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  1. #92
    Join Date
    Mar 2004
    Location
    NJ
    Posts
    1,214

    Re: Your move I think.....lol

    Originally posted by john dalton
    Dear Thehumid1,

    I don’t agree with your last statement…….I think the humor you have shown of this thread has earned you a spot on stage……….but unfortunately, like my own humor, that stage should be the one out of town!

    And thanks for the vote of confidence regarding letting me work on you’re a/c at home, but we don’t do residential, only commercial, industrial, and institutional systems…..sorry…..lol.

    Respectfully Submitted,
    John J. Dalton


    Well actually you can do my home if you do institutions... well I think pysch ward is considered institutional I will ask the doc when I re-up on my anti-homicidal meds.
    thehumid1-------I live in NJ, a state where it's free to come in but you have to pay to leave!

  2. #93
    Join Date
    May 2004
    Location
    Los Angeles, CA
    Posts
    1,560
    Dear Thehumid1,

    I know what you’re talking about regarding the time consumption of this thread, but interesting games of “HVAC chess” usually do take time…..lol.

    In a few minutes I’ll post my recommendations regarding the commissioning of this system. I’ll be interested in seeing your recommendations as well.

    And if I forget to say this, because my memory has been questions on this thread by someone……hummmmmm, I wonder who…..lol:

    Merry Christmas and happy new Year!!!!

    Respectfully Submitted,
    John J. Dalton

    PS: Post of commissioning to follow.

    PSS: Serverroomcooling, any word regarding completion of the system so that commissioning(testing and balancing) can be started??????

  3. #94
    Join Date
    Mar 2004
    Location
    NJ
    Posts
    1,214
    Merry Christmas to all the overly dedicated souls on this forum.

    PSS: Serverroomcooling, any word regarding completion of the system so that commissioning(testing and balancing) can be started??????


    I am gonna start again now.....

    Florida testing and airbalancing:

    1)wet thumb

    2)stick thumb below supply drop

    3)If you feel air across your thumb and it is colder than the room temperature move to next drop.

    4)If all supply drops have same test result, tip your cap to customer and say "She is purring like kitten...your good to go!"

    Florida Static pressure: The wife complaining about your drinking or worse yet fishin.
    thehumid1-------I live in NJ, a state where it's free to come in but you have to pay to leave!

  4. #95
    Join Date
    Nov 2004
    Location
    Hollywood, FL
    Posts
    365
    OK I have just completed sealing the room off, and I am now moving the spot coolers off. The tstat is set to 68....I'm going home. I will spend an hour in there tomorrow getting the cycle times on and off.

    It's 80 degrees here so it's not too cold


  5. #96
    Join Date
    May 2004
    Location
    Los Angeles, CA
    Posts
    1,560
    serverroomcooling

    You still there....?

  6. #97
    Join Date
    May 2004
    Location
    Los Angeles, CA
    Posts
    1,560

    Commissioning

    Dear Serverroomcooling,

    I see you’re going to get home a little earlier this evening. That’s great.

    I see from your last post that the room is completely sealed up once more. I would assume the HVAC system installation is complete as well.

    Now its time for the rubber to meet the road. System commissioning.

    In order for your contractor to have completed this system he would have had to take a series of reading and measurements from the HVAC system while it was running. The minimal data required for this would be the following. Ask him tomorrow if he is there or call him up and obtain the information:

    Return air dry and wet bulb readings:
    Supply air dry and wet bulb readings:
    Outside air dry and wet bulb readings:
    Suction line dry bulb reading:
    Liquid line dry bulb reading:
    Suction line pressure:
    Liquid line pressure:
    FLA or RLA on the compressor:
    Running amps of the compressor:

    In addition, if he took the actual CFM readings from the supply registers and the return air grill:

    In order to determine the cycle rate and actual heat load of the room then you need to record the off/on times and temperatures of the system. In other words your going to record the time the compressor starts and at what temperature and your going to record the time the compressor stops and at what temperature. If you log these events for a period of 60 minutes then that would be very helpful. If you knew what the outside temperature was during this 60 minute time period then that would be great as well.

    I know this is a lot of information to record but with the information recorded above, we at this forum could tell a lot about not only the new cooling system, but we could tell you about the server room structure, your computer and light heat load inside the room, the rate of air exchanges per hour, and how your room is reacting to the new cooling system.

    Look forward to your posts of tomorrow morning. See you then.

