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Type: Posts; User: seraaco

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  1. Replies
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    779

    BDOLIN do you have any information about...

    BDOLIN do you have any information about proactive defrosts? I am interested in that
    thanks
  2. Replies
    3
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    684

    Here is an article about this topic

    Here is an article about this topic
  3. Replies
    3
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    684

    hsk7461-80 bitzer compressors on a medium temp...

    hsk7461-80 bitzer compressors on a medium temp rack using 404A
  4. Replies
    3
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    684

    superheat using 404 screw comp?

    What is the lowest suction superheat allowed when using screw compressors on a med temp rack?

    I read 4 to 10 is normal due to efficiency.

    Thanks
  5. Replies
    7
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    666

    If it's wired in parallel with the compressor it...

    If it's wired in parallel with the compressor it will, if wired to a board or diferent circuit it could cycle.
  6. Replies
    0
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    322

    HSK7461-80 BITZER SCREW

    Hi fellas

    does anyone have a pdf incluiding the economizer operation on this compressor ? thanks a lot
  7. Replies
    9
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    1,042

    The reason for a temp bulb installed in the air...

    The reason for a temp bulb installed in the air discharge is to prevent iced up coils when a lot of air infiltration is present such as open cases, prep rooms and heavy traffic w/i boxes.
  8. Replies
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    2,861

    Split the system n put nitro on every section, if...

    Split the system n put nitro on every section, if the leak is not too obvious leave all sections with nitro and comeback in the morning
    you'll see which one has lost pressure and can start looking...
  9. Thread: R 507

    by seraaco
    Replies
    24
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    2,008

    R507 is : HFC-125 50% wt ...

    R507 is : HFC-125 50% wt
    HFC-143a 50% wt
    azeotropic blend


    R404A is: HFC-125 44% wt
    HFC-143a 52% wt
    HFC-134a 4% wt
    zeotropic...
  10. Thread: R 507

    by seraaco
    Replies
    24
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    2,008

    like JP said interesting info but of course if...

    like JP said interesting info but of course if someone wraps a whole teflon tape roll around a fitting could be possible that the nut will expand
    also i have never seen a perfect threaded...
  11. Thread: R 507

    by seraaco
    Replies
    24
    Views
    2,008

    doctor that's what i know up to now teflon is a...

    doctor that's what i know up to now
    teflon is a refrigerant friendly material
    that information will be helpfull
    thanks a lot
  12. Thread: R 507

    by seraaco
    Replies
    24
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    2,008

    great reply guys thanks a lot but still the same...

    great reply guys thanks a lot but still the same i haven't found any information about R507 being not teflon friendly
  13. Thread: R 507

    by seraaco
    Replies
    24
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    2,008

    it's a new store new equipment so i know that...

    it's a new store
    new equipment
    so i know that some materials will react to poe oil but i'm talking about new equipment
    i haven't heard before that R-507 will shrink or degrade teflon tape...
  14. Thread: R 507

    by seraaco
    Replies
    24
    Views
    2,008

    R 507

    have anyone heard about this????
    I was just told that R507 is a solvent and will destroy teflon tape, so leaks will show up; it's a new store n after a month from start up a small leak found.
    I ask...
  15. Are you talking about hot gas defrost systems????

    Are you talking about hot gas defrost systems????
  16. Replies
    13
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    926

    turn it off that way you'll reach that suction...

    turn it off that way you'll reach that suction pression LOL
  17. Replies
    9
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    1,128

    i hear you sometimes they are just reading what...

    i hear you
    sometimes they are just reading what you are listening
    so it's our job to figure it out
  18. Replies
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    1,128

    when the supco guy said to switch the wires, i...

    when the supco guy said to switch the wires, i think i ment at the main power supply., that way you will have power at common terminal all the time
  19. Thread: E2 problem

    by seraaco
    Replies
    14
    Views
    1,027

    yes it has a bad input it keeps reading a...

    yes it has a bad input
    it keeps reading a sensor even when nothing is connected to the piont on one board, the connector removed n still reading a temperature, i will try to unplug the bad board n...
  20. Thread: E2 problem

    by seraaco
    Replies
    14
    Views
    1,027

    we already clear and reset the controler and...

    we already clear and reset the controler and reload the program again but still doing the same sh.t
    it looks like a bad controller to me
    thanks
  21. Thread: E2 problem

    by seraaco
    Replies
    14
    Views
    1,027

    we called them today and download a new firmware...

    we called them today and download a new firmware but this problem persists
    all wiring is ok everything works fine untill you want to change a setpoint
    and yes this is E2 but not an einstein is a...
  22. Thread: E2 problem

    by seraaco
    Replies
    14
    Views
    1,027

    E2 problem

    Hi all
    if i try to change anything on any system, the controler will loose all inputs n output settings for that system
    if i just want to change the temp or a defrost i can't even read the...
  23. Replies
    5
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    501

    is the condenser clean? cond fan run n blades...

    is the condenser clean?
    cond fan run n blades ok?
    subcooling?
    txv ok?
    superheat?
  24. Replies
    5
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    562

    water acts as a mirror and reflects the sun to...

    water acts as a mirror and reflects the sun to the building adding an extra heat load
    same thing happenned in Puerto Vallarta they didnīt add this load when estimating loads and equipment was too...
  25. Replies
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    1,383

    dd98724 I can see you were made in china :p :D...

    dd98724 I can see you were made in china :p :D :confused: :eek: :mad:
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