Search:

Type: Posts; User: Domcort

Page 1 of 3 1 2 3

Search: Search took 0.01 seconds.

  1. I think that you are missing something as you...

    I think that you are missing something as you indicated the alarm is a digital scroll discharge temp alarm, is there not sensor on the discharge line off the compressor? Why look at the condenser?
  2. Replies
    7
    Views
    968

    You may want to check 37/38 as this is for the...

    You may want to check 37/38 as this is for the remote shutdown, i.e. fire alarm panel. You may wnat to install a jumper to check if it is coming from the unit or an external source.

    Hope this...
  3. Replies
    2
    Views
    3,576

    Your best bet would be to contact your local...

    Your best bet would be to contact your local Liebert Rep in your area and get an exact replacement.
  4. Replies
    3
    Views
    1,110

    Liebert Model Number

    skibme,

    You should be able to find the unit nameplate on a Mini Mate on the left hand side of the exterior panel of the unit if has not been removed, this will be in the ceiling. Some older units...
  5. Thread: Liebert ICOMM

    by Domcort
    Replies
    4
    Views
    686

    Liebert iCom

    muchofreeo,

    That is correct, when connected to a BMS system either Modus, Bacnet or other the system will not accept changes locally, and must be done on the head end. Unless you disconnect it via...
  6. Replies
    10
    Views
    1,787

    Tie the smoke detector in series with the remote...

    Tie the smoke detector in series with the remote shutdown, so that if either of them open the unit will shutdown.
    Check your units schematic for connection of the pan float switch, as you have...
  7. Replies
    5
    Views
    731

    epacertified, The model VS028AUCO will have a...

    epacertified,

    The model VS028AUCO will have a iCom Controller, the unit should also have a intellislot card holder where it will accept cards for monitoring and or communications. No converter...
  8. Replies
    5
    Views
    731

    :cheers: Intellislot Monitoring Cards LBDS ...

    :cheers:

    Intellislot Monitoring Cards LBDS

    Acquire the monitoring card from you local Liebert Rep, after installing you must setup it up thru HyperTerminal with the customer's network...
  9. Replies
    10
    Views
    1,787

    as stated, please don't do that Liebert has...

    as stated, please don't do that

    Liebert has panels that are designed to do that, Lead/Lag, changeover, temp staging. They are called AC4 and AC8, contact your local Liebert guy for advice.
  10. Replies
    19
    Views
    2,292

    havc-superman is correct, block part of the...

    havc-superman is correct,
    block part of the condenser coil to get the head pressure up to 230psi-240psi and the ball should be floating in the sight glass.
  11. Replies
    31
    Views
    3,603

    One VFD for three devices, that is one way to...

    One VFD for three devices, that is one way to keep all devices the same speed. Must be a 10hp VFD to handle the motors as well.

    I did not say that it could not be done, but many manufacture's have...
  12. Replies
    31
    Views
    3,603

    Let me reclarify scrolls less than 20hp, is what...

    Let me reclarify scrolls less than 20hp, is what I was referring too.
    VFD on Chillers all day long on 200-300 ton screws, and centrifs.
  13. Replies
    31
    Views
    3,603

    Digital Scroll Compressors

    Well VFD's on compressors have been attempted before, with a small amount of sucess.

    This is why they are using the solinoid unloader as the capacity control method, similar to the SCR reheat as...
  14. Replies
    2
    Views
    452

    Doctor, First thing is that the XDC requires...

    Doctor,

    First thing is that the XDC requires 40% or 64kw of heat load to properly operate and the sensor placement is very critical on these systems, as well as a hot aisle cold aisle contaiment....
  15. Replies
    6
    Views
    837

    134a cooling system

    Randy,

    Who is the Manufacture of the equipment at Alcatel-Lucent? As Liebert and APC, have this type of system. I have worked on many Lieberts and the pressures are pretty low as it is pumped...
  16. Replies
    16
    Views
    1,543

    Battery for Level 00

    Freonguy,

    These batteriers are still available from the factory part# G12-4480S the description is a 3.6 PWB Mount.

    Contact your Local Liebert Rep Office to order as needed.

