Siemens Desigo RXC21.5 User Manual

CA2N3834en_09
2013-06-16
Building Technologies
s
3
834
Desigo™ RXC
Room controllers
RXC20.1 / RXC20.5
RXC21.1 / RXC21.5
RXC22.1 / RXC22.5
For fan-coil systems, chilled ceilings and radiators
with L
ONMARK® compatible bus communications
The RXC20, RXC21 and RXC22 room controllers are used for temperature control
in individual rooms.
 For 2-pipe or 4-pipe fan-coil systems, with or without change-over
 For chilled ceilings and radiators
 Control of AC 24 V PDM
1)
thermic valve actuators, 3-position AC 24 V valve
and damper actuators, or electric heating coils
 Volt-free relay contacts for fan control and electric heating coils
 PI or PID control (depending on application)
 Downloadable application software
 L
ONMARK® compatible bus communications
 For use in the Desigo building automation and control system
 AC 230 V operating voltage
1) PDM = pulse/duration modulated

Siemens Desigo RXC21.5 Specifications

General

Brand	Siemens
Model	Desigo RXC21.5
Category	Controller
Language	English

Summary

Functions

Types

Connection terminals

Communication

LONWORKS® bus and PPS2

Explains wiring of LONWORKS bus and PPS2 interface with room units and tools.

Mounting instructions

Commissioning notes

Technical data

Power supply

Details operating voltage, rated voltage, frequency and power consumption.

Inputs

Outputs

Interfaces

Cable connections

Connection diagrams

Parallel connection of several thermic actuators