Navien NPE-240A Service Manual

Product Information 13
2.2 Layout and Key Components
The following diagram shows the key components of the water heater. Component assembly diagrams and particular parts lists are included
in the Appendix.
Intake Air Duct
Exhaust Duct
Exhaust Limit Temperature Sensor
Exhaust Body
Ignition Transformer
Burner
Primary Heat Exchanger
Secondary Heat Exchanger
Flow Sensor
Condensate Trap
Front Panel
PCB Box
Water Adjustment Valve
Water Inlet Filter
Power Switch
Condensate Drain Fitting
Condensate Drain Lid
Fan Motor
Dual Venturi
Gas Pipe
High Limit Switch
APS (Air Pressure Sensor)
Buffer Tank
Circulation Pump
Gas Valve
Gas Inlet Fitting
DHW Supply Fitting
2-Way Valve
Recirculation Inlet Fitting
[NPE-180A/ 210A/ 240A]
* Refer to components Diagram and Part List in page 133.

Navien NPE-240A Specifications

General

Type	Tankless
Fuel Type	Natural Gas or Propane
Energy Factor	0.97
Energy Efficiency	97%
Voltage	120V
Ignition Type	Electronic
Maximum Input	199, 900 BTU/h
Water Connection Size	3/4"
Gas Connection Size	3/4"
Warranty	15-year on heat exchangers, 5-year on parts, 1-year on labor
Dimensions	17.3" W x 13.2" D x 27.4" H