Search:

Type: Posts; User: yp5

Search: Search took 0.00 seconds.

  1. I just selected, Honeywell stand-alone EXCEL...

    I just selected, Honeywell stand-alone EXCEL 50...

    Thanks a lot guys...


    yp5
  2. Thread: Trane vs. Carrier

    by yp5
    Replies
    21
    Views
    2,657

    Poll: Most HVAC Designer's choice I've known select...

    Most HVAC Designer's choice I've known select "TRANE or approved equal"

    Are they equal in all technical means?

    Here is our practice in my workplace:

    We consider, technical evaluation in...
  3. Thread: Humidity problems

    by yp5
    Replies
    4
    Views
    658

    Agree. Re-calculation of the cooling load must be...

    Agree. Re-calculation of the cooling load must be given priority.

    Re-assessment of the building vicinity must be considered.
    How humid is your ambient condition?

    I suggest take an initial...
  4. Replies
    10
    Views
    1,269

    The problem might be the dust accumulation in the...

    The problem might be the dust accumulation in the long run.
    Return air side have greater dust accumulation than supply air side
    which can be visibly observe during duct cleaning.
    Better improve...
  5. Replies
    122
    Views
    8,407

    Be careful next time, too much of that incident...

    Be careful next time, too much of that incident might spoil the contents of your groin....hahaha...:p

    Sometime during 2002, I have heard a case of a janitor that slipped during mopping the floor...
  6. Replies
    2
    Views
    992

    Long span AC Compressor Warranty

    Would anyone agree that if an AC manufacturer indicates a long span of years
    for Warranty on thier AC compressors (Say, rotary-scroll type) would definitely mean that such compressor is reliable or...
  7. Replies
    37
    Views
    4,014

    I would have to agree on you, that is why end...

    I would have to agree on you, that is why end users or consumer suffers in these type of marketing strategy. Should they passed the standards in each localities or countries,They are still hiding...
  8. It is indeed a stand alone DDC there was no...

    It is indeed a stand alone DDC there was no existing BMS on the substation
    since it's (Substation) isolated from any existing building with BMS. It's just a
    changeover control that can be...
  9. Control for back-up AC of a Switchgear (Substation) Room

    Can anyone suggest what type of brand for controls should i consider if
    I'm going to have a 100% back-up cooling of Package AC units in a Switchgear rooms of a substation?

    All of the main supply...
  10. Replies
    5
    Views
    817

    Thanks for the info.:)

    Thanks for the info.:)
  11. Replies
    5
    Views
    817

    No offense made, thanks. :)

    No offense made, thanks. :)
  12. Thread: increse CFM ??

    by yp5
    Replies
    31
    Views
    2,284

    I strongly agree, very well said.

    I strongly agree, very well said.
  13. Replies
    25
    Views
    2,162

    At least your confidence is HIGH :) .. The brand...

    At least your confidence is HIGH :) .. The brand TRANE Use 400CFM per TON. Ask any trane vendor for verification.

    FYI,

    yp5
  14. Replies
    37
    Views
    4,014

    NEC should care....How about the factory wiring...

    NEC should care....How about the factory wiring of those power cabling and AC controls inside the AC unit? What Code and testing method is applicable? Megger testing on factory assembly as the...
  15. Replies
    25
    Views
    2,162

    There is an input data for "Direct exhaust" in...

    There is an input data for "Direct exhaust" in HAP software by carrier, you can
    account your toilet exhaust CFM in that portion of the cooling load. It is within the "Thermostat" inputs. These will...
  16. Replies
    25
    Views
    2,162

    There is an input data for "Direct exhaust" in...

    There is an input data for "Direct exhaust" in HAP software by carrier, you can
    account your toilet exhaust CFM in that portion of the cooling load. It is within the "Thermostat" inputs. These will...
  17. Replies
    13
    Views
    2,504

    Indeed...

    Indeed...
  18. Replies
    0
    Views
    501

    AAC-Autoclave Aerated Concrete?

