This action and the uniform coating thickness minimize unwanted flux inside the connection. For brand new air conditioning 410a line sets Staybrite 8 silver Bearing Solder when done correctly can speed up the time of installing new line sets. I burn wood, it smells good! I silfos everything. When brazing copper to brass or to steel a flux is always required. I've removed a fair amount of copper in both refer systems and hydronic systems. I have always thought the flux was the main problem also. I'm not risking my compressor windings to flux acid moving throughout the system eating away at that varnish insulating material. And brazed with nitrogen is the cleanest inside by far. How well can a 5,000 BTU air conditioner cool a 300 square foot room. There's been the rare occasion on ref line repair when there was no way I was brazing; carpenter shot 5 16cc nails in our line set. No refrigeration system should ever see pressure anywhere near this yet this is just to let you know how strong the pipe and fittings are. There's been the rare occasion on ref line repair when there was no way I was brazing; carpenter shot 5 16cc nails in our line set. Still, following these simple steps can ensure leak-free connections and cut out time-consuming callbacks. When brazing copper to brass or to steel a flux is always required. 'à”œ‚3r�“çày8c�u²œœƒ…,`ÆgCüŠ¼ Since I was taught only braze 410a line sets due to the higher pressure. Couldn't do it with my MC tank, even with a rose bud. A Staybrite 8 joint handles more pressure than a Sil-fos brazed pipe connection. After brazing remove flux residue from parts by washing with a wet rag. Has anyone tried that tried or heard issues with that Red stuff ? Heavy vibration creates havoc on a soldered joint. If you think about it, where do we most often see leaks? Such as a computer server system I just repaired the leak on. It is a tin-silver alloy and rated for 410a. Easier to protect refrigerant valves with lower melting temperature than required to create a braze joint. The burst rate of a Staybrite fitting is around 3800 PSI. A brazed fitting burst rate is only 1800 PSI. For a tin-knocker, I contacted the mfg of the units he had installed. Most people prefer nitrogen from what I've been reading, but it is becoming too hard or too expensive for me to get it. If you want to get involved, click one of these buttons! In some instances it was required that I use stay #8 instead of brazing the lines. If flux is used the flux will turn semi-transparent close to brazing temperature. Products like 15% silver content Stay Silv® 15, or economical Dynaflow® are excellent choices.

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