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Modulation depending
on boiler output
Additional parameters
Info/diagnostics
394/617
Building Technologies Division
This function is suited for both single-boiler plants and cascaded systems with or
without pressureless header. If the burner is operated at low output, the boiler pump
should also run at low speed. And if the boiler operates at high output, the boiler pump
should run at high speed. The boiler pump's speed is calculated based on the current
boiler output. The boiler pump is operated at minimum speed up to a certain boiler
output that can be parameterized (minimum output). Above another boiler output that
can be parameterized (maximum output), the boiler pump is operated at maximum
speed. Between minimum output (Ynmin) and maximum output (Ynmax), the pump's
speed is continually increased
The function is selected via enumeration Burner output of parameter Pump modulation
(2320).
Line no.
Operating line
2320
Pump modulation
2322
Pump speed min
2323
Pump speed max
2327
Pump speed min OEM
2328
Pump speed max OEM
2334
Output at pump speed min
2335
Output at pump speed max
Line no.
Operating line
8308
Boiler pump speed
8323
Fan speed
User Manual LMS14...
6 The settings in detail
.
CC1U7471en
28.01.2015
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