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Instruction Manual for SIEMENS models including: RDB160BNU Fan Coil Unit Room Thermostat with BACnet MS TP Communication, RDB160BNU, Fan Coil Unit Room Thermostat with BACnet MS TP Communication, BACnet MS TP Communication
RDB160BNU - alpscontrols.com
Fan Coil Unit Room Thermostat with BACnet MS/TP Communication
File Info : application/pdf, 18 Pages, 415.78KB
DocumentDocumentFan Coil Unit Room Thermostat with BACnet MS/TP Communication
RDB160BNU
The RDB160BNU controls fan coil units with the following features:
HVAC applications: 2-pipe, 2-pipe with electric heater, and 4-pipe Communication: BACnet MS/TP Operating voltage: AC 24 V Fan: 1, 2, 3-speed or DC 0...10 V (automatic or manual) Valve actuators: On/off, 3-position or DC...10 V Electric heater: On/off Built-in temperature sensor Three configurable inputs for external room/return air temperature, supply air
temperature limitation, heating/cooling changeover, window contact, and occupancy sensor.
Operating modes: Comfort, Standby (Economy), OFF, and mold protection Room temperature control: Based on built-in temperature sensor or room/return
air temperature
Heating/cooling changeover: manual, or automatic via water temperature sensor or digital input
Supply air temperature limitation Automatic valve exercise Backlit LCD
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Use Functions
The RDB160BNU is suitable for commercial applications where communication to a building management system is required, such as offices, healthcare, education, retail, shopping malls or other commercial facilities.
Temperature control Built-in temperature sensor or External room/return air temperature
Operating modes Comfort Standby (Economy) OFF mode Mold protection (optional in OFF mode)
Additional functions Heating/cooling changeover
Manual: via thermostat (P02) or BACnet object Automatic: via water temperature sensor or digital input Supply air temperature limitation function
Security functions Lock buttons Lock parameter menu access Block device during fire alarms Valve exercising feature
Energy efficiency functions Setpoint limitation Window state Occupancy
Fan operation Automatic and manual modes Fan operation in dead zone (fan kick) Fan over-run for electric heater
Fan blocking functions Block fan speed control in Auto mode Block fan speed control in Manual mode
BACnet MS/TP communication BACnet MS/TP MAC address: set from 0 to 127. Factory setting is 127. BACnet MS/TP device instance number: set from 0 to 4194302. Factory setting is 0. Baud rate: selectable between 9600, 19200, 38400 and 76800 (default setting) bps.
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Applications
HVAC applications The RDB160BNU can control fan coil units of the following types: 2-pipe system 2-pipe system with electric heater 4-pipe system The applications can be configured using the local parameter menu or via BACnet objects:
HVAC applications
2-pipe fan coil (P01 = 2)
2-pipe fan coil with electric heater
(P01 = 4)
4-pipe fan coil (P01 = 3)
B2
T
YHC
T
(B1)
M1
T
(B1)
YE B2
T
YHC
T
(B1)
M1
T
(B1)
YC YH
T
(B1)
M1
T
(B1)
YHC Heating/cooling valve actuator M1
YH
Heating valve actuator
B1
YC
Cooling valve actuator
B2
YE
Electric heater
Fan
Return air temperature sensor or external room temperature sensor (optional)
Changeover sensor (optional)
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Control applications
The RDB160BNU can control 29 different FCU control applications with up to 2 DC 0...10 V control outputs i.e., the control of a DC fan, DC cooling valve, and DC heating valve is not possible.
