User Manual

ManualsBrandsSiemens ManualsOperator unitsRoom operating unit POS8.4420/109; POS8.4440/109

A6V11519429_en--_b

2020-10-14

Room operating unit

POS8.4420/109; POS8.4440/109

Communicative room operating units with KNX PL-Link.

● Measurement of the room temperature (POS8.4420/109)

● Measurement of the room temperature and humidity (POS8.4440/109)

● Keys for adjustment of the room temperature setpoint, ventilation, domestic hot

water, time scheduler settings depending on the controller application

● LCD display of room temperature, operating modes, humidity (only for

POS8.4440/109), time scheduler, notification, and clock setting

● Operation with 8 push buttons

● 2-wire interface to the controller through KNX PL-Link

● Power supply of the room operating unit over KNX PL-Link

● LCD display with backlight

Summary of content (12 pages)

PAGE 1
Room operating unit POS8.4420/109; POS8.4440/109 Communicative room operating units with KNX PL-Link. ● ● ● ● ● ● ● ● A6V11519429_en--_b 2020-10-14 Measurement of the room temperature (POS8.4420/109) Measurement of the room temperature and humidity (POS8.4440/109) Keys for adjustment of the room temperature setpoint, ventilation, domestic hot water, time scheduler settings depending on the controller application LCD display of room temperature, operating modes, humidity (only for POS8.
PAGE 2
Use ● ● ● Measure and indicate the room temperature with POS8.4420/109 Measure and indicate the room temperature and humidity with POS8.
PAGE 3
Elements Functions 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 Acknowledge all notifications Reset Confirm Cancel Go back / +/- Exit / next Increase / decrease Add a switch point Edit Delete 1234567 1=Monday, 2=Tuesday, …, 6=Saturday, 7=Sunday Time Switch point Time sch
PAGE 4
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 operating unit Type summary Product number Stock number Feature Temperature sensor Humidity sensor LCD display Minimal with backlight order size POS8.4420/109 S55625-H422-A100 Yes No Yes 20 POS8.
PAGE 5
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 receives their power from the connected controller via the KNX PL-Link interface or from the jack connector. NOTICE De-energize the controller before wiring the device.
PAGE 6
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 applications from its connected controller by automatic commissioning. When it is powered up using the KNX bus for the first time, it performs the commissioning procedure automatically.
PAGE 7
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.
PAGE 8
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 operating 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 operating unit) <1000 m Section 0.5…1.
PAGE 9
Standards, directives and approvals 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.
PAGE 10
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 communications does not work on interchanged wires. The KNX / KNX PL-Link bus MUST NOT be connected to the tool plug, only the tool.
PAGE 11
R1 The device - room operating unit (POS8.
PAGE 12
Dimensions Unit: mm Dimensions for housing Dimensions for mounting Issued by Siemens Switzerland Ltd Building Technologies Division International Headquarters Theilerstrasse 1a CH-6300 Zug Tel. +41 58 724 2424 www.siemens.com/buildingtechnologies 12 Siemens Building Technologies Document ID A6V11519429_en--_b Edition 2020-10-14 © Siemens Switzerland Ltd, 2019 Technical specifications and availability subject to change without notice.