Replace existing installation at a housing corporation
Use a checklist for each property and note deviations from the standard layout. A central design cannot eliminate local differences. Make the documentation transferable so that a subsequent service team does not have to re‑determine which connection or user belongs to the property. For replace existing installation, we first discuss call routing, door release and user access with manager and tenants. We determine which parts are still usable and where replacement is really needed. A strong connection at the front door is more important for ease of use than the resolution on the box. We also consider how calls reach the right user and the door release has been tested together.

