Siemens POS8.4420/109 User manual

POS8.4420/109; POS8.4440/109
Room operator units
Basic Documentation
A6V11471220_en--_a
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Smart Infrastructure

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Table of Contents
1 About this document....................................................................................3
1.1 Revision history ...............................................................................................3
1.2 Before you start ...............................................................................................3
1.3 Reference documents .....................................................................................4
2 Product overview.........................................................................................5
2.1 Type summary.................................................................................................5
2.2 Features ..........................................................................................................5
2.3 System topology..............................................................................................6
2.4 Mechanical design...........................................................................................7
2.5 Diagrams .........................................................................................................7
2.6 Dimensions......................................................................................................9
3 Important information on safety and disposal .............................................10
3.1 General regulations .......................................................................................10
3.2 Device-specific regulations............................................................................10
3.3 Notes on EMC optimization...........................................................................10
3.4 Disposal.........................................................................................................11
4 Mounting and installation ...........................................................................12
4.1 Preparation....................................................................................................12
4.2 Mounting instructions ....................................................................................13
5 Commissioning..........................................................................................15
5.1 Programming pin and service LED ...............................................................15
6 Technical data ...........................................................................................17
7 Functions...................................................................................................19
8 Operation ..................................................................................................21
8.1 Ventilation page.............................................................................................21
8.2 Temperature page.........................................................................................22
8.3 Domestic hot water page...............................................................................23
8.4 Notification page............................................................................................24
8.5 Clock page ....................................................................................................28
8.6 Scheduler settings.........................................................................................28
8.7 Standard and expert settings ........................................................................29
8.8 Standby page ................................................................................................30
9 Appendix ...................................................................................................31
9.1 Parameters....................................................................................................31

About this document
Revision history
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1About this document
1.1 Revision history
Revision
Date
Changes
Section
a
November, 2018
First edition
All
1.2 Before you start
The table below lists the third-party trademarks used in this document and their
legal owners. The use of trademarks is subject to international and domestic
provisions of the law.
Trademarks
Legal owner
KNX®
KNX Association, B - 1831 Brussels-Diegem Belgium
http://www.knx.org/
All product names listed in the table are registered (®) or not registered (™)
trademarks of the owner listed in the table. We forgo the labeling (e.g. using the
symbols ® and ™) of trademarks for the purposes of legibility based on the
reference in this section.
This document may be duplicated and distributed only with the express permission
of Siemens, and may be passed on only to authorized persons or companies with
the required technical knowledge.
These documents were prepared with great care.
●The contents of all documents are checked at regular intervals.
●All necessary corrections are included in subsequent versions.
●Documents are automatically amended as a consequence of modifications and
corrections to the products described.
Please make sure that you are aware of the latest document revision date.
If you find any lack of clarity while using this document, or if you have any criticisms
or suggestions, please contact the nearest branch office. Addresses for Siemens
regional companies are available at www.siemens.com/sbt.
Before using our products, it is important that you read the documents supplied
with or ordered at the same time as the products (equipment, applications, tools
etc.) carefully and in full.
We assume that persons using our products and documents are authorized and
properly trained and have the requisite technical knowledge to use our products as
intended.
Additional information on products and applications is available:
●On the intranet (for Siemens employees only) at
https://workspace.sbt.siemens.com/content/00001123/default.aspx
●At your next Siemens branch office www.siemens.com/sbt or at your system
suppliers.
●From the support team in the headquarters fieldsupport-
[email protected]om if no local contact is available.
Siemens assumes no liability to the extent allowed under the law for any losses
resulting from a failure to comply with the aforementioned points or for the
improper compliance of the same.
Trademarks
Copyright
Quality assurance
Document use/ request to
the reader

About this document
Reference documents
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1.3 Reference documents
Ref.
Document title
Document number
[1]
Data sheet
A6V11519429
[2]
Mounting instructions
A6V10733764