2-pipe
Fan
1/2/3-speed DC 0...10 V
Output #1
On/Off, PWM, 3-position, DC 0...10 V
Output #2
N/A
2-pipe with electric heater
4-pipe
1/2/3-speed DC 0...10 V 1/2/3-speed
DC 0...10 V
On/Off, PWM, DC 0...10 V On/Off
On/Off, PWM, DC 0...10 V
On/Off, DC 0...10 V PWM
On/Off, PWM
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Mechanical design The RDB160BNU consists of 3 parts: Mounting plate with screw terminals Plastic housing with electronics, buttons, display, and room temperature sensor Frame
Buttons
1
On/Off
2
Up/down
3
Fan
1
2 3
Display
12
3
12 11 10
9
8
7
1 AUTO/MAN: Automatic or manual mode indication for the fan
4
2 Current fan speed (Low, Medium, High)
5
3 Up/Down buttons to adjust setpoints and parameters
4 Occupancy indication
6 5 Current room temperature or setpoint in °F or °C (one decimal point)
6 Open window
7 COOL/HEAT: Shows the current control mode
8 STANDBY: Economy mode indication
SERVICE: Commissioning mode (setting parameters)
9 OFF: OFF mode
10 Indoor / outdoor temperature
11 Setpoint temperature
12 Fan status
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Type summary
Type
Order number
RDB160BNU S55770-T437
Designation RDB160BNU BACnet FCU Room Thermostat
Equipment combinations
The thermostat can be combined with sensors and actuators with compatible signal types as listed in chapter 'Technical data'.
Product documentation
Topic Installation instructions Commissioning instructions
Document ID: A6V12045441 A6V12045450
The Installation instructions document is available in English, Spanish, and French. It is included with the thermostat in the same packaging box. Related documents such as environmental declarations, CE declarations, etc., can also be downloaded at the following Internet address: www.siemens.com/bt/download The BTL listing can be found at https://www.bacnetinternational.net/btl/.
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Notes Safety
CAUTION
National safety regulations Failure to comply with national safety regulations may result in personal injury and property damage. Observe national provisions and comply with the appropriate safety regulations.
Mounting
The thermostat is suitable for mounting directly on the wall or on a 4" x 4" conduit box (using the ARG70 adapter plate).
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.
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Installation
WARNING
No internal line protection for supply lines to external consumers
Risk of fire and injury due to short-circuits
The AC 24 V mains supply line must have an external circuit breaker with a rated current of no more than 10 A.
Adapt the supply line cable diameters as per local regulations to the rated value of the installed over-current protection device.
Disconnect the thermostat from the power supply before removing it from the mounting plate.
WARNING
Relay outputs (DO1, DO2, DO3, DO4 or UO1) connected to mains voltage Injuries caused by electric shock when touching the device Adapt the relay cable diameters as per local regulations to the rated value of the
installed over-current protection device. Use only valve actuators rated for AC 24 V.
Commissioning
The RDB160BNU thermostat is delivered with pre-programmed control sequences. The relevant application and its parameters can be selected using the buttons on the thermostat. This can be done through:
Setup Wizard: Only appears the first time the thermostat is powered on. It enables rapid system configuration of the most important parameters. For a list of these parameters, please refer to the installation instructions. See chapter 'Product documentation [ 6]'.
Parameter Menu: Available anytime. Used to access and change the complete parameter set. For a list of these parameters, please refer to the commissioning instructions. See chapter 'Product documentation [ 6]'.
Disposal
The symbol with the crossed-out waste container means that electrical and electronic products and batteries may not be disposed of in normal household waste. They must be placed in separate collection and recycling containers according to the applicable laws. Please also refer to any applicable national labelling requirements. Proper disposal helps save valuable resources and prevents potentially harmful effects to people and the environment. Spent batteries and accumulators that can be removed from old devices for disposal, must be removed and placed in the indicated disposal channels. You are responsible for deleting any personal data from old devices for disposal. The registered manufacturers or distributors of electrical and electronic devices have established a common system for returning old devices. Suppliers of electrical devices must accept the returned devices at no charge. You can return old devices to the original sales location or to recycling or collection centers for old electrical devices. Please contact your regional or municipal offices/authorities for information on recycling centers or collection centers for old electrical devices.
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Warranty
Technical data on specific applications are valid only together with Siemens products listed under "Equipment combinations". Siemens rejects any and all warranties in the event that third-party products are used.
