Siemens QAW910 User manual

C1N2703en

11.07.2006

Building Technologies

HVAC Products

2703

Synco™900

Room Unit QAW910

•Wireless room unit

•RF communication based on KNX standard (868 MHz, bidirectional)

•Operation and display of space heating functions

•Acquisition of the room temperature

•Battery-powered by commercially available 1.5 V batteries

Use

•For integration into the Siemens Synco 900 system

•Selection of room operating mode, timer function and room temperature setpoint

readjustment

•Display of space heating function and status messages

•Acquisition of the room temperature in HVAC plant

•Especially suited for:

−Renovation projects (old buildings, museums, churches, historical buildings, etc.)

−Difficult wall-mounting situations (sandstone, glass, etc.)

−Variable floor plans (different décors, other furniture)

−New houses and buildings

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Building Technologies Room unit QAW910 CE1N2703en

HVAC Products 11.07.2006

Equipment combinations

The QAW910 room unit is designed for use with the Siemens Synco 900 system. For

more detailed information about equipment combinations, refer to the Data Sheet

covering the central apartment unit (CE1N2707en).

Ordering

When ordering, please give quantity, product name and type reference.

Each QAW910 is supplied complete with alkaline batteries, fixing material and

Mounting Instructions.

Product documentation

The Operating and Commissioning Instructions for the QAW910 are contained in the

product documentation of the central apartment unit.

Functions

The QAW910 is used for the operation and display of basic space heating functions. It

also forwards the acquired room temperature to the central apartment unit, either

periodically or when changes occur. The room temperature is shown on the display of

the QAW910.

The room operating mode can be switched from Automatic to Manual, and vice versa.

The selection is made with the "Mode" button and shown on the display.

The timer function is used to activate Comfort mode of the respective room for up to 24

hours. The setting is made with the “Timer“ button and shown on the display.

The room temperature setpoint can be readjusted with the setting knob. The

readjustment made is shown on the display.

The binding is used by the QAW910 to sign on at the central apartment unit, thus

ensuring integration into the RF system. The binding process is triggered via the

multifunction button. The RF symbol appears on the display.

The multifunction button can be used to query the batteries’ capacity. It appears on the

display. When the batteries are close to exhaustion, their state is constantly displayed.

The multifunction button can be used to trigger a binding test. This test is made to

check the radio link to the central apartment unit. The RF symbol appears on the

display.

The multifunction button can be used to reset the QAW910 to the default state as

supplied. Then, the QAW910 must be reintegrated into the system.

All error and maintenance messages are forwarded to the central apartment unit where

they appear on the display.

Scope of delivery

Main function

Room operating mode

Timer function

Room temperature

setpoint readjustment

Binding

Status query

RF binding test

Supply state

Error and

maintenance

messages

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Building Technologies Room unit QAW910 CE1N2703en

HVAC Products 11.07.2006

The following messages are delivered by the QAW910:

Error messages Maintenance message

Sensor error

(failure of room temperature sensor)

Communication error

(no communication for one hour)

Batteries exhausted

(battery life ≤3 months)

Operating and indicating elements

QAW910

Mode

2703Z02

SIEMENS

Operating elements Function

c”Mode” button Selection of room operating mode:

(Automatic, Manual, Comfort, Precomfort,

Economy, and Protection)

d”Timer” button Activation and setting of timer function

eSetting knob Room temperature setpoint readjustment.

It acts on the Comfort and Precomfort

setpoint within a range of -3 to +3 °C

fMultifunction button

(inside the battery compartment)

Battery state query

RF binding test

Binding

Disconnect device from system

Reset to supply state

For more detailed information about the functions and operation of the QAW910, refer

to the product documentation covering the central apartment unit.

