the appropriate electrical leads for the
component being replaced.
4. Remove the fan guard and motor/fan assembly for
access to barrel components.
5. The auto reset backflash, and thermostat can be
tested by disconnecting the leads at the component,
and placing a jumper connecting the leads together.:
-- 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..
6. Ultra Heaters: Do not jumper the air proving switch.
If jumpered, the ignition control will not allow heater
operation. Test the air proving switch for continuity.
If defective, replace the switch
7. For reassembly, reverse the respective service
procedure. Ensure gas connections are tightened
securely.
8. After servicing, start the heater to ensure proper
operation and check for gas leaks.
9. Clean the heater’s orifice with compressed air or a
soft, dry rag. Do not use files, drills, broaches, etc. to
clean the orifice. Doing so may enlarge the hole,
causing combustion or ignition problems. Replace
the orifice if it cannot be cleaned properly.
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
explosions, causing property damage, injury, or death.
GENERAL
1. Remove fan guard and screws securing the motor
mount to the heater’s barrel. See Fig 8..
2. Lift motor/fan assembly from heater.
FIG. 8
Motor
-- Remove both screws and strap securing the motor.
-- Position the motor between motor mount stops when
reinstalling.
Air Proving Switch (Ultra Heaters Only)
-- Remove screw securing switch bracket to motor mount.
-- On reassembly, ensure tab on switch bracket is located in
hole.
Fan
-- Loosen set screw at hub.
-- Pull fan from shaft.
-- Ensure fan is flush on shaft end, and set screw is
positioned over flat of motor shaft before tightening
FIG. 9
MOTOR , FAN, AND AIR PROVING SWITCH
1413
SET SCREW
FAN HUB FLUSH WITH SHAFT END
REMOVE
SCREWS
STRAP
AIR PROVING
SWITCH
TAB IN
HOLE
REMOVE
REMOVE
(BOTH SIDES)
1414
1. Loosen the compression nut at the outlet of the
variable rate valve. See Fig. 13.
2. Remove both screws securing the valve bracket to
the heater side panel.
3. Remove the valve assembly from the heater and
replace components as needed.
FIG. 13
VARIABLE RATE VALVE AND GAS CONTROL VALVE
SCREWS
COMPRESSION NUT
VARIABLE RATE VALVE
GAS CONTROL VALVE
There are two auto reset limit switches on this heater.
One is located on the burner plate. The other is located
on the underside of the combustion chamber. Either
will cut off power to the gas control valve if the heater
should overheat.
Switch mounted on burner plate. See Fig. 10.
-- Remove the screws, spacers and nuts holding the
switch to the burner plate.
FIG. 10
Switch mounted on underside of combustion
chamber. (See Fig. 11.)
-- Remove base bottom of heater.
-- Remove screws securing the limit to the
underside of the combustion chamber.
-- The combustion chamber is stamped with the
letters P (Propane) and N (Natural gas) adjacent
to the screw holes to identify limit switch location
for the appropriate gas.
FIG. 11
TESTING
The switches should be tested annually.
1. Remove the appropriate switch. Apply a small,soft
flame to the sensing disk of the switch. See Fig. 12.
Be careful not to melt the switch’s plastic housing
when conducting this test.
2. Within a short time, you should hear the contacts of
the switch opening. Check for continuity across
terminals to ensure the switch has opened.
3. Allow the switch to cool. The switch contacts will close.
Check for electrical continuity across the switch
terminals to ensure contacts have closed.
FIG. 12
AUTO RESET LIMIT SWITCHES
LIMIT
SWITCH
NUTS,SCREWS,
SPACERS
P
N
HEIGHT ADJUSTMENT LEG
2. Loosen the compression nut at the burner orifice.
Remove the bowed retaining clip. See Fig. 17.
FIG. 17
2. Reach down the barrel of the heater and pull the
orifice from the burner plate.
3. Inspect the orifice and clean any plugged holes.
Replace it if necessary. The replacement orifice will
include retaining clips.
FIG. 18
15
BURNER ORIFICE
COMPRESSION NUT
BOWED CLIP
MAINTENANCE
1. Using a small wire brush, reach down the barrel of
the heater and brush the igniter electrode. Remove
any build up.
2. Periodically check the gap. Gap should be 4.8 mm as
shown in Fig. 15.
FIG. 14
FIG. 15
REMOVAL
1. Disconnect the ignitIon cable from the igniter. See
Fig.16.
FIG. 16
2. Remove the igniter mounting screw and nut. See
Figs. 14 and 16.
IGNITER
IGNITION CABLE
IGNITOR
ELECTRODE
4.7 mm
MOUNTING SCREW
MOUNTING
NUT
IGNITION CONTROL
1. Disconnect the LED wire harness from the circuit
board, if applicable.