Product overview
Type summary
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2Product overview
2.1 Type summary
Product number
Stock number
Feature
LCD display
with
backlight
Minimal
order
size
Temperature
sensor
Humidity sensor
POS8.4420/109
S55625-H422-A100
Yes
No
Yes
20
POS8.4440/109
S55625-H444-A100
Yes
Yes
Yes
20
2.1.1 Equipment combinations
Type
Type no.
Document ID
Description
Controller
POS3.5715/100
A6V11417931
For HVAC control,
switching and monitoring
functions
Controller
POS3.3515/100
A6V11417931
For HVAC control,
switching and monitoring
functions
2.2 Features
●Measurement of room temperature (POS8.4420/109)
●Measurement of room temperature and humidity (POS8.4440/109)
●Keys to adjust the room temperature setpoint, ventilation, domestic hot water,
scheduler settings depending on the controller application
●LCD display of room temperature, operating modes, humidity (only for
POS8.4440/109), scheduler, notification, and clock setting
●Operation with 8 pushbuttons
●2-wire interface to the controller through KNX PL-Link
●Power supply of the room operator unit over KNX PL-Link
●LCD display with backlight

Product overview
System topology
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2.3 System topology

Product overview
Mechanical design
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2.4 Mechanical design
1
Gasket for panel mounting
4
KNX PL-Link bus connector
2
Base plate with
●screw holes for all common conduit
boxes
●guide channels for wiring from center,
up, or bottom
5
Jack connector for tool connection
3
Room operator unit
2.5 Diagrams
2.5.1 Connection terminals
KNX PL-Link plug
Connector
Pin
Description
+
KNX PL-Link (positive)
-
KNX PL-Link (negative)
To find the location of the KNX PL-Link plug, refer to Mechanical design
NOTICE! Users can choose either pair of the pins to connect.

Product overview
Diagrams
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NOTICE
Wires are NOT interchangeable!
The device is protected against faulty wiring, but communication does not work on
interchanged wires. Do not connect the KNX / KNX PL-Link bus to the tool plug,
only the tool.
Tool plug
Connector
Pin
Description
+
KNX PL-Link (positive)
-
KNX PL-Link (negative)
2.5.2 Connection diagrams
Operation
R1
The device - room operator unit (POS8.44xx)
N1
The controller - room automation station
Twisted pair

Product overview
Dimensions
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2.6 Dimensions
Unit: mm
Figure 1: Dimensions for housing
Figure 2: Dimensions for mounting

Important information on safety and disposal
General regulations
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3Important information on safety and disposal
This section explains general and system-specific regulations for mains and
operating voltages. It includes important information for your safety and the safety
of the entire plant.
3.1 General regulations
Comply with the following general regulations during engineering and execution:
●Electrical and mains power regulations for the given country.
●Other applicable, national regulations.
●Building installation regulations for the given country.
●Regulations of the utility company.
●Diagrams, cable lists, dispositions, specifications, and orders by the customer
or authorized engineering office.
●Third-party regulations, for example, by the general contractor or building
owner.
The electrical safety for building automation and control systems by Siemens is
essentially based on safely separating low voltage from mains voltage.
3.2 Device-specific regulations
Note permissible line lengths and topologies when planning and installing
controllers and field devices featuring KNX bus connection. Make sure the bus
supply complies with the KNX standard.
The device is maintenance free. Only the manufacturer can maintain the device.
3.3 Notes on EMC optimization
When setting up cable ducts, separate strongly interfering cables from susceptible
entities.
●Interfering cables: Motor cables especially from motors supplied by inverters,
energy-supplying cables.
●Susceptible entities: Control cables, low voltage cables, interface cables, LAN
cables, digital and analog signal cables.
●Both types of cables can be in the same cable duct, but in separate
compartments.
●If no three-sided, closed duct with separating wall is available, the interfering
cables must be separated by at least 150 mm from the others or placed in
separate ducts.
●Crossings of strongly interfering cables with possibly susceptible entities must
be at a right angle.
●In rare cases, signal and interfering power cables may be run in parallel,
resulting in a high interference risk.
It is recommended to use unscreened cables. Comply with the manufacturer's
installation recommendations for selecting unscreened cables. In general,
unshielded twisted pair cables have sufficient EMC properties for technical building
applications (including data applications) and do not require coupling to
surrounding earth.
KNX bus supply
Maintenance
Cable ducts
Cable types
Separate cables
Unscreened cables

Important information on safety and disposal
Disposal
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3.4 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.

