Lb-white Pilot Manuel d'utilisateur

Pilot Light IgnitionInstallation and Service GuideAgricultural Animal Confinement Building Heaters150-22003

Safety PrecautionsGeneralInformation1.3-11August 1999LP ggas aand nnatural ggas hhave mman-mmade oodorants aadded sspecifically ffor ddetection oof ff

Safety PrecautionsGeneralInformation1. Do not attempt to install, repair, or service this heateror the gas supply line unless you have continuingexper

Safety PrecautionsGeneralInformationthree-prong receptacle. Failure to use a properlygrounded receptacle can result in electrical shock,person

General InformationInstallation Instructions1. Read all safety precautions and follow L. B. Whiterecommendations when installing this heater. Ifdurin

ABCDEFGH300'40'20' 50' 50' 50' 30' 30' 50' 20'50' 2.2-1

2.2-22Pipe SizingInstallationInstructionsEXAMPLE(Refer to Fig 2)IMPORTANT: If exact length is not on chart, use next longerlength. Select the size o

Tank SizingInstallationInstructionsATTENTION The following is supplied for informational purposesonly. Consult your LP gas supplier for specific req

2.4-11August 1999Tank Location and InstallationInstallationInstructionsATTENTION The following is supplied for informational purposesonly. Tank inst

LP Gas Tank ManifoldingInstallationInstructions2.5-11August 1999ATTENTION The following is supplied for informational purposesonly. Tank manifolding

Manual Shut-Off Valve, Hose and Regulator AssemblyInstallationInstructions1. Always use approved pipe thread compound suitablefor use with L.P. gas or

ForewordThe purpose of this Service Guide is to provide detailedinstructions and information for the installation, maintenance,troubleshooting and rep

2.7-11August 1999Sediment TrapInstallationInstructionsAssemble the tee, nipples and cap together and tightensecurely. The sediment trap assembly must

2.8-11August 1999Electrical RequirementsInstallationInstructionsATTENTION The following is supplied for informational purposesonly. All electrical w

Models 3346/348, 3377/379, 4408/4101. Disconnect the heater from its electrical supply andclose all fuel supply valves to the inlet of the heater. 2.

Remote Thermostat InstallationInstructions2.9-22Models 3346/348, 3377/379, 4408/410 ((Cont.)9. Reconnect the heater to its electrical supply and opent

August 19992.9-33Model AAS040 ((Cont.)7. Attach the ground lead terminal to the ground screw inthe enclosure.8. Push the exposed conductors of the pow

2.9-44August 1999Model AAB200 aand AAB2505. Secure the cord in place at the entry hole on the casefront with the strain relief provided in the thermos

1. Assemble according to the illustration and tighten alleyebolts securely.2. Make sure the heater is properly positioned beforeuse and is hung level.

Air DivertersInstallationInstructionsDepending on model number, two designs of air divertersmay be available for your heater. The air diverters allow

Air DivertersInstallationInstructionsAugust 19992.11-22One-PPiece AAir DDiverter1. Loosen the four blower outlet screws.2. Align the keyhole slots in

Start-UUp IInstructionsDetermine the pilot control valve type supplied on the heater.For heater with gas control valves with an internal lowpressure r

WARNINGFire and Explosion Hazard Not for home or recreational vehicle use. Installation of this heater in a home orrecreational vehicle may result i

Start-Up and Shut-Down InstructionsOperation InstructionsShut-DDown IInstructionsIf the heater is to be shut down for cleaning, maintenance, orrepair,

Variable Heat OutputOperationInstructions3.2-111. Some models of propane (LP) gas or natural gasheaters have a throttle valve for varying heat outputl

Periodic InspectionPreventativeMaintenance1.The aarea ssurrounding tthe hheater sshall bbe kkept cclearand ffree ffrom ccombustible mmaterials, ggasol

Cleaning InstructionsPreventativeMaintenance4.2-111. Before cleaning, shut off allgas supply valves anddisconnect electrical supply.2. The heater shou

Troubleshooting GuideTroubleshootingInstructionsREAD THIS ENTIRE SECTION BEFOREBEGINNING TO TROUBLESHOOT PROBLEMS.The troubleshooting flow charts in t

Troubleshooting Pilot FlameTroubleshootingInstructionsAugust 19995.1-22ATTENTION These illustrations are intended to provide a means toassist you in

August 19995.1-33Problem 1Pilot willnot light.Is LP gas cylinderor tank full?Ye sNoYe sYe sYe sYe sAre all fuelsupply valvesopen?Remove thesecomponent

Problem 2Pilot willnot stay litwhen pilotcontrolbutton isreleased.Is LP gas supply cylinder tank full?Ye sNoYe sYe sYe sYe sDid you allowsufficient ti

August 19995.1-55Problem 3Motor runs.Burnerdoes notlight withpilot lightlit.For units with air proving switch or centrifugal switch, is proper voltage

Table of ContentsSection 1 General Information Section/PageBasic Unit Description and Application . . . . . . . . . . . . . . . . . . . . . . . . .

