Takagi AT-M50 User manual

BK:BLACK
P:PURPLE
LB:LIGHT BLUE
BL:BLUE
G;GREEN
Y:YELLOW
O:ORANGE
BR:BROWN
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Iftheerrorcodeisindicatedonthe7‐Seg‐LEDonthePCB(Part#702)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temperature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#437)
・ 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
lightup.
・ Checkifthefilteronthecoldwaterinletcleaned.(Part#437)
・ Referto“Watercircuit”inthissection.
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is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.
・ Checkifthereisgreaseand/ordirtintheburner(Part#101)andthefanmotor(Part
#416),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#403)isproperlyfunctioning.
3. Checkforconnection/breakageofwires(Part#111,402,705,707),burnmarksonthe
computerboard(Part#701),and/orsootontheflamerod(Part#103).Andthenif
O.H.C.F(Part#402)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valveassembly(Part#114)
whenwaterheatergoesintocombustion.
6. (Onlynosparkingand/orkicksound)Checkvoltageoneachwiretogasvalvesassembly
(Part#114)and/ortheigniter(Part#102).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444).
8. Checkifthereisdustandlintinnozzlesofthemanifold(Part#114).
9. Checkcurrentontheflamerod(Part#103).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#403)isproperlyfunctioning.
3. Checkforconnection/breakageofwires(Part#111,402,705,707),burnmarksonthe
computerboard(Part#701),and/orsootontheflamerod(Part#103).Andthenif
O.H.C.F(Part#402)isbreakage,Consultthemanufacturer.
4. Checkifthereisleakagefromheatexchanger(Part#401or444).
5. Checkifthereisdustandlintinnozzlesofthemanifold(Part#114).
6. Checkcurrentontheflamerod(Part#103).Refertothe#3at“AppendixA”inSectionC.
311,321,331:Disconnected/short‐circuitedthermistor
・ Checkforconnection/breakageofwiresand/ordebrisonthermistor(Part#405,424,430,704).
・ Checkthermistorresistance.Refertothe“AppendixD”inSectionC.

M
Ma ai in nt te en na an nc ce e s sh he ee et t   6 63 3V V1 15 51 1‐ ‐3 3
A.Troubleshooting
C. WiringDiagramandcheckpointoftheWaterheater
Thelowerbankhassettingsfor
threefunctions,shownbelow.
<Lowerbankofdipswitches>
391:Air‐fuelRatioRodfailure
・ Checkforconnection/breakageofwires(Part#705)and/orsootontheAFRrod.(Part#103) .
441:FlowSensorfailure(OnlyEasy‐Linksystem)
・ Checkforconnection/breakageofwiresand/ordebrisontheflowsensorimpeller(Part#421).
510,551:AbnormalMainandGasSolenoidValve
・ Checkforconnection/breakageofwires(Part#707)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#114).Refertothe
“AppendixC”inSectionC.
611:Fanmotorfault
・ Checkforconnection/breakageofwires,dustbuildupinthefanmotor(Part#416)and/or
burnmarksonthecomputerboard(Part#701).
・ Checkforfrozen/corrosionofconnectorsofthefanmotor(Part#416).
・ Checkvoltagebetweenbluewireandeachwireofthefanmotor(Part#416),andcheck
resistancebetweenwhitewireandredwire.Refertothe“Appen dixB”inSectionC.
631:Externalpumpfailure
・ Checkwhetherthepumpconnectedtocentralcomputerboardworksproperly.
651,661:Watercontrolvalvefault(OnlyEasy‐Linksystem)
・ Checkthewatercontrolvalve(Part#418),connection/breakageofwires(Part#418),
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.
681:Externalfanmotorfailure
・ Checkwhethertheexternalfanmotorconnectedtocentralcomputerboardworksproperly.
701:Computerboardfault
・ Checkforconnection/breakageofwires(Part#707)and/orburnmarksonthecomputer
board(Part#701).
721:Falseflamedetection
1. Cleantheflamerod(Part#103).
2. 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444).
741:Miscommunicationbetweenwaterheaterandremotecontroller
1. Checkthemodeltypeoftheremotecontroller.ModelNo.9007603005(TM‐RE30)isthe
correctone.
2. Inspecttheconnectionsbetweenthewaterheaterandremotecontroller.Refertothe
“Remotecontrollerconnections”oftheInstallationmanual.
3. Checkthepowersupplyofthewaterheater.
4. Ifthiserrorcodeappearsonlythe7‐SegLEDonthePCB(Part#702),checkthevoltageon
theremotecontrollerterminalonthePCB.Refertothe“AppendixE”inSectionC.
5. Ifthiserrorcodeappearsonlyremotecontroller,replacethePCB(Part#702).
6. IfthiserrorcodeappearsboththePCB(Part#702)andtheremotecontroller,replacethe
remotecontroller.
761: MiscommunicationbetweenParentunitandChildunitsforEasy‐linksystem
・ Checkiftheconnectionsbetweentheparentunitandthechildunitsarecorrect.Referto
“Easy‐Linksystem”sectionintheInstallationmanual.
991:Imperfectcombustion
・ Refertothe“101”errorcodeinthissection.
<<Thefanmotorstillspinningafteroperationhasstopped>>
・ Thisisnormal.Afteroperationhasstopped,thefanmotorkeepsrunningfrom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“101”errorcode
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7‐SegLEDonthePCB(Part#702)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#722),andifithasabrownspot,needtoreplaceit.
4. Checkthepowersupply,andmakesurethatthewaterheaterhas120VAC.
5. Ifthe7‐SegLEDonthePCB(Part#702)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
lightup.
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#437)
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#418,421).
9. Checkifthemotordriveofthewatercontrolvalve(Part#418)islockedduetoscale
buildup,and/orwaterleakage.Consultthemanufacturer.
<Upperbankofdipswitches>
Theupper bank hascertain
specialfunctionsandgenerally
shouldnotneedadjustment.

