Data Sheet for Product

11 / 12

Siemens RXL39.1 – Room controller CM2N3876en_10

Building Technologies 2015-12-23

Connection diagrams

N1 RXL39.1

B1, B2 LG-Ni 1000 temperature sensor

D1 … D4 Volt-free contacts (window contact, occupancy sensor, etc.)

Y1 0 … 10 V valve actuator heating

Y2 0 … 10 V valve actuator cooling (heating / cooling in case of changeover)

Q1 Controlled fan

Q2 Power controller (PWM or modulating)

e.g. SEM61.4 + SEA45.1, data sheets N5102, N4937

Q3 Electric heating

B3 QAX… room unit

Twisted pair

STOP

Note!

For Q2 (1.8 kW max. resistive load), use additional external fuses of max.

10 A to protect the PCB tracks.

For information on the compatibility of field devices with the RXL39.1 room

controller, refer to the RX hardware overview, CA2N3804.

Connection of

field devices, room

unit, bus and power

supply

Note