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Building Technologies Division User Manual LMS14… CC1U7471en
6 The settings in detail 28.01.2015
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
Modulation depending
on boiler output
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