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Planning · SIA 21-61

Building Automation

We plan and develop advanced building automation: intelligent systems with seamless integration between the trades and efficient operation.

From a single automation station to a networked site, we plan independently of any system supplier: from the field level to the management system, across all project phases in accordance with SIA 21-61. Standardised and template-based, so every document stays consistent and changes in the HVAC, plumbing and electrical (HLKSE) design are reliably carried through.

What is included

  • Data point list
  • BA topology concept
  • Building automation requirements specification
  • Function list & control description
  • Interface specification HVAC, plumbing and electrical (HLKSE)
  • BACnet concept
  • Field device plan
  • Alarm, operating & visualisation concept

Planned independently of any system supplier: you remain free in your choice and future expansion.

Frequently asked questions

Which SIA phases does GEA cover in building automation planning?

We support projects across phases SIA 21 to 61: from preliminary studies through design (phases 31 to 33) and tendering (phase 41) to realisation (phases 51 to 53) and operation (phase 61). The scope depends on the selected planning module.

Which documents does GEA produce in building automation planning?

The core is the data point list as the leading data source. On this basis we build the building automation concept and system description, topology and schematic diagrams, the function list and control description, the interface specification HVAC, plumbing and electrical (HLKSE) as well as the service description and bill of quantities for tendering. We also derive alarm and field device lists from the data point list, so all documents stay consistent.

Which labelling system is used to code plants and data points?

The building owner's labelling system takes precedence, for example based on the KBOB recommendation or in-house guidelines. If none exists, GEA brings its own proven labelling concept.

Which documents from the specialist planners can you work with?

PDF, Excel, Word, Visio and DWG documents from the HVAC, plumbing and electrical (HLKSE) planners are common. On this basis we produce a consistent and traceable building automation design; for BIM projects we agree the approach for each project.

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