Where to cut? - Name this part!

Discussion in 'Water Heaters and Softeners' started by PA16v, Feb 19, 2018.

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  1. Feb 19, 2018 #1

    PA16v

    PA16v

    PA16v

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    Hello knowledgeable people.

    I am replacing my 60-gallon electric water heater, and I have this unknown elbow part on the cold water intake piping. It is most likely 15 years old, like my water heater.

    What it is?

    Do I cut on the A line and replace it with a new one?

    Do I cut on the A line and not replace it?

    Do I cut on the B line and keep it?


    Thanks for your advice.

    20180219_092047.jpg
     
  2. Feb 20, 2018 #2

    Geofd

    Geofd

    Geofd

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    are you pointing to "a" to the left of the valve is a tee on the run
    is a female thread and whats threaded into it is a vaccum
    breaker that fitting(vaccum breaker) is important and should
    be changed with each new heater the cold water looks like its being
    fed into the bottom of the tank?????cant see,what ever change
    In pipi g you do that vaccum breaker must be there

    Ohio..... That's weird we never install expansion tanks in residential
    always in commercial/vaccum breaker still a must there to

    Yes to your question
     
    Last edited: Feb 23, 2018
  3. Feb 21, 2018 #3

    PA16v

    PA16v

    PA16v

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    Indeed, old one was bottom fed. New one is top fed.

    So would my install diagram work with a vacuum breaker and an expansion tank?

    heater.jpg
     
  4. Feb 21, 2018 #4

    TomFOhio

    TomFOhio

    TomFOhio

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    I never put vacuum breakers in a water heater for residential but the expansion tank is a must now a days. The only time we put vacuum breakers in was on commercial tanks as this is code around here. But on your drawing that will work just fine the way you have it.
     

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