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Type: Posts; User: narkom

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  1. Look...

    Look
    http://www.hvacrinfo.com/cope_ae_bulletins/TAE1166.PDF
  2. Thread: Liebert System4

    by narkom
    Replies
    7
    Views
    666

    It is a LD67GB glycol cooled close control unit....

    It is a LD67GB glycol cooled close control unit. Here with I attache the tech. manual.
  3. Thread: Liebert System4

    by narkom
    Replies
    7
    Views
    666

    Thanks! Another set of dipswitches there is on...

    Thanks!

    Another set of dipswitches there is on System3 control board.
  4. Thread: Liebert System4

    by narkom
    Replies
    7
    Views
    666

    Liebert System4

    Hi!
    There is a Liebert LD precision unit with two compressors and infrared humidifier.
    The unit controller is a System 4, p/n L13688-00.
    Does anybody know the 1 to 8 dip switches settings to...
  5. Replies
    6
    Views
    506

    If so, the problem is 24C256N EEPROM (T memory)....

    If so, the problem is 24C256N EEPROM (T memory).

    http://images.vfl.ru/ii/1425736152/bd5b5ed4/8000431.jpg
  6. Replies
    6
    Views
    506

    Is it a pCO system controller?

    Is it a pCO system controller?
  7. Replies
    2
    Views
    457

    Try Danfoss fittersapp...

    Try Danfoss fittersapp
    https://play.google.com/store/apps/details?id=com.danfoss.troubleshooterapp
  8. Replies
    27
    Views
    1,627

    Sporlan only says that "....Filter-Driers are not...

    Sporlan only says that "....Filter-Driers are not recommended for use in the
    discharge line. The water capacity in this location would be greatly reduced due to the high operating temperature."
  9. Thread: Trane CH532

    by narkom
    Replies
    0
    Views
    310

    Trane CH532

    Hi guys!
    There is a Trane CGAN chiller with CH532 V3.1 pCO3 based controller. Now we need to run the LonTalk network. Could anyone help me with the .NXE file to be downloaded in the Lon board and...
  10. Thread: Thermistors

    by narkom
    Replies
    12
    Views
    1,026

    Excellent post! Would you please to clear one...

    Excellent post!
    Would you please to clear one more thing. Why the different types of probe are in use. I mean NTC10k, Pt1000, NTC3k, Pt100 etc.
    Which are advantage and disadvantage of each type?
  11. The readings are indoor units inlet temperature,...

    The readings are indoor units inlet temperature, so it may differ.
  12. Replies
    7
    Views
    508

    Look here...

    Look here
    http://old.mylinkdrive.com/MrSlim/mea/webindex.htm
  13. Replies
    14
    Views
    1,492

    Yes, the fan spinning in the correct direction as...

    Yes, the fan spinning in the correct direction as the arrow on the fan shows.
    Not sure if the fan and evap. coil are clean. It is a 24hrs restaurant with the kitchen and smoking area. Gonna check...
  14. Replies
    14
    Views
    1,492

    Yes, there could be a lot of restriction besides...

    Yes, there could be a lot of restriction besides the curb adapter. Because the air flows via the flexible ducts system.
    The hot water coil was surely removed from the unit as it was damaged with...
  15. Replies
    14
    Views
    1,492

    The tripping is manual reset, but anyway it takes...

    The tripping is manual reset, but anyway it takes time to cool down. In accordance with technical data I should have 2200 CFM and even more. Im going to check the belt tension.
    The heater is custom...
  16. Replies
    14
    Views
    1,492

    Only common words on the page 42 instead. Thanks...

    Only common words on the page 42 instead. Thanks anyway.



    Yes, it is a downflow discharge unit mounted on a roof curb adapter.
    The heating element was instaled instead of the hot water coil a...
  17. Replies
    14
    Views
    1,492

    Rooftop heating elements

    Hi!
    Would like to seek some help about Trane WSD90 heating element p/n 21-3513-04.
    The problem is that the protective thermostats trip very often and the customer is not happy at all.
    I suppose...
  18. Replies
    8
    Views
    694

    http://www.hvacrinfo.com/cope_ae_bulletins/cope_gr...

    http://www.hvacrinfo.com/cope_ae_bulletins/cope_grnslm.pdf
  19. Thread: Tool bags

    by narkom
    Replies
    96
    Views
    19,327

    Does anybody use hard suitcases like these?...

    Does anybody use hard suitcases like these?
    http://www.gtline.com/toolcases.php?linea=2
  20. Thread: glycol pump

    by narkom
    Replies
    12
    Views
    2,885

    I always use a distiiled water to avoid any...

    I always use a distiiled water to avoid any impurities like a chlorine. But on that site I have ready-to-use mixture.
    Yes I have holding tank.
  21. Thread: glycol pump

    by narkom
    Replies
    12
    Views
    2,885

    Thanks for advice! Very helpful.

    Thanks for advice! Very helpful.
  22. Thread: glycol pump

    by narkom
    Replies
    12
    Views
    2,885

    It is a new system and I am filling the system...

    It is a new system and I am filling the system with the 40% water-glycol mixture. Sorry for not being clear enough.
    The points are:
    -the pump must be able to suck from the drum
    -the water-glycol...
  23. Thread: glycol pump

    by narkom
    Replies
    12
    Views
    2,885

    glycol pump

    Hello!
    I need to fill an HVAC system (air handlers and fancoil units) with the propylene glycol. The system total volume is about 9000 Litres (2377.55 Gallons).
    The glycol package is a 55 Gallon...
  24. Replies
    6
    Views
    1,096

    Look http://www.dallashermetic.com/techinfo.html

    Look
    http://www.dallashermetic.com/techinfo.html
  25. Replies
    3
    Views
    1,186

    Is this what you need

    Is this what you need
  26. Thread: PU24EK3 LED7

    by narkom
    Replies
    2
    Views
    1,190

    LED7 should not be on for cooling only models. I...

    LED7 should not be on for cooling only models. I gues you mean puh24ek3. It is normal. It is mean that the bypass valve is on during 3 minutes after the compressor stops....
  27. Replies
    17
    Views
    3,942

    It is a variation. To be exact, the filter drier...

    It is a variation. To be exact, the filter drier is right upstream the TXV. It is like this
  28. Replies
    17
    Views
    3,942

    Sorry for not being clear enough. I attache the...

    Sorry for not being clear enough. I attache the refrigeration diagram as I could understand it.
    So in cooling mode there is a temperature drop across the check valve in about 3K. May it be the...
  29. Replies
    6
    Views
    1,401

    You should just punch in the number.

    You should just punch in the number.
  30. Replies
    17
    Views
    3,942

    And there is a TXV for heating mode with a check...

    And there is a TXV for heating mode with a check valve in bypass line for cooling mode.
    Now there is an evaporator freezing in cooling mode. Suction pressure is 2.3 bar (R407C), air filters are...
  31. Replies
    6
    Views
    1,401

    Press "program-7396-enter" and correct settings.

    Press "program-7396-enter" and correct settings.
  32. Replies
    17
    Views
    3,942

    There is a wiring diagram on the door. The unit...

    There is a wiring diagram on the door. The unit has no TXV or capillary tube so I cant understand how it works.
  33. Replies
    17
    Views
    3,942

    Trane rooftop unit

    Hello!
    I badly need a refrigeration diagram of the Trane Voyager I rooftop unit. The model is TSD90. Can anybody help me?
    Thanks!
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