Technical data

4. Handling
4.1 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 in a clean, dry indoor place without direct airflow
from a heating / cooling device, and not exposed to dripping or splash water.
Wiring
See Mounting Instructions M3191 [3] enclosed with the thermostat.
Comply with local regulations to wire, protection and earth the thermostat.
The device has no internal fuse for supply lines to fan and actuators. To avoid
risk of fire and injury due to short-circuits, the AC 230 V mains supply line must
have a circuit breaker with a rated current of no more than 10 A.
Properly size the cables to the thermostat, fan and valve actuators for AC 230
V mains voltage.
Use only valve actuators rated for AC 230 V.
The wiring cross section used for power supply (L, N), fan (Q1, Q2, Q3, N) and
230 V outputs (Yx - N) must be adapted to the preceding overload protection
elements (10A) under all circumstances. Comply under all circumstances with
local regulations.
Isolate the cables of input D1-GND for 230 V if the conduit box carries
AC 230 V mains voltage.
Inputs X1-M, X2-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.
Inputs X1-M and X2-M carry mains potential (RDG100KN only).
Sensor cables must be suited for AC 230 V mains voltage.
Selectable relay function (RDG160KN): see section 3.14.4.
Isolate the cables of KNX communication input CE+ / CE- for AC 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.
When a KNX bus power supply is connected on the line with communicating
thermostats and Synco controller, the internal KNX power supply of the Synco
controllers must be switched off.
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Siemens RDG100KN, RDG160KN Basic documentation CE1P3191en
Building Technologies Handling 2014-05-23