Quick Installation Guide for Segensolar H3 5-12kW Three Phase Storage Inverter

Quick guide from the manual

This document provides essential installation and configuration steps for the Segensolar H3 5-12kW Three Phase Storage Inverter. It covers physical mounting, electrical wiring for grid, EPS, PV, battery, and meter connections, as well as system start-up and WiFi setup.

Mounting

Ensure the inverter is installed with proper clearance (500mm on all sides). Drill 6 holes using an 8mm drill bit to a depth of at least 50mm. Secure the wall bracket with expansion bolts, mount the inverter, and lock the side screws to ensure it is firmly attached.

Electrical Connections

Grid Connection: Use a 5-core cable with a diameter of 9-16mm. Separate the connector, insert the cable, connect according to polarity, and tighten. Ensure a click sound when connecting to the inverter.

EPS Connection: Follow local wiring regulations. For some regions (e.g., Australia, New Zealand), the N cables of the Grid and EPS sides must be connected together for the EPS function to work.

PV Connection (H3 Only): Use 12 AWG wire. Strip 6mm of insulation. Ensure proper polarity when inserting into the PV connector.

Battery Connection: Connect the power line and communication cable between the BMS and the inverter. Ensure the grounding cable is connected.

Meter Connection: Insert L1/L2/L3/N wires and RS485A/B cables into the meter. Ensure the CT arrow faces the grid. Connect RS485A to pin 4 and RS485B to pin 3 of the inverter's METER/RS485 port.

Inverter Start-Up

1. Ensure the inverter is fixed securely.
2. Verify that GRID, EPS, PV, and Battery wirings are completed.
3. Ensure BMS buttons and battery switch are ON.
4. Turn on the PV/DC switch, AC breaker, EPS breaker, and battery breaker.
5. If the main page shows "switch off", long-press the '√' button to go to the START/STOP page and set it to start.
6. Check the country code and set the time via the inverter button or the App.

WiFi Stick Installation

Plug the Smart WiFi stick into the WiFi/GPRS port on the underside of the inverter. Use the FoxCloud App to configure the network. Scan the QR code on the stick, connect your mobile device to the Smart WiFi (SSID: W-xxxxx, Password: mtmt2020), and follow the in-app instructions to connect to your home router.

Firmware Update

Prepare a PC and a USB 2.0 disk (FAT16 or FAT32 format, less than 32GB). Extract update files into the USB disk. Unscrew the waterproof lid, insert the USB disk, and use the LCD menu to select the upgrade file and confirm.