Siemens QAX910 Bedienungsanleitung

CE1N2707en

06.01.2009 Building Technologies

2707

Synco™ living

Central apartment unit QAX910

Series C

•Management of room control for one apartment including precontrol of

heating for 2 room groups

•Management of ventilation plant

•Management of air conditioners (e.g. split units)

•Selection of operating mode, timer and holidays / special day function for

the apartment

•Autonomous time switches and operating modes for 12 rooms

•Absence function (heating, cooling, ventilation, lights, blinds) with simula-

tion of presence (lights)

•Monitoring of windows and doors

•Summer operation with preselected valve position for cooling mode

•Display of meteorological data

•DHW heating with time switch and selection of operating mode

•Wireless communication with the devices of the Synco living,

GAMMA wave and Hager tebis TX ranges

•Switching groups with softkeys for the control of lights and blinds

•Choice of scenes for light and blind control

•Universal input and output

•Presentation of key data on Info pages

•Wireless (868 MHz, bidirectional) and wired connection for data transmis-

sion conforming to KNX standard

•Mains-powered AC 230 V

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Siemens Central apartment unit QAX910 CE1N2707en

Building Technologies 06.01.2009

Use

•Management of heating control for one apartment

•Increase of Economy room setpoint and of the minimum flow temperature set-

point as a function of the composite outside temperature

•Collection of heat requests from the individual rooms

•Generation of heat request signal and transmission to heat generation via wired

bus, heat demand relay, or DC 0…10 V output to the RRV912 or RRV934 heat-

ing circuit controller

•Suited for heating plant with central heat distribution (e.g. floor heating) and ra-

diators with decentralized connections

•Control of heating circuits with RRV912 / RRV918 heating circuit controllers and

SSA955 radiator control actuators

•Flow temperature control of 2 independent room groups with limitation function

(minimum / maximum)

•Maintained return temperature (high / low)

•Control of room group pumps via universal relay outputs

•Control of DHW pump / diverting valve via universal relay output. Acquisition of

DHW temperature via universal input

•Management of ventilation plant via RRV934 multi-controller

•Night cooling function (bypass function of HR)

•Control of air conditioners (split units) via the universal outputs (locally and

RRV91x) or S-Mode (KNX TP1)

•Release of cooling enable contacts per room depending on the composite out-

side temperature, the current HVAC level, the state of the windows, and a heat

request

•Monitoring of door contacts, window contacts and smoke detectors

•Operation of lights and blinds via softkeys, time switch and events

•Simulation of presence through random switching of lights combined with per-

manent ON of one or several light sources

•Generation, storage and retrieval of scenes

•Display of progression of outside temperature and atmospheric pressure over

the last 24 hours with the help of the QAC910 meteo sensor

•Display of open doors and windows

•Display of weather trend (sunny, cloudy, rainy)

•Remote access via Siemens OZW77x central communication units

Equipment combinations

The central apartment unit can be used in connection with the following RF prod-

ucts of the Siemens Synco living system and those of other suppliers of wireless

KNX products:

Description Product No. Documentation

Room unit QAW910 N2703en

Room temperature sensor QAA910 N2701en

Meteo sensor QAC910 N2702en

Heating circuit controller RRV912 N2705en

Heating circuit controller RRV918 N2706en

Multi-controller RRV934 N2709en

Radiator control actuator SSA955 N2700en

RF repeater ERF910 N2704en

RF adapter plug, switching KRF960-x N2718de

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Siemens Central apartment unit QAX910 CE1N2707en

Building Technologies 06.01.2009

Description Product No. Documentation

RF adapter plug, dimming KRF961-x N2719de

DELTA reflex smoke detector

with wave UNI M 255 smoke alarm module

GAMMA wave Siemens

wave AP260 door and window contacts GAMMA wave Siemens

Light and blind actuators GAMMA wave Siemens

Light and blind actuators tebis TX Funk Hager

The central apartment unit can be used in connection with the following wired pro-

ducts of the Siemens Synco 700 system:

Description Product No. Documentation

Synco 700 controls RM.. S3110

Central communication units OZW771

OZW775

N3117

N5663

Service tool OCI700.1 N5655

Also refer to “Acvatix Valves and Actuators Range overview Z-C00020403EN”.

Additional KNX TP1 devices can be integrated via S-Mode (refer to document

CE1Y3110en).

Description Product No. Documentation

Interface for air conditioners (split units) ZN1CL-IRSC ZENNiO

Ordering

When ordering, please give quantity, product name and product No.

