Operation with the user menu
Logamatic EMS – 6 720 801 386 2011/05
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5.5.2 Operating modes for DHW
You can set one of the following operating modes for DHW heating:
• Automatic (switching program). This can be either the switching program for central heating or
a specific DHW program (Æ page 38).
• Permanently ON (manual continuous mode). The DHW is permanently maintained at the set
temperature.
• Permanently OFF/ECO (manual night mode). You can use to start DHW heating when
needed (“Heating up DHW once“, Æ page 19).
5.5.3 Operating modes for DHW circulation
The DHW circulation pump ensures quick supply of DHW to the draw-off points (if installed). This
is achieved by circulating the DHW once or more per hour through the DHW circulation pump via
a separate DHW circulation line. The circulation interval (the number of times per hour) can be
adjusted by your heating contractor in the Service menu.
You can set one of the following operating modes for DHW circulation:
• Automatic mode: the circulation starts 30 minutes before the first heating circuit is switched
on and it stops when the last heating circuit is switched off (basic setting). Alternatively, you can
set a separate DHW circulation program (Æ page 38).
• Permanently ON: The DHW circulation pump runs constantly at the set interval, regardless of
the heating circuits.
• Permanently OFF: The DHW circulation pump is not triggered at the set interval. You can use
the button to heat up the hot water and start circulation when needed.
5.5.4 Operating modes for solar
• Automatic (default setting)
• Permanently OFF (manually switched off)
• Permanently ON (constant manual operation). The solar thermal system will be in constant
operation for 30 minutes at maximum pump output. After 30 minutes the solar heating system
automatically switches back into automatic mode.
The operating mode “constant operation” effects a manual control of the solar circuit pump.
However, the solar thermal system will cut out if either the collector array or the cylinder exceeds
their maximum permissible temperatures (collector protection function).
For explanations regarding the settings, see the solar module documentation.
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