411 AQR253… AQR257… Symaro™ Flush-mount room sensor KNX S-Mode / KNX LTEMode / KNX PL-Link AQR253… AQR257… • Communicating room sensor with KNX S-Mode, KNX LTE-Mode and KNX PL-Link for Desigo™ Total Room Automation • Combinable multi-sensor to measure temperature, humidity, and CO2 concentration • Range 0…+50 °C / 0…95 % r.h.
Use The room sensor is used in heating, ventilating and air conditioning plants to optimize comfort and energy consumption via demand-controlled ventilation. The room sensor records: • CO2 concentration in rooms with varying occupancy due to time or number of people such as in museums, movie theaters, offices, meeting rooms, class rooms, auditoriums, hospitals, living spaces. • Relative room humidity. • Room temperature. • A second room temperature for averaging, or floor or ceiling temperature.
Accessories Siemens Design frames Type (ASN) AQR2510NFW Stock number (SSN) S55720-S158 AQR2510NHW S55720-S159 AQR2510NGW S55720-S160 Frame designation Format Dimensions (color) [mm] DELTA line (titanium CEE/VDE 80 x 80 white) DELTA miro (titanium British 90 x 90 white) Standard DELTA azio (titanium 3 Modular 120 x 80 white) UL 80 x 120 See "Dimensions" for design frame dimensions.
Controllers and actuators KNX PL-Link compact controller Synco 7… controller Synco living central apartment unit Controller (KNX S-Mode) Climatix controller Fan coil control, 3-stage Motorized valve actuator Electrothermal valve actuator Type PXC3.. Data sheet 9203 RMS705 / RMK770 QAX903 / QAX913… 3123 / 3132 2741 / 2740 RXB2x.1…, RXL2x.1 POL63x.00 / POL68x.xx 5WG15621AB11 5WG15627AB02 5WG16051AB01 3873 / 3874 / 3877 3230 / 3903 Configuration and service tools USB-KNX interface OCI700.1 see www.
Air quality indication (AQR2535…Q) The background-lit symbol informs on the current level of CO 2 in the room. The colors green / orange / red of the background lighting indicate good / mediocre / poor air quality. The display can be switched on or off via communication object, e.g. switch or timer. Binary inputs (AQR257…) The room sensor acquires the states of up to two potential-free contacts.
Measuring accuracy Measuring accuracy among other factors depends on the following: • Prevailing air flow. • Wall surfaces (rough, smooth). • Wall texture (wood, plaster, concrete, brick). • Wall type (interior, exterior). See also "Mounting notes". In an installed sensor, measuring inaccuracies are constant after a ca. 1-hour operating time. Measuring inaccuracies relating to temperature measurements can be corrected as needed.
1410J07 Comply with the various regulations on separating various voltage levels, when mounting the temperature sensor (with extra-low voltage protection) alongside the recessed conduit boxes connected to the low-voltage power. In this case, the mounting frames must be connected to the protective ground wire with a flat plug connector plug designed for grounding. Note the permissible ambient climate (see "Technical data").
Commissioning notes Service and connection elements Commissioning prerequisites The service elements program button with LED and the tool connection plug as well as the printed KNX ID are available on the base module. The base module contains the measuring switch and connection terminals in addition to service elements (see "Connection terminals"). A Tool connection plug B C LED status display Programming button D KNX ID no.
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 via the 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".
Degree of protection Electrical connection Environmental conditions Materials and colors Directives and Standards Environmental compatibility Dimensions (weight) Protection degree of housing IP30 with front module IP20 without front module according to EN 60529 Protection class III according to EN 60730-1 Bus connection: Spring terminal Sensor inputs: 4 screw terminals 0.6 – 0.8 mm wire 1 0.25...2.5 mm2 (wire/strand) 2 0.25...1.
Connection terminals KNX Sensor input (NTC 10k) Common sensor ground Binary inputs (NO / NC) Connection diagram Dimensions (in mm) Base module 11/14 Siemens Smart Infrastructure Flush-mount room AQR253…, AQR257… KNX S-Mode / KNX LTE-Mode / KNX PL-Link CE1N1411en 2020-12-31
.5 38 50.5 55 70.8 70.8 1410M01 47 55 13.
Mounting plate and design frame Mounting plate "CEE/VDE" (square): DELTA line design frame: Mounting plate "British standard" (square): DELTA miro design frame: 83 68 30 11 1410M03 48.
Issued by Siemens Switzerland Ltd Smart Infrastructure Global Headquarters Theilerstrasse 1a CH-6300 Zug Tel. +41 58 724 2424 www.siemens.com/buildingtechnologies © Siemens Switzerland Ltd, 2011 Technical specifications and availability subject to change without notice.
