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H
Fig. 4
Installation example
Type
PC 15
PC 22
EC 15
EC 22
MC 15
MC 22
The unit can be fitted directly to the discharge port of
the pump or between the pump and the first draw-off
point.
A It is recommended to install the unit so that the
distance of height between the unit and the high-
est draw-off point does not exceed the values
stated.
B The arrows on the unit indicate the flow direction.
Always install the unit with the arrows pointing
upwards.
C Do not install draw-off points between the pump
and the unit.
4. Electrical connection
The electrical connections and protection must be
carried out in accordance with local regulations.
A
B
Carry out the electrical connection as shown in
fig. B, page 78.
Note: If the unit is incorporated in a system con-
nected to an electricity supply system, which is/can
be separated from the public supply, e.g. generator
operation, the unit should be protected against
overvoltage.
5. Start-up
C
See also figs. C and D, page 78.
H max.
15 m
22 m
8 m
10 m
15 m
22 m
Never make any connections in the
terminal box of the unit unless the
electricity supply has been switched
off.
The unit must be connected to an
external mains switch with a minimum
contact gap of 3 mm in all poles.
Step
Action
Switch on the electricity supply.
1
The green and yellow indicator lights
illuminate.
The pump runs for a few seconds until
there is pressure on the system.
The pump stops and the yellow indicator
light goes out.
The system is ready for operation.
2
Note: If there is no pressure on the
system,
• PC/MC: the red indicator light
illuminates. Go to point 3.
• EC: go to point 3.
Open a tap and press Reset/Restart
• PC/MC: until the red indicator light
3
goes out.
• EC: until the water starts flowing.
Close the tap.
4
The pump stops.
The green indicator light illuminates.
5
The yellow indicator light goes out.
The unit is ready for operation.
7
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