Recommended Procedure for Creating Extensive ZigBee Network Systems for Siemens Connected Home Smart Heating System

Limits of the Siemens Connected Home System

Number of rooms per household: max. 40
Number of users per household: max. 50
Number of households per account: max. 50
Number of devices per room: max. 40
Number of devices per switching unit (in repeater function): max. 8 (from FW version 20007)
Number of signal repeaters in series from a Zigbee router: max. 3

Installation of an Extensive Zigbee Network System

When installing the system and creating a ZigBee network, we recommend the following steps to ensure its stability:

1. Install devices in the building:
   • Mount switching units / signal repeaters: approximately one every 15 meters, and/or at least one per floor.
   • Install SSA911.02ZB actuators on radiator valves.
2. Start connecting devices:

• Turn on and connect switching units, starting from the closest to the ZigBee router to the farthest.

• Turn on the power and connect radiator actuators and thermostats, starting from the farthest from the ZigBee router to the closest.

If the end device does not connect to the ZigBee router in the mobile app, it may be necessary to add another switching unit between the device and the ZigBee router to function as a signal repeater.

Example of a Siemens Connected Home Smart Heating System Design

Note: The maximum signal range is measured in an internal open space.

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