2. Remove the nuts securing the control to the side of
the heater’s base.. See Fig. 21.
3. When replacing, do not touch or allow contact to the
control’s components, otherwise damage may occur.
FIG. 21
1416
1. Remove knob and thermostat mounting screws. See
Fig. 19.
2. Remove the base bottom from the heater.
3.. Slide the thermostat sensing bulb from the cable tie
at the wiring harness. See Fig. 20.
FIG. 19
FIG. 20
THERMOSTAT
SCREWS
THERMOSTAT
BULB
NUT
LED WIRE
HARNESS
IGNITION
CABLE
17
■ 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 gas control valve will verify
proper inlet and burner manifold pressures.
A. Preparation
1. Obtain a pressure gauge capable of reading up to 35
in. W.C.
2. Disconnect the heater from the electrical supply and
close the fuel supply valve to the heater inlet.
3. Remove the bottom base panel.
4. Brush or blow off any dust and dirt on or in the vicinity
of the gas control valve.
B. Gauge Installation
1. Remove the pressure tap plug on gas control valve. See
Fig. 22.
FIG. 22
2. Install the gauge at the gas control. See Fig. 23
FIG. 23
3. Position the heater upright. Lower the height
adjustment leg to elevate the heater and prevent
pinching of gauge hose See Fig. 24.
FIG. 24
C. Reading Pressures
1. With the heater operating, the pressure gauge must
read the pressures specified on the dataplate
2. Does the reading at the gas control valve agree with
that specified on the dataplate? If so, then no further
checking or adjustment is required. Proceed to section
D.
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.
D. Completion
1. Once the proper pressure has been confirmed and/or
properly set, close the fuel supply to the heater and
allow the heater to burn off any gas remaining in the
gas supply line.
2. Disconnect the heater from its electrical supply.
3. Remove the gauge.
4. Install pressure tap plug and tighten securely
5. Open the fuel supply and start the heater. Check for
gas leaks at the plug Set heater’s thermostat to
desired temperature.
GAS PRESSURE CHECKS
PLUG
GAUGE CONNECTED
TO GAS CONTROL
READ THIS ENTIRE SECTION BEFORE BEGINNING
TO TROUBLESHOOT PROBLEMS.
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.
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 is important as it relates to problem solving.
Heater models labeled Tradesman Ultra have a red light
located at the fan end of the heater. The light will flash a
specific pattern depending upon the problem which is
diagnosed. 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. Use the light to help
diagnose the problem.
Heater models labeled Tradesman do not have the
diagnostic red light.
Troubleshooting Flow Charts are provided to eliminate
problems. To use the flow charts effectively, you must first
identify the problem.
Before beginning::
■ Inspect heater for apparent damage.
■ Check all wiring for loose connections and worn
insulation.
Tradesman Ultra Diagnostic Heaters Page
Red light is steady on. No flash pattern. . . . . . . . . . . . . . 19
Red light light is not on. . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Red light is flashing:
A. One Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
B. Two Times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
C. Three Times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
D. Four Times. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
D. Five Times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Tradesman Non - Diagnostic Heters Page
Fan Does Not Run, Heater Does Not Light. . . . . . . . . . . . 22
Heater Lights, But Does Not Stay Lit . . . . . . . . . . . . . . . . 22
Fan Runs, Heater Does Not Light . . . . . . . . . . . . . . . . . . . 23
Components should be replaced only after each step has
been completed and replacement is suggested in the flow
chart. Refer to the Servicing sections as necessary to
obtain information on disassembly and replacement
procedures of the component once the problem is identified
by the flow chart.
DIRECT IGNITION OPERATION SEQUENCE:
-- Voltage is sent to the thermostat.
-- Thermostat calls for heat.
-- Thermostat sends voltage to ignition control.
-- Red light is illuminated.(Ultra heaters Only).
-- Ignition control module performs self safety check.
-- Internal components are tested.
-- Air proving circuit is checked.(Ultra heaters only)
-- Ignition control module begins ignition trial sequence.
-- Ignition control module sends 115 volts to air proving .
switch.(Ultra heaters only)
-- Ignition control sends 115 volts to motor, motor starts.
-- Air proving switch closes and 115 volts are returned to the
ignition control module.(Ultra heaters only)
-- Ignition control module sends high voltage to the igniter
electrode.
-- Igniter sparks.
-- Ignition control module sends 115 volts to the gas control
valve through the auto reset 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.
-- Room warms to desired temperature.
-- Thermostat is satisfied.
-- Heater shuts down.
-- 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.
18
Troubleshooting Information
WARNING
■ This heater can start at any time.
■ Troubleshooting this system may require operating the
unit with voltage present and gas on. Be careful when
working on the heater.
■ Failure to follow this warning may result in property
damage, personal injury or death.
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