The central apartment unit is supplied complete with Operating Instructions, Mount-

ing and Commissioning Instructions and fixing material.

QAX910 with accompanying documentation in the respective national language.

For example:

German: QAX910-DE

English: QAX910-EN

Functions

The central apartment unit manages space heating, ventilation and DHW heating

control of an apartment with up to 12 rooms.

In addition, it provides control of air conditioners (split units), light and blind actua-

tors and monitors light actuators, door and window contacts as well as smoke de-

tectors.

The QAX910 also serves as an operator and display unit for the apartment.

Scope of delivery

Order numbers

Main functions

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Siemens Central apartment unit QAX910 CE1N2707en

Building Technologies 06.01.2009

Specific functions for heating plants

The central apartment unit generates heat demand signals based on the collected

heat requests and forwards the signals to the controller for heat generation.

The heat demand signals can be delivered via the universal relay output (switch-

ing) or the DC 0…10 V output (modulating) of an RRV912 heating circuit controller

or RRV934 multi-controller.

The flow temperature is controlled via the RRV934 multi-controller. It is regulated

with the help of the heat demand signals. Also, minimum and maximum limitation

of the flow temperature can be provided. If the temperature request is invalid, flow

regulation will be deactivated and the controlling elements closed (no output). The

central apartment unit supports 2 room groups (e.g. floor heating and radiators)

which can be controlled independently of one another.

Return temperature limitation is adjustable, enabling it to be kept at a high or low

level. It is thus possible to prevent too hot water from returning to the heat source,

for example. Return temperature limitation is given priority over flow temperature

limitation. It acts on the mixing valve of the room group.

If a room unit and 1 or 2 room temperature sensors are assigned to a room, the

central apartment unit calculates the mean value and uses it for room temperature

control.

Several heating circuits connected to an RRV912 / RRV918 heating circuit control-

ler can be combined to one room and operated in parallel. In that case, the first

channel ensures room temperature control and, at the same time, controls the

other assigned channels.

Up to 6 SSA955 radiator control actuators can be combined to one room and oper-

ated in parallel.

In that case, the radiator control actuator connected first (lead controller) ensures

actual room control plus wireless control of the other assigned radiator control ac-

tuators (lag controllers).

Several heating circuits connected to a common heat distributor can be jointly con-

trolled as one zone. The zone valve (3-position) is controlled based on the room

temperature acquired by the room unit installed in the reference room and / or the

room temperature sensor.

The central apartment unit ensures release of the room group pumps. The pumps

can be connected either to the internal relay output or a relay output of one of the

RRV912 / RRV918 heating circuit controllers or the RRV934 multi-controller.

The QAX910 can trigger the antilime function at regular intervals, aimed at prevent-

ing valve plugs and pump impellers from seizing during longer off periods. The

function ensures that the valve actuators will travel to the fully open and then to the

fully closed position and that the pumps will be activated for short periods of time

(valve kick). Both frequency and time of day at which the function is performed can

be selected.

The antilime function acts either locally or on plant components connected to the

RRV912 / RRV918 heating circuit controller and the wireless SSA955 radiator con-

trol actuators.

Heat request

Flow temperature

control / limitation

Return temperature

limitation

Room unit / room

temperature sensor

Parallel operation

of heating circuit

controllers

Parallel operation

of radiator control

actuators

Zone control

Room group pumps

Antilime function

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Siemens Central apartment unit QAX910 CE1N2707en

Building Technologies 06.01.2009

The Economy room temperature setpoint is increased as a function of the compos-

ite outside temperature. Changeover is adjustable and helps prevent load peaks

when changing from Economy to Precomfort or Comfort for instance.

The minimum flow temperature setpoint is raised as a function of the composite

outside temperature, thus ensuring a minimum flow temperature for uncontrolled

rooms.

The central apartment unit triggers summer operation. Changeover can be accom-

plished as follows:

Manually, date-related, according to the attenuated outside temperature, via a digi-

tal input, or through active changeover to cooling mode.

The heating circuit valves connected to an RRV912 / RRV918 heating circuit con-

troller have the position 0% or 100% and the SSA955 radiator control actuators will

be driven to the preselected valve positions.

The QAX910 provides DHW control with the help of a specific DHW time switch.

DHW heating is either enabled or disabled based on the temperature acquired by

the DHW temperature sensor connected to the QAX910 or an RRV912 / RRV918 /

RRV934.

