American Water Heater 520 Manuel d'utilisateur télécharger pdf



Iftheerrorcodeisindicatedonthe3‐digit7‐SegLEDonthePC B(Part#701)ofthewaterheater

(and/ortheremotecontroller),refertoSectionB.

<<Ittakeslongtimetogethotwateratthefixtures>>

・ Thetimeittakestodeliverhotwaterfromthewaterheatertoyourfixturesdependson

thelengthofpipingbetweenthetwo.Thelongerthedistanceorthebiggerthepipes,

thelongeritwilltaketogethotwater.

・ Ifyouwouldliketoreceivehotwater

toyourfixturesquicker,youmaywanttoconsidera

hotwaterrecirculationsystem.

<<Thewaterisnothotenoughorturnscoldandstayscold>>

・ Comparetheflowandtemperature.Refertothe“Outputtemper aturechart”ofthe

installationmanual.

・ Checkcrossplumbingbetweencoldwaterlinesandhotwaterlines.

・ Checkifthegassupplyvalvefullyopen,thegaslinesizedproperlyandthegassupplies

pressureenough.Refertothe“Gas

supplyandgaspipesizing”oftheinstallationmanual.

・ Checkthesettemperature,andchangethedipswitchsetting.RefertoSectionD.

・ Referto“Watercircuit”inthissection.

<<Thewateristoohot>>

・ Checkthesettemperature,lowersettingtemperature.

<<Thehotwaterisnotavailablewhenafixtureisopened>>

・ Refertothe“Powersupplycircuit”and“Watercircuit”inthissection.

<<Fluctuationinhotwatertemperature>>

・ Checkifthefilteronthecoldwaterinletcleaned.(Part#409)

・ Checkifthegaslinesizedproperlyandthesupplygaspressuresufficient.

・ Checkforcrossconnectionbetweencoldwaterlinesandhotwaterlines.

・ Referto“Watercircuit”inthissection.

<<Unitdoesnotignitewhenwatergoesthroughthewaterheater>>

・ Refertothe“Powersupplycircuit”and“Watercircuit”inthissection.

・

Ifyouusetheremotecontroller,turn thepowerbuttononandthenthegreenLEDwillli t.

・ Checkifthefilteronthecoldwaterinletcleaned.(Part#409)

B.Errorcodes

031:Incorrectdipswitchsetting

・ CheckthedipswitchsettingsonthePCB.RefertoSectionD.

101:Warningforthe“991”errorcode

・

Checkthegastypeofthewaterheater.Ifit’swronggastypemodel,replacethewaterheatertocorrectone.

・ Checkifthereisanyblockage(Forexample,Dampersticking,VentFlapsinstalledonthe

terminator,Snowbuilduparoundterminator,Installedinacloset(Noventilationorlack

of combustion air)) in the intake air and/or exhaust. Refer to the “Vent termination

clearances”oftheinstallationmanual.

・ Ifthe

waterheaterisinstalledasadirect‐ventsystem,checkwhetherthereareenough

distancebetween the intake air terminal andthe exhaust terminal. Refer to the “Vent

terminationclearances”oftheinstallationmanual.

・ Checkifthetotalventlengthdoesn’texceed50ftandthe#ofelbowsis

lessthan5Ea.

・ Check the altitude/elevation of area of where the water heater installed. Refer to the

“High‐altitudefunction”oftheSectionD.Andchangethedipswitchsettings.

・ Check ifthere isgreaseand/or dirtin theburner (Part #101),and the fan motor (Part

#114),especiallyif

thewaterheaterhasbeeninstalledinacontaminatedarea.

・ Checkifthereisdustandlintinheatexchanger.

・ Checkthemanifoldpressureofthewaterheater.Refertoinstallationmanual.

