Dhw Priority; Switching Differential; Charging Time Max - Siemens Synco living QAX913 Mounting And Commissioning

Main menu > DHW > Legionella function > Legio prot period:
Guide value

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.
Main menu > DHW > Settings > Priority:
None
Absolute
In the case of DHW heating with a diverting valve, set the DHW prior-
ity 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

Charging time max

To prevent the heating circuit to be restricted or even locked for longer periods
of time by DHW priority, "DHW charging with absolute priority" can be limited
for a certain period of time (5..250 min).
Setting "---" charges DHW with no limitation of the charging time.
Main menu > DHW > Settings > Charging time max:
Factory setting
112 / 134
Siemens
Building Technologies
00.30 h.min
No priority (factory setting):
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.
5 K
60 min
Synco™ living
Function settings
CE1C2740en
13.12.2010