Understand All about Sub cooling

Hi Friends!
This video, we going to understand, all about Sub cooling.
What is Sub cooling?
Happening in Which part of System?
Benefits of Sub cooling?
Why the correct Sub cooling is an important?
Possible Cause for Low Sub cooling?
Possible Cause for High Sub cooling?
How to measure the Sub cooling?
Diagnosis use Sub cooling.
what is the Normal Sub cooling Range?
Important points to Take note.