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Type: Posts; User: dlove

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  1. Replies
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    enough said.:gah: I would really be careful...

    enough said.:gah:

    I would really be careful and cross your T's and dot your I's.

    What they can afford is not your problem. But it will be your problem, if it dont work right.

    Good luck
  2. Replies
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    I have seen more issues with those small pumps,...

    I have seen more issues with those small pumps, so i try to stay away. they will fail or get clogged.
    how will you service this pump?

    Plus the local codes with PVP in plenum or walls may not...
  3. Replies
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    139

    On a CW system, keeping the CW valve input to...

    On a CW system, keeping the CW valve input to maintain supply discharge temp is the way i have it.

    If it was a DX system, controlling compressors by return air to maintain supply discharge temp...
  4. Replies
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    325

    :cheers:

    :cheers:
  5. Thread: Kills me....

    by dlove
    Replies
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    1,020

    whatever you do, don't cut the red wire!!! BOOM!

    whatever you do, don't cut the red wire!!! BOOM!
  6. Thread: Good help

    by dlove
    Replies
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    2,612

    Smart techs ALWAYS add an inspection door...

    Smart techs ALWAYS add an inspection door :whistle:
  7. Replies
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    3,077

    if the belt aint broke don't fix it...

    if the belt aint broke don't fix it...
  8. Replies
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    338

    I installed this and its great, cheap easy to set...

    I installed this and its great, cheap easy to set up. need DSL. it will email me alerts to my phone and I can view all that I have connected over the web anywhere.
    ...
  9. Replies
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    If your not happy, you have to go. Your ambition...

    If your not happy, you have to go. Your ambition is driving your desires. You have two choices, talk to the current company and express your desires and see if they are willing to grow on the...
  10. Replies
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    how big in the bypass? don't need to bypass more...

    how big in the bypass? don't need to bypass more than 2/3. Having the bypass that close is no good. Plus cant do much with out static readings. is this barometric damper? how much cfm are we talking...
  11. ^^^ I agree.. I just did a 4 story hotel with...

    ^^^ I agree..

    I just did a 4 story hotel with continuous exhaust.

    We have Installed a mechanical space conditioning system w/recovery wheel (ERV) for the common main floors to maintain a...
  12. Replies
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    now that you took all the ice away, hows it going...

    now that you took all the ice away, hows it going to get cold? :toetap:
  13. Replies
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    do you have the latest drivers and java updates?

    do you have the latest drivers and java updates?
  14. Replies
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    how much time is in a boat load?

    how much time is in a boat load?
  15. Replies
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    pressure in a 1/4 inch or a 1/2 inch is still the...

    pressure in a 1/4 inch or a 1/2 inch is still the same pressure.

    If you looking to control response time, thats done through the PIDs.
  16. Replies
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    first I agree, get a static sensor, no and ifs or...

    first I agree, get a static sensor, no and ifs or butts. If the sensor is on the drawings, and not in the scope they still need to install it. If the sensor is not on the drawings but , in the scope...
  17. Thread: Fan Curve Help

    by dlove
    Replies
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    582

    call for full steam than check you steam traps,...

    call for full steam than check you steam traps, clean them out. make sure your not flooding the coils

    on the sheets you shown it says test speed 80 hz. did they make that design speed?
  18. Thread: Fan Curve Help

    by dlove
    Replies
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    582

    you need to know your actual rpm's, can you take...

    you need to know your actual rpm's, can you take them yourself?


    I would also get yourself a ductulator chart, a manometer and check SP in different places and based on ducts sizes what type of...
  19. Replies
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    sounds like bypass damper and fire damper set up...

    sounds like bypass damper and fire damper set up of those damper stopped working that would explain alot
  20. one more tid bit coils have a design flows. GPM....

    one more tid bit coils have a design flows. GPM.

    you cant balance a coil with out these,
  21. Replies
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    When a company puts a tech on a job, they should...

