Room thermostat with BACnet MS/TP communication RDB160BN For fan coil and universal applications ● ● ● ● ● ● ● ● ● ● ● ● ● A6V11913047_en--_b 2020-03-10 For 2-pipe, 2-pipe with electric heater, and 4-pipe applications BACnet MS/TP bus communication Built-in temperature sensor Outputs for On/Off, PWM, 3-position or DC 0...10 V control Outputs for 3-speed, 2-speed, 1-speed or DC 0...10 V fan Three multifunctional inputs for keycard contact, external sensor, etc.
Use The RDB160BN BACnet MS/TP room thermostats are used for the following types of system: ● Fan coils with On/Off, modulating or DC control outputs (electric heater only with On/Off output): – 2-pipe system – 2-pipe system with electric heater – 4-pipe system ● Chilled/heated ceilings (or radiators) with On/Off, modulating or DC control outputs (electric heater only with On/Off output): – Chilled/heated ceiling – Chilled/heated ceiling with electric heater – Chilled ceiling with radiator The RDB160BN contr
Inputs ● One analog input for: – External room temperature or return air temperature sensor – Supply air temperature limitation sensor ● One universal input for: – Changeover digital – Changeover analog – Window contact ● One digital input – Presence input – Window contact BACnet MS/TP communication Device address The BACnet MS/TP MAC address can be set from 0 to 127. Factory setting is from 0 to 99. Baud rate The baud rate is selectable.
YHC Heating/cooling valve actuator M1 1-speed, 2-speed or 3-speed fan YH Heating valve actuator B1 Return air temperature sensor or external room temperature sensor (optional) YC Cooling valve actuator B2 Changeover sensor (optional) YE Electric heater Possible output combinations 2-pipe Fan 1/2/3-speed DC 0…10 V 2-pipe with electric heater 1/2/3-speed 4-pipe DC 0…10 V 1/2/3-speed DC 0…10 V On/Off, PWM, DC 0…10 V On/Off, DC 0…10 V PWM Output #1 On/Off, PWM, 3-position, DC 0…10 V On
Display The display has the following indications: 1 3 2 12 1 ˈAUTO/MANˈ: Automatic or manual mode indication for the fan 2 Current fan speed (Low, Medium, High) 3 Up/Down buttons to adjust setpoints and parameters 4 Occupancy indication 5 Current room temperature or setpoint in °C to one decimal point 6 Open window 7 ˈCOOL/HEATˈ: Shows the current control mode of the thermostat. 8 ˈSTANDBYˈ: Economy mode indication.
On/Off and PWM actuators1) Type of unit Product no. Datasheet*) Thermal actuator AC 230 V (for small valves 2.5 mm), NC STP23.. 1) N4884 Type of unit Product no. Datasheet*) Electromotive actuator, 3-position (for radiator valves) SSA31.. N4893 Electromotive actuator, 3-position (for 2- and 3-port valves/V..P45) SSC31 N4895 Electromotive actuator, 3-position (for small valves 2.5 mm) SSP31.. N4864 Electromotive actuator, 3-position (for small valves 5.5 mm) SSB31..
Type of unit Product no. Datasheet*) Electrothermal actuator, AC 24 V, NC, DC 0…10 V, 1 m STA63.. N4884 Electrothermal actuator, AC 24 V, NO, DC 0…10 V, 1 m STP63.. N4884 Rotary actuators for ball valves AC 24 V, DC 0…10 V GDB161.9E N4657 *) The documents can be downloaded at http://siemens.com/bt/download With PWM control, it is not possible to ensure exact parallel running of two or more thermal actuators.
Mounting ● ● ● ● ● ● The devices are suitable for wall mounting. Recommended height: 1.5 m above the floor. Do not mount the devices in recesses, shelves, behind curtains or doors, or above or near heat sources. Avoid direct solar radiation and drafts. Seal the conduit box or the installation tube if any, as air currents can affect sensor readings. Adhere to allowed ambient conditions. Wiring ● Comply with local regulations to wire, protect and earth the thermostat.
