Navien NPE-180A Service Manual page 15

Npe series condensing water heaters
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Exhaust Duct
Exhaust Limit Temperature Sensor
Intake Air Duct
Exhaust Body
Fan Motor
Ignition Transformer
Burner
Dual Venturi
Primary Heat Exchanger
High Limit Switch
Gas Pipe
Secondary Heat Exchanger
APS (Air Pressure Sensor)
Freeze Protection Switch
Front Panel
Condensate Trap
Gas Valve
PCB Box
Flow Sensor
Water Adjustment Valve
Mixing Valve
Gas Inlet Fitting
Water Inlet Filter
Power Switch
DHW Supply Fitting
Condensate Drain Fitting
Condensate Drain Lid
[NPE-180S/ 210S/ 240S]
* Refer to components Diagram and Part List in page 133.
14
NPE Service Manual
Version 2.21

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Npe-210aNpe-180sNpe-210sNpe-240sNpe-240aNpe-150s

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