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  1. #1
    Join Date
    Sep 2008
    Location
    Western PA
    Posts
    25,575

    What is wrong here???

    Worked on this one recently.

    Very unusual problem, and thanks to those here who helped me to solve it.
    Attached Images Attached Images  

  2. #2
    Join Date
    Mar 2007
    Location
    pittsburgh, pa
    Posts
    536
    TXV sensing bulb in wrong spot? I install them downstream from equalizer line.

  3. #3
    Join Date
    Sep 2008
    Location
    Western PA
    Posts
    25,575

  4. #4
    Join Date
    Feb 2004
    Location
    Hampstead/NH
    Posts
    178
    Wrong distributor for hot gas defrost, was flowing through the orifice screwing up your defrost?

  5. #5
    Join Date
    Mar 2007
    Location
    pittsburgh, pa
    Posts
    536
    Is that hot gas line piped in correctly? (sporland 20-10 shows special distributors for hot gas). I'll sit back and wait for the education.

  6. #6
    Join Date
    Sep 2008
    Location
    Western PA
    Posts
    25,575
    Quote Originally Posted by nesc522 View Post
    Wrong distributor for hot gas defrost, was flowing through the orifice screwing up your defrost?
    Damn.

    You're GOOD.

    Took me 4 service visits and 2 phone-a-friends to find it.

    Cases were originally hot gas defrost. Were converted to electric and then converted back to gas.

    For whatever reason, the person doing the first conversion, from gas to electric, decided to replace the distributors with electric ones.

    We did a rack conversion in the store and the ice ups started a few months later.

  7. #7
    Join Date
    Jul 2000
    Location
    Guayaquil EC
    Posts
    10,331
    Quote Originally Posted by jpsmith1cm View Post
    Damn.

    You're GOOD.

    Took me 4 service visits and 2 phone-a-friends to find it.

    Cases were originally hot gas defrost. Were converted to electric and then converted back to gas.

    For whatever reason, the person doing the first conversion, from gas to electric, decided to replace the distributors with electric ones.

    We did a rack conversion in the store and the ice ups started a few months later.
    Great lesson there, JP.

    So did you replace the distributor or just add an Auxiliary Side Connector? (assuming this was a Sporlan distributor)

    See p.20: http://www.sporlanonline.com/20-10_062009.pdf

  8. #8
    Join Date
    Sep 2008
    Location
    Western PA
    Posts
    25,575
    We replaced a total of 7 distributors (out of 9 cases).

    Also, wound up replacing 18 front pan heaters because somebody couldn't tell the difference between a 208v and a 120v pan heater.


    This remodel job wound up being a DISASTER!

  9. #9
    Join Date
    Jul 2000
    Location
    Guayaquil EC
    Posts
    10,331
    Quote Originally Posted by jpsmith1cm View Post
    We replaced a total of 7 distributors (out of 9 cases).

    Also, wound up replacing 18 front pan heaters because somebody couldn't tell the difference between a 208v and a 120v pan heater.


    This remodel job wound up being a DISASTER!


    Yup...As so often is the case, the Devil is in the details.

  10. #10
    Join Date
    Nov 2009
    Posts
    384
    I am dealing with the EXACT issue right now with a local independent. They hired the area low bid hacks to move and repipe the cases in a minor remodel. Went from electric to gas. The piping looks just like the picture you showed. In addition, the liquid line was not up sized for proper draining and the suction was not properly piped and bullheaded for reverse flow. Cases build ice and need thawed ever 2-4 months. Its a giant mess.
    Customer doesn't want to spend the money to correct it.
    "Don't wish it were easier, wish you were better"

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