Flowing nitrogen while brazing
Wanted to ask yalls opinion on flowing nitro while installing units. I saw a video from a guy I respect his knowledge a lot on refrigeration and his opinion is realistically on most resi split systems or rtus its not really needed. Think about it you only have a handful of joints your brazing and when installing a split system and same on rtu repairs it washes out quick and is too small to make a difference.
He said hes never had a unit have an issue from carbon build up. I also for years brazed without nitro and never ever had a call back. Now he did diferanterate between small cap tube reach ins and vrf systems with tons of fittings those you probably should due to amount of fittings or how small the metering device is.
Now I kinda agree with him but since I started my company ive been brazing with nitro out of paranoia. Im a little bit of a paranoid worry wart when it comes to my buisness so I will probably continue to no matter what but what's yalls experiences? Have you ever actually seen an issue created by not brazing with nitro.
Edit: I'm not making an argument aginced brazing with nitro as I've made several comments already you already have to pull the tank out to pressure test so why not. However let's be honest brazing with nitro is a fairly recent thing in the span of refrigeration techs. Lots of us started without flowing nitro usually out of ignorance. Brazing with nitro when I started wasn't even brought up didn't hear about it after I had already brazed tons of units. Most techs are guilty of brazing without nitro more systems have been installed without it than with it. All I'm asking is how often have yall actually seen issues from it.