• Centralized control of heating and air conditioning installations.
• Remote supervision of the installation.
• Schedule scheduling.
• Automation of breakdown notifications.
• Increase in the useful life of air conditioning equipment.
• Reduction in response times to incidents.
• Reduction of energy consumption.
• Reduction of CO2 emissions.
• Improving indoor air quality in buildings.
• Improvement of the quality of the service provided.
• Trend visualization

The commitment to the environment, energy efficiency and guaranteeing the best service to citizens has led the Las Rozas de Madrid City Council to choose to implement a centralized control system for the air conditioning installations of 12 of its buildings, including schools, auditoriums or sports centers.

Most of the buildings did not have a control system or the one they had was obsolete, they did not work correctly and each one had a different supplier. All this made the efficient management of public resources difficult. The typology of heating and air conditioning equipment and systems incorporated in buildings is very varied: chillers, boilers, air treatment units, fan coil terminal units, rooftop units, solar panels... And all of this had to be integrated into the system. centralized control.

The installation of this SCADA system, acronym for Supervisory Control And Data Acquisition for its acronym in English, open protocol, allows remote supervision of the installation and automation of the communication of breakdowns and incidents, increasing the energy efficiency of the installation in as a whole and facilitating maintenance. The analysis of the information collected by the installation makes it possible to improve preventive maintenance tasks.

All these functionalities allow maintaining adequate comfort and air quality inside buildings, while at the same time implying a reduction in energy consumption and CO2 emissions, making these facilities more sustainable and respectful of the environment. Additionally, associated operating costs are reduced.

The chosen system, from the Carrier brand, is scalable, and can be progressively and easily expanded to the rest of the municipal facilities, thus avoiding the rigidity of classic systems, and generating a shared ecosystem for all buildings. In addition, the system allows the incorporation of other types of installations (irrigation, exterior lighting, accesses...).

Indicators:

• Setpoint/operating temperatures.
• Hours of operation of the units.
• Energy efficiency.
• Energy consumption (kWh) .
• Number of Alarms/Incidents.
• Response time to incident.
• Air quality parameters (renewal air, filtration…)
• User satisfaction level.

• Consumption reduction.
  As a consequence of the implementation of this system, and taking into account that the first of the measures will be the rationalization, centralization and governance of the set temperatures and operating hours of the building facilities, the following energy saving strategies will be established .
• Smart boot.
  The control algorithm allows the starting point of the system (production center and terminal units) to be changed daily, reducing demand and energy consumption peaks and improving user comfort by reaching the set temperature at the necessary time.
• Schedule scheduling.
  Adjust the use of the facility to the actual operation of the building, including weekends, holidays, split days... Each building has a different use schedule.
• Zoning
  The zoning of spaces, taking into account temperature and occupancy, allows each area to be conditioned separately, avoiding conditioning the entire building.
• Adjustment of ventilation flow rates.
  In order to maintain adequate air quality, reducing the associated energy consumption, the air dampers can be managed by deciding the percentage of renewal at each moment.
• Adjustment and control of interior setpoint temperatures.
  In addition to setting the set point based on the different types of occupants that exist in the facility, the user's ability to lower or raise the temperature from the zone thermostat can be set and the temperature range can be decided by managing the occupancy modes. .
• Adjustment and control of production setpoint temperatures.
  Management of hot/cold water production temperatures based on external conditions, reducing the consumption of natural gas and electricity associated with thermal generation.