Service Handbook

Condensing Models: On-Demand Water Heater Service Handbook • 73
COMPONENTS
Table 10: Component Descriptions and Part Numbers
Item Number Description
Part Number
140 Model T-H3M Model
402
Flow Sensor/
Control Valve
319143-463 EK129
403 Condensate drain port 319143-018 EKH23
404 Water inlet 319143-193 EKK1U
405 Inlet drain plug 319143-197 EKK2B
406 Inlet water filter 319143-198 EKK2C
407 Inlet thermistor 319143-214 EKK4J
408 Outlet thermistor 319143-529 EK207
409 Water outlet 319143-466 EK104
410 Outlet drain plug 319143-199 EKK2E
411 High Limit switch 319143-228 EM212
412 Overheat-cut-off fuse 319143-067 EX02A
413 Pipe heater 320273-364 EK468
414 Inlet heater 320273-365 EK469
415 Drain tube 320273-366 EK470
416 Inlet heater 319143-468 EK105
417
Secondary heat
exchanger for Indoor
model
320273-553 EK471
Secondary heat
exchanger for Outdoor
model
320273-554 EK472
418
Secondary heat
exchanger heater
320273-367 EK473
419 Heater fixing plate N/A EK474
450 Pipe heater fixing plate N/A EK475
451 Heater fixing plate 16 319143-125 EK031
452 Fuse fixing plate N/A EK476
453 O-ring P4 FKM 319143-082 EZF04
454 O-ring P6 FKM 319143-080 EZF06
455 O-ring P14 FKM 319143-100 EZF14
456 O-ring P15 FKM 319143-091 EZF15
457 O-ring P16 FKM 319143-083 EZF16
458 Fastener “14-22” 319143-105 EKK24
459 Fastener “16A” 319143-226 EM192
460 Fastener “16-25A” 319143-205 EKK39
COMPONENT ITEM NUMBERS