Wengart WG02 Thermal Actuator AC 230V Instruction Manual

1. Produit terminéview

The Wengart WG02 Thermal Actuator is designed for use with manifold bypass valves and small dynamic balancing valves in underfloor heating systems. It controls the electrical component of the valve, regulating temperature through the thermal expansion and contraction of a temperature-sensing element. This design ensures quiet operation, compact size, and low power consumption, contributing to energy efficiency.

Image 1: Wengart WG02 Thermal Actuator highlighting features such as thermostatic control, energy saving, stable operation, silent operation, flame retardant PC material, and easy installation.

Caractéristiques principales :

• Contrôle thermostatique : Utilizes thermal expansion for precise temperature regulation.
• Économie d'énergie : Efficient design with low power consumption.
• Fonctionnement stable : Reliable performance without mechanical wear.
• Fonctionnement silencieux : Operates without noise.
• Matériau durable : Constructed from flame-retardant PC material.
• Installation facile : Features a nut connection for quick setup.
• Indicateur LED : Small black dot indicates the actuator's on/off status.
• Fonction de retour par ressort : Valve closes automatically upon power failure.

Image 2: The Wengart WG02 Thermal Actuator shown in an application context, integrated into an underfloor heating manifold system.

2. Spécifications

Image 3: Detailed dimensions of the Wengart WG02 Thermal Actuator, including its length, width, height, and cable length, with the M30x1.5mm thread interface highlighted.

3. Configuration et installation

The Wengart WG02 Thermal Actuator is designed for straightforward installation using a nut connection method. Ensure the valve you are connecting to has an M30 x 1.5 mm thread for compatibility.

3.1 Instructions de câblage

Connect the actuator to your thermostat and power supply as per the diagram below. The actuator requires an AC 230V power source. For optimal control, integrate with a compatible thermostat (e.g., WG-806).

Image 4: Wiring diagram illustrating the connection of the Wengart WG02 Thermal Actuator to an AC 230V power supply and a WG-806 thermostat, including an optional external sensor.

Connexions de câblage :

• Connect the L (Live) and N (Neutral) wires from your AC 230V supply to the corresponding terminals on the thermostat.
• Connect the L1 and N1 terminals from the thermostat to the actuator's power input.
• If using an external sensor, connect it to the designated terminals on the thermostat.

3.2 Montage de l'actionneur

The actuator connects directly to the valve body using its M30 x 1.5 mm nut connection. Ensure a secure fit to prevent leaks and ensure proper operation.

Image 5: Step-by-step installation guide for the Wengart WG02 Thermal Actuator, showing connection to a thermostat and mounting onto a heating manifold. Note the stroke length of 3-4 mm and the 3-5 minute activation time.

1. Ensure the heating system is depressurized and cooled before installation.
2. Thread the actuator onto the M30 x 1.5 mm valve connection. Hand-tighten first, then use a wrench if necessary to ensure a snug fit without overtightening.
3. Connect the electrical wires as shown in the wiring diagram (Image 4).
4. Once powered on, the actuator will take approximately 3-5 minutes to fully open or close, achieving a stroke length of 3-4 mm.

Image 6: Detailed breakdown of the Wengart WG02 Thermal Actuator, illustrating its excellent paraffin-driven element, simple nut connection for easy disassembly, and the LED indicator light.

4. Mode d'emploi

The Wengart WG02 Thermal Actuator operates in conjunction with a thermostat to regulate the flow of heating fluid. It functions based on the thermal expansion and contraction of a paraffin element, driven by PTC heating.

4.1 Actuator Status Indication

The actuator features a 360-degree LED indicator (a small black dot) that illuminates when the actuator is powered and actively opening the valve. When the LED is off, the actuator is not powered, and the valve is closed (normally closed operation).

Image 7: Illustration of the actuator's operational status. When the thermostat is heating, the electrothermal actuator opens, and the 360° LED indicator is on. When the thermostat is not heating, the actuator closes, and the LED indicator is off.

4.2 Thermostat Integration

When used with a compatible thermostat, the actuator enables separate room control, reducing energy consumption. The valve will close when the room temperature reaches the set temperature on the thermostat, and open when heating is required.

4.3 Power Failure Safety

The actuator is designed with a spring return function, meaning the valve will automatically close in the event of a power failure. This ensures a failsafe operation, preventing uncontrolled heating.

5. Entretien

The Wengart WG02 Thermal Actuator is designed for long-term, maintenance-free operation due to its non-mechanical transmission and durable components. No regular lubrication or component replacement is typically required.

Vérifications recommandées :

• Periodically inspect the actuator and wiring for any visible damage or loose connections.
• Ensure the LED indicator functions correctly when the thermostat calls for heat.
• Keep the actuator free from dust and debris to maintain optimal performance.

6. Dépannage

If you encounter issues with your Wengart WG02 Thermal Actuator, refer to the following troubleshooting steps:

• Actuator not opening/closing:
  • Check if the thermostat is calling for heat (for opening) or not (for closing).
  • Verify that the actuator is receiving AC 230V power.
  • Vérifiez que tous les branchements électriques ne sont ni desserrés ni endommagés.
  • Ensure the actuator is securely threaded onto the valve.
• Le voyant LED ne s'allume pas :
  • Confirm the actuator is powered and the thermostat is actively calling for heat.
  • Check the power supply to the actuator.
• Valve not fully opening or closing:
  • Allow the full 3-5 minutes for the actuator to complete its stroke.
  • Ensure there are no obstructions preventing the valve from moving freely.

If problems persist after performing these checks, consult a qualified technician.

7. Garantie et assistance

Specific warranty details for the Wengart WG02 Thermal Actuator are not provided in this manual. Please refer to your purchase documentation or contact the retailer/manufacturer directly for warranty information and technical support.