Pumps With Frequency Converter - Della Toffola S/P Instrucciones Originales

VA MINOR (*)
VA MAJOR-B (*)
0
2
3
6
9
12
14
16
18
20
24
30
33
(*) Refer to the black arrow position and the graduated scale
3.4

PUMPS WITH FREQUENCY CONVERTER

The pump is directly operated through the equipped remote control (with a 10/15
mt long cable), equipped of a reverse switch (B) and a speed controller (A). The
pump speed can be modified at will, even during the operation phase, according
to the required capacity. Before using the remote control the main control
panel must be switched on turning the main switch (C) from
the position 1. The panel has also an additional dry running protection (see
page 20) and 24V shunt (normally closed contact) which allows the connection of
other devices on request (pressure switch, level sensor, remote control,
etc.).
ATTENTION! - The pump works only if the 24V shunt is connected
to the plug (F) or if connected to an external device that
close the circuit through the connector (G) supplyed.
Rotation speed pump (RPM)
900
855
830
750
670
600
555
510
465
425
345
235
190
VA MAJOR-M
210
250
275
360
460
565
645
725
810
900
-
-
-
23
VA MAXI (*)
600
520
480
380
275
190
-
-
-
-
-
-
-
the position 0 to