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NOTES
1. Automatic means that when the controller
stops, the vent valve is opened with a delay de-
fined by window n. 126; when the controller
starts, the vent valve is immediately closed.
2. On command means that the vent valve is
opened or closed by means of window n. 122.
3. These commands remove the pump motor sup-
ply for a short time. If they are used continu-
ously, they can cause the pump stopping.
7
6
5
4
TOO HIGH LOAD
SHORT CIRCUIT
OVERVOLTAGE
AUX FAIL
Window N. 206 Bit Description
INLET SCREEN INSTALLATION
The inlet screens mod. 969-9302, 969-9304 and
969-9316 prevents the blades of the pump from
being damaged by debris greater than 0.7 mm di-
ameter.
3
2
1
0
NO CONNECTION
PUMP OVERTEMP.
CONTROLL. OVERTEMP.
POWER FAIL
The inlet screen, however, does reduce the pump-
ing speed by about 10%.
The inlet screen is fitted in the upper part of the
pump, as shown in the figure.
The screen can be mounted on each pump.
The screen can be removed as shown in the fol-
lowing figure.
The following figure shows the overall flange di-
mensions with the protection screen fitted on pump
with ISO flange and pump with CFF flange.
37
TECHNICAL INFORMATION
87-900-934-01(B)
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