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Siemens
Synco™ living Operating instructions
CE1B2707en
Building Technologies
Central apartment unit QAX910
23.08.2008
Summer operation of heating
Select the point in time 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.
In the case of summer changeover via the external switch, this pa-
rameter has no impact (hidden).
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 tempera-
ture heating limit is attained or the date (beginning of summer,
end of summer, refer to page 30) is reached.
Winter
Continuous winter operation
Summer
Continuous summer operation
Factory setting
Auto
Your setting
Auto
Winter
Summer
State of winter operation / summer operation
The current operating state of the heating system (summer / winter operation)
can be queried:
Main menu > Apartment > Summer operation > State:
Beginning of summer / end of summer
From the beginning to the end of summer, the heating system maintains
summer operation, provided heating mode has been set to ”Auto“ (refer to
page 30) and no other changeover criterion (e.g. outside temperature heating
limit) has become active.
Main menu > Apartment > Summer operation > Summer start:
Main menu > Apartment > Summer operation > Summer end:
Summer start
Summer end
Factory setting
01.01. (inactive) 01.01.
(inactive)
Your setting
If the date settings for the beginning and the end of summer coincide,
there is no date-dependent changeover to summer operation.
