Owner's Manual and Instructions

MODELS

346, 348*

OUTPUT (Btuh)

60,000

FUEL

All Models are available in either Propane

Vapor Withdrawal or Natural Gas

Configurations.

Certification by:

* The --3 and --4 versions of these heaters are not listed and approved heaters.

Congratulations!

You have purchased the finest 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 1-800-345-7200.

ATTENTION ALL USERS

This heater* has been tested and evaluated by C.S.A. International in accordance with Standard ANSI Z83.7

z

CSA 2.14 and is listed and approved as a direct gas-fired circulating construction heater with intended use for primarily the temporary heating of buildings under construction, alteration, or repair. As an alternative use, this heater has also been tested and evaluated by the L.B. White Co., Inc. for the heating of agricultural animal confinement buildings and has been used in such applications for many years. If you are considering using this product for any applications other than those previously stated, then please contact your fuel gas supplier or the L.B. White Co., Inc.

150-22270-B

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 rating 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, building damage or loss of livestock.

■

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 to humans and livestock.

■

■

■ combustibles.

WARNING

Fire and Explosion Hazard

Keep solid combustibles a safe distance away from the heater.

Solid combustibles include wood or paper products, feathers, straw, and dust.

■

Do not use the heater in spaces which contain or may contain volatile or airborne

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.

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

Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.

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.

2

Table of Contents

SECTION PAGE

General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Heater Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Installation Instructions

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Air Diverter Installation Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

Hanging Installation Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Sediment Trap Assembly Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Thermostat Installation Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Start-Up Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Shut-Down Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Cleaning Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Maintenance Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Electrical Connection and Ladder Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

Heater Component Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Parts Identification

Parts Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

Warranty Policy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

Replacement Parts and Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

General Information

This Owner’s Manual includes all options and accessories commonly used on this heater. However, depending on the configuration purchased, some options and accessories may not be included.

When calling for technical service assistance, or for other specific information, always have model 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. A detailed

Installation and Service Guide is available, at no charge, to qualified personnel by contacting the local L.B. White distributor, dealer or the L.B. White Company.

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

Heater Specifications

SPECIFICATIONS

Maximum Input (BTUH)

Ventilation Air Required to Support Combustion

Inlet Gas Supply

Pressure Acceptable at the Inlet of the

Heater for Purpose of Input Adjustment

Burner Manifold Pressure

Fuel Consumption Per Hour

MAX.

MIN.

MAX.

Motor Characteristics

Electrical Supply

(Volts/Hz/Phase)

Amp Draw

(Starting Amps

Includes Igniter)

Dimensions (Inches)

L x W x H

Minimum Safe

Distances From

Nearest

Combustible

Materials

Net Weight (lbs.)

Shipping Weight (lbs.)

Minimum Ambient Temperature

In Which Heater May be Operated

STARTING

CONTINUOUS

OPERATION

TOP

SIDES

BACK

BLOWER

OUTLET

GAS

SUPPLY

4

M de

346

Propane

Gas

60,000

250 CFM

348

Natural

Gas

13.5 in. W.C.

10.5 in.

W.C.

10 in.

W.C.

2.78

lbs.

Sleeve Bearing

1/12 H.P.

1700 RPM

7 in.

W.C.

4 in.

W.C.

60 cu. ft.

115/60/1

3.0

1.0

21

1/4 x

11

1/4 x

24

6 in.

6 in.

6 in.

4 ft.

Propane Gas Supply — 6 ft. (1.83 m)

Natural Gas Supply — N/A

55

61

-20º F.

Safety Precautions

WARNING

Asphyxiation H

■

Do not use this heater for heating human living quarters.

Hazard

Company to determine combustion air ventilation requirements of the heater.

■

Do not use in unventilated areas.

■

The flow of combustion and ventilation air must not be obstructed.

■

Lack of proper ventilation air will lead to improper combustion.

■

Proper ventilation air must be provided to support the combustion air requirements of the heater being used.

■

Improper combustion can lead to carbon monoxide poisoning in humans leading to serious injury or death.

Symptoms of carbon monoxide poisoning can include headaches, dizziness and difficulty in breathing.

