Navien NHB H Series Installation And Operation Manual page 45

3.6.11 Wiring Diagram - Optional Supply/Return Temperature Sensors
To control the boiler supply or return water temperature using the external temperature sensors,
Note
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configure the system accordingly.
On the front panel, press the Menu button (
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Space Htg Operation > 6. SH Control Method to select one of the control modes.
Use only the Navien Universal Temperature sensor (#GXXX001769). The use of other sensors may
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result in higher water temperatures than expected.
<NHB-H>
Temperature sensor
Cable tie
Thermal insulation
) to enter the setting menu, and then select 2.
Installing the System Piping 45