Joventa Damper Actuator

Joventa damper actuators are a line of electric actuators used to control air dampers in heating, ventilation, and air conditioning (HVAC) systems. They are manufactured by Joventa, a Swiss company specializing in building automation components.

Key Features and Characteristics

• Application: They are primarily used to open, close, or modulate air dampers in ventilation and air conditioning systems. Some models are also designed for specific applications like fire and smoke control or for use with valves.

   

• Design: Joventa actuators are known for their compact design and a universal adapter that allows for direct mounting on various damper shafts (both round and square).

   

• Control Signals: They can be controlled using several methods, including:

  • 2-point or 3-point control (On/Off): This is a simple control method where the actuator is either fully open or fully closed.

     

  • Modulating (Proportional) control: These actuators use a continuous control signal (e.g., 0-10V DC or 4-20mA) to position the damper at any point within its rotation range. This allows for more precise airflow control.

     

• Types: Joventa offers different series of damper actuators tailored to specific needs:

  • Standard Series: Designed for medium to large air dampers, with torque ratings from 8 Nm to 32 Nm.

     

  • Silence Series: Developed for small to medium air dampers, with a focus on low noise operation.

     

  • Spring Return: These actuators are designed for safety applications. When power is applied, the actuator drives the damper to the operational position while tensioning an internal spring. If power is lost, the spring energy immediately returns the damper to a pre-defined safety position.

     

  • Other series: Miniature, high-speed, and fire-fighting actuators are also available.

     

Technical Specifications

While specifications vary by model, common features include:

• Torque: Models range from low torque (e.g., 2 Nm) for small dampers to high torque (up to 32 Nm or more) for larger ones.

   

• Voltage: Common supply voltages are 24V AC/DC and 230V AC.

   

• Rotation Angle: The standard rotation angle is 90°, though some models can be limited or adjusted to a different range.

   

• Auxiliary Switches: Many models come with adjustable auxiliary switches, which can be used to signal the damper's end positions or to perform other switching functions.

   

• Parallel Operation: Many Joventa actuators can be wired to operate in parallel, allowing a single control signal to operate multiple actuators simultaneously.

   

• Maintenance: They are typically maintenance-free.

   

Installation and Operation

Joventa actuators are designed for direct mounting on a damper shaft, eliminating the need for complex linkages. They often feature a manual release button to allow for manual positioning of the damper. The direction of rotation can often be selected or reversed to match the system's requirements. Wiring diagrams and detailed instructions are provided in the product's documentation to ensure proper installation and operation.