■

Refer to the specification section of the heater’s Owner’s

Manual, heater dataplate, or contact the L.B. White

■

Symptoms of improper combustion affecting livestock can be disease, lower feed conversion, or death.

FUEL GAS ODOR

man-m

If aa ggas lleak ooccurs, yyou sshould bbe aable tto ssmell tthe ffuel ggas.

SIGNAL TTO G

■

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.

■

Natural gas is lighter than air and can collect around rafters or ceilings.

■

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

■

The oodorant iin ppropane ggas aand nnatural ggas iis ccolorless and tthe iintensity oof iits oodor ccan ffade uunder ssome circumstances.

■

Some ppeople ccannot ssmell w man-m

Some ppeople ccannot made cchemical aadded tto must ddetermine iif yyou ccan smell tthe oodorant iin tthese ffuel ggases.

■

Learn to recognize the odor of propane gas and natural gas. Local propane gas dealers and your local natural gas supplier (utility) will be more than happy to give you a “scratch and sniff” pamphlet. Use it to become familiar with the fuel gas odor.

■

Smoking can decrease your ability to smell. Being around an odor for a period of time can affect your sensitivity to that particular odor. Odors present in animal confinement buildings can mask fuel gas odor.

■

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 bbe ssensitive tto tthe sslightest ggas oodor. 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 and natural gas have 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 and natural gas fueled heaters, then do not attempt to light heater, perform service or repairs, or make any adjustments to the heater on propane gas or natural 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

6

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 propane 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:

-- ANSI/NFPA 58, latest edition, Standard for

Storage and Handling of Liquefied Petroleum

Gas and/or

-- ANSI Z223.1/NFPA 54, National Fuel Gas Code

-- ANSI/NFPA 70, National Electrical Code.

3. We cannot anticipate every use which may be made of our heaters. Check with your local fire safety authority if you have questions about applications.

4. Do not move, handle, or service heater while in operation or connected to a power or fuel supply.

5. For safety, never operate this heater with any of its safety devices that have been bypassed. Do not operate this heater unless all of these features are fully functioning.

6. Do not operate the heater with panels removed.

7. Do not locate fuel gas containers or fuel supply hoses anywhere near the blower outlet of the heater.

8. Forced-air heaters shall not be directed toward any propane gas container within 20 feet (6.10 m).

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 or animal loss.

10. The hose assembly shall be visually inspected on an annual basis. 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 animals, 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, periodically, and when relocating the heater, its gas supply, or gas supply line.

12. This heater should be inspected for proper operation by a qualified service person before building repopulation, each use, and at least annually.

13. Always turn off the gas supply to the heater when the heater is not in use.

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 three-prong 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 sure that all gas that may have accumulated has cleared away. In any event, do not relight the heater for at least 5 minutes.

16. In a hanging type installation, rigid pipe or copper tubing coupled directly to the heater may cause gas leaks during movement, and therefore must not be used. Use only gas hose assemblies that are rated and approved for propane gas and natural gas in a hanging type of installation.

17. Installations not using the gas hose supplied with this appliance must connect dimensionally using

American National Standard Wrought Steel and

Wrought Iron Pipe B36/10-1970. (Aluminum piping or tubing shall not be used.) Copper tubing when used for conveying natural gas, shall be internally tinned or equivalently treated to resist sulphur.

18. If your unit utilizes propane vapor, the minimum propane gas supply cylinder size should be a 100 pound propane gas supply cylinder. When using a cylinder supply system, it should be arranged to provide vapor withdrawal from operating cylinder.

19. When the heater is to be stored indoors, the connection between the propane gas supply cylinder(s) and the heater must be disconnected and

the cylinder(s) removed from the heater and stored in accordance with the Standard for the Storage and

Handling of Liquefied Petroleum Gases, ANSI/NFPA

58 and CSA B149.1.

20. Propane gas supply containers have left-handed threads. Always use a wrench to make the connection to remove the P.O.L. fitting. Do not use pliers.

WARNING

Fire oor eexplosion hhazard.

Can ccause pproperty ddamage, ssevere iinjury oor ddeath.

