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Siemens Building Technologies
Room temperature sensors QAA24, QAA25, QAA26, QAA27
CM1N1721E
HVAC Products
12.07.2003
Equipment combinations
Type reference
For use with systems/units
QAA24
All systems/units that are capable of acquiring and
handling LG-Ni 1000 signals, such as:
UNIGYR
®
/VISONIK
®
, via a measured value module (measu-
red value input for temperature sensors LG-Ni 1000);
Synco™200, Synco™700; AEROGYR™ RWI65...;
TEC™ RCE9...; POLYGYR
®
RCM6..., RCE6..., RWF...,
RWX... and RWC...; CLASSIC; DESIGO30
QAA25
Synco™200, Synco™700; POLYGYR
®
RCM6..., RCE6...,
RWF..., RWX... and RWC...
QAA26
UNIGYR
®
/VISONIK
®
, via a measured value module (measu-
red value input for temperature sensors LG-Ni 1000);
AEROGYR™ RWI65...; TEC™ RCE9...
QAA27
Synco™200, Synco™700; CLASSIC RKN…;
DESIGO30 RCK...IB and RCH...IB; AEROGYR™ RWI65...
Mechanical design
The units have been designed for wall mounting. They are suitable for use with most
commercially available recessed conduit boxes. The cables can be introduced from the
rear (concealed wiring) or from below or above (surface-run wires) through knock-out
openings.
The units consist of two major sections: Casing and baseplate. Both snap together but
can be detached again. The casing accommodates the temperature sensing element
and, depending on the type of unit, various setting and operating elements. The ba-
seplate carries the connecting terminals.
(only with QAA25, QAA26 and QAA27)
Front
Rear
1
2 3
17
21
Z01
°C
1
Setting knob for infinite setpoint adjustment
2
Pin for mechanical maximum limitation of setpoint setting range
3
Pin for mechanical minimum limitation of setpoint setting range
For the permissible lengths of lines and measured value errors, refer to «Basic
System Data» of the respective control system.
Engineering notes
For the permissible lengths of lines and measured value errors, refer to «Basic
System Data» of the respective control system.
•
UNIGYR
®
/VISONIK
®
When using the
QAA26
, both the temperature sensor and the setpoint setting unit
must be connected to a measured value input (B...) of the measured value module
(PTM1.2R1K).
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Setting and operating
elements
Legend
Disposal
