User Manual
Home automation system
Synco™ living
Central apartment unit QAX9..
396
Siemens Switzerland Ltd www.siemens.com/gamma 2020
Smart Infrastructure
14
Central apartment unit with energy consumption data collection
The central apartment unit serves as an operator and display unit for an apartment. It manages
individual room control (heating/cooling) of up to 12 rooms, comfort ventilation, precontrol and DHW
control, control of air conditioning equipment, and acquires the consumption data of heat, water,
electricity and gas. Additional functions include the control of lights and blinds. Door and window
contacts plus smoke detectors and water monitors can be integrated for monitoring purposes.
Management of heating and cooling control for one apartment
Suited for heating and cooling plants with central distribution (e.g. underfloor heating) and radiators
with decentral connections
Selection of operating mode, timer and holidays / special day function for the apartment
Independent time switches and operating modes for 12 rooms
Flow temperature control of 2 independent room groups including limitation (min. / max.) and
maintained return temperature (high / low)
Increase of economy room temperature setpoint and minimum flow temperature setpoint depending
on the composite outside temperature
Collection of heat / cooling requests from the individual rooms and forwarding the requests to the
heat/cooling sources via wired bus, heat/cooling demand relay or DC 0...10 V output to the RRV912 or
RRV934
Absence function (heating, cooling, ventilation, lights) with simulation of presence (lights)
DHW heating with time switch and selection of operating mode
Management of 3-stage ventilation plant via RRV934 multicontroller, incl. night cooling
Control of air conditioners (split units) via universal outputs (locally and RRV91x) or via S-Mode (KNX
TP)
Collection of meter data (heat / cool, electricity, water, gas) to support automated meter reading &
billing
Operation of lights and blinds via 4 softkeys, time switch and events
Monitoring door contacts, window contacts and smoke detectors
Display of meteorological data
Presentation of key data on info pages
Plain text output in bg, cs, de, dk, el, en, es, fi, fr, hr, hu, it, nl, no, pl, pt, ro, ru, sk, sl, sr, sv, tr
Remote access via Siemens web server OZW772.xx
Intuitive and simple control with Android or IOS App
Data sheet
N2740
Operating voltage
AC 230 V
Frequency
50 Hz
Power consumption
7 VA
Display
Full graphic backlit display
Communication
KNX RF-compatible, 868.3 MHz bidirectional (RF)
and KNX TP (wired bus)
Indoor wireless range
30 m
Universal inputs, number
1
Universal inputs
Digital 0/1
LG-Ni1000
Universal input, signal
Digital 0/1
LG-Ni1000
Relay outputs, number
1
Relay output, switching voltage
AC 24…230 V
Relay outputs, type
Normally open contact
Relay output, switching current
AC 0.02…2 (2) A
Mounting
For screw fixing
Degree of protection
IP20D
Dimensions (W x H x D)
230 x 130 x 29.7 mm
QAX913-9
Stock no.
Product no.
S55621-H126
QAX913-9
Manuals in several languages are available for download as PDF files from www.siemens.com/syncoliving-td