AppendixD(Forerrorcode311,321and331)

・ 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betweenblackwireandblackwire.

Tempe ra ture
°F 505968778695
°C 101520253035
ResistancekΩ15.4 12.6 10.3 8.57.05.9

Allcheckpointsarenormal?
Yes>>ReplacethePCB.(Part#701)
No>>Replacethewrongthermistor.(Part#405,424,430)

AppendixE(Forerrorcode741)

Refertocheckpoint“F”onthewiringdiagramabove.
CheckvoltageontheremotecontrollerterminalonthePCB.
(Normal:11to15VDC)
Thischeckpointisnormal?
Yes>>Replacetheremotecontroller.
No>>ReplacethePCB.(Part#702)

AppendixC(Forerrorcode510and551)

Referto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light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assembly.(Part#114)
No>>ReplacethePCB.(Part#701)

AppendixB(Forerrorcode611)

Refertocheckpoint“G”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.(Part#416)
No>>ReplacethePCB.(Part#701)

AppendixF(Forerrorcode651and661)

Refertocheckpoint“J”onthewiringdiagramabove.
Checkvoltagebetweenblackwireandredwire.(Normal:13to16VDC)
Thischeckpointisnormal?
Yes>>ReplacetheWatercontrolvalve.(Part#418)
No>>ReplacethePCB.(Part#701)
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.
AppendixA(Forerrorcode111)

Checkthesepointsduringignitionstage.

#1.Refertocheckpoint“B”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#102)
No >>GotoNext
#2.Referto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#114)
No>>ReplacethePCB.(Part#701)
#3.Checkcurrentthoughttheorangeflamerodwire(Part#705).
(Normal:morethan1μA)
Thischeckpointisnormalduringoperation?
Yes >>ReplacethePCB.(Part#701)
No>>Replacetheflamerod.(Part#103)
A
AT TM M5 50 0 
Singleunitisthesameasthechildunit.
(40 C)
104 F
(74 C)
165 F
(63 C)
145 F
(49 C)
120 F
DEFAULT
12345678
OFF
ON
12345678
OFF
ON
12345678
OFF
ON
12345678
OFF
ON
(46 C)
115 F
(85 C)
185 F
(68 C)
155 F
12345678
OFF
ON
12345678
OFF
ON
12345678
OFF
ON
12345678
OFF
ON
(57 C)
135 F
Temperatureset
Upperbank
Lowerbank
TheGasTypedipswitch
shouldalreadybe
properlypresetfrom
thefactory.
Propane
12345678
OFF
ON
Natural
Gas
12345678
OFF
ON
Gastype
Child
Unit
DEFAULT
Parent
Unit
12345678
OFF
ON
12345678
OFF
ON
Eas
y
‐Linksystem
OFF
ON
12345678
Direct
vent
OFF
ON
12345678
Outdoor
OFF
ON
12345678
Indoor
DEFAULT
Installationtype
Centralcom
p
uterboard
9007603005
(
TM‐RE30
)

