User Manual

ManualsBrandsSiemens ManualsBuilding automationSynco – Application Guide Combination of the devices to a system

If the room occupancy times of the various geographical zones are identical, a time

switch can be defined as the master. Then, the other controllers as time switch slaves

adopt the occupancy times from the master.

Setting the geographical zone with identical room occupancy times but different

operating modes.

If 2 ventilation plants or 1 heating circuit and 1 ventilation plant supply the same

rooms, they also have the same geographical zone. The 2 plants acquire the same

room temperature and use the same room occupancy schedule (room operating mode

is the same). If the room operating mode is changed via the presence button on the

room unit (e.g. on the QAW740), the room control master adopts the change and for-

wards it to the room control slave. In the case of a room control combination of heating

circuit and ventilation plant, the ventilation plant always provides the function of the

room control master.

Setting the geographical zone with identical room operating modes.

It can be selected whether or not the demand for heat or cooling energy shall be for-

warded to the heat or refrigeration source. For example, a refrigeration machine is put

into operation only if the evaluated demand exceeds an adjustable level (path: … >

Settings > Refrigeration demand).

The demand for heat or cooling energy can also be forwarded via a relay or a DC

0…10 V signal (path: … > Commissioning > Extra configuration > Heat demand /

Refrigeration demand).

• This document only describes the settings for communication. For the configuration

and parameter settings to be made on the individual devices, refer to the respective

application sheets

• When preparing the settings for communication, we recommend to make use of the

"Synco

Planning and Commissioning Report C3127"

Geographical zone

Heat demand /

refrigeration

demand

Notes on planning

RM..

Slave

Master

3150Z07en

Time switch

Ventilation 1

Heating circuit 2

Geogr zone = 1

Geogr zone = ---

TS slave (Apartm.) = ---

TS slave (Apartm.) = 1

QAW740

RM..

3150Z08en

Geogr zone = 5

Room unit

Room operating mode Room operating mode

Geogr zone = 5 Geogr zone = 5

Ventilation 1

Room control comb. =

Master

Room control comb. =

Slave internal setpoints

Heating circuit 1