Siemens QAX850 User Manual

CE1N2722en
28.08.2007
Building Technologies
HVAC Products
2
722
Master room unit
QAX850
for RRV… controllers
Multifunctional, digital room unit for installer and end-user interface with RRV…
controllers.
2 wire bus connection
Use
Room unit in combination with an RRV… controller for HVAC plants in:
• Residential apartments
• Residential single house
• Autonomous light commercial applications
For use with RRV… controllers in air based plants including heating, cooling and
ventilation (HVAC) equipment. Suitable for Standard, Duo-zone, Duo-switch and Multi-
zone applications.
Functions
• Remote control and monitoring of an RRV… controller
• Parameter adjustments by installer
• Room temperature measurement
• Time clock operation
• Comfort temperature setpoint adjustment
• Energy saving temperature setpoints adjustment
• Auto timer selection
• Fan speed selection
• Zone selection and settings (only for RRV controllers with zone outputs)
• Display of operating mode, temperature, time, fan speed and zone values.
Use
A
pplication
Primary functions
Operator functions

Siemens QAX850 Specifications

General

Output Signal	DC 0…10 V
Operating Voltage	DC 24 V
Output Voltage	DC 0...10 V
Number of Channels	1
Protection Class	IP30
IP rating	IP30
Power Supply	DC 24 V