Siemens QAX34.1 User Manual

Use
CA2N1645en_02
30 Jun 2009
DESIGO™ RX
Room unit with PPS2
interface
for use with: – devices of the ranges DESIGO RXC, RXB, RXL, and RXA (PPS2)
– DESIGO PX Automation stations
– devices with a PPS2 interface

Room temperature measurement

Rocker switch for adjustment of the room temperature setpoint

Rocker switch for control mode selection (
the fan in fan-coil systems (up to 3 speeds)

PPS2 interface to controller

LCD with room temperature and control mode display

Socket for commissioning and service tool or service terminal
The room unit is used in rooms controlled by an individual room control system, to mea-
sure the room temperature and for operation of the room controller. The functions of the
Lcd Display are determined by the controller. If manual fan-speed control is enabled,
the room unit is suitable for control of a fan-coil system.
It can also be used in conjunction with a DESIGO PXC... automation station
The room unit incorporates a socket for a commissioning and service tool or service
terminal. This tool socket provides access via the PPS2 interface or via a bus system
(e.g. L W ® bus) to the connected individual room controller.
ON ORKS
1) If room units QAX32.1, QAX33.1, QAX34.1, or QAX84.1 are used in conjunction with a PXC auto-
mation station, the room unit will show the request of the user and not the effective state.
1
QAX34.1
1)
/ Auto) and manual control of
Building Technologies
645
1)
.