Commissioning Applications and settings The BACnet MS/TP room thermostats are delivered with a fixed set of applications and related parameters. The factory settings can be changed by using the display and buttons on the controller. The INCREASE and DECREASE buttons change the parameter values: the changes are confirmed with the On/Off button. Wizard setting The first time the RDB160BN is powered on, a wizard is available to easily set the device.
Disposal The device is considered an electronic device for disposal in accordance with the European Guidelines and may not be disposed of as domestic garbage. ● Dispose of the device through channels provided for this purpose. ● Comply with all local and currently applicable laws and regulations. Warranty Technical data on specific applications are valid only together with Siemens products listed under "Equipment combinations".
Technical data General Operating voltage 230 V AC ±10 % Frequency 50/60 Hz Power consumption 3 W, class II construction Built-in temperature sensor NTC type, measuring range 0...50 °C Terminal blocks Lift type for max. cable area 2.1 mm2 No internal fuse! External preliminary protection with max. C 10 circuit breaker required in all cases. Ambient conditions, environmental conditions Ambient temperature 0...50 °C Storage temperature -20...+70 °C Ambient humidity Max. 90% r.h.
Outputs Control outputs Solid state (triacs) DO4-N, DO5-N AC 230 V DOx power limitation 8…300 mA 3 A fast microfuse, cannot be exchanged Operational data Switching differential, adjustable Heating/cooling mode (P10) 1 K (0.
Connection terminals L D1 UI AI SELV N 10, 12, 13 L, N N DO4 C DO5 DO1 Operating voltage AC 230 V DO2 DO3 40 DI Digital input 41 M Ground 20 DO1 Control output fan speed I AC 230 V 42 AI Analog input 21 DO2 Control output fan speed II AC 230 V 43 UI Universal input 22 DO3 Control output fan speed III AC 230 V 44 M Ground for SELV 31 DO4 Control outputs 'Valve' AC 230 V 51 AO1 Control outputs DC 0…10 V 32 C Ground for DO4 DO5 50 M 33 DO5 Control outputs Valv
Connection diagrams DC 0…10 V fan 10 A Application L AC 230 V S3 2-pipe / heating or cooling – On/Off or PWM L B1 S1 T T B2 D1 UI AI SELV N C N DO4 DO5 DO1 DO2 N1 DO3 V1 M1 AC 24 V N G0 G 10 A AO1 2-pipe / heating or cooling – DC valve M Y M G0 G AC 24 V V1 2-pipe / heating or cooling – 3-position ● DO4 = Open ● DO5 = Close 2-pipe with el. heater / heating or cooling – On/Off or PWM and el.
3-speed fan 10 A Application L AC 230 V S3 S1 T T B2 D1 L UI AI SELV N 2-pipe / heating or cooling – On/Off or PWM B1 N DO4 C DO5 DO1 DO2 V1 N1 DO3 M1 AC 24 V N G0 G 10 A AO1 2-pipe / heating or cooling – DC valve M Y M G0 G AC 24 V V1 2-pipe / heating or cooling – 3-position ● DO4 = Open ● DO5 = Close 2-pipe with el. heater / heating or cooling – On/Off or PWM and el. heater 230 V D04 G0 G 10 A D05 C V1 230 V D04 C D05 L V1 N E1 230 V C 2-pipe with el.
Dimensions 102 120 29 All dimensions in mm Issued by Siemens Switzerland Ltd Smart Infrastructure Global Headquarters Theilerstrasse 1a CH-6300 Zug Tel. +41 58 724 2424 www.siemens.com/buildingtechnologies 16 Smart Infrastructure Document ID A6V11913047_en--_b Edition 2020-03-10 © Siemens Switzerland Ltd, 2020 Technical specifications and availability subject to change without notice.
