Technical data

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Siemens RDG400KN Room thermostat with KNX communications CE1N3192en
Building Technologies 01 Jun 2010
Mounting and installation
Do not mount on a wall in niches or bookshelves, behind curtains, above or near
heat sources, or exposed to direct solar radiation. Mount about 1.5 m above the
floor.
Mounting
 Mount the room thermostat on a clean, dry indoor place without direct airflow
from a heating / cooling device, and not exposed to drips or splash water.
Wiring
See the mounting instructions M3192 enclosed with the thermostat.
 Comply with local regulations to wire, fuse and earth the thermostat.
 The power supply line must have an external fuse or circuit breaker with a rated
current of no more than 10 A.
 Isolate the cables of inputs X1-M, U1-G0 and D1-GND for 230 V if the conduit
box carries AC 230 V mains voltage.
 Inputs X1-M or D1-GND: Several switches (e.g. summer/winter switch) may be
connected in parallel. Consider overall maximum contact sensing current for
switch rating.
 Isolate the cables of KNX communication input CE+ / CE- for 230 V if the conduit
box carries AC 230 V mains voltage.
 No cables provided with a metal sheath.
 Disconnect from supply before removing from the mounting plate.
Commissioning notes
The room thermostat is delivered with a fixed set of applications.
Select and activate the relevant application during commissioning using one of the
following tools:
 Local DIP switch and HMI
 Synco ACS
 ETS3 Professional (planned)
Set the DIP switches before snapping the thermostat to the mounting plate, If you
want to select an application via DIP switches,.
All DIP switches need to be set to “OFF” ("remote configuration"), if you want to
select an application via commissioning tool.
Applications