Hörmann Door Closer HDC35-1 Instruction Manual

1. Introduction

This manual provides detailed instructions for the installation, operation, and maintenance of the Hörmann Door Closer HDC35-1. This high-quality door closer is designed for reliable and controlled door closing in various environments, including commercial, public, and private settings. It is engineered for mounting on the opening side (band side) of the door and complies with EN standard 1154.

2. Safety Instructions

Please read all instructions carefully before installation and operation to ensure safe and correct use of the door closer. Failure to follow these instructions may result in injury or damage to the product or property.

• Professional installation is recommended to ensure proper function and safety.
• Always use appropriate tools for installation.
• Keep hands and fingers clear of moving parts during door operation and adjustment.
• Ensure all screws and fasteners are securely tightened after installation and adjustments.
• Do not modify the door closer or its components. Use only original Hörmann parts.

3. Package Contents

Verify that all components are present in the package before beginning installation:

• Hörmann Door Closer HDC35-1 unit
• Slide rail
• Lever
• Mounting plate
• Fasteners (screws, etc. - assumed, not explicitly listed but necessary)

4. Setup and Installation

The Hörmann HDC35-1 door closer is designed for top mounting on the opening side (band side) of the door. Follow these general steps for installation. Refer to the detailed installation template provided with your product for precise measurements and drilling instructions.

Figure 1: Hörmann HDC35-1 Door Closer unit, slide rail, and lever. The main body of the closer is silver, with the arm and slide rail extending from it.

1. Prepare the Door and Frame: Ensure the door and frame surfaces are clean, flat, and structurally sound to support the door closer.
2. Position the Mounting Plate: Using the provided template, mark the drilling points for the mounting plate on the door frame (for standard installation) or door (for parallel arm installation, if applicable). The HDC35-1 is specified for mounting on the opening/band side.
3. Attach the Mounting Plate: Securely fasten the mounting plate to the marked position using appropriate screws.
4. Mount the Door Closer Body: Attach the main body of the HDC35-1 door closer to the mounting plate. Ensure it is oriented correctly according to the installation diagram.
5. Install the Lever Arm: Connect the lever arm to the spindle of the door closer body.
6. Install the Slide Rail: Attach the slide rail to the door frame and connect it to the lever arm. Ensure the slide block moves smoothly within the rail.
7. Initial Adjustment: Perform initial adjustments for closing speed and latching speed as described in the "Operating Instructions" section.

This door closer meets the requirements of EN standard 1154, ensuring its quality and performance for various applications.

5. Operating Instructions

The Hörmann HDC35-1 features an adjustable closing range from EN 3 to EN 5, allowing it to be adapted to different door sizes and weights. Proper adjustment ensures controlled closing speed and effective latching.

5.1. Adjusting Closing Speed

The closing speed (the speed at which the door closes from its fully open position until approximately 15 degrees from closed) can be adjusted using the designated valve screw on the door closer body. Turning the screw clockwise typically decreases the speed (slower closing), while turning it counter-clockwise increases the speed (faster closing).

5.2. Adjusting Latching Speed

The latching speed (the speed at which the door closes for the final 10-15 degrees, ensuring the latch engages) can be adjusted using a separate valve screw. This adjustment is crucial for ensuring the door closes securely without slamming. Adjust similarly to the closing speed, making small increments and testing the door's action.

Note: Make small adjustments and test the door's closing action after each adjustment. Over-tightening adjustment screws can damage the unit.

6. Maintenance

Regular maintenance ensures the longevity and optimal performance of your Hörmann HDC35-1 door closer.

• Cleaning: Periodically wipe the door closer body and slide rail with a soft, damp cloth to remove dust and dirt. Avoid abrasive cleaners.
• Check Fasteners: Annually inspect all mounting screws and fasteners to ensure they are tight. Re-tighten if necessary.
• Inspect for Wear: Check the slide rail and lever arm for any signs of wear, damage, or obstruction. Ensure the slide block moves freely.
• Functionality Test: Periodically test the door closer's operation to ensure the closing and latching speeds are still appropriate and consistent. Readjust if needed.

7. Troubleshooting

If you encounter issues with your Hörmann HDC35-1 door closer, refer to the following common problems and solutions:

• Door not closing completely:
  • Check for obstructions in the door's path.
  • Increase the latching speed slightly (refer to Section 5.2).
  • Ensure the door closer is correctly installed and aligned.
• Door closing too fast or too slow:
  • Adjust the closing speed and/or latching speed using the respective valve screws (refer to Section 5.1 and 5.2).
• Door slamming:
  • Decrease the latching speed slightly (refer to Section 5.2).
• Unusual noises during operation:
  • Inspect the slide rail and lever arm for any loose parts or foreign objects.
  • Ensure all mounting screws are tight.
  • If noises persist, contact customer support.

If problems persist after attempting these solutions, contact Hörmann customer support for further assistance.

8. Specifications

9. Warranty and Support

Hörmann products are manufactured to high-quality standards. For information regarding warranty coverage, technical support, or replacement parts, please contact your authorized Hörmann dealer or visit the official Hörmann website. Please have your product model number (HDC35-1) and purchase details available when contacting support.