HVAC 083 The 3 position service valve 

Just remember, your never to old to learn something new. A few years of applied and active learning outweighs years of experience in rules of thumb and shortcuts. One of my students years ago was a retired pilot from Venezuela at 72 years young. You got this! I'm glad that my videos can help. Keep at it and never stop learning and never give up.

@neiltasselmyer5711 ...and remember that you are an inspiration for the younger guys. I know a lot of people in their 40s and 50s who struggle in their current jobs and afraid to learn something new , and people like you show that the limits are in our minds and as Ty said its never too old to learn something new.

Thanks It was a little tricky getting those cut open.

@@love2hvac Yeah I could only imagine how tricky it is to cut these sections. Definitely NOT easy!

Thank you

I'm not but I do appreciate the complement

These service ports are not designed to be used for pressure controls. Unlikely an engineer would design that. I often see service personnel try to add pressure switches here. We have been to many jobs where we had to properly install the correct switch on its dedicated port.

​@@love2hvac Yes, I work on large ships where the engineers most of the time arent refrigeration experts but nevertheless it makes up 5% of their work. Due to the many different equipment and systems they have to work with they are technical generalists. (Diesel Engines, Boilers, Hydraulics, Pneumatics, Refrigeration, E&I, Automation. etc. etc.) This leads to sometimes seemingly incompetent decisions, although i cant fully blame them. (It's hard being an expert in all those field at the same time.) It is the sole reason I self study and find so many sources like HVAC School & your channel to learn more practical things and try to remember them by the time i need it. Do you have a patreon or similar? You deserve support.

Keep going in the series, I cover vacuum in pretty deep detail with over 13 videos. Leaks are in the works.

that really means a lot from you. I'm honored. Thank you

Often on residential equipment the port is connected with the line set outside of the equipment. However I'm refrigerating condensors, the port is often with the condensor side. It will work in either direction but it's important to understand that the service port will be connected to the pipe at the top when the valve is closed (front seated). That way you won't get useto just one method.

@@love2hvac Thnk you, I appreciate your response! reason I ask is I ran into a unit where the condenser side entered the top as well as the compressor inlet on the low side. I don't see how that will work when trying to isolate the 2 sides other than being dependent on the compressor valves. Seems to to me the suction line should enter the top and exit the bottom to the compressor

Residential yes, the condensor is usually large enough to handle it. The microchannels would not be able to. Although there was recently a comment of a person installing walk in freezer equipment without a receiver.