Siemens POS8.4420/414 User manual

Room operating unit for Flexit
POS8.4420/414
A6V10958126_en--_a
Building Technologies
2017-06-30

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Table of Contents
1About this document............................................................................. 3
1.1 Revision history ...........................................................................................3
1.2 Before you start ...........................................................................................3
1.3 Reference documents..................................................................................4
2Product overview ................................................................................. 5
2.1 Type summary.............................................................................................5
2.2 Features......................................................................................................5
2.3 System topology..........................................................................................5
2.4 Mechanical design.......................................................................................6
2.5 Diagrams.....................................................................................................6
2.6 Dimensions .................................................................................................9
3Important 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
4Mounting and installation .....................................................................12
4.1 Preparation................................................................................................12
4.2 Mounting instructions.................................................................................13
5Commissioning ...................................................................................15
5.1 Programming pin and service LED.............................................................15
6Technical data ....................................................................................17
7Functions...........................................................................................19
8Operation...........................................................................................21
8.1 Home page................................................................................................21
8.2 Fan speed settings page............................................................................22
8.3 Supply air temperature settings page.........................................................22
8.4 General settings page................................................................................23
8.5 Prolongation functions ...............................................................................24
8.6 Expert mode..............................................................................................24
8.7 Standby page ............................................................................................26
9Appendix............................................................................................27
9.1 Parameters................................................................................................27

About this document
Revision history
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1About this document
1.1 Revision history
Revision Date Changes Section
aSep. 2016 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-
[e-mail] 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 A6V10733771
[2] Mounting instructions A6V10733764

Product overview
Type summa
ry
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2Product overview
2.1 Type summary
Product number Stock number Temperature
sensor
LCD display Minimal quantity of order
POS8.4420/414 S55625-
H422-A414
Yes Yes 20
2.2 Features
●Measurement of the room temperature
●Keys for adjustment of the room temperature setpoint, supply air/exhaust air
fan control, time settings, etc.
●LCD display of room temperature, operating modes, and time.
●2-wire interface to the controller through KNX PL-Link
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
●gaining 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 the Mechanical design .
NOTICE! You can choose either pair of pins to connect.

Product overview
Diagrams
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NOTICE
Wires are NOT interchangeable!
The device is protected against faulty wiring, but communications does not work
on interchanged wires. The KNX / KNX PL-Link bus MUST NOT be connected to
the tool plug, only the tool.
Tool plug
Connector Pin Description
+KNX PL-Link (positive)
-KNX PL-Link (negative)
RJ45 plug of the tool cable
Connector Pin Description Pin Description
1CE+, KNX 5 Voltage 16V
2CE-, KNX 6 N.C.
3 N.C. 7 Ident'pin
4N.C. 8 GND
NOTE:
De-energize the controller before wiring POS8.4420/414.

Product overview
Diagrams
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2.5.2 Connection diagrams
Operation
R1 Room operator unit
N1 Room automation station
Twisted pair
Service tool
Connect the ABT to load the application in the room automation station, or for
service purposes, do one of the following:
●Directly to the room automation station
●To the room unit using the tool cable and the OCI702 service interface (see
data sheet A6V10438951)

Product overview
Dimensions
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2.6 Dimensions

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
Please comply with the following general regulations during engineering and
execution:
●Electrical and mains power ordinances 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 electronics device for disposal in terms of European
Directive 2012/19/EU 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.

Mo
unting 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 content 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 and 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 some cable ducts, so that the device cover can be
snapped 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
Prerequisites
Before commissioning a room operator unit, ensure that an application is
downloaded on to the connected room automation station, from where the
functions are downloaded to the room operator unit.
Automatically commissioning (1:1 connection)
In a 1:1 connection, which is only one room operator unit connecting to one room
automation station, the first time it is powered up using the KNX bus, the room
operator unit performs the commissioning procedure automatically.
When the commissioning is finished successfully, the room operator unit displays
the default operation page, which is 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 (<0.5 s).
aThe device enters the programming mode; the service LED is continuously
on. The tool identifies the currently active device and assigns it.
2. After the device is commissioned, deactivate programming mode by shortly
pressing the programming pin (0.5 s). The service LED goes off.
NOTE: Programming mode returns to “disabled” each time the device restarts.
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 (1/4s on, 7/4s off).
After approximately 12 seconds, the test result is displayed:

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 (<0.5 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
seconds. The room automation station 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...30V
Max power consumption 7...10 mA
Interfaces
Type of port between room automation
station and room operator unit
KNX/ PLLink
Baud rate 9.6 kbps
Protocol KNX PL-LINK
Standard KNX plug Wire diameter 0.8 mm, max. 1.0 mm
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
Humidity Sensor Measuring range 10%...95% rh
Accuracy (rh 20%...80%) ±4% at 25°C
Accuracy (rh 0%...20%, 80%...95%) ±6% at 25°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 (0... 122 F)
Air humidity <85% rh
●Environmental Conditions: Class 2K3
Temperature -25...70°C (-4... 158 F)
Air humidity <95% rh
Mechanical ambient conditions
Normal operation
Transport
Class 3M2
Class 2M2

Technical data
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Standards, directives and approvals
EU conformity (CE) A5W90002244
RCM conformity to EMC emission standard A5W90002245
CSA Compliance CSA C22.2M205
IC Compliance CAN ICE-3(B)/NMB-3(B)
UL Compliance UL916, UL873/UL60730
FCC Compliance Part 15 of the FCC rules. Operation is subject to
the following two conditions: 1) the device may not
cause harmful interference, and 2) the device
must accept any interference received, including
interference that may cause undesired operation.
Environmental compatibility The product environmental declaration
(A5W90002450) contains data on environmentally
compatible product design and assessments
(RoHS compliance, materials composition,
packaging, environmental benefit, disposal).
NOTICE
The device 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. The device 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 device 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 device and receiver.
●Connect the device into and 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
Color Signal white (RAL9003)
Weight 150g

Functions
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7Functions
Display example and element functions
Elements Functions
/ Indicates an operable element
Auto mode enabled/disabled
Timer high mode
/Home mode/Away mode
Room temperature
/Supply air/Exhaust air
/ Electrical heater enabled/disabled
Timer mode
/ /
Prolongation mode of Cooker hood mode/High mode/Fire
place mode
Alarm notification
Alarm notification OK, but not acknowledged
Alarm notification acknowledged
Alarm notification, normal, acknowledged
Service notification
Service notification ok, but not acknowledged
Service notification acknowledged
To confirm
To cancel
Go back

Functions
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Elements Functions
General settings page
Home page
Fan speed settings page
Supply air temperature settings page
Alarm list is empty
Read parameter mode