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  1. Replies
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    951

    123 for setpoints, and 321 for setup functions...

    123 for setpoints, and 321 for setup functions are factory default passwords for liebert. Units ship from the factory and will default to these passwords if the controls are put through a full reset....
  2. Replies
    5
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    951

    you need to give more info in your profile. ...

    you need to give more info in your profile.

    Then.....

    what type of liebert system and what level of control?
  3. Replies
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    1,442

    You need to check the installation to insure the...

    You need to check the installation to insure the it doesn't exceed the NPSH of the pumps, don't forget to factor in the altitude if you are above sea level very much.
  4. Replies
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    3,463

    You could leave the beeper disabled and monitor...

    You could leave the beeper disabled and monitor the alarm contacts, it may be alarming and clearing before you see what is causing the alarm.
  5. Replies
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    2,665

    "All I see is a service cap missing an "O" ring";)

    "All I see is a service cap missing an "O" ring";)
  6. Replies
    13
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    1,470

    No, double trapping will cause a unit to not...

    No, double trapping will cause a unit to not drain properly on a negative side system.
  7. Replies
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    962

    "Is the HGV to keep suction pressure up or lower...

    "Is the HGV to keep suction pressure up or lower head pressure?"

    To keep suction pressure up under low load.
    Head pressure is controlled by the condenser, most likely a P-66 control that...
  8. Replies
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    962

    "The hot gas valve was active and was dumping hot...

    "The hot gas valve was active and was dumping hot gas as it should"

    What was the suction pressure? the HGB should only allow flow if the suction pressure is below the valves setting. And yes the...
  9. Replies
    10
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    962

    "On lieberts you will never get rid of all the...

    "On lieberts you will never get rid of all the bubbles all the time"


    Factory charge procedure calls for clearing sight glass then adding additional refrigerant to obtain an additional 5 to 10...
  10. Replies
    45
    Views
    4,876

    Kwik Charge...

    Kwik Charge
    http://www.grainger.com/Grainger/items/3KU66?BaseItem=1YNU9#
    I've been using one of these for years they work great.
  11. Replies
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    1,709

    Question #1 how much are your units loaded, you...

    Question #1 how much are your units loaded, you could determine by checking the run hours log if you have AM or AG processors, compare the fan run hours to the compressor run hours.

    Concerning the...
  12. Replies
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    3,811

    Just to clarify, the short to ground is most...

    Just to clarify, the short to ground is most likely or could be at just one location or area of on of the three independent windings of the motor. the motor windings are connected internally at each...
  13. Replies
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    1,725

    Really ? it doesn't sound like it to me.

    Really ? it doesn't sound like it to me.
  14. Replies
    20
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    1,725

    Actually the econocoil will provide some cooling...

    Actually the econocoil will provide some cooling up to the point where the glycol temp is the same as the room temp.

    From the:
    Liebert Deluxe System 3
    Operation and Maintenance Manual
    ...
  15. Replies
    4
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    1,061

    The common alarm is definantly a set of dry...

    The common alarm is definantly a set of dry contacts, are you sure you have your connections on TB1-6 and TB1-7.
  16. Replies
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    1,285

    yellow jacket makes one, just like a cutter but...

    yellow jacket makes one, just like a cutter but the wheel has a rounded edge, they work good.

    http://www.yellowjacket.com/HVACRProducts.asp?t=HVACR&l=9&c=82&p=172
  17. Replies
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    3,189

    "This will ensure enough liquid on a 95*F day" ...

    "This will ensure enough liquid on a 95*F day"

    I think the correct information would be that the ball at the 1/2 level of the top receiver sight glass would indicate the proper charge level for...
  18. SKOOKUM! It's a northwest thing, you might...

    SKOOKUM!



    It's a northwest thing, you might not understand.

    http://img356.imageshack.us/img356/4359/homeh1.jpg
  19. These type of systems need a fence built around...

    These type of systems need a fence built around the condenser to prevent the crosswinds from causing overcondensing, I agree that installing the condenser indoors to reclaim the heat would be a good...
  20. Replies
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    2,396

    Concentrics are fine installed horizontal, and as...

    Concentrics are fine installed horizontal, and as previously stated the intake air fitting must be oriented to prevent a water trap , also the piping must maintain the proper pitch for venting and...
  21. Replies
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    8,465

    I use nitrogen with 22 as a tracer gas, which is...

    I use nitrogen with 22 as a tracer gas, which is EPA Ok, and one of my leak detectors usually my Inficon D-tek or my H-10. Use only the best leak detector so you can trust it, and look until you find...
  22. Replies
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    684

    That's sad, but on the bright side it sounds like...

    That's sad, but on the bright side it sounds like you weren't hurt too bad, although you should get checked out, and at least the other guy had ins. My daughter was rear ended with her sister in the...
  23. From the Sil Fos website, 'How To' Information...

    From the Sil Fos website,

    'How To' Information


    Frequently Asked Questions


    The Brazing Process - Six Basic StepsHowever, when brazing copper to steel (in compressor or valve assemblies)...
  24. Replies
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    1,868

    Don't be thick, study the info in the Deluxe...

    Don't be thick, study the info in the Deluxe System/3 Technical Data Book #SL-18100 (9/04) Book page #16, pdf page #20

    The type of systems I work on are liebert and if you check out the info...
  25. Replies
    22
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    1,868

    A item to investigate with data cooling is the...

