As a leading manufacturer of control equipment for ventilation systems, Sentera is proud to present its latest product - the ACT-H-125. With the introduction of this circular motorized control damper, the Sentera product range becomes even more complete and better adapted to the current needs in the HVAC sector.
Round motorized control damper
The Sentera ACT-H-125 is a round motorized control damper for air ducts with a diameter of 125 mm. Because the channels are slid into the damper, no extra air resistance is created thus ensuring optimum efficiency. After mounting, the connection between the damper and the duct must be sealed with aluminum tape to ensure airtightness.
RJ45 socket and a classic terminal block
The ACT-H-125 is equipped with an RJ45 socket and a classic terminal block. You can therefore choose Modbus RTU connection or connection with an analogue control signal. When the damper is connected via Modbus RTU, the data and the 24 VDC power supply are connected by one single cable. If the terminal block is used, 2 cables must be provided: 1 for the 24 VDC power supply and 1 for the analogue signal (0-10 VDC / 0-20 mA / PWM).
Controlled via analogue signal or Modbus RTU
The damper blade position can be controlled by analog signal or via Modbus RTU communication. The minimum and maximum position and many other parameters can also be adjusted in the Modbus registers. The damper blade offers a Class 4 airtightness, while the casing offers a Class D airtightness (EN1751). It can control airflows with a speed between 0 and 10 m/s.
Optimal demand based control of the ventilation system
The ACT-H-125 can be combined with many Sentera sensors. This ensures optimal demand based control of the ventilation system. For example, when using a Sentera CO2 sensor, it will automatically adjust the damper blade position when more or less ventilation is required. A Sentera differential pressure controller that regulates the fan speed then provides an adjusted air flow rate when one or more dampers are opened or closed.
You will find all technical information as well as product photos of the ACT-H-125 on the Sentera website. For more information and prices, please contact one of our employees.