User Manual

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Siemens Building Technologies Room temperature sensors QAA1... CM1N1746en
HVAC Products 28.03.2002
Mounting notes
Mount the room temperature sensor on a vertical wall about 1.5 m above the floor.
Make sure that the sensor’s housing is not distorted due to the roughness of the wall
where it is mounted.
Avoid the following mounting locations:
− Above radiators
− Near windows and doors
− On surfaces subject to vibration or exposed to direct solar radiation
− On outer walls or walls near fireplaces
Do not mount the sensor in recesses or niches. Protect it from drip or splash water.
The sensor must be located such that room air can easily circulate through the
ventilation slots from bottom to top.
The unit is supplied together with mounting instructions.
Connection diagrams
Pt 100
12
1746G011746G02
GND OUT
UB
1746G03
UB
GND/OUT
Resistance characteristic Pt100 (DIN IEC 751, class B)
Temp. in °C −50 −40 −30 −20 −10 0 +10 +20 +25 +30
Widerst. in Ω 80.31 84.27 88.22 92.16 96.09 100.00 103.90 107.79 109.74 111.67
Temp. in °C +40 +50 +60 +70 +80 +90 +100 +110 +120
Widerst. in Ω 115.54 119.40 123.24 127.07 130.89 134.70 138.50 142.29 146.06
QAA100
QAA160 .
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QAA170