moviBOOST Vt
18
Check list for Commissioning / start-up
Pumps fail to start in automatic mode or cut out shortly after start-up. Lack of water is indicated.
System does not start up.
Pumps running but not delivering water.
Insufficient delivery.
System pressure too low.
System pressure too high.
Leakage at mechanical seal.
Pump(s) running hot.
Motor protection switch(es) triggered. Lack-of-water LED lit.
Pump(s) do(es) not stop.
Switching frequency too high (more than 30 start-ups per pump and hour).
Motor(s) running hot.
A
B
C
D
E
F
G
H
I
J
K
L
Code
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Pumps/pipes are not properly vented/filled Vent / prime.
1
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Shut-off elements (partially) closed.
Check, open as necessary
2
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Strainer clogged (inlet-side pressure
Clean.
3
reducer).
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•
•
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Inlet-side pressure reducer set incorrectly. Check, adjust as necessary.
4
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•
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Defective check valve in by-pass line
Fit new check valve
5
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Inlet-side shut-off valve closed.
Check, open as necessary.
6
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Discharge-side shut-off valve closed or
Check, open as necessary.
7
defective.
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Inlet pressure lower than stated in the
Contact KSB
8
purchase order.
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Inlet pressure higher than stated in the
Contact KSB
9
purchase order.
•
Start-up pressure set too high.
Check setting.
10
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Pressure transmitter set incorrectly or
Check setting.
11
defective.
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Pre-charge pressure of the accu. too low. Restore nitrogen cushion.
12
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Defective accumulator.
Check integrity / replace.
13
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Defective mechanical seal
Replace by new one.
14
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Suction-side pressure transmitter / mano- Check setting.
15
metric switch set incorrectly or defective.
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System’s check valve is defective.
Check, replace sealing element as
16
necessary.
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Water extraction higher than stated in the Contact KSB
17
purchase order.
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Motor protection switch tripped or set
Compare setting with the motor’s rating
18
incorrectly, or pump is blocked
plate data.
•
Set delay period too short.
Check setting.
19
•
Mains supply interrupted.
Check cable and remedy defect /
20
check fuse.
•
Control current fuse tripped(control cabinet) Determine cause and reset.
21
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•
Main fuse on distribution board (owner-
Check fuses and replace as necessary.
22
supplied) loose or blown; fuses possibly
Measure motor current.
too small or too fast.
•
Intermittent voltage fluctuations.
Press reset and fault acknowledgment
23
key.
•
Phase failure.
Check individual phases / fuse.
24
•
Inlet tank empty or float switch defective / Check and remedy defect.
25
disconnected.
Code
Cause
Remedy
Summary of Contents for moviBOOST Vt
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