Siemens QAA70 User manual

CE1Q2281en
04.04.2002
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PPS Interface
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Used in combination with boiler or heating controllers (RVA...). Room temperature
control in:
•Single or 2-family houses
•Smaller multifamily houses
•Holiday houses and villas
Standard heating systems, such as radiator, convector, underfloor and ceiling heating
systems, and radiant panels.
The room units are designed for the OEM market. They are supplied directly to the
boiler manufacturer.
Use
Application
Market

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HVAC Products 04.04.2002
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•Operating levels based on ergonomic and functional considerations x x
•Operating mode, setpoint adjustment and occupancy button x x
•Every setting or change is displayed and thus acknowledged x x
•7-segment display x x
•A number of actual values can be accessed via the Info button x
•Additional functions can be programmed after opening the cover x
•Special service level with protected access x
•One 7-day program per heating circuit and up to 3 switching cycles per day
can be selected on an individual basis x
•Holiday program x
•Resetting to default values, if required x
•Programming lock (e.g. for child-proofing) x
•Elegant housing made of recyclable plastic x x
•Communication with the boiler temperature controler over PPS xx
•Powered via PPS xx
•Straightforward installation x x
•Cable entry for wall mounting or mounting on a recessed conduit box x x
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QAW44 Remote room sensor QAA70
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For a more detailed description of the technical design, refer to documentation
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The unit consists of the following components:
•Housing with integrated electronics and operating elements
•Base for wall mounting with the connection terminals
Operating functions
Other features
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HVAC Products 04.04.2002
•Button for selecting the operating mode
•Setting knob for adjusting the setpoint
•Occupancy button for temporary changeover
•Info button (QAA70)
•Line selection and adjustment of values with buttons behind the housing front
(QAA70)
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PPS Terminals 2-wire connection (interchangeable)
cable length max. 75 m with a cross-section of 0.5 mm2
Cable resistance max. 2 x 3 Ohm
Power consumption QAA50.110: 45 mW (typically)
QAA70: 100 mW
Safety class III to EN 60730 (when mounted correctly)
Degree of protection of housing QAA50.110: IP 20 to EN 60529
QAA70: IP 30 to EN 60529
Contamination environment to EN 60730
Operation IEC 721-3-3 class 3K 5
Temperature 0...50 °C
Humidity < 85 % r.h.
Transport IEC 721-3-2 class 2K 3
Temperature -25..70 °C
Humidity < 95 % r.h.
Storage IEC 721-3-1 class 1K 3
Temperature -25..70 °C
Humidity < 95 % r.h.
conformity
EMC directive 89/336/EEC
Immunity EN 50082-1, EN 50082-2, EN 60730-1
EN 50090-2
Emissions EN 50081-1, EN 50081-2, EN50090-2-2
Low voltage directive 73/23/EEC
– Electrical safety EN 60730-1, EN 60730-2-9
Measuring range QAA50.110: 0..45 °C
QAA70: 0..32 °C
Backup of time switch QAA50.110: None
QAA70: min. 12 h
Software class A to EN 60 730
Weight QAA50.110: approx. 0.17 kg
QAA70: approx. 0.22 kg
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Operating voltage
Protection
Environmental
conditions
Standards
Room sensor
Other features

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Siemens Building Technologies Room unit QAA50.110, QAA70 CE1Q2281en
HVAC Products 04.04.2002
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•The products may only be used in building services plant and applications as
described above.
•When using the products, all requirements specified under ”Technical data”must be
observed.
•The local regulations for electrical installation must be complied with.
•In the main living room or reference room.
•The place of installation should be chosen so that the sensor can capture the room
temperature as accurately as possible, without being affected by direct solar
radiation or other heating or cooling sources.
•Mounting height is about 1.5 meters above the floor.
•The unit can be fitted to most commercially available recessed conduit boxes or
directly on the wall.
•Wall mounting
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•The controller may not be exposed to dripping water.
•The local regulations for electrical installations must be complied with.
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HVAC Products 04.04.2002
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Subject to alteration