Advanced HVAC Regulation with ABB FCC/S1.5.2.1 Fan Coil Controller

The ABB FCC/S1.5.2.1 (2CDG110215R0011) is a dedicated MDRC device engineered to integrate Fan Coil Units (FCU) into the KNX ecosystem. While other models focus on analog control, this version is optimized for PWM valve drives. Therefore, it is the ideal choice for systems using thermoelectric actuators.
Key Features and Functional Benefits:
  • Efficient Fan Management: The controller manages 3-speed fans with built-in interlock logic. Furthermore, it ensures that the fan and valves operate in perfect synchronization. Consequently, this harmony prevents energy loss and improves user comfort.
  • Precision PWM Outputs: In addition to fan control, the device provides two electronic outputs. Specifically, these utilize Pulse Width Modulation to control heating and cooling valves silently. Because of this silent operation, the device is perfect for noise-sensitive areas like bedrooms or private offices.
  • Flexible Monitoring Inputs: Moreover, the unit includes four additional inputs. These can be used for temperature sensors, window contacts, or dew point monitoring. Accordingly, the system can automatically adjust its operation based on real-time room conditions.
  • Integrated Safety Logic: Additionally, the FCC/S1.5.2.1 features a robust “Free-Burn” protection and valve purging function. As a result, it maintains the health of the HVAC infrastructure by preventing valve calcification during long periods of inactivity.
  • Ease of Commissioning: Finally, the device is fully compatible with the ABB i-bus® Tool. This means that technicians can easily monitor status values and simulate operations without deep programming knowledge, saving significant time during setup.
Technical Specifications Summary:
  • Mounting: DIN-rail (MDRC), 6 modular units width.
  • Valve Control: 2 Electronic outputs (PWM) for thermoelectric drives.
  • Fan Control: 3-speed relay control (up to 6A).
  • Inputs: 4 binary/analog inputs for comprehensive room sensing.