    Respectfully Submitted,
    John J. Dalton

  7. #98
    Join Date
    Nov 2004
    Location
    Hollywood, FL
    Posts
    365
    I am at home, went out after work for a little while....I am monitiring mt temp probe from my home (gotta love IT guys) I'm going to head back at about 10:30 to see how things are. Tomorrow I will spend the 60 minutes gathering that data. I did it today, not as just a waste of my time, b/c I think I will learn a lot from comparing the data from the room with open ceiling tiles vs the data from closed ceiling tiles....maybe I'm just crazy, but I will see wjat happens tomorrow. I'll try to get my hvac guy to give me all that stuff, but I'm not going to push too hard. I'll ask him for maint, status, and performance data. Then ask about all that which you mentioned above

    And yes, my company appreciates my efforts in this matter

    :-)

  8. #99
    Join Date
    May 2004
    Location
    Los Angeles, CA
    Posts
    1,560

    Good Night

    Dear Serverroomcooling,

    If your contractor is as helpful as you say he shouldn’t mind giving you his readings. At this point we’ll take anything he has though. Glaid to see you’ll get a little rest this evening…..lol…..and yes, we HVAC love you IT guys too….my son is the IT manager of our company…..and I love my son….lol.

    Have a great evening.

    Respectfully Submitted,
    John J. Dalton

    PS: That 52 amps reading you gave us a few dozen posts ago….was that the actual recorded amps or just all the equipment added up? Is it possible to get the actual running amps through your UPS system if it wasn’t?


  9. #100
    Join Date
    Nov 2004
    Location
    Hollywood, FL
    Posts
    365
    UPS says 21.3 AMPs of out put right now....I have an amp probe and if I go to the electric room and use the probe it reads 26 AMPs on both of the thick wires....I'm no electrician so I don't know if one wire is the AMPs going to the room and the AMPs coming back, meaning the total in the server room is 26, or do I really have 52 in there

  10. #101
    Join Date
    Nov 2004
    Location
    Hollywood, FL
    Posts
    365
    Input Voltage: 209.6 VAC
    Input Frequency: 60.00 Hz
    Maximum Input Voltage: 209.6 VAC
    Minimum Input Voltage: 209.6 VAC

    Output Power Status



    Output Voltage: 210.6 VAC
    Output Frequency: 60.00 Hz
    Output Current: 21.3 Amps
    Output Watts at n+0: 055 % Watts
    Output VA at n+0: 037 % VA


  11. #102
    Join Date
    Nov 2004
    Location
    Hollywood, FL
    Posts
    365
    the temp probe which is connected to my UPS has been constant between 81.50 and 81.95 for the past 4 hours. I get a reading every minnute.....this tells me that the temp is pretty stable in there....I wish I remeber exactly where the probe is....I know it'd somewhere in the rack in the back of the room

  12. #103
    Join Date
    Nov 2004
    Location
    Hollywood, FL
    Posts
    365
    ok here it is....with the outside temp of 77 and relative humidity outside of 84% here are my on/off cycle information from this morning with the tstat set to 68

    10:05 cycle off temp reading 68
    10:10 cycle on temp reading 72 (actually hit that about 10 seconds after the handler turned on

    10:18 cycle off temp back down to 68
    10:21 cycle on temp read 71
    10:33 cycle of temp read 68
    10:36 cycle on temp read 71
    10:48 cycle off temp read 68
    10:51 cycle on temp read 72

    here is the temp probe information from my probe that is in the rack at the back of my room (the one which contains my UPS and a bunch of server:

    looks to be pretty stable

    *Time* *TIambF*
    10:57:56* 81.50*
    10:56:56* 81.50*
    10:55:55* 81.95*
    10:54:55* 81.95*
    10:53:55* 81.95*
    10:52:55* 81.95*
    10:51:55* 81.95*
    10:50:55* 81.95*
    10:49:55* 81.50*
    10:48:55* 81.50*
    10:47:55* 81.50*
    10:46:55* 81.50*
    10:45:55* 81.50*
    10:44:55* 81.50*
    10:43:55* 81.95*
    10:42:55* 81.95*
    10:41:55* 81.95*
    10:40:55* 81.95*
    10:39:55* 81.95*
    10:38:55* 81.95*
    10:37:55* 82.40*
    10:36:55* 81.95*
    10:35:55* 81.95*
    10:34:55* 81.50*
    10:33:55* 81.50*
    10:32:55* 81.50*
    10:31:55* 81.50*
    10:30:55* 81.50*
    10:29:55* 81.50*
    10:28:55* 81.95*
    10:27:55* 81.95*
    10:26:55* 81.95*
    10:25:55* 81.95*
    10:24:55* 81.95*
    10:23:55* 81.95*
    10:22:55* 81.95*
    10:21:55* 81.95*
    10:20:55* 81.50*
    10:19:55* 81.50*
    10:18:55* 81.05*
    10:17:55* 81.05*
    10:16:55* 81.05*
    10:15:55* 81.50*
    10:14:55* 81.50*
    10:13:55* 81.50*
    10:12:55* 81.50*
    10:11:55* 81.50*
    10:10:55* 81.05*
    10:09:55* 80.60*
    10:08:55* 80.60*
    10:07:55* 80.60*
    10:06:55* 80.60*
    10:05:55* 80.15*
    10:04:55* 80.15*

  13. #104
    Join Date
    Nov 2004
    Location
    Hollywood, FL
    Posts
    365
    the internal temp on my UPS unit, which is an APC Symetra 1200, in case you were interested used to get as high as 117....now it is stable at 101

    I would call that progress

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