I have replaced the evaporator in the refrige side and needed to evac and recharge. I have all equipment and have evacuated the system and left it overnight to see if it was leaking...still at same neg pressure so im confident there are no leaks. I am unclear on how to charge the system now and need to know the procedure to do it right...i have a good idea but if anyone knows the details that would be great.

Does the fridge need to be on when charging?
Do I charge to Zero pressure?
What are the right pressure levels?
and anything else that might help =)

Thanks