1. Disconnect power supply before wiring to prevent electrical shock or equipment damage.

2. To avoid dangerous accumulation of fuel gas, turn off gas supply at the appliance service valve before starting installation, and perform gas leak test after completion of installation.

3. Do not force the gas control knob. Use only your hand to turn the gas control knob. Never use any tools. If the knob will not operate by hand, the control 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 properly positioned before use. Observe and obey all minimum safe distances of the heater to the nearest combustible materials.

Minimum safe distances are given on the heater nameplate and on page 4 of this manual.

3. The heater is approved for indoor use only.

4. The heater is not for use with ductwork.

5. The heater shall be installed so that it is not directly exposed to water spray, rain, and dripping water.

6. Certified construction heaters include a gas hose and single-stage regulator. The single-stage regulator is to be used only in applications where temporary use of the heater is required. Contact the L.B. White Co. or your fuel gas supplier if you have questions.

7. For permanent heater installations, two-stage gas regulation is required. The heater’s second-stage regulator (with pressure relief valve) should be installed outside of building. Any regulators inside the buildings must be properly vented to the outside.

Local, state and national codes always apply to regulator installation. Natural gas regulators with vent limiting device may be mounted indoors without venting to outdoors.

8. Insure that all accessories that ship within the heater have been removed from inside of heater and installed. This pertains to air diverters, hose, regulators, etc.

9. Make certain that a sediment trap is installed at the gas valve inlet to prevent foreign materials (pipe

Installation Instructions

GENERAL

compound, pipe chips and scale) from entering the gas valve. Debris blown into the gas valve may cause that valve to malfunction resulting in a serious gas leak that could result in a possible fire or explosion causing loss of products, building or even life. A properly installed sediment trap will keep foreign materials from entering the gas valve and protect the safe functioning of that important safety component.

10. Any heater connected to a piping system must have an accessible, approved manual shut off valve installed within six feet (6 ft.) of the appliance it serves.

11. Check all connections for gas leaks using approved gas leak detectors. Gas leak testing is performed as follows:

WARNING

■

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.

-- 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.

-- Furthermore 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.

7

-- 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.

11. A qualified service agency must check for proper operating gas pressure upon installation of the heater.

12. Light according to instructions on heater or within owner's manual.

13. It is extremely important to use the proper size and type of gas supply line to assure proper functioning of the heater. Contact your fuel gas supplier for proper line sizing and installation.

14. 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.

15. This heater can be configured for use with either L.P.

gas vapor withdrawal or natural gas. Consult the dataplate, located on the case panel at the burner end of the heater, for the gas configuration of the specific heater. Do not use the heater in a propane gas liquid withdrawal system or application. If you are in doubt, contact the L.B. White Co., Inc.

16. Eventually, like all electrical/mechanical devices, the thermostat can fail. Thermostat failure may result in either an underheating or overheating condition which may damage critical products and/or cause animal injury or death. Critical products and/or animals should be protected by a separate back-up control system that limits high and low temperatures and also activates appropriate alarms.

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.

1. Optional air diverters can be installed in the heater outlet to provide direction to the heated air as it exits the heater. Installation options include installing the diverters in such a way as to broadly distribute the air in two 45 degree paths or to focus the air flow in one

45 degree direction. See Fig. 1.

2. The air diverter’s tabs on each half will pop into the blower outlet between the inside of the case assembly and the blower housing outlet. If the notched tabs do not pop into the blower outlet, loosen (do not remove) the blower outlet screws. Doing this provides a gap into which you can insert the tabs. Retighten the screws after installation.

Optional Accessory.

Appearance of the outlet on heater may vary from model to model.

FIG. 1

(Typical installation allowing two directions of air movement.)

NOTCHES IN MOUNTING TABS

TABS

OUTLET

SCREWS

FORMED

OUTLET GUARD

DIVERTER

HALVES

Alternate Air Diverter Installations

8

HANGING INSTRUCTIONS

1. Assemble according to the illustration and tighten all eyebolts securely. (See Fig. 2):

FIG. 2

FIG. 3

NOTE: REGULATORS SHOULD ALWAYS BE MOUNTED OUTDOORS. IF

CIRCUMSTANCES FORCE INSTALLING THE REGULATOR INDOORS,

THE REGULATOR'S VENT MUST BE VENTED OUTDOORS USING VENT

LINE NO SMALLER THAN VENT OPENING.

