Install Instructions
PartsList
49│Page
Item# Description
Part#
520and320
models
T‐H2andT‐
H2Smodels
442
443
444
445
446
Hi‐limitswitchforexhaust
Fastener“14‐22”
Thermistorfixingplate
Secondaryheatexchangerplate
Secondaryheatexchanger
319143‐104
319143‐105
319143‐106
319143‐107
319143‐108
EKH6G
EKK24
EX13H
EKH5N
EKH6X
447
448
449
450
451
Drainpipe
Secondaryheatexchangerinletpipe
Exhaustthermistorgasket
Fastener“6‐15”
BandB
319143‐109
319143‐110
319143‐111
319143‐112
319143‐113
EKH66
EKH78
EX13L
EX12K
EKH1Y
452
453
454
455
456
Header
Flatheater
3arrayhe ater
O‐ringP12FKM
HeatexchangerassemblyforOutdoormodels
319143‐114
319143‐115
319143‐116
319143‐117
319143‐118
EX13B
EX13P
EX13R
EZM12
EKH63
457
458
459
460
461
O‐ringP3EPDM
Secondaryheatexchangerdrainplug
Exhaustport
Exhaustchamberassembly
Secondaryheatexchangerplate
319143‐119
319143‐120
319143‐121
319143‐122
319143‐123
EZM03
EX13A
EX13J
EKH65
EKH62
462
463
Heaterfixingplate20
Heaterfixingplate16
319143‐124
319143‐125
EKH38
EK031
701
702
703
704
705
Computerboardfor520(T‐H2)models
for320(T‐H2S)models
Transformer
Junctionboxinnerplate
FreezeprotectionandEH‐IGwireforDirectVentIndoormodels
Gasvalvewire
319143‐126
319143‐196
319143‐127
319143‐128
319143‐129
319143‐130
EKH4E
EKH7W
EM296
EKJ66
EKH79
EKH6V
706
707
708
709
710
Exhaustthermistorassembly
Thermistorswire
Proportionalgasvalvewire
Multi‐cable(Only520(T‐H2)models)
Flamerodwire
319143‐131
319143‐132
319143‐133
319143‐134
319143‐135
EKH6E
EKH6J
EKK12
EKH6F
EKH69
711
712
713
714
715
Switchwire
PCBfixingplate
AC120Vwire
AC120VTransformerconne ctingwire
Surge box
319143‐136
319143‐137
319143‐138
319143‐139
319143‐140
EKH6D
EKH71
EKK3C
EKH6C
EKH67
716
717
718
719
720
AC120VpowerON‐OFFswitch
PCBcover
Nylonclamp
FreezeprotectionandEH‐IGwireforOutdoormodels
Exhaustfanmotorwire
319143‐141
319143‐142
319143‐143
319143‐144
319143‐145
EKK4V
EKH68
EC00X
EKH7A
EKH6A
721 Exhaustthermistorwire 319143‐415 EKH6B