The 2020 update introduced several critical changes to align with modern heat pump technology and hygiene research:
Anlagen für Trinkwarmwasser in Gebäuden – 130.00 CHF sia 385/1 download
The standard is the essential Swiss technical guideline for the design and operation of domestic hot water (DHW) systems in buildings . It focuses on balancing energy efficiency, user comfort, and hygiene, specifically addressing the prevention of Legionella. Official Sources for SIA 385/1 Download The 2020 update introduced several critical changes to
Installations d’eau chaude sanitaire dans les bâtiments – 100.00 CHF including those powered by heat pumps.
Impianti per l’acqua calda sanitaria negli edifici – 130.00 CHF Key Requirements of the 2020 Revision
A minimum temperature of 55°C must now be maintained throughout all hot water supply systems, including those powered by heat pumps.