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Thread: Yoshimasa sushi display

  1. #21
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    Quote Originally Posted by R600a View Post
    Did the manufacturer specify the evaporator pressure setting? All I am seeing is that they say to adjust it.

    Sent from the Okie state usin Tapatalk
    I wouldn’t follow what that manufacturer says!

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  3. #22
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    Quote Originally Posted by pecmsg View Post
    I wouldn’t follow what that manufacturer says!
    Like the part that states do not use a thermo expansion valve 😃

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  5. #23
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    Quote Originally Posted by VTP99 View Post
    Like the part that states do not use a thermo expansion valve ��
    and NOT charging Liquid!

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  7. #24
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    Quote Originally Posted by pecmsg View Post
    and NOT charging Liquid!
    Did you catch the part that says the 3/4" line is the liquid and the 1/4" line suction ?

  8. #25
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    Quote Originally Posted by VTP99 View Post
    Did you catch the part that says the 3/4" line is the liquid and the 1/4" line suction ?
    missed that!

  9. #26
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    @smsmechanical

    Best I can offer is:
    Find out how much liquid the receiver and liquid line holds and charge that. Adjust the AXV for 20 - 40°F at the pump.

    Get paid and run!

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  11. #27
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    Quote Originally Posted by pecmsg View Post
    missed that!
    Allow me to assist you with that
    Attached Images Attached Images  

  12. #28
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    Ironically it contradicts it's diagram 🤣
    Does this chit surprise you in any way ?
    Attached Images Attached Images  

  13. #29
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    No one read that $hit anyway

  14. #30
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    Quote Originally Posted by pecmsg View Post
    No one read that $hit anyway
    Not if you have at the least half a brain 🤯

  15. #31
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    Quote Originally Posted by VTP99 View Post
    Not if you have at the least half a brainCELL ��
    Fixed!

  16. #32
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    .
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  17. #33
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    Thread Starter
    Compressor quit today as expected. Needs to replaced.

  18. #34
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    Only read the first few posts, will finish reading this thread after I post.

    You wait until the box is at temp, then adjust AEV to superheat (meaning cooling back to the compressor), need that cooling at the compressor. You adjust charge to have some subcooling. If condenser is a micro channel, only a few degrees of subcooling. If normal copper tubed condenser and/or receiver, charge to a clear sight glass.
    I do a triple evac with nitro to remove non condensables.

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  20. #35
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    Lost the compressor, sorry to hear that. Wish I got here sooner. This isn't rocket science.
    I do a triple evac with nitro to remove non condensables.

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  22. #36
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    Quote Originally Posted by BBeerme View Post
    Lost the compressor, sorry to hear that. Wish I got here sooner. This isn't rocket science.
    Don't worry he'll find it eventually.

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  24. #37
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    tt/rich Didnt like my post..........................


    Fluck em!

  25. #38
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    Not rocket science at all but..We tried to a clear glass. Charging to a clear sight glass left us overcharged as the instructions state. I’ve kicked this issue back to our office. They are going to review the design. As they purchased the condenser and the actual sushi cases from different companies.

  26. #39
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    Charging to a clear sight glass [when the box is at temp?], and then saying it is over charged, tells me you are not giving us all of the information.

    Seriously, been through this over and over through the years.

    Try under charging the system. Maybe 3*F subcooling out of the condenser. Once the case gets to temp, then dial it in.

    What does the manufacture say the suction pressure / saturation temp should be? Being a sushi case, I'm guessing there is a critical temp. In order to create a specific humidity in the case. I'm guessing raw fish wants a perfect humidity to stay fresh.

    Given the point above, that is how we dial in the system.


    Quote Originally Posted by smsmechanical View Post
    Not rocket science at all but..We tried to a clear glass. Charging to a clear sight glass left us overcharged as the instructions state. I’ve kicked this issue back to our office. They are going to review the design. As they purchased the condenser and the actual sushi cases from different companies.
    I do a triple evac with nitro to remove non condensables.

  27. #40
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    Thread Starter
    Pressures ended up at 30/125. Just what the manufacturer said they want.

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