74 • Condensing Models: On-Demand Water Heater Service Handbook
C
OMPONENTS
Table 10: Component Descriptions and Part Numbers
Item Number
Description
Part Number
140 Model
T-H3M Model
461
Flat heater
319143-535
EK217
462
Cold pipe for 140 model
320273-555
EK477
463
Header connection
320273-368
EK478
464
Thermistor fixing plate
319143-106
EX13H
465
Exhaust thermistor
gasket
319143-111
EX13L
466
High limit switch for
exhaust
319143-104
EKH6G
467
Gasket
319143-542
EK229
468
Inlet pipe packing
320273-558
EK479
701
Computer board
320273-369
EK480
702
Rubber grommet
319143-426
EX148
703
Surge box
320273-128
EK280
704
120 VAC wire for Indoor
model
319143-427
EK146
120 VAC wire for
Outdoor model
319143-546
EK143
705
120 VAC Power ON-OFF
switch
319143-141
EKK4V
706
Remote controller wire
for Indoor model
320273-376
EK481
Remote controller wire
for Outdoor model
319143-473
EK138
707
Gas valve wire
320273-379
EK482
708
Flame rod wire
320273-380
EK483
709
Igniter assembly
320273-381
EK484
710
Freeze protection
thermostat
319143-185
EKJ59
711
Proportional gas valve
wire
319143-481
EK112
712
Nylon clamp FC6
N/A
EX004
713
Computer board cover
319143-191
EKK1M
714
Cable clamp for Indoor
model
319143-500
EX13C
715
Exhaust thermistor for
Indoor model
319143-131
EKH6E
COMPONENT ITEM NUMBERS