0%
T(s)
100%
CC-000095
T
External signal demand
Compressor speed
Time
Figure 16: Unit remotely controlled
Table 18: Unit remotely controlled
System demand request
Example of prevention
Demand request changing very fast and often from 0 to 100%
Start in low load and ignore demand signal for the
first
5 minutes and then
smooth demand signal
Very frequent start and stop request
Ignore stop request for the
first
5 min
Very frequent change from cooling to heating and vice versa
Do not allow change from cooling to heating and vice versa in less than 2h
© Danfoss | Climate Solutions | 2023.08
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Scroll compressors, VCH115 | Frequency converter