The SN EN 378-1+A1:2021 standard outlines safety and environmental requirements for refrigerating systems and heat pumps, published by CEN (European Committee for Standardization). This standard applies to the design, installation, operation, and maintenance of these systems, ensuring compliance with safety and environmental regulations.

Purpose and objectives

The primary aim of EN 378-1+A1:2021 is to establish a framework for ensuring the safety and environmental integrity of refrigerating systems and heat pumps. The standard provides essential guidelines to mitigate risks associated with refrigerants, promoting safe operation and reducing environmental impact. By setting clear requirements for system design and operation, the standard enhances the reliability of refrigerating systems in various applications, thereby protecting both users and the environment.

Scope: who must comply

EN 378-1+A1:2021 applies to a wide range of stakeholders, including manufacturers, installers, and operators of refrigerating systems and heat pumps. Industries that typically must comply include:

• Refrigeration: Supermarkets, cold storage facilities, and food processing.
• HVAC: Heating, ventilation, and air conditioning applications.
• Industrial: Processes requiring temperature control.

Compliance is essential for companies aiming to meet regulatory mandates, particularly within the Energy & Heat Transfer context, where efficient and safe operation is paramount.

How SN EN 378-1+A1:2021 relates to other standards

EN 378-1+A1:2021 complements several other standards, including:

• ISO 13043: Provides guidelines on the classification of refrigerants.
• F-gas Regulation: Addresses the environmental impacts of fluorinated gases used in refrigerating systems.
• SIA 382/1: Offers additional safety requirements for refrigerating systems in Switzerland.

These standards collectively enhance the framework for safe and environmentally friendly refrigerating practices.

Revision history and current status

The SN EN 378-1+A1:2021 was published by CEN in 2021, with the current revision reflecting updates from its predecessors to improve safety measures and align with new environmental regulations. Key changes in this revision include enhanced safety requirements for specific refrigerants and more comprehensive guidelines for maintenance and operation procedures.