Siemens POS8.4420/109 User manual

A6V11519429_en--_a

2019

Room operator units

POS8.4420/109; POS8.4440/109

Communicating room operator units with KNX PL

Link.

●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 via KNX PL-Link

●Power supply of the room operator unit via KNX PL-Link

●Backlit LCD display

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Use

●Measure and indicate the room temperature with POS8.4420/109

●Measure and indicate both room temperature and humidity with POS8.4440/109

●Switch different operating modes: Home, Away and Temporary

●Select different HVAC modes: Comfort, Economy, Unoccupied, and Protection

Application

The device communicates via controller on KNX PL-Link bus to access the controller's

preinstalled application:

●Heat recovery ventilation

Functions

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

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Elements Functions

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

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

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Mechanical design

1 Frame for panel mounting 4 KNX PL-Link bus connector

2 Base plate with

●screw holes for all common conduit boxes in

regions such as EU, UK, and so on.

●guide channels for wiring from center, up, or

bottom

5 Jack connector for tool connection

3 Room operator unit

Type summary

Product number Stock number Feature LCD display

with backlight

Min. 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

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

Product documentation

Topic Title Document ID:

Installation, cable length, topology Mounting instructions A6V10733764

Engineering, commissioning, and operation Basic documentation A6V11471220

CE declaration CE declaration A6V11210253

Product environmental declaration Product environmental

declaration

A6V10733777

All documentation listed in the above table can be downloaded from:

http://siemens.com/bt/download.

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Notes

Security

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.

Engineering

●The device offers plug and play functionality.

●The device is powered via the connected controller on the KNX PL-Link interface or the

jack connector.

NOTICE

energize the controller before wiring the device.

Mounting

●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.

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●Seal the conduit box or the installation tube if any, as air currents can affect sensor

readings.

●Adhere to allowed ambient conditions.

For more information about mounting, see the

Mounting instructions A6V10733764

Installation

CAUTION

The devices are not protected against accidental connection to AC 230 V.

●Use the correct cables for the KNX PL-Link bus.

●Do not interchange the wires of the KNX PL-Link cable.

●Observe all local installation regulations.

Commissioning

The device gets its applications from the connected controller by automatic commissioning.

During initial power-up using the KNX bus, commissioning begins automatically.

Operation

The application loaded in the connected controller determines device operation.

Operating mode:

●Auto mode

– The device always works as defined in the application.

– Users can change settings temporarily, such as heating temperature or the domestic

hot water setpoint.

●Manual mode

– Users can change operating settings, such as operating mode, heating and domestic

hot water setpoint, HVAC mode, etc.

●Temporary function

– There are two temporary modes: ventilation boost and fire place. When temporary

mode times out, the device returns to the previous mode. Tapping button 1 in

Temporary mode terminates Temporary mode and returns the device to Auto mode.

Parameter settings

The behavior of the device is configured via parameters. Long-press button 8 to open the

standard page to adjust settings for P01 to P05, and long-press buttons 6 and 8 to open the

expert page to adjust settings for P01 to P05 and P51.

More information about parameter descriptions, see

Basic documentation (A6V11471220).

Scheduler settings

Users can use the scheduler to adjust the HVAC modes. For example, users can set the

device to run in Comfort mode from 9:00 to 17:00 and Economy mode from 17:00 to 19:00.

Long-press button 2 to open the scheduler settings page.

Maintenance

The device can be cleaned with off-the shelf, solvent-free cleaning agents.

Do not use mechanical aids (rough sponge or similar materials) – only a soft, damp cloth.

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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". Siemens rejects any and all warranties in the event that

third-party products are used.

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Technical 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

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,

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Standards, directives and approvals

environmental benefit, disposal).

*) Documents can be downloaded at the following address:

http://siemens.com/bt/download

NOTICE

This equ

ipment 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 r

adio/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

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Diagrams

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.

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)

Connection diagrams

Operation

R1 The device - room operator unit (POS8.44xx)

N1 The controller - room automation station

Twisted pair

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