Package of Updated Standards for Refrigeration and Climate Systems Published in November 2026

In early November 2026, a package of new editions and draft technical rules was published in the field of ventilation, air conditioning, climate and refrigeration equipment (HVAC) and building services engineering (TGA). The updates cover operational requirements for refrigeration systems, compressor safety, fire protection, and energy efficiency of cold stores.

Refrigeration Systems and Compressors

• VDMA 24020, part 2 — operational requirements for refrigeration systems using non-flammable refrigerants (A1 safety class per EN 378).
• VDMA 24020, part 4 — operational requirements for CO₂ (R744) systems.
• VDMA 24247, part 3 — energy efficiency of refrigeration systems; guidance on improving energy efficiency in cold stores.
• DIN EN 12693 — refrigeration systems and heat pumps: safety and environmental protection requirements; displacement compressors for refrigerants.

Climate Control and Ventilation

• DIN 1946, part 4, annex 2 — ventilation in healthcare buildings and rooms; involvement of responsible professional groups in design.
• VDI/VDE 3512 — temperature measurements for building automation.

Fire Safety

• DIN EN 1366, part 1 — fire resistance testing of installations; ventilation ducts.
• VdS 2236 — VdS rules on fire protection and security systems; certification procedure for responsible specialists of installation and specialist companies.

The monthly updated overview of the regulatory framework, «Überblick Normenwesen», is available in the cci Wissensportal. Additional information on the technical rules published in November can be found under article number cci334066. A thematically organised table covering more than 350 standards, rules, regulations, and laws in the HVAC and TGA fields is available in the cci Wissensportal under number cci257169; new 2026 publications and more than 130 technical rules with editorial annotations are highlighted in colour (with corresponding article numbers).

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Source: cci Dialog.