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Type: Posts; User: echomech

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  1. Replies
    9
    Views
    1,162

    to start this way with bad check close discharge...

    to start this way with bad check close discharge then slowly open discharge side of pump
  2. Replies
    9
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    1,162

    the water from the suction side of pump is not...

    the water from the suction side of pump is not aganist the direction of pump the outlet side is.
  3. Replies
    9
    Views
    1,162

    answer to pump question is for normal start up ....

    answer to pump question is for normal start up . reason if check is bad NOT HOLDING you will have the weight from the column of water resting on the motor and shaft on start up .so exmaple a colunm...
  4. Replies
    5
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    835

    the purge unit removes the noncondenseable from...

    the purge unit removes the noncondenseable from top of condenser only if any air is in the locations you say. sure once systems is running they will be removed by purger.
  5. Replies
    5
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    817

    call fire Dept. dude thats a lot of refrigerant...

    call fire Dept. dude thats a lot of refrigerant waiting on shortage huh
  6. Replies
    39
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    2,668

    He knows better let him believe in mickey mouse...

    He knows better let him believe in mickey mouse , already in flordia. guess we don't need a compressor either this is fla damm sun will heat up refrigerant .
  7. Replies
    25
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    3,220

    If that is a air vent on top of the tee it should...

    If that is a air vent on top of the tee it should be removed prv should be on boiler . if is air vent why .only because air can be vented out of prv.also if vent allows steam pressure to pass prv...
  8. Replies
    16
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    1,984

    looks like 2 guys or gals same customer

    looks like 2 guys or gals same customer
  9. Replies
    19
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    2,787

    408 is drop replacement but i would still change...

    408 is drop replacement but i would still change valve then adjust superheat as needed.
  10. Replies
    19
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    2,787

    you must also change out the TXV. it's rated for...

    you must also change out the TXV. it's rated for 502 tonage not 408a also if externaly equalized or internaly if pressure drop from evap outlet to suction line greater than 2 psi this will cause...
  11. Thread: Liebert

    by echomech
    Replies
    20
    Views
    3,055

    which type of humidfier do you have steam...

    which type of humidfier do you have steam injection or infared heat lamps with water tray.A suggestion for either system is filter the water or chemical treatment.
  12. Thread: my new 'toys'

    by echomech
    Replies
    29
    Views
    8,883

    Where is this type of junk allowed PVC on exhuast...

    Where is this type of junk allowed PVC on exhuast and what are the water connections on the water heater for a Stove.and the electrical wires OMG . I work in NYC and you do work like that and you are...
  13. Replies
    54
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    5,331

    All on web site alot worse than just dental . now...

    All on web site alot worse than just dental . now happy i left 94 2 years ago that is crazy.
  14. Thread: tx valves

    by echomech
    Replies
    3
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    1,234

    will not open charge in bulb is force which opens...

    will not open charge in bulb is force which opens tev
  15. Thread: leak testing

    by echomech
    Replies
    11
    Views
    1,247

    When leak testing compressor after servicing say...

    When leak testing compressor after servicing say valve plates , unloaders, any componet in compressor which way is the proper technique to use . pulling vaccum or pressurized with nitrogen. had a...
  16. Replies
    12
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    1,927

    Is this in a heating plant or home . no code for...

    Is this in a heating plant or home . no code for venting steam to out doors in nyc,depends on room square footage and vents or how much the steam will affect the room. Operated steam plants with many...
  17. Thread: UNLOADERS

    by echomech
    Replies
    3
    Views
    617

    Is thier any way besides having low suction and...

    Is thier any way besides having low suction and low discharge to know if unloader is working , and when it's unloading on multiple compressors.
  18. Thread: Oil Return

    by echomech
    Replies
    9
    Views
    1,119

    Check oil regulating valve over time they need to...

    Check oil regulating valve over time they need to be adjusted.Question where did oil go.check eductors mabye restricted.Thinking oil is in bottom of evap. also check heater and pump.
  19. Thread: pumpdown

    by echomech
    Replies
    20
    Views
    2,402

    I'am sorry i agree with jsmjeff if you don't know...

    I'am sorry i agree with jsmjeff if you don't know pump down thier is something wrong here, because then that also means you don't know how simple operating controls work ,or automatc pump down. I...
  20. Replies
    16
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    1,800

    Goto http://www.myprojectteam.com and search...

    Goto http://www.myprojectteam.com and search centrifugal chiller i found the CHEV service manuals and opreation manuals at that site.
  21. Replies
    8
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    807

    Sure do lose refrigerant , but you really need to...

    Sure do lose refrigerant , but you really need to ask why is purge unit operating excessively. has to be in a vacuum to pull in noncondenseables locate the leak and repair it. or somebody used...
  22. Replies
    11
    Views
    2,277

    Ok things keep getting better. This is right out...

    Ok things keep getting better. This is right out of a TRANE manual for water cooled centrifugal chillers.
    1 if water is present in the tubes break vacuum with refrigerant vapor, or circulate water,...
  23. Replies
    11
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    2,277

    Cam s /1990 Thomson-Arco air conditioning &...

    Cam s /1990 Thomson-Arco air conditioning & refrigeration manual. list procedure for liquid charging a flooded evaporator. which could be r-123/ r-11 ,or r-134a. also you are right its a trane 3...
  24. Replies
    11
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    2,277

    Thank you for the help here is the way i did find...

    Thank you for the help here is the way i did find in a old arco book . make sure chilled water and condenser water valves are open and pumps are running (prevents freeze up).Then hook up charging...
  25. Replies
    11
    Views
    2,277

    Can some one please find me the procedure for...

    Can some one please find me the procedure for liguid charging r-123. into a 3 stage centrifugal system with a econominzer.with the system running.


    thanks

    Ed

    [Edited by echomech on...
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