Introduction
Thank you for choosing the HUANUO L-Shaped Standing Desk. This manual provides essential information for the safe and efficient assembly, operation, and maintenance of your new electric height-adjustable desk. Please read all instructions carefully before use and retain this manual for future reference.
Safety Information
Important: Ensure the desk is securely assembled according to these instructions and does not exceed the maximum weight limit of 220 lbs (100 kg) to prevent stability issues or damage. Failure to follow safety guidelines may result in injury or product damage.
- Keep children and pets away from the desk during operation.
- Ensure no obstacles are in the path of the desk's movement (up or down).
- Do not sit or stand on the desk.
- Do not open any components of the control box or motors.
- Only use the provided power adapter.
Setup and Assembly
Assembly is required for this product. We recommend 2 people for assembly to ensure safety and ease of installation. All necessary hardware and a detailed instruction manual are included in the packaging. Please refer to the enclosed manual for step-by-step visual guides.
The L-shaped desktop offers flexible configuration. You can choose to install the wider desktop section on either the left or right side to best fit your room layout and preferences.

Key Assembly Steps:
- Assemble the leg sections by attaching the short and long crossbars to the desk legs using the provided screws.
- Attach the side plates to the desk legs.
- Secure the frame to the desktop panels. Ensure all screws are tightened for stability.
- Attach the cable management tray underneath the desktop.
- Install the storage hooks and the control panel to the desktop.
- Connect all cables from the motors and control panel to the main control box.
- Connect the power adapter.

Operating Instructions
Your HUANUO L-Shaped Standing Desk features an intuitive control panel for electric height adjustment and memory presets.

Height Adjustment:
- Use the Up (^) and Down (v) arrow buttons on the control panel to manually adjust the desk height. The desk operates quietly at approximately 55 dB.
- The desk can be adjusted from a minimum height of 28.3 inches (71.9 cm) to a maximum height of 47.2 inches (119.9 cm).
Memory Presets:
- The desk features 3 programmable height memory presets.
- To save a preferred height: Adjust the desk to your desired height using the arrow buttons, then press the 'S' button followed by one of the number buttons ('1', '2', or '3'). The height is now saved to that preset.
- To recall a saved height: Simply press the corresponding number button ('1', '2', or '3'), and the desk will automatically move to the saved position.

Cable Management:
- Utilize the integrated cable management tray located underneath the desktop to store power strips and organize cables, keeping your workspace neat and clutter-free.
- Two storage hooks are provided on each side of the desk, perfect for hanging headphones, bags, or other accessories.

Maintenance
To ensure the longevity and optimal performance of your HUANUO L-Shaped Standing Desk, follow these simple maintenance guidelines:
- Cleaning: Wipe the desktop and frame with a soft, damp cloth. Avoid harsh chemicals or abrasive cleaners that could damage the finish.
- Fasteners: Periodically check all screws and bolts to ensure they are tight. Re-tighten if necessary to maintain stability.
- Cable Inspection: Regularly inspect power cords and connections for any signs of wear or damage. Replace immediately if any damage is found.
- Weight Limit: Always adhere to the maximum weight capacity of 220 lbs (100 kg). Overloading can damage the motors and frame.
Troubleshooting
If you encounter any issues with your desk, please refer to the following common troubleshooting tips:
- Desk Not Moving: Check all power connections. Ensure the power adapter is securely plugged into both the wall outlet and the control box.
- Uneven Movement: Ensure the desk is on a level surface. Check that all leg components are securely fastened.
- Error Codes: If the control panel displays an error code, consult the detailed troubleshooting section in the enclosed instruction manual for specific solutions.
- Anti-Collision Feature: The desk is equipped with anti-collision technology. If the desk encounters an obstacle during movement, it will stop and slightly reverse direction. Remove any obstacles and try again.
If problems persist, please contact HUANUO customer support.
Specifications
| Feature | Detail |
|---|---|
| Brand | HUANUO |
| Model Number | HNESD109B |
| Shape | L-Shape |
| Product Dimensions (D x W x H) | 63"D x 40"W x 28.34"H (160 cm x 101.6 cm x 72 cm) |
| Minimum Height | 28.34 inches (72 cm) |
| Maximum Height | 47.2 inches (119.9 cm) |
| Item Weight | 83 Pounds (37.6 kg) |
| Maximum Weight Recommendation | 220 Pounds (100 kg) |
| Top Material Type | Engineered Wood |
| Base Material | Carbon Steel |
| Color | Black |
| Lifting Mechanism | Electric Dual Motor |
| Included Components | Cable Management Tray, Electric Standing Desk Frame, Headphone Hook |
| Required Assembly | Yes |
| Recommended Number of People for Assembly | 2 |

Warranty
This HUANUO L-Shaped Standing Desk comes with a Limited Warranty. For detailed information regarding warranty coverage, terms, and conditions, please refer to the warranty card included in your product packaging or visit the official HUANUO website.
Support
For any questions, technical assistance, or support needs, please contact HUANUO customer service:
- Support E-mail: support@huanuo.com
Please have your model number (HNESD109B) and purchase information ready when contacting support.
Product Video Overview
Watch this video for a comprehensive overview of the HUANUO L-Shaped Standing Desk, including its features and functionality.