L
H2
A3
I
A
B
H1
C
A1
J
K
F
D1 D2
E1
E2
E3
L
G
M
N
AA
A2L
L
L
L
L
I
AB
H1 H2
C
J
E1
E2
E3
C1
C2
G
C1
C2
Heater
Thermostat
Inlet
thermistor
Output
thermistor
Mixing
thermistor
BK
BK
BK
GFI
Trans-
former
123456
OFF
BR
BR
120 VAC
10A
G
Ground
W
BK BR
Ground
Air-fuel
ratio rod
Ground
Flame
rod
123456
OFF
123456
OFF
MV
SV1
SV2
SV3
Remote controller
Parent
W
W
IG
Ground
Ground
Inlet
thermistor
Output
thermistor
Mixing
thermistor
BK
BK
BK
123456
OFF
Air-fuel
ratio rod
Ground
Flame
rod
MV
SV1
SV2
SV3
FM
Igniter
rod
IG
Heater
Heater
Heater
Heater
Heater
7
7
8
8
RYGWBK
BL
ROYGWBK
BL
RYGW
BK
BL
ROYGW
BK
BL
Water
Control
valve
Water
Control
valve
BK
BK
BK
BK
BK
BK
BK
BK
Y
G
O
O
G
Y
BK BK
W
W
BL
BK
BK
RR
BL
BL
GG
R
BL
Y
O
W
P
PP
PP
PP
P
G
WR BK
W
R
WR BK R
W
BL
LB
G
O
R
W
BK
Y
WBK WBK
BL
LB
G
O
R
BK
W
BK
W
W
BK
BK
W
W
W
W
W
W
W
Gas
Porpor-
tional
Valve
Flow
Sensor
WR BK
W
R
WR BK R
W
Hi-
limit
BL
O.H.C.F
BL
BL BL
BL
FM
R
BL
Y
O
W
BL
Hi-
limit
BL
O.H.C.F
BL
BL BL
BL
BL
Flow
Sensor
Left side unit Right side unit
Surge
box
BK
W
MAX button
MIN button
Increase bu tton
Decrease bu tton
Burning lamp
Communication
lamp (right)
Communication
lamp (left)
Multi-system
on line lamp
Lower bank of
dipswitches
Upper bank of
dipswitches
7 Seg LED
Pump test run
Error call
button
Burning lamp
FM
port
Pump
port
Button to check
unit number
Priority SW
Alarm
contact
Draft switch
Dipswitches
MAX button
MIN button
Increase button
Decrease button
2
1
Dipswitches
Gas
Porpor-
tional
Valve
Igniter
rod

422
419
411
419
411
424
406
407
419
411425
427
423
407
406
425
427
411
419
411
419
422
411
419
411
439
440
441
442
443
429 425
421
411
419
406
407
424
429
425
432
419
411
407 406
430
434
3
433
425
438
437
436
435
113
411 420
419
427
426
418
420
428
421
419
419
426 427
411
411
411
419
431
411
418
430
114
115
116
705
113
113
117
707
707
102
121
119
118
707
707
109 112
106
111
105
113
113
104
103
108
107
113
110
101
114
115
116
113
113
117
707
707
102
121
119
118
707
707
109 112
106
111
105
113
113
104
103
108
107
113
110
101
123
124
126
125
3
123
122
120
705
3
132
133
136
135
137
402
401
403
404
406
407
408
409
410 411
113
412
413
414
415
113
416
405
402
401
403
404
406
407
408
409
410 411
113
412
413
414
415
113
416
405
417
133
134
131
128
130
127
129 137
113
417
138
139
139
138
419
420
419
411
424
406
407
419
411425
427
448
407
406
425
427
411
419
411
419
411
439
440
441
442
443
429 425
421
419
411
406
407
424
429
425
451
407
406
430
434
420
411
418
411
449
421 419
411
450
418
430
3
433
425
438
437
436
435
113
419
411 419
422
422
411
419
427
426
411
427
426
411
419
419
411
419
E.ComponentsDiagram/PartsList
Caseassembly
Waterwayassembly

