Greetings Jeric,

Actually this is probably one of the few items that can be removed without discharging the system. It's only a threaded temp sensor so be careful when installing it if you do happen to remove it. The brass threaded portion has a habit of breaking if you apply to much torque to it so slightly snug is tight enough. The other item located on your receiver dryer is a freon pressure switch, and can be identified because the switch looks like it takes a twelve sided socket to get it off. This one does have pressure going to it so don't mistake the two.

Charles