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Posted by Noon-Air on August 23, 2008, 9:03 am
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> >>> KJPRO wrote:
>
>
> >>>>>> Holy Crap,
> >>>>>> What's with all this talk about silver solder, stick solder,
> >>>>>> Oxy/ACE,
> >>>>>> yadda, yadda....
> >>>>>> That stuff is uh, nice, but certainly not neccessary for 'this'
> >>>>>> task.
> >>>>>> - Score the pipes, fittings outside / inside with steel wool, clean
> >>>>>> em' off with a dry 'clean rag'.
> >>>>>> - Fit together parts/joints, flux with water base (non-Acid) flux
> >>>>>> - Turn on the $10.00 propane torch, heat the joints until the flux
> >>>>>> discolors , wet the seams really nice with 95/5 solder.
> >>>>>> Bob's your uncle....
> >>>>> That's nice, but technical bulletin # TB 98-04B Dated 11/12/98
> >>>>> states
> >>>>> not
> >>>>> to use low temp (soft) solder on R410a units.
> >>>>> Situation: It causes a jell-like acidic substance that will plug
> >>>>> metering
> >>>>> devices, strainers, and feeder tubes.
> >>>>> Solution: Units must NOT be installed with flux and soft solder.
> >>>>> Units
> >>>>> MUST
> >>>>> be brazed using silver bearing or non-silver bearing brazing
> >>>>> material
> >>>>> such
> >>>>> as sil-fos or plos-copper on all copper to copper connections.
>
> >>>> Man,
> >>>> You're quoting regs from 10 years ago !
> >>>> You guys sure have some strange regulations down there.... Also,
> >>>> where would the acidity be coming from if you are using a non-Acid
> >>>> flux ? The chemical properties of 95% tin and 5% Zinc SOLDER is
> >>>> 'completely' different than the zinc coating say,.. on the inside/
> >>>> outside of a pipe ! Companies here have been installing 60 gallon
> >>>> water tanks (1000's of them yearly) the same way with no issues. I
> >>>> can't understand why anyone would use "Copper Phos" (is that what you
> >>>> meant ?) or any stick for that matter on a simple copper to copper
> >>>> connection, and especially a tiny 1/8th connector in a refrigeration
> >>>> scenario.
>
> >>>> The only reaon anyone wouldn't use the "Far less expensive 95/5" is
> >>>> because they don't have the skills to keep the pipe and connectors at
> >>>> a constant temperature which is far LOWER than stick or silphos. The
> >>>> application in question just does NOT warrant Stick (silver bearing
> >>>> solder maybe...) but Copper PHosphate and High temp stick ?......
> >>>> Overkill.
>
> >>>> Cheers,
>
> >>>> /FC....
>
> >>>> Yeah, following manufacture's installation instructions is
> >>>> "Overkill".
> >>>> <rolleyes>
>
> >>> It is really irritating to have units that were brazed to code with
> >>> 15-Silver phos 20 to 30 years ago and not one damned call to top them
> >>> off. Christ, a Guy could starve to death doing it right. I wonder if
> >>> maybe we could borrow a few $thousand from the guys that get call back
> >>> after call back due to shitty work practices. Next, some hack will pop
> >>> up and try to sell us on superglue, because you can save on using
> >>> nitrogen.
>
> >> What's nitrogen for??? :-)
> >> Stormy is now searching Nitrogen and HVAC...
>
> > Next thing you know, he'll be looking for "vacuum pump"
>
> He probably pulls a hose from the Pinto... aint that good enough?- Hide
> quoted text -
>
Cheeeerist....,
I could put together copper pipe better than most of you 'loudmouth's
with a freaking 100 watt soldering iron.....
heh,heh....
/FC...
Knock yourself out sport....
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