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  1. #1
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    Ultra Low temp too slow....



    Hi,

    I have recently been thrown into the cascade arena, and I am learning quickly. I have a problem with a Espec Thermal Shock Chamber.

    The unit pulls down to -75, but takes a little to long, about an hour.. When I set the machine to cycle between -65 and 160, It cant keep up. It wont reach temp quick enough to allow any soak time. The charges have all been triple verified, so I am at a loss. Any suggestions?

    Thx



  2. #2
    Join Date
    Feb 2007
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    UK
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    Re: Ultra Low temp too slow....

    Well to give us a chance, running data could be useful...

    1st stage suction pressure/discharge pressure/subcooling/superheat?
    2nd stage suction pressure/discharge pressure/subcooling/superheat?

    Ambient temp?


  3. #3
    Brian_UK's Avatar
    Brian_UK is offline Moderator I am starting to push the Mods: of RE Site Moderator : and general nice guy
    Join Date
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    Re: Ultra Low temp too slow....

    How long did the unit take to pull down originally? Unless you know that you may find that the client is getting you to chase your tail.
    Brian - Newton Abbot, Devon, UK
    Retired March 2015

  4. #4
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    Re: Ultra Low temp too slow....

    these units take a long time to reach / stabilize tempreture and they run humidity to?? only one comp,viking?,,
    look at specs, customer may be asking to much ,,haha

  5. #5
    Join Date
    Apr 2006
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    Not so sunny coast (BC Canada)
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    Re: Ultra Low temp too slow....

    Ya the colder you go the longer it takes, or the gear becomes really big! So less it is pulling more power then a third world nation I'd bank on an hour or more for pull down.
    Now in Redvers Sask.

  6. #6
    Brian_UK's Avatar
    Brian_UK is offline Moderator I am starting to push the Mods: of RE Site Moderator : and general nice guy
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    Re: Ultra Low temp too slow....

    OP seems to have disappeared.
    Brian - Newton Abbot, Devon, UK
    Retired March 2015

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