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Noritz Operation panel menu settings and defaults

Updated · by Aurora Star Tech Inc.

Noritz Operation panel menu settings and defaults: reference table for the tankless water heater (Noritz EZ, Noritz NRCR series): a quick-reference table with notes.

Tankless Water HeaterControl settingsNoritz EZ · Noritz NRCR

Noritz Operation panel menu settings and defaults table

SettingOptionsDefault
Max Set Temperature (power off)100-140 F in 5 F steps; 37-48 C, 50-60 C120 F / 50 C
Recirc ON/OFFON / OFFOFF
Recirc ModeAlways OFF, Always ON, Manual Timer, Auto Learning (NRCR)Always OFF
Vacation ModeActive / InactiveInactive
Flow Meter Alarm10-60 gal (5 gal steps), 70-100 gal (10 gal steps), OFFAlarm OFF
Drain Water (power off)Start / CancelCancel
Scale Flushing (power off)Start / CancelCancel
Audible AlarmON / OFFON
Screen LockActive / Inactive (4-digit password)Inactive
Units (first 10 min after power-up, power off)[F/gal/ft] or [C/L/m][F/gal/ft]
Power Saving Dis. / BacklightON-OFF / Power Save ON-OFFON / Power Save ON
Brightness / Contrast / Touch SoundBright-Normal-Dim-Dark / -15 to +15 / ON-OFFNormal / Standard / ON

How to use the Noritz Operation panel menu settings and defaults table

Find your exact model in the first column and read across the row. Values in the Noritz Operation panel menu settings and defaults table are a summary for quick reference; the rating plate on the unit and the manufacturer's manual for your model always decide. If your model is not listed, or a value looks different from what you see on the unit, check the manual before changing anything.

Notes

  • Setting 125 F (55 C) or higher needs Max Set Temperature raised first; the panel warns about scald risk.
  • Default Settings resets everything in Settings except Screen Lock (hold OK about 5 s).
  • Forgot screen lock password: hold OK 5 s while 'Input Password' is shown.
  • Menu also has Maintenance Monitor, Sys. Maint. Monitor (multi-unit), Error History (last 8) and Heater Info.

Applies to: Noritz EZ111/EZ98/EZ71 and NRCR111/NRCR92

Safety: Gas, electrical and refrigerant work must be done by a licensed technician. Turn off power and gas before servicing, never bypass a safety control, and always follow the manufacturer's manual for your exact model.

Noritz models this applies to

Noritz EZ

EZ71DVEZ98DVEZ111DV

Noritz NRCR

NRCR92DVNRCR111DV

Noritz Tankless Water Heater error codes →

Source: Noritz EZ/NRCR Owner's Guide (Rev. 10-25), Configuring settings using the operation panel, p.15-20. Written in our own words as a summary; always check the original manual.

General guidance for qualified technicians. The manufacturer's installation and service manual and local codes always take priority. Aurora Star Tech is not affiliated with, endorsed by or sponsored by any equipment manufacturer; brand and model names are used only to identify equipment and belong to their owners.

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