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Operating modes
The following operating modes are available:
Normal mode
In Normal mode (ON), the controller displays the fan speed and air flow status.
OFF mode
In OFF mode, the controller is turned off.
Timer with delay Off mode
In timer with delay Off mode, the timer starts counting down according to the set hour when
parameter P28 is enabled. When the timer expires, the device automatically turns off.
1. Activation of timer with delay Off mode
When P28=1, press and hold
2. Setting the timer with delay Off mode
3. Cancellation of timer with delay Off mode
Cancel by setting the timer to 0 hour.
4. Viewing or editing of timer with delay Off mode
Operating mode setting upon power down
If the FAU is disconnected from AC 230 V power and reconnected, the unit returns to same
operating mode before powering down if P27=0. If P27=1, the unit is in OFF mode. If P27=2,
the unit resumes Normal mode (ON).
Disposal
Cyber security disclaimer
Siemens provides a portfolio of products, solutions, systems and services that includes secu-
rity functions that support the secure operation of plants, systems, machines and networks.
In the field of Building Technologies, this includes building automation and control, fire safe-
ty, security management as well as physical security systems. In order to protect plants, sys-
tems, machines and networks against cyber threats, it is necessary to implement – and con-
tinuously maintain – a holistic, state-of-the-art security concept. Siemens' portfolio only forms
one element of such a concept.
You are responsible for preventing unauthorized access to your plants, systems, machines
and networks which should only be connected to an enterprise network or the internet if and
10
Siemens
Smart Infrastructure
– A preset value (1h) is displayed after entering delay Off timer mode.
– Use the + or - button to change the time up to 23 hours with a 0.5 h increment or
decrement respectively.
– Press the
(✓) button to confirm the change. The device automatically exits delay
Off timer mode or press the
– Or press the
( ) button to exit delay Off timer mode without saving changes and
to return to Normal mode.
– Press and hold down
– Use the + or - button to change the time and press the
new value.
– The timer runs according to the new value.
The device is considered an electronic device for disposal in accordance
with the European Guidelines and may not be disposed of as domestic
garbage.
●
Dispose of the device through channels provided for this purpose.
●
Comply with all local and currently applicable laws and regulations.
for more than 3 seconds to enter delay Off timer mode.
(
) button to return to previous step.
for more than 3 seconds to view the remaining time.
(✓) button to confirm the
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2021-04-16
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