System Integration and Plant Engineering via sct. Smart-Gate

System Architecture

The renovated heating and cooling system in Chur replaces the gas heating with a highly efficient environmental energy solution. The hydraulic basis consists of two brine-to-water heat pump modules of the type sct. 45 WP (86.7 kW) and one Energy Cube (H2-Type1).

Heating capacity: 76 kW

Cooling capacity: 73 kW

Heat distribution: Underfloor heating

The Role of the sct. Smart-Gate as System Orchestrator

The sct. Smart-Gate is the central control unit that integrates the hydraulic components (heat pumps and Energy Cube) into a networked control environment.

Signal Processing & I/O Management: The Smart-Gate serves as a logical interface for the system's integrated actuators and sensors (e.g., A01, A02, A03, A117). It aggregates the operating states of the heat pump modules and synchronizes them with the Energy Cube to ensure precise load distribution.

Operating Mode Management: Switching between heating and cooling periods is intelligently controlled via the Smart-Gate, with hydraulic volume flows adjusted according to seasonal requirements (76 kW heating capacity vs. 73 kW cooling capacity). This switching function also enables potential defrosting.

System Transparency: Through the implementation of the Smart-Gate, the entire system technology – from the heat source to the distribution unit – becomes digitally recordable and controllable for monitoring purposes. This enables continuous monitoring of efficiency values and allows for data readout at 5-second intervals if required.

Conclusion for System Engineering

Through the use of the sct. Smart-Gate, the complexity of the conversion (renovation from gas to brine-to-water heat pumps) was transformed into an orderly, automated Plug & Heat solution. The Smart-Gate forms the essential bridge between thermal generation and intelligent heating control.