Operating Instructions

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Siemens RXB (KNX) Applications library CLC and RAD description of functions for CC-02 CM110384en_04
Building Technologies Room operating modes 21 Sep 2010
Existing Effective
room op. mode
Room unit
display
Manual operation of
/Auto button
New Effective room
operating mode
Comfort Auto

Precomfort
if
Effective occupancy
= Occupied.
Economy
if
Effective occupancy
= Unoccupied.
Precomfort  Auto Comfort.
Economy  Auto Comfort for Temporary
Comfort period
1)
.
Protection  Auto Protection, unchanged.
Key:
 Auto means: "changes to Auto ".
1)
Comfort mode is active for the predefined Temporary Comfort period (see page
103). The room controller then returns to
Economy.
5.6.4 Example for stand-alone
The example below shows how local influences interact to affect the room operating
mode.
 Window contacts are installed in all rooms.
If the window is opened (1), the room operating mode changes to Protection and the
room unit is switched again to
.
 Room 1 has a room unit.
As no presence detector is connected, the basic room operating mode is
Precomfort
and the timer (Temporary Comfort mode time, see page 103) is thus not available.
The room unit allo
ws for switching between
Precomfort and Comfort (2).
 Room 2 has a room unit and a presence detector.
If unoccupied, the basic room operating mode is
Economy; if occupied, the room
operating mode changes to
Comfort (3) and the room unit is set to Auto.
The room unit allows for switching between
Comfort and Precomfort (2).
 Room 3: To force the basic room operating mode Economy, a presence detector in
state
unoccupied is simulated at an open digital input (occupied = contact closed,
see page 102).
The timer is available from
Economy.
The room has a room unit on which the timer is activated (Temporary Comfort
mode
period: see page 103). This is where the room operating mode is set to
Comfort (2); when the window is opened (3), after timer expiration (4), or after
pressing again the
/Auto button (5), the room operating mode returns to Economy.