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  1. Thread: CVGF Manuals??

    by kcwong
    Replies
    16
    Views
    2,966

    CVGF

    Trane built CVGF in La Crosse before they switch the production to China. No Frane or US CVGF now. China only. High speed, two stages, 134a, CH530, less foot print, falling film evap.(not flooded,...
  2. Replies
    33
    Views
    2,023

    It is great to have 20+ reply from the community....

    It is great to have 20+ reply from the community. However, nobody tell me the name of any refrigerant supplier. I guess the problem is not only sourcing the R22 refrigerant but also my english level...
  3. Replies
    33
    Views
    2,023

    Their are equipment suppliers instead of...

    Their are equipment suppliers instead of refrigerant.
  4. Replies
    33
    Views
    2,023

    I did search in Google but just find some...

    I did search in Google but just find some suppliers in US or online suppliers. I need only 10lb for top up.
  5. Replies
    33
    Views
    2,023

    R22 refrigerant

    I got 313A licence and ODP card but don't know where to buy R22 in Toronto.
  6. Replies
    33
    Views
    2,023

    Refrigerant Suppliers

    Please advise the R22 suppliers in great Toronto area.
  7. Replies
    4
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    1,013

    Noise Problem

    Agree with consolidmech.

    Most of the noise problem is comming from the condenser fans instead of vibration. Install some partitions to block the noise.
  8. Thread: Trane Eagle

    by kcwong
    Replies
    2
    Views
    527

    Trane Eagle

    I want to know either.
  9. Replies
    2
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    469

    Ext CHW reset

    If you have such unit, you can try to modify the program. There should be a 1U6 optional broad to provide such fuction and you can get it in the DynaView. Tell us if the program is able to modify.
  10. RH vs moisture content

    The lamp just decrease the RH with the moisture content remains the same. The RH is indicating distance to the dew point (100% RH). If you lower the RH, the condensate will not easily appear. The...
  11. Replies
    159
    Views
    25,242

    Refrigerant Issue

    Please not to concern the phaseout date as your R11 was phaseout more than 10 years ago but you still using it. In 1995, we guess there would be great business in refrigerant replacement market....
  12. Trane Centravac

    CVHE/F/G are the multi stage R123 chillers of Trane.

    CVHE - 3 stages from 150 to 500 ton

    CVHF - 2 stages

    CVHG - 3 stages from 500 to 1400 ton

    The tonnage may be varied with difference...
  13. Replies
    23
    Views
    2,667

    Trane Literature

    As you are Trane guy, go to Trane and there are some literature for the airside system eg. clinic or system manual.
  14. Thread: ductualutor

    by kcwong
    Replies
    8
    Views
    1,482

    ductulator

    try this.

    http://pda.hkshop.com/airduct.htm
  15. Replies
    26
    Views
    3,187

    Trane guy

    Are the guy worked in Trane China?
  16. Replies
    17
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    5,856

    Call local sale office.

    Call local sale office.
  17. Replies
    22
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    2,823

    Split system

    If only one AHU, just put a condensing unit and a DX AHU.
  18. Replies
    9
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    4,496

    Maybe simple

    Did you remove the cap at the pump discharge?
  19. Replies
    13
    Views
    2,807

    Fan wheel

    Try to replace the fan with others brand. The performance should be similar with same wheel diameter and blade type.
  20. Replies
    4
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    973

    air flow is Important

    Be careful the design air flow. Most consultant over estimated the external static pressure. I saw some of them with 40% more flow than design. Then, the water and air temp. will be wrong.
  21. Replies
    50
    Views
    6,900

    They show the rigging holes & CG In IOM

    They show the rigging holes & CG In IOM
  22. Replies
    13
    Views
    3,062

    I got this story in 1991. When Trane develop...

    I got this story in 1991.

    When Trane develop their screw compressor, DB screw chillers had so much bad jobs in US. People even don't want to hear screw compressor/chiller. Then, Trane used series...
  23. Replies
    13
    Views
    3,062

    Thanks! You are the first guy told me CenTraVac...

    Thanks! You are the first guy told me CenTraVac (Centrifugal Trane Vacuum). I guess Series R using same control panel with centravac. Do you know why using Series R instead of screw.
  24. Replies
    13
    Views
    3,062

    CentraVac

    Both Centrifugal & seriesR are named CentraVac
  25. Thread: Compressor Oil

    by kcwong
    Replies
    3
    Views
    749

    Good point! People keep changing compressor...

    Good point!

    People keep changing compressor oil regularly instead of checking them. It is better to check the oil before changing it or going to next step. Tech may earn more when changing oil,...
  26. Thread: york chiller

    by kcwong
    Replies
    8
    Views
    1,083

    The problem may not be the low load...

