6 720 817 986 (2015/07)
HPC 400
22 | Working with the main menu
5.3.5 DHW alternating operation settings
In DHW alternating operation, DHW and heating have equal
priority and alternate based on time. A heat requirement from
the heating system is not taken into account while DHW heating
is active, and vice versa.
If DHW alternating operation is not active, DHW heating has
priority and interrupts the heat requirement of the heating
system, if necessary.
Menu:
DHW alternating operation
5.3.6 Settings for DHW circulation
A DHW circulation pump circulates DHW between the DHW
heater and the draw-off point (e.g. water tap). This makes DHW
available at the draw-off point more quickly.
This menu is only available for systems with DHW circulation
pump.
Menu:
Circulation
1)
Settings can be made determining when and how often the
DHW circulation pump is activated.
The following table shows you how to adapt the settings for DHW circulation.
Menu item
description
DHW altern.
oper. on
In the event of a simultaneous heat energy
demand, the system will alternate between
DHW heating and heating mode based on the
times set under
DHW priority for
and
Prioritise heating for
.
DHW priority
for
Duration of DHW heating for
DHW altern.
oper. on
.
Prioritise
heating for
Duration of heating mode for
DHW altern.
oper. on
.
Table 22 DHW alternating operation settings
1) Not available if Sweden or Finland is set as the country (for
the contractor only). In these countries the DHW
circulation pump will run continuously without time
control.
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.
•
Circulation can be linked to the time
program for DHW heating (
As hot water
system
).
•
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 23 Settings for the circulation
Operating the appliance
Result
▶ If the standard display is active, press the menu key briefly to open or close the main
menu.
▶ Turn the selector to highlight
DHW
and press the selector.
▶ Turn the selector to highlight
Circulation
and press the selector.
The
Operating mode
menu item is highlighted.
▶ Press the selector.
▶ Turn the selector to highlight
As hot water system
and press the selector.
The user interface operates with the modified settings. The DHW circulation pump is
only in operation when DHW heating is active.
Table 24 Adapting circulation settings
6 720 811 136-29.1O
ARUN-TWIN.
data in mm.
500, 600, 750, 900
1194
1754
2154
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Содержание HPC 400
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