Siemens QAA24 User Manual

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Siemens Building Technologies Room temperature sensors QAA24, QAA25, QAA26, QAA27 CM1N1721E
HVAC Products 12.07.2003
• AEROGYR™ RWI65...
When using the QAA26 in connection with the RWI65…, the latter must be set to
the setpoint setting range "Heating". In that case, the setpoint of "Heating" on the
RWI65... must be set to 20 °C and additionally, the following must be set:
– Data point 44 to –15 K and data point 45 to + 15 K for RWI65.01
or
– Commissioning data point 9 to –15 K and commissioning data point 10 to +15 K
for RWI65.02
• When using the QAA27, the setpoint adjustment knob must be set to its centre posi-
tion. Additionally, the following must be set:
– Data point 44 to –4 °C and data point 45 to +5 °C for RWI65.01. The offset at data
point 50 must be corrected until data point 2 has value 0.
– Commissioning data point 9 to –15 °C and commissioning data point 10 to +15 °C
for RWI65.02. The offset at commissioning data point 15 must be corrected until
normal data point 2 has value 0.
• POLYGYR
®
RCM6..., RCE6... and RWF...
For averaging with two temperature sensors and a POLYGYR
®
controller, the sen-
sors need to be connected in series and the controller requires a setting range insert
AZW61.119-tx50.
If the QAA25 is used with a shift controller, the sensor's range (0...50 °C) is required
for calculating the authority
• CLASSIC RKN…
Setpoint adjustments via QAA27 is possible only with controllers RKN8-L, RKN88-L,
RKN-W and RKN88T.
Fitting and installation notes
Location: On an inner wall of the space to be heated or air conditioned. Not in reces-
ses, shelves, not behind curtains, not opposite or near heat sources.
The unit must not be exposed to direct solar radiation.
The end of the conduit at the sensor must be sealed to prevent false measurements
due to draughts through the conduit.
The permissible ambient conditions should be observed.
Installation instructions are printed on the packing.
Technical data
Range of use 0...50 °C
Setting range refer to «Type summary»
Max. permissible line lengths
and measured value errors refer to «Engineering notes»
Connection terminals for
cross-sectional areas of 2 x 1.5 mm
2
or 1 x 2.5 mm
2
Degree of protection IP 30 to EN 60 529
Safety class III to EN 60 730
Operation to IEC 721-3-3
Climatic conditions class 3K5
Temperature 0...50 °C
Humidity < 85 % r. h.
Transport to IEC 721-3-2
Climatic conditions class 2K3
Temperature −25...+ 65 °C
Humidity <95 % r. h.
Mechanical conditions class 2M2
conformity to EMC directive 89/336/EEC
General data
Connection terminals
Protective data
Environmental conditions
Norms and standards

Siemens QAA24 Specifications

General

Brand	Siemens
Model	QAA24
Category	Temperature Controller
Language	English