ABB FCC/S1.1.2.1 KNX Fan Coil Controller

Description

Introduction

The ABB FCC/S1.1.2.1 Fan Coil Controller (Product ID: 2CDG110211R0011) is an MDRC module engineered for precise climate regulation in KNX (TP) building automation installations. Developed specifically for controlling fan coil units, this device features two electronic outputs capable of operating two thermoelectric valve drives or one motor-driven valve drive for heating and cooling circuits. This device is part of our KNX system components range.

Equipped with an integrated room temperature controller, the unit includes three dedicated relay outputs for 3-stage fan speed management and an additional relay output that switches loads up to 16 A for auxiliary heating. Four versatile inputs allow room status monitoring using window contacts, dew point sensors, level sensors, or temperature sensors, as well as direct connection to analog room control units such as SAR/A or SAF/A.

Key Features

• Product Order Code / SKU: FCC/S1.1.2.1 (Product ID: 2CDG110211R0011, EAN: 4016779011433).
• Bus System Interface: Standard KNX (TP) connection in Modular DIN Rail Component (MDRC) format.
• Outputs: 5 total outputs (2 electronic PWM valve outputs + 3 fan stage relay outputs).
• Auxiliary Relay Capacity: Dedicated output capable of switching resistive loads up to 16 A.
• Inputs: 4 digital/analog inputs for status monitoring and analog room control units (SAR/A, SAF/A).
• Manual Override: Physical front-panel controls for easy manual operation and testing.
• Protection Rating: IP20 enclosure rating for standard distributor cabinet installation.

Benefits

• Integrated Room Temperature Control: Features an onboard controller that regulates outputs directly based on target climate parameters.
• Flexible Valve Drive Compatibility: Drives two thermoelectric valve drives or one motor-driven valve drive via electronic PWM outputs.
• Multi-Stage Fan & Auxiliary Load Switching: Integrates three relay outputs for fan control plus a 16 A relay output for auxiliary heating.
• Comprehensive Room Monitoring: Accepts four digital or analog inputs for window status, dew point, liquid level, and temperature sensing.
• Advanced Diagnostics & Protection: Supports the ABB i-bus Tool for simplified commissioning and includes an integrated Valve Protection function.

Technical Specifications

Specification	Value
Extended Product Type:	FCC/S1.1.2.1
Special Functions:	Valve Protection
Product ID:	2CDG110211R0011
Instructions and Manuals:	2CDG941188P0002
Number of Outputs:	5
Number of Digital Inputs:	4
Manual Operation:	Yes
Number of Batteries:	0
Declaration of Conformity – CE:	2CDK508222D2701
2CDG120049R0011	TSA/K230.2 Thermoelectric Valve Drive, 230 V
2CKA006134A0346	SAR/A1.0.1-24 RT-control element
2CDG120050R0011	TSA/K24.2 Thermoelectric Valve Drive, 24 V
EAN:	4016779011433
Catalog Description:	FCC/S1.1.2.1 Fan Coil Controller, 2 x PWM, Manual Operation, 3-stage, MDRC
Long Description:	For the control of fan coil units. Via two electronic outputs, two thermoelectric or one motor-driven valve drive can be controlled for heating and cooling. For the fan control the devices features three relay outputs. A relay output switches an additional load of up to 16 A, such as auxiliary heating. Over 4 inputs the room status can be detected and monitored (Use for window contact, dew point sensor, level sensor or temperature sensor). Also it is possible to connect one analog room control unit (SAR/A or SAF/A) to the inputs of the device. The device has an integrated room temperature controller for the control of the room temperature, which can be used directly to control the outputs of the device. The FCC/S 1.1.2.1 features an easy to use manual operation. The device supports the ABB i-bus Tool for advanced diagnosis and improved commissioning.
Compatible Bus Systems:	KNX (TP)
Product Range:	KNX
Degree of Protection:	IP20
ETIM 9:	EC001586 – Heating actuator for bus system
WEEE B2C / B2B:	Business To Consumer
Identifier	Description
Environmental Degree of Protection	IP20
Degree of Protection	IP20
Mounting Type:	DIN-Rail
Installation Instructions and Manuals	2CDG941188P0002 Mounting Type: DIN-Rail

Applications

• Fan Coil Unit Management: Direct multi-stage fan speed control and PWM valve operation for heating and cooling systems.
• Auxiliary Heating Integration: Managing supplemental heating elements requiring up to 16 A switching capacity.
• Analog Element Interface: Connecting classic analog room control units (SAR/A or SAF/A) into standard KNX topology.

Installation Notes

• Mounting & Enclosure: Mount as a Modular DIN Rail Component (MDRC) inside a distribution panel ensuring an IP20 environment.
• Wiring Configuration: Connect room sensors or analog control units to inputs 1-4 and match valve drive types (thermoelectric or motor-driven) to the electronic outputs.
• Commissioning: Configure device parameters using ETS and leverage the ABB i-bus Tool (alongside manual 2CDG941188P0002) for diagnostics.

Developer Resources

• ABB FCC/S1.1.2.1 Instructions and Manuals Reference: 2CDG941188P0002.
• Declaration of Conformity – CE: 2CDK508222D2701.
• Diagnostic Software Support: Compatible with ABB i-bus Tool for advanced testing.

FAQ

Which valve drives are compatible with the electronic outputs of the FCC/S1.1.2.1?

The device can control two thermoelectric valve drives (such as TSA/K230.2 230V or TSA/K24.2 24V) or one motor-driven valve drive. Explore more products from ABB for professional building automation projects.

What is the switching capacity of the auxiliary heating output?

The additional relay output supports switching loads up to 16 A. For certificates and current technical files, refer to the official product documentation.

What types of sensors can be wired to the four inputs?

The inputs support window contacts, dew point sensors, level sensors, temperature sensors, or analog room control units like SAR/A and SAF/A.

Does the FCC/S1.1.2.1 support manual operation?

Yes, the unit features manual operation controls for direct localized testing and commissioning.

What is the exact product model?

The order/model code for this page is FCC/S1.1.2.1. Match it against project documents before purchase.

Who is the manufacturer?

This product is manufactured by ABB.

Conclusion

The ABB FCC/S1.1.2.1 KNX Fan Coil Controller offers a complete, DIN-rail mounted solution for HVAC room control, combining valve actuation, 3-speed fan regulation, 16 A load switching, and multi-sensor input monitoring. Its built-in temperature controller and ABB i-bus Tool support make it a reliable choice for professional KNX building projects. Installers and system integrators can review our dealer and project support options.