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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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
1
2
3
4
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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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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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
RF
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
84
1
23,6
76
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
©2006 Siemens Switzerland Ltd
Subject to change
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