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Technical data
General
Operating voltage
AC 18...30 V
Frequency
50...60 Hz
Power consumption
2.5 VA
No internal fuse! External preliminary protection with max. C 10 circuit breaker required in all cases.
Ambient conditions, environmental conditions
Ambient temperature
32...122 °F (0...50 °C)
Storage temperature
-4...+158 °F (-20...+70 °C)
Ambient humidity
Max. 90%
Communication Communication Communication speed
BACnet MS/TP 9600, 19200, 38400 or 76800 bps
Inputs
Analog input (AI1)
PT1000-sensor, 32...122 °F (0...50 °C)
Universal input (UI1)
Analog input: PT1000 sensor, 32...212 °F (0...100 °C)
Digital input: potential-free contact
Digital input (DI1)
Potential free contact
Common ('C') power output (for UI1 and DI1 DC 24 V, max. 10 mA, short circuit-protected only)
Outputs
Digital outputs (Dox)
AC 24 V, max. 0.5 A
Do NOT connect fans in parallel. Connect one fan directly. For additional fans, install one relay for each speed.
Universal outputs (UOx)
Digital output (DO): AC 24 V, max. 2.0 A
Analog output (AO): DC 0...10 V, max. 5 mA
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Operational data Built-in temperature sensor Technology Measuring range Accuracy Setpoint range
NTC linearized 15 k 32...122 °F (0...50 °C) ±0.9 °F (±0.5 °C) at 59...86 °F (15...30 °C) 41...95 °F (5...35 °C)
Standards and directives
UL certificates
UL916 *)
BACnet BTL Listing
BACnet Application Specific Controller (B-ASC)
EU conformity (CE)
See EU declaration of conformity *)
UK conformity (UKCA)
See UK declaration of conformity *)
The product environmental declaration
See product environmental declaration *)
contains data on environmentally compatible
product design and assessments (RoHS
compliance, materials composition,
packaging, environmental benefit, disposal)
General Mounting
Terminal blocks
Display Casing material Color Safety class Net weight
Indoor, wall (directly, or on a 4" x 4" conduit box using the ARG70 adapter plate).
Lift type for max. cable cross-section: 2.1 mm2
Backlit LCD
Polycarbonate, PC
Signal white RAL 9003
IP20
3.88 ounces (110 g)
*) The documents can be downloaded at http://siemens.com/bt/download
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Connection terminals
No. Label
10
G
11
G0
12
DO1
13
DO2
14
DO3
Description
Supply voltage (AC 24 V~) Supply voltage (AC 24 V) Digital Output 1 (AC 24 V, max. 0.5 A): Fan speed low Digital Output 2 (AC 24 V, max. 0.5 A): Fan speed medium Digital Output 3 (AC 24 V, max. 0.5 A): Fan speed high
20
CDO
21
MUO
22
DO4
23
UO1
24
UO2
Common (AC 24 V~) for Digital Outputs: for DOs or UO1 (when configured as DO)
Measuring ground for Universal Outputs (-DC 0...10 V): for UOs (when configured as AOs)
Digital Output 4 (AC 24 V, max. 0.5 A): Electric heater (2-pipe FCU with electric heater) Cooling valve (4-pipe FCU)
Universal Output 1 (AC 24 V, max. 2.0 A or +DC 0...10 V, max. 5 mA): Heating or cooling valve (2-pipe FCU and 2-pipe FCU with
electric heater) Heating valve (4-pipe FCU)
Universal Output 2 (+DC 0...10 V): Fan (all applications with DC fan) Cooling valve (4-pipe FCU with 3-speed fan)
30
AI1
31
UI1
32
DI1
33
M
