Installation Instructions

49
Item # Descrip
116
Part #
117
118
EKK2D
EX019
EK117
119
121
Pressure port
Combus chamber tube
Gas inlet
EX00D
EK163
150
151
Gas inlet ring
Surge box plate
EZP18
EK042
401
O-ring P18 NBR (Black)
O-ring P20 NBR (Black)
EK250
402
403
404
405
Primary heat exchanger
EK129
EKD58
EKK1U
EKK2B
407 EK137
408
Inlet thermistor
EKK1A
409
410
411
Outlet thermistor
Flow adjustment valve / Flow sensor
Bypass valve
Water inlet
Inlet drain plug
EK208
EKK2E
EKK2T
412 EKN34
413
414
Hi-Limit switch
Water outlet
Outlet drain plug
Heat exchanger thermistor
EK333
EK209
415 EK210
416
Overheat-cut-off fuse
Pipe heater
417
Inlet heater
Drain tube EK231
EK105
418
Inlet heater
EK251
450
451
452
453
Secondary heat exchanger
EKK27
EK031
EKK26
EK029
454
455
456
457
O-ring P4 FKM
O-ring P6 FKM
O-ring P14 FKM
EZM04
O-ring P15 FKM
EZM06
EZM14
EZM15
458
459
460
461
Pipe heater fixing plate
Heater fixing plate 16
Fuse fixing plate 18
Fuse fixing plate 14
EZM16
EKH30
EKK24
EM192
O-ring P16 FKM
Fastener “4-11”
Fastener “14-22”
Fastener “16A”