Siemens RDF400 User Manual

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Siemens RDF300…/RDF340.../RDF400… Basic Documentation CE1P3076en
Building Technologies 4BFunctions 28 Aug 2008
4.2 Operating modes
Select the controller's operating mode via operating mode button
on the control-
ler 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. The fan can be set to automatic or manual fan speed: Low, medium
or high.
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)
In Auto Timer mode
AUTO
, the controller automatically changes from Comfort to
Energy Saving mode as per the 8 preprogrammed timers. The display shows the
Auto Timer mode symbol
AUTO
along with the symbol for the current operating mode
(Comfort
or Economy ).
Automatic is the default fan speed in Auto Timer mode.
Comfort mode
Energy Saving
Note
Standby
/Protection mode
Auto Timer mode
AUTO
(only with RDF400...)

Siemens RDF400 Specifications

General

Brand	Siemens
Model	RDF400
Category	Temperature Controller
Language	English