Problem 4Motor doesnot run,heaterdoes notlight withpilot lightlit.Is proper voltagesupplied toheater powercord?NoYe sYe sYe sYe sYe sYe sIs thermostat

Problem 5Main burnercycles onand off repetitively.Pilot stayslit.Air provingswitch arm isout ofadjustment.Readjust flapper arm.Bend arm up slightly wi

Problem 7High limitswitch isopen.Is fan looseor dirty?Ye sNoYe sYe sYe sYe sTighten fan wheel setscrew(s) to motorshaft. Blow fan withcompressed air o

Problem 8Burner doesnot shut off when temperaturerequirementis satisfied.Does thermostat shutoff within ± 3° F.of set point?Ye sNoDebris is lodgedin s

Problem 12Motor“hums”.Are wires disconnectedbetween motorand capacitor?Ye sNoReconnect wires.Test for properoperation.Defective motor or capacitor. Re

Problem 13Heater isnotdeliveringproper airflow.Is blower outletblocked?Ye sNoRemove blockage(s).Clean heater as necessary.Defective motor or capacitor

6.1-11Voltage ChecksProcedureTesting for voltage at any of the components is a relativelyeasy procedure. The following illustrates how to checkvoltag

Continuity ChecksComponentTestingContinuity CChecksEquipment rrequired:Digital Volt/Ohm MeterExplanation:In a continuity test, you simply want to dete

Attention Many thermostats can be wired to open or close on anincrease in temperature. Make sure the thermostat is wired properly so thecontacts clos

Thermocouple and Power Unit TestsComponentTestingEquipment RRequired: Volt / Ohm Meter with DC ScaleThermocouple Test Kit, Part Number 500-08506The t

Testing PProcedures:(Applies to all thermocouples and gas control valves.)A. INITIAL PPREPARATION1. Disconnect the heater from its electrical supply.2

High Limit Switch TestsComponentTesting6.4-11August 1999Method oof TTest:Disconnect the heater from its electrical supply beforeconducting this test.R

Electrical Connection and Ladder Diagram7.1-11WiringDiagramsThe wiring diagram on the following page is provided to givethe qualified service person i

Wiring DiagramsElectrical Connectionand Ladder DiagramUsed oon:Model Design SequenceAll AllAugust 19997.1-22ELECTRICAL LADDER DIAGRAMELECTRICAL CONNEC

Component Identification and FunctionServicingInstructionsAll components must work together for proper heateroperation. However, as with anything ele

Component Identification and FunctionServicing InstructionsE.Fan HHousingAn assembly composed of the motor,fan wheel and housing for purposesof pullin

Component Identification and FunctionServicingInstructionsI.High LLimit SSwitchA manually resetable temperatureactivated switch. Its purpose is asa s

Component Identification and FunctionServicingInstructions8.1-44N.Pilot SSafetyA gas control valve which is heldControl VValveopen by electrical power

Model AS040Fan and MotorServicingInstructionsCleaning tthe FFan:1. Disconnect the heater from its electrical supply andclose all fuel supply valves to

Model 377/379Fan and MotorServicingInstructionsCleaning aand RReplacing tthe FFan:1. Disconnect the heater from its electrical supply andclose all fue

Models 346/348, 408/410, AB200, AB250Fan and MotorServicingInstructionsCleaning tthe FFan:1. Shut off the gas supply to the heater and disconnectthe h

Air-Proving Flapper (Sail)ServicingInstructions8.3-11The flapper is located in the blower outlet. As discussed inSection 9.1, Component Identificatio

For UUnits WWith FFlapper:1. Shut off gas supply and disconnect heater fromelectrical source.2. Disconnect air-proving switch leads.3. Some models may

Pilot AssemblyServicingInstructions8.5-111. Disconnect the heater from its electrical supply andclose all fuel supply valves to the heater.2. Open the

6. Pilot orifices may incorporate one or two holes,depending on design. Hold the orifice up to light tomake sure the orifice is clear of blockages.7.

August 19998.6-11ThermocoupleServicingInstructions1. Disconnect the heater from its electrical supply andclose all fuel supply valves to the heater.2.

