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    Liebert SiteLink-E IP Address Change

    I service a site that has a Liebert SiteLink-E which is providing CRAC unit data to the BAS system via BACnet over IP. The I.T. dept just changed their Lan scheme and have changed all BAS devices to...
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    That's right. The event viewer will allow you to...

    That's right. The event viewer will allow you to discard up to 1000 at a time until you're done. If you have a head-end (ADS/ADX) you can use the database manager (little green envelope) to manage...
  3. Thread: NCM 350 and PMI

    by Lambo
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    1,588

    Dos Prep?

    I recently set up a PMI workstation using a box with XP-SP2. The documentation states that SP1 is validated, SP2 is "Cursory Tested", and SP3 has not been tested or validated at all. What I found is...
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    M-Graphics

    I have attached the M-graphics user guide in case you didn't have it.
    The easiest way to create new points is to copy and paste existing ones, and then modify their properties. If the existing...
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    Liebert Control

    One thing that always seems to get overlooked is the location of the floor vents. These data centers are ever changing with new racks going in, coming out, and getting moved. Some of the older racks...
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    Your plumber should be familiar with, and...

    Your plumber should be familiar with, and following the procedures for correctly sizing vents and connectors as published by NFPA in a publication entitled, NFPA 54: National Fuel Gas Code (NFGC)...
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    Basic Transducer wiring.

    Although I don't have the cut-sheet on the exact sensor used in a YT chiller, I have attached a document that covers the wiring of the most common transducer configurations that you would probably...
  8. Fieldserver, Babel Buster, etc

    Fieldserver is one of the companies out there that can make almost any system talk to another. We use them frequently. They may be pricier than others, but the applications, resources, and support...
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    Braking resistor

    I can't take credit for this. I cut this from an old post. I have also read that fans that have too much mass/inertia cannot be used with a DC braking parameter------it's just too much energy for the...
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    BCM-TUX

    I'm not very familiar with the TUX controllers, but from what I've read, you may need a BCM-TUX to work as a gateway to make the propritary TUX controller data available as BacNet data on an IBEX...
  11. Thread: The FLUKE cult

    by Lambo
    Replies
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    11,156

    The right meter for the job

    I too joined the cult some years ago. My first digital was a Beckman. When it gave up the ghost, the new Flukes were the most comparable line available when considering price, feature and durability....
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    Two separate issues

    If your VFD's control static pressure, then that is all they should do. Although the performance and health of the DX cooling may be somewhat dependent upon proper airfow accross the evaporator, you...
  13. Thread: Low ambient kit

    by Lambo
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    Proper sequencing

    I can't vouch for the models that are currently offered (maybe someone else here can) but what is important is the sequence in which you cycle the fans. If you noticed from the damper option, the...
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    Prime example

    In D.C, they decide to construct a new building---Everyone's exited. The 100% drawings are completed some years later. The bid process begins. The engineers had spec'd the control system around the...
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    Answered my own question

    I think I've amswered my own question-------actualy led to the answer by another post. I'm not sure if it's the same one that I used to carry, but the "Preston Guide" seems to be the industry...
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    A/C, Furnace, and HP Cross Reference Guide

    A long time ago (in a galaxy not too far away) I used to carry around these little cross reference guides for the model numbers of most of the major brands of equipment. For instance, I could look at...
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    On the same subject---

    On the same subject, has anyone been to a class that covers basic control logic? I'm interrested in a course that covers line-by-line programming. I realize that most programming languages are...
  18. Thread: Low ambient kit

    by Lambo
    Replies
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    2,124

    Factory Low ambient

    Below are excerpts from the attached Trane RAUC manual. Based on the original low ambient options intended for this unit, I would contact Trane for advice regarding the use of over-the-counter head...
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    Correct type/mixture?

    Minn, my last post were my initial thoughts after reviewing some data comparing the two types of glycol. There are correction factors for required pump volume for glycol as compared to straight...
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    Pumping Capacity

    Although the heat transfer rate of propylene is slightly better, it's viscosity is much greater than that of what you had. This may simply be affecting the volume of the heat transfer medium (Glycol)...
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    XIF Files?

    I'm not familiar with your product or software, but in my world I have to import .XIF files to make some LON devices wake up. I have also been through the nightmares of having the network image of...
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    Costly electric heat.

    I too would recommend a better quality thermostat. When these thermostats are returning to the occupied/comfort heating setpoints, they should do so by excluding the use of electric heat---as long as...
  23. Thread: A/C filters

    by Lambo
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    Beware of too much restriction

    I don't have any brand specific advice to offer, but sizing is very important. You may not be able to just install "any filter that will fit" in your existing filter track. The furnace blower was...
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    $$$$$

    Just found a "Sticky" by RoBoTek related to the matter. I guess we jumped the gun.

    (Rule 1 of Professional Membership: Never talk about Professional Membership!)

    I would consider a deal with...
  25. Thread: Alerton bactalk

    by Lambo
    Replies
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    Documentation

    Here are some usefull documents related to the Alerton controls training.
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