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  1. Replies
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    Too bad, the old hack is too lazy to cook dinner....

    Too bad, the old hack is too lazy to cook dinner. He has plenty of potato-chip for dinner and just stuff the pipe with those empty foil bags.
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    Galois (1811-1842) with his "group" theory in...

    Galois (1811-1842) with his "group" theory in modern algebra which leads to "logics". Died 31 after a duel (otherwise, we'll be in deep sh!t studying his stuff).
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    Quite often in various industries, the "charge"...

    Quite often in various industries, the "charge" is based on how much money the "fix" saves the company (if it had not been fixed for ??? period of time), not on the labor or "know how". Same thing...
  4. Thread: Chlorine CFC's

    by espock
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    If you eve look at the "core" part of any EPA 608...

    If you eve look at the "core" part of any EPA 608 or 609 training materials. It is explained very clearly. Chlorine in other natural forms (volcanos as such) are more easily "washed-out" by rain i.e....
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    It's all in your data honglo, 10 degrees...

    It's all in your data honglo, 10 degrees superheat -> no liquid return. 40F return refrig temp at the CU suction -> plenty of sweat if dewpoint is say > 60F . The sweat covers the comp. body because...
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    Hey ! that tech did put some thought about...

    Hey ! that tech did put some thought about electrically isolating the metal can from touching the wires images/smilies/biggrin.gif
  7. Thread: Pride or shame?

    by espock
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    Re: Watch out?

    ... a cow, burried alive (can you see the horn and an eye) ? images/smilies/rolleyes.gif
    ... some animal watching your butts ? images/smilies/biggrin.gif
  8. Thread: Pride or shame?

    by espock
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    http://ww2.imagewiz.net/images/hvac/131449_RheemHo...

    http://ww2.imagewiz.net/images/hvac/131449_RheemHouse.jpg
  9. Thread: Skinning a Cat

    by espock
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    1,115

    Just an idea, pump puffs of smoke into the supply...

    Just an idea, pump puffs of smoke into the supply duct and video tape it comming out of the register. Count how many frames in slow motion it travels 1 foot. 1 frame is 1/60 sec. So you can calculate...
  10. Thread: Good News!

    by espock
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    ... and you'll be fulltime managing this board...

    ... and you'll be fulltime managing this board huh ? BC # 1 :)
    ... and your son is BC # 2 ?
    Congrats!

    [Edited by espock on 09-22-2004 at 06:03 PM]
  11. Thread: Skinning a Cat

    by espock
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    1,115

    Have read the other thread about SP with...

    Have read the other thread about SP with interest.
    Measuring SPs to control/fix CFM for a while, he's probably get bored with just you answering. Switching around now to measure CFM to figure out...
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    Big chance that the motherboard of your computer...

    Big chance that the motherboard of your computer if not the whole box is made is China (or Taiwan).
    The rule is if there is one part of the whole assembly done in the US, that qualifies to put "made...
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    You need to understand the source of your issue...

    You need to understand the source of your issue and fix it at the source - why is in house 85F, how much hotter attic temp above 90F day? are there lots of windows with direct sun hit?
    85F in the...
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    What prompts you to go with this solution ? To...

    What prompts you to go with this solution ? To solve high attic temp issue ? What's your normal attic temp above ambient ?
    Proper static ridge/wind-turbine vent and soffit vent area is normally...
  15. Thread: Bucket of heat

    by espock
    Replies
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    1,724

    Robo gets you the ball-park on latent heat...

    Robo gets you the ball-park on latent heat removed there. Don't assume with 2-ton you will get 48K BTUs in 2 hours.
    Measuring the WB temps for air entering and leaving the evap. to calculate the...
  16. Those skills could become handy. Condenser...

    Those skills could become handy.
    Condenser <----> Warp core
    Line set <----> Power transfer conduit
    Juice <----> Plasma flow
    Evaporator <----> Warp coil
    ...
  17. Close, but not until DiLithium is uncovered :)

    Close, but not until DiLithium is uncovered :)
  18. Thread: Engineers

    by espock
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    1,902

    Engineers in the past are first in-line to test...

    Engineers in the past are first in-line to test their product (new airplane for example). Now they are last cauz they know the quality.

    Not that they did't do good design, it's the product of...
  19. Einstein's theory of relativity, quantum physics...

    Einstein's theory of relativity, quantum physics ... those are current extent of human knowledge. Scientists are still scratching their heads trying to explain phenomenons they saw in black holes...
  20. Thread: Who is........

    by espock
    Replies
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    Be Careful, "number one"!

    Be Careful, "number one"!
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    This is a well-known heath issue in computer...

    This is a well-known heath issue in computer professional.
    Changing to a more egornomic mouse, KB, your posing, KB height, monitor height would help. If the symptoms are not improving, see a doctor....
  22. Thread: Who is........

    by espock
    Replies
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    I was thinking of that but Don's post has spoiled...

    I was thinking of that but Don's post has spoiled mine.
    Here were what I thought:
    BC1 - Hmm ! number "1" ... benncool, is that you ?
    BC1 - Being Coached 1st (by Boss) ?
    BC1 - Be Careful, "number...
  23. Thread: Who is........

    by espock
    Replies
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    4,953

    Uuh ! starting to transform already. By the way...

    Uuh ! starting to transform already. By the way noticing the "Goooooooooooooogle".
  24. Replies
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    LMTD, If I understand correctly, at "designed...

