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  1. Replies
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    Hey Guys, One of our supervisors got in touch...

    Hey Guys,
    One of our supervisors got in touch with a local York parts rep and got an answer.
    York says "these seals are designed for some oil leakage"
    Well H**L, we figured they'd say that.
    The...
  2. Replies
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    765

    Try this. It has the info you need to make the...

    Try this.
    It has the info you need to make the puller and overhaul the compressor.

    http://www.carlylecompressor.com/Files/Carlyle_Compressor/Local/US-en/documents/530-505_5FHStart-up_Install.pdf
  3. Replies
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    1,927

    OK Guys, Thanks for all the replies. This gives...

    OK Guys,
    Thanks for all the replies. This gives me something to go to the customer with.
    I worked on open recips for years and those seals seldom dripped. When they went it was obvious. I thought...
  4. Replies
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    1,927

    Does anyone have info on the allowable shaft seal...

    Does anyone have info on the allowable shaft seal leakage (oil) on York open type centrifugal compressors. All I find in the manuals is that some leakage is normal and just discard the oil collected...
  5. Replies
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    7,806

    I am told service tool doesn't work with any...

    I am told service tool doesn't work with any version of Windows beyond Windows 98. I haven't tried it on ME or Xp so I don't know.
    You also need the B&B converter to connect to the network.
    Model...
  6. Replies
    6
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    1,764

    Condensers are on a closed loop using a...

    Condensers are on a closed loop using a plate/frame heat xchngr. Water temp controlled by GBAS (70 - 80 deg.). Fan speed OK.
    I actually watched the unit cycle several times on supply air temp and/or...
  7. Replies
    6
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    1,764

    Thanks Maxster, We don't have air or WS...

    Thanks Maxster,
    We don't have air or WS economizers and disabled MWU and NSB. Unit HI never indicates anything preventing compressor operation. Also, as I mentioned, the only way to get it to...
  8. Replies
    6
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    2,852

    Ditto on the leaks

    Most situations I have experienced with "too small" involved air leaks throughout the building which never let the compressor catch up. Quite often, where demo/remodeling work is done lines get cut...
  9. Replies
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    1,764

    I posted this in the Pro Forum also. I wonder...

    I posted this in the Pro Forum also.

    I wonder if any of you Trane experts have experienced this.
    Job is:
    A multistory office bldg. (partially occupied) with VAVs and PIUs on SCWG intellipak...
  10. Replies
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    3,143

    I agree. Try this site for DowTherm products for...

    I agree.
    Try this site for DowTherm products for chillers etc.

    http://www.chillers.com/AntifreezeMain.htm
  11. Replies
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    1,725

    Check with Dwyer. They have a good variety of...

    Check with Dwyer.
    They have a good variety of flow and pressure controls.

    http://www.dwyer-inst.com/

    [Edited by coolwes on 10-25-2005 at 09:43 AM]
  12. Replies
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    1,643

    Hmmm! Seems like I remember doing something like...

    Hmmm!
    Seems like I remember doing something like that with a small motor. With no load it slung the rotor apart. I have no idea what the RPM was but it was FAST!
  13. Thread: gpm formula ?

    by coolwes
    Replies
    8
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    6,867

    BTUs/Hr = GPM x Delta T x 500

    BTUs/Hr = GPM x Delta T x 500
  14. Replies
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    764

    With DC you don't get the AC hummmmm. Contactors...

    With DC you don't get the AC hummmmm.
    Contactors are quieter.
  15. Replies
    17
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    1,596

    When a large inductive load such as a motor hits...

    When a large inductive load such as a motor hits the line it drags the voltage down considerably. This causes dimming of lights and a whole multitude of other problems.
    Most utilities dictate the...
  16. Thread: Zeotropes..

    by coolwes
    Replies
    9
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    2,360

    No, it's not backwards. Think about it. Dewpoint...

