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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
Housing
color
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
Features
Functions
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