Data Sheet for Product
3/6
Siem ens Room unit QAW70 CE2N1637E
Building Technologies 2014-07-30
0 4 8 12 16 20 24
°
C
5
10
1
32
4
678
9
2312Z01
1 Digits, clock
2 Heating program
3 Units (°C)
4 Display occupancy button
5 Outside temperature
6 Room temperature
7 Holiday function
8 Operating mode
9 Line number
10 D.h.w. temperature
Technical design
The QAW70 features ergonomic and function-specific assignment of operation to 3
operating levels.
Operation by the end-user:
· Unit cover closed
· Operation via info button, operating mode buttons, occupancy button and setting
knob for setpoint readjustments
Programming by the end-user:
· Unit cover open
· Programming via the 4 programming buttons on operating lines 1…17
Service level:
· Unit cover open
· This level can only be accessed by pressing a certain combination of buttons. Pa-
rameterization / programming is made possible via 4 programming buttons on oper-
ating lines 51…58
Using the info button, the end-user can retrieve the following key data:
· Weekday and time of day
· Outside temperature
· Time of day and room temperature
The value selected last is maintained on the display.
Three buttons are used to select the 3 available operating modes:
· Automatic mode (change between the nominal room temperature and the reduced
temperature according to the time switch settings)
· Manual operation (nominal room temperature or reduced room temperature continu-
ously)
· Standby (frost / holiday temperature)
The occupancy button is used to switch from the nominal room temperature to the re-
duced room temperature, and vice versa.
The action depends on the selected operating mode.
Changeover is only temporary; after the next switching point of the heating program,
the controller will resume operation according to the settings made
Changeover is on a continuous basis until the button is pressed again
The temperature setting knob can be used to readjust the nominal room temperature
setpoint by ±3 K. If required, the setting knob‘s readjustment range can be mechanical-
ly limited.
The following setpoints can be entered on the unit:
· Nominal setpoint of the room temperature
· Reduced setpoint of the room temperature
· Setpoint of the d.h.w. temperature
Display
Operating levels
Info button
Operating modes
Occupancy button
Automatic mode
Manual operation
Setpoint readjustment
Setpoints