User Manual

105 / 124
Siemens Synco™ living CE1C2707en
Building Technologies Function settings 23.08.2008
DHW priority
With DHW priority, preference can be given to DHW storage tank charging by
reducing the amount of heat delivered to the heating circuits.
No priority During DHW heating, there is no restriction with regard
to the amount of heat delivered to the heating circuits.
The highest temperature request (space heating or DHW)
is forwarded to the heat demand controller.
Absolute
priority
During DHW heating, the heating circuits are not allowed
to draw any heat.
The temperature request for DHW charging is forwarded
to the heat demand controller.
Main menu > DHW > Settings > Priority:
Factory setting Absolute
Your setting  None (parallel)
 Absolute
In the case of DHW heating with a diverting valve, set the DHW priority
to "Absolute".
Switching differential
The switching differential is used to control DHW charging. Charging is en-
abled when the DHW temperature drops below the DHW setpoint by the
amount of the switching differential (1..20 K) set here. Charging is stopped as
soon as the DHW setpoint is reached again.
Main menu > DHW > Settings > Switching diff:
Factory setting 5 K
Your setting
Charging time max
To prevent that – due to DHW priority – the heating circuit is restricted or even
locked for longer periods of time, “DHW charging with absolute priority“ can be
limited for a certain period of time (5..250 min).
With setting “---“, DHW charging takes place with no limitation of the
charging time.
Main menu > DHW > Settings > Charging time max:
Factory setting 60 min
Your setting