Operation Manual

6 720 645 349 (2010/09)
34 | Adjusting the MAIN MENU
6.4 DHW program
Main menu: Domestic hot water
For menu structure and setting ranges Æ page 28 .
6.4.1 DHW program operating modes
Menu: Domestic hot water > DHW and DHW
circulation pump
With this menu you can optionally
B activate your individual DHW program
-or-
B or combine the DHW program with your heating
program. That is useful if you frequently switch
between different heating programs. The DHW
program is then automatically adapted to suit.
As heating programme (Automatic mode
together with the heating program):
• With DHW cylinder:
– In accordance with the DHW temperature
selected under Cylinder temp at heating
level Comf.
1)
, if the heating system
operates in Comfort mode or switches
to Comfort mode within the next hour.
– Otherwise according to the DHW
temperature selected under Cylinder temp
at heating level Eco
1)
, if the heating
system operates in Economy mode.
– Otherwise DHW Frost (15 °C fixed value).
• With combi boiler:
– DHW On, if the heating system operates in
Comfort mode or has operated in
Comfort mode within the last hour.
– Otherwise DHW Off
• With DHW circulation pump for DHW cylinder:
– DHW circulation pump On and DHW
circulation pump starts according to
setting (Æ chapter 6.4.5 on page 37), if the
heating system operates in Comfort
mode.
– Otherwise DHW circulation pump Off.
Separate programmes (independent time
programs):
• Automatic changeover between DHW On
2)
/
Off
2)
or different DHW temperatures
3)
and
DHW circulation pump On / Off according to
programs entered.
• DHW circulation pump starts according to
setting (Æ chapter 6.4.5 on page 37).
Set the DHW temperature controller
on the heating appliance to the
maximum required DHW
temperature. If a DHW cylinder is
connected to the IPM downstream
of a low loss header, turn the flow
temperature controller on the
heating appliance fully clockwise.
1) Setting the DHW temperature
Æ chapter 6.4.5 on page 36.
2) DHW with combi boiler
3) DHW via cylinder