Comprehensive Guide to Installing and Using harvi with zappi, eddi, and libbi

The harvi is an innovative device designed to simplify the installation of the zappi, eddi, and libbi products by eliminating the need for wired current transformers (CTs). Instead, the CT that monitors grid, generation, battery, or other relevant data can be connected wirelessly to the harvi. The harvi device does not require an external power source, as it harvests energy from the cable it monitors, transmitting the data to the zappi, eddi, or libbi units.

This eliminates the need for batteries or complex wiring, making the installation process quicker and more flexible.

Important Notes

Before proceeding with installation, here are key considerations to keep in mind when using the harvi:

  • Wall-Mountable:
    The harvi can be conveniently mounted on a wall, making it ideal for neat and organised installations.

  • Multiple CT Connections:
    Up to 3 CTs can be connected to a single harvi device, enabling monitoring of multiple circuits or energy sources.

  • Weather Protection:
    The harvi cannot be installed outside without being housed in an IP65-rated or higher enclosure to protect it from weather elements.

  • No External Power Required:
    The harvi does not require batteries or an external power supply. It uses the energy harvested from the cable it monitors to function, making it an eco-friendly and convenient solution.

Installation Instructions

  1. Clipping the CT to the Cable
    The CT should be clipped around the cable you wish to monitor. Ensure that the arrow on the bottom of the CT is pointing in the direction of the normal current flow (usually towards the consumer unit).
  2. Connecting the CT to the harvi
    Connect 1 to 3 CTs to the CT input(s) of the harvi. The red wire should be connected to the (+) terminal and the black wire to the (-) terminal.
  3. Wait for Initialization
    After the connections are made, the harvi’s Status LED will flash green after a few seconds, indicating that it is ready for use.

Pairing with zappi, eddi, or libbi

  1. Press the Pair Button
    • Briefly press the pair button on the harvi. The LED will flash blue a number of times to indicate the channel number:
      • 1 flash = Channel 1
      • 2 flashes = Channel 2
      • (and so on)
  2. Enter Pairing Mode
    • The LED will then flash red, indicating the harvi is in pairing mode.
  3. Pair with zappi, eddi, or libbi
    • On the zappi or eddi device, go to the “Installer Settings > Linked Devices” menu and select “Pairing Mode” to enable it.
    • The harvi should appear on the screen within a few seconds. Verify that the serial number displayed on the screen matches the number on the front of the harvi device.
    • Press the tick or plus button on the device to confirm pairing.

Changing the Channel (Optional)

By default, the harvi is set to Channel 1. However, in certain situations, there may be interference on this channel. If needed, you can change the channel by following these steps:

  1. Hold the Pair Button
    Press and hold the pair button on the harvi until the LED starts flashing blue rapidly. This indicates the channel selection process is active.
  2. Select the Desired Channel
    The LED will flash a number of times corresponding to the channel (from 1 to 8). Release the button when the desired channel is displayed.
  3. Ensure Synchronisation
    Make sure the zappi or eddi unit is set to the same channel number to ensure proper communication.

    Note: Early versions of the zappi and eddi devices support only 4 selectable channels.

Configuration of CTs on the Main Device

After pairing the harvi with your zappi, eddi, or libbi, you need to configure the master device to use the harvi as its data source. The configuration process involves adjusting settings on the zappi, libbi or eddi unit.

  1. Go to the Installer Settings
    • On the main device, navigate to the “Installer Settings” menu.
  2. Configure CT Inputs
    • Select “CT Inputs” or “CT Config” and disable the relevant CT input(s) for the device. This ensures that the unit will use the harvi’s wireless CT data instead of any wired CT.
  3. Linked Devices Menu
    • Next, go to the “Linked Devices/Devices” menu (also found under “Installer Settings”).
    • Highlight the harvi device and press plus or tick to select it.
  4. Configure the CTs
    • Finally, configure the CT settings according to your installation. Ensure the configuration matches the physical setup to properly monitor the desired circuits or energy sources.

Conclusion

The harvi provides a convenient and wireless alternative to traditional wired current transformers for monitoring grid, generation, and battery data. By following the outlined installation, pairing, and configuration steps, you can ensure a smooth and effective setup with your zappi, eddi, or libbi device.

If you encounter any difficulties or need assistance during installation, don’t hesitate to contact myenergi Support for further guidance.

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