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eg 45 weil mclain boiler

polish_flash2000
polish_flash2000 Member Posts: 2
in Gas Heating
eg 45 weil mclain boiler  - what is a proper voltage between Y & G terminal? 

Comments

  • HVACNUT
    HVACNUT Member Posts: 7,067
    Can you post a pic of the wiring diagram?
  • ChrisJ
    ChrisJ Member Posts: 16,958
    polish_flash2000 said:

    eg 45 weil mclain boiler  - what is a proper voltage between Y & G terminal? 


    Going 100% by memory here,
    But I think that's the connections across the thermostat? If so I'd expect it should be zero when the thermostat is calling for heat and 24V+- when it's not.

    Single pipe 392sqft system with an EG-40 rated for 325sqft and it's silent and balanced at all times.

  • realliveplumber
    realliveplumber Member Posts: 354
    Looks like y and g are at the vent damper
  • realliveplumber
    realliveplumber Member Posts: 354

  • ChrisJ
    ChrisJ Member Posts: 16,958
    I guess it depends on the age of the boiler.

    I just went down and took this picture of the diagram on my 2011 EG series.



    Single pipe 392sqft system with an EG-40 rated for 325sqft and it's silent and balanced at all times.

  • polish_flash2000
    polish_flash2000 Member Posts: 2
    Thank you for all help.

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