The signal for DHW charging or changeover is delivered either via the internal re-

lay output or the relay output of an RRV912 / RRV918 heating circuit controller or

RRV934 multi-controller. DHW charging can take place via diverting valve / charg-

ing pump and / or an electric immersion heater.

Specific functions for ventilation equipment and air conditioners

The QAX910 controls ventilation plant with a maximum of 3 stages via an RRV934

multi-controller. The ventilation stages can be controlled either manually, via a 7-

day program, indoor air quality sensor or humidity sensor. Ventilation can be influ-

enced by absence, the holiday function or an open window.

The following operation and control functions are available:

−The apartment timer activates apartment operating mode Comfort for an adjustable

period of time

−Forced ventilation activates the highest ventilation stage for a predefined period of

time

−In summer operation, cooler outside air passes through the HR bypass during the

periods of time night cooling is active

−Counting the number of operating hours for delivering a service message

−Release of kitchen exhaust hood via an open window to ensure sufficient amounts of

air are made available

−Display of active fireplace ventilation mode (external plant)

Each room can be assigned one cooling release contact for switching an air condi-

tioner (e.g. split unit).

Release can take place via the local relay contact of the central apartment unit, the

relay contacts of the RRV912 / RRV918 heating circuit controllers, the RRV934

multi-controller, the RF adapter plug KRF960-x, or via S-Mode.

By integrating the ZENNiO interface (S-Mode TP1), operating mode, setpoint and

release of the air conditioner (e.g. split unit) per room can be controlled via the

central apartment unit. Heating and cooling mode of the air conditioner can be

supported.

The air conditioner ensures autonomous room temperature control.

Outside temperature-

dependent night set-

back

Minimum flow

temperature setpoint

Summer operation

DHW charging /

DHW control

Ventilation

Release contact

for cooling

Air conditioner via

ZENNiO module

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Siemens Central apartment unit QAX910 CE1N2707en

Building Technologies 06.01.2009

Specific functions for monitoring and operation

The central apartment unit monitors the connected door and window contacts.

A monitoring delay time can be parameterized for the door / window contacts and,

in addition, a message delay time for the door contacts.

The opening of a monitored door / window contact can be used for triggering a

switching group (event-driven) and for generating an alarm message.

In addition, the door and window contacts are used for the window airing function.

As soon as a window monitored by a window contact is opened, the heating cir-

cuits of the respective room prevents their valves from opening further, even if the

room temperature drops for short periods of time. When an adjustable period of

time has elapsed, the room temperature drops to the level of Protection mode until

the window is closed again. Then, “normal“ control mode is resumed.

An open window can also impact operation of ventilation plant or an air conditioner.

This prevents unnecessary heat losses during the airing phase and subsequent

overheating.

The central apartment unit monitors the connected smoke detectors.

A responding smoke detector can be used for triggering a switching group and for

switching the ventilation plant (event-driven) and sets off an alarm in any case.

The central apartment unit acquires the outside temperature and atmospheric

pressure transmitted by the meteo sensor or via KNX-TP1.

The current measured values of atmospheric pressure and outside temperature, as

well as the trend of atmospheric pressure, can be displayed in the quiescent pic-

ture. The picture shows the atmospheric pressure changes over the last few hours,

indicated by an arrow.

In addition, the weather trend (sunny, cloudy, rainy) is ascertained based on the

change of atmospheric pressure and absolute pressure, and displayed in the qui-

escent picture.

The progression of outside temperature and atmospheric pressure over the last 24

hours can be called up via 2 Info pages.

Every connected lamp can be individually switched or dimmed via the central

apartment unit or external switches (transmitters).

In addition to manual operations, the light settings can be made via the internal

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

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

Suited are Siemens GAMMA wave and wireless Hager tebis KNX light actuators,

as well as KNX TP1 light actuators.

The central apartment unit or external switches (transmitters) can be used to adjust

the blinds in a stepwise fashion, or to fully raise or fully lower them by pressing a

button.

In addition to manual adjustments, the blinds can be set via the internal time switch

(time switch can "Always“ be processed or "Only if absent“), scenes or events (e.g.

twilight, absence).

Suited are Siemens GAMMA wave and Hager tebis blind actuators, as well as KNX

TP1 blind actuators.

Door and

window contacts

Smoke detectors

Weather station

Light control

Blind control

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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 (CO2sensor)

•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

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Siemens Central apartment unit QAX910 CE1N2707en

Building Technologies 06.01.2009

System-internal faults can be transmitted to external components via the fault out-

puts.

