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Working with the main menu | 29
5.4.4 Settings for the DHW circulation
A DHW circulation pump circulates DHW between the water
heater and the draw-off point (e.g. water tap). This makes DHW
available at the draw-off point more quickly. Settings can be
made determining when, and how often, the DHW circulation
pump is activated.
This menu is only available for systems with DHW circulation
pump.
Menu: Circulation
Menu item Description
Operating
Mode
• Circulation can be switched off
permanently (Off). If this setting is set to
On, the pump will run according to the
settings under Start frequency. The
time program for the DHW circulation
pump is not active.
• The circulation can be linked to the time
program for DHW heating (As DHW
system I or II).
• With Own time program a time program
for the DHW circulation pump can be set
that works independently of the time
program for DHW.
Start
frequency
The start frequency determines how often
the DHW circulation pump goes into
operation for three minutes at a time every
hour (1 x 3 minutes/h ... 6 x 3 minutes/h) or
if it is constantly in operation. Whatever the
case, circulation is only active during the
times set in the time program.
My DHW
circltn time
prog.
6 switching times can be set for each day or
group of days. The DHW circulation pump
can be switched on or off at each switching
time. The minimum duration of a time slot
between two switching times is 15 minutes.
Table 25 Settings for the circulation
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