Siemens DESIGO RX QAX33.1 User Manual

CA2N1642en_02
30 Jun 2009
Building Technologies
1
642
DESIGO™ RX
Room unit with PPS2
interface
QAX33.1
for use with: – devices of the ranges DESIGO RXC, RXB, RXL, and RXA (PPS2)
– DESIGO PX Automation stations
1)
– devices with a PPS2 interface
 Room temperature measurement
 Room temperature setpoint adjuster
 Rocker switch for control mode selection (
/ Auto) and manual control of
the fan in fan-coil systems (up to 3 speeds)
 PPS2 interface to controller
 Socket for commissioning and service tool or service terminal
Use
The room unit is used in rooms controlled by an individual room control system, to mea-
sure the room temperature and for operation of a room controller. The QAX33.1 is typi-
cally used in conjunction with a fan-coil system (for fan control).
It can also be used in conjunction with a DESIGO PXC… automation station
1)
.
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
ONWORKS® bus) to the connected individual room controller.
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.

Siemens DESIGO RX QAX33.1 Specifications

General

Power Supply	24 V AC/DC
Degree of Protection	IP30
Protection Class	III
Operating Voltage	24 V AC/DC
Power Consumption	3 VA
Analog Outputs	2
Operating Temperature	0 to 50 °C

Summary

Room unit with PPS2 interface

Use

Purpose of the room unit in controlling room temperature and fan-coil systems.

Features

Key functions like temperature measurement, setpoint adjustment, fan control, and interface.

Ordering and Equipment Combinations

Ordering Example

Example of how to specify quantity, product name, and type code for ordering.

Mechanical Design and Operator Controls

Operator Controls and Indication

Explanation of the dial, LEDs, and rocker switch for operation and status indication.

Configuration, Disposal, and Engineering Notes

Address Plugs

How address plugs are used to set addresses for multiple room units.

Mounting Instructions

Instructions and recommendations for mounting the room unit in various locations and conditions.

Installation, Commissioning, and Technical Data

Commissioning Notes

Information on the sequence of events during device start-up and readiness for communication.

Technical Specifications

Key technical specifications including voltage, power, sensor, interfaces, and protection standards.

Standards, Environmental, and Connection Details

Connection Terminals and Tool Socket

Details the terminal layout for PPS2 interface, supply voltage, and the RJ45 tool socket.

Connection Diagram and Dimensions

Connection Diagram

Illustrates a typical connection diagram for the room unit with a DESIGO RXC room controller.