Enapter EL 4.1 Electrolyser User Guide

Enapter EL 4.1 Electrolyser

Product Information

The Electrolyser EL 4.1 is a device manufactured by Enapter for indoor use. It is designed to produce hydrogen through electrolysis. The device comes in different versions, including AC/DC or DC/DC versions, as well as air-cooled or liquid-cooled versions (LC). The Electrolyser operates in Maintenance mode upon initial setup, indicated by a steady yellow LED. The device requires a proper water inlet source for operation and can be connected to an optional external Enapter Water Tank for stable water supply. For cooling, the device has Cooling Water ports that can be used with water or a water glycol mixture. Regular maintenance of H2 VENT and O2 VENT lines is crucial to ensure safe operation.

Product Usage Instructions

1. Download the Owner’s Manual from handbook.enapter.com. For support, contact support@enapter.com.
2. Follow the Installation Instructions provided in the Owner’s Manual. Make sure to connect the necessary pipes and wires according to the manual. When turning on the device, ensure the power switch is activated.
3. Before proceeding, ensure a proper water inlet source is connected to the O H2 IN port. Flush all water pipes with demineralised water to remove any obstructions.
4. If required, connect an optional external Enapter Water Tank for stable water supply. The tank can be filled manually with prepared demineralised water or connected directly to a water source.
5. For EL4.0 LC version, check the Cooling Water ports and follow the manual instructions to ensure optimal temperature regulation based on flow rate and ambient temperature. The flow rate should be between 1-2 L/min, and the input pressure must not exceed 4 bar.
6. Regularly check and maintain the H2 VENT and O2 VENT lines to ensure they are free from blockages and damage. Do not connect the H2 VENT line with the O2 VENT line as it is extremely dangerous.
7. If desired, connect the Electrolyser to Enapter Cloud for remote monitoring and control. Use the Enapter mobile app or Web GUI instructions to perform the first electrolyte refilling. Skip this step if there is no internet connection.

Download the Owner’s Manual

• All information about Enapter devices can be found at handbook.enapter.com. Contact support at support@enapter.com.

Enapter makes different versions of electrolyser based on your needs. Electrolysers come in AC/DC or DC/DC versions as well as air- cooled or liquid-cooled versions (LC).

Follow Installation Instructions in the Owner’s Manual

• Device out-of-the-box comes in Maintenance mode. Yellow LED should be steady. Do not leave it turned on and unattended for a long time.
• You must follow owner’s manual for all steps, including pipe and wire connection, operation, transportation, storage and disposal.
• Insert the two supplied jumpers into the Dry Con. port in the 3rd and 4th positions on the front panel of the EL. If you want/need to implement a safety chain, please refer to Dry Contact Connection Guide in the owner’s manual.
• Screw supplied antenna to the Ant. port. Plug the power cable into the Power port
  AC – protective earth on the left, live on the right.
  DC – positive on the top. and switch the power on.

Water Inlet Requirements

H2O IN port is used for automatic refilling from connected demineralised water source during normal operation, first refilling and maintenance. During hydrogen production water consumption rate is around 400 mL/hr.

• Proper inlet water source must be connected before proceeding to the next steps.
• Flush all water pipes with demineralised water before connecting your device to ensure nothing is stuck in the lines.

Connect electrolyser to water supply only through water purification system according to the Owner’s Manual. Water conductivity must be < 20 uS/cm (at 25°C) and pressure between of 1-4 bar.

Optional External Enapter Water Tank
Use Enapter Water Tank to solve the problem of unstable water supply. It can be filled manually with prepared demineralised water as well as directly connected to water source. Enapter Water tank deliveries pressure up to 2.75 bar. Water conductivity must be < 20 uS/cm (at 25°C).

EL4.0 LC version Cooling Loop Requirement
Cooling Water ports (normally closed) are used for cooling the system using water or a water glycol mixture. Check the manual to guarantee the optimal temperature as a function of your flow rate and ambient temperature. The required flow rate is 1-2 L/min and input pressure can’t exceed 4 bar. Make sure you are not reversing the IN and the OUT.

Check H2 Vent and 02 Vent Lines

It is the installer’s responsibility to regularly check and maintain H2 VENT and 02 VENT lines, as well as keeping the lines free of ice and any obstructions.

• DO NOT connect H2 VENT line with 02 VENT line. Mixing these outputs is extremely dangerous.
• Always check H2 vent and 02 vent lines for blockage and damage.

Make sure there is no obstruction into the H2 VENT line. This can cause irreparable damage to your hydrogen system No blockage should be present on 02 VENT on the user side of the interface.

Connect the Electrolyser to Enapter Cloud

To download the Enapter mobile app, scan the QR-code or visit app.enapter.com from your Android or Apple mobile phone.

•  Skip this step for isolated setups with no internet connection.
• Power on the device.
• Make sure antenna is turned on (blue led steady on the front panel of electrolyser).
• Open the Enapter App and follow the steps to create your site in the Enapter Cloud.
• Press the Add device button.
• Scan OR-code located on the front side of the device and follow the Enapter app instructions.
• If you can’t scan the QR code, enter the device ID and PIN manually. You can find them on the back of the device.
• Device connected.
  Monitor device activity in Enapter App or Enapter Cloud.

Access the Electrolyser’s Web GUI
For Isolated setups with no internet connection use Enapter Web GUI (Graphical User Interface) to monitor and control the device locally through a web browser.
Instructions on how to access Electrolyser’s Web Interface are available at handbook.enapter.com

• Option A :For sites with a local WiFi network. This connection type allows users to access web interface of multiple electrolysers’ and also use it via mobile web browser.
• Option B :Connection via ETH (Ethernet) port on the front panel of the device allows users to access the web interface of a single electrolyzer.
• Alternating current voltage of 220-240V is potentially lethal!
• Direct current voltage of 48-60V can be a hazard!

The First Electrolyte Refilling

Follow Enapter App or Web GUI instructions to refill the electrolyser for the first time.

• Water inlet must be connected during electrolyte refiling and draining routines for electrolyser 4.0.

• Make sure electrolyser is in maintenance mode and drained.

• Prepare electrolyte bag with 2l of the 1,54% KOH solution and supplied remiling pipe. Do not dilute the electrolyte!

• Connect the refilling pipe to the bag usine the special connector.

• Insert the opposite end of the pipe to the Fill/Drain Port. Click!

• To start refilling carefully raise the electrolyte bag above the device. Refilling will start automatically.

• Pour out all of the solution from the electrolyte bag.

• Disconnect refilling pipe from the Fill/Drain port.
  If you forget to disconnect the pipe, electrolyser can be overfilled during the next steps or Oh concentration might be wrong. It that happens the device will require service checkup.

• Press Exit Maintenance Mode button.
  Electrolyser will be filled with required amount or water automancaliv

• Electrolvser Is Ready for Hydrogen Production

Electrolyser is Ready for Use!
During normal operation the LEDs indicate the status of the machine. Monitor device activity in Enapter App, Enapter Cloud or WEB GUI.

Optional Connect any energy devices to Enapter Cloud
To integrate solar inverters, power meters, fuel cells, irradiance sensors, etc to Enapter Cloud you will need a suitable Universal Communication Module (UCM) and a Blueprint. Visit marketplace.enapter.com to find out which device integration Blueprints are already available. To learn how to develop your own Blueprints visit developers.enapter.com.

References

• app.enapter.com
• Enapter Developer Toolkit | Enapter Developer Toolkit
• Enapter Handbook
• Enapter Blueprint Marketplace

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