Copyright © 2019 Nortek Security & Control LLC30Install the Retaining Wall Bracket and Connect the AC Power SupplyAfter you have completed all of the required system wiring and connected the battery backup, install the wall bracket andconnect the AC power supply to the wall receptacle.Note: When power is initially applied to the panel it should not be face down. In addition, do not touch the panelbuttons until after the panel is powered up.Note: For compliance with ANSI/NFPA 70: National Electric Code in the United States, you must install the powersupply retaining bracket. Use of the power supply retaining bracket is not required in Canada.To install the wall bracket and connect the AC power supply:1. Locate an unswitched wall outlet for the plug-in power supply. Do NOT connect the power supply to the receptacle.2. Peel the adhesive backing off the power supply’s retaining wall bracket and attach it to the receptacle.3. Secure the bracket to the wall using the fastening screw.4. Spread the ears of the retaining bracket apart. Then plug the power supply into the outlet.Retaining Wall Bracket—Standard-Style Duplex Receptacle Retaining Wall Brackect—Decora-Style Duplex Receptacle5. Thread zip ties through the slots on the power supply and fasten them securely.Wall Bracket Zip Tie—Standard-Style Duplex Receptacle Wall Bracket Zip Tie—Decora-Style Duplex ReceptacleWith the installation complete, you can begin programming sensors and peripherals for use with the GC3 Panel. See“Programming Sensors & Peripherals.”