Operating elements

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Building Technologies Room unit QAW910 CE1N2703en

HVAC Products 11.07.2006

Notes on engineering and operation

The QAW910 must be mounted inside the house or building, on an inner wall about

1.5 m above the floor. To ensure that the QAW910 will acquire the room temperature

as accurately as possible, the following conditions must be observed:

•The QAW910 must not be mounted on an outer wall, not in niches, bookshelves, and

not behind doors or curtains

•Temperature acquisition must not be adversely affected by direct solar radiation, air

drafts, or other heat or refrigeration sources

•The permissible environmental conditions must be observed

•The QAW910 must not be exposed to dripping water

•For notes relating to engineering and mounting RF devices of the Siemens Synco

900 system, refer to Data Sheet CE1N2708en

•The base of the room unit must be fitted on a flat wall

•Minimum clearance at the bottom should be 60 mm to ensure that the battery

compartment is easily accessible

Mode

2703 Z03

≥60 mm

SIEMENS

QAW910

Mounting location

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HVAC Products 11.07.2006

Mounting with the base:

The QAW910 can be fitted to most commercially available recessed conduit boxes or

directly on the wall.

Mount the QAW910 first and then insert the batteries.

Prior to commissioning, check to ensure that the QAW910 is correctly fitted to the wall

and that the batteries are correctly inserted.

The QAW910 is maintenance-free.

The system indicates when batteries must be replaced. The batteries are located in the

battery compartment. Batteries can be changed without removing the sensor from the

wall and there is no need for using tools (reversed polarity protection).

In terms of disposal, the QAW910 is classified as electronic scrap conforming to the

European Directive 2002/96/EG (WEEE) and must not be disposed of as domestic

waste. The relevant national legal regulations must be complied with. The unit must be

disposed of through the relevant channels. Local and currently valid legislation must be

observed. Exhausted batteries must be disposed of in compliance with environmental

regulations.

Warranty

Application-related technical data are only warranted in connection with the Siemens

Synco 900 system. For equipment combinations, refer to the Data Sheet of the central

apartment unit.

When using the QAW910 together with third-party devices, correct functioning

must be ensured by the user. In that case, Siemens will assume no responsibility

for service and warranty.

Technical data

Type of battery 2 x alkaline batteries LR6 (AA) 1.5 V

Battery life (capacity ≥2.5 Ah) 3 years

Frequency 868 MHz (bidirectional)

Range typically 30 m inside buildings

Protocol KNX RF compatible

Sensing element NTC 10 kOhm

Measuring range 0…50 °C

Time constant 20 minutes

Type segment LCD

Resolution 0.1 °C

conformity to

EEC directive

- Immunity

- Emissions

Low-voltage directive

- Electrical safety

RTTE Radio & Telecom. Equipment

Radio communication

89/336/EC

- EN 61000-6-1/2

- EN 61000-6-3/4

73/23/EC

- EN 60730-1

99/5/EEC

- EN 300220-1, EN 300220-3, EN 301489-3

Installation

Note

Commissioning

Maintenance /

battery change

Disposal

Power supply

Temperature sensor

Display

Standards

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Building Technologies Room unit QAW910 CE1N2703en

HVAC Products 11.07.2006

Safety class III to EN 60730

Housing IP401) to EN 60529

Degree of pollution 2 to EN 60730

refer to “Dimensions”

Unit complete with accessories 0.280 kg

plastic ASA+PC

white NCS S 0502-G

operation

IEC-60721-3-3

transport

EN-60721-3-2

storage

EN-60721-3-1

Climatic conditions class 3K5 class 2K3 class 1K3

Temperature 0…+50 °C -25…+70 °C -20…+65 °C

Humidity 5…95 % r.h.

(noncondensing) <95 % r.h. 5…95 % r.h.

Mechanical conditions class 3M2 class 2M2 class 1M2

Elevation above sea level min. 700 hPa, corresponding to max.

3,000 m above sea level

1) Completely mounted

Dimensions

Dimensions in mm

23,6

130

122

2703M02

20,4

28 28

2828

3030

2703M01

42 42

4,2

4288

30 30

Protection

Dimensions

Weight

Housing material

Housing color

Environmental

conditions

Subject to change

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