    When a company puts a tech on a job, they should know that techs capability. I don't send my 1 year mech to pull a compressor. I send him along with my 5 year Tech. Companies who do that, set...
  22. Thread: Fresh-Air.

    by dlove
    Replies
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    1,432

    I love fresh air, when i can use it. But when its...

    I love fresh air, when i can use it. But when its VERY hot or VERY cold, I will shut down my oa to help with the unit. The only problem with that (like i said before) engineers size the units with...
  23. Thread: New to HVAC

    by dlove
    Replies
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    607

    do yourself a favor check the rest of the unit,...

    do yourself a favor check the rest of the unit, HX and coils. at 21 yrs old. its time and may not be worth fixing.

    well, Im sure its not worth fixing.

    Good luck!
  24. Thread: Fresh-Air.

    by dlove
    Replies
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    1,432

    In commercial, Mechanical engineers will size the...

    In commercial, Mechanical engineers will size the equipment and duct work with outside air requirements in their calculations.

    residential 99% dont
  25. Replies
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    Long long time ago i was hire to work for an...

    Long long time ago i was hire to work for an HVAC company. it was the start of summer great pay for entry level with the promise to learn and grow. Got stuck doing refractories on boilers. When...
  26. Replies
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    so the Boiler room is isolated from the rest of...

    so the Boiler room is isolated from the rest of the building. The house air plays no part in supplying air to this room, as it should be.

    As for the rest of the building you need to check a few...
  27. Replies
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    Here's one for the file. This unit was...

    Here's one for the file.

    This unit was operating. Roll out switch OK. The tenant said they had a regular pm performed but was not told they had an issue :gah:

    I got the new contract :grin2:
    ...
  28. Replies
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    1,522

    Small holes in HX can they kill you.

    Does small cracks in Gas fired RTU heat HX allow carbon monoxide into the supply air?

    IF, The same blower pressure that pushes air through the duct work and out the registers also pushes against...
  29. Replies
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    Keep your mouth shut, Be on time, Ask questions...

    Keep your mouth shut, Be on time, Ask questions when the time is right, leave work when its time- Its not a 9-5 job unless they say no OT.

    If you don't know something ask! and you have Google.
    ...
  30. I have a York Screw, two compressors. Last summer...

    I have a York Screw, two compressors. Last summer started it up and comp 2 would trip on High oil Differential.
    Changed filter, etc..no help....When i stated the comp 2 i would hear a snap, but not...
  31. Thread: Samsung splits

    by dlove
    Replies
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    1,318

    Samsung splits

    How are he Samsung mini-splits, I was asked how are they and i never really worked with them. :putergreet:

    These will be ceiling mounted, 4 off one condenser.
  32. Replies
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    I agree, the coils you have problems with need to...

    I agree, the coils you have problems with need to be blown out. If they are real bad you may need to pull them out and really clean them. You are just now talking to a chemical company and did not...
  33. Thread: Humidifier fail

    by dlove
    Replies
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    3,524

    I need an On/off switch like this for a job, do...

    I need an On/off switch like this for a job, do you have a part # :putergreet:
  34. 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...
  35. Thread: Fire dampers

    by dlove
    Replies
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    2,012

    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...
  36. hes not coming back:whistle:

    hes not coming back:whistle:
  37. Replies
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    1,153

    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...
  38. Replies
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    1,153

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

    it is designed to operate between 15 ~ 52°C

    If you expect the the ambient temperature to exceed either one you need to factor that in
  39. Replies
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    15,446

    Hire a tech

    Hire a tech
  40. Replies
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    1,737

    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...
  41. 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!...
  42. Replies
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    780

    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.
  43. Replies
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    1,226

    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...
  44. Replies
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    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.
  45. Replies
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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...
  46. Replies
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    2,989

    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...
  47. Replies
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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.
  49. Replies
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    783

    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...
  50. Replies
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    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.
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