LONWORKS® bus)

Operator controls(QAX91.1 only)80169ADial for continuously variableadjustment of the setpointLandis & StaefaDisposalThe device is classified as waste electronic equipment in terms of the EuropeanDirective 2002/96/EC (WEEE) and should not be disposed of as unsorted municipalwaste.The relevant national legal rules are to be adhered to.Regarding disposal, use the systems setup for collecting electronic waste.Observe all local and applicable laws.Engineering notes The unit has no connection terminals The wireless range is 30 metres (depending on room topology and materials) To ensure a good data link with the receiver, avoid metal obstacles in the wirelessfield. Avoid mounting the room unit on or behind a metal cover! The unit must be mounted at least 1 metre from the receiver. The unit receives its power from two batteries (type LR6 or AA) inserted in thebattery holder. An error signal will be transmitted after 3 years of uninterruptedoperation (battery monitoring feature). The batteries must then be replaced (to avoidthe risk of leaking) N.B.: The plant documentation must contain a note to this effect.Mounting instructions The room unit is suitable for wall-mounting The preferred mounting height is 1.5m above floor level An elevated position of the units, or mounting on the same storey as the receiver canincrease the wireless range Avoid direct sunlight and draughts The unit should not be mounted in recesses, in shelving units, behind curtains ordoors or above or near direct heat sources The admissible ambient conditions must be observed The mounting instructions and a drilling template are printed on the device packaging A set of fixing accessories is enclosed with the room unitSTOPCaution! Do not mount on a metal surface Do not install behind a cover or a metal grid which impedes wireless communication The unit must be mounted at least 1 metre from the receiver.CommissioningRefer to data sheet CA2N1644 for the RXZ90.1 receiver.Please do not make any adjustments without first carefully reading the commissioningnotes.Siemens QAX90.1, QAX91.1 – Wireless room units CA2N1643en_02Building Technologies 30 Jun 20093/6

Technical dataPower supplyOperating dataSTOPAlkaline batteries, 2 x 1.5 VBattery replacement (to avoid failure)Temperature sensorsMeasuring elementType LR6 or AA, alkalineEvery 3 yearsNTC resistance sensorMeasuring range 0 ... 40 °CResponse time 8 minMeasuring accuracy (5 … 30 °C) 0.5 KMeasuring accuracy (25 °C) 0.25 KSample rate (AD converterEvery 15 son sensor element)Room temperature transmitted to receiver When temperature changes by0.125 K compared to previousvalue At least once every 45 minutesSetpoint adjustment (QAX91.1 only)Correction range (defined by controller) Max. 12 K (basic setting 3 K)Accuracy over full correction range 10 %Interfaces Wireless room unit – Receiver Uni-directionalFrequency band 868 MHzActual frequency 868.95 MHzBaud rate19.2kbit/sModulationBFSKChannel codingNRZ / BCHTransmitter power (ERP)1 mW (0 dBm)Range inside buildingApprox. 30 m(depending on building penetration)Establishing data link (configuration) Pushbutton methodData link test (registration onService pin (brief pressure of button)LONWORKS®)Housing protection standard Protection standard to EN 60529 IP 30Ambient conditions Ambient conditions to IEC721 Operation: Transport:Environmental conditions Class 3K5 Class 2K3Temperature 0 ... 50 °C – 25 ... 70 °CHumidity < 85 rh < 95 rhMechanical conditions Class 3M2 Class 2M2Standards and directivesconformityElectromagnetic compatibility2004/108/ECLow Voltage Directive2006/95/ECRadio Equipment and Telecommunication 1999/5/ECTerminal EquipmentElectromagnetic compatibilityImmunity (industrial & residential) EN 61000-6-2Emission (residential) EN 61000-6-3Product safety EN 60950-1Product safety (EMF) EN 50371ERM (Short range devices) EN 300 220-2EN 301 489-3C-Tick conformity (EMC) AS/NZS 61000-6-3DimensionsSee “Dimensions”Colour Front plate NCS S 0502-G RAL 9003 signal whiteHousing base and mounting plateRAL 7035 light greyWeight Excluding packaging but with batteries 0.17 kg4/6Siemens QAX90.1, QAX91.1 – Wireless room units CA2N1643en_02Building Technologies 30 Jun 2009

Dimensions800894,29,556601009032365660Siemens QAX90.1, QAX91.1 – Wireless room units CA2N1643en_02Building Technologies 30 Jun 20095/6

6/6 2000 - 2009 Siemens Switzerlands Ltd.Subject to technical alterationSiemens QAX90.1, QAX91.1 – Wireless room units CA2N1643en_02Building Technologies 30 Jun 2009