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Thread: TXV valve

  1. #1
    Join Date
    Jun 2011
    Location
    Blue grass KY.
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    17

    TXV valve

    I work for a hvac company. I just started running around on services calls I wanted to know if anyone have been having problems with new units with the txv valves? We are having lot of problems with new units.
    Secondly. How is the best way to diagnose it? hour service technician sometimes not sure if its the reversing valve or the txv how is the proper way to trouble shoot it.
    3rd. If you over heat the bulb while welding the copper on a new unit would that effect the txv valve later.
    Thanks for any info.

  2. #2
    Join Date
    Aug 2003
    Location
    Fort Worth, TX
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    11,371
    Quote Originally Posted by captain71 View Post
    If you over heat the bulb while welding the copper on a new unit would that effect the txv valve later.
    Yes, it can. Same if you overheat the valve itself while brazing it in.
    • Electricity makes refrigeration happen.
    • Refrigeration makes the HVAC psychrometric process happen.
    • HVAC pyschrometrics is what makes indoor human comfort happen...IF the ducts AND the building envelope cooperate.


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  3. #3
    Join Date
    Dec 2002
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    SouthEast NC ICW & Piedmont Foothills
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    7,635
    Quote Originally Posted by captain71 View Post
    I work for a hvac company. I just started running around on services calls I wanted to know if anyone have been having problems with new units with the txv valves? We are having lot of problems with new units.
    Secondly. How is the best way to diagnose it? hour service technician sometimes not sure if its the reversing valve or the txv how is the proper way to trouble shoot it.
    3rd. If you over heat the bulb while welding the copper on a new unit would that effect the txv valve later.
    Thanks for any info.
    if you read the rules, you know that #2 will not be answered
    It`s better to be silent and thought the fool; than speak and remove all doubt.

  4. #4
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    That means getting your post count up and applying for Pro membership, so you can ask in the Pro section.
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  5. #5
    Join Date
    Jun 2011
    Location
    Blue grass KY.
    Posts
    17

    Thumbs up

    Quote Originally Posted by dandyme View Post
    if you read the rules, you know that #2 will not be answered
    Gotcha

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