Description
Introduction
The ABB HCC/S2.2.1.1 Heating/Cooling Circuit Controller (Product ID: 2CDG110220R0011) is an MDRC modular DIN-rail component designed for precision management of hydronic heating or cooling circuits over KNX TP systems. Equipped with 2 channels, each featuring two electronic outputs to drive a 3-point motor-driven mixing valve along with a dedicated 5A relay output to switch the circuit pump, this controller streamlines complex HVAC automation. This device is part of our KNX AC Controller range.

Designed with an integrated internal controller, the unit calculates valve control values by processing flow and return flow temperature measurements against target setpoint temperatures received directly from the KNX bus. Furthermore, 3 binary inputs per channel allow monitoring of pump status via potential-free contacts, and both channels can be bundled together to manage double pump system configurations.
Key Features
- 2-fold channel architecture designed for heating or cooling circuit control in standard MDRC form factor.
- 2 electronic outputs per channel for motor-driven 3-point mixing valve actuation.
- Integrated 5A relay output dedicated to switching the circuit pump.
- 3 binary inputs per channel for monitoring potential-free contacts.
- 10 digital inputs and 10 analog inputs (0 … 10 V / 4 … 20 mA).
- Continuous manipulated variable output logic over KNX (TP) bus.
- IP20 protection rating for installation in standard distribution panels.
- Zero manual operation hardware on the main unit housing.
Benefits
- Integrated Temperature Processing: Evaluates measured flow and return flow temperatures to calculate precise valve control variables based on KNX bus setpoint values.
- Direct Pump Control: Built-in 5A relay outputs switch circuit pumps directly without requiring additional external switching relays.
- Binary Input Monitoring: Includes 3 binary inputs per channel for direct potential-free status feedback from pumps into the control logic.
- Double Pump Compatibility: Channel bundling feature enables direct application and control for double pump HVAC systems.
- Advanced Tool Support: Supports the ABB i-bus Tool for simplified commissioning and comprehensive diagnostic analysis.
- Valve Maintenance Protection: Built-in Valve Protection functions help prevent mechanical valve seized-up states during prolonged inactivity.
Technical Specifications
Applications
- Hydronic heating and cooling circuit control in automated residential and commercial KNX building systems.
- Double pump heating and cooling manifold automation utilizing channel bundling configuration.
Installation Notes
- Mount standard MDRC unit on DIN rail inside an IP20 rated enclosure or panel board.
- Connect temperature sensors and pump potential-free status contacts directly to designated device inputs.
- Use ETS and the ABB i-bus Tool for parameter assignment, commissioning, and system diagnostics.
Developer Resources
- Instructions and Manuals Reference: 2CDG941187P0003
- Declaration of Conformity – CE: 2CDK508232D2701
- ETIM 9 Classification: EC001586 – Heating actuator for bus system
- Official Manufacturer Product Page: https://new.abb.com/products/en/2CDG110220R0011/hcc-s2-2-1-1
FAQ
Does the ABB HCC/S2.2.1.1 support manual operation via physical switches?
No, manual operation hardware controls are not present on this device. Explore more ABB KNX solutions for professional building automation projects.
What bus communication protocol is supported by the HCC/S2.2.1.1?
The device connects natively to KNX (TP) bus systems. For certificates and current technical files, refer to the official ABB documentation.
Can this unit control double pump systems?
Yes, bundling both channels of the device enables control for double pump heating or cooling systems.
What is the switching capacity for the circuit pump output?
Each channel includes a relay output rated at 5A specifically for switching the circuit pump.
What is the exact product model?
The order/model code for this page is HCC/S2.2.1.1. Match it against project documents before purchase.
Who is the manufacturer?
This product is manufactured by ABB.
Conclusion
The ABB HCC/S2.2.1.1 Heating/Cooling Circuit Controller (2CDG110220R0011) offers a complete 2-fold solution for managing 3-point mixing valves and 5A circuit pumps via KNX TP. Featuring integrated flow/return temperature calculation, double pump bundling capability, and support for the ABB i-bus Tool, it provides dependable control for modern hydronic HVAC systems. Installers and system integrators can review our dealer and project support options.








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