Visualization and control of the heat exchanger at Vagner Department Store in Brno

Vagner Department Store is well-known store in Brno with more than hundred years of tradition. The department store was established in 1907 by Vagner brothers. The company started with retail sale of stationery and grocery products. One year later, Vagner brothers extended its business activities about retail sale of furniture. In 1927, Vagner brothers bought a new building at Ceska street no. 18 in Brno, Czech Republic. The building was reconstructed and named as Vagner Department Store.

In 1948 the department store was nationalized. The heritors of Vagner brothers got back the building in 1991. One year later, after the complete reconstruction, Vagner Department Store was again reopened.

Control system

In 2008, a new heat exchanger was installed in the building. The heat exchanger processes are controlled by the Tecomat PLC device (Foxtrot® CP-1005 model), fitted in the distribution board. Visualization of the heating and airconditioning processes is provided by the Reliance SCADA/HMI system, installed on the control computer. Whole contract was carried out by two companies – ActivHouse (exchanger equipment contractor) and S&V ProIB (control and visualization systems contractor).

The Reliance system is responsible for the control and monitoring of:

• Domestic hot water heating and pressure
• Steam valves in heating circuit
• Airconditioning process
• Hot-water reservoir tanks including control of water level and water pressure
• Pressure level in the heating circuits
• Air pressure level in the airconditioning unit
• Adding water to heating system
• Local control over the ID-14 operator panel

Authorized operators can even view or control the heat exchanger processes using the Reliance 4 Web Client installed on any remote computer or notebook that is connected to the Internet. On top of that, an important alarms and events can be sent on operators' cell phones as text messages (SMS).

Examples of visualization windows

Visualization of the water heating process

Heating schedule setup