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  1. Thread: Coolsavers

    by Texasgrand
    Replies
    5
    Views
    852

    I understand these tools tested most accurate. I...

    I understand these tools tested most accurate. I would also be interested if there are equivalent or better tools out there. New tools come out every day.
  2. Replies
    20
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    17,579

    Everyone must have the EPA 608 Certification....

    Everyone must have the EPA 608 Certification.
    Some companies want ICE Certification for 1 year entry level techs.
    Many want NATE for 2 year+ techs.
    RSES also has a certification.

    Certification...
  3. Replies
    8
    Views
    3,272

    I've been involved in buying and selling a few...

    I've been involved in buying and selling a few businesses. If the company has sales under about 1 mil, the owner is basically the company and could go after the customers after the buy sell...
  4. Replies
    11
    Views
    1,040

    Testo 556 vs 550

    If I were going to buy digital refrigerant analyzers for all the techs, what would I buy. Example the Testo 556 is well over $1000, more than the Testo 550. Both provide simutaneous pressures,...
  5. Replies
    11
    Views
    1,040

    Which Gauge set and why?

    Which Refrigerant analyzer / gauge manifold, and why.
    What tools and features are essential in a gauge/manifold for efficient and accurate charging and diagnosis of residential or small commercial...
  6. Replies
    14
    Views
    5,762

    We used a trash pump mounted on a two wheeler...

    We used a trash pump mounted on a two wheeler with appropiate fittings, valves and quick connects. Add a plastic barrell.
  7. Replies
    17
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    1,955

    I'll take a look, thanks

    I'll take a look, thanks
  8. Replies
    17
    Views
    1,955

    Dallas vendor?

    I give up. Can anyone suggest a Dallas Tx vendor that can fix me up with a working solution?

    USB to RS485
    Ethernet to RS485
    PCMCIA to Rs485
  9. Replies
    17
    Views
    1,955

    Thanks for all the help. I'm still...

    Thanks for all the help.

    I'm still investigating all of these.

    I did get the Vista drivers for the Keyspan USB x 232 from Tripplite.com I connected a 232 x 485 converter made by 3One Data...
  10. Replies
    17
    Views
    1,955

    Thanks for the help. Looks like I have several...

    Thanks for the help. Looks like I have several options. I will post my progress.
    Thanks again
  11. Replies
    17
    Views
    1,955

    None of our laptops have serial ports.

    None of our laptops have serial ports.
  12. Replies
    17
    Views
    1,955

    Vista Laptop USB RS 485 Converter

    I can't get a USB x RS485 converter to work on a Vista laptop. I've tried Belkin and another brand. Anyone have any suggestions?

    I've also tried a TCP IP x RS485 converter (BF-430) without...
  13. I saw a new system this week that attaches to a...

    I saw a new system this week that attaches to a rooftop unit with magnets, covering the condenser coil. It has a wet pad with spray heads and a dry prefilter. The theory is the water evaporates...
  14. Replies
    10
    Views
    3,762

    Drill test well? If this is a commercial...

    Drill test well?
    If this is a commercial development the civil engineer has probably already drilled geo test holes to determine subsurface soil types for structural design. You are looking for...
  15. Replies
    23
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    1,815

    My opinion, most of the industrial and large...

    My opinion, most of the industrial and large commercial users already have meters that will record time of use.

    The real reason for deploying smart meters on small commercial and residential...
  16. Replies
    38
    Views
    2,468

    Be happy to share when my deal is locked down. ...

    Be happy to share when my deal is locked down. Send me an e-mail, it will be a few weeks.
  17. Replies
    38
    Views
    2,468

    Ok I ordered an industrial PLC front end with a...

    Ok I ordered an industrial PLC front end with a graphical display, software, built in Ethernet, BacNet and Modbus. Controllers are BacNet or Modbus. Modbus controllers have a drag and drop...
  18. Replies
    23
    Views
    1,815

    Food for thought..... The power companies are...

    Food for thought..... The power companies are spending billions to deploy smart meters. Why? Open market, on peak power, mid day summer, can go for $100. KWH Off peak nights in west Texas with...
  19. Replies
    7
    Views
    1,263

    It's definatly a result of overheating and the...

    It's definatly a result of overheating and the refrigerant oil. We've flushed at least 40 units over 2 years from one manufacturer.
  20. Replies
    22
    Views
    3,288

    We like full maintenance because we can do most...

    We like full maintenance because we can do most of our work in the off-season. We treat the equipment like we own it and after several years have few unexpected breakdowns. The margins are and...
  21. Replies
    23
    Views
    1,815

    I saw this a few weeks ago and signed up for...

    I saw this a few weeks ago and signed up for e-mail updates but I have not received any.

    It looks like they plan to tie this in with smart meters when they are deployed and you will have a real...
  22. Thread: CO2

    by Texasgrand
    Replies
    34
    Views
    1,647

    This is essentially what engineers are doing with...

    This is essentially what engineers are doing with the chiller beam systems we're starting to see.
  23. You can probably drop the temp to about 5 degrees...

    You can probably drop the temp to about 5 degrees above the dewpoint. One concern would be reducing the airflow significantly. The fan is designed for open air, no restriction or friction loss. I...
  24. Thread: CO2

    by Texasgrand
    Replies
    34
    Views
    1,647

    Cutting edge schools are using 100% outside air...

    Cutting edge schools are using 100% outside air energy recover ventilators with displacement air distribution. Exceeding ASHRAE 62 for fresh air by 30%
  25. Replies
    38
    Views
    2,468

    1: New Construction? Existing? Existing for now....

    1: New Construction? Existing?
    Existing for now. New construction soon,

    2: If existing..does it have any DDC equipment?If so... Is it Staying? Going? Dont know the options yet?
    No existing...
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