Legionella

What Royal Decree 487/2022 requires

The Spanish rule applies to installations that use water and can produce aerosols, and the first on its list is the hot and cold water system for human use (Annex I). It only excludes buildings used exclusively as homes (Article 3(2)). The holder of the installation, or whoever operates it if they are not the owner, must prevent and control Legionella through a Legionella Prevention and Control Plan (PPCL) or a Legionella Health Plan (PSL) (Articles 5 and 7). Hiring an outside company does not remove that responsibility (Article 5(10)), and records are kept for at least five years (Article 8(5)).

For hot water, Annex IV requires a daily check that storage tanks do not fall below 60 °C and the return circuit below 50 °C, and the whole installation to be inspected, cleaned and disinfected at least once a year. That calendar is part of the residence's preventive maintenance. Although it looks like an industrial inspection, it does not go through an OCA: it is supervised by the health authority, and the analyses are done in a laboratory.