Search:

Type: Posts; User: r755jake

Search: Search took 0.01 seconds.

  1. Replies
    13
    Views
    2,277

    dsc

    I normally keep old parts that are in good working order, you know how it goes, the moment you toss it you will need it. Also you might want to check your pcr rev, look on the eprom it will be...
  2. Replies
    13
    Views
    2,277

    Just decommissioned the last three dsc 8500s off...

    Just decommissioned the last three dsc 8500s off a customer's system. Not a bad controller if treated right. If you plan on loading from a lap top you also need a convertor cable rs232 to pcr voltage...
  3. Replies
    5
    Views
    1,015

    Yes. If there is room for the additional changes...

    Yes. If there is room for the additional changes and you know how to program the changes.
    r755jake
  4. Replies
    2
    Views
    1,247

    Right. A 2-10 device on a 0-10 output (from...

    Right.

    A 2-10 device on a 0-10 output (from what I've seen this is the most common problem) you will loose 20% of range ie. output will have to ramp to 2volts b4 anything happens, this may not be...
  5. Replies
    10
    Views
    1,819

    fxdude: I put in my email address in profiles ...

    fxdude:
    I put in my email address in profiles
    thanks for the intrest..

    codewriter:
    thanks for the lead..
  6. Replies
    10
    Views
    1,819

    Amigo thanks for the offer but uless I can find a...

    Amigo thanks for the offer but uless I can find a steady supply with some support I don't know if I'll chase the work. Lots of Companion and N30 stuff I'd like to scrap but I'm up to my eyeballs in...
  7. Replies
    10
    Views
    1,819

    fx

    Yep: Tryed to buy from ABCS and no luck, I think mother blue keeps them under her thumb...still looking.
    But thanks for the info.
  8. Replies
    2
    Views
    918

    This may be problem. AC motor speed is a function...

    This may be problem. AC motor speed is a function of frequency and the number of poles the motor is designed with. A device to vary the voltage will not be satisfactory. Some motors are designed with...
  9. Replies
    8
    Views
    2,032

    Yep. Made by Rosemount, found it on their site,...

    Yep. Made by Rosemount, found it on their site, it's there for exactly that function. I'm going to assume that the secondary loop is monitored, normally a diff pressure xducer and the secondary pumps...
  10. Replies
    8
    Views
    2,032

    I'll take a look at the drawings and give this a...

    I'll take a look at the drawings and give this a think. If you can get a copy of Trane's chiller plant engineering document they have several control strategies for large plants built into their...
  11. Replies
    8
    Views
    2,032

    This system is used for large plants with...

    This system is used for large plants with multiple chillers. It consists of a primary chilled water loop with bypass and pumps a secondary loop with the multiple chillers in parallel. Each chiller...
  12. Replies
    2
    Views
    639

    Thanks, I think I'll give it a try..

    Thanks, I think I'll give it a try..
  13. Replies
    2
    Views
    639

    swftec graphic program generator

    Has anyone tried this configuration generator? Claims to work with havac-pro for custom flexible applications. A tech friend said he saw it mentioned on this forum, but I can't seem to get a search...
  14. Replies
    3
    Views
    2,111

    I've worked with 0-20 phase cut signals on...

    I've worked with 0-20 phase cut signals on Conviron growth chambers converting them to 0-10vdc Belimo valves. It appears you want to go the other way: 0-10 to phase cut, I found the convertors on the...
  15. Replies
    10
    Views
    1,819

    Tridium Niagra / FX40

    Looking for dealer in western Canada for this product (other than JCI). Sounds like it's a good deal. Spent some time on jci product site looking it over. Any advice good or bad?

    p.s. the jci...
  16. Thread: NAE connect

    by r755jake
    Replies
    5
    Views
    819

    NAE connect

    I'm looking for the best way to connect at the NAE/NIE with my laptop. I don't expect to do any more than check field data and contollers at this time.

    I fell to the purge at JCI Dec 05 after 25...
Results 1 to 16 of 16
Comfortech Show Promo Image

Related Forums

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