Siemens RDS120-B User manual

Smart Thermostat
RDS120-B
Commissioning Guide
A6V11727391
06/20/19
Smart Infrastructure

Siemens Industry, Inc.
A6V11727391
Smart Infrastructure
06/20/19
Table of Contents
1 Summary ........................................................................................................ 3
1.1 Brief description ................................................................................................................ 3
1.2 Inbox items.......................................................................................................................... 3
1.3 Associated Equipment .................................................................................................... 3
2 Installation ..................................................................................................... 6
3 Setup wizard ................................................................................................ 10
4 Presence detection ..................................................................................... 11
4.1 Presence detection using the built-in PIR sensor ...............................................11
4.2 Approach detection .......................................................................................................12
5 Changing system setup.............................................................................. 14
6 Managing application settings ................................................................. 17
7 Disassembly ................................................................................................. 27
8 Appendices .................................................................................................. 28
8.1 Technical specifications................................................................................................28
8.2 Cyber security disclaimer .............................................................................................28
8.3 Regulatory information ................................................................................................28
8.3.1 ISED Regulations (Canada) ........................................................................28
8.3.2 FCC Regulations (USA)................................................................................29
8.4 EULA ....................................................................................................................................29

Summary
Brief description
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1Summary
1.1 Brief description
Smart Thermostat RDS120 is designed to control the heating/cooling system in
apartments, single family homes, dormitories and other residential-type as well
as light commercial spaces. Apart from traditional operations performed directly
on the hardware unit, remote operations that use a mobile app are also allowed
for your convenience.
1.2 Inbox items
Items
Quantity
Thermostat (front and rear)
1
Metal mounting plates (small & large)
2
Plastic frame
1
Set of screws and drywall anchors
1
Quick guide
1
Mounting instructions
1
Wiring decals
1
Activation code decal
1
1.3 Associated Equipment
Remote sensors
Sensor Type
Model Number
1k Ohm
at 32°F
Ni R
1k
Ohm Pt
RTD
Type 2
Thermistor
0-10 Vdc
Datasheet*
Room Temperature Sensors
- Wall-
mount
QAA2220.EWSN
x
149-714
QAA2212.EWSN
x
149-714
QAA2230.EWSN
x
149-714
QAA22SS.EWSN
x
149-714
- Flush-
mount1)
540-984
(Metal)
x
149-956
536-994A
(Beige)
x
149-956
536-994B
(White)
x
149-956

Summary
Associated Equipment
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Sensor Type
Model Number
1k Ohm
at 32°F
Ni R
1k
Ohm Pt
RTD
Type 2
Thermistor
0-10 Vdc
Datasheet*
- Duct-
mount
QAM2030.010
(4”)
x
149-915
Outdoor Temperature Sensors
QAC22
x
149-920
QAC2012
x
149-920
QAC2030
x
149-920
QAC3161
x
149-920
Cable Temperature Sensors
QAP22
x
149-918
QAP2012.150
x
149-918
QAP1030.200
x
149-918
Room Humidity Sensors
- Wall-
mount with
temperature
QFA3212.EWSN
x(T)
x (r.h.)
149-714
QFA32SS.EWSN
x (T+r.h.)
149-714
- Duct-
mount with
temperature
QFM2160U
x (T+r.h.)
149-991
Indoor Air Quality Sensors
- CO2
QPA2000
x
149-910
- VOC + CO2
QPA2002
x
149-910
QPA2002D1)
x
149-910
- CO2with
temperature
QPA2060
x(CO2+T)
149-910
QPA2060D1)
x(CO2+T)
149-910
- Duct-
mount CO2
QPM2100
x
149-909
- Duct-
mount VOC
+ CO2
QPM2102
x
149-909
- Duct-
mount CO2
with
temperature
QPM2160
x(CO2+T)
149-909
* The documents can be downloaded from Siemens US Download Center by specifying
the product number as shown in the above table.
1) With digital display

Summary
Associated Equipment
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Replacement Part
Description
Model
Number
Orderable Part
Number
Plastic trim plate and metal
mounting plate for 2" ×4"
box (1 set)
ARG100.01
S55772-T102

Installation
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2Installation
●The thermostat is designed for wall mounting.
●The recommended height is 5 feet above the floor.
●Do not mount the thermostat in recesses, shelves, behind curtains or doors,
or above or near heat sources.
●Avoid direct exposure to sun and drafts.
●Seal the conduit and/or wall opening, as drafts can affect sensor readings.
●Observe maximum ambient conditions.
1. Switch off power to the heating/cooling system at the breaker or system
power switch.
2. Remove the old thermostat from the wall with wires still connected.
3. Using the provided wire decals , label the existing wire connections. It is also
helpful to take a picture of the current wire connections for subsequent
reference.
Mounting
Installing the
thermostat

Installation
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4. Disconnect all the labeled wires and then remove the old thermostat.
NOTICE! Do not discard the old thermostat in the trash if it contains
mercury. Contact a thermostat recycling organization, for example,
www.thermostat-recycle.org, for safe disposal of the old thermostat.
5. Check whether more wires are needed to bring 24 Vac power from the
HVAC equipment to the thermostat. If yes, prepare the wires and label them
accordingly.
6. Seal the conduit and/or wall opening to prevent entrance of cold or warm
air and ensure accurate temperature readings by the internal sensor.
7. Install the mounting plate and power unit.
–If you are mounting the thermostat directly on a wall, screw the small
mounting plate enclosed with the thermostat snugly on the wall using a
screwdriver, making sure that the mounting plate is placed correctly (the
part with the upward arrow is placed on the top), and then screw the
power unit on the mounting plate.
–If you are mounting the thermostat on a conduit box, install the metal
mounting plate enclosed with the thermostat tightly on the conduit box
(making sure that the upward arrow part is placed on the top), attach the
plastic trim plate to the mounting plate, and secure by screws.

Installation
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Tip: Before installing the power unit, it is highly recommended the
labeled wires be connected to the terminals snugly according to the
thermostat terminal designations (you may also refer to the picture taken
in Step3). Do not overtighten.
NOTICE! a) The following illustration is for reference, which may be
different from the wiring for your application. b) The thermostat only
works with low-voltage wires (AC 24 V), so it is very important to
make sure that the thermostat is not connected to high-voltage
wires.
8. Attach the front module horizontally, making sure that each side of the front
module fully aligns with that of the power unit, and then press the corners
following the order described in the following illustration until you hear a
click sound. Note that you need to discharge the static electricity on your
body before mounting the front module. For example, touching the wall
could help on Electro-Static discharge (ESD).
9. Switch on power to the heating/cooling system. The thermostat should be
powered up as well.
See Mounting instructions for more information.
Wiring

Installation
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●Observe local codes regarding wire type, overcurrent protection and ground.
●For HVAC systems with a single transformer, the RH-RC jumper must remain
in place. If separate transformers are used for heating and cooling systems,
remove the RH-RC jumper.
●24 Vac supply line must have a circuit breaker with a rated current of no
more than 4 A. The total current rating should not exceed 3.3 A. For 24 Vac
US installations, use Class 2 transformers.
●Disconnect from power supply before removing the front module and the
mounting plate.

Setup wizard
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3Setup wizard
When the thermostat is powered up for the first time, a setup wizard displays to
guide you through the following procedures:
●Setting a display language
●Setting an administrator password
●Setting up a network connection and choosing the network connection type
●Selecting an equipment type and setting up the details
●Configuring date
●Specifying a name to the location where the thermostat is installed
For more details, see the Quick guide.