Hey! I tried the demonstrated soldering method for 1/4" refrigeration lines and tees, with stay-brite #8 and tinning flux instead of stay-clean flux. It did great. Actually much better than stay-clean. I dont know about tinning flux going in the pipe and contaminating the system. what is the recommended amount of tinning flux to apply on the joint? And ever experienced tinning flux contaminating the system?
The correct amount to use is working the flux into the brush until the brush bristles are nice and evenly coated. Being that the joint is brought together before the flux and solder are applied the risk of it getting into the system and contaminating it is very very small. In the 16-plus years I have been doing this I have never seen it hurt a system. :)
I have seen folks write that they wouldn’t use staybrite 8 for a compressor discharge line due to the heat produced by the compressor potentially weakening the lower temperature solder. What is your opinion?
The melting point of Stay-Brite is usually between 430 to 530 Fahrenheit. The discharge line should never get this hot even when there is non condensable gas in the system. Remember we are talking about residential refrigeration not commercial. The compressor is also thermally protected by an overload to prevent it from reaching temperatures this high. If that joint fails from heat the compressor and or over load has experienced catastrophic failure.
Hello, here at the local suppliers they sell the silver rod with 0%, 5% and 15% silver. Wich are the most recommended for brazing or soldering? cooper to cooper in refigeration.
You can find them at shop.fredsappliance.com White brazing flux and stay silv #15 rods for brazing. Oaty #95 flux and silver bearing solder for soldering.
Unfortunately no. Though it is possible it is not recommended. The reason is that the evap is so thin walled getting it up to temp before it melts is difficult. Also, if one hole has appeared more are likely on the way. Patching a hole in a rotting evaporator is just delaying the inevitable which is more holes in the future.
Hello! Thanks so much for dropping us a line. While there are techniques to solder aluminum, it does require quite high temperatures. So instead, we use Lokring for those connections. Learn more here: www.vulkan.com/en/branches/refrigeration-and-air-conditioning/repair-of-refrigeration-appliances
I don't think that is how you supposed to solder a joint. Don't you solder refrigerant pipes in the same way as soldering a copper water pipe joint, but without applying flux on the female end?
Full of information for a technician. Thanks for information.
Hey! I tried the demonstrated soldering method for 1/4" refrigeration lines and tees, with stay-brite #8 and tinning flux instead of stay-clean flux. It did great. Actually much better than stay-clean. I dont know about tinning flux going in the pipe and contaminating the system. what is the recommended amount of tinning flux to apply on the joint? And ever experienced tinning flux contaminating the system?
The correct amount to use is working the flux into the brush until the brush bristles are nice and evenly coated. Being that the joint is brought together before the flux and solder are applied the risk of it getting into the system and contaminating it is very very small. In the 16-plus years I have been doing this I have never seen it hurt a system. :)
just about to enroll in the fringes course. do you guys teach soldering in the online course?
we do! there's a whole section dedicated to soldering and practice
Thanks for replying guys. I’ll start from zero, hope to become a hero in appliances
I have seen folks write that they wouldn’t use staybrite 8 for a compressor discharge line due to the heat produced by the compressor potentially weakening the lower temperature solder. What is your opinion?
The melting point of Stay-Brite is usually between 430 to 530 Fahrenheit. The discharge line should never get this hot even when there is non condensable gas in the system. Remember we are talking about residential refrigeration not commercial. The compressor is also thermally protected by an overload to prevent it from reaching temperatures this high. If that joint fails from heat the compressor and or over load has experienced catastrophic failure.
Hello, here at the local suppliers they sell the silver rod with 0%, 5% and 15% silver. Wich are the most recommended for brazing or soldering? cooper to cooper in refigeration.
Can't go wrong with 15% It's more expensive but more versatile allowing you to braze copper and steel.
@@fredsapplianceacademy thanks for your quick replay.
Will these work?50/50 SW Solder and Oatey H-2095 Water Soluble Tinning Flux
No. 50/50 solder will often say right on it not for plumbing.
So what do i use?StayBrite 8 is too expensive.I also dont have a torch for brazing.Only a solder Mapp gas@@fredsapplianceacademy
I need to replace a condenser in my refund.
What solder wire can you use? And should I use any paste with it?
You can find them at shop.fredsappliance.com
White brazing flux and stay silv #15 rods for brazing. Oaty #95 flux and silver bearing solder for soldering.
What type solder wire ans brazing rod you are using?
low temp silver bearing solder and stay-silv #15
Can you use the solder technique for a small patch on evaporator coil?
Unfortunately no. Though it is possible it is not recommended. The reason is that the evap is so thin walled getting it up to temp before it melts is difficult. Also, if one hole has appeared more are likely on the way. Patching a hole in a rotting evaporator is just delaying the inevitable which is more holes in the future.
@@fredsapplianceacademy thank you for the advice
@@fredsapplianceacademy thanks
That’s only for copper what do use to solder aluminum
Hello! Thanks so much for dropping us a line. While there are techniques to solder aluminum, it does require quite high temperatures. So instead, we use Lokring for those connections. Learn more here: www.vulkan.com/en/branches/refrigeration-and-air-conditioning/repair-of-refrigeration-appliances
Thanks
So in either method, the metal is pushing flux into the system when it wicks in.
I don't think that is how you supposed to solder a joint. Don't you solder refrigerant pipes in the same way as soldering a copper water pipe joint, but without applying flux on the female end?
We can assure you what you saw in the video is accurate. :)
You actually do not apply the flux on the tip of male end according to Harris company.