How is target superheat table generated for R22 HVAC system

[jimboz]

It seems the practice is to enter the table with evaporator air intake wetbulb temp and condenser ambient temp. I'm trying to understand the theory that translates these readings into the proper target superheat.

Thanks

 

[Lnewqban]

Please, see:
https://www.hvacbrain.com/blog/troubleshooting-hvac-system-using-superheat-measurements/

 

[jimboz]

Yes, I'm somewhat familiar with that article... the question is, how is the table generated?