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  1. Replies
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    1,244

    nitrogen or CO2 works great for brazing. don't...

    nitrogen or CO2 works great for brazing. don't depend on regulator to meter flow, crack your valve to set flow to where you just barely hear hissing from outlet side.

    CO2 is easier/cheaper to...
  2. Thread: Refrigerant hoses

    by cy
    Replies
    54
    Views
    3,527

    perhaps a hybrid of 5/8" or 3/4" copper tubing...

    perhaps a hybrid of 5/8" or 3/4" copper tubing for main run with small length of flexible tubing on end(s), but that would be adding additional leak points .. shouldn't be too hard to find...
  3. Replies
    38
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    2,241

    thanks .. just found the appion mega flow hoses....

    thanks .. just found the appion mega flow hoses. good idea to use YJ short ball valve hoses.
    just trying to simply by custom making up one set of 1/2in hoses to short hose with ball valve. ...
  4. Replies
    45
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    1,758

    +1

    +1
  5. Thread: Refrigerant hoses

    by cy
    Replies
    54
    Views
    3,527

    this opens up all sorts of possibilities of using...

    this opens up all sorts of possibilities of using low costs teflon hoses for vac only .. already duplicated fast evac rig by making my own T fittings up along with using 2x 3/8 hoses. this would...
  6. Thread: Refrigerant hoses

    by cy
    Replies
    54
    Views
    3,527

    Wow .. Welch 8907 pump ... NICE .. hmmm you...

    Wow .. Welch 8907 pump ... NICE ..
    hmmm you recovered it by lapping vanes .. that's good info to know
  7. Thread: Refrigerant hoses

    by cy
    Replies
    54
    Views
    3,527

    you have to be able to isolate micron gauge from...

    you have to be able to isolate micron gauge from hoses and vacuum manifold. closing valves on core removal tool. accomplishes that. fun is when access ports are located so tight it's not possible to...
  8. Replies
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    2,241

    bump .. so what's the best hoses with ball valves...

    bump .. so what's the best hoses with ball valves available?

    does anyone make 3/8in or 1/2in hose with ball valves and 2x 1/4in fittings for hi and low ports.
    yes hoses will be bulky, but using...
  9. Thread: Refrigerant hoses

    by cy
    Replies
    54
    Views
    3,527

    what a killer idea ... got all sorts of hose fab...

    what a killer idea ... got all sorts of hose fab shops local
  10. Thread: Fluke 9040

    by cy
    Replies
    8
    Views
    400

    pretty handy if you've got access to motor before...

    pretty handy if you've got access to motor before it goes down.
  11. Replies
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    3,210

    just scored a Little Giant Ultra Lite non...

    just scored a Little Giant Ultra Lite non conductive ladder .. ultra lite is marketing speak for heavy .. 39lb for 17ft version below. which is 10lb lighter than 49lb Little Giant fiberglass version....
  12. Replies
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    643

    thanks and congrats for finishing the LG course....

    thanks and congrats for finishing the LG course. IMHO one gains a competitive advantage knowing how to work on ductless mini-splits.
  13. Replies
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    643

    there's a plate on outside unit with correct...

    there's a plate on outside unit with correct charge. figure 25ft run per circuit for factory charge. you really need to download the installation manual for your particular model.

    yes the only...
  14. Replies
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    3,210

    Another case of a faulty Telesteps ladder causing...

    Another case of a faulty Telesteps ladder causing a fall, this time resulting in spinal injury for home inspector Rick Neveaux. Rick, hope you get better soon.


    Dear CAHPI(BC) member,

    I want...
  15. Replies
    35
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    3,558

    looks like feedback on these new Hilmor digital...

    looks like feedback on these new Hilmor digital gauges are not too good ...
  16. Thread: Megger readings

    by cy
    Replies
    33
    Views
    1,593

    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 ...
  17. Replies
    30
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    1,629

    good grief!~

    good grief!~
  18. Replies
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    2,473

    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...
  19. Replies
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    3,121

    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...
  20. Replies
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    3,121

    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%...
  21. Replies
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    3,121

    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.
  22. Replies
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    3,121

    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...
  23. Replies
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    3,121

    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...
  24. Replies
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    3,121

    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...
  25. Replies
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    3,121

    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...
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