Installation Guide

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Table Of Contents

Disclaimers
- Important Notice
- FCC Compliance
Support and Contact Information
Revision History
Contents
HANDLING AND SAFETY INSTRUCTIONS
- Safety Symbols Information
IMPORTANT SAFETY INSTRUCTIONS
Chapter 1: Introducing the SolarEdge Power Harvesting System
- Power Optimizer
- Inverter with Safety Switch
- Monitoring Platform
- Supported AC Grids
- Installation Procedure
- Installation Equipment List
- Inverter Transport and Storage
Chapter 2: Installing the Power Optimizers
- Safety
- Package Contents
- Installation Guidelines
- Step 1: Mounting and Grounding the Power Optimizers
- Step 2: Connecting a PV Module to a Power Optimizer
- Step 3: Connecting Power Optimizers in Strings
- Step 4: Verifying Proper Power Optimizer Connection
Chapter 3: Installing the Inverter
- Inverter Package Contents
- Identifying the Inverter
- Inverter Interfaces
- Opening Conduit Drill Guides
- Mounting the Inverter
Chapter 4: Connecting the AC and the Strings to the Safety Switch
- Grid Connection Guidelines
- Setting the Inverter to Support 208V 3-wire Grid
- Connecting the AC Grid to the Safety Switch
- Connecting the Strings to the Safety Switch
Chapter 5: Commissioning the Installation
- Step 1: Activating the System
- Step 2: Pairing Power Optimizers to the Inverter
- Step 3: Verifying Proper Activation
- Step 4: Reporting and Monitoring Installation Data
Chapter 6: User Interface
- LCD User Buttons
- Inverter Configuration – Setup Mode
- Status Screens - Operational Mode
Chapter 7: Setting Up Communication
- Communication Options
- Communication Connectors
- Removing the Inverter Cover
- Creating an Ethernet (LAN) Connection
- Creating an RS485 Bus Connection
- Verifying the Connection
Appendix A: Errors and Troubleshooting
- Troubleshooting Communication
- Power Optimizer Troubleshooting
Appendix B: Mechanical Specifications
Appendix C: External Fan Maintenance and Replacement
- Fan Maintenance
- External Fan Replacement
Appendix D: Replacing and Adding System Components
- Replacing an Inverter
- Replacing the Safety Switch
- Adding, Removing, or Replacing Power Optimizers
Appendix E: Determining the Circuit Breaker Size
- Revision History
- Introduction
- Using Transformers in Commercial Three Phase Inverter Installations
- Determining the Size of an Inverter Circuit Breaker
Technical Specifications - Single Phase Inverters (North America)
- Default Trip Limits and Times According to IEEE1547
- Safety Switch
Technical Specifications - Three Phase Inverters (North America)
- Default Trip Limits and Times According to IEEE1547
- Safety Switch

Figure 18: Inside the Safety Switch for three phase inverters

(14.4kW & 33.3kW)

Grid Connection Guidelines

Equipment grounding tightening torques: 4-6 AWG: 45 lb-in, 8 AWG: 40 lb-in,

10-14 AWG: 35 lb-in.

The conduits, hubs and fittings must be suited for field wiring systems.

The hubs and other fittings must comply with UL514B.

Use only copper conductors rated for a minimum of 90°C.

For the SE10KUS, SE20KUS, SE33.3KUS three phase inverters where opposite

polarity DC conductors are routed in the same conduit, 1000V rated cables must

be used.

Use the conduit and wiring appropriate for the installation location per the NEC.

Outdoor installations must use components that are rated NEMA 3R or higher.

NOTE

For more wiring information refer to the

SolarEdge

Recommended AC Wiring Application Note

, available on the

SolarEdge website at

https://www.solaredge.com/sites/default/files/application-note-

recommended-wiring.pdf

Chapter 4: Connecting the AC and the Strings to the Safety Switch 43

Three Phase System Installation Guide MAN-01-00002-4.3