Navien NPE-240A Service Manual

Version 2.21
104 NPE Service Manual
Emergency measures for a blocked water adjustment valve * (refer to page 47 for Component Test
mode information)
1. Switch off power, shut off water supply to the unit, and drain water from the unit.
2. Remove the top/bottom clips of the water adjustment valve.
3. Disassemble the motor and open the lid.
4. Turn the water adjustment valve axis disk counterclockwise until it does not turn anymore.
5. Pull out the water adjustment valve power connector.
6. Reconnect power and start the unit while using hot water.
Turn the gear clockwise to open the valve
manually
Closed Position Open Position

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