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  1. #27
    Join Date
    Jan 2017
    Location
    San Diego
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    Quote Originally Posted by BNME8EZ View Post
    It is my understanding that any safety switch by law can not have a valve in line to isolate it from the system, thus no core in the schrader fitting. Having said that I have seen cores in on some systems.
    Whose law?

    Sent from my LG-TP450 using Tapatalk

  2. #28
    Join Date
    Nov 2006
    Location
    Southeastern Pa
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    32,126
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    I believe that law would be the International Mechanical Code.
    [Avatar photo from a Florida training accident. Everyone walked away.]
    2 Tim 3:16-17

    RSES CMS, HVAC Electrical Specialist
    Member, IAEI

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  3. Likes Raehvac, VTP99 liked this post.
  4. #29
    Join Date
    Jun 2006
    Posts
    678
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    I just assume there is no Schrader. You never lose that way.

  5. #30
    Join Date
    Mar 2018
    Location
    Montreal, Canada
    Posts
    47
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    For me it's absolutely a no-go to jump any kind of safety switch. That's how bad habits develop.
    Keep pressure switches and access Ts on the truck; They take no space at all.

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