Appendix J: Multi-Powerwall+ Installations

      Powerwall+ systems can be installed with additional Powerwall+ units and/or Powerwall 2 AC units.

      • Multi-Powerwall+ Systems
      • Powerwall+ Systems with Powerwall 2 AC
      • Powerwall+ Installation Manual with Backup Switch
      • General Warnings and Information
      • Specifications
        • Powerwall+ Specifications
        • Mid Circuit Interrupter Specifications (P/N MCI-1) PV Rapid Shutdown Equipment (PVRSE)
        • Mid Circuit Interrupter Specifications (P/N MCI-2) PV Rapid Shutdown Equipment (PVRSE)
        • Backup Switch Specifications
      • Registering Powerwall+
      • Powerwall+ Overview
      • Site Requirements and Pre-Install Guidance
        • Powerwall+ with Backup Switch Installation Requirements
        • Powerwall+ Physical Requirements
        • Powerwall+ Operating Temperature Range
        • Backup Switch Physical Requirements
      • Preparing for Installation
        • In the Powerwall+ Packaging
        • In the Backup Switch Box
        • Required Tools
        • Required Supplies
        • Service Parts, Orderable Parts, and Accessory Kits
          • Powerwall+ Service Parts, Orderable Parts, and Accessories
          • Backup Switch Service Parts, Orderable Parts, and Accessory Kits
      • STEP 1: Plan the Installation Site
        • Choose a Location
        • Choose Solar Assembly Cable Entry
        • Plan Wiring Method
        • Plan Distance Between Components
      • STEP 2: Mount Powerwall+
        • Anchor the Powerwall+ Mounting Brackets
        • Mount the Battery Assembly on the Bracket
        • Mount the Solar Assembly
      • STEP 3: Connect the Solar and Battery Assemblies
      • STEP 4: Make Solar DC Connections
        • Make DC Power Connections
        • Install MPPT Paralleling Jumpers (Optional)
        • Install Mid-Circuit Interrupters in PV Array
      • STEP 5: Install Backup Switch
        • Determine Where to Install Backup Switch
        • Install Backup Switch Behind the Utility Meter
          • Remove the Meter
          • Inspect the Meter and Meter Socket
          • Install the Backup Switch
          • Reinstall the Meter
        • Install Backup Switch in a Standalone Meter Panel
          • Inspect the Meter Panel
          • Install Meter Panel and Backup Switch
        • Connect Powerwall+ to the Backup Switch
      • STEP 6: Make AC Power Connections
        • UL 1741 PCS Requirements
          • Panel Limit Feature
      • STEP 7: Install System Shutdown Switch
      • STEP 8: Complete the Installation
        • Plan Internet Connection for Powerwall+
        • Close the Wiring Compartments and Turn the System On
        • Perform Device Setup
          • Backup Switch Off-Grid Test
        • Finish and Demonstrate the Installation
        • Technical Support
        • Maintenance
      • Appendix A: Powerwall+ Mounting Details
        • Powerwall+ Space Requirements
        • Powerwall+ Anchoring Details
        • Mounting Bracket Anchoring Details
        • Concrete Pad Details for Ground-mounting Powerwall+ on Poured Concrete with an Existing Structural Wall
        • Anchoring and Concrete Pad Details for Ground-mounting Powerwall+ on Poured Concrete with Steel Posts
      • Appendix B: Wiring Reference
        • Powerwall+ Wiring
          • Solar Assembly and Battery Assembly Connections
          • Battery Assembly Wiring
          • Solar Assembly Wiring
        • Backup Switch Wiring
      • Appendix C: System Wiring Diagrams
        • Whole Home Backup
      • Appendix D: Inverter Settings
        • Voltage Ride-Through
        • Frequency Ride-Through
        • Accuracy
        • Other Function Parameters
      • Appendix E: Solar Assembly Rapid Shutdown
        • Rapid Shutdown Initiation
        • Self-Test Function
        • Rapid Shutdown Initiator Label
          • RSD Initiator Label Location
      • Appendix F: System Energy Metering
        • Installing a Neurio Remote Energy Meter
          • Wireless Communication to the Powerwall+
          • Meter Voltage Taps
          • Voltage Tap and Current Transformer Connections
          • Meter Placement and CT Wire Lengths
          • Current Transformer Placement
          • Current Transformer Orientation
          • Current Transformer Capacity
          • Installing the Meter
      • Appendix G: Installation Troubleshooting
        • Updating Firmware
        • Configuring Energy Meters
        • Reset the Backup Switch
        • Power Cycle the System
      • Appendix H: Safety Features
        • Arc Fault Detection and Protection
        • Ground Fault Protection
        • Protective Earth Impedance Check
        • System LED Behavior
          • Powerwall+ LED Behavior
          • Backup Switch LEDs
          • Neurio Meter LED Behavior
      • Appendix I: Installing the Cold Weather Kit
      • Appendix J: Multi-Powerwall+ Installations
        • Multi-Powerwall+ Systems
        • Powerwall+ Systems with Powerwall 2 AC
          • Side by Side Installations
          • Stacked Installations
            • In the Powerwall Stack Kit
            • Required Tools
            • Site Requirements
            • Installation Instructions
              • Step 1: Prepare for Installation
              • Step 2: Choose a Wiring Option
              • Step 3: Prepare for Concealed Wiring
              • Step 4: Join the Units
              • Step 5: Wire the Powerwall Units
              • Step 6: Close the Wiring Compartments and Replace the Covers
              • Step 7: Turn On and Configure the System
      • Appendix K: Shutting Down Powerwall+
      • Appendix L: Servicing Powerwall+
        • Performing a Backup Switch Manual Override
        • Backup Switch Manual Override Switch Positions
        • Servicing the Solar Assembly
      • Appendix M: Revision Log
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