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  1. It cools an entire university campus in the...

    It cools an entire university campus in the middle east. The unit arrives in parts... cooler, condenser, drive train, and interconnecting piping all separate. The control panel is wired in...
  2. Brand New 17DA +5000 Ton Chiller installation

    This is one chiller out of six, newly installed
  3. Replies
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    20 PSI in the condenser on a low pressure chiller...

    20 PSI in the condenser on a low pressure chiller is not normal. If the purge is not working, then get it fixed. It sounds like your chiller is surging due to air in the system.
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    1,472

    Does this 19Dr have two compressors on it ? Is...

    Does this 19Dr have two compressors on it ? Is the discharge temp high when both compressors are on, or doesn't it matter ?
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    517

    Yes. Double risers are used on these units,...

    Yes. Double risers are used on these units, depending on the height, pipe size, etc. Separators are not 100% efficient. The piping needs to be correctly sized. Carrier has a refrigerant piping...
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    And York says that Hermetic motors are a sure way...

    And York says that Hermetic motors are a sure way to contaminate your whole refrigerant charge, and Carrier says that 123 is going to kill us all..

    Jeez - this thread is just junk.
  7. Thread: 19dk

    by techtalker
    Replies
    21
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    1,276

    for your enjoyment here are a few pics from an...

    for your enjoyment here are a few pics from an operational Trane screw chiller 460VAC 400A. Terminals totally covered and bridged with a solid block of ice. Creepy! Not at all relevant to the...
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    I always hate to say this, but .... Did you...

    I always hate to say this, but ....

    Did you press the reset softkey ? (It should be highlighted)

    What is the message on the default display screen? Is it low evap temperature ? If so, there...
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    4,159

    Contact the Replacement components division of...

    Contact the Replacement components division of Carrier in Syracuse. 315-433-4226. Tell them the serial number of the machine in question and they will fax you the perfomance data for the machine. ...
  10. Replies
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    1,509

    You have to remember that this chiller uses POE...

    You have to remember that this chiller uses POE oil, with loves moisture. Its very easy for the oil, if left open to atmosphere to become contaiminated.
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    taking apart the pump is not all that difficult. ...

    taking apart the pump is not all that difficult. My guess is that the main bushing (No bearings in the pump) is probalby gone. Look at the parts book to see if you can get individual parts instead...
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    Copeland Application R-22 to other ref

    I saw this application bulletin come in from Copeland compressor, and I thought all of you should be aware....:)

    NO: MB2008CC-40
    DATE: 12/1/2008
    TO: Air Conditioning Original Equipment...
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    2,722

    it can work, just make sure that the building...

    it can work, just make sure that the building stays dehumidified. Otherwise, if the humidity is high in the space, the cold beams can condense the moisture out, and there are no drip pans on these...
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    4,465

    One of the main claims of this "snake oil" is...

    One of the main claims of this "snake oil" is that the "polarized molecules" of the additive bond to the heat transfer surfaces and improve boiling heat transfer performance by removing oil fouling...
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    4,465

    Boy this stuff keeps on coming around in...

    Boy this stuff keeps on coming around in different forms !!:eek:

    please see this link: http://www.refrigtech.com/magic.html

    I've said other things about these types of additives in older...
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    665

    That's a RTH sccrew....

    That's a RTH sccrew....
  17. Replies
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    665

    Trane Screw phase loss

    I have a Trane screw unit, RBH 150, that is going into phase loss alarm before the compressor can even try to start. Any ideas out there ?
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    890

    section 440-22 of the code, section C states that...

    section 440-22 of the code, section C states that the protective device rating will not exceed the manufacturer's values. so the electrician need to read a little bit further.
  19. Replies
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    1,035

    If your inlet and outlet water pressures are the...

    If your inlet and outlet water pressures are the same, then you don't have any flow through the coil. Start looking for a bad valve, snapped shafts can sometimes fool ya.
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    Look at the top of the web site and do a search...

    Look at the top of the web site and do a search for "Dolphin". It is not anything you want to use.
  21. Thread: Wtf?

    by techtalker
    Replies
    10
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    1,349

    That used to be a problem way back when. I...

    That used to be a problem way back when. I remember tying in generators while working on board merchant ships. You'd have to look at the light bulbs and make your timing just right.

    Now with...
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    3,403

    This is our past. There are plenty of district...

    This is our past. There are plenty of district heating and cooling plants out there. most of them supplying chilled water to hospitals, universities, county and state gov. etc. Example: The TECO...
  23. Thread: Wtf?

    by techtalker
    Replies
    10
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    1,349

    HFC -134a

    HFC -134a
  24. Replies
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    5,274

    consolidmech - I don't know where you got your...

    consolidmech - I don't know where you got your information from, but there is no change to the bearings of a 19XR whether or not it has a vfd on it or not.
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    1,152

    More than likely suspects to your problem: ...

    More than likely suspects to your problem:

    1) Machine has been wet
    or
    2) Someone is using the wrong oil for the unit
  26. Thread: Wtf?

    by techtalker
    Replies
    10
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    1,349

    These units are now getting installed in Alaska. ...

    These units are now getting installed in Alaska. And yes, it is derived from Carrier 19XR.
  27. Thread: coelescers

    by techtalker
    Replies
    1
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    509

    I would look at a Dollinger system: ...