111:Ignitionfailure

1. Checkgassupplyandinletgaspressure.

2. CheckiftheHi‐limitswitch(Part#432)isproperlyfunctioning.

3. Checkforconnection/breakageofwires(Part#110,404,704,705,710,719),burnmarks

onthecomputerboard(Part#701),and/orsootontheflamerod(Part#106).Andthen

if

O.H.C.F(Part#008and/or#404)isbreakage,Consultthemanufacturer.

4. Checkifthereisabuzzingsparkignitionsoundcomingfromtheburner(Part#101)when

waterheaterpreparesforcombustion.

5. Listen for the double “clunk” sound coming from the gas valves assembly (Part #118)

whenwater

heatergoesintocombustion.

6. (Onlynosparkingand/orkicksound)Checkvoltageoneachwiretogasvalvesassembly

(Part#118)and/ortheigniter(Part#123).Refertothe“AppendixA”inSectionC.

*Nosparkingsound >>>>>Refertothe#1at“AppendixA”inSectionC.

*No

kicksound >>>>>Refertothe#2at“AppendixA”inSectionC.

7. Checkifthereisleakingfromheatexchanger(Part#401or456)

8. Checkifthereisdustandlintinnozzlesofthemanifold(Part#118).

9. Checkcurrentontheflamerod(Part#106).

Refertothe#3at“AppendixA”inSectionC.



121:Lossofflame

1. Checkgassupplyandinletgaspressure.

2. CheckiftheHi‐limitswitch(Part#432)isproperlyfunctioning.

3. Checkforconnection/breakageofwires(Part#110,404,704,705,710,719),burnmarks

onthecomputerboard(Part#701),and/orsootontheflamerod(Part#106).Andthen



ifO.H.C.F(Part#008and/or#404)isbreakage,Consultthemanufacturer.

4. Checkifthereisleakagefromheatex changer(Part#401or456).

5. Checkifthereisdustandlintinnozzlesofthemanifold(Part#118).

6. Checkcurrentontheflamerod(Part#106).Referto

the#3at“AppendixA”inSectionC.

311,321,331,341*:Disconnected/short‐circuitedthermistor

・

Checkforconnection/breakageofwiresand/ordebrisonthermistor(Part#422,433,418,706,707,721).

・ Checkthermistorresistance.Refertothe“AppendixD”inSectionC.

391:Air‐fuelRatioRodfailure

・

Checkforconnecti o n/breakageofwires(Part#710)and/orsootontheAFRrod.(Part#106).



3

A.Troubleshooting

C.WiringDiagramandcheckpointoftheWaterheater

<Rightbankofdipswitches>

441:FlowSensorfailure(OnlyEas

‐Linksystem)

・ Check

for

connection/breakageofwiresand/ordebrisonimpeller(Part#429,708).

510,551:AbnormalMainandGasSolenoidValve

・

Checkforconnection/breakageofwires(Part#705)and/orburnmarksonthecomputerboard(Part#701)

.

・ Resetpowersupplyofthewaterheater.

・ Check voltage on the each valve on the gas valves assembly (Part #118). Refer to the

“AppendixC”inSectionC.

611,621*:FanmotorandExhaustFanmotorfault

・ Check

for

connection/breakageofwires,dustbuildupinthefanmotor/Exhaustfanmotor

(Part#114,124)and/orburnmarksonthecomputerboard(Part#701).

・ Checkforfrozen/corrosionofconnectorsofthefanmotor(Part#114,124).

・ Check voltagebetweenbluewire andeach wireofthe fan motor(Part #114,124)during

operation.

Refertothe“AppendixB”inSectionC.

631:AbnormalExternalPump

・ CheckwhetherthepumpconnectedtoPCB(Part#701)worksproperly.

651,661:Watercontrolvalvefault(OnlyEasy‐Linksystem)

・ Check the water control valve (Part #423), connection/breakage of wires (Part #423),

motordrivelockedduetoscalebuildup,and/orwaterleakage.

・ Checkvoltagebetweenblackwireandredwire.Refertothe“AppendixF”inSectionC.

701:Computerboardfault

・

Checkforconnection/breakageofwires(Part#708)and/orburnmarksonthecomputerboard(Part#701).

