Description
Introduction
The ABB HCC/S2.1.1.1 Heating/Cooling Circuit Controller (Product ID: 2CDG110218R0011) is a 2-fold MDRC device engineered for dedicated hydronic management over KNX TP bus systems. Each of its 2 independent channels combines a 0…10 V continuous analog output for mixing valve control with a 5 A relay output designed for direct circuit pump switching. This device is part of our KNX AC Controller range.

Designed for integration into HVAC control systems, the unit measures flow and return flow temperatures to calculate exact valve positions via its internal controller. By receiving target setpoint temperatures over the KNX bus and supporting channel bundling for double pump configurations, the HCC/S2.1.1.1 ensures efficient temperature regulation alongside compatibility with the ABB i-bus Tool for advanced diagnostics.
Key Features
- 2-fold heating/cooling circuit controller in a Modular DIN Rail Component (MDRC) format.
- Continuous 0…10 V analog outputs dedicated to continuous mixing valve position control.
- Integrated 5 A switching relays for operational pump control per channel.
- Binary inputs designed for monitoring potential-free pump status feedback.
- Native KNX (TP) bus integration for setpoint communication and system telemetry.
- Fully supported by the ABB i-bus Tool for diagnostics and efficient commissioning.
- IP20 protection rating enclosure (EAN: 4016779011617).
Benefits
- Precise hydronic temperature adjustment via two 0…10 V analog outputs driving continuous mixing valves.
- Direct equipment control with dedicated 5 A switching relay outputs for heating and cooling circuit pumps.
- Integrated pump feedback monitoring using 3 binary inputs for potential-free contact status detection.
- Autonomous internal calculations using flow and return flow temperature measurements against KNX bus setpoints.
- Flexible application support allowing channel bundling for double pump system setups.
- Long-term mechanical protection provided by integrated automatic valve protection routines.
Technical Specifications
Applications
- Dual-channel heating or cooling circuit control in commercial and residential KNX installations.
- Hydronic mixing circuit management requiring continuous 0…10 V valve actuation and direct 5 A pump switching.
- Double pump heating and cooling plant configurations utilizing bundled channel operation.
Installation Notes
- Mount the MDRC device on a standard DIN rail within an IP20-rated distribution enclosure.
- Connect the 0…10 V continuous analog outputs to mixing valve actuators and 5 A relay outputs to system pumps.
- Wire potential-free pump status contacts to the binary inputs and establish KNX TP bus connectivity before commissioning via the ABB i-bus Tool.
Developer Resources
- ABB Instructions and Manuals Document ID: 2CDG941187P0003.
- CE Declaration of Conformity Document ID: 2CDK508230D2701.
- Advanced diagnostics and parameterization support via ABB i-bus Tool.
FAQ
What outputs are provided on each channel of the ABB HCC/S2.1.1.1?
Each of the 2 channels features one 0…10 V continuous analog output for controlling mixing valves and one 5 A relay output for switching the circuit pump. Explore more products from ABB for professional building automation projects.
Does the HCC/S2.1.1.1 support double pump systems?
Yes, both control channels on the device can be bundled together to accommodate double pump system applications. For certificates and current technical files, refer to the manufacturer technical documentation.
How are valve control values calculated by the device?
The integrated controller measures the flow and return flow temperatures and calculates the continuous valve position based on the setpoint temperature received over the KNX bus.
Does this controller support manual physical operation on the unit?
No, manual operation controls are not included on the physical device interface.
What is the exact product model?
The order/model code for this page is HCC/S2.1.1.1. Match it against project documents before purchase.
Who is the manufacturer?
This product is manufactured by ABB.
Conclusion
The ABB HCC/S2.1.1.1 (SKU: HCC/S2.1.1.1) delivers reliable 2-fold control for hydronic heating and cooling circuits by combining 0…10 V continuous valve modulation with 5 A pump switching relays. Installers and system integrators can review our dealer and project support options.
Featuring built-in valve protection, KNX TP connectivity, and ABB i-bus Tool support, it offers a complete MDRC solution for precise HVAC integration.








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