    A item to investigate with data cooling is the sensible heat ratio (SHR) of the equipment you are using, typical people coolers have a average SHR of .73, which means you will only get 73% of the btu...
  26. Replies
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    4,418

    "You might be a redneck if....." ...

    "You might be a redneck if....."



    http://i179.photobucket.com/albums/w310/thenight1/009.jpg



    Unbelievable
  27. Replies
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    4,591

    Very nice job. A couple things, the condensate...

    Very nice job.

    A couple things, the condensate drains don't appear to have vents after the traps, if the termination in the pump is below the water level in the sump it will form a double trap and...
  28. Replies
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    489

    Could be a circ. pump, but working on boiler...

    Could be a circ. pump, but working on boiler systems should be left to pros.
  29. where do you live? city/state what size is your...

    where do you live? city/state
    what size is your house and what type of insulation, have you had a heat loss/heat gain calculation done?
    if you fill in your profile you will get more responses.
  30. Replies
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    6,238

    Yeah, that's the one I use I've gone through on...

    Yeah, that's the one I use I've gone through on set of batteries but it's a lot faster than the regular drill/driver and lighter yet has the power to bust loose the tight screws



    To: refer guy...
  31. Replies
    2
    Views
    1,541

    Rheem ducting, refresher

    Found this on a service call, customer has had elements burned out, and heatpump high pressure switch trips.

    View of fine take off locations, and duct size.
    ...
  32. Replies
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    2,688

    According to the model# you posted your unit...

    According to the model# you posted your unit would be a centrifugal fan condensing unit with a fan speed control that will adjust the fan speed to maintain the proper head pressure for the system to...
  33. Replies
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    7,670

    Physoft "I will hold off on the pictures since I...

    Physoft
    "I will hold off on the pictures since I pretty much know what has to be done with only of couple of minor questions."

    The request for pics was to Help determine the best method to...
  34. Replies
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    5,984

    I think something that was previously stated...

    I think something that was previously stated should be emphasized, that being the maximum flow rate, instantaneous water heaters have a minimum and maximum flow rate therefore you need to understand...
  35. Replies
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    3,300

    do a search, more info than you can read

    do a search, more info than you can read
  36. Replies
    32
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    7,670

    could you post some pics of the install?

    could you post some pics of the install?
  37. Replies
    32
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    7,670

    Many installation instructions and good practice...

    Many installation instructions and good practice say the indoor coil should be installed with the coil pitched so the condensate drain connection is at a low point. An additional benefit to the pan...
  38. Ran across this on a maintenance I did that...

    Ran across this on a maintenance I did that illustrates the point about the vent.

    http://img214.imageshack.us/img214/1407/1000966mu0.jpg


    ...
  39. Replies
    41
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    16,148

    McQuay makes a ducted condenser you could hide...

    McQuay makes a ducted condenser you could hide that if you really want to hide a condenser.
  40. Replies
    5
    Views
    2,688

    what type of condensing unit is it? prop fan or...

    what type of condensing unit is it? prop fan or centrifugal, if centrifugal the fan has enough static available to duct and install filters.

    could you post the model #
  41. Replies
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    5,387

    Yes I've worked on several fan motors with...

    Yes I've worked on several fan motors with bearing failures from VFDs the carrier frequency induces a voltage in the rotor that shorts out through the bearing and the arc damages the bearing there...
  42. Replies
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    4,663

    You just can't make it up, that's amazing.

    You just can't make it up,

    that's amazing.
  43. These had the water hooked up. Lots of them don't...

    These had the water hooked up. Lots of them don't have water connected, when the swamp cooler feeds a captive air type hood system.
  44. It doesn't seem to be a problem if they are set...

    It doesn't seem to be a problem if they are set up properly. They don't condense on the HE since its above the dewpoint.
  45. Replies
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    622

    Put a live one under the seat of his vette and...

    Put a live one under the seat of his vette and see if he's chill, bet he'd wet himself and more.
  46. Thread: Sparky

    by hvac-tech-lane
    Replies
    17
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    4,051

    Had a sparky wire up a fused disconnect hot on...

    Had a sparky wire up a fused disconnect hot on the bottom once, when I brought it to his attention that it was wrong he said "it doesn't matter". Idiot, that makes the fuses hot even when the switch...
  47. Thread: Sparky

    by hvac-tech-lane
    Replies
    17
    Views
    4,051

    I think it may be code if not it is standard...

    I think it may be code if not it is standard practice to have the hot side of a disconnect be the top. For safety I'd like to leave it that way.
  48. Fairly common around here for kitchen makeup air....

    Fairly common around here for kitchen makeup air. Not mickey mouse (unless it's not installed right like this job).
  49. Replies
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    3,412

    ICM low ambient kit miswire.

    I've found this to be a common error.

    http://img299.imageshack.us/img299/5660/1000861ef5.jpg

    Notice the color code of the cut motor lead wires

    Unit schematic:
    ...
  50. Why some installers shouldn't do start ups.

    Or maybe even installs,

    Ran a service call last spring for gas smell. Found a makeup air system duct heater with a rusted out burner assy and cracked heat exchanger. ..............So nobody ever...
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