711:Hi‐limitswitchtrip/Gassolenoidvalvedrivecircuitfailure

・ Check connection/breakage of wires (Part #705) and/or burn marks on the computer

board(P art#701).

721:Falseflamedetection

1. Cleantheflamerod(Part#106).

Forindoormodels,checkifcondensatedrainisinstalledontheventcollarofthewaterheater.

3. Checkifthereisleakingfromheatexchanger(Part#401or456).

741:Miscommunicationbetweenwaterheaterandremotecontroller

Checkthemodeltypeoftheremotecontroller.Modelna me9007603005(TM‐RE30)isthe

correctone.

2. Inspect for the connections between the water heater and remote controller. Refer to

“Remotecontrollerconnections”sectionintheInstallationmanual.

3. Checkthepowersupplyofthewaterheater.

Ifthiserrorcodeappearsonlythe3‐digit7‐SegLEDonthePCB(Part#701),chec kthevoltage

ontheremotecontrollerterminalonthePCB.Refertothe

“AppendixE”



Section

.

5. Ifthiserrorcodeappearsonlyremotecontroller,replacethePCB(Part#701).

6. IfthiserrorcodeappearsboththePCB(Part#701)andtheremotecontroller,replacethe

remotecontroller.

761: Miscommunication between Parent unit and Child units for Easy‐link

system



(Only520Hmodels)



・ Check if connection between the  parent unit and the child units are correct. Refer to

“Easy‐Linksystem”sectionintheInstallationmanual.

941*:

Abnormalexhausttemperature(Only520Hand320HDirectVentIndoor)

・ Checkifthesettemperatureishigherthan140°F(60°C)andthesystemisRecirculation.

・

Checkexhaustthermistorre sistance.Refertothe“AppendixD”inSectionC.

991:Imperfectcombustion

・ Refertothe“Errorcode101”inthissection.

<<Thefanmotorstillspinningafteroperationhasstopped>>

・ Thisisnormal.Afteroperationhasstopped,thefanmotorkeepsrunningfor35seconds

inordertore‐ignitequickly,aswellaspurgealltheexhaustgasoutoftheflue.

<<Abnormalsoundfromwaterheater>>

・ Anabnormalsoundfromthewaterheatersiscausedbynotenoughairsupplyorwrong

installations.Thewaterheaterneedsmorecombustionair.Refertothe “Error101”inthe

SectionB.

<<Powersupplycircuit>>

1. If the remote controller installed, pressthe “ON/OFF”button of the remote controller,

andmakesurethatthegreenLEDonthe“ON/OFF”buttonoftheremotecontrollerislit.

Restartthewaterheater.

2. Checkifthatthe3‐digit7‐SegLEDonthePCB(Part#701)of

thewaterheaterislit.Ifso,

thepowersupplycircuitofthewaterheaterisundernormalcondition.Next,refertothe

“Watercircuit”inthissection.

3. Checkthefuseonthesurgebox(Part#715),andifithasabrownspot,needtoreplaceit.

Checkthepowersupply,andmakesurethatthewaterheaterhas120VAC.

5. If the 3‐digit 7‐Seg LED on the PCB (Part #701) isn’t lit, some electrical parts can be

broken.Consultthemanufacturer.

<<Watercircuit>>

1. Ifyousettheremotecontroller,turnthepowerbuttononandthenthegreenLEDwilllit.

2. Open all hot water faucets, and makesure that thereis enough water flow. This water

heaterneedsatleast0.5GPMwaterflowtooperate.

3. Checkforreverseconnection

andcrossconnection.

4. Checkifthefilteronthecoldwaterinletcleaned.(Part#409)

5. Checkifthereisnodebrisorobstructiononthefixtures.

6. Check if water ways in the water heater are frozen. If so, unfreeze them. And refer to

installationmanualtoprotect

yourwaterheaterfromfreeze.

