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  1. Replies
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    Supply and Return fans speeds seem unrelated to...

    Supply and Return fans speeds seem unrelated to OSA CFM Intake. Compare the Return air with the OSA and the Mixed Air temperatures, to assess the actual OSA % being brought in. Designers in the...
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    Looking for more Demand Control References, still...

    Looking for more Demand Control References, still meeting resistance to saving chiller amps by limiting OSA intake with CO2 Sensors opening dampers and monitoring filter chamber positive/negative...
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    Anybody used PTFE Teflon lubricant on dampers? ...

    Anybody used PTFE Teflon lubricant on dampers? Says it is for low speeds and has a wide range of temperture lubricity. Supposed to not attract dust. Found some aersol spray teflon. Temperature...
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    I am still using daily average kWH as a...

    I am still using daily average kWH as a benchmark. The daily averge kWH is higher in the Summer months, for this building.

    The other day I learned to Subtract and multiply with Excel. I already...
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    One way to avoid bringing in excess outside air...

    One way to avoid bringing in excess outside air is to avoid running the fan at all. This building does not have predictable occupancy. I need comfortable temps for most all times, to avoid...
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    I have not researched how to get NOAA information...

    I have not researched how to get NOAA information for past years. I believe I have seen an option for a paid subscription to get information. I am printing the NOAA on a daily basis, this year, so...
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    I calculated some daily averages from last year's...

    I calculated some daily averages from last year's monthly billing periods, so I can compare how I am doing against last year. I calculated this year's monthly bills so far this year, and compared...
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    So I ran each month of last Summer, and came up...

    So I ran each month of last Summer, and came up with a daily kWH average for each month. The bills come out each month.

    Now, as the days of May are coming in, I can take the average of the days...
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    Apparently the Electric billing for commercial...

    Apparently the Electric billing for commercial buildings in this area has been changed, so that the peak demand charge that is charged, is not a significant factor in the billing. In previous years...
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    Peak Electric Demand Consultants

    I have CEO,Chief Energy Officer, print outs daily graphs of the electric meters on chillers and the other electrical usage in the building. My ideas on how to save with Time of Day Metering and Peak...
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    Prolific tip, Thanks Dapper Search:...

    Prolific tip, Thanks Dapper





    Search: Demand Controlled Ventilation CO2


    DCV, Demand Controlled Ventilation, article seems to advocate the installation of CO2 sensors, for real time...
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    The Occupancy is variable. From Day to night,...

    The Occupancy is variable.

    From Day to night, and Day to day, Morning to Afternoon.

    I have just hooked up the CO2 Sensors to control the Supply, and Return Fan VFD's, and the OSA Dampers, in...
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    I could not get access to the Copeland Thread. I...

    I could not get access to the Copeland Thread. I am not a professional member, as of yet.

    Some Meggers have a range selection of Voltage, like 460 Volt and 220 Volt and 1000 Volt. The less...
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    CO2 Saves Electricity/OSA References

    I am interested in finding some articles that will describe that saving bringing in Outside Air will save electricity in Commercial Buildings.

    There are some Carbon Dioxide Sensors on the Return...
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    ASME standards call for accessible drains at all...

    ASME standards call for accessible drains at all low points, and traps at all low points. Did not see that mentioned above. Steam is harmless, unless there is water in the pipe, then a steam pipe...
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    Why is the tube leaking? Is there a crack...

    Why is the tube leaking?

    Is there a crack where the tube is leaking? Are there cracks in other tubes, that are not yet leaking? What about the firing rates? Is the burner short cycling more...
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    I usually start out by taking a bucket of soapy...

    I usually start out by taking a bucket of soapy water and a couple of rags to wipe down as much dust as I can first. My idea is that if there is less dust around the damper shaft bearing, then less...
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    I don't know what pb is, and I tried to search,...

    I don't know what pb is, and I tried to search, but failed to figure it out.

    pb is the short form of the element Lead, that is how close I got,.


    ..
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    I have had success with Spray Silicone Lube. ...

    I have had success with Spray Silicone Lube. Graingers has food grade Silicone Spray Lubes. Silicone has no warnings on the MSDS sheet, itself. Various propellants may be more eco-friendly.

    I...
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    Honeywell 2 Oz Tube, Valve Stem Lube, Part No...

    Honeywell 2 Oz Tube, Valve Stem Lube, Part No 311057
    Looked like Cranberry Jelly in the Honeywell Valve Repack kit I found.

    Napa Auto Parts has Sil-Glyde, Part 765-1351, may not be the best for...
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    Which Lube for Pneumatic Valve Stems?

    There are a variety of 10 to 30 year old pneumatic valve stems in this Commercial Building. The Valve stems move up and down by pneumatic actuators, Springs and diaphrams.

    What is best lube...
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    Thanks for the FPT info. I misread the...

    Thanks for the FPT info.

    I misread the continuity on the LPS low pressure switch. Unit was very low on Freon, and LPS was holding compressor off.

    Still not sure what voltage runs through the...
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    Dear DBS LLC, Thanks for the tip. I have...

    Dear DBS LLC,

    Thanks for the tip.

    I have ordered the wiring diagram and the manual from Carrier. Also the $4.95 jumper plug.

    I was expecting to be able to follow the wires and make sense of...
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    Update: I am working on getting an economizer...

    Update:

    I am working on getting an economizer jumper from Carrier.

    I stil don't know what a CH and FTP safety is, or what they stand for, or where they are located.

    I tried Carrier's...
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    That is exatcly what I was looking for, but did...

    That is exatcly what I was looking for, but did not find one.

    It may be that the A/C circuit board is powered through that pin, and that is where the Pink wire is going. The 24 voltage seems to...
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