The refrigerant flowing in the inlet line is under extremely high pressure and the slightest imperfection in the soldered joint will allow the freon to escape into the environment.
Soldering aluminum ac lines.
Soldering requires a torch and solder.
Nathan demonstrates the complete air conditioning hose assembly process step by step.
Since i was taught only braze 410a line sets due to the higher pressure.
2 pieces of aluminum air conditioning duct are brazed with super alloy 5 aluminum repair kit and an oxyacetylene torch.
This video will explain to you in details how to silver solder braze copper the correct way so you can do it yourself and not have to pay an expensive plum.
In terms of torches there are two main types.
The cheap kind is a mapp gas or propane torch that uses a one time use 14 ounce tank you can buy at any hardware store and is also referred to as a turbo torch.
Although these aluminum parts are of differing thicknesses super alloy 5 bonds the metals quickly and easily.
At first i found myself septical.
20 how to braze aluminum a c lines with weld strength.
Staybrite 8 silver bearing solder.
The cheap kind and the more expensive kind.
Due to the high melting point of these soldering brazing compounds the lines must be purged with inert gases such as nitrogen to prevent oxides forming in the tubing.
If jointing tubing can be accomplished at lower temperatures the need for high heat and nitrogen purging can be eliminated.
Silver soldering the copper lines to an air conditioner s condenser unit is not rocket science but it does require attention to detail.