Myenergi libbi Home Battery Installation Manual

1. Introduction

This manual provides essential information for the safe and effective installation of the Myenergi libbi Home Battery system. It is crucial to read and understand all instructions before proceeding with the installation.

1.1 Copyright: Copyright of these instructions remains with the manufacturer, Myenergi Ltd. Text and images correspond to the technical level at the time of printing. Myenergi reserves the right to make changes without prior notice.

1.2 Liability Limitation: Myenergi does not accept liability for product damage or property loss caused by unauthorized modifications, improper installation, failure to comply with standards and regulations, misuse, or force majeure events.

1.3 Safety: Failure to operate the libbi in accordance with these instructions may cause injury, death, or damage to the unit. Always adhere to the warning signs and safety precautions outlined in this manual. A DANGER warning indicates a hazardous situation that could result in death or serious injury. A WARNING indicates a potential hazard. A notice or tip provides guidance.

1.4 Regulatory Information: The libbi product complies with applicable CE and UKCA marking directives, including Radio Equipment (RED), Electromagnetic Compatibility (EMC), and Low Voltage (LVD). Declarations of Conformity are available on the Myenergi website.

2. Product Description

The libbi is an energy storage system designed to store surplus energy generated by PV arrays or other renewable sources for home use. It can also be used in homes without generation to maximize benefits from Time of Use tariffs.

libbi can operate as a standalone product or in conjunction with other Myenergi products like zappi, eddi, and harvi for an 'eco-smart' home.

2.1 Product Introduction: libbi offers modular system sizes from 5.1kWh to 20.4kWh and comes with either a 3.68kW or 5kW inverter option.

2.2 Model Options:

• Model No. LIBBI-305Sh, LIBBI-310Sh, LIBBI-315Sh, LIBBI-320Sh
• Model No. LIBBI-505S, LIBBI-510Sh, LIBBI-515Sh, LIBBI-520Sh

3. System Topologies: libbi utilizes a hybrid inverter and can be configured for AC-Coupled, DC-Coupled, or Hybrid Coupled Battery Systems.

3.1 Overview Diagrams: Diagrams illustrate the libbi system in various configurations, including AC-Coupled, DC-Coupled, and Hybrid Coupled setups.

4. Box Contents

The package contents vary depending on the specific libbi system model ordered. Refer to the table for a breakdown of part codes and their inclusion in different system configurations.

Breakdown of individual Part Codes: Detailed lists of components included in the Inverter, Controller, Cable Packs, Battery Module, Top Panel, and Floor Stand Support are provided.

5. System Appearance

5.1 Battery and Inverter: Identifies the key components of the libbi system, including the Hybrid Inverter, On Board Display, Cable Box, Battery Capacity Indicator, and Battery Cell.

Battery Light Indicators:

• Capacity Indicator: Green lights indicate battery charge level (25% per light).
• Fault Indicator: Red light indicates a system fault.
• Running Light: Solid green indicates the system is on; flashing green indicates charging/discharging.
• Reset Button: Used for resetting the battery.

6. Installation

6.1 Site and Environmental Parameters:

Battery and Inverter: The libbi battery and inverter are IP65 rated and can be installed outdoors. Indoor installations require a clean, dry, and adequately ventilated location, free from obstructions. Specific locations to avoid include habitable rooms, ceiling/wall cavities, roofs not considered suitable, access/exit areas, and areas with high humidity or condensation.

Protect Against Spread of Fire: Ensure non-combustible materials are used for mounting surfaces and within a specified radius around the system, especially in habitable spaces or corridors.

Controller: The libbi controller must be installed indoors and requires adequate ventilation. Ensure sufficient clearance for airflow.

6.2 Floor Stand Support: libbi should be installed on a level surface. A floor stand support is available for ensuring a level installation.

6.3 Battery: Detailed instructions are provided for mounting the battery modules, including options for 5kWh, 10kWh, 15kWh, and 20kWh systems. Proper handling by two persons is emphasized.

6.4 Inverter: Instructions for mounting the inverter, including bracket installation and securing the unit to the battery, are provided. Cable box cover removal is also detailed.

6.5 Controller: Guidance on mounting the controller indoors, including marking and drilling for fixings, is provided.

7. Electrical Connections

WARNING: Electrical connection work must only be carried out by a competent person due to the risk of electric shock.

7.1 Battery and Inverter: Instructions cover the connection of the 'On Grid' and 'Backup' cables, including proper terminal identification (L, N, Earth) and the use of provided plugs. Details on cable specifications and the importance of not bypassing the plug are included.

Backup Connections: Specific requirements for backup connections, including the use of a Type A RCD and a dedicated consumer unit, are outlined.

Connecting PV: Instructions for making MC4 plugs for PV connections are provided, emphasizing their one-time use. The need for external DC isolators for PV strings is also mentioned.

