Visualization and control of the Grand Hotel Hradec in the Czech town of Pec pod Snezkou

October 6, 2021 | Reliance SCADA

The Grand Hotel Hradec, a high-quality piece of architecture situated in the town of Pec pod Snezkou, was put into operation in 2020. Surrounded by the beautiful Giant Mountains, the hotel has a lot to offer: 68 luxurious rooms, a stylish restaurant, or a delightful wellness center.

All of this is reflected in the building's state-of-the-art technological systems, such as HVAC, lighting, underfloor heating, and audio systems.

To monitor and control these systems, four Tecomat Foxtrot CP-1001 PLCs (control) and the Reliance SCADA/HMI system (visualization) are used in the hotel.

Control system

The system is used to control and monitor:

Heating
Hot water preparation
Cooling
Ventilation
Lighting in common spaces
DALI light scenes
Restaurant and facade lighting
DALI scenes in conference rooms
Local control (restaurant, conference rooms) via wall-mounted tablets
Audio systems in zones including the volume controls (communication via Ethernet)
Room modes linked to the hotel's heating and ventilation (underfloor heating, heat-recovery unit air reheating, blocking according to the status of the energy saver – guest entry card, window status – open/closed)
Air handling units for the conference rooms and restaurant

Hotel guests can control ventilation and heating in their rooms via a Touch@Glass switch.

The hotel's manager and receptionist can monitor all the technological systems via Reliance Control Server and a thin client (Reliance Web Client). In addition, the manager has full access to the system parameters. The receptionist, however, can only access the reception-related parameters.

The Reliance visualization project is divided into the following sections:

Hotel room overview by floors including details
Area details – wellness center and conference rooms (meeting) with the possibility to quickly change parameters
Scene control and lighting overview
Ventilation units and settings overview
Heating overview
Main boiler room overview including technological details
Electrical energy consumption overview (both total consumption and in each part of the building)
Service menu for setting the building's global parameters and for quick actions (bulk setting room modes – downtime/uptime)

The visualization project is supplemented with the PLC website that can be displayed on the wall-mounted tablets (restaurant, conference rooms) to quickly control a particular area (heating, ventilation, light scenes, audio).