Installation Guide for Fox Ess 0.7-3.3kW Single Phase Inverter

Quick guide from the manual

This document provides essential instructions for the installation and setup of the Fox Ess 0.7-3.3kW single-phase inverter. It covers the physical mounting, electrical wiring (AC and DC), and the initial startup procedure. Ensure all local electrical codes and safety regulations are followed during installation.

Packing List

Before starting, verify that the following components are included in the package:

• Inverter
• Wall bracket
• DC connectors (F/M)
• AC connector and unlock tool
• Expansion tubes and screws
• DC pin contacts
• Earth terminal
• Communication connector and unlock tool
• Optional items: CT, WiFi/LAN/GPRS module, Meter

Inverter Installation

The inverter must be installed with sufficient clearance to ensure proper ventilation and maintenance access. Maintain a minimum distance of 30cm on all sides (left, right, top, bottom, and front).

Mounting Steps:

1. Choose a suitable location on the wall.
2. Place the bracket against the wall and mark the positions for the two holes.
3. Drill holes with an electric drill (ensure they are at least 50mm deep).
4. Insert expansion tubes and tighten them.
5. Secure the bracket to the wall using the expansion screws.
6. Hang the inverter over the bracket, ensuring the mounting grooves on the back are properly fixed with the bracket bars.

Wiring Steps

AC Wiring:

Ensure the correct cable size and micro-breaker are used based on the model:

• 0.7kW - 1.5kW models: Use 2.5mm² cable and a 16A micro-breaker.
• 2.0kW - 3.3kW models: Use 4mm² cable and a 25A micro-breaker.

AC Connector Assembly:

1. Trim wires: 52.5mm for L/N/PE, with 12mm of insulation removed from ends.
2. Separate the AC plug into three parts.
3. Slide the cable nut and back shell onto the cable.
4. Insert wires into the connector, push the threaded sleeve into the socket, and tighten the cap until it clicks.

DC Wiring:

1. Turn off the DC switch.
2. Use 12 AWG wire for PV module connection.
3. Trim 6mm of insulation from the wire end.
4. Assemble the DC connector by inserting the striped cable into the pin contact, ensuring all strands are captured.
5. Crimp the pin contact using crimping pliers.
6. Insert the pin contact through the cable nut into the plug until a click is heard.

Grounding

Connect the grounding wire to the inverter using the ground screw provided on the unit.

Startup Procedure

1. Check that all connections are secure and correct.
2. Turn on the external DC and AC breakers.
3. Turn the DC switch to the ON position.
4. The inverter will start automatically once the PV panels generate sufficient energy. The LED will turn green, and the LCD screen will display the main interface.

Note: During the first startup, verify that the country code is set correctly to local settings. You can set the time on the inverter using the button or the app.