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  1. #1
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    Need Flow charts & Design GPM for Trane PCV Centravac Chiller

    1) the Flow charts for both the evaporator & condenser for a Model PCV

    2) The required GPM for both the evaporator & Condenser on a PCV

    3)need detailed Unit Model Number Description for the Model PCV Centravac Chiller


    Thank you, Chet
    Life is too short not to enjoy life to the fullest - Don't be bogged down dealing with difficult people -who try to inflict their problems in life onto you or other good people...

    "Instead return the mutual respect to the good people who respect you - Forget about the one's who won't" .....what Chet lives by.....

  2. #2
    Join Date
    Sep 2008
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    Delaware
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    There are a lot of charts. What model are you looking for?

  3. #3
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    Model: PCV-4D C1D2


    Quote Originally Posted by Chiller Guy View Post
    There are a lot of charts. What model are you looking for?
    Life is too short not to enjoy life to the fullest - Don't be bogged down dealing with difficult people -who try to inflict their problems in life onto you or other good people...

    "Instead return the mutual respect to the good people who respect you - Forget about the one's who won't" .....what Chet lives by.....

  4. #4
    Join Date
    Sep 2008
    Location
    Delaware
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    Chet,
    I hope this is some help!

    PCV-4D-C1-D2 = Packaged CentraVac
    4= 400 Tons
    D = part of 100 tons (in this case I beleive it was 25 tons)
    C = Evap flow arrangement 1 designating 1 pass
    D = Cond flow arrangement 2 designating 2 pass
    I think the C & D are correct but can be corrected

    My catalog only showes a PCV-4F but this should be close:
    Min flow for a 1 pass evap is 1100 gpm
    Max flow for a 2 pass evap is 2422 gpm
    Cond flow is 411 min & 1505 max
    Dinner Calls

  5. #5
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    Chiller Guy

    this is good info - also need min max pressure drop recommended through condenser & evaporator

    Thanks again, Chet

    Quote Originally Posted by Chiller Guy View Post
    Chet,
    I hope this is some help!

    PCV-4D-C1-D2 = Packaged CentraVac
    4= 400 Tons
    D = part of 100 tons (in this case I beleive it was 25 tons)
    C = Evap flow arrangement 1 designating 1 pass
    D = Cond flow arrangement 2 designating 2 pass
    I think the C & D are correct but can be corrected

    My catalog only showes a PCV-4F but this should be close:
    Min flow for a 1 pass evap is 1100 gpm
    Max flow for a 2 pass evap is 2422 gpm
    Cond flow is 411 min & 1505 max
    Dinner Calls
    Life is too short not to enjoy life to the fullest - Don't be bogged down dealing with difficult people -who try to inflict their problems in life onto you or other good people...

    "Instead return the mutual respect to the good people who respect you - Forget about the one's who won't" .....what Chet lives by.....

  6. #6
    Join Date
    Sep 2008
    Location
    Delaware
    Posts
    243
    No recommended delta p. It will be a function of flow, but here are the numbers to work with.
    Delta p on cond at min flow = 2'
    at max flow = 21'

    Delta p on 1 pass evap at min flow = 3.5'
    at max flow = 15'


    P.S. My last post should show the Min/Max flows for a single pass evap, not a double pass.

  7. #7
    Join Date
    Sep 2008
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    Delaware
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    I figure you should need about 1224 gpm thru the cond for 425 tons @ a 10 delta T. That flows should produce about 13' delta P

    The single pass evap can vary if you know the delta T (5-8-10) or the capacity of the pumps it would help.

    On those machines we used a SWAG of 2 1/2 gpm per ton on the evap and 3 gpm per ton for the cond for field work

  8. #8
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    What I am trying to determine is if the condenser tubes are fouled or not according to Tranes literature, it states to see the "Trane CenTraVac Catalog for curves showing pressure drop vs. water flow" to determine if the tubes are fouled. This Catalog is what I am looking for.

    Thanks, Chet
    Life is too short not to enjoy life to the fullest - Don't be bogged down dealing with difficult people -who try to inflict their problems in life onto you or other good people...

    "Instead return the mutual respect to the good people who respect you - Forget about the one's who won't" .....what Chet lives by.....

  9. #9
    Join Date
    Jul 2001
    Location
    Canada
    Posts
    1,810
    I have the TRANE CENTRA VAC catalog your refering too.

    Is your PCV-4D a single pass or 2 pass evaporator and the catalog has 4 WATER PRESSURE DROP charts in it.


    Design info listed is External tube surface Evap 2596 SQ Feet Cond 2491 SQ Feet

    2 PASS

    Evap 421 - 1540 GPM Cond 525 - 1922 GPM

    1 PASS

    Evap 1400 - 3080 GPM Cond 1749 - 3844 GPM


    1,060 Lbs of refrigerant , 7 Gallons of oil , Operating weight 20,800 Lbs Shipping Weight 20,000 Lbs

  10. #10
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    Jun 2007
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    Hi Control Man,

    Can you please email the catalog to me, my email address is in my profile.


    Thank you, Chet
    Life is too short not to enjoy life to the fullest - Don't be bogged down dealing with difficult people -who try to inflict their problems in life onto you or other good people...

    "Instead return the mutual respect to the good people who respect you - Forget about the one's who won't" .....what Chet lives by.....

  11. #11
    Join Date
    Jul 2001
    Location
    Canada
    Posts
    1,810
    Sorry but its not in PDF form , about 30 pages and is a little on the old / abused .

    Will see how it scans.

  12. #12
    Join Date
    Sep 2008
    Location
    Delaware
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    243
    You should be able to pick up fouling by using the approach.

    What problem are you having? Perhaps we can help!

  13. #13
    Join Date
    Jun 2007
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    Sounds good, Thanks Chet

    Quote Originally Posted by Control Man View Post
    Sorry but its not in PDF form , about 30 pages and is a little on the old / abused .

    Will see how it scans.
    Life is too short not to enjoy life to the fullest - Don't be bogged down dealing with difficult people -who try to inflict their problems in life onto you or other good people...

    "Instead return the mutual respect to the good people who respect you - Forget about the one's who won't" .....what Chet lives by.....

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