The central apartment unit is capable of communicating via a wireless bus (KNX

RF) or a wired bus (KNX TP1).

The OCI700 service tool can be connected to the service interface (RJ45) located

on the underside of the central apartment unit.

The individual RF components are connected to the central apartment unit by se-

lecting the room / switching group / function to which the new component shall be

assigned and then pressing the binding or function button on the respective system

component.

When connecting devices from the Hager tebis RF range, the TX100 configurator

is required (supplied by Hager).

To check the connections made, a list with all devices can be displayed for each

room. In addition, device lists with the smoke detectors, meteo sensors, switching

group relays and fault inputs and outputs are available.

Using the binding or multifunction buttons, a binding test can be triggered on the

individual devices. The central apartment unit indicates error-free connections both

optically and audibly.

The connected RF devices are monitored at certain intervals.

If the transmit signal is missing, the central apartment unit will display an error

message.

If radio communication between the central apartment unit and the system compo-

nents to be controlled is interrupted, control is no longer ensured.

If communication breaks down, the position of the actuators connected to an

RRV912 / RRV918 heating circuit controller or RRV934 multi-controller is main-

tained and can only be changed manually through mechanical action on the actua-

tors.

Using the built-in room temperature sensor, the SSA955 radiator control valves

continue to provide control, maintaining a room temperature setpoint of 21 °C.

The ventilation plant continues to operate at the current stage for another 30 min-

utes and then shuts down.

The RF adapter plugs can be switched via external buttons (GAMMA wave), hand-

held transmitters (GAMMA wave) or directly with the plug’s own function button.

When radio communication is reestablished, the system components will resume

normal control operation

In the event power supply to the central apartment unit is interrupted, control is no

longer ensured.

If there is a mains failure, the positions of the actuators connected to an RRV912 /

RRV918 heating circuit controller or RRV934 multi-controller are maintained and

can only be changed manually through mechanical action on the actuators.

Using the built-in room temperature sensor, the SSA955 radiator control valves

continue to provide control, maintaining a room temperature setpoint of 21 °C.

The ventilation plant continues to operate at the current stage for another 30 min-

utes and then shuts down. With the air conditioner, the equipment’s own remote

control can be used for operation.

The RF adapter plugs can be switched via external buttons (GAMMA wave), hand-

held transmitters (GAMMA wave) or directly with the plug’s own function button.

Communication

Service interface

Establishing the

wireless connections

Displaying the

wireless connections

Binding test

Monitoring devices

Radio communica-

tion failure

Mains failure

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Siemens Central apartment unit QAX910 CE1N2707en

Building Technologies 06.01.2009

When power is restored, the central apartment unit and its components will resume

normal control operation.

To facilitate fault tracing, the QAX910 delivers detailed error messages.

They are output as clear-text messages, thus simplifying the interpretation of mes-

sages by the user or the heating engineer.

Error messages can be used for triggering other events, such as optical or audible

alarms.

The last 10 error messages are saved as a history and can be individually re-

trieved.

The central apartment unit can be reset to its supply state via an operating line.

Application examples

2707H04

T T

M1 Room group pump

M2 DHW diverting valve

E Heating circuit

T Room unit and / or

room temperature sensor

Y Heating circuit valve (2-position) or

radiator control actuator SSA955

B DHW sensor

K Electric immersion heater

Error messages

Supply state

1 room group with

room temp. control

and DHW heating

without precontrol

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Siemens Central apartment unit QAX910 CE1N2707en

Building Technologies 06.01.2009

M1 DHW pump

M2 - M3 Room group pump

T Room unit and / or

Room temperature sensor

K Electric immersion heater

Y1 Radiator control actuator SSA955

Y2 Heating circuit valve (2-position)

B1 DHW sensor

B2 - B3 Flow temperature sensor

U1 Mixing valve for radiator, DC 0...10 V

U2 Mixing valve for floor heating, DC 0…10 V

ZUL

FOL

AUL

RRV934

Q1 Q2 Q3

IIIIII

Q1 - Q3 3-stage step selector of ventilation plant

X1 Indoor air quality sensor, DC 0...10 V

X2 Humidity sensor, DC 0...10 V

FOL Exhaust air

AUL Outside air

ZUL Supply air

ABL Extract air

2 room groups each with

flow temperature precon-

trol and DHW heating

Integration of a

ventilation plant

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