    No, it's not backwards.
    Think about it. Dewpoint is when liquid droplets start to form in the refrigerant vapor mixture. Part of the blend has a higher boiling point than the other at a given...
  17. Thread: Zeotropes..

    by coolwes
    Replies
    9
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    2,360

    If you are checking superheat use the dewpoint....

    If you are checking superheat use the dewpoint.
    If you are checking subcooling use bubblepoint.
  18. Replies
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    OK, here's my story. Reading Shogun's experience...

    OK, here's my story. Reading Shogun's experience reminded me of a simular situation.
    A large chilled water air handler with a 4 row coil located in a student center at a local college just didn't...
  19. Replies
    5
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    1,191

    I remember reading that silica was very hard to...

    I remember reading that silica was very hard to remove.
    Found this in old RSES SAM manual.
    Heavy acid concentrations require (3 gal. liquid scale remover to 10 gal. water).
    Also, after initial...
  20. Replies
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    6,175

    lenb, I gave up on the batteries in the Robinair...

    lenb,
    I gave up on the batteries in the Robinair and installed a jack that I could plug a wall wart power supply into.
    It served me well. it's somewhere in my basement now.
    Thanks again for the...
  21. Replies
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    6,175

    Excellent information! Thanks. I guess at some...

    Excellent information! Thanks.
    I guess at some point we are going to have to trust all of this new fangled electronic stuff.
    From what you are saying, I think I would go with the Yellow Jacket too....
  22. Replies
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    950

    Flotronic Monitor is available from your Carrier...

    Flotronic Monitor is available from your Carrier Distributor support guys. It's DOS based software that allows you to look at all of the temps, stages, and EXV positions while chiller is operating....
  23. Replies
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    6,772

    And then there was the 3 pipe system

    A compromise was the 3 pipe system where variable temperature hot water and chilled water were both supplied seperately and mixed with a valve at the coil to provide desired air temperature. The...
  24. Replies
    6
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    950

    These are the older model Carrier Flotronic...

    These are the older model Carrier Flotronic chillers.
    30GB, 30GT etc.
    the newer models require the use of Network Service Tool or ComfortView software (which gets into your pocketbook).
  25. Replies
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    950

    it really gives you a larger picture of what's...

    it really gives you a larger picture of what's going on during operation. Especially TXV position.
    You will need the Telebye Model 65 (or equivilent)converter connected to J8 terminals 3 & 6. I...
  26. Replies
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    976

    You should be able to use Windows HyperTerminal....

    You should be able to use Windows HyperTerminal.
    Be sure caps lock is turned on.
    You may have to change baud rate and terminal emulation settings.
    Espirit terminals were used with Comfort managers...
  27. Replies
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    826

    Try ASHRAE

    Try ASHRAE
  28. Replies
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    981

    I have never worked on them but understand that...

    I have never worked on them but understand that the railroad used them back in the steam engine years to cool the cars.
    The jet pump could produce very low pressures in the range of 6 to 7 mm Hg....
  29. Replies
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    37,163

    If the new condensing unit has a receiver, forget...

    If the new condensing unit has a receiver, forget subcooling. The condenser will not hold any liquid to subcool.
  30. Replies
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    1,616

    Be sure you are comparing apples to apples. I...

    Be sure you are comparing apples to apples.
    I had a simular experience once with over the counter contacts.
    Found out the contacts were only attached to the bar with rivets.
    The OEM specified...
  31. Replies
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    5,727

    If you are talking about the old panel with the...

    If you are talking about the old panel with the 25 pin RS232 socket, I use a standard RS232(25 pin x 9 pin)modem cable with a null modem adapter. You didn't mention the "caps lock" key. I guess you...
  32. Is the old one trashed?? I have used D series...

    Is the old one trashed??
    I have used D series impellers over in some situations where rubbing was minimal. Cleaned up the edges and reshimmed for proper volute clearance.
    In your situation this...
  33. Replies
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    1,638

    Actually, if it's wired in the vane control...

    Actually, if it's wired in the vane control circuit properly, the system you describe does a good job of reset.
    The key is not to bypass any of the 32SM safety functions and use the 32SM as a low...
  34. Thread: ABSORBER HELP

    by coolwes
    Replies
    10
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    1,319

    Not sure what type absorbers you are interested...

