Siemens QAA70 Manuale utente

CE1Q2281en

04.04.2002

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QAA50.110 QAA70

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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

2/6

Siemens Building Technologies Room unit QAA50.110, QAA70 CE1Q2281en

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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QAA70

QAA50.110 Room unit bus (PPS) RVA...

QAW44 Remote room sensor QAA70

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For a more detailed description of the technical design, refer to documentation

CE1P1638.

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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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Siemens Building Technologies Room unit QAA50.110, QAA70 CE1Q2281en

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)

2281Z03

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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

4/6

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

2284Z33a

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2284Z35a

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2812Z08a

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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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Siemens Building Technologies Room unit QAA50.110, QAA70 CE1Q2281en

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PPS (interchangeable)

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1A6 PPS for boiler control (interchangeable)

2MBPPS for boiler control (interchangeable)

3Room temperature sensor QAW44 /

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4Room temperature sensor QAW44 /

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Siemens Building Technologies Room unit QAA50.110, QAA70 CE1Q2281en

HVAC Products 04.04.2002

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Siemens Building Technologies Ltd.

Subject to alteration

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