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  1. Replies
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    680

    that is a lot of help Icemeister I appreciate it.

    that is a lot of help Icemeister I appreciate it.
  2. Replies
    3
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    680

    40 deg room to 0 deg

    I have a staging warehouse that is kept at forty using Bohn condensors and Heatcraft evaporators that the production managers want to be lowered to zero. These are R-22 systems with air defrost how...
  3. Replies
    7
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    1,123

    Chiller Plant in CPVC

    Hey Guys,
    We need some input on this, has anyone ever worked in a chiller plant that was piped in CPVC . We have an engineer that proposes this in one of our plants. Does any have any Pros and Cons....
  4. Thread: Help

    by hvacplumb
    Replies
    0
    Views
    343

    Help

    Hey Guys
    I need to know what tonnage this is
    American Standard electric air handler-Model EF-490
    Serial # E70G001763
  5. Replies
    43
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    3,504

    I am a union pipefitter and plumber and I have...

    I am a union pipefitter and plumber and I have put together miles of screw pipe and I will always teflon first and then put a little dope on.
  6. Thread: p-traps

    by hvacplumb
    Replies
    19
    Views
    1,192

    we are not talking about sucking water we are...

    we are not talking about sucking water we are talking about moist air.
  7. Thread: p-traps

    by hvacplumb
    Replies
    19
    Views
    1,192

    humidity migration

    yes all evaps are in same space.How much negative pressure would it take to pull moist air into a space not much.
  8. Thread: p-traps

    by hvacplumb
    Replies
    19
    Views
    1,192

    if i have 10 evaporators draining into one main...

    if i have 10 evaporators draining into one main couldn't i be sucking moisture in if one or two of the pans are draining and the trap is on the very end of the line.the installation instructions...
  9. Thread: p-traps

    by hvacplumb
    Replies
    19
    Views
    1,192

    the frost is building up above the units on the...

    the frost is building up above the units on the ceiling and bar joists
  10. Thread: p-traps

    by hvacplumb
    Replies
    19
    Views
    1,192

    p-traps

    speaking of p-traps i maintain a 20,000 sq ft -10 freezer for composite material storage.the contractor installed a p-trap at the very end of the drain with 10 evaporators connected to it.we are...
  11. Replies
    16
    Views
    2,421

    p-traps

    speaking of p-traps i maintain a 20,000 sq ft -10 freezer for composite material storage.the contractor installed a p-trap at the very end of the drain with 10 evaporators connected to it.we are...
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    1,004

    11" wc you are using propane i assume

    11" wc you are using propane i assume
  13. Replies
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    541

    thanks

    how about some help instead of worrying about where it is posted
  14. Replies
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    567

    cooling tower control

    I need to rework the controls on a tower that cools hydraulic oil thru a heat exchanger.I am going to hook up a t-8000 receiver to control the bypass and fan.Does anyone have a typical drawing that...
  15. Replies
    3
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    541

    pneumatic cooling tower control

    I need a control drawing of a bypass valve and fan control.
  16. Thread: rtac140

    by hvacplumb
    Replies
    11
    Views
    1,519

    rtac

    I finally crawled up on top and looked .Condensor fans are tied together at motor instead of contactor. Fan spins backwards and I didnt catch it at first.Will post all info when I get motor...
  17. Thread: rtac140

    by hvacplumb
    Replies
    11
    Views
    1,519

    trane literature

    Graham,
    I appreciate your input.Is there any more service literature on this chiller that I can aquire.
    Merle Wilbur
    Service Tech
    Bell Helicopter
  18. Thread: rtac140

    by hvacplumb
    Replies
    11
    Views
    1,519

    yes it is a high oil temp alarm

    yes it is a high oil temp alarm
  19. Thread: rtac140

    by hvacplumb
    Replies
    11
    Views
    1,519

    I have a rtac that is giving me a oil temp alarm...

    I have a rtac that is giving me a oil temp alarm i have read the diagnostic in the o&m and it sounds like it could be related to the small load that we have on the chiller.
    does anyone have input....
  20. Thread: politics

    by hvacplumb
    Replies
    4
    Views
    649

    -yes hvacpope typing lets people act in ways...

    -yes hvacpope typing lets people act in ways that they probably wouldn't in person.Use the forum for what is intended for.....
  21. Thread: politics

    by hvacplumb
    Replies
    4
    Views
    649

    Hey guys, I have enjoyed this site for several...

    Hey guys,
    I have enjoyed this site for several years and I have gained a lot of information . My concern is about all the political posts. I am a union member but i don't think this is a forum about...
  22. Thread: carrier info

    by hvacplumb
    Replies
    2
    Views
    867

    I need wiring diagrams for a 48DA016 Do not have...

    I need wiring diagrams for a 48DA016 Do not have serial #
    I also need IOM manuals.Can anybody Help.
  23. Replies
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    1,051

    not a scroll and disregard the argument and yes...

    not a scroll and disregard the argument and yes oil pumps are directional but he is saying something about centrifugal weights on the crankshaft or some thing like that.has anybody seen that.
  24. Replies
    9
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    1,051

    A friend of mine says that he installed a...

    A friend of mine says that he installed a hermetic trane compressor that kept tripping an overload.He could not figure out why so he called techinal support and they told him to change the rotation ....
  25. Thread: fuses

    by hvacplumb
    Replies
    4
    Views
    937

    what do the abbreviations on fuses stand for

    what do the abbreviations on fuses stand for
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