EYEBOLT

NUT

CHAIN

VENT OF REGULATOR MUST

POINT DOWN AND REGULATOR

MUST BE VENTED OUTDOORS

MANUAL SHUT-OFF VALVE

CAN BE INSTALLED BEFORE

THE REGULATOR, UNDER

THE EAVE OF THE BUILDING,

OR AFTER THE REGULATOR

INSIDE THE BUILDING.

FLAT WASHER

CHAIN OR CABLE

CAGE NUT

CASE TOP

2. Be sure heater is securely fastened and is hanging level. (Check crosswise and lengthwise.)

3. See Fig. 3 for typical indoor installation. In any animal confinement building, consideration must be given to making sure the heater is located away from the livestock so that livestock cannot knock the heater, tear it loose from its mounting, or damage the heater or its gas supply line in any way. Make sure you observe and obey minimum clearance distances to combustible materials as stated in the specification section of this owner’s manual and on the heater itself.

OPTIONAL INDOOR

REGULATOR

MOUNTING LOCATION

GAS HOSE

THERMOSTAT

CORD

HEATER

THERMOSTAT

30.5CM

30.5CM

BLACK PIPE

THROUGH WALL

VENT LINE

WALL OUTLET

POWER CORD

SEDIMENT

TRAP

SEDIMENT TRAP ASSEMBLY

Optional Accessory

Assemble the tee, nipples and cap together and tighten securely. See Fig. 4. The sediment trap assembly must always be mounted in a vertical position. Make sure pipe thread compound that is resistant to both propane gas and natural gas is used in making all connections. Check aall connections ffor ggas lleaks uusing aapproved ggas lleak detectors.

FIG. 4

TO GAS CONTROL

VALVE INLET

NIPPLE

HOSE ADAPTER

TEE

NIPPLE

CAP

9

THERMOSTAT INSTALLATION

WARNING

■

Disconnect the electrical supply before connecting the thermostat to the heater.

■

Failure to follow this warning can result in electrical shock, leading to personal injury or death.

a. Connect the power cord of the heater to the female side of the plug on the end of the thermostat cord.

b. Plug the male side of the series tap plug on the thermostat cord into a three-wire (grounded) electrical outlet within the building.

Connect tthe D

Heater: a. The installation and wiring of a thermostat must be done by an electrician or someone properly qualified.

b. The thermostat may use 18 gauge, 3 wire cord to handle the voltage being supplied to the thermostat.

c. The heater must be tested for proper operation after the thermostat has been connected.

Start-Up Instructions

Follow steps 1 - 8 on initial start-up after heater installation by a qualified gas heater service person. For normal startup, simply turn thermostat above room temperature. The heater will start.

1. Open all manual fuel supply valves and check for gas leaks using approved certified leak detectors.

2. Remove the metal cover from the gas control enclosure.

3. The gas control valve incorporates a manual gas shut off feature. Position the indicator on the shut off knob to “pilot”.

4. Fully depress the red pilot button located on the control valve while applying flame to the pilot light.

Keep the button depressed for about 30 seconds to allow the thermocouple to warm up so the pilot stays lit after you release the pilot button. Once the pilot stays lit, position the knob to “on”.

ATTENTION

On new installations it may take a short period of time for the gas to purge out any air in the pilot line before the pilot stays lit.

FIG. 6

5. Reinstall the metal cover back over the valve.

6. Connect the heater’s electrical cord to an approved electrical outlet.

7.

Set thermostat to a point above room temperature.

The heater will light. Reset thermostat to desired room temperature.

8. Do not exceed input rating stamped on nameplate of appliance, or manufacturer’s recommended burner orifice pressure for size orifice(s) used.

GAS SHUT OFF KNOB

ON

OFF

PILOT BUTTON

PILOT

Shut-Down Instructions

If the heater is to be shut down for cleaning, maintenance or repair, follow steps 1 - 5. Otherwise, simply turn thermostat to “off” or “no heat” for standard shut down.

