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Building Technologies Division User Manual LMS14... CC1U7471en
6 The settings in detail 07.05.2014
6.5.33 Forced signal and locking signal
Line no. Operating line
HC1 HC2 HC3
861 1161 1461 Excess heat draw
Off
Heating mode
Always
Excess heat draw can be triggered by the following functions:
- Inputs Hx
- Storage tank recooling
- Solid fuel boiler excess heat draw
When dissipation of excess heat is activated, it can be drawn by space heating. This
can be selected separately for each heating circuit.
Off
Excess heat draw is deactivated.
Heating mode
Excess heat is drawn only when the controller operates in Heating mode.
Always
Excess heat is drawn in all operating modes.
6.5.34 Buffer storage tank/primary controller
Line no. Operating line
HC1 HC2 HC3
870 1170 1470 With buffer
No
Yes
If there is a buffer storage tank, select whether the heating circuit can draw heat from it.
When using alternative heat sources, the buffer storage tank temperature is used as a
control criterion for the release of additional heat sources.
Line no. Operating line
HC1 HC2 HC3
872 1172 1472 With prim contr/system pump
No
Yes
Enter whether the heating circuit receives its heat via the primary controller or with the
help of the system pump (depending on the type of plant).
Excess heat draw
With buffer
With prim contr/system
pump
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