Mounting and installation
Preparation
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4Mounting and installation
Comply with the following notes as well as the Mounting instructions
(A6V10733764) to mount the room operation unit.
4.1 Preparation
Check the package contents for visible signs of transport damage and for
completeness.
Do not install parts damaged during shipment. Contact your Siemens
representative in the event of damaged parts.
Note the information in the data sheet of these operating instructions before
installing the device:
●Climatic ambient conditions
●Protection classes
●The devices are suitable for wall mounting or panel mounting.
●Recommended height: 1.50 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.
Check package contents
Check operating
conditions
Check locations

Mounting and installation
Mounting instructions
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4.2 Mounting instructions
● Mounting instructions A6V10733764 are enclosed with the devices.
●Remove the breakout on the housing before putting the cable into the gaining
channel.
●If 4-wire cables are used for daisy chain wiring, remove the cable coating, as it
will not fit in the gaining channel.
●Keep a distance of at least 20 mm from the base plate to any object above the
base plate such as cable ducts to snap the device cover onto the base plate.
Mounting instructions
Wall mounting
Cable ducts on the wall
Panel mounting

Mounting and installation
Mounting instructions
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Dismounting/service

Commissioning
Programming pin and service LED
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5Commissioning
Before commissioning a room operator unit, make sure an application is
downloaded onto the connected controller, from where the functions are
downloaded into the room operator unit.
After successful commissioning, the room operator unit displays the default
operating page defined in the application loaded in the controller.
In a 1:1 connection, i.e. only one room operator unit connecting to one controller,
when powered up via the KNX bus for the first time, the room operator unit
automatically commissions itself.
After successful commissioning, the room operator unit displays the default
operating page defined in the application loaded in the room automation station.
5.1 Programming pin and service LED
The devices come with a programming pin and a red service LED on the rear.
5.1.1 Addressing
1. Briefly press the programming pin (< 2 s).
The device enters programming mode; the service LED is continuously on.
The tool identifies and assigns the currently active device.
2. After the device is commissioned, deactivate programming mode by shortly
pressing the programming pin (< 2 s). The service LED goes off.
Note:
●Programming mode returns to “disabled” each time the device restarts.
●Addressing and commissioning can be done automatically if a POS3.xx15 is
connected to the device.
5.1.2 Connection test
1. Press the programming pin (>5 s and <20 s) to test the KNX PL-Link
connection. After releasing the programming pin, testing of the KNX PL-Link
connection starts; the service LED flashes (1/4 s on, 7/4 s off).
After approximately 12 s, the test result is displayed:
Prerequisites
Automatic commissioning
(1:1 connection)

Commissioning
Programming pin and service LED
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- If the test is positive, the LED is lit continuously.
- If the test fails, the LED flashes (1 s on, 1 s off).
2. Briefly press the programming pin (<2 s) to stop displaying the result of the
connection test. The service LED goes off.
5.1.3 Reset to factory setting
Press the programming pin (>20 s). The device is locked and reboots within 8 s.
The controller removes it from its device list. During this time, the device can safely
be removed from the network.
NOTICE! The LED is off during this procedure.
If the bus plug remains connected, the device acts like a newly inserted device
requiring automated or manual configuration.
NOTICE
This operation resets all user-defined data and configuration settings to factory
default.
This operation is irreversible.