1. Close all manual fuel supply valves.

2. With the heater lit, allow heater to burn off excess fuel in gas supply hose.

10

3. Turn the indicator on the gas control to “off”.

4. Turn thermostat to “off” or “no heat” position.

5. Disconnect the heater from the electrical supply.

Cleaning Instructions

WARNING

■

This heater contains electrical and mechanical components in the gas management, safety and airflow systems.

■

Such components may become inoperative or fail due to dust, dirt, wear, aging, or the corrosive atmosphere of an animal confinement building.

■

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 dirt or dust removed periodically: a. After each use, give the heater a general cleaning using compressed air or a soft brush on its interior and exterior. At this time, dust off the motor case to prevent the motor from over-heating and shutting the heater down.

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 wheel, giving attention to the individual fan blades.

Additionally, make sure the burner air inlet venturi ports and the “throat” of the casting are free of dust accumulation and the area between the heat chamber top and inside case is also free of dust. c. Observe and obey the Warning within these

Cleaning Instructions. This same Warning is also supplied on the heater.

WARNING

This heater must not be washed. Use of a pressure washer, water or liquid cleaning solution on this heater can cause severe personal injury or property damage due to water and/or cleaning solution:

A. In electrical components, connections and wires causing electrical shock or component failure.

B. On gas control components causing corrosion which can result in gas leaks and fire or explosion from the leak.

The heater must be cleaning in accordance with the manufacturer’s instructions without being subjected to liquid spray or wetting.

1. Have your gas supplier check all gas piping annually for leaks or restrictions in gas lines. Also, at this time have your gas supplier clean out the sediment trap of any debris that may have accumulated.

2. The aappliance aarea sshall bbe kkept cclear aand ffree ffrom combustible m vapors aand lliquids.

Maintenance Instructions

3. 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 appliance to make sure that the regulator is reliable.

4. 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 appliance.

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Electrical Connection and Ladder Diagram

CAUTION

Always refer to the heater’s electrical connection diagram when servicing to avoid wiring errors and heater malfunction.

Check for proper operation after servicing.

WARNING: THIS HEATER MAY START AT ANY TIME

AIR PROVING SWITCH

(NOT SUPPLIED ON SOME MODELS)

BLACK

OR RED

BLACK

BLACK OR RED

BLACK

GAS

CONTROL

VALVE

WHITE

BLACK

THERMOSTAT

(OPTIONAL)

HIGH LIMIT

SWITCH

MOTOR

BLACK

WHITE

JUMPER

(REMOVE TO ADD

THERMOSTAT)

BLACK

WHITE

GREEN

POWER

CORD

GROUND

NOTE: IF AIR PROVING SWITCH IS NOT SUPPLIED, POWER IS SENT

DIRECTLY TO HIGH LIMIT SWITCH. SEE "DASHED" LINE.

ELECTRICAL CONNECTION DIAGRAM

NEUTRAL

GROUND

THERMOSTAT

MOTOR

HIGH LIMIT

SWITCH

SOLENOID

AIR PROVING SWITCH

ELECTRICAL LADDER DIAGRAM

IF ANY OF THE ORIGINAL WIRE AS SUPPLIED WITH THE APPLIANCE MUST BE

REPLACED, IT MUST BE REPLACED WITH WIRING MATERIAL HAVING A

TEMPERATURE RATING OF AT LEAST 302

O

F (150

O

C).

12

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.

Fan Housing

Chamber used for compressing 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 Hose

Flexible connector used to convey gas from supply line in building to heater.

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.

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.

Heater Component Function

Pilot Light Orifice

A metering device used to supply gas for the dual purpose of igniting the main burner and heating the thermocouple.

Pilot Safety Control Valve

A gas control valve which is held open by electrical power supplied by a pilot generator and which closes automatically to shut off the flow of gas to the main burner when the pilot flame is extinguished or becomes too small to light the main burner.

Pilot Shield

A formed sheet metal piece that fits around the pilot assembly to protect the the pilot flame against drafts.

