Search:

Type: Posts; User: chiller-thriller

Page 1 of 2 1 2

Search: Search took 0.03 seconds.

  1. Replies
    13
    Views
    1,036

    True enough, hadn’t thought that far

    True enough, hadn’t thought that far
  2. Replies
    13
    Views
    1,036

    Do you think that discharge piping might be a...

    Do you think that discharge piping might be a problem, maybe turn the volute while you have it apart?
  3. Replies
    13
    Views
    1,036

    That piping is something else! did you have to...

    That piping is something else! did you have to work that out yourselves? never did a Tri-Star
  4. Replies
    41
    Views
    3,019

    Isolate the filter, the regulator can be removed,...

    Isolate the filter, the regulator can be removed, no need to pull refrigerant
  5. A piece of 4” pipe, threaded at both ends. Drill...

    A piece of 4” pipe, threaded at both ends. Drill holes in one cap, silver solder 5/8” flare adapters, attach a “dip” tube to one, reaching to bottom of pipe. Two layers of armaflex around a five...
  6. Replies
    7
    Views
    872

    What’s going on, what’s the concern?

    What’s going on, what’s the concern?
  7. Replies
    7
    Views
    1,268

    Smardt/ tt400 compressor

    Replaced PWM module a month ago, original was not showing pressures or temperatures properly, no LEDs burning on backplane board, replaced module, powered up, LEDs lit properly, pressures reading...
  8. Replies
    42
    Views
    9,397

    Very nice, you had a good teacher

    Very nice, you had a good teacher
  9. Replies
    14
    Views
    2,494

    CGAM with waterside economizer, year round cooling

    CGAM with waterside economizer, year round cooling
  10. Replies
    4
    Views
    1,147

    Thanks, again

    Thanks, again
  11. Replies
    4
    Views
    1,147

    Thanks, jayguy. Will it be more noticeable at...

    Thanks, jayguy. Will it be more noticeable at high load, or low load?
  12. Replies
    4
    Views
    1,147

    Carry-over/ overcharge

    How does one identify carry-over or overcharge when working on a CVHF chiller?
  13. Replies
    20
    Views
    7,790

    Lacquer thinner all the way.

    Lacquer thinner all the way.
  14. Does anyone have one that hasn't had...

    Does anyone have one that hasn't had failures?That would be something to study.
  15. Replies
    7
    Views
    3,631

    There is a vane position switch upgrade.

    There is a vane position switch upgrade.
  16. Inside the oil tank is a flared coupling, if this...

    Inside the oil tank is a flared coupling, if this connection is not right, the slide valve can't back off properly.
  17. Replies
    12
    Views
    7,094

    Cool pix. How did the flange change out go? Gotta...

    Cool pix. How did the flange change out go? Gotta love tight spaces.
  18. Replies
    11
    Views
    7,110

    Glycol in chillers

    You lose approximately 25% of your heat transfer rate in a 50/50 mix. You're gonna run lower suction pressure, or higher head pressure, equipment needs to be selected for expected fluid...
  19. Replies
    36
    Views
    6,349

    L.P. Recovery

    We usually tee into the purge unit on enough tanks to catch what we figure is left, running condensed liquid back to the tanks, isolating the purge from the chiller, works great.
  20. Replies
    31
    Views
    11,263

    suction pressure comm loss

    Try replacing the cable, or swapping the cable to see if the diagnostic follows.
  21. Replies
    26
    Views
    5,523

    teardown tools

    That's the one, Thanks. Any new ones? How about gantries? We are converting two CVHE100 chillers, tight room, gonna be a challenge. I'll try to post pix, if I can figure that out, again. Thanks again...
  22. Replies
    26
    Views
    5,523

    chiller teardown tools

    Some time ago, we posted some pictures of tools we'd made for taking apart chillers, I'm searching for the posts but can't find them, anyone know where to find those pics? Cheers!
  23. Replies
    11
    Views
    3,378

    cond tube sheets

    We have a customer, with some RTHD's and RTHC's, they've purchased some APEX3 coating and sacrificial anodes from their water treatment provider, and want us to apply it/them. I've got the info from...
  24. Replies
    11
    Views
    3,378

    cond tube sheets

    I'm wondering if and how you guys treat condenser tube sheets, do you sandblast, what repair products you prefer, what doesn't work?
  25. Replies
    11
    Views
    3,378

    Tube sheets

    How carried away do you get with tube sheet corrosion? I wonder if I'm over doing it? What kind of problems have you had?
  26. Replies
    14
    Views
    3,408

    low temp rtaa

    Have I told you guys about this skating rink I've been babysitting? An RTAA 125 cooling 50/50 glycol to 17*, ambient temps as low as -30, with wind. Before xmas, I was resetting low suction press cut...
  27. absorbers

    Just removed solution from our last Trane B2D-4, last fall. The economizer heat exchanger tubes were plugged, customer put in d/x coils and air cooled condensers. There are still a couple at a mill...
  28. Replies
    16
    Views
    4,326