    Not sure what type absorbers you are interested in.
    If you go to the York web site you can download some O&M manuals on steam fired and direct fired lithium bromide machines.
    They give a pretty...
  35. Replies
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    2,276

    Good post! If you work on low pressure chillers...

    Good post!
    If you work on low pressure chillers you better know this stuff.
    Some manufacturers display pressures below atmospheric as PSIA. So you have to convert.
  36. Replies
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    Fellow Dumbass

    Sorry to hear about the mishap.
    In an effort to get a customer up and running we sometimes bend the rules.
    Funny how you get by with it for years and then WHAMMO!
    I recall a couple of cases where...
  37. Thread: carrier 19C

    by coolwes
    Replies
    5
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    1,526

    Don't have any teardown info. Carrier was pretty...

    Don't have any teardown info. Carrier was pretty stingy with that back in those years.
    I worked on a few and still have recommended clearances.
    Haven't seen one in years.
    Compressor end journal...
  38. Thread: Alignment tool

    by coolwes
    Replies
    11
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    1,758

    If you do a lot of allignment you may be able to...

    If you do a lot of allignment you may be able to justify an expensive instrument.
    But my thoughts pretty much parallel those of chiller mek.
    and I know I'm an old timer.
  39. Replies
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    3,262

    One thing about the Hg manometer and wet bulb...

    One thing about the Hg manometer and wet bulb indicator is that you are dealing directly with physics.
    They seldom lie to you.
    I had trouble finding Vac-Qs as well so I built a couple.
    Bought...
  40. Replies
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    1,912

    ASME Rating

    Check around on the pressure vessel itself. There should be a plate with the ASME rated MOP. The relief setting should never be higher that this rating.
  41. Replies
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    8,641

    Bait & switch

    Hey! thought I had found the White Book on Eagle but they only give you 10 pages of it to whet your appetite.
    Hmmmm! But they do give the phone # to order a complete copy. (502-368-6555).
    Ain't...
  42. Replies
    11
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    1,864

    I'm not 100% sure but I think the freeze stat is...

    I'm not 100% sure but I think the freeze stat is direct immersion. It has a long element that extends down between the tubes so that it responds better to the evaporator temp.
    If the water valves...
  43. Replies
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    2,880

    We service a lot of malls. Sometimes the mall...

    We service a lot of malls.
    Sometimes the mall management will try to elevate the chilled water temps to save energy. They will run this way until the tenants squawk. If the store doesn't maintain...
  44. Replies
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    2,203

    Thanks absrbr

    thanks,
    I have an old copy, didn't know it was available online.
  45. Replies
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    2,132

    For years our company had a very extensive...

    For years our company had a very extensive training program.
    I was the full time training, tech support and safety guy.
    Novice techs went through a three year program, two days a month from Oct...
  46. Replies
    9
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    1,067

    USB to Serial

    I use a usb to serial adapter but it doesn't work with everything.
    If you have Carrier Comfortview installed, it grabs the comm 1 port and makes it unavaible for HVAC Pro.
    You can reconfigure the...
  47. Thread: york skid

    by coolwes
    Replies
    2
    Views
    753

    VFDs

    I would go with pressure operated VFDs for stable head pressure(I don't like cycling fans unless there is lots of them on the cond.).
    Get rid of the receiver and take advantage of the subcooling...
  48. Replies
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    2,230

    Food for Thought

    There's a lot of good info here already but this is just a thought.
    If each damper bank has is own transducer I would think you could make the positioner span wide enough to give you more span to...
  49. Replies
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    6,055

    I would keep accurate records on approach. And...

    I would keep accurate records on approach. And until I was sure they were doing what they say, pull the heads every year to inspect tube condition.
  50. Replies
    6
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    1,701

    Seems like I remember .008 to .014 on the...

    Seems like I remember .008 to .014 on the kingsbury.
    The newer machines may be a little tighter.
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