7. Checkiftheinletwaterpressureishigherthan40psi.Andifit’slowerthan40psi,need

toincreasethepressure.

8. Checkforconnectionsandbreakageofwires(Part#423,429).

9. Check if the motor drive of the water control valve

 (Part #423) is locked due to scale

buildup,and/orwaterleakage,Consultthemanufacturer.

<Leftbankofdipswitches>

Leftbank

Rightbank



AppendixD(Forerrorcode:311,321,331,341and941)



・ Mixingthermistor(FindthemarkingofNo.113ontheconnector)

Checkpoint“E1”

・ Outputthermistor(Find themarking of No.12on theconnector)

Checkpoint“E2”

・ Inlet thermistor (Find the marking of No.42 on the connector)

Checkpoint“E3”

Checkresistanceb etweenblackwireandblackwire.



Temp erat ure

°F

50 59 68 77 86 95

C 10 15 20 25 30 35

Resistance kΩ 15.4 12.6 10.3 8.5 7.0 5.9



・ Exhaustthermistor(FindthemarkingofNo.52ontheconnector)

Checkpoint“K1”

Checkresistanceb etweenwhitewireandwhitewire.



Temp erat ure

°F 50 59 68 77 86 95

C 10 15 20 25 30 35

Resistance kΩ 19.5 15.9 13.0 10.7 8.9 7.4

Allcheckpointsarenormal?

Yes>>ReplacethePCB.(Part#701)

No>>

Replacethewrongthermistor.(Part#422,433,418,706)



AppendixE(F orerrorcode:741)



Refercheckpoint“F”onthewiringdiagramabove.

CheckvoltageontheremotecontrollerterminalonthePCB.(Normal :11to25VDC)

Thischeckpointisnormal?

Yes>>Replacetheremotecontroller.

No>>ReplacethePCB.(Part#701)



AppendixC(F orerrorcode:510and551)



Refercheckpoint“C”inthediagramtotheleftandfollowings.

Checkvoltageontheeachvalveonthegasvalvesassembly.

・

Betweenbluewireandli ghtbluewire(#3).(Normal:78to100VDC)

・ Betweenbluewireandgreenwire(#9).(Normal:78to100VDC)

・ Betweenbluewireandorangewire(#53).(Normal:78to100VDC)

・ Betweenbluewireandredwire(#73).(Normal:78to100VDC)

Allcheckpointsarenormal?

Yes>>Replacethegasvalvesassem bly.(Part#118)



No>>ReplacethePCB.(Part#701)

AppendixB(F orerrorcode611and 621)



Referch eckpoint

“G1”

&

“G2”

inthediagram



totheleftandfollowings.

・ Checkvoltagebetweenredwireandbluewire.

(Normal:110to160VDC)

・ Checkvoltagebetweenyellowwireandbluewire.

(Normal:13to17VDC)

・ Checkvoltagebetweenorangewireandbluewire

(Normal:2.0to6.5VDC)

Allcheckpointsarenormal?

Yes>>ReplacethefanmotorandExhaustfanmotor.(Part#114&124)

No>>ReplacethePCB.(Part#701)



AppendixF(F orerrorcode:651and661)



Refercheckpoint“J”onthewiringdiagramabove.

Checkvoltagebetweenbluewireandbrownwire.(Normal:13to16VDC)

Thischeckpointisnormal?

Yes>>ReplacetheWatercontrolvalve.(Part#423)

No>>ReplacethePCB.(Part#701)

AppendixA(Forerrorcode111)



Checkthesepointsduringignitionstage.



#1.Refercheckpoint“B2”onthewiringdiagramabove.

Checkvoltagebetweenpurplewires.

(Normal:90to110VAC)

ThisCheckpointisnormal?

Yes >>Replacetheigniter(Part#123)

No >>GotoNext

#2.Refercheckpoint“C”and“H1”onthewiringdiagramabove.



Checkthevoltagebellows.

C:Betweenbluewireandlightbluewire(#3).

