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Grundfos CU 362 - Page 34

Grundfos CU 362
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Example 1
Group 1: Group 2:
4 kW 15 kW
100 m
3
/h 600 m
3
/h
Action Level [cm]
Start 4 160
Start 3 150
Start 2 110
Start 1 100
Stop 4 50
Stop 3 50
Stop 2 50
Stop 1 50
Group 1 Group 2 Common settings
Alternation enabled Yes Alternation enabled Yes Alternation enabled No
Max. number of started pumps 2 Max. number of started pumps 2 Max. started pumps, total 2
Min. number of started pumps 1 Min. number of started pumps 1 Min. started pumps, total 1
Groups may run together No
System reaction to inflow changes
Inflow Action
Normal (Start
1)
Both pumps in group 1 operate normally and
alternately.
See field 1 in the figure below.
Higher inflow
(Start 2)
Both pumps in group 1 are in operation.
See field 2 in the figure below.
Inflow Action
Higher inflow
(Start 3)
Both group 1 pumps are stopped, and one group
2 pump is started (changeover).
See field 3 in the figure below.
Higher inflow
(Start 4)
Both group 2 pumps are started.
See field 4 in the figure below.
1 2 3
4
Level
Start 4
Start 2
Start 3
Start 1
Stop
Pump 1
Group 1
Pump 2
Pump 3
Pump 4
Time
Group 2
TM046707
Example of alternation
If the alarm level is reached, the user may choose to send an alarm
SMS.
Set alternation and groups before setting levels, as
alternation and groups affect the use of levels.
34
English (GB)

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