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Siemens Central apartment unit QAX910 CE1N2707en

Building Technologies 06.01.2009

The different blind positions (fully raised or fully lowered) and different light settings

(on, off, dimming state) can be saved as scenes and retrieved later.

In addition to manual retrieval, the scenes can also be called up via the internal

time switch (time switch can "Always“ be processed or "Only if absent“), presence

simulation or events (e.g. twilight, absence).

Device and system functions

Synco living has a number of inputs and outputs that can be used either via the

universal input / output of the central apartment unit (locally), the universal inputs /

outputs of the RRV912 / RRV918 heating circuit controllers or the RRV934 multi-

controller.

The inputs and outputs can be assigned the following functions:

Inputs

• Changeover of operating mode (apartment operating mode and / or DHW oper-

ating mode)

• Changeover to summer operation

• Heating / cooling changeover

• Flow and return temperature sensor

• Ventilation contact 1 and 2 (e.g. hygrostat)

• Fireplace mode

• Triggering the absence function

• Twilight function (e.g. by means of a twilight switch) for triggering a switching

group or for enabling presence simulation)

• Fault inputs 1 – 8

• DHW sensor

• Indoor air quality sensor (CO

sensor)

• Humidity sensor

Outputs

• Transmission of heat demand (switching)

• Transmission of heat demand (DC 0…10 V)

• Switching the room group pump 1 - 2

• Primary controller mixing valve 1 - 2

• Step switch

• HR bypass

• Release of kitchen exhaust hood

• Release of air conditioner 1 - 12

• Transmission of changeover to summer operation

• Status output (on / off) for reporting events that can be defined

• Window s/ door state output (on / off) for signaling open windows and doors

• DHW charging pump / DHW diverting valve

• Electric immersion heater

• Switching group relays 1 - 8

• Fault outputs 1 - 2

The central apartment unit has 8 fault inputs and 2 fault outputs which can be used

via the universal input / output of the QAX910 (locally), the universal inputs / out-

puts of the RRV912 / RRV918 heating circuit controllers or the RRV934 multi-

controller.

Faults of external system components, such as a faulty oil tank level switch, can be

transmitted to the central apartment unit via 8 fault inputs.

Scenes

Inputs and outputs

Fault inputs /

fault outputs