    RTHA rigging

    How do you guys lift the compressors, we have two RTHA's with leaks at oil tank flange, we lifted the rebuilt compressors at the two recommended points, wondering if we should have supported the...
  29. Replies
    16
    Views
    5,530

    loop volume

    How many feet of what diameter of what type of pipe? length x area=volume, volume of heat exchangers, etc.
  30. Replies
    16
    Views
    5,530

    chiller cycling

    What is the volume of your chilled water loop, it should take at least five minutes for the water to get around the loop.
    The volume of water divided by the flow rate, should equal more than five....
  31. Replies
    63
    Views
    28,094

    R-123 article

    Hey, chillerwhisperer, I'd sure like to read that article.
    Low pressure forever!
    Trane, all the way!
  32. Replies
    5
    Views
    1,806

    ORB

    The fitting you mention is called "o-ring boss" or ORB. It allows you to thread the fitting in to the position you want, then you tighten the nut down, squeezing an o-ring into a bevelled seat. I...
  33. Replies
    12
    Views
    3,223

    chiller forum

    Today is the first time I've seen this. I have some stuff to pass by you guys, given, the number of machines you must see. I would like to pass on some of my experiences, up here. :D
  34. Replies
    32
    Views
    14,669

    Chiller School

    For me, there's been no school, like the School of Hard Knocks. When I started, I had a couple of great teachers, who were willing to show me the ropes, and I was very eager to learn. But, the most...
  35. Replies
    8
    Views
    4,308

    Tonrac

    Didn't you guys see my pics of an old Tonrac? We changed one out a few years back, the other still sits there. My first chiller call out, R113 chiller at atmospheric pressure, and a huge puddle of...
  36. Replies
    9
    Views
    1,984

    rtac isolation valves

    if you overtorque (100 ft/lbs,criss-cross), it will leak from the stem, once you have, its too late
  37. Replies
    6
    Views
    3,325

    cvhe overload

    Had one once, PNL695, would trip overload, almost everyday, would go, reset, start up, test equipment out, nothing. Then, one day, I was there 45 minutes instead of 30, just packed up, walking away,...
  38. Replies
    28
    Views
    12,933

    back ward condenser fan

    Does the fan go the right direction when it starts alone or simultaneously with the other fan? If so, then your condenser is plugged between the layers. You need to remove the top, and split the...
  39. Replies
    11
    Views
    4,661

    Tube sheet erosion

    Belzona has metal replacing products and procedures to fix that. Not cheap, lots of prep. Have not tried it, procedures require grit-blasting.
  40. Replies
    50
    Views
    10,810

    vane pulling tool

    Here's a puller we made last winter, worked great. Just what you need, another piece of steel to carry upstairs, worth it, some of those gummed up ones can be tough.
  41. Thread: CH531

    by chiller-thriller
    Replies
    16
    Views
    3,548

    Is your control transformer fed from phases A and...

    Is your control transformer fed from phases A and B. This will generate a momentary power loss diagnostic.
  42. Replies
    24
    Views
    4,747

    motor terminals

    have you checked the motor terminal connections, if they're loose or making poor contact, these kind of trips will occur.
  43. Replies
    7
    Views
    5,604

    locked up purge unit

    What does that mean? Can you fix it? Does the customer plan to do with the chiller? keep it? scrap it? The new Earthwise purge puts recovered refrigerant back into the chiller, pretty cool.
  44. Replies
    17
    Views
    4,657

    windmilling fans

    Have you tried cleaning your condensers? Think about it(been through it). If you have a plugged condenser (split condenser), idle fans windmill more quickly as running fans try to do the work.
  45. Replies
    19
    Views
    3,580

    rtaa phase imbalance shutdowns

    Have you checked the motor terminal connections? Are the contactors ok? Poor contact in the motor's power supply will cause these shutdowns. Look for discolored copper and/or carbonand clean it up.
  46. Replies
    4
    Views
    1,249

    Thanks jayguy, you know, as I typed it I knew...

    Thanks jayguy, you know, as I typed it I knew that was the answer, besides like you say, he can carry up the nitrogen. Thanks, again.
  47. Replies
    4
    Views
    1,249

    One of our guys recently found a leak; recovered...

    One of our guys recently found a leak; recovered the gas (134a); made repair; had vacuum below 900 microns; then after a vac pump oil change; introduced a couple 3/8 hoses of air(between pump and...
  48. Replies
    5
    Views
    1,091

    We have a Trane Evacupak, we bought it many years...

    We have a Trane Evacupak, we bought it many years ago. We've rebuilt the pump a couple times, its big and bulky, but with the proper know-how, it works well. What are you guys using?
  49. Replies
    20
    Views
    12,660

    http://i144.photobucket.com/albums/r182/Robdupuis/...

    http://i144.photobucket.com/albums/r182/Robdupuis/RamadaMarlborough090606002.jpg

    http://i144.photobucket.com/albums/r182/Robdupuis/RamadaMarlborough090606001.jpg
    ...
  50. Replies
    10
    Views
    1,156

    What do you like to do with your time off? ...

    What do you like to do with your time off? http://img443.imageshack.us/img443/8348/lfcp101406001gw5.jpgThis is my Happy...
Results 1 to 50 of 89
Page 1 of 2 1 2