Search:

Type: Posts; User: toptech

Page 1 of 12 1 2 3 4

Search: Search took 0.03 seconds.

  1. Replies
    3
    Views
    572

    55 DAT isn't gonna get it in an active OR. 50F is...

    55 DAT isn't gonna get it in an active OR. 50F is 100 times better, if you can get 47F your a rock star!
    problem with OR'S in my experience are the procedures and the equipment.
    in the rooms,...
  2. Thread: Work Pants

    by toptech
    Replies
    52
    Views
    4,859

    Waiting on my royalty checks;0)

    Waiting on my royalty checks;0)
  3. Replies
    51
    Views
    2,892

    hmm, 3 f superheat proves you have good charge...

    hmm,
    3 f superheat proves you have good charge unless your evap fans are not operating
    compressor pump down tells me the pump is good
    Can we have proper superheat with low mass flow due to bad...
  4. Replies
    18
    Views
    1,067

    the pressure test imho is protection from joint...

    the pressure test imho is protection from joint failure when your not onsite. Its a controlled disaster test and ensures you bonded the pipe properly at your highest operating pressures. Added bonus...
  5. Thread: Anyone else?

    by toptech
    Replies
    7
    Views
    530

    here are some photos header is original coil...

    here are some photos
    header is original coil leak
    next 2 pics are of failed replacement coil.
    Carrier actually put out a mandatory rework adding clamps to the discharge lines on this model. i did...
  6. seems that unit only has an anti recycle timer....

    seems that unit only has an anti recycle timer. but thats for a AUZA and AUDA units
  7. model number seems funky, dont see a Q

    model number seems funky, dont see a Q
  8. Replies
    18
    Views
    1,067

    if your cups are filled and ya pull a 300 micron...

    if your cups are filled and ya pull a 300 micron vac your good to go.
    That said, r410A is pretty wicked when the pipes come apart at 400 psig.
    we all purge nitro when brazing so spend the extra ...
  9. Thread: Anyone else?

    by toptech
    Replies
    7
    Views
    530

    2010 38 APD030 2nd coil failure and labor...

    2010 38 APD030

    2nd coil failure and labor allowance is a joke!!!
  10. Thread: Anyone else?

    by toptech
    Replies
    7
    Views
    530

    Anyone else?

    Loosing their arse with carrier Micro channel coil failures?
    Garbage
  11. Replies
    8
    Views
    703

    Well I have not tried that. I fairly certain...

    Well I have not tried that.
    I fairly certain the compressor starts fully loaded so I did not suspect the unloader was causing the problem. If I'm wrong on that let me know
  12. Replies
    8
    Views
    703

    Nope, this is a 2014 unit and the brackets are...

    Nope, this is a 2014 unit and the brackets are installed. However I did the same job in 2010 on another building at the same location. I'll have install these on that one
    Thank you
  13. Replies
    8
    Views
    703

    Thanks I'm gonna check my email now

    Thanks I'm gonna check my email now
  14. Replies
    8
    Views
    703

    Typical rubber foot thru feet of compressors with...

    Typical rubber foot thru feet of compressors with sleeve and bolt.
    Unit has 2 compressors. Second stage starts normal
  15. Replies
    8
    Views
    703

    New Carrier violent compressor starts

    Happy Dads day to all.
    Carrier 38APD030, brand new install with new AHU.
    1st stage digital scroll on start up snaps or torques wickedly on each start. Its like severe water hammer and the...
  16. Replies
    2
    Views
    372

    Micro_Channel_coils and the proper TXV

    Carrier and Trane have published that permanent bleed T.E.V.'s must be install when using their Condensor's with micro channel coils. Trane specs 30% bleed, Carrier specs 5% bleed.
    I have a york...
  17. Thread: Superheat

    by toptech
    Replies
    2
    Views
    260

    If your measuring compressor superheat copeland...

    If your measuring compressor superheat copeland would be very happy with that number.
    If your evap is running 21f superheat your DA temp is probably high.
    need more info, pressures temps insulated...
  18. Replies
    5
    Views
    389

    • "Bleed port valves are used on RAUJ MCHE...

    • "Bleed port valves are used on RAUJ MCHE systems with fin tube DX evaporators. They have
    an internal port that shunts the refrigerant around the modulating portion of the valve."
    That came from...
  19. Replies
    2
    Views
    247

    Thanks dawg:)

    Thanks dawg:)
  20. Replies
    5
    Views
    389

    Great question, this system has not been started...

    Great question, this system has not been started yet. All new equipment. Line sizing, distributors all sized properly.
    Control strategy is 4 stages based on supply air temperature.
    Again this...
  21. Replies
    2
    Views
    247

    Trane Application guide

    If anyone could share
    SS AGP-012-EN
    thank ya very much..
  22. Replies
    5
    Views
    389

    Preventive TV sizing

    I've got a real head scratcher here.
    It's one of those " I understand the logic but completely don't understand your logic" type of head scratches.
    Air conditioning application
    R410a
    Split...
  23. Thread: WSHP DP switch

    by toptech
    Replies
    14
    Views
    624

    wow thats low DELTA-PRO PRESSURE SW. 1-10PSI is...

    wow thats low
    DELTA-PRO PRESSURE SW. 1-10PSI is all i buy. that boundle your working has a spec for pressure drop. you should be able throttle flow to achieve a 2-5 PD and use the swich you have....
  24. Replies
    18
    Views
    994

    Yaskawa for me support is great free software...

