Navien NPE-240A Service Manual

Version 2.21
58 NPE Service Manual
4.11 Key Components Description
4.11.1 PCB
Part Check Point
Function To control each component and also to check the overall performance of the unit.
Failure Event Malfunctioning PCB.
Effects
A component may not operate within the unit and could produce an error code. In most cases of PCB failure, the
whole unit will not operate until the problem is resolved.
Error Code E515, E615
Diagnostic Visual inspection: Connection and/or breakage of wires and/or burn marks on the PCB.
Color/Number
of wires
25 (see page 40)

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