1. Introduction
This manual provides essential information for the installation, operation, and maintenance of the Dieffematic FAAC 844 ER Z16 Sliding Gate Motor. This 230V gearmotor is designed for automating sliding gates with a maximum weight of 1800 kg, suitable for commercial or industrial applications. Please read this manual thoroughly before installation and operation to ensure safe and correct use of the product.
2. Safety Information
Important Safety Instructions:
- Installation and maintenance must be performed by qualified personnel only.
- Disconnect power before performing any service or maintenance.
- Ensure all electrical connections comply with local regulations and standards.
- The gate area must be kept clear of obstructions and personnel during operation.
- This motor features an anti-crushing safety system. Regularly check its functionality.
- In case of power failure, use the key release device to manually operate the gate.
- Do not allow children to play with or near the gate operating system.
3. Product Overview and Features
The Dieffematic FAAC 844 ER Z16 is a robust sliding gate motor engineered for high-performance and durability.
Key Features:
- Powerful 230V Gearmotor: Ensures reliable operation for heavy gates.
- High Usage Frequency: Rated at 70%, suitable for frequent use in commercial or industrial settings.
- Max Gate Weight Capacity: Supports gates up to 1800 kg.
- Anti-Crushing Safety: Integrated system to prevent injury or damage.
- Irreversible Gearmotor: Eliminates the need for additional electric locks, enhancing security.
- Manual Release Mechanism: Key-operated device allows manual gate operation during power outages.
- Oil Bath Twin-Disc Clutch: Provides smooth and consistent torque transmission.
- Magnetic Limit Switch: Ensures precise stopping and positioning of the gate.
- Greentech System Compatibility: Designed to work with 844 R + E145 systems for enhanced performance.

Figure 1: Front view of the Dieffematic FAAC 844 ER Z16 sliding gate motor. This image shows the compact and robust design of the motor unit, with the FAAC branding visible on the top cover.
4. Specifications
| Specification | Value |
|---|---|
| Brand | Dieffematic |
| Model Number | 109837 |
| Voltage | 230 V |
| Max Gate Weight | 1800 kg |
| Usage Frequency | 70% |
| Clutch Type | Oil bath twin-disc |
| Limit Switch Type | Magnetic |
| Safety Feature | Anti-crushing system |
| Manual Release | Key-operated device |

Figure 2: Two views of the Dieffematic FAAC 844 ER Z16 motor, showcasing the external casing and the drive gear. The image on the right highlights the robust gear mechanism responsible for moving the sliding gate.
5. Setup and Installation
Installation of the Dieffematic FAAC 844 ER Z16 motor requires specialized knowledge and should only be performed by certified technicians. Incorrect installation can lead to serious injury or damage to the equipment.
General Installation Steps:
- Site Preparation: Ensure the gate track is clean, level, and free from obstructions. Prepare a stable concrete base for the motor unit.
- Mounting the Motor: Securely fasten the motor unit to the prepared base, ensuring proper alignment with the gate rack.
- Installing the Gate Rack: Attach the gate rack to the sliding gate, ensuring it meshes correctly with the motor's drive gear.
- Electrical Connections: Connect the motor to the main power supply (230V) and integrate any necessary control units, safety photocells, and accessories. All wiring must comply with local electrical codes.
- Limit Switch Adjustment: Adjust the magnetic limit switches to define the gate's open and closed positions accurately.
- Safety Device Testing: Thoroughly test all safety features, including the anti-crushing system and photocells, to ensure they function correctly.
- Manual Release Test: Verify the manual key release mechanism operates smoothly.

Figure 3: Internal view of the Dieffematic FAAC 844 ER Z16 motor, showing the control board and electronic components. This view is typically accessed during installation and maintenance by qualified technicians.
6. Operating Instructions
Once installed and configured, operating the Dieffematic FAAC 844 ER Z16 sliding gate motor is straightforward.
Standard Operation:
- Automatic Operation: Use the remote control or wall-mounted button to send a command. The gate will open or close automatically.
- Stop Function: Pressing the command button again during gate movement will stop the gate.
- Safety Features: The anti-crushing system and photocells will automatically stop or reverse the gate if an obstruction is detected.
Manual Release (Power Failure):
In the event of a power outage, the gate can be operated manually:
- Locate the manual release mechanism on the motor unit.
- Insert the provided key into the lock and turn it to disengage the motor.
- The gate can now be pushed open or closed by hand.
- To re-engage the motor, turn the key back to its original position and remove it. The motor will re-engage automatically when power is restored and a command is given.

Figure 4: Side view of the Dieffematic FAAC 844 ER Z16 motor, illustrating the mounting brackets and the manual release cover. This perspective shows how the unit is secured to its base.
7. Maintenance
Regular maintenance ensures the longevity and optimal performance of your Dieffematic FAAC 844 ER Z16 sliding gate motor. Maintenance should be performed by qualified personnel.
Recommended Maintenance Schedule:
- Monthly:
- Inspect the gate track and rollers for debris or damage. Clean as necessary.
- Check the gate rack for proper meshing with the motor gear.
- Test the safety photocells and anti-crushing system.
- Every 6 Months:
- Inspect all electrical connections for signs of wear or corrosion.
- Check the oil level in the gearmotor (if applicable and accessible, refer to detailed service manual).
- Lubricate moving parts as recommended by the manufacturer (refer to detailed service manual).
- Verify the integrity of mounting bolts and brackets.
Always disconnect power to the motor before performing any maintenance tasks.

Figure 5: An alternative view of the Dieffematic FAAC 844 ER Z16 motor, showing its overall dimensions and the robust construction designed for outdoor use. This image provides a good perspective for understanding the unit's footprint.
8. Troubleshooting
This section addresses common issues you might encounter with your sliding gate motor. For complex problems, contact a qualified technician.
| Problem | Possible Cause | Solution |
|---|---|---|
| Motor does not respond to commands. | No power, remote control battery flat, safety devices triggered. | Check power supply. Replace remote battery. Inspect photocells for obstructions. |
| Gate stops unexpectedly during operation. | Obstruction detected by safety system, limit switch issue. | Clear any obstructions. Check limit switch settings. |
| Gate operates slowly or with difficulty. | Friction in gate track/rollers, low oil level, worn components. | Clean and lubricate gate track. Consult technician for internal inspection. |
| Manual release mechanism is stiff. | Lack of lubrication, corrosion. | Apply a suitable lubricant. Ensure the key is fully inserted. |
9. Warranty and Support
For warranty information and technical support, please refer to the documentation provided with your purchase or contact your authorized Dieffematic dealer. Keep your proof of purchase and model number (109837) readily available when seeking support.
Manufacturer: Dieffematic
Model: 109837
