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Type: Posts; User: dlove

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  1. Replies
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    does the customer have Ivu? if so you can do 90%...

    does the customer have Ivu? if so you can do 90% on line. just need the web link...but if they dont ,,yeah you had to buy everything..a lot of money to hook up to one unit. don't make sense. How big...
  2. Thread: Fire dampers

    by dlove
    Replies
    11
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    335

    Things must be slow..Commercial drop ceiling?...

    Things must be slow..Commercial drop ceiling? ceiling diffusers with fire dampers were used in buildings when the ceiling were fire rated. I remember they used to lay fire rated panels over light...
  3. hes not coming back:whistle:

    hes not coming back:whistle:
  4. Replies
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    328

    because it most likely is equipped with controls...

    because it most likely is equipped with controls to handle cooling a room like a server when you have low ambient temps, at 15C if you dont have the proper controls your condensor will freeze up at...
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    328

    it is designed to operate between 15 ~ 52C ...

    it is designed to operate between 15 ~ 52C

    If you expect the the ambient temperature to exceed either one you need to factor that in
  6. Replies
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    6,362

    Hire a tech

    Hire a tech
  7. Replies
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    639

    It depends, do you plan on running this system...

    It depends, do you plan on running this system 24/7 ? if not keep it simple Gas pack with economizer. min outside air and you will pressurize.

    if you don't have gas, Straight air air with...
  8. hit the coil with a temp gun top middle bottom. ...

    hit the coil with a temp gun top middle bottom.

    But it would help you to know the size, fins per inch, inlet pressure/outlet. Airflow, RAT,

    also is the coil CLEAN!...
  9. Replies
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    407

    i take the doors off and pull the return end...

    i take the doors off and pull the return end panel off and use the doors to cover the return opening.
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    463

    before offering your opinion understand what your...

    before offering your opinion understand what your looking at. Ask to see the mech plans. if they don't have them find someone who understands this design.

    also do some research.. the system may be...
  11. Replies
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    3,167

    first place i look when i get to my room is ...

    first place i look when i get to my room is check the filters...when i traveled i found more clogged filters than i can count...I would take them to the front desk.
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    two way valves off a primary loop with a bypass...

    two way valves off a primary loop with a bypass to control water temp.

    If the pressure drops that much when the pumps backs off to open the PRV your not maintaining proper pressures. I would...
  13. Replies
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    What are your pressures ? and what are your...

    What are your pressures ? and what are your relief pressures set at. What is your PRV set at. Do you see a level in the sight-glass on your expansion tank? What is your city water pressure ?

    the...
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    i use a two plastic containers i get from Polaris...

    i use a two plastic containers i get from Polaris Labs, http://polarislabs.com/what-you-test/complete-test-list/?lang=en
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    check to see you have min outside air open.

    check to see you have min outside air open.
  16. Replies
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    417

    Angle brackets bolted the rafters, rod to...

    Angle brackets bolted the rafters, rod to kindorf, hang the unit first, hang the drain pan from the kindorf. This way if someone needs to get to the unit they can move the drain pan easy. Make sure...
  17. Replies
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    731

    model # Air only or heat pump? Sometimes its...

    model # Air only or heat pump?

    Sometimes its best to reclaim, check for leaks and recharge with virgin 22. checking super heat and sub-cooling.

    plus its 25+ years old. May not be worth it.
  18. Thread: Carrier VVT

    by dlove
    Replies
    13
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    1,119

    if you turn the rotary to F what does it say on...

    if you turn the rotary to F what does it say on #2 ? if it says off , the slaves Setback/comfort program is disabled and it will follow another program from another device. if it says ON the slave...
  19. Thread: Carrier VVT

    by dlove
    Replies
    13
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    1,119

    is the monitor stat set up correctly ? The...

    is the monitor stat set up correctly ? The monitor stat is what sets the times for setback-Occ/unocc.
  20. Replies
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    1,250

    A long time ago, i started to do installs, only...

    A long time ago, i started to do installs, only installs on weekends and days off. soon i was doing two a month. expect no sleep, long days. after a year i picked up a small office building. One man,...
  21. Replies
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    1,143

    that's what i think, you really need to do a heat...

    that's what i think, you really need to do a heat calculation. You need to figure in your exhaust hoods, makeup air, coolers etc. Mini-splits are not designed to handle the load you will have. Don't...
  22. Replies
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    1,143

    when you say How many? is this going to be...

    when you say How many? is this going to be another store and what will you be selling.

    not enough info
  23. Replies
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    I would List every piece of equipment you are...

    I would List every piece of equipment you are servicing. Understand the manufactures recommend PM. The min is 1 summer start-up Full PM. Mid-season inspection, and winter start-up. Of course this...
  24. Thread: Air filters

    by dlove
    Replies
    8
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    1,102

    AIR IS EVERYTHING the more efficient a filter is...