Computerboardassembly

Item#
Part#
Description
910
models
T‐M50
models
416
417
418
419
420
319143‐043
319143‐066
319143‐086
319143‐077
319143‐083
EKK25
EKK26
EKH32
EX01H
EZM16
Fanmotor
Fusefixingplate18
Watercontrolvalve
Fastener“16AG”
O‐ringP16FKM
421
422
423
424
425
319143‐092
319143‐251
319143‐254
319143‐085
319143‐333
EKH33
EM285
EM290
EKK38
EX001
Flowsensor
Connectingpipe
Leftcoldpipefor910(T‐M50)
Inletthermistor
Heater502
426
427
428
429
430
319143‐068
319143‐125
319143‐273
319143‐124
319143‐190
EX002
EK031
EM328
EKH38
EKK1A
Heater101
Heaterfixingplate16
Lefthotpipefor910(T‐M50)
Heaterfixingplate20
Mixingthermistor
431
432
433
434
435
319143‐256
319143‐255
319143‐076
319143‐259
319143‐070
EM292
EM291
EX021
EM295
EM222
Righthotpipefor910(T‐M50)
Rightcoldpipefor910(T‐M50)
Heaterplate
Waterinlet
Filterplug
436
437
438
439
440
319143‐071
319143‐072
319143‐073
319143‐269
319143‐328
EAM25
EX006
EZN21
EM309
EW009
O‐ringP25FKM
Waterinletfilter
O‐ringJASO#1021FKM
Wateroutlet
ScrewM4x6
441
442
443
444

445
319143‐223
319143‐199
319143‐080
319143‐270

319143‐271
EKN67
EKK2E
EZM06
EM323

EM326
Heater117
Outletdrainplug
O‐ringP6FKM
Heatexchangerassemblyfor
910ASME(T‐M50ASME)
Connectingpipefor910
ASME(T‐M50ASME)
446
447

448

449

450
319143‐349
319143‐278

319143‐310

319143‐313

319143‐312
EZM18
EM370

EM456

EM459

EM458
O‐ringP18FKM
Connectingpipefor910
ASME(T‐M50ASME)
Leftcoldpipefor910
ASME(T‐M50ASME)
Lefthotpipefor910
ASME(T‐M50ASME)
Righthotpipefor910
ASME(T‐M50ASME)
451319143‐311 EM457Rightcoldpipefor910
ASME(T‐M50ASME)
Item#
Part#
Description
910
models
T‐M50
models
701
702
703
704
705
319143‐266
319143‐267
319143‐232
319143‐233
319143‐243
EM306
EM307
EM258
EM260
EM271
Rightandleftcomputerboard
Centralcomputerboard 
PV‐FSwire
Thermistorconnectingwire
Flamerodwire
706
707
708
709
710
319143‐231
319143‐248
319143‐245
319143‐183
319143‐274
EM257
EM280
EM277
EKH43
EM329
Igniterwire
Gasvalvewire
AC100Vwire
Rightandleftcomputerboardcover
Centralcomputerboardcover
711
712
713
714
715
319143‐247
319143‐234
319143‐235
319143‐244
319143‐048
EM279
EM261
EM262
EM273
EM167
Multicommunicationwire
Leftcommunicationwire
Rightcommunicationwire
Remotecontrollerterminal
WireCramp
Burnerassembly
Item#
Part#
Description
910
models
T‐M50
models
001
002
003
004
005
319143‐265
319143‐012
319143‐325
319143‐026
319143‐237
EM305
EM335
EW001
EW002
EM264
Caseassembly

