Why do people die from ammonia, watch this

[RANGER1]

These guys live day by day, if they make it home just lucky day, like policeman or military.
Looks like normal day walking past multiple issues to get to breakdown (reactive).

Everyone has a few old places like these, but where do you draw the line?


A Few Refrigeration Issues On An Ammonia System - YouTube

At end of video just pulls the plug.
Place should be shut down.

Flooded Evaporator Ammonia valve replacement In A Tight Spot - YouTube

In both videos does not clean strainer, second one bolt missing from strainer, also draining oil with some old valve that may or may not close.

16 Cylinder Ammonia compressor Rebuild - YouTube

No check high level, why did it get liquid, no check oil trip switch, why would you not prime crankshaft with oil before start to avoid dry running not showing the important stuff