Technical Data - Siemens Climatix POL822 Instruction

Technical data

Supply voltage Operating voltage
the room unit is supplied from the
connected controller via 2-wire
interface (SELV, extra low voltage
according to HD384)
Power consumption (from the
controller)
Operating conditions Temperature sensor
Measuring element
Measuring range
Response
Accuracy (5 ... 30 °C)
Accuracy (25 °C)
Display Type
Display function
Interface Type of interface between the
controller and the room unit
Voltage signal, logic 0
Voltage signal, logic 1
Maximum number of controllers
Baud rate
Cable connection Connection terminals (screw terminals) Solid or stranded conductors
Cable type
Max. distance between two units
Max. total busbar length
Degree of cover Protection according to EN 60529
protection
Protection class Protection class
Ambient conditions IEC 721-3
Ambient air
Temperature
Humidity
Mechanical conditions
Electromagnetic compatibility
Industry standards
Immunity for residential, commercial
and light-industrial environments
Emission standard for residential,
commercial and light-industrial
environments
CE conformity
Siemens room unit QAA822
DC 12...15 V
Max. 0.22 VA
NTC resistance sensor
0...40 °C
 10 min
 1.0 K
 0.5 K
LCD
- Requirement adjustment
- Operating mode selection
- Manually selected fan speed
- Control sequence
- Time and weekday
- Parameter setting (only when selected)
2-wire interface connection
< 5 V
> 7 V
8
4.8 kbps
0.8...2.5 mm2
2-wire, twisted pair, unshielded
75 m
125 m
IP 30
III
Operation Transport
class 3K3 class 2K3
+ 5...40 °C – 25...70 °C
< 85% r.h. < 93% r.h.
class 3M1 class 2M2
EN 61000-6-1:2001
EN 61000-6-3:2001+A11:2004
Building Technologies
10 / 12