im trying to recharge my air condition

where is the valve at, to put the freon at??i cant find it any where and its not on the manual.

Oh jeez....
There is a reason why mechanics must take special courses to qualify to service AC systems.
Finding the valve is the least of your problems.
You need to evacuate the system to remove all the air and moisture from the system. You need to pressurise it with nitrogen and test for leaks.
Then you recharge the system and use a freon detector, again, to test for leaks.
If you don't evacuate the system, and test for leaks, you are wasting the freon.
If you knowingly put freon into a leaky system, you are breaking the law and blowing a big hole in our ozone layer.