Results 1 to 3 of 3

Thread: 407c??

  1. #1
    Join Date
    Apr 2017
    Posts
    6
    Post Likes

    407c??

    Green tech guy.
    Supply company telling me you can add this on top of r-22, but most techs say it's a retrofit, any suggestions?


    Sent from my iPhone using Tapatalk

  2. #2
    Join Date
    Apr 2005
    Location
    Australia : Queensland
    Posts
    1,678
    Post Likes
    Can be added with no TXV adjustment.

    Here is another post that looks into this further.

    http://hvac-talk.com/vbb/showthread....g-407C-and-R22
    The primary function of the design engineer is to make things difficult for the fabricator and impossible for the serviceman.

  3. Likes Jettinvr6sc, weezer81 liked this post
  4. #3
    Join Date
    Nov 2006
    Location
    Athens, Ohio
    Posts
    5,795
    Post Likes
    Positively not! You seem to be saying that you will mix the refrigerants.
    The old refrigerant must be recovered and replaced with the new refrigerant.
    AOP Rules: Rules For Equipment Owners.

    Free online load calculator: http://www.loadcalc.net/


    There = not here. Their = possessive pronoun. They're = they are
    It's = contraction of it is. Its = the possessive form of it
    Too = also. To = expressing motion. Two = 2
    Then = after that, next. Than = indicates a comparison.
    Questions should end with a question mark "?" Statements end with a period "."

  5. Likes Gunslinger, weezer81 liked this post

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Related Forums

Plumbing Talks | Contractor MagazineThe place where Electrical professionals meet.