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Thermostats

jap
jap Member Posts: 1
in Thermostats and Controls

I have a navien nhb-110h recently installed, how do I enable a second thermostat ? I can “view “ that zone 1 is off, but can’t find where to turn “on”

Comments

  • neilc
    neilc Member Posts: 2,830

    pictures of the thermostat, and or whatever you're talking about,

    more info

    known to beat dead horses
  • EdTheHeaterMan
    EdTheHeaterMan Member Posts: 9,255

    looking at the Navien nhb-110h manual @jap, there is no mention of a zone control on the internal wiring connections of the Navien nhb-110h boiler itself. When zone valves and zone pumps are mentioned, there is a reference to a generic zone valve control panel. I might think of the Taco ZVC 405 or other similar devices form Caleffi, Honeywell, or Erie to name a few. If you have such a control can you also take a photo of that panel box with the cover off so we can see how the wires are connected?

    Zone thermostats can operate valves, or circulator pumps, so pictures of the connecting pipes to the Navien nhb-110h boiler from far enough back to see the boiler from ceiling to floor and a couple of feet in either direction would be helpful.

    Edward Young Retired

    After you make that expensive repair and you still have the same problem, What will you check next?

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