7.2 Controller:

7.2.1 Strip length: Recommended strip length for conductors is provided.

7.2.2 Supply: Details for single-phase and three-phase supply connections are given, including CT sensor installation and configuration.

7.2.3 Gland Requirements: Guidance on using glands for cable anchoring is provided.

7.2.4 Controller to Inverter Communication (RS485): Instructions for connecting the RS485 communication cable between the controller and inverter are provided.

7.2.5 Ethernet Connection: Information on connecting the controller via Ethernet or WiFi is included. The system defaults to Ethernet if connected.

7.2.6 CT Sensor Installation: Detailed guidance on installing Current Transformers (CTs) for monitoring grid connection, generation, and loads is provided. Rules for Grid CT and other CTs, as well as their capabilities, are explained.

8. Initial Configuration

8.1 Power Up: Step-by-step instructions for powering up the system, including the order of switching on PV, AC isolator, backup switch, and battery switches, are provided.

8.1.1 Battery and Inverter: Procedures for turning on the system components are detailed.

8.1.2 Controller: Instructions for switching on the libbi controller are provided.

8.2 Controller Set-up: Information on the 'Setup Wizard' screens for configuring the libbi system, including country of installation and time zone, is presented.

8.3 CT Configuration: Guidance on configuring CT inputs within the controller menu for different installation types (3-Phase, 3 libbis on 3-phase) is provided.

8.4 Pairing Devices:

8.4.1 Overview: Information on linking up to 6 Myenergi devices wirelessly for enhanced energy management.

8.4.2 Master & Slave Devices: Explanation of master/slave roles and how to set them.

8.4.3 Channels: Guidance on ensuring all devices use the same RF channel for optimal communication.

8.4.4 Pairing libbi: Steps for pairing libbi with existing Myenergi systems.

8.5 Device Settings: How to access and change settings for linked devices.

8.5.1 Device Priorities: Setting the priority for load-controlling devices.

8.5.2 Removing Devices: Procedures for removing paired devices or resetting all settings.

8.6 Internet Connectivity: Instructions for connecting the libbi controller to the internet via hardwired Ethernet or WiFi.

8.7 Export Limitation: How to set export limits to comply with DNO regulations.

8.8 Import Limit: The importance of setting an import limit for load balancing and main fuse protection is explained.

9. Product Registration (Installer Portal)

Installers are required to register each libbi installation via the Myenergi installer portal to commence the product warranty. This involves logging into the portal, entering product details using barcodes, and submitting the information.

10. Product Registration (Customer app and myaccount)

Ensuring the customer registers their new device via the Myenergi app and myaccount is crucial. Instructions are provided for first-time users and for adding additional devices to an existing account.

11. Commissioning

Essential checks for a successful installation include verifying battery module communication, ensuring correct system settings, checking grid CT readings, confirming internet connectivity, setting safety limits, testing backup functionality, and ensuring all components are registered. The customer should also be satisfied with the app settings and understand its operation.

12. Routine Maintenance & Cleaning

Observational Inspection (Every 6 months): A visual inspection for damage and abnormalities, checking operating environment parameters.

Equipment Cleaning: Keeping the area clean, ensuring access routes are clear, and maintaining warning signs.

Full Maintenance Inspection (Every 6-12 months): A more thorough inspection by a qualified person, checking cable connections, terminals, and earthing.

12.1 Emergency Power Down Procedure: Step-by-step instructions for safely powering down the libbi system in case of an emergency or fault.

12.2 Battery Reboot: Procedure for rebooting the battery system.

13. Warranty

Full details of the Myenergi libbi product warranty are available on the Myenergi website or by scanning the provided QR code.

14. Technical Support

For any issues encountered during or after installation, Myenergi provides technical support. A QR code links to their Help Centre.

14.1 Status, Warning and Fault Codes: A comprehensive list of status, warning, and fault codes is provided, along with troubleshooting steps for each.

Appendix A - Specifications

Detailed specifications for the libbi Battery and Controller are provided, covering electrical, physical, BMS, compliance, and operational parameters.

Appendix B - libbi EESS Installation Schematics

Typical wiring arrangements for the libbi EESS are shown for TT Grid Supply and TN-S or TN-C-S Grid Supply configurations.

Appendix C - libbi N-E Bond Relay

Diagrams illustrating the N-E Circuit for Off-Grid and On-Grid Conditions are provided.

Appendix D - Wiring Diagrams

Wiring diagrams for 1 libbi installed on a 3-phase supply, 3 libbis installed on a 3-phase supply (each monitoring 1 phase), and 3 libbis installed on a 3-phase supply (all phases monitored by one libbi) are included.

Appendix E - Start Up Wizard Menu Map

A flowchart detailing the libbi start-up wizard menu is provided, guiding users through the initial setup process.