D860MGB rev04
9/32
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Figure 3 -
Connection with flex hose 2”
Figure 4 - Connection with two rigid pipes Ø 42
4 ELECTRICAL CONNECTIONS
4.1
GENERAL REGULATIONS
Any electrical connection has to be carried out by trained and qualified staff, according to the specific
regulations.
Before starting any kind of work, always disconnect the electrical power opening the general switch.
The cables for the electrical power feeding have to have a section sufficient for the requested power.
Their isolation has to be suitable according to the voltage of the electrical network. The connection
cables have not to be put in contact with parts subject to strong heating.
The grounding cable has to be always connected to the bolt marked with the proper symbol.
4.2
CONNECTION BOX
The connection box is on the pump unit cover, near the valve block..
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The box of the standard pump unit includes (see Figure 5):
a) Terminal block of the electrical motor
b) Grounding bolt
c) Thermostat for oil temperature 70°C
d) Motor thermistors 110°C
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The pump unit box, cabled (optional), includes (see Figure 6):
a) Therminal block of the electrical motor
b) Grounding bolt
c) Terminals of the thermostat for the oil cooling (optional.)
d) Terminals of the max pressure switch (optional.)
e) Terminals of the min pressure switch (optional.)
f) Terminals coil EVD
g) Terminals coil EVE
h) Terminals of motor thermistors 110°C
i)
Terminals of the oil thermostat 70°C
j)
Terminals of the overload pressure switch (optional.)
2”
2”
2 x (
1½” - Ø42)
2 x (1”½ - Ø42)
