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This manual provides the full installation, commissioning, and safety guidance for the GivEnergy Generation 3 String Inverter range, covering the 3.6 kW, 5.0 kW and 6.0 kW models. It summarises the official Installation Manual and includes all essential installation requirements, wiring references, safety instructions, commissioning steps, and shutdown procedures.

Product Overview

The Gen 3 String Inverter converts DC power from solar panels into usable AC power for the home. When paired with GivEnergy battery systems, excess generation can be stored and used later. The inverter accepts up to 17 A per PV string and delivers up to 6.0 kW of output power depending on the model. 

Specifications

Box Contents

• String Inverter main unit
• Mounting bracket
• Fixings pack (5 × M6×70 bolts)
• User documentation

Reference: Box contents on page 2 of the manual.

General Installation Requirements

• Installation must be completed by a GivEnergy Approved Installer.
• Store the inverter between 5°C and 60°C prior to installation.
• Do not stack more than 4 units during storage.
• Verify all components match the order specification before installation.

Safety Instructions

• The system contains high voltage even when disconnected. Do not touch internal parts.
• Installers must comply with IEE Wiring Regulations.
• The heat sink becomes hot during operation — avoid contact.
• Only GivEnergy batteries should be used with GivEnergy inverters.
• Reversed DC polarity will cause damage and void warranty.
• Use a minimum of 16mm² tri-rated cables for DC battery connections.
• The inverter must be mounted vertically with all connections at the bottom.

Mounting and Wall Requirements

The mounting bracket must be fixed to a wall at least 100 mm thick. Drill 5 × 80 mm deep holes and secure the bracket with the provided M6×70 expansion bolts.

Required Tools

• Impact drill
• Flathead and crosshead screwdrivers
• Allen keys
• Wire strippers
• Pliers and crimping tools
• Multimeter
• Spirit level
• Safety goggles

Clearance Requirements

Adequate airflow must be maintained around the inverter. Minimum required clearance:

• 400 mm left and right
• 400 mm top
• 600 mm bottom

See page 6 of the manual for the clearance illustration.

Connections Overview

Connection locations include PV input terminals, AC supply terminals, RS485 ports, LAN, CT, meter, CAN, DRM, and external WiFi/4G USB module.

Communication Connections

The inverter supports multiple communication interfaces using DIP switch selection, including RS485 for meters/EMS, CT input, CAN-based BMS, parallel ports, and digital inputs/outputs. Detailed pin assignments are listed on page 7.

AC Utility Grid Connection

Cable size and overcurrent protection requirements vary by model:

Reference: AC grid connection table on page 7.

Connecting the MID-Approved Meter

A MID-approved meter must be installed to ensure accurate monitoring and battery-charge decisions. The CT clamp must be installed on the incoming live supply with the arrow facing towards the property (direction of import).

Start-Up Procedure

1. Close the AC circuit breaker and verify that grid readings match the MID meter.
2. Turn on the DC switch.
3. The inverter will start automatically when PV voltage exceeds 90 V.
4. Confirm the inverter operating status.

Shutdown Procedure

1. Turn off the PV switch.
2. Turn off the DC switch.
3. Open the AC circuit breaker.
4. Wait until all LEDs are off before performing any work.

Grounding Requirements

• Protective earth must be connected before any other wiring.
• The system must not operate without grounding.

Commissioning

All systems must be commissioned using the GivEnergy online portal. Login with your engineer credentials at: portal.givenergy.cloud. Without commissioning, the system will not function correctly.

Decommissioning

1. Follow the shutdown procedure.
2. Disconnect all cabling.
3. Remove locking screws and lift the inverter off the bracket.
4. Remove the wall bracket.

Storage and Packaging

• Store between -25°C and +60°C.
• Retain original packaging where possible.
• Do not stack more than four units.

Warranty

The Generation 3 String Inverter range carries a 12-year manufacturer warranty.