ABB HCC/S2.2.2.1 KNX Heating/Cooling Circuit Controller (2CDG110221R0011)

Description

Introduction

The ABB HCC/S2.2.2.1 (Product ID 2CDG110221R0011) is a 2-fold Modular DIN-Rail Component (MDRC) designed for high-efficiency management of heating and cooling circuits over KNX (TP) bus systems. Featuring 4 outputs and 10 digital inputs, this continuous manipulated variable actuator handles the demands of modern hydronic HVAC distribution by driving 3-point motor-driven mixing valves and managing primary pump switching. This device is part of our KNX AC Controller range.

Engineered with an integrated controller, the unit calculates valve positioning by measuring flow and return flow temperatures against target setpoints received directly via the KNX bus. Additional features such as valve protection, potential-free binary input feedback for pump status monitoring, support for double pump systems, manual local operation, and compatibility with the ABB i-bus Tool ensure reliable operation and streamlined commissioning.

Key Features

• 2-fold circuit control designed for 3-point motor-driven mixing valves.
• Integrated 5A relay output dedicated to circulation pump switching.
• 10 total digital inputs, including 3 potential-free binary inputs per channel for pump monitoring.
• Integrated controller utilizing flow and return flow temperature inputs for local valve calculation.
• Direct setpoint temperature reception over standard KNX (TP) bus lines.
• IP20 rated Modular DIN-Rail Component (MDRC) construction.
• Manual local control functionality for on-device operation during setup and maintenance.

Benefits

• Dual-Circuit Automation: Controls up to two independent heating or cooling circuits using electronic outputs for 3-point motorized mixing valves.
• Direct Pump Switching: Equipped with a 5A relay output per circuit to directly switch circulation pumps without external contactors.
• Pump Status Integration: Monitors pump operational feedback via 3 binary inputs per channel using potential-free contacts for robust diagnostic feedback.
• Double Pump Compatibility: Supports bundling of both device channels to manage double pump circulation systems within a single controller.
• Integrated Diagnostic Capabilities: Fully supports the ABB i-bus Tool for fast commissioning, status verification, and system diagnosis.
• Automated Valve Protection: Includes built-in valve protection functionality to prevent valve seizing during long idle periods.

Technical Specifications

Specification	Value
Extended Product Type:	HCC/S2.2.2.1
Special Functions:	Valve Protection
Product ID:	2CDG110221R0011
Instructions and Manuals:	2CDG941187P0003
Number of Outputs:	4
Number of Digital Inputs:	10
Manual Operation:	Yes
Number of Batteries:	0
Declaration of Conformity – CE:	2CDK508233D2701
EAN:	4016779011648
Catalog Description:	HCC/S2.2.2.1 Heating/Cooling Circuit Controller, 2-f, 3-point, Man Op, MDRC
Long Description:	For the control of a heating or cooling circuit. The device has 2 channels, each with two electronic outputs to control a motor-driven mixing valve (3-Point) of a heating or cooling circuit as well as a relay output (5A) to switch the pump of the circuit. Via 3 binary inputs it is possible to monitor the status of the pump (via potential free contacts) and integrate these feedback into the control of the pump. The flow and return flow temperature are measured and used for the calculation of the control value for the valve output in the integrated controller. The set point temperature is received via the KNX bus. By bundling both channels of the device it is also possible to use it for double pump systems The HCC/S 2.2.2.1 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)
Manipulated Variable:	Continious
Product Range:	KNX
Degree of Protection:	IP20
ETIM 9:	EC001586 – Heating actuator for bus system
WEEE B2C / B2B:	Business To Consumer
Environmental Degree of Protection	IP20
Degree of Protection	IP20
Mounting Type:	DIN-Rail
Installation Instructions and Manuals	2CDG941187P0003 Mounting Type: DIN-Rail
Instructions and Manuals	2CDG941187P0003 Mounting Type: DIN-Rail
Data Sheet, Technical Information:	2CDC508249D0211
Voltage Range:	24 … 230 V AC/DC

Applications

• Hydronic Heating and Cooling Circuits: Direct control of motorized 3-point mixing valves and circulation pumps in commercial and residential KNX installations.
• Double Circulation Pump Systems: Channel-bundling configuration for primary and secondary redundant pump setups.
• HVAC Monitoring & Feedback: Integration of pump operational status into central KNX automation via potential-free contact inputs.

Installation Notes

• Install as a Modular DIN-Rail Component (MDRC) inside a suitable distribution board ensuring an IP20 environment.
• Connect the KNX TP bus line and wire 3-point mixing valve actuators to the electronic outputs and circulation pumps to the 5A relay outputs.
• Wire temperature sensors and potential-free feedback contacts to the appropriate digital inputs according to manual 2CDG941187P0003.
• Use the local manual operation interface or the ABB i-bus Tool to test outputs and pump feedback prior to final ETS configuration.

Developer Resources

• Instructions and Manuals Reference: 2CDG941187P0003
• Declaration of Conformity – CE: 2CDK508233D2701
• ABB i-bus Tool support for advanced commissioning and diagnostics

FAQ

What type of mixing valve actuators does the ABB HCC/S2.2.2.1 support?

The device features electronic outputs specifically designed to control motor-driven 3-point mixing valves for heating or cooling circuits. Explore more ABB building automation products for professional building automation projects.

How are flow and return temperatures used by the controller?

The integrated controller measures flow and return flow temperatures via connected inputs to calculate the required valve positioning based on setpoints received over the KNX bus. For certificates and current technical files, refer to the official product documentation.

Can the HCC/S2.2.2.1 handle double pump systems?

Yes, by bundling both channels of the device, it can be configured to manage double pump circulation systems.

What is the rated capacity of the internal pump relay outputs?

The device includes a 5A relay output per circuit dedicated to switching the circulation pump.

What is the exact product model?

The order/model code for this page is HCC/S2.2.2.1. Match it against project documents before purchase.

Who is the manufacturer?

This product is manufactured by ABB.

Conclusion

The ABB HCC/S2.2.2.1 Heating/Cooling Circuit Controller (2CDG110221R0011) provides complete hydronic circuit management with electronic 3-point valve outputs, direct 5A pump relay control, and continuous calculation based on flow temperature feedback. With local manual operation, double-pump support, and full ABB i-bus Tool compatibility, it offers a reliable solution for professional KNX HVAC deployments. Installers and system integrators can review our KNX dealer program options.