How to wire P & S 2 in 1 switch TM813-wcc6

SOURCE: Have switch 691-WCC6.

Question is posted under switch, but asks about outlet.
Outlet is where you plug extension cord for example.

Usually screws are color-coded.
Outlets have brass and silver screws.
Without testing wires, trying hooking wires to same color screw they came from.
If breaker blows, then take off one wire and try again, or test wires to see what each is connected to.
As general rule with newer wiring inside outlet box, code says Black wires are Hot and go to brass screws, White wires are neutral and go to silver screws.
Older wiring could be very different especially if wiring was not done by code.
Use cheap circuit analyzer from home center to help diagnose outlet problems.

Add a comment with photo of your old wiring device, plus wiring.
http://www.fixya.com/support/r6568559-post_photograph_fixya_questions_answers

SOURCE: I'm want to install a

More information is needed.
Unknown what wiring device was there before, and which wires were connected to which screw terminals.
Wire color is not as important as knowing what wire is for.
If both white wires were connected together before, then they need to be put back same way.
Separate wires. Turn on power. Test each wire to bare ground. Tester lights up on Hot wire. The Hot wire is usually black.
In back of box are white wires twisted together and covered with wire nuts. These are the neutrals.
Test black hot wire to neutrals and tester will light up. If box does not have neutrals, then device cannot be installed to code.

Open following link for illustration of wiring:
http://waterheatertimer.org/How-to-wire-combination-switch-outlet.html