(Normal:78to100VDC)

C:Betweenbluewireandorangewire(#53).

(Normal:78to100VDC)

H1:Checkthevoltagebetweenwhitewireandredwire.

(Normal:1to15VDC)

Thesecheckpointsare

normal?

Yes>>Replacethegasvalvesassembly.(Part#118)

No>>ReplacethePCB.(Part#701)

#3.Checkcurrentthoughttheorangeflamerodwire(Part#710).

(Normal:morethan1μA)

Thischeckpointisnormalduringoperation?

Yes >>ReplacethePCB.(Part#701)

No >>

Replacetheflamerod.(Part#106)

D.DipswitchSettingsonthecomputerboardofthewaterheater

Changethedipswitch settingswhenthepowersupplyisturningoff.

Thedarksquareisthedirectionthedipswitchshouldbesetto.

DEFAULTisthefactorysetting.

FMspeedisincreasedautomatically.

TheGasTypeandModelTypedipswitchshould

alreadybeproperlypresetfromthefactory.

*The 341, 621 and 941 error codes are applied to

the520Hand320HDirectVentIndoormodelonly.

BK: BLACK

R: RED

W: WHITE

G: GREEN

BL: BLUE

O: ORANGE

Y: YELLOW

P: PURPLE

BR:BROWN

LB:LIGHT BLUE

Singleunitisthesameasthechi ldunit.

Propane

Natural

Gas

Gastype

Eas

‐Linksystem

DEFAULT

Parent

Unit

Child

Unit



High‐altitudefunction

FM++

(4,000to

5,000ft)

DEFAULT

(0to

2,500ft)

Over

5,000ft:



Consult

the

manufacturer



FM+

(2,500to

4,000ft)

Inlet

thermistor

Mixing

thermistor

Output

thermistor

Air-fuel

ratio rod

Ground

Flame rod

SV3

SV1

SV2

O.H.C.F

BL BL

Parent

Remote controller

23456

OFF

7 8

23456

OFF

7 8

Gas

Propor-

tional

Valve

Flow

Sensor

Hi-limit switch

for exhaust

Exhaust

thermistor

Water

Control

valve

Igniter

rod

Hi-limit

switch

O.H.C.F

520H / 320H Direct

Vent Indoor Only

MAX button

MIN button

Increase button

Error call button

Decrease button

Alarm

port

Pump port

Burning lamp

7 Seg LED

Number display button

Left bank

of dipswitches

Right bank

of dipswitches

Fan motor for

exhaust

Fan

motor

Heaters

Freeze protection

thermostat

520H / 320H Direct

Vent Indoor Only

J

9007603005

(TM‐RE30)

D2

D1

B1

B2

G2

F

Modeltype

520H Outdoor

and

320HOutdoor

520H Direct

Vent Indoor

 and

320HDirect

Vent Indoor

1 2

Résumé du contenu

Page 1 - A.Troubleshooting

Iftheerrorcodeisindicatedonthe3‐digit7‐SegLEDonthePC B(Part#701)ofthewaterheater(and/ortheremotecontroller),refertoSection

Page 2 - Item# Part# Description

A401402403404407408409410411412413414415416417418419420414421422423424425428414429414436430432433419434435438440441442706445052419414420443437405446BB

Plus de documents pour Chauffe-eau et chaudières American Water Heater 520

Voir le document American Water Heater 520 Spécifications

American Water Heater 520 Spécifications (52 pages)

Commentaires sur ces manuels

Pas de commentaire

American Water Heater 520 Manuel d'utilisateur

Naviguer en ligne ou télécharger Manuel d'utilisateur pour Chauffe-eau et chaudières American Water Heater 520. Indoor/Outdoor - State Water Heaters Manuel d'utilisatio

Résumé du contenu

Plus de documents pour Chauffe-eau et chaudières American Water Heater 520

Commentaires sur ces manuels

Produits connexes et manuels pour Chauffe-eau et chaudières American Water Heater 520