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Building Technologies Division User Manual LMS14… CC1U7471en
6 The settings in detail 28.01.2015
6.13.3 Operating mode
Line no. Operating line
3510 Lead strategy
Late on, early off
Late on, late off
Early on, late off
Line no. Operating line
3511 Output band min
Line no. Operating line
3512 Output band max
The heat sources are switched on and off according to the selected lead strategy while
giving consideration to the preset output band.
To deactivate the impact of the output band, the limit values must be set to 0% and
100%, and the lead strategy to be selected is Late on, late off.
Late on, early off
Additional boilers are switched on as late as possible (output band max) and switched
off again as early as possible (output band max). This means that the smallest
possible number of boilers are in operation, or additional boilers operate with short
on times.
Late on, late off
Additional boilers are switched on as late as possible (output band max) and switched
off again as late as possible (output band min). This leads to the smallest possible
number of switch-on/off actions for the boilers.
Early on, late off
Additional boilers are switched on as early as possible (output band min) and switched
off again as late as possible (output band min). This means that the largest possible
number of boilers are in operation, or additional boilers operate with the longest
possible on times.
Lead strategy
Output band min
Output band max
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