DOL 634 CE
36
Technical User Guide
Ventilation sequence
The livestock house's ventilation system
Flap in stepless unit: The stepless ventilation sequence is
achieved by opening and closing the flap.
Fan in stepless unit: The stepless fan runs as long as possible at
low speed.
Variable ON/OFF: 0- 10 V control signal to fan in stepless ON/
OFF.
Max. output in % at low and high regulation.
Method of Operation
1 stepless unit
2 MultiStep units
From low to high regulation
Figure 3: Principle diagram of Dynamic MultiStep system.
Outputs
Low
High
Stepless unit
8.5
13
MultiStep 1
8.5
13
MultiStep 2
17
26
34
52
Table 1:
Examples of outputs