    AIR IS EVERYTHING the more efficient a filter is the higher the static will be, as its gets dirty static rises restricting air movement. before spending $ on expensive filters understand how it...
  25. add reheat to existing system, when RH climbs,...

    add reheat to existing system, when RH climbs, system comes on and reheat engages. you can dry the air and maintain temp, you need to get a stat for humidity control.:.02:
  26. Replies
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    465

    There is a career as a maintenance engineer. I...

    There is a career as a maintenance engineer. I say continue to gain knowledge and start looking for work in larger buildings, where you can learn about controls, chillers, pumps, etc...finding good...
  27. it really depends on the tenant you are looking...

    it really depends on the tenant you are looking for or you will attract. is this a class A-B- or C building?

    Might want to look up some standards like from BOMA..

    but any where from 30 btus...
  28. Thread: Movincool

    by dlove
    Replies
    2
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    312

    pretty sure its 10ft max, also for the return.

    pretty sure its 10ft max, also for the return.
  29. Replies
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    what makes you think they under bid. Was the bid...

    what makes you think they under bid. Was the bid apples to apples? what margin does your company expect. I will venture to say many facility managers have no clue what's needed for there HVAC. so...
  30. isolate, drain and make repairs ...FLUSH!....and...

    isolate, drain and make repairs ...FLUSH!....and refill + chemicals...and your ok..no big deal
  31. Replies
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    if one filter is good, isn't two better! :whistle:

    if one filter is good, isn't two better! :whistle:
  32. Replies
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    2,521

    that's why i don't do residential any more.

    that's why i don't do residential any more.
  33. Replies
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    1,951

    I bought a modular home a while back, told them i...

    I bought a modular home a while back, told them i didn't want a floor register in the kitchen because of that. my first winter my floor was warm. I found that all they did was drop the flex and...
  34. Thread: Nice gas piping.

    by dlove
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    4,041

    same here, hard pipe out, then flex

    same here, hard pipe out, then flex
  35. Replies
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    Ok ladie, your gonna get a smell for a few days,...

    Ok ladie, your gonna get a smell for a few days, maybe a week, anyway its da cement hardening. so don't worry. Its gonna harden like a rock and no more issues. I did cut you a break cuz i like you,...
  36. Replies
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    yes if there is a short in the comms it will shut...

    yes if there is a short in the comms it will shut that bus down, same if you cross a wire or ground it. have you ever figured out why the controllers short out?

    Im sure these are made to be...
  37. Replies
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    One month? if they are treating you good, stay...

    One month? if they are treating you good, stay where you are and come back in 5 years and we can talk.
  38. Thread: hose leak

    by dlove
    Replies
    23
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    1,290

    made in china :censored:

    made in china :censored:
  39. Replies
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    1,093

    Why do you say its flow? go to the farthest coil...

    Why do you say its flow? go to the farthest coil you have on the loop. Take temp readings, supply/return of the coil, and pressures if you can. Incoming air temp and supply air when the valve is wide...
  40. Replies
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    423

    Im not sure why I even posted this. I knew the...

    Im not sure why I even posted this. I knew the issue, but I thought somehow the HVAC fairy would make it better.

    So yeah the compressor locked up. Not burnt. 14 yrs old. I installed this system,...
  41. for commercial office building, These are perfect...

    for commercial office building, These are perfect temps. don't change a thing
  42. Replies
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    423

    Carrier split heat pump Compressor humming

    14 year old unit. compressor humming, checked cap. 7.5-60uf, found Herm 54.1 fans runs, compressor, No. Changed cap, no good. Was thinking of a hard start. If that don't work, new unit. any...
  43. Replies
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    1,592

    In Mexican restaurants, I think they allow 30%...

    In Mexican restaurants, I think they allow 30% filter bypass so filters stay clean longer. :whistle:
  44. Thread: Carrier VVT

    by dlove
    Replies
    13
    Views
    1,119

    the recovery disk is to help when you have issues...

    the recovery disk is to help when you have issues with the current software, like missing files and such. Its not a complete new Install.
  45. ouch! have fun:gah:

    ouch! have fun:gah:
  46. Thread: Carrier VVT

    by dlove
    Replies
    13
    Views
    1,119

    NO. The best thing you could do is find another...

    NO. The best thing you could do is find another win 95 and install it on another HD and hope it works. You than can try to copy all programs and files to the new hard drive. And HOPE it works.

    Do...
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    http://hvac-talk.com/vbb/showthread.php?73144-wet-...

    http://hvac-talk.com/vbb/showthread.php?73144-wet-bulb-calculation
  48. Replies
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    612

    agree 100% when they say chemicals i don't...

    agree 100%

    when they say chemicals i don't think they mean whats in the city water. Many cites add stuff to the water to fight bugs. otherwise you cant take a hot shower. unless you live close to...
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    you need to go there and see how you will lay it...

    you need to go there and see how you will lay it out. and if you see an issue bring it up to the Arch and home owner and tell them what you need. If i was the home owner and you gave me a bunch of,...
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    not sure , but i will guess the 80% is the VFD....

    not sure , but i will guess the 80% is the VFD. if the VFD exceed 80 % the lag will kick in. when there is a call for heat, and the DP cant make set point or the VFD exceeds 80% the second pump and...
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