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AC_Hacker · 10-17-09, 11:17 AM

Nice tools, way better than anything I'm using. Everything I'm using is 3rd hand (or more) hand-me-downs, with the exception of my micron gauge.

Yeah, the nitrogen purge tank will come in handy if you decide to continue hacking vapor-compression devices...

When you braze up copper lines, copper oxide will form in the presence of oxygen, and flake off inside the system and can foul the tiny expansion orifice, so you slowly flood the tubes with nitrogen while you braze...

I have heard of one guy who flooded his system with propane gas while he was brazing, to avoid the copper oxide. Seems like an unsafe practice to me.

Best regards,

-AC_Hacker

10-17-09, 11:17 AM	#45
AC_Hacker Supreme EcoRenovator Join Date: Mar 2009 Location: Portland, OR Posts: 4,004 Thanks: 303 Thanked 723 Times in 534 Posts	nice tools... Nice tools, way better than anything I'm using. Everything I'm using is 3rd hand (or more) hand-me-downs, with the exception of my micron gauge. Yeah, the nitrogen purge tank will come in handy if you decide to continue hacking vapor-compression devices... When you braze up copper lines, copper oxide will form in the presence of oxygen, and flake off inside the system and can foul the tiny expansion orifice, so you slowly flood the tubes with nitrogen while you braze... I have heard of one guy who flooded his system with propane gas while he was brazing, to avoid the copper oxide. Seems like an unsafe practice to me. Best regards, -AC_Hacker Last edited by AC_Hacker; 10-17-09 at 11:21 AM..