Brackets 
ScrewM4x10(W/Washer) 
S crewM4x10(Coated)
Backguardpanel 
006
007
008
009
010
319143‐277
319143‐014
319143‐230
319143‐334
319143‐236
EM333
EKJ64
EM255
EX00B
EM263
Powersupplycodeassembly
Junctionbox
Chamberfixingplate
Rubberbush
Exhaustfixingplate
Item#
Part#
Description
910
models
T‐M50
models
126
127
128
129
130
319143‐090
319143‐261
319143‐276
319143‐206
319143‐238
EW00L
EM300
EM331
EKK3G
EM266
PanscrewM4x6(W/Washer)
Exhaustconnector
Exhaustcombiningbox
Siliconring
ExhaustgasketA
131
132
133
134
135
319143‐239
319143‐249
319143‐275
319143‐260
319143‐258
EM267
EM282
EM330
EM299
EM294
ExhaustgasketB
Casebeam
Exhaustauxiliaryplate
Duct
Ductcover
136
137
138
139
140
319143‐240
319143‐060
319143‐147
319143‐330
319143‐252
EM268
EW003
EK270
EW00B
EM286
Ductgasket
ScrewM4x10
Fandamper
ScrewM3x6
Freezeprotectionthermostat
709
416705
707 706
708
704 418 703
715 701
719
113
708
702
710 712
713
711
714
113
711
113 113 716
416705
707 706
708
704 418 703
709
715 701
719
113
720
721 714
113
113
717
722
723
Item#
Part#
Description
910
models
T‐M50
models
101
102
103
104
105
319143‐308
319143‐052
319143‐035
319143‐037
319143‐192
EM445
EKN74
EKK0E
EKK0F
EKK1P
Burnerassembly
Igniter
Flamerod
Igniterrod
Damper
106
107
108
109
110
319143‐038
319143‐033
319143‐034
319143‐036
319143‐032
EKN61
EKK2V
EKK2W
EKK32
EKK0G
Rodcap
Burnerwindow
Burnerholdergasket
Rodholder
Burnerholdergasket
111
112
113
114



115
319143‐039
319143‐059
319143‐060
319143‐263

319143‐264

319143‐044
EKK2M
EW00D
EW003
EM302

EM303

EKK2Y
Highvoltageignitecable
PanscrewM4
x8
ScrewM4x10
Manifoldassemblywith
gasvalveassemblyLP
Manifoldassemblywith
gasvalveassemblyNA
ManifoldgasketA
116
117
118
119
120
319143‐045
319143‐051
319143‐337
319143‐062
319143‐057
EKK2K
EKK1B
EX00J
EW006
EK042
ManifoldgasketB
Igniterplate
Gasconnectionplate
PanscrewM4x10
O‐ringP20NBR(Black)
121
122
123
124
125
319143‐257
319143‐253
319143‐350
319143‐250
319143‐063
EM293
EM289
EZP18
EM284
EW005
Gaspipeleft
Gaspiperight
O‐ringP18NBR(Black)
Gasinlet
HexheadscrewM4x8
CombustionandExhaustassembly

Item#
Part#
Description
910
models
T‐M50
models
716
717
718
719
720
319143‐241
319143‐242
319143‐127
319143‐343
319143‐227
EM269
EM270
EM296
EX013
EM207
LeftPCBfixingplate
RightPCBfixingplate
Transformer
ScrewM4x12
Groundfaultcircuitinterrupter
721
722
723
319143‐331
319143‐284
319143‐215
EW00X
EM385
EKK4U
ScrewM3x12
Surgebox
Surgeconnectingwire
Item#
Part#
Description
910
models
T‐M50
models
401

402
403
404
405
319143‐268

319143‐149
319143‐095
319143‐087
319143‐096
EM308

EK333
EKN34
EW00A
EKK2T
Heatexchangerassembly
for910(T‐M50)
Overheatcut‐off‐fuse
Hi‐Limitswitch
ScrewM3X6
Outputthermistor
406
407
408
409
319143‐097
319143‐082
319143‐224
319143‐088
EKH30
EZM04
EKN86
EKK27
Fastener“14‐11”
O‐ringP4FKM
Pipeheater122
Heaterfixingplate
411
412
413
414
415
319143‐083
319143‐061
319143‐229
319143‐042
319143‐344
EZM16
EW00H
EM252
EKK2D
EX019
O‐ringP16FKM
PanscrewM4x12(W/Washer )
Fanmotorfixingplate
Pressureport
Urethanetube
910(T‐M50)
910ASME(T‐M50ASME)
Item#
Part#
Description
910
models
T‐M50
models
011
012
013
319143‐262
319143‐246
319143‐025
EM301
EM278
EW000
Frontcoverfor910(T‐M50)
Airblockageplate
ScrewM4x12(W/Washer)
3
7
6
13
3
11
4
10
1
12
3
3
3
4
2
4
2
3
5
9
8
4
718
T-M50 ASME
444
445
446
446
447
910ASME
(T‐M50ASME)