    All,

    Does anyone has experience installing this type of soundproofing walls?
    The brand was HEBEL Sound barrier, manufactured by CSR in Australia,
    made from non toxic light weight AAC or...
  19. Replies
    37
    Views
    4,014

    So many causes for frequent fuses burn out in AC...

    So many causes for frequent fuses burn out in AC units.
  20. Replies
    37
    Views
    4,014

    I undestand that All NATE Technicians are not...

    I undestand that All NATE Technicians are not equppied with the clauses of National Electrical Code or NFPA 70. But, I'm pertaining to any related mechanical means or root cause of the frequent burn...
  21. Replies
    5
    Views
    817

    EXPAT after Upgrade?

    I just want to ask questions if USA or CANADA
    allows or trust expatriates in designing HVAC
    after acquiring Professional license or having
    the board exam passed?

    Are there many qualified...
  22. Replies
    37
    Views
    4,014

    Paula is right fuses and circuit braekers are...

    Paula is right fuses and circuit braekers are made to protect the equipment and especially the owner (tenants).

    Seek help from qualified AC technicians around your vicinity, Ask for a NATE ...
  23. Replies
    339
    Views
    45,741

    I'm from Manila, Philippines. I'm an abider of...

    I'm from Manila, Philippines. I'm an abider of ASHRAE Standards....
    No one in the whole wide world have the best HVAC practice
    than ASHRAE organization....The genuises of HVAC are there..

    I owe...
  24. Replies
    13
    Views
    1,390

    I think this should resolve your calculation...

    I think this should resolve your calculation problem...Why not try installing
    a Differential Pressure Transmitter (With Digital Display and manual preset) one sensor should be on the suction of the...
  25. Replies
    6
    Views
    1,164

    Why not try LG Multi-split (Multi-Power system)...

    Why not try LG Multi-split (Multi-Power system)
    The maximum distance from the outdoor units to the branch distributor is up to 50 meters and the maximum distance from branch distibutor to the fan...
  26. Thread: Sweating Duct work

    by yp5
    Replies
    23
    Views
    2,052

    First solution is to insulate the ductworks....

    First solution is to insulate the ductworks. Next, if condensation persist and it's really excessive due to high humidity in your vicinity,consider installing portable dehumidifier to collect the...
  27. Replies
    18
    Views
    1,047

    I agree with mikethemech, The 5 ton capacity for...

    I agree with mikethemech, The 5 ton capacity for package units has a limited
    static pressure. There is no guarantee of cooling effect putting a large capacity of fan into the system. The cooling...
  28. Replies
    25
    Views
    2,162

    Actually Elitesoft CHVAC allows up to 15% safety...

    Actually Elitesoft CHVAC allows up to 15% safety factor.
    This is acceptable but beyond that we can forecast the
    effect of "Short cylcing" due to overcooling of the space
    in a small span of time.
    ...
  29. Replies
    3
    Views
    730

    I am using CHVAC from Elite Software. Friendly...

    I am using CHVAC from Elite Software. Friendly user heat load calculation.

    Here is the link:

    http://www.elitesoft.com/web/hvacr/chvacx.html

    If you are beginner, you can learn everything...
  30. The law of conservation of mass from...

    The law of conservation of mass from thermodynamics is so simple:

    Mass in = mass out

    The very basic equation in Testing Adjusting and Balancing is:

    Return Air + Outdoor Air = Suppy...
  31. Replies
    25
    Views
    2,162

    ACCA-J for Residential, Elite CHVAC for...

    ACCA-J for Residential, Elite CHVAC for Commercial
    TRANE Load express, TRACE LOAD, Hourly Analysis Program (HAP) by Carrier,
    HEVACOMP and the expensive thermal modelling softwares such as wintherm...
  32. Replies
    10
    Views
    1,205

    I Agree with Atmosphere, The budget should be...

    I Agree with Atmosphere, The budget should be reviewed and revive.
    Specifically, if compliance to the recommended Air Changes per ASHRAE-62.1-2004 shall prevail. Incompliance means poor ventilation...
Results 1 to 32 of 36
Comfortech Show Promo Image

Related Forums

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