    Hope this Helps,
  17. Replies
    16
    Views
    1,543

    Battery for Level 00

    Freonguy,

    This is a 3v battery, I will investigate a cross reference number or a suitable replacement. The new iCom boards now have a stand up disc shaped battery that is soldered in, some AM/AG...
  18. Replies
    11
    Views
    1,266

    Agreed, you should have a higher TD across the...

    Agreed, you should have a higher TD across the coaxial condenser. Keep us posted on the resolution.
  19. Replies
    5
    Views
    1,312

    XD Systems

    Philip,

    I have started many XD systems, you can contact me thru the email address in my profile as well if you wish.

    Domcort
  20. Replies
    2
    Views
    677

    Doctor, I have always kept the Min Set Point...

    Doctor,

    I have always kept the Min Set Point for the XD systems between 70 to 72 degrees. The sytem is not design to maintain room temperature, just refrigerant temp.

    Feel free to contact me if...
  21. Thread: liebert help

    by Domcort
    Replies
    7
    Views
    1,292

    How long is that piping run? removing 63lbs of...

    How long is that piping run? removing 63lbs of refrigerant for a 5-ton unit, that quite a bit.
  22. Replies
    44
    Views
    8,160

    Yeah, it makes me laugh too when contractors do...

    Yeah, it makes me laugh too when contractors do not utilize any safety's that the manufacturer installs in the equipment, or any local codes that may prevent this from happening. Seen it many times,...
  23. Replies
    4
    Views
    812

    Air Flow Airedale APC Blazer Canatal Data...

    Air Flow
    Airedale
    APC
    Blazer
    Canatal
    Data Aire
    Pamona
  24. Replies
    4
    Views
    1,859

    Jim4237 The factory is going always give you...

    Jim4237

    The factory is going always give you the worst case senario as if the were out of the part you were looking for: I believe that you are looking for a
    4C13121G1 depending on your unit. If...
  25. Since you have replaced the valve have you...

    Since you have replaced the valve have you recalibrated the valve with the existing actuator, default is 165 sec for full travel. Their are steps to recalibrated in the manual for the unit or try...
  26. Liebert Deluxe System 3 Chilled Water valve issue

    jbird218,

    The valve was replaced or the actuator, what type of controls do you have? What type of cooling algorithim ar eyou setup for Proportional, Intelligent,

    That can be obtained in the...
  27. Replies
    24
    Views
    1,610

    Liebert Training

    Here is the link for Liebert Factory Training Classes, in Columbus and Regional Classes.

    http://www.liebert.com/information_pages/information.aspx?x=Training



    heaveymetaldad - FREE Classes...
  28. Replies
    4
    Views
    2,051

    That is correct they were purchased by APC. Good...

    That is correct they were purchased by APC.
    Good Luck in finding replacement parts and customer support.
  29. Replies
    8
    Views
    2,739

    pbrunnen, Could that D be a 0, if you have a...

    pbrunnen,

    Could that D be a 0, if you have a level 03 produced between 1983-1999

    Domcort
  30. Replies
    8
    Views
    2,739

    Liebert Manuals

    pbrunnen,

    If you are correct on the model number, which I am sure you are. The unit could have been a special build for the customer that you had received the unit from.
    What contacts are you...
  31. Replies
    22
    Views
    1,905

    I think he means melt away from the sheet metal,...

    I think he means melt away from the sheet metal, regardless you will be fine as the others stated use a drill bit / dremel and go around the tube to an then cut away the metal so you can access your...
  32. amickracing, The truth always comes out when...

    amickracing,

    The truth always comes out when you start to ask the right questions??

    You are always putting the pulzzle back together and if you are not a permentnant resident to the site you...
  33. Replies
    42
    Views
    4,767

    wgrr. Your AC8 is just a changeover box, most...

    wgrr.

    Your AC8 is just a changeover box, most likely for lead/lag setup and if you have a external temp/hum sensor on the AC8 you can temp stage the units if one can not handle the load.

    You...
  34. Replies
    42
    Views
    5,278

    allstar08 I have been thrown in the mix on...

    allstar08

    I have been thrown in the mix on this. I have only been to the site twice, once to install new sheaves and pulleys and once for a maintenance. I just found out about the history of the...
  35. Replies
    42
    Views
    4,767

    wgrr Adding the inverted traps would not be a...

    wgrr

    Adding the inverted traps would not be a bad thing but will it help with oil return if the evaporater and condenser are at the same level probably not. Inverted traps would be used to keep...
  36. Replies
    9
    Views
    1,177

    Not too familiar with Compu Aire, but enough to...

