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  1. Replies
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    Could be 10k type 2 or 3.

    Could be 10k type 2 or 3.
  2. Replies
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    704

    Agree on the comms thing. Would love to see that...

    Agree on the comms thing. Would love to see that article. Think we only take total cfm and an on status or motor feedback from hood controller through comms. Not any issues that we see, worst case...
  3. Replies
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    704

    Reply for Controls_3AE "If you have lab spaces...

    Reply for Controls_3AE

    "If you have lab spaces in your research facility, are they Delta controllers as well or are they a 3rd party like Phoenix or TSI?"

    All the main controllers are Delta....
  4. Replies
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    704

    Our whole research facility, around 8 buildings...

    Our whole research facility, around 8 buildings is all Delta controllers and Delta Controls operating system. We started with Delta more then 10 years ago, and we have no issues and good service. I...
  5. Thread: Cooling tower

    by Gdh33
    Replies
    13
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    502

    Need to see what the tower operation manual says...

    Need to see what the tower operation manual says or individual manuals (motor, gearbox, vfd, etc.) say. I gather all the manuals for my equipment preferably in pdf format. Store it somewhere on my...
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    276

    Browsing through their help area. Looks like it...

    Browsing through their help area. Looks like it may be in bindings. Under expression. Then should be able to put 0.0 as the format somewhere or state it somehow.
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    276

    I looked and couldn't find what you are asking. ...

    I looked and couldn't find what you are asking. But, do you know what type of graphic it is? Dg5, svg, gpc? All of our graphics on entelliweb, accessible from entelliviz, are svg. Assuming yours...
  8. Thread: HEATPIPS in FAHU

    by Gdh33
    Replies
    9
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    766

    Interested in this. Wouldn't the benefit be the...

    Interested in this. Wouldn't the benefit be the energy saving from the easier cooling and moisture removal by the cooling coil? I see the "free" reheat temperature rise after the coil and think...
  9. Replies
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    Our whole facility is Delta Controls. I like the...

    Our whole facility is Delta Controls. I like the products. Most of the information and documentation is in the Entelliweb or Orcaview program. Just search in the Help section of these programs and...
  10. Replies
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    1,326

    Like others said, need more info. Ours are dual...

    Like others said, need more info. Ours are dual duct (hot air mixed with cold air). Few units have a hydronic heat coil after the vav to boost heating. Dampers and valves are operated by belimo...
  11. Replies
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    1,189

    My post just above should read as 60 Deg C set...

    My post just above should read as 60 Deg C set tank temps (140 F), no lower than 50 Deg C tank temp or testing required. Couldn't find edit function for past post.
  12. Replies
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    1,519

    Must be that super high end ice making/storage...

    Must be that super high end ice making/storage system for low load and off peak times that I have been reading about.
  13. Just a follow up, some returns are now pulling...

    Just a follow up, some returns are now pulling air. Some are not (maybe not connected?). Big thank you to everyone. Obviously more work to be done. Did a temp rise across my heat exchanger...
  14. Replies
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    1,189

    Our facility requires HWTs that supply showers to...

    Our facility requires HWTs that supply showers to be set at 160 deg F. And if the tank goes below 150 F we need to do a legionella test. Otherwise the showers farthest from the tanks are tested by a...
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    I don't know what it is like in the NYC area, but...

    I don't know what it is like in the NYC area, but I have worked for Power Generation companies, Ethanol Production, Steel Production, and now a Research Facility as an Operatung Engineer. Up here...
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    470

    Return fan needed on meeting room AHU?

    Existing rooms were converted to our main meeting room in the 1980's. Approx 30' x 40' seats 180 people. It is an indoor ahu (Sheldons 4LP-2000) that consists of a supply fan and a heating coil and...
  17. Instructions says abs. Think they changed code...

    Instructions says abs. Think they changed code just after. Was installed between 2004 and 2006. But I am no pro.
  18. Well I will box in the two returns I found. Check...

    Well I will box in the two returns I found. Check the other ones that can be accessed and then check flows again. See if return equals supply.
  19. Ah your right. I found one other joist return...

    Ah your right. I found one other joist return that was compromised because of going to dropped ceiling. But seeing as this section was the only part still drywalled, I assumed it original. Guess it...
  20. No return air from half of the house. Return duct almost disconnected...

    Was hot in bedrooms, especially with doors closed. Return grilles in all rooms. But not pulling any air. Blocked off all other return grilles in house, run the fan and still barely any flow. Lots...
  21. Much appreciated guys.

    Much appreciated guys.
  22. For me, it is like a hobby and interesting. Like...

    For me, it is like a hobby and interesting. Like woodworking for some people vs buying it at IKEA. Or hotrods vs buying a McLaren. Willing to spend more time and money because it is what I like. ...
  23. Thank you for your replies. Any thoughts on if...

    Thank you for your replies. Any thoughts on if and when the communication is going to become more open source, non proprietary? 1 year, 10 years, never?
  24. Not opposed to Geothermal. My neighbours have...

    Not opposed to Geothermal. My neighbours have it, I have the land for the loop. But I don't see the payback with gas so cheap. Enlighten me if you see otherwise. Thanks.
  25. Variable speed fan, modulating burner, multistage cooling? Upgrade.

    Looking at upgrading my HVAC system in a few years. Seeing what is out there now. I work as an Engineer/Operator of Building systems and HVAC at a research labratory. Having seen the equipment we...
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    Need both. On our systems, schedule turns off...

    Need both. On our systems, schedule turns off and thus shutd down AHUs and equipment. Night setback is enabled. If any temps exceed setback, something corrects this( ahu, local heat, fan,...
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    We have 100 plus VAVs on OS. We just cherry pick...

    We have 100 plus VAVs on OS. We just cherry pick the coldest or hottest rooms or most important people. Average that temp vs their set points. See how rest behaves.
  28. Thread: VRF hvac systems

    by Gdh33
    Replies
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    697

    We have a few systems installed, not VRF though,...

    We have a few systems installed, not VRF though, that heat and cool at same time for dehumidification. Would ask installer or BAS programmer at what RH does the units dehumidify to? Is the zone...
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