UNI EN ISO 52120-1
3 Enrollments Level : BasicRelevance
Energy efficiency in buildings is a core objective of the European energy strategy. Building Automation and Control Systems (BACS) play a central role in reducing consumption, improving user comfort, and enabling smart integration with the grid. The UNI EN ISO 52120-1 standard provides a unified framework to assess and classify the energy performance of BACS and Technical Building Management (TBM), replacing the previous EN 15232-1. Its adoption supports both public and private stakeholders in planning renovations, managing compliance, and optimizing building operations. Mastery of this standard is essential for professionals engaged in energy audits, HVAC design, and smart building technologies.
Abstract
This module introduces the UNI EN ISO 52120-1:2022 standard, focusing on how Building Automation and Control Systems (BACS) and Technical Building Management (TBM) contribute to the energy performance of buildings. The content includes the classification of BACS into energy performance classes (A to D), minimum functional requirements, and compliance criteria based on EPBD 2018/844. Learners will explore technical capabilities such as individual room control, time scheduling, and weather compensation, and understand how these functionalities impact energy savings, CO₂ reduction, and user comfort. The module also presents application guidelines and real-case assessments to support the technical and economic feasibility of BACS implementation.
Learning Outcomes
Upon successful completion of this module, learners will be able to:
1. Describe the purpose and scope of the UNI EN ISO 52120-1 standard and its alignment with EPBD requirements.
2. Identify and explain the four BACS efficiency classes and their technical characteristics.
3. Recognize the mandatory requirements for BACS in new and renovated buildings.
4. Evaluate the energy and economic impact of automation functionalities such as individual room control and scheduling.
5. Apply verification criteria and feasibility assessment methods to ensure compliance with the standard.
Analyze case studies and real-world implementations of BACS for different building types.
Prior Knowledge
Learners are expected to have the following knowledge before starting this module:
1. Basic understanding of building technical systems (HVAC, lighting, hot water).
2. Familiarity with energy efficiency concepts and building energy needs.
3. General knowledge of European and national energy performance regulations.
4. Ability to interpret technical documentation and automation diagrams.
Basic awareness of control functions in automation systems.
Keywords
- BACS
- ISO52120
- EnergyEfficiency
- SmartBuildings
- BuildingAutomation
- EPBD
- HVACControl
- GreenBuildings
- BuildingRegulations
- EnergyAuditing
Elements
1. About this Building Block
Descriptor
Description of the Building Block.
2. Self-assessments
P4BB_BB_Prerequisite Question_1
Prerequisite Question for the ISO 52120
3. Reader
P4BB_BB_1
This is the readable paper or comprehensive textual content of the lecture.
4. Video and knowledge clips
P4BB_SRI_Video_Description
This video explains the key points of the legislation