Analog Input 1 (PT1000 sensor, 32...122 °F (0...50 °C)): External room temperature sensor Supply air temperature sensor
Universal Input 1 (PT1000 sensor, 32...212 °F (0...100 °C) or contact): Change-over temperature sensor or contact Window contact
Digital Input 1 (Contact): Presence detector Window contact
Measuring ground: for AI1 or UI1 (when configured as AI)
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40
C
41
REF
42
-
43
+
Common (DC 24 V): for DI1 and UI1 (when configured as DI) BACnet MS/TP Reference BACnet MS/TP BACnet MS/TP +
Connection diagrams Inputs
External room Supply air temperature temp limitaion
Change-over
BACnet MS/TP
REF 43 42 41
REF
Window Window Occupancy
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Outputs
DC 0...10 V fan G G0 MUO UO2
10 11 21 24
G
L
G0
N
HVAC application 2-pipe
Control application
Heating/cooling valve (V1): On/Off or PWM
Wiring
UO1 CDO
23
20
2-pipe 2-pipe
Heating/cooling valve (V1): 3-position UO1 = Open DO4 = Close
UO1 DO4 CDO 23 22 20
Open
Close
Heating/cooling valve (V1): DC 0...10 V
UO1 MUO
23
21
2-pipe with electric heater
Heating/cooling valve (V1): On/Off or PWM
Electric heater (V2): On/Off
UO1 DO4 CDO
23
22 20
V2
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2-pipe with electric heater
Heating/cooling valve (V1): DC 0...10 V
Electric heater (V2): On/Off
UO1 MUO DO4 CDO 23 21 22 20
V2
4-pipe
Heating valve (V1): On/Off or PWM
Cooling valve (V2): On/Off or PWM
UO1 DO4 CDO
23
22 20
V2
4-pipe
Heating valve (V1): DC 0...10 V
Cooling valve (V2): On/Off or PWM
UO1 MUO DO4 CDO 23 21 22 20
V2
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3-/2-1-speed fan G G0 DO1 DO2 DO3 CDO
10 11 12 13 14 20
G G0
HVAC application 2-pipe
Control application
Heating/cooling valve (V1): On/Off or PWM
Wiring
UO1 CDO
23
20
2-pipe 2-pipe
Heating/cooling valve (V1): 3-position UO1 = Open DO4 = Close
UO1 DO4 CDO 23 22 20
Open
Close
Heating/cooling valve (V1): DC 0...10 V
UO1 MUO
23
21
2-pipe with electric heater
Heating/cooling valve (V1): On/Off or PWM
Electric heater (V2): On/Off
UO1 DO4 CDO
23
22 20
V2
2-pipe with electric heater
Heating/cooling valve (V1): DC 0...10 V
Electric heater (V2): On/Off
UO1 MUO DO4 CDO 23 21 22 20
V2
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4-pipe 4-pipe 4-pipe 4-pipe
Heating valve (V1): On/Off or PWM
Cooling valve (V2): On/Off or PWM
Heating valve (V1): DC 0...10 V
Cooling valve (V2): On/Off or PWM
Heating valve (V1): On/Off or PWM
Cooling valve (V2): DC 0...10 V
Heating valve (V1): DC 0...10 V
Cooling valve (V2): DC 0...10 V
UO1 DO4 CDO
23
22 20
V2
UO1 MUO DO4 CDO 23 21 22 20
V2
UO1 CDO UO2 MUO 23 20 24 21
V1
V2
UO1 MUO UO2 23 21 24
V2
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Dimensions
95 mm (3.74")
95 mm (3.74")
10 11 12 13 14
UP
20 21 22 23 24
UP
30 31 32 33
40 41 42 43
60 mm (2.36") 68 mm (2.68")
All dimensions in mm
60 mm (2.36") 68 mm (2.68")
28 mm (1.10")
Issued by Siemens Switzerland Ltd Smart Infrastructure Global Headquarters Theilerstrasse 1a CH-6300 Zug +41 58 724 2424 www.siemens.com/buildingtechnologies
Document ID Edition
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© Siemens Switzerland Ltd, 2022 Technical specifications and availability subject to change without notice.