    Not too familiar with Compu Aire, but enough to know that you don't mix high and low voltage together in the same conduit. If it is like most manufactures of Data Center equipment the condenser is...
  37. Replies
    9
    Views
    1,177

    P66

    madhat,

    The schematic for the evaporator and or the schematic for the condenser should tell you, the boss and the electriacn that there should be interlock wiring to the device for on/off control...
  38. Replies
    9
    Views
    963

    Are there any check valves in the Hot Gas Line,...

    Are there any check valves in the Hot Gas Line, during an off cycle you may have liquid migration back on the head. I have seen this before.
  39. Replies
    17
    Views
    1,656

    Industry Standard is 68 degrees to 72 degrees...

    Industry Standard is 68 degrees to 72 degrees with a 45-55% humidity

    Static shock will start at approximately 40% or lower depending on your bodies resistance.

    Domcort
  40. ZW17 Where are you located, I have been...

    ZW17

    Where are you located, I have been servicing Data Center gear for just over 20yrs now, 15 working for Liebert Rep in Miami.

    Is your System 2 CW or DX?, there maybe the greater lifespan in...
  41. ZW17 They have not changed the color of the...

    ZW17

    They have not changed the color of the wiring for each circuit it controls.
    i.e. Compressor/Reheat 1 Red wiring, Compressor/Reheat 2 Brown wiring, Reheat 3Orange wiring, and any SFA Special...
  42. ZW17 Picture #1 Liebert System 2 Solid State...

    ZW17

    Picture #1 Liebert System 2 Solid State Controls 30+ years old
    Picture #2 Liebert System 3 AM Controls 10-15 years old
    Picture #3 Liebert DS System iCom Controls Less than 5 years old
    ...
  43. Replies
    45
    Views
    4,719

    Plus I would think that MikeTx would know that...

    Plus I would think that MikeTx would know that 407c comes in only a 25lb cylinder, not 30lb, but who wants to be technical.

    Domcort
  44. Replies
    45
    Views
    4,719

    Two Words - Tank Heaters, they can be picked up...

    Two Words - Tank Heaters, they can be picked up at your local supply house.

    Use safe practices, you have only one life.

    Domcort
  45. Replies
    20
    Views
    3,707

    I would agree with that, the fuses protect the...

    I would agree with that, the fuses protect the wiring and the device i.e, the load.

    Domcort
  46. Replies
    20
    Views
    3,707

    Jim, Burnt wiring, smybolizies that there may...

    Jim,

    Burnt wiring, smybolizies that there may have been a loose connection(s).

    Anything can happen internally to the compressor, shorting phase to phase and then to ground can happen, shorting...
  47. Replies
    20
    Views
    3,707

    Jim, When you say a blown contactor, What do...

    Jim,

    When you say a blown contactor, What do you mean?

    I have seen many a circumsatnce that technicians do not change badly pitted contactors and then what to know why they lost a compressor....
  48. Replies
    4
    Views
    761

    You must be the lucky one, So it is a self...

    You must be the lucky one,

    So it is a self contained unit, why don't you wire the hot gas to also come on when it de-humidifies. That should solve your icing issue, does the unit have a two speed...
  49. Replies
    4
    Views
    761

    Randy, If you have a PFH Condenser, the Hot...

    Randy,

    If you have a PFH Condenser, the Hot Gas Solenoid Valve is engerized with the Liquid Line Solenoid Valve, and passes hot gas thru the control of the de-superheat TXV or quenching valve.
    ...
  50. Replies
    8
    Views
    1,118

    Should take a two to three pounds more. Check...

    Should take a two to three pounds more. Check your installation manual for the correct charging and startup porcedure, to be sure.

    Domcort
Results 1 to 50 of 112
Page 1 of 3 1 2 3
Comfortech Show Promo Image

Related Forums

Plumbing Talks | Contractor Magazine
Forums | Electrical Construction & Maintenance (EC&M) Magazine
Comfortech365 Virtual Event