u/UnMeaningnessName

Quick crash course for understanding refrigerants as a commercial installer.

Typical refrigerant :(410-a) requires a pitch back to the compressors for oil return [this is this crux of man made refrigerants], along with an invert at the top of each riser that's the size of the rise, and a trap at the bottom of each riser thats the size of the run.

Glycol :Flows like water, needs to pitch towards coils, typically uses very large lines, no inverts or traps necessary, requires a special solenoid to install per coil.

Co2 :High pressure. Inverts and traps aren't necessary because of the pressure and rapid movement of gas. Needs a ton of check valves, and redundancy to not blow up.

Ammonia :Nah, fuck that shit.

reddit.com

u/UnMeaningnessName — 3 days ago

▲ 88 r/refrigeration

Why do they do this to us!?

As an installer, there is nothing more infuriating.

Do the manufacturers even consider the install process?

What do they really think we intend to do with this?

Ended up sweating it off and fighting for a while to sweat a fitting back on, while sweating about burning all the cables and fins....

And what fucking idiot decided that 'Hey instead of leaving out pinched off stubs to easily tie into, let's make it short, add a short radius street 90, burn it in with hard solder, then cap it off with soft solder.'

You absolute dumb fuck.

Do better hussmann.

u/UnMeaningnessName — 4 days ago