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