B2812en
4 319 2285 0 g
07.05.2013
PROG
SET
End
Start
Heating period 2
End
Start
Heating period 3
Nominal temperature
Reduced temperature
Seven-day block
End
Start
Heating period 1
°C
°C
1-7
1...7
Individual day
Operating Instructions
QAW20
Operating elements
°C
AUTO
23
12
Z
02
5
1
3
2
4
6
7
8
9
1 Display
2 Display presence button
3 Info
button
4 Operating mode button
automatic mode
5 Operating mode button
manual operation
6 Operating mode button
standby
7 Cover
8 Temperature setting knob
9 Presence
button
Display
9
2812Z01
0
4
8
12
16
20
24
15
13
10
11
12
14
1
2
3
6
7
8
5
4
1 Digital display, clock
2 Units
3 Time bar heating program
4 Central
setback
5 Display presence button
6 Outside
temperature
7 Room
temperature
8 Airing
detection
9 Holiday
function
10 Operating mode
11 Meter or program line
12 Heat cost allocator
13 Water meter
14 Gas meter
15 Electricity meter
Operation
During operation, the unit cover must be closed!
Selecting the operating mode
2812Z
10
AUTO
Press the required operating mode button.
The display will show your choice as
.
Automatic mode
The heating system operates automatically according to the
selected heating program. The program can be temporarily
overridden by pressing the presence button.
Manual operation
The heating system is operated manually, depending on the
choice made with the presence button.
Standby
The room unit is switched off, but d.h.w. heating and frost pro-
tection are ensured.
Info button
28
1
2Z
11
AUTO
Every time the Info button is pressed, the
values listed below will be displayed in suc-
cessive order.
The room unit continues to operate, inde-
pendent of the selected display.
Time of day, room temperature
Weekday, time of day
Outside temperature
*
%
Heat consumption trend
Heat consumption of the current day compared to that of
the previous day at the same full hour. On the first heating
day of each heating season, the display will show
200 %.
Current meter readings:
Heating costs
Domestic hot water
*
Gas
*
Electricity
*
Other meters
*
* Display only if the relevant meters or sensors are connected.
Do not mix up current meter readings with set day values!
Temperature readjustments
°C
If the temperature in your apartment is too high or too low, you
can readjust the nominal room temperature by turning the set-
ting knob.
Turning the knob in the dir increases the nominal
room temperature by about 1 °C per graduation.
Turning the knob in the direction – decreases the nominal
room temperature by about 1 °C per graduation.
Before making further readjustments, wait some time, allowing the
room temperature to adapt.
With the temperature setting knob, you only readjust the nominal room
temperature. The reduced room temperature remains unchanged.
Presence button
If you do not use your rooms for longer periods of time, you can reduce
the room temperature by pressing the presence button, thus saving heat-
ing energy. When your rooms are occupied again, press the presence but-
ton again to provide heating.
The choice made is shown on the display:
Heating to the nominal temperature =
rooms occupied
Heating to the reduced temperature =
rooms unoccupied
Central temperature setback through the central unit
The choice made is
continuously active in manual operation,
active in the automatic mode only to the next switching action of
the heating program.
