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  1. Thread: What the...?

    by penderway
    Replies
    11
    Views
    680

    Hey Vin. I use a fluke 52-II with two 801-pk...

    Hey Vin. I use a fluke 52-II with two 801-pk thermocouple clamps (fast response) for pipe measurements.

    For refer pressure... 1% accurate analog gauges by Ritchie Yellow Jacket (which I keep...
  2. Replies
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    579

    Maybe you mean uno... number "one" in spanish. ...

    Maybe you mean uno... number "one" in spanish.

    I want a Unosex bathroom! :)
  3. Replies
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    579

    All the bathrooms in my house are unisex, no...

    All the bathrooms in my house are unisex, no problems so far...
  4. Thread: What the...?

    by penderway
    Replies
    11
    Views
    680

    SMAN460 and SPD2 measurements may be valid but...

    SMAN460 and SPD2 measurements may be valid but their calculations and diagnostics cannot be relied upon.
  5. Replies
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    1,057

    Do a handstand against the building, breath deep...

    Do a handstand against the building, breath deep and exhale until you feel better... careful that your arms don't give out and you break your neck. :grin2:
  6. ... and he ended his TV interview with... "Hi...

    ... and he ended his TV interview with... "Hi Mom"

    But we all know who shares the credit! :)

    Way to go Dad!!!
  7. Replies
    34
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    2,245

    I practiced with the smallest drill bit I could...

    I practiced with the smallest drill bit I could find. I've never attempted a 1/8" hole in aluminum. The solder is very runny. For a big hole, I would apply a piece of aluminum as a patch.

    It...
  8. Replies
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    3,032

    X2

    X2
  9. Replies
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    2,245

    I've used the kit from Harris and also the kit...

    I've used the kit from Harris and also the kit from Uniweld. Each is a bottle of flux and a coil of solder.

    Another tip: Apply the solder as the flux starts to boil. Don't heat the leak area...
  10. Replies
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    268

    Allow at least 5 minutes for system to respond,...

    Allow at least 5 minutes for system to respond, if not... Honeywell has a 1-800 customer line. It should be buried somewhere in the install manual.

    P.S. Very Very Important!!!

    Don't throw that...
  11. Replies
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    2,245

    Am I the only one who solders these? It is...

    Am I the only one who solders these?

    It is tough to control the heat. You have to get the aluminum hot enough the melt the solder but not too hot for to long which evaporates the necessary flux....
  12. Replies
    35
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    2,890

    A square-to-round would be the best fitting....

    A square-to-round would be the best fitting. 19x11 to 18" with a length of 2.5 equivalent duct diameters long (including the length of the heater bay). It's not a cheap fitting but at least the...
  13. Replies
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    2,890

    Proper Outlet Connections On most jobs there is...

    Proper Outlet Connections
    On most jobs there is not enough space at the fan outlet to install a straight duct that is equal to a 100 percent-effective duct length. However the duct designer and the...
  14. Replies
    35
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    2,890

    Nice work but it looks as if your guys made an...

    Nice work but it looks as if your guys made an improper supply plenum.

    Here's a pic of what a proper supply plenum looks like. The AHU connection should be sized to dimensions of Blower opening...
  15. Replies
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    517

    The fact that the supply plenum is the size of...

    The fact that the supply plenum is the size of the cabinet and not the size of the blower opening is evidence that the blower chart (if found) will be useless. The 0.15"wc supply is most likely from...
  16. Replies
    31
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    3,032

    The Nav51 has all the features and more than any...

    The Nav51 has all the features and more than any other clamp meter suggested already. It also has higher accuracy. I especially find it useful for measuring Power Factor. (15 out of 15 reviews, all...
  17. Replies
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    1,066

    All I know is that Warranty Exchanges over the...

    All I know is that Warranty Exchanges over the internet are cumbersome at best, otherwise nonexistent compared to over the counter at a local distributor.

