CM2N1640en_04
30 Jun 2009
Building Technologies
s
1
640
164
0P0
1
DESIGO
RX
Room unit with PPS2
interface
QAX34.3
For use with:
– Equipment from the RXC, RXB, RXL and RXA (PPS2) ranges
– DESIGO PX automation stations
1)
–
Devices
with
a
PPS2
interface
Measurement of the room temperature
Bias switch for adjustment of the room temperature setpoint
Bias switch for selection of the operating mode (
/
Auto) and for manual
control of the fan in fan-coil systems (up to 3 speeds)
LCD for display of room temperature and operating mode
PPS2 interface to the controller
Tool function for parameter setting and testing
2)
of RXB/RXL controllers
Application
The room unit is used in rooms controlled by an individual room control system, to
measure the room temperature and for operation of a room controller. The functions of
the LCD display are determined by the controller. If manual fan-speed control is
enabled, the room unit can be used to operate a fan-coil system.
It is also suitable for use in conjunction with a DESIGO PX automation station
1)
.
In conjunction with the RXB / RXL controllers (FC-10 and later, CC-02) the QAX34.3
room unit can also be used for parameter-setting and for the wiring test
2)
.
For details refer to the technical manual, CM110389 (RXB), CM110789 (RXL).
As a room unit:
As a tool:
1) In the QAX34.3 room unit the address (fixed to 1) cannot be changed.
If it is used with a PXC... automation station, the display shows the state requested
by the user (see page 3), rather than the actual state.
2) Wiring test only available with devices from index D (inside the housing, se page 2).