Pilot Tube

Formed copper tube used to convey gas from the safety control valve to the pilot light orifice. The tube is internally

“tinned” when natural gas is used to resist the effects of sulphur in the fuel.

Regulator

The heart of any gas supply installation. Used to deliver a working pressure to the appliance under varying conditions in tank pressure.

Thermocouple

A thermoelectric device that converts heat energy directly into electrical energy. Works in conjunction with the electromagnet in the gas control valve thereby providing gas supply for the pilot light.

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.

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Parts Identification

PARTS SCHEMATIC

28

27B

27A

14

27C

25

24

23

22

21

20

32

8

10

10A

9

12

13

27

7

6

26

14

15

5

11

32

18

19

31

31

3

4

4

16

30

17

29

L.P

. GAS

SUPPL

Y

3

2

1

N.G.

SUPPL

Y

27

27A

27B

27C

28

29

30

31

32

23

24

25

26

19

20

21

22

Item

1

2

3

4

Description

Regulator, Single Stage (Propane Gas)

Regulator, Second Stage (Propane Gas)

Bushing 3/8 NPT x 1/4

Hose, 1/4 in. ID x 10 ft (Propane Gas).

Hose, 3/8 in. ID x 10 ft. (Natural Gas)

Adapter, 1/4 NPT x 9/16-18 UNF

Adapter, 1/2 NPT x 5/8-18 UNF

7

8

5

6

9

10

Thermostat with Bracket

Cover, Gas Control Valve

10A Bracket, Gas Control Valve

11 Bracket, Thermostat

12 Valve, Pilot Gas Control (Propane Gas)

Valve, Pilot Gas Control (Natural Gas)

13

Bushing, 1/2 x 1/4

Cord, Power, 5ft.

Cover, Junction Box

Junction Box

14

15

Orifice, Burner (Propane Gas)

Orifice, Burner (Natural Gas)

Burner Casting

Pilot Assembly with Orifice (Propane Gas)

16

17

18

Pilot Assembly with Orifice (Natural Gas)

Shield, Pilot

Thermocouple, 21 in.

Orifice, Pilot (Propane Gas)

Orifice, Pilot (Natural Gas)

Tube, Pilot with Nuts

Motor

Mount, Motor

Wheel, Fan

Housing, Fan

Switch, High Limit

Cover, High Limit

Chamber, Heat

Case, Assembly

Case Panel, Motor End

Case Panel, Burner End

Door, Pilot Access

Handle

Base

Screw, Pilot

Screw, Burner

Screw

(1) Specify fuel gas type and model number when ordering.

DESCRIPTION COLOR

Wire, High Limit Black

LENGTH

25 in.

DESIGN PART N

All 06373 Screw, 8 x 3/4 Sheet Metal

Screw

Washer

SC RIIPPTTIIO CAATTIIO N

High Limit Switch, Mounting

All Other Applications

Burner Mounting

PARTS LIST

21616

21584

21585

08026

02729

02741

08205

03497

02689

02740

21380

20290

05490

02808

05579

05566

23215

06665

01544

20496

22000

01098

06655

01519

01220

03231

03230

05568

23980

23981

05493

21615

05567

21425

23283 (1)

07330 (1)

07331 (1)

07748

09297

21412

08048

03068

09425

02330

07288

01589

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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 1 months ffrom tthe ddate oof ppurchase bby tthe end uuser, 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.

A warranty card on file at L.B. White will automatically qualify a unit and its component parts for warranty consideration. If a warranty card is not on file, a copy of the bill of sale will be required to establish warranty qualification. If neither is available, the warranty period will be 12 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 heater are free from defects both in material and workmanship for 12 m months ffrom tthe ddate oof ppurchase bby the eend uuser. Warranty is automatic if a component is found defective within 12 months of the date code marked on the part. If the defect occurs more than 12 months later than the date code but within 12 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 heater, and in any event L.B. White's liability in connection with the heater, 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.

Replacement Parts and Service

Contact your local L.B. White dealer for replacement parts and service or call L.B. White Co., Inc. at 1-800-345-7200 for assistance. Be sure that you have your heater model number and configuration number when calling.

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