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Siemens
RDU341 Basic Documentation
CE1P3172en
Building Technologies
2015-06-08
2. Summary
2.1 Types
Product number
Stock number
Operating voltage
Control outputs
H
o
u
s
in
g
c
o
lo
r
3 pos
ON/OFF DC
0..10
V
RDU341
S55770-T106
AC 24 V
--
ü
ü
white
2.2 Ordering
·
When ordering, please indicate both product no. / stock no. and name:
E.g.
RDU341 / S55770-T106 room thermostat
·
Order valve actuators separately
2.3 Functions
VAV systems
via ON/OFF or modulating control outputs:
·
Single-duct system
·
Single-duct system with electric heater
The room thermostats are delivered with a fixed set of applications.
The relevant application is selected and activated during commissioning using one
of the following tools:
·
Synco ACS
·
ETS
·
Local DIP switch and HMI
·
Operating modes: Comfort, Economy (Energy Saving) and Protection
·
Outputs for DC 0…10 V actuator and AC 230V electric heater (ON-OFF)
·
Automatic or manual heating / cooling changeover
·
Backlit display
·
AC 24 V operating voltage
·
Room temperature control via built-in temperature sensor or external room
temperature / return air temperature sensor
·
Changeover between heating and cooling mode (automatic via local sensor or
bus, or manually)
·
Selection of applications via DIP switches or commissioning tool (ACS700)
·
Select operating mode via operating mode button on the thermostat
·
Temporary Comfort mode extension
·
Display of current room temperature or setpoint in °C and/or °F
·
Display of outdoor temperature or time of day via KNX bus
·
Minimum and maximum limitation of room temperature setpoint
·
Minimum and maximum limitation of air flow signal DC 0...10 V
·
Button lock (automatically or manually)
·
2 multifunctional inputs, freely selectable for:
– Operating mode switchover contact (keycard, window contact, etc.)
– Sensor for automatic heating / cooling changeover
– External room temperature or return air temperature sensor
Use
Feat
u
res
Functions