August 19998.6-22ThermocoupleServicingInstructions Do not use pliers when removing or tightening theattachment nut or connector nut. Doing so willro

Very little actual servicing of the high-limit switch is required.However, it is good to know the location of the switch whenworking on the heater. T

High-Limit Switch ReplacementServicingInstructions12”Formed TabsSpacer8.7-22August 1999Specifically relating to the AB200 heater, the high limit is ac

Basic Unit Description and ApplicationPilot ignition agricultural building heaters are direct-fired,non-vented heaters used in the heating of animalco

August 19998.8-11Burner and Burner OrificeServicingInstructionsOver a period of time, the burner and orifice may start tobecome blocked if cleaning is

Burner and Burner OrificeServicingInstructions7. Remove the two screws and spacers located at theright and left hand top of the burner casting (ifappl

Equipment RRequired: Certified Leak Detectors1 - 3/16 Hex Head Allen Key2 - Low Pressure Gauge Kits, Part Number 550-00764ATTENTIONThis procedure is

Leak and Gas Pressure ChecksServicingInstructionsC. Leak CCheck1. Check all connections for gas leaks using approvedgas leak detectors. Gas leak test

Leak and Gas Pressure ChecksServicingInstructionsD. Reading PPressures1. With the heater operating, the pressure gaugesshould read the pressures speci

The preceding instructions dealing with inlet and manifoldpressure checks and leak testing generally apply to allcontrol valves. However, due to mode

Parts Identification GuideService Parts,Kits and AccessoriesThe parts identification guides on the following pages havebeen designed to give a quick r

August 19999.1-22Parts Identification GuideService Parts, Kits and AccessoriesWIRE SSELECTION TTABLEDESCRIPTION COLOR LENGTH PART NNO.Wire, Harness,Hi

Service Parts,Kits and Accessories28293130372527242632333435361234564140121314INSTALLATION OF GAS TRAIN ASSEMBLYFOR NATURAL GAS ONLY887791042391518192

Heater SpecificationsGeneralInformation1.2-11August 1999SPECIFICATIONSMaximum Input (BTUH) 60,000 115,000 170,000 40,000Minimum Input (BTUH) N/A N/A N

9.1-44August 1999Parts Identification GuideService Parts, Kits and AccessoriesWIRE SSELECTION TTABLEDESCRIPTION COLOR LENGTH DESIGN PART NNO.Wire, Hig

Service Parts,Kits and AccessoriesAugust 19999.1-55Parts Identification Guide32313433302928272619201716222425121182315522361041112161413353689198437TO

Parts Identification GuideService Parts, Kits and Accessories9.1-66August 1999WIRE SSELECTION TTABLEDDEESSCCRRIIPPTTIIOONN CCOOLLOORR LLEENNGGTTHH DDE

Service Parts,Kits and AccessoriesParts Identification GuideAugust 19999.1-77Models 3377 aand 33793536373433323031404126254249102923222124182027171619

Parts Identification GuideService Parts, Kits and Accessories9.1-88August 1999WIRE SSELECTION TTABLEDDEESSCCRRIIPPTTIIOONN CCOOLLOORR LLEENNGGTTHH DDE

Service Parts,Kits and AccessoriesAugust 19999.1-994240414347393837444546483433323122362420275025262819181721293014231211151049983576161371132455NATUR

Parts Identification GuideService Parts, Kits and Accessories9.1-110August 1999WIRE SSELECTION TTABLEDDEESSCCRRIIPPTTIIOONN CCOOLLOORR LLEENNGGTTHH DD

Service Parts,Kits and AccessoriesParts Identification Guide9.1-111323034373531334429282718173639384012526412345698NATURALGAS SUPPLY172011104243212224

Parts Identification GuideService Parts, Kits and Accessories9.1-112August 1999WIRE SSELECTION TTABLEDESCRIPTION COLOR LENGTH PART NNO.Wire, Gas Contr

Service Parts,Kits and AccessoriesParts Identification Guide3337363540383934333241424312354631302927261624281514107891123222120191817251312459.1-113Au

Heater SpecificationsGeneralInformationAugust 1999SPECIFICATIONSMaximum Input (BTUH) 200,000 250,000Minimum Input (BTUH) N/A 160,000760 CFM 1100 CFM11

August 19999.2-11This section provides part numbers for many of the more commonly requested kits and accessories used on pilot lightignition heaters.

Kits and AccessoriesService Parts, Kits and AccessoriesTEST KKITSPARTNUMBER550-00764 Low Gas Pressure Test Kit550-08506 Thermocouple Test KitDESCRIPT

Equipment and PartsWarrantyGuidelinesEQUIPMENTL.B. White Co., Inc. warrants that the component parts of itsheater are free from defects in material an

Warranty ReturnsWarrantyGuidelines10.2-11Warranty RReturnsTo complement L.B. White’s warranty, the following has beenwritten to simplify the warranty