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The shunt box is located on the opposite side of the outlet pipes (see Chapter 8,
the terminal board for the grounding connection and the quick-connect terminal board for connection of the power supply to the
motors and heaters of defrost and drain (if included).
To insert the wires in the quick-connect terminal board (Figure 7), follow the instructions provided below:
Figure 7