Technical data
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6Technical data
Power supply
Operating voltage
KNX PL-Link DC 21...30 V
Max power consumption
7...10 mA
Interfaces
Type of port between controller and room
operator unit
KNX PL-Link
Baud rate
9.6 kbps
Protocol
KNX PL-LINK
Standard KNX connector
Wire diameter 0.8 mm, max. 1.0 mm (solid conductors
only)
Cable type
2-core twisted pair, stranded, solid
Single cable length (from room automation
station to room operator unit)
<1000 m
Section
0.5…1.5 mm²
Bus line polarity
PL+, PL-
Bus terminating resister
not required
Sensor data
Temperature sensor
Measuring element
NTC resistance sensor
Measuring range
0...50 °C
Measuring accuracy (5...30 °C)
±0.8 °C
Measuring accuracy (25 °C)
±0.5 °C
Ambient conditions and protection classification
Housing protection
Protection standard as per EN 60529
●IP30
●IP33 for surface part
Insulation protection class
Class III
Climatic ambient conditions
●Normal operation
●Transport
●Environmental conditions: Class 3K5
Temperature 0...50 °C
Air humidity <85% r.h.
●Environmental conditions: Class 2K3
Temperature -25...70 °C
Air humidity <95% r.h.
Mechanical ambient conditions
Normal operation
Transport
Class 3M2
Class 2M2

Technical data
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Standards, directives and approvals
EU conformity (CE)
A6V11210253 *)
RCM conformity to EMC emission standard
A6V11210257 *)
IC compliance
CAN ICE-3(B)/NMB-3(B)
UL compliance
UL916
FCC compliance
Part 15 of the FCC rules. Operation is subject to
the following two conditions: 1) this device may
not cause harmful interference, and 2) this device
must accept any interference received, including
interference that may cause undesired operation.
Environmental compatibility
The product environmental declaration
(A6V10733777 *) contains data on
environmentally compatible product design and
assessments (RoHS compliance, materials
composition, packaging, environmental benefit,
disposal).
*) Documents can be downloaded at the following address:
http://siemens.com/bt/download
NOTICE
This equipment has been tested and found to comply with the limits for a Class B
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference in a residential
installation. This equipment generates, uses and can radiate radio frequency
energy and, if not installed and used in accordance with the instructions, may
cause harmful interference to radio communications. However, there is no
guarantee that interference will not occur in a particular installation. If this
equipment does cause harmful interference to radio or television reception, which
can be determined by turning the device off and on, the user is encouraged to try
to correct the interference by one or more of the following measures:
●Reorient or relocate the receiving antenna.
●Increase the separation between the equipment and receiver.
●Connect the equipment into an outlet on a circuit different from that to which
the receiver is connected.
●Consult the dealer or an experienced radio/TV technician for help.
General data (POS8.4420/109)
Color
Signal white (RAL9003)
Weight
145 g
General data (POS8.4440/109)
Color
Signal white (RAL9003)
Weight
146 g

Functions
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7Functions
Elements
Functions
/ /
Operating modes: Home / Away / Temporary
/
Temporary modes: Ventilation boost / Fireplace
/ / /
HVAC modes: Comfort / Economy / Unoccupied / Protection
/
Auto / Manual
Manual
Ventilation
Temperature
Domestic hot water
Notification
Clock
/
General / Expert
/
Indicates an operable element
Wait
Start
List
Alarm (A-alarm) notification abnormal and unacknowledged
Alarm(A-alarm) notification normal and unacknowledged
Alarm (A-alarm) notification abnormal and acknowledged
Alarm (A-alarm) notification normal and acknowledged
Service (B-alarm) notification abnormal and unacknowledged
Service (B-alarm) notification normal and unacknowledged
Service (B-alarm) notification abnormal and acknowledged

Functions
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Elements
Functions
Acknowledge all notifications
Reset
Confirm
Cancel
Go back
/
Exit / next
+ / -
Increase / decrease
Add a switching point
Edit
Delete
1 2 3 4 5 6 7
1=Monday, 2=Tuesday, …, 6=Saturday, 7=Sunday
Time
Switch point
Scheduler bar
Read parameter
Outside temperature
Room temperature
Auxiliary input for Comfort
Auxiliary input for Economy
Auxiliary input for Unoccupied
Auxiliary input for Protection
Auxiliary input for Ventilation
Auxiliary input for fireplace
Auxiliary input for kitchen hood