How important are name plates...Very! Story of one of my fuck ups when 410a sort of was newer. Had on my gauges on a unit and thought it was R22 and running overcharged. Got my recovery cylinder and hooked it up to the discharge line, opened up my gauges to relieve pressure into the cylinder to lower the charge. It then started to freeze up and I was seriously confused until I looked at the name plate and saw 410a stamped on it. Now, I always check what refrigerant I'm working with for that particular application. #teachme

Posted by HVAC Know It All at 2021-03-24 20:45:29 UTC