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Need help identifying lines

manolid
manolid Member Posts: 3
in Radiant Heating
Trying to identify two lines that run off the manifold in what I believe to be a wet radiant system.

When the boiler is running the six lines that run upstairs are getting hot like I think they should be but the two lines running in to the basement floor are not. They are cold at all times. Checked the valves and they are open.

Are these two lines heating loops that are not working? Do they serve some other purpose?

Pics...

https://i.imgur.com/JQUfDRx.jpg
https://i.imgur.com/QoEzvuX.jpg

Any info will be appreciated.

Comments

  • STEVEusaPA
    STEVEusaPA Member Posts: 6,505
    edited December 2021
    Well if it is for radiant heating it will never get any flow without it's own circulator.
    If you close the valves to all the other zones, do you get flow?

    There was an error rendering this rich post.

  • manolid
    manolid Member Posts: 3
    I just tried turning off the other valves at the manifold. Still no flow, stays cold.
  • HVACNUT
    HVACNUT Member Posts: 6,215
    Can you post some pics?
    There's gotta be a way to purge each loop separately. 
  • manolid
    manolid Member Posts: 3
    All I see is the one purge valve below the manifold and what I believe is a drain valve to the left.

    Pics...






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