Staefa Control System

Historical background

Staefa Control System was a recognised supplier of HVAC controls and building management systems. The company was associated with the Swiss Electrowatt group and later became part of Landis & Staefa.

From Staefa to Siemens

Landis & Staefa was formed in the 1990s and later became associated with Siemens Building Technologies. This history is relevant because many installed systems still contain older control products.

Magnetic valves and service

The archived article also links Staefa history to magnetic valve technology. For exact product specifications and historical dates, consult original product catalogues rather than relying on a short retrospective account.

Why this history still matters

Long-lived facilities can contain Staefa and Landis & Staefa controllers, valve actuators or related peripheral equipment. Maintenance may require identifying the exact installed generation rather than choosing a replacement solely by a familiar model name.

Archived company material describes Staefa's association with Electrowatt, the combination with Landis & Gyr in 1996 and the later Siemens Building Technologies period. These dates describe corporate history; individual product introductions and patents should be checked against original technical documents.

For the technical lineage, see magnetic modulating valves.