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Timer to extended presence or absence
The Comfort and Economy modes can be temporarily extended by 0.5 to 9.5 hours using the timer.
1. To set the timer, press and hold the operating mode button.
While holding the button, turn the rotary knob clockwise or counterclockwise as required.
a) Turn the rotary knob clockwise to extend Comfort mode.
Display:
0...+9:30
b) Turn the rotary knob counterclockwise to extend Economy mode.
Display:
0...–9:30
2. Release the operating mode button and the mode is temporarily changed, indicated by
•
After the temporary timer has elapsed, the thermostat will resume operation in the operating mode
according to schedule via bus (if available). Without schedule:
– when extended Comfort mode ends
new operating mode = Economy
– when extended Economy mode ends new operating mode = Comfort
•
If Economy mode cannot be selected via the operating mode button (P02 ≠ 2), Protection mode will
be used for extended absence instead.
•
The temporary timer function is aborted whenever a new setting is made.
Temporary timer to extend the Comfort mode
When the operating mode is Economy (commanded by schedule via KNX or by en external signal. e.g.
keycard), it can be set back to Comfort temporarily by pressing the operating mode button.
The
symbol will appear.
Pressing the operating mode button again will stop the timer.
This function is only available when parameter P02 = 1. Duration: * P68 = 0...360 min, factory setting = 0 min.
* Needs to be configured by your HVAC installer.
Reminder clean filter and display of external faults
These fault messages tell you an external fault has occurred *:
AL1 *
AL1 : _______________________
AL3 *
* Needs to be configured by your HVAC installer
Indoor Air Quality (IAQ) function
The Indoor Air Quality (IAQ) function is used for air quality control in VAV applications. The function is
achieved by controlling the damp valve position according to the CO2 level of the indoor air as well as
the temperature.
The thermostat monitors the CO2 level via KNX or IAQ sensors located in the room or in the extract air
duct. If the CO2 setpoint value is exceeded, the thermostat opens the valve in accordance with the
minimum position, and increases the openness slowly if the CO2 level continues rising. When the CO2
level reaches the predefined maximum value, the thermostat opens the valve to the maximum position
until the CO2 level drops.
Note that the valve position is also controlled according to the temperature. It depends on which is higher, the
temperature demand signal or the CO2 level demand signal.
Button lock
•
If the button lock function is enabled (parameter P14 = 2), then pressing the
right button for 3 seconds will lock or unlock the buttons respectively.
Locked buttons are indicated with the key symbol
•
If "Auto lock" is configured (P14 = 1), the thermostat will automatically lock the
buttons 10 seconds after the last adjustment.
Commissioning (by qualified HVAC installer)
To adapt the thermostat to your system and optimize the control performance, a number of control
parameters can be adjusted. This can be done during operation, either via the buttons on the thermo-
stat or via a commissioning tool.
Control parameters
If you wish to change control parameters, proceed as follows:
1. Press left and right buttons simultaneously for at least 3 seconds.
2. Release them and, within 2 seconds, press the right button again for 3 seconds.
The display will show P01.
3. Select the required parameter by turning the rotary knob.
4. Press button
(OK). The current value of the selected parameter starts blinking and can be
changed by turning the rotary knob.
5. Press button
(OK) to confirm the adjusted value, or
If you wish to adjust additional parameters, repeat steps 3 through 5, or press
parameter setting mode.
Parameter list
No.
Description
Default value
P01
Control sequence ***
1 = cooling only
P02
Mode selection via operating mode
1
button
P04
Selection of °C or °F
0 = °C
P05
Sensor calibration
0.0 k
P06
Standard temperature display
0 = Room temp.
P07
Additional user information
0 = No display
P08
Comfort basic setpoint
21 °C
P09
Minimum setpoint limitation in
5 °C
Comfort mode
P10
Maximum setpoint limitation in
35 °C
Comfort mode
P11
Setpoint for heating in Economy mode
15 °C
(WheatEconomy)
P12
Setpoint for cooling in Economy mode
30 °C
(WcoolEconomy)
P14
Button lock
0 = Disabled
P19
CO2 setpoint
1000 ppm
P20
CO2 XP
400 ppm
**
When no time schedule via KNX exists, then Auto is equal to Comfort.
*** Not supported with all configurations.
All temperature settings can be made in increments of 0.5 °C.
Please record all changes you make!
symbol.
AL3 : __________________________
(Esc) to cancel the change.
(Esc) to leave the
Setting range
Adj.
0 = Heating only
1 = Cooling only
2 = H/C changeover, manual
3 = H/C changeover, automatic
1 = Auto** / Comfort / Protection
2 = Auto** / Comfort / Economy /
Protection
0 = °C
1 = °F
-3...+3°C
0 = Room temperature
1 = Setpoint
0 = No display
1 = Room Temperature in °C / °F
2 = Outside temperature (via bus)
3 = Time of day (12h, via bus)
4 = Time of day (24h, via bus)
6 = CO2 ppm
7 = CO2 symbols
5 ... 40 °C
5 ... 40 °C
5 ... 40 °C
OFF, 5 °C...WcoolEconomy
OFF, WheatEconomy...40 °C
0 = Disabled
1 = Automatic
2 = Manual
0 = OFF
0... 5000 ppm
10... 2000 ppm
Siemens Building Technologies
Subject to change
A6V10733816
9 Dec 2015
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