Step 5: AC Control Unit - Mechanical Construction
Mount the terminal block to it about midway up. To make this fit in the larger box you may need to do some additional cutting on one box or the other. Picture 13 and Picture 14 show details. Basically, your goal is to hold the parts firmly so they can't short out. The stiff, 14 gauge copper wire will help with this.
The diagram AC Control Hook Up and Picture 14 show how to hook things up. When you're done, the unit should look like Picture 5.