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Building Technologies Division User Manual LMS14... CC1U7471en
6 The settings in detail 07.05.2014
6.5 Heating circuits
For the heating circuits, a number of functions are available which can be individually
set for each heating circuit. Every heating circuit can be a virtual circuit, pump circuit or
mixing circuit. The Mixing function is available only when an external extension module
is used.
Note!
Heating circuits 1, 2 and 3 can be switched on/off via parameter if, for example, a
request for heat shall only be generated via external consumer group 1/2/3.
If, with the mixing circuit, the flow sensor is not connected, it becomes a pump circuit
with regard to functions.
6.5.1 Operating mode
Line no. Operating line
HC1 HC2 HC3
700 1000 1300 Operating mode HCx
Protection
Automatic
Reduced
Comfort
The operating modes of the heating circuits are selected directly with the operating
mode button.
This setting is used to switch between different operating modes. Functionality
corresponds to the operating mode selection via the operating mode button. For details,
refer to section Operation.
Note!
The operating mode can also be changed via input H (refer to chapter Operating
mode changeover via input H).
Protection
Continuous operation (24 hours) at the Frost protection level.
Switching program, presence button, holiday program, optimum start/stop control and
ECO program have no impact.
Note!
When using a room thermostat, it normally prevents the room temperature from
falling and must be set to a level that ensures frost protection for the room (also refer
to chapters Compensation variant, Room model, and Frost protection for the room).
In the case of compensation variants RT-RR and RT-WR, frost protection for the
room according to chapter Frost protection for the room can become active because
a room sensor is installed and as a result of the acquired room temperature, even if
the room thermostat signals Warm.
Automatic
Automatic operation at the Comfort, Reduced or Frost protection level in accordance
with the switching program, the presence button, the holiday program, optimum
start/stop control and the ECO function.
Operating mode HCx
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