    The problem may not be the low load compressor/motor for long time. The oversized chiller will not run for long actually. It should be start/stop very often. Please check the counter and the run...
  27. Thread: CVHF mystery

    by kcwong
    Replies
    13
    Views
    1,736

    There are not so many nonlatching fault for CH530...

    There are not so many nonlatching fault for CH530 e.g. no load, no flow, power loss/momentary power loss etc...

    The water flow seemd too low. CVHF490 should be around 500 ton. Flow should be...
  28. Replies
    5
    Views
    826

    Not exactly! Trane used diff controller on diff...

    Not exactly! Trane used diff controller on diff chiller. If you know the type of chiller, The controller will be figured out. Then, we can see the function for the serial port. It would not be a open...
  29. Thread: CVHF mystery

    by kcwong
    Replies
    13
    Views
    1,736

    How about your water system? The chiller seems...

    How about your water system? The chiller seems stoped by no load, then no diagnostic appeared. Did you reset the chiller after it down?
  30. Thread: Trane S chiller

    by kcwong
    Replies
    3
    Views
    877

    Trane Oiless Chiller

    They made some of them to client for the final test. However, the project was terminated without any announcement. Maybe the ceramic bearing chiller cannot make profit for Trane or problems with...
  31. Replies
    5
    Views
    826

    Trane Chillers

    What kind of chiller you have? The tonnage? We can check the model if you provide these data.
  32. Replies
    5
    Views
    854

    Chilled water system

    Most of the time, the problem will not at the chillers themselves. Goto the web site of Carrier or Trane for the system. The system component (pumps, valves, controls etc...) always gives you trouble.
  33. Replies
    6
    Views
    1,162

    RTAC fan motor

    I think it is a GE motor
  34. Replies
    79
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    7,212

    VPF is good

    MoonII,

    VPF is the latest system that try to provide exact chilled water to the system. Less bypass water, less pump energy, constant delta T then better heat transfer in coils and better chiller...
  35. Replies
    79
    Views
    7,212

    Chiller Plant Control

    The chiller manufacturers are now having their building automation dept. e.g. Trane ICS, or when Johnson Controls bought York. The trend is chiller supplier c/w plant control system.
  36. Replies
    17
    Views
    4,097

    Trane Office

    Try to contact the Trane local sale office. They have a system called Eagle with soft copy of such IOM in CDs.
  37. Replies
    4
    Views
    813

    If you have six more office/warehouses. It should...

    If you have six more office/warehouses. It should be more budget to hire an e&m engineer or you can lump these project with the interior designer. Both are pro.
  38. Replies
    79
    Views
    7,212

    VPF is good

    I agree that VFD will save operating cost. However, some chiller plan don't fit due to their control system. It is no difference between their band Trane, York or Carrier if they are DDC controlled....
  39. Thread: Cvhe080

    by kcwong
    Replies
    18
    Views
    1,829

    Engineering Bulletin

    I have EB regarding the condenser water temp control. Please tell me your e-mail if you want it.
  40. Replies
    14
    Views
    2,054

    Diagnostics

    It seems couple of alarms before it down. You don't need to turn the unit on and off to reset. You can reset the alarm and start the unot again. If the unit doesn't start, it will show you the...
  41. Replies
    26
    Views
    2,831

    Flow direction

    The pipe size may be OK but you better check the spec. of the coil. The design water flow will help you to size the water pipe. Check the flow direction first. Then, the valves may be installed...
  42. Thread: Cvhe080

    by kcwong
    Replies
    18
    Views
    1,829

    Most centrifugal chillers have same problem. They...

    Most centrifugal chillers have same problem. They will lost oil when running at partload for long.
  43. Replies
    8
    Views
    22,126

    I have a program for duct sizing. Give me your...

    I have a program for duct sizing. Give me your e-mail if you want.
  44. Replies
    339
    Views
    45,938

    I have 10+ years wit Trane as well, the company...

    I have 10+ years wit Trane as well, the company changed when Fed as CEO.
  45. Thread: Cvhe080

    by kcwong
    Replies
    18
    Views
    1,829

    I think it should be the best way to recover the...

    I think it should be the best way to recover the unit.
  46. Replies
    18
    Views
    1,087

    Single inlet centrifugal fan

    Try SISW fan as it can provide highest static pressure at this airflow. Up size fan wheel or motor will push the fan to surge area. check with the fan curves from sppliers.
  47. Replies
    13
    Views
    1,425

    pressure of the room

    Is all the supply air from outdoor? If so, u can't supply 6000 cmh air to the room with only 3000 cmh exhaust. The total exhaust air should be 6000 as 3000 from the fan and 3000 leaked by other ways....
  48. Thread: Chiller choice

    by kcwong
    Replies
    19
    Views
    2,198

    Trane should be the best!

    Trane has an existing building group for the existing building projects. The sales engineers will not fight with their service engineers. Please do not compare the first cost only. The running cost...
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