    LMTD, If I understand correctly, at "designed conditions", the head pressure which translates to the saturated temp of the hot gas is what you called designed SCT (am I correct ?). The coil is...
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    What's the relation/significance of "coil design...

    What's the relation/significance of "coil design for X F over ambient" to the "achievable" SC ?
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    Steve, Shop, I took this training as a course...

    Steve, Shop, I took this training as a course provided by my employer. The whole work-group is taking it together. The instructor picked out ones with "extreme" personality put they in a hypo...
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    Personally I think every corporate that has their...

    Personally I think every corporate that has their employees dealing face-to-face with clients should have giving free MBTI training class. I've gone through once and it helped me in dealing with my...
  28. I'll attemp explaining this but first, disclaimer...

    I'll attemp explaining this but first, disclaimer - I'm no rocket scientist :).

    Even though ESPs are almost same, CFMs are different (I bet, if you measure them. You should have 3 different blower...
  29. Thread: Im bored

    by espock
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    1,875

    Young hack falling, still holding a beer can on...

    Young hack falling, still holding a beer can on his hand. Old hack dangling on the roof cauz his hand was still grabbing the suction line doing BCC.
  30. Thread: Im bored

    by espock
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    1,875

    OK, what part of an HVAC tech that lies down when...

    OK, what part of an HVAC tech that lies down when he stands, lies down when he sits but stands when he lies down ?
  31. What a lucky HO to have you as a friend. Good...

    What a lucky HO to have you as a friend. Good luck.
  32. Hmm! upstair 77, entering 69.5. My theory is the...

    Hmm! upstair 77, entering 69.5. My theory is the Lennox supply leak through damper help lower temp in basement and both pull this cold air and the cycle continues to screw the Carrier up. If basement...
  33. Two different problems ? (could be same problem,...

    Two different problems ? (could be same problem, different symptoms).

    What are the relevant info on these 2 cases - temps, SH, SC.
  34. Observations and more questions: common...

    Observations and more questions:



    common return is small for the Lennox's suction to affect Carrier's return this much.



    Definitely some leakage through the damper, especially when return...
  35. Mid, please put + or - on these figures. They...

    Mid, please put + or - on these figures. They would show whether air is pushed through the carrier supply path or sucked through via the common return path or both.
    Computer says "insufficient data"...
  36. ... just finish typing data into computer....

    ... just finish typing data into computer.
    Computer ... analyze .....

    I'll be back when the analysis is done :)
    (got some emergency fire to put out first, looking like we're being hit with a...
  37. I might jump prematurely in my last post on...

    I might jump prematurely in my last post on "out-of-spec" fan curve. In your case, even though the total static pressure is out of manf. published range,
    I think the fan laws below are still valid...
  38. These 2 seems contradict each other. Out of...

    These 2 seems contradict each other.

    Out of the spec'ed range, the blower curve i.e. CFM doesnot depending on the total ESP anymore, it would need a 3D graph for CFM vs return ESP and supply ESP....
  39. An anology: * Negative return pressure = a guy...

    An anology:
    * Negative return pressure = a guy pulling back a car from behind
    * Positive supply pressure = a guy pushing back a car from front
    * The car has to overcome the total sum of these two...
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    "If there is righteousness in the heart, there...

    "If there is righteousness in the heart, there will be beauty in character.
    If there is beauty in character, there will be harmony in the home.
    If there is harmony in the home, there will be order...
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    Don, congrats ! your daughter is very talented,...

    Don, congrats ! your daughter is very talented, not many artistic skills also good at web authoring/programming. You should have asked for her help making this site "beautiful". Well, maintaining...
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    Everyone, beat-to-death same topic here...

    Everyone, beat-to-death same topic here http://hvac-talk.com/vbb/showthread.php?threadid=56681 .
    History repeats itself ? :)
  43. Thread: Mold on grills

    by espock
    Replies
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    4,910

    %RH is for "percentage of Relative Humidity", a...

    %RH is for "percentage of Relative Humidity", a measurement of air humidity. You can get one at stores like Walmart, it's called hygrometer. It usually measures both temperature and humidity. It's...
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    "condensate trap" is the "U" section of the drain...

    "condensate trap" is the "U" section of the drain water pipe of the evaporator. Try to flush the drain pipe with decent amount of water. Molds or clorox solution might still trapped there.

    As the...
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    Ingenuity at work ! Thanks for sharing, teddy,...

    Ingenuity at work ! Thanks for sharing, teddy, without asking us to donate donuts :)
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    Whuh ! I live in Houston and my last summer bill...

    Whuh ! I live in Houston and my last summer bill was ~$200/month and my wife complains it's high (2300 ft2 1-story 5-ton AC, trying to keep @ 78F , <50%RH). I feel your pain.

    On the elect. rate,...
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    3-4 F rise per hour seems like too much heat...

    3-4 F rise per hour seems like too much heat gain. You might want to cut down the heat gain into your house before solving it with more AC tonage. What's your attic temp on those hot days ? Does the...
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    If the AC is slightly oversized, you can use the...

    If the AC is slightly oversized, you can use the extra BTU to remove latent heat i.e. moisture. Ask the installer to move the blower to the lower speed tab possible (to get lower evap. temp for...
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    Your options could be: 1) Buy a dehumidifier,...

    Your options could be:
    1) Buy a dehumidifier, probably least expensive option.
    2) Have your installer install a TXV (Thermostatic Expansion Valve) at your evaporator to improve latent heat removal...
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