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  1. Thread: Megger readings

    by cy
    Replies
    31
    Views
    809

    here's my Fluke 1520 ...

    here's my Fluke 1520

    http://img.photobucket.com/albums/v186/o0pss/DSC09852.jpg

    some old timers prefer this style megger with crank ...
  2. Replies
    27
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    979

    good grief!~

    good grief!~
  3. Replies
    16
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    2,204

    thanks .. was thinking I was the only one that...

    thanks .. was thinking I was the only one that preferred dial-a-charge for small charges.
    charge using dial-a-charge is typically under 3lbs.

    got two different dial-a-charge for different...
  4. Replies
    40
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    2,773

    airgas guy specifically stated his customers had...

    airgas guy specifically stated his customers had been buying industrial grade Co2 for pressure testing HVAC systems. unless one is pulling a deep vacuum before pressure testing odds are there will be...
  5. Replies
    40
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    2,773

    here's airgas Co2 technical description link to...

    here's airgas Co2 technical description link to pdf ... bone dry is listed as 99.9%
    http://www.airgassgcatalog.com/catalog/pg013.pdf

    Linde food grade Co2 is listed as 99.9%...
  6. Replies
    40
    Views
    2,773

    what grade are you buying? Bone dry or plain ole...

    what grade are you buying? Bone dry or plain ole industrial grade?
    Airgas guy is saying the industrial grade works just fine.
  7. Replies
    40
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    2,773

    finally got a straight answer from an old timer...

    finally got a straight answer from an old timer at Airgas. he'd been selling Co2 industrial grade to folks for HVAC work for 30+ years. he said Bone dry grade would raise cost so high to be not worth...
  8. Replies
    40
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    2,773

    welding shield gas is industrial grade, which is...

    welding shield gas is industrial grade, which is same as food grade according to folks that I've talking to.

    already googled up a storm on CO2 purity ... found all sorts of info, but needed to...
  9. Replies
    40
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    2,773

    thanks .. what grade Co2 is everyone using ......

    thanks .. what grade Co2 is everyone using ... bone dry grade is hard to find around here and more expensive than nitrogen. can't seem to get a straight answer from local gas supplier as to purity of...
  10. Replies
    40
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    2,773

    hmmmm .. dry CO2 may be OK to pressure test with?...

    hmmmm .. dry CO2 may be OK to pressure test with?
    been using CO2 as shielding gas for welding steel for years.

    just scored one of these ... sure is a pita/$$ refilling small nitrogen tanks and...
  11. Replies
    11
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    7,831

    does anyone have feedback on LG ductless mini...

    does anyone have feedback on LG ductless mini split heat output performance?
  12. Replies
    21
    Views
    2,515

    R410A is a zeotropic refrigerant, behaves almost...

    R410A is a zeotropic refrigerant, behaves almost as if it was an azeotrope. there are only two refrigerants with very close boiling points at constant pressure. R410A is a 50:50 mixture by weight of...
  13. Replies
    51
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    6,076

    interesting thread....

    interesting thread....
  14. Replies
    21
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    2,515

    throw out all of above .. ie conventional...

    throw out all of above .. ie conventional thinking
    vapor temp is only an approximate indicator charge is correct.

    pressures on smaller line is identical to larger line. can't speak for other...
  15. Replies
    21
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    2,515

    LG ductless mini splits only come with one...

    LG ductless mini splits only come with one service port per station on vapor side.
    there are no service valves on inside ... a royal PITA if you only need to remove a few oz. the entire charge...
  16. Replies
    21
    Views
    2,515

    listing is confusing too... it's 5/16 but uses...

    listing is confusing too... it's 5/16 but uses 1/2 20 UNF
    here's the correct. part number below ($3.35) .. make sure you get the style that depresses shrader valve.

    AD87 CPS 1/4" SAE M x 5/16"...
  17. Replies
    21
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    2,515

    that just sucks that these 410 ductless mini...

    that just sucks that these 410 ductless mini splits decided to non-conventional size fittings. was in the middle of no where (1.5 hours drive) today installing an LG unit.

    critical charge only .....
  18. Replies
    51
    Views
    7,256

    nope... I was asking ... so if I'm reading...

    nope... I was asking ... so if I'm reading correctly. it's not possible for a wrong charge alone to contaminate oils?
  19. Replies
    51
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    7,256

    what an interesting topic ... no it's not a good...

    what an interesting topic ... no it's not a good idea, but what do you do when you find a unit marked with all sorts of different refrigerants?

    no telling what's inside. even if one evacuates...
  20. Replies
    881
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    29,774

    zimmerman makes a good teflon man ... as in...

    zimmerman makes a good teflon man ... as in nothing sticks to him
  21. Replies
    881
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    29,774

    Woman accuses Zimmerman of child molestation A...

    Woman accuses Zimmerman of child molestation

    A woman identified only as Witness 9 tearfully told Florida authorities investigating George Zimmerman for the fatal shooting of an unarmed teen that...
  22. Thread: inficon tek mate

    by cy
    Replies
    11
    Views
    1,448

    buy an H-10 off ebay for about $100 or less...

    buy an H-10 off ebay for about $100 or less
    they've been making em for 20+ years, same super rugged design.
    so odds are in your favor a used H-10 is going to work.

    H-10 will out perform...
  23. Replies
    45
    Views
    3,900

    Yellow Jacket Accu charge or Robinair...

    Yellow Jacket Accu charge or Robinair Dial-a-charge heated charging cylinder should work fine.

    this Accu charge for R134 has 1/4 oz for each mark. some come with 1/8 oz markings.
    ...
  24. Replies
    881
    Views
    29,774

    Zimmerman granted $1 million bond Prosecutors...

    Zimmerman granted $1 million bond

    Prosecutors had asked for bond to be denied, or else for it to be set at $1 million.

    Lester found that Zimmerman had manipulated the system, but that it was...
  25. Replies
    62
    Views
    4,295

    sorry for your loss...

    sorry for your loss...
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