    You just have to ask yourself... "Do I...
  18. Replies
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    520

    Policies can vary company to company, but as...

    Policies can vary company to company, but as you're accustomed to, "hand tools" are typically your responsibility.

    A good employer will allow you to purchase tools (on their account) from their...
  19. Replies
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    1,167

    Informative Post. Welcome to HVAC-Talk

    Informative Post. Welcome to HVAC-Talk
  20. Replies
    23
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    1,167

    To OP, AFAIK, no heat exchanger is designed to...

    To OP,
    AFAIK, no heat exchanger is designed to be absolutely "air tight" or to hold water without leaking. I say this because I was told of a sales tech removing and filling one with water to...
  21. Replies
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    1,218

    Absolutely! A dirty/damaged coil or blower...

    Absolutely!
    A dirty/damaged coil or blower wheel is the last correct answer I was looking for. Maybe there is something else IDK.



    That AHU was the Rheem "shorty" and yes, without a 9"...
  22. Replies
    31
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    3,032

    Hate to bump such an old thread but I just...

    Hate to bump such an old thread but I just realized my error in posting the model number.

    It is the "51" not the "54" that is IMHO the Best HVAC Clamp Meter

    The NAV54 does higher amperage (1000...
  23. Bang! Then... an instant fixed orifice metering...

    Bang! Then... an instant fixed orifice metering device.

    Heh Heh, That's old school Clint Eastwood style engineering! :)
  24. Replies
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    1,218

    Me neither, i'm just showing when you can and...

    Me neither, i'm just showing when you can and cannot rely on the published Blower Data.



    Agreed.

    When you start up the new system it's a great idea to write the Supply/Return Static...
  25. Replies
    22
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    1,218

    You measure without the OEM filter in place. You...

    You measure without the OEM filter in place. You have to read the Notes at the bottom of the Blower Data. Can't remember any of them ever including a filter. Usually just whether the coil is Wet or...
  26. Replies
    22
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    1,218

    True, I didn't think of that, and if someone put...

    True, I didn't think of that, and if someone put in a different Horsepower motor that would do it also.


    LOL, very true... Hey! you're too smart to play in this sandbox :)



    I agree, fan...
  27. Replies
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    1,218

    That's news to me. I've seen pictures of test...

    That's news to me. I've seen pictures of test systems and they've all had Supply connections as well as Return. Maybe some manufacturers only test with inlet restriction as a shortcut, can't say I...
  28. Replies
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    1,218

    Very good point and you are correct, the answer...

    Very good point and you are correct, the answer is False.

    There are instances where we are asked to install a 4' AHU in a 5' space. (maybe I exaggerate a little, but not much). In these situations...
  29. Replies
    22
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    1,218

    T.E.S.P True OR False question

    When the Total External Static Pressure of a Furnace or Fan/Coil unit, is measured using proper methods and accurate testing equipment, and accounts for blower speed, dry or wet coils, etc. etc.
    ...
  30. Thread: Russia

    by penderway
    Replies
    26
    Views
    3,390

    If I may, here is what I believe is the Russian...

    If I may, here is what I believe is the Russian to English translation:



    "We do so, according to ASHRAE! Rules are rules. By DRUOMU can be done."
  31. Thread: Pizza shop

    by penderway
    Replies
    31
    Views
    4,133

    My bad. It's actually "TurtleMans" picture that...

    My bad. It's actually "TurtleMans" picture that inspired me to respond. I didn't pay attention and assumed Andrew actually repaired and refurbished the unit.

    I believed a used blower wheel, and...
  32. Thread: Pizza shop

    by penderway
    Replies
    31
    Views
    4,133

    Great Job Andrew S, Your customer called for a...

    Great Job Andrew S, Your customer called for a Mechanic and you are proof that they got one. Cheers!

    To those who would promote equipment replacement as the best option for both you and your...
  33. Thread: Russia

    by penderway
    Replies
    26
    Views
    3,390

    Very nice! First time I've seen ductwork...

