Switching contacts, sensors, plug-in modules, interfaces

For electrical connection of the accessory components, see wiring diagrams in the appendix.

E-SM EnOcean plug-in module (optional)

Connection of EnOcean wireless components.

K-SM KNX plug-in module (optional)

Connection to a KNX bus system.

Modbus interface (optional)

Modbus interface (TCP/IP and RTU) integrated in the ventilation unit, enables integration in the building control system. Parameterisation with the commissioning software. Only selectable if no RLS T2 WS touchscreen control unit is connected. Up to 5 RLS 1 WR are permissible as secondary control units.

WS 120 Trio multifunction contact

Potential-free switching contact for connecting one of the following components: Alarm indicator, filter change indicator, operating display, PTC heat register.

External sensors (optional)

Humidity sensor, CO2 sensor or VOC sensor. External sensors require a 0-10 V output and a linear characteristic curve. Standard connection of sensor 1 and 2 at terminal block X12/sensors at 24 VDC.
If no single control unit is connected, the connections on terminal block X13/RLS can be used for 2 additional sensors (sensor 3 and 4, each 12 VDC). For a 24 VDC power supply to sensors 3 and 4, the voltage can be tapped at the terminals of sensors 1 and 2 (double assignment).

Home network (Loxone) to Modbus

Loxone building control system can be connected to the Modbus (TCP/IP and RTU) integrated in the ventilation unit. Parameterisation with the commissioning software. Only selectable if no RLS T2 WS touchscreen control unit is connected. Up to 5 RLS 1 WR are permissible as secondary control units. For electrical connection → wiring diagrams.