    I would look at a Dollinger system: http://www.dollinger-spx.com

    most of the manufacturer's use them for their components on their screw chillers.
  28. Replies
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    693

    The 206 code means that the chiller is seeing a...

    The 206 code means that the chiller is seeing a fault that is generated from the starter. What kind of starter do you have.... wye delta, solid state, or VSD ? freestanding or unit mounted?
    ...
  29. Replies
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    947

    Contact RCD for Carrier analysis if you are a...

    Contact RCD for Carrier analysis if you are a contractor. . They can give you pricing, the forms and the bottles. Call your order correspondant or Kevin Ransom 315-432-7577.
  30. Replies
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    2,855

    Bottom line.... Low discharge superheat is...

    Bottom line.... Low discharge superheat is usually caused (on a 19XR ) by excessive oil in the refrigerant circuit. NOT refrigerant charge.

    Make sure the oil reclaim system is working. Make...
  31. Replies
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    2,754

    Trane and York both have units to consider. I'm...

    Trane and York both have units to consider. I'm a Carrier person, so I won't say anything more about that.

    one thing to note - since you mention that you have only one airhandler, an important...
  32. Replies
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    701

    The RB aquasnaps have a new default password. ...

    The RB aquasnaps have a new default password. Its 0111.
  33. Replies
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    5,405

    Service bulletins and Start-Up, Operating &...

    Service bulletins and Start-Up, Operating & Maintenance catalogs for Carrier centrifugal chillers are now located on www.hvacpartners.com. In order to access this site, you must contact your local...
  34. Replies
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    652

    I don't know how you can calculate system volume...

    I don't know how you can calculate system volume by looking at the tonnage of the machine. there is a recommended minimum volume per ton, but that is minimum, I don't care how big the loop is.
    ...
  35. Replies
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    Read the Start-up, operation and maintenance...

    Read the Start-up, operation and maintenance manual for the unit. All the weights and dimensions are listed in the back of the book.

    You can get the 19XR book on-line at Carrier.com

    There...
  36. Replies
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    1,143

    I think that the R22 Carrier recips all had fan...

    I think that the R22 Carrier recips all had fan units cooling off the heads. You may have to do this.
  37. Replies
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    1,003

    More likely than the incorrect motor is a poor...

    More likely than the incorrect motor is a poor incoming power supply. If the motor is trying to suck in more amps than the system is capable of giving, you will have this situation. A poorly sized...
  38. Replies
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    960

    I don't see it as a big issue. You are less than...

    I don't see it as a big issue. You are less than 1.5 degrees high. The controls limit the machine before the temp hits 33 F anyway. Just be aware of this when you are looking at approach...
  39. Replies
    4
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    960

    Make sure the machine is off when you look at the...

    Make sure the machine is off when you look at the pressure and the evap refrigerant temp. If the temperature is not corresponding to the pressure, then you did not calibrate the pressure transducer...
  40. Replies
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    8,090

    true meg ohm test equipment will have multiple...

    true meg ohm test equipment will have multiple voltage test settings, and can be powered by batteries, cranks, and power cords. They have capacitors and transformers inside to build up the output...
  41. Replies
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    You need to know how big the space is that you...

    You need to know how big the space is that you are supplying air into from this system.
  42. Replies
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    1,794

    Your first alarm is the one you need to address...

    Your first alarm is the one you need to address first. Loss of communication with the Starter. If you can't communicate, then all the other things you mention can't talk to the controls, so I would...
  43. Replies
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    720

    I agree with chiller mekanik. There are no...

    I agree with chiller mekanik.

    There are no o-ring or gasket changes to make, all the materials are compatable. Motor varnish is okay as well.

    EA's are great machines. they'll last forever,...
  44. Thread: Gps

    by techtalker
    Replies
    52
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    4,484

    just another thought about GPS.... Don't get me...

    just another thought about GPS.... Don't get me wrong, it can be abused, which everyone here has attested to. I don't think it is needed in most offices.

    There are a couple of advanages that...
  45. Thread: high limit

    by techtalker
    Replies
    2
    Views
    755

    I don't know who gave you that temperature...

    I don't know who gave you that temperature figure, but the HH18HA148 (the 'A' at the end just stands for original equipment) is a temperature switch with auto reset that is set to open at 150 +/- 6 F...
  46. Replies
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    751

    SSAC is now owned by ABB. So the manufacturer of...

    SSAC is now owned by ABB. So the manufacturer of these relays sometimes is shown as ABB.

    You can also go to the SSAC website: Http://www.ssac.com
  47. Replies
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    835

    If you really want to have it rebuilt, call...

    If you really want to have it rebuilt, call Carrier's National service center in Houston. 713-797-8900. or see this link: http://www.carriernsc.com
    They can either get you a price to rebuild the...
  48. Replies
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    3,175

    Ron Thanks for the pics! I recognize that...

    Ron

    Thanks for the pics! I recognize that drive train.. That's the Co-op city jobsite in Da Bronx. Carrier is in the middle of removing the old worthington compressors with brand new 5,000 ton...
  49. Replies
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    13,865

    Wow, A 70 F setpoint for chilled water? ...

    Wow, A 70 F setpoint for chilled water? That's pretty high. Sounds like you also have no load on the machine if it is cycling that much. A tank can help with this situation, (Simple tank...
  50. Thread: Test yes

    by techtalker
    Replies
    1
    Views
    414

    Test yes

    :) 333
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