    Very nice!

    First time I've seen ductwork under a raised floor in residential. Also, it appears that the architect has made access and available space to the building mechanicals a priority. I...
  34. Replies
    12
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    979

    Benlewellen, there is also Blower door testing...

    Benlewellen, there is also Blower door testing for building infiltration, and "Duct Blaster" for duct seal integrity.

    As far as residential airflow, there is no one test that is perfect for all...
  35. Replies
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    1,420

    To the OP, Some customers are interested and...

    To the OP,

    Some customers are interested and some are not. I always start to explain (and sometimes show) the exact nature of the issue I found, possible causes, yada yada etc.

    If they are...
  36. Replies
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    2,115

    Yeah, drawing 9 out of the 12.6 rated load amps...

    Yeah, drawing 9 out of the 12.6 rated load amps is strange... it was doing some kinda work... just not pumping work!

    I imagine a lot of friction and heat was being produced instead.
  37. Replies
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    9,945

    Correct, TimeBuilder in the post above explains...

    Correct, TimeBuilder in the post above explains it better.
  38. Replies
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    4,768

    Ha... was waiting for an Indiana Jones reference!...

    Ha... was waiting for an Indiana Jones reference! You know there is a secret entrance below the slab (full of snakes though).
  39. Replies
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    14,168

    I understand your point of view, and respectfully...

    I understand your point of view, and respectfully stand by my position.
  40. Replies
    483
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    14,168

    I was intrigued by the title of this post and am...

    I was intrigued by the title of this post and am compelled to state my position.

    The "Golden Rule", as I interpret it, instructs me to be pro choice.

    Let it be known that I am not pro abortion,...
  41. Replies
    182
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    9,945

    I've set up a few Carrier enthalpy controlled...

    I've set up a few Carrier enthalpy controlled economizers. From what I understand, they make humidity the controlling factor to achieve the setpoint. If the outdoor air has more moisture than the...
  42. Replies
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    3,032

    Indeed! Amprobe ACD-54NAV Specs...

    Indeed!

    Amprobe ACD-54NAV Specs

    $304.00 online
  43. Replies
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    1,612

    Why not R-22? Price is reasonable in my area, ...

    Why not R-22? Price is reasonable in my area,

    I don't get the freezing part either, must be something else going on as well. Maybe HO is leaving stat down at 65 overnight? :(
  44. Replies
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    3,032

    Amprobe ACD-54NAV...

    Amprobe ACD-54NAV
  45. Replies
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    1,612

    SH is in range for a fixed orifice. The standing...

    SH is in range for a fixed orifice. The standing pressure test you did initially (pressures higher than sat, temps), confirms non condensables in the system.
  46. I like this idea, but i'd want a 3500. :)

    I like this idea, but i'd want a 3500. :)
  47. Replies
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    1,569

    X2, and we may never have the info needed. Posts...

    X2, and we may never have the info needed. Posts like this one don't often follow up :(

    also, static pressures are not reliable to check against a blower chart when you have unconventional supply...
  48. Replies
    15
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    1,569

    If I guess at your wet bulb temperature... say 72...

    If I guess at your wet bulb temperature... say 72 degrees (62% RH at 82 dry bulb), here's what I get.

    Basically low airflow or some other reason the evaporator is not getting enough heat.

    With...
  49. Replies
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    9,945

    Lots of great posts and ideas. I don't have much...

    Lots of great posts and ideas. I don't have much new to add, but I will reiterate a core issue to overcome is the profit of selling new equipment to solve issues that could be economically corrected...
  50. Replies
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    13,950

    Many exhaust fans are located so the, material to...

    Many exhaust fans are located so the, material to be exhausted, rises up to it, or is already near it.

    Moisture, smoke and odors naturally fill a space evenly, and if some is sucked out, it will...
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