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Thread: Beer can cold

  1. #14
    Join Date
    Jun 2011
    Location
    Puget Sound area, Wa
    Posts
    130
    Good explanation DeltaT! Makes a lot of sense.

  2. #15
    Ya Delta, I installed loads of resi a/c systems without a a vac pump, we purged the line with 22. Those things lasted longer than the junk you buy today.
    You young, high tech guys could learn a thing or two about the way it was.
    I can still charge a unit without a bunch of measurements.
    Hey cockroach, don't bug me! ©

    www.AskTheDiceman.com

    www.TheColdConspiracy.com

    www.Pennwood-HVAC.Com

    Bring Em Home....

  3. #16
    Join Date
    Dec 2010
    Location
    new jersey
    Posts
    364
    Delta t..... Way to go!!!

  4. #17
    Join Date
    Jun 2005
    Location
    Winston-Salem NC
    Posts
    1,133
    Thanks delta.
    That explanation hit the spot.

  5. #18
    Join Date
    Mar 2007
    Location
    wedged in freezer shelf
    Posts
    6,578
    Quote Originally Posted by sprmktrefertech View Post
    Ha..ha..ha..good one use the label and wrap it around the suction line ...when the mountains turn blue your good....
    Its a new label.
    The Super Cold stripe activates at a colder temp than the Mountains

    http://www.youtube.com/watch?v=ygxO3SoklsY&NR=1
    “If You Can Dodge A Wrench You Can Dodge A Ball”

  6. #19
    Join Date
    Nov 2001
    Location
    Seattle, WA
    Posts
    7,751
    Quote Originally Posted by Diceman View Post
    Ya Delta, I installed loads of resi a/c systems without a a vac pump, we purged the line with 22. Those things lasted longer than the junk you buy today.
    You young, high tech guys could learn a thing or two about the way it was.
    I can still charge a unit without a bunch of measurements.
    Dice
    Don't get me started..........Few years ago I was hired to help this fairly new guy replace an RV valve in a heat pump.

    He said he'll do it using heat paste. I said you have a good chance of overheating the valve and ruining it. It's his job so I went with what he wanted to try plus he's priced it out for two men for 8 hours, so we had plenty of time to do it over.

    He put the torch to the metal, recharged and other stuff, started it up and the valve woudn't reverse. Told him to go get another and I'd have the system ready when he got back with the new valve and I'd show him the way to do it with 99% working chance.

    So I did it and showed him the how's and why's of doing it with wet rags. Time to recharge and he's off to his truck to get scale and other stuff. I said no need just recharge the system using the balance method...my term.

    Meaning, as you know, you are looking at ALL factors of the system, not just the weight of the refrigerant or the SH or other stuff. Said he never heard of such a thing so I let him do it while I watched.

    System started working based on his individual ability to sense, feel, recognize, hear and measure all the goodies of that little 3 ton heat pump.

    This young guy was sooooooooo impressed. Explained to him that this probably was the first time in his 5 years of field experience that he actually saw a system as a whole and how it actually worked.

    Said he'd work with me anytime. His boss woudn't let him again..........

    That's one of the times I knew this field had changed......
    "The American Republic will endure until the day Congress discovers it can bribe the public with the public's own money.
    - Alexis de Toqueville, 1835

  7. #20
    Refrig techs used to use the compressor to pull the vac, remember?
    Hey cockroach, don't bug me! ©

    www.AskTheDiceman.com

    www.TheColdConspiracy.com

    www.Pennwood-HVAC.Com

    Bring Em Home....

  8. #21
    So we're not talking about beer then...

  9. #22
    Join Date
    Jan 2008
    Location
    Texas
    Posts
    1,676
    I also remember slowly charging cap tube systems slowly until you feel liquid coming back then letting a little out. Kind of like charging a refrigerator. When it reaches normal temps charge slowly until the frost line leaves the cabinet then let some out until the frost goes back into the cabinet.

  10. #23
    Join Date
    Nov 2001
    Location
    Seattle, WA
    Posts
    7,751
    Quote Originally Posted by Diceman View Post
    Refrig techs used to use the compressor to pull the vac, remember?
    Yea, I forgot about that. In the Air Force we also did the domestic stuff and actually used a "sealed" (a new term back then) refrigeration compressor as a vacuum pump. Those were the days.
    "The American Republic will endure until the day Congress discovers it can bribe the public with the public's own money.
    - Alexis de Toqueville, 1835

  11. #24
    Join Date
    Nov 2001
    Location
    Seattle, WA
    Posts
    7,751
    Quote Originally Posted by Beercanman View Post
    So we're not talking about beer then...
    You should be telling us. You are the qualified dude here.........
    "The American Republic will endure until the day Congress discovers it can bribe the public with the public's own money.
    - Alexis de Toqueville, 1835

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