    Yaskawa for me
    support is great
    free software avail online to commision any of there drives with no special cables required:)
  25. Replies
    23
    Views
    1,239

    wow

    wow
  26. Replies
    6
    Views
    585

    Looking At suva's velocity chart for 404a we came...

    Looking At suva's velocity chart for 404a we came up with 3/4" for that riser, thank for your link:)
  27. Replies
    6
    Views
    585

    Thank you Twoholing:cheers:

    Thank you Twoholing:cheers:
  28. Replies
    6
    Views
    585

    404a beer cooler @ 36F

    404a
    beer cooler @ 36F
  29. Replies
    6
    Views
    585

    suction line piping

    good evening
    Ive attached a sketch of an installation i have to do Saturday.
    single trap at evap do the job? This is the only route i have.
    Thoughts would be appreciated
    Thank you
  30. Replies
    30
    Views
    5,536

    i love this board. Klove sloved my issue before i...

    i love this board. Klove sloved my issue before i even asked!! thanks
  31. Thread: 9mm or not?

    by toptech
    Replies
    4,843
    Views
    321,413

    The the state of Illinois, ugh To read out loud...

    The the state of Illinois, ugh
    To read out loud that the state of Illinois does not allow it's citizens to use deadly force against criminals who try to do us harm is infuriating. My choice for...
  32. Replies
    204
    Views
    33,265

    have you purchased the recharable batts and...

    have you purchased the recharable batts and charger?
    do they hold up?
  33. Replies
    53
    Views
    26,159

    ISCEON MO99 compressor approval The Copeland...

    ISCEON MO99 compressor approval
    The Copeland Brand Product team has approved ISCEON
    MO99 for use in Supermarket applications using Discus
    Brand compressors
    See 93-11 document located at...
  34. Replies
    5
    Views
    899

    Ive seen the reznor set up fairly simple and...

    Ive seen the reznor set up
    fairly simple and they use an FX controller for all unit operation.
  35. Replies
    53
    Views
    26,159

    Copeland states it voids their compressor...

    Copeland states it voids their compressor warranties. united refrigeration has literature they hand out regarding this subject.
    i did not know it had a 10F glide, thats a deal breaker for me.
  36. Replies
    12
    Views
    1,526

    I have interpted the 20 superheat as a guide line...

    I have interpted the 20 superheat as a guide line to keep you out of trouble.
    It would be very difficult to maintain no lower than 20 on a fixed orifice close coupled residential split system. IMHO...
  37. Thread: TXV problem

    by toptech
    Replies
    7
    Views
    1,250

    Think of it as the "cartridge" on a sporlan...

    Think of it as the "cartridge" on a sporlan valve.
    Each cage has a tonnage rating for a universal valve body.
  38. Replies
    0
    Views
    691

    Reznor RDDA-3. Circuit board failures

    Rdda-346-h700
    3bfk134zk13n788c
    Have a customer who asked why the He keeps burning up the same resistor on mulitple circuit board. Said it 1 stage heating fails and its always a melted resistor....
  39. Replies
    7
    Views
    892

    I did a little institutional kitchen work All...

    I did a little institutional kitchen work
    All the ovens had nice stainless tanks that produce the steam for cooking
    The thought of process or comfort steam piping proving the steam to cook is...
  40. Replies
    1
    Views
    483

    Not so urgent anymore!

    Set it Monday, wind storm tuesday, piped it wednesday(not):9
  41. Its 410A :(

    Its 410A :(
  42. Kind of Urgent, Carrier 38apd and bleed port txv's

    Is it a big deal ordering a valve with a bleed port?
    Set new units yesterday{condensor and a sterling mua unit with a dual circuit evaporator) and no expansion valves were shipped.
    Carrier tells me...
  43. Replies
    15
    Views
    1,434

    u got mail

    u got mail
  44. Replies
    15
    Views
    1,434

    Not home now but I'll email later tonight

    Not home now but I'll email later tonight
  45. Replies
    141
    Views
    18,355

    Local 597, Chicago

    Local 597, Chicago
  46. Replies
    22
    Views
    4,245

    oK iLL GO EASY ON YOU! Any info on the unit...

    oK iLL GO EASY ON YOU!
    Any info on the unit type?
    model?
    color?
    anything?
  47. Replies
    17
    Views
    2,132

    I would say the biggest attribute you need to...

    I would say the biggest attribute you need to posses is the ability to sell yourself.
    Your personality will go much further in your fist interview than your experience. Not all trade school grads...
  48. Replies
    9
    Views
    1,152

    Thanks guys, I have all the docs for the Fx...

    Thanks guys,
    I have all the docs for the Fx line. I will read up on the fx 16 and display.Only hitch would be software cost, and cables.
    Jci unts are a no brainer and makes sense, just gettin a...
  49. Replies
    6
    Views
    851

    What books do you have? Come on man, could you...

    What books do you have?
    Come on man, could you be any more vauge?
    How can we help if you dont even know what you want?
    Model number would get you 10 responses, you could make up the valve yourself...
  50. Replies
    9
    Views
    1,152

    AHU controls upgrade

    I have to quote out a new control system for a single pipe chilled water AHU.
    Electric duct heat, single stage
    Chilled water pump
    3way chilled water valve
    oa|ra actuator
    I was getting ready to...
Results 1 to 50 of 585
Page 1 of 12 1 2 3 4
Comfortech Show Promo Image

Related Forums

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