Refilling completely empty a/c
 

I recently installed the a/c system from a parts car I had to my daily
driver that did not have a/c (from a 1994 Honda Civic LX to a 1993
Civic VX) it was a direct bolt in. All the o-rings and such are in
excellent condition. However, due to my lack of experience, I am now
unsure how to charge it up. It requires 19.4oz. Any help is
appreciated.

Thanks,
Timothy