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Can't adjust Navien Boiler supply water temperature

Garyholiday
Garyholiday Member Posts: 3
in Gas Heating
I have a Navien Boiler model NCB-240E. I for some reason can not adjust the supply water temperature, only the return water temperature.

When hitting mode and it flashes, it only allows me to adjust up to 149 and the R symbol is lit.

How do I get it so I can adjust the supply temperature?

Comments

  • Ironman
    Ironman Member Posts: 7,547
    Is is the outdoor sensor connected?
    Bob Boan
    You can choose to do what you want, but you cannot choose the consequences.
  • Garyholiday
    Garyholiday Member Posts: 3
    @Ironman I have the outdoor setting turned off. So I should be able to adjust the temperature manually. I also checked the parameters and it says I can adjust the supply temp to 180. However, on the default home screen it always displays the R with arrow symbol. Never the S with arrow symbol.
  • Ironman
    Ironman Member Posts: 7,547
    Is dip switch 2, #1 switch set to “OFF”?
    Bob Boan
    You can choose to do what you want, but you cannot choose the consequences.
    Garyholiday
  • Garyholiday
    Garyholiday Member Posts: 3
    @Ironman
    That was the issue thanks! They should update their user manual to specify that you need to flip the dip switch to change from return to supply.
    Ironman

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