TM  10-6640-215-13 4-25.  REMOVE/INSTALL RECEPTACLES -continued. INSTALLATION Install Receptacle.  See figure 4-14. a. Connect tagged wires to receptacle and tighten terminal screws.  (Connect ground wire (green) first). b. Guide new receptacle into wire guide.  Be sure wires are not kinked or strained. c. Install receptacle mounting screws. d. Install cover plate screw(s). e. Open appropriate circuit breaker. f. Plug an electrical appliance to verify proper operations of receptacle 4-26.  REMOVE/INSTALL ENVIRONMENTAL CONTROL UNIT REMOTE CONTROLS.  | This task covers: a.  Removal b.  Installation INITIAL SET-UP: Tools Required General Mechanics Tool Kit, (Appendix B, Section III, Item 2) General Safety Instructions WARNING ELECTRICAL SHOCK Before  performing  any  maintenance  actions  on  electrical  equipment,  ensure  all  electrical  power has been turned off.  Death or serious injury may occur from failure to do this. REMOVAL Remove Environmental Control Unit (ECU) Remote Control.  See figure 4-15. a. Turn the ECU mode switch to the off position. b. Open appropriate circuit breaker in power panel no.  2. c. Disconnect electrically by removing canon plug. d. Remove  defective ECU remote control by removing eight screws, flatwashers, lockwashers and nuts. INSTALLATION See figure 4-15. a. Connect ECU remote control electrically. 4-58