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Siemens
RDU340… Basic Documentation
CE1P3078en
Building Technologies
Functions
2014-11-03
4.2 Operating
modes
Select the controller's operating mode via operating mode button
on the
controller or operating mode input (e.g. keycard occupancy sensor, when X1 or X2
set to 3 (P38, P40)). A corresponding setpoint is used to maintain the room
temperature at the desired level depending on the active operating mode. The
following operating modes are available:
In Comfort mode, the controller maintains the setpoint which can be adjusted via
the
+/-
buttons.
Energy Saving mode helps save energy. Select it by pressing the operating mode
button
if parameter P02 is set accordingly, or if the external operating mode
switchover contact is active (e.g. window contact).
If the external operating mode switchover contact is active, user operations are
ineffective and “OFF” is displayed. Control will then be according to energy saving
setpoints (P11 and P12).
In Standby mode, the system is
– protected against frost (factory setting
8 °C
, can be disabled or changed via P65).
– protected against overheating (factory setting
OFF
, can be enabled or changed
via P66)
Comfort mode
Energy Saving
Note
Standby
/Protection mode
