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Navien NR Series User Manual

Navien NR Series
108 pages
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Table of Contents

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Navien NR Series Specifications

General IconGeneral
TypeTankless
Fuel TypeNatural Gas or Propane
Ignition SystemElectronic
Hot Start TechnologyYes
Installation TypeWall-mounted
Heat Input199, 000 BTU/h (Natural Gas), 199, 000 BTU/h (Propane)
Control TypeDigital
RecirculationExternal recirculation ready
Temperature Range98°F - 140°F
Warranty15 years heat exchanger, 5 years parts

Summary

Specifications

Interior View & List of Main Components

Schematic & Water Flow Diagram

Replaceable Major Components

PCB Board Check Points for Diagnosis

Error Code & Troubleshooting

Error Code 001E

Details troubleshooting for Error Code 001E related to boiling inside the heat exchanger.

Error Code 003E

Provides troubleshooting steps for Error Code 003E, typically related to ignition failure.

Error Code 004E

Outlines troubleshooting for Error Code 004E, related to false flame detection.

Error Code 007E/008E (Outlet Thermistor)

Covers troubleshooting for Error Codes 007E (open) and 008E (short) for outlet thermistor issues.

Error Code 009E

Details troubleshooting for Error Code 009E, related to abnormal fan motor RPM.

Error Code 010E

Provides troubleshooting for Error Code 010E, related to air pressure sensor issues.

Error Code 012E

Outlines troubleshooting for Error Code 012E, related to flame loss.

Error Code 021E/022E (Cold water inlet thermostat)

Covers troubleshooting for Error Codes 021E (open) and 022E (short) for cold water inlet thermostat.

Error Code 016E/030E (High limit error)

Details troubleshooting for Error Codes 016E (high limit) and 030E (exhaust high limit).

Error Code 027E

Provides troubleshooting for Error Code 027E, related to abnormal air pressure sensor.

Error Code 034E (Cascade system)

Outlines troubleshooting for Error Code 034E, specific to cascade systems.

Error Code 035E

Details troubleshooting for Error Code 035E, related to abnormal gas pressure sensor.

Error Code 037E (Leak Detect)

Covers troubleshooting for Error Code 037E, related to water leakage detection.

Error Code 038E (Abnormal Circulation Pump)

Provides troubleshooting for Error Code 038E, related to abnormal circulation pump operation.

Error Code 039E (LPG model)

Outlines troubleshooting for Error Code 039E, specific to LPG models.

Error Code 046E (LPG gas pressure)

Details troubleshooting for Error Code 046E, related to LPG gas pressure.

Error Code 015E

Covers troubleshooting for Error Code 015E, related to communication failure with PCB.

Error Code 036E (Cascade system)

Provides troubleshooting for Error Code 036E, specific to cascade systems.

Error Code 041E/042E (Outlet Thermistor)

Details troubleshooting for Error Codes 041E (open) and 042E (short) for outlet thermistor.

Error Code 043E (Cascade connection)

Outlines troubleshooting for Error Code 043E, related to abnormal cascade connection.

Error Code 044E (Thermostats connections)

Covers troubleshooting for Error Code 044E, related to abnormal thermostat connections.

Disassemble, Replace and Repair

Measuring Gas Pressure Setting

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