What outputs do i use to trigger this model.

Name the prop_dynamic something, then find the name of the animation you want it to play (The model tab under properties is good for finding animations). Then have another entity fire an output like

On X>[prop_dynamic name]>setanimation with a parameter override of whatever the animation's name is.

X will vary depending on the entity used to fire the output (for a trigger it would be OnStartTouch, for a logic_auto it would be OnMapSpawn

Thanks a million Coppermantis, it now works.