Operating Instructions

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Siemens Synco™ living CE1B2740en
Building Technologies Central apartment unit QAX9x3 13.12.2010
--- The operating mode contact has no influence on the apart-
ment operating mode.
Comfort
All rooms and ventilation maintain their respective Comfort
setpoints when the contact is closed.
Precomfort
All rooms and ventilation maintain their respective Precom-
fort setpoints when the contact is closed.
Economy
All rooms and ventilation maintain their respective Economy
setpoints when the contact is closed.
Protection
All rooms and ventilation maintain their respective Protection
setpoints when the contact is closed. (factory setting)
Summer operation of heating
Select the when and if your heating system should switch to summer mode.
In summer mode, all room operating modes switch to Protection, the valves
travel to the position defined for summer operation and DHW heating switches
to the electric immersion heater, if installed.
This parameter has no impact (hidden) in case of summer changeover
via external switch.
Input function “Summer operation“ must be appropriately configured
when commissioning the plant.
Main menu > Apartment > Summer operation > Preselection:
Auto Automatic summer/winter changeover when outside tem-
perature heating limit is exceeded or the date (beginning/end
of summer, see page 34) is reached (factory setting).
Winter Continuous winter operation.
Summer Continuous summer operation.
State of winter/summer operation
The current operating state of the heating system (summer/winter operation)
can be queried:
Main menu > Apartment > Summer operation > State:
Start/end of summer
From the beginning to the end of summer, the heating system maintains
summer operation, provided summer operation preset is set to ”Auto“ (see
page 34) and no other changeover criterion (e.g. outside temperatu
re heating
limit) is active.
Main menu > Apartment > Summer operation > Summer start:
Factory setting 01.01. (inactive)