Main Circuit Flow Switch; Pump Pressure Switch - Savio 20/1 MFS User Manual

Servicing instructions
Re-- assembling the pump
1 Carefully clean the supporting seat for the flat gasket;
2 correctly position the gasket in the seat on the volute (scroll);
3 correctly position the pump and the mounting flange;
4 insert the four mounting screws;
5 tighten the four screws until they meet resistance but do not
allow the screws to exert any uneven pressure whatsoever on
the flange;
6 tighten down the four mounting screws completely in the se-
quence shown in the figure.
Do not overtighten screws;
7 connect the electrical power cables to the pump.
To reassemble correctly the electric wires and connectors look at the
wiring diagram in sect. 8.1 or at the diagram stuck on the inner cover
of the control panel.
6.23

Main circuit flow switch

1 Ensure electricity is switched off at main isolator;
2 remove the front panel and the right panel of the case and lower
the control panel (sect. 6.2);
3 drain the main circuit (sect. 6.3);
4 completely loosen the two screws " A" ;
5 remove the cover " B"which protects the microswitch;
6 disconnect the electrical connections;
7 loosen the two screws " C"which attach the flow switch to the
pipe;
8 remove the flow switch;
9 reassemble in reverse order.
When replacing the flow switch, be sure to pay attention to the refer-
ence notch on the body of the flow switch; this notch must be lined
up with a similar notch on the pipe.
To reassemble correctly the electric wires and connectors look at the
wiring diagram in sect. 8.1 or at the diagram stuck on the inner cover
of the control panel.
6.24

Pump pressure switch

1 Ensure electricity is switched off at main isolator;
2 remove the front panel of the case and lower the control panel
(sect. 6.2);
3 drain the main circuit (sect. 6.3);
4 remove the protective cap on the pump pressure switch;
5 disconnect the electrical connections;
6 with a suitable fork spanner unscrew the pump pressure switch
and remove it;
7 reassemble in reverse order.
To reassemble correctly the electric wires and connectors look at the
wiring diagram in sect. 8.1 or at the diagram stuck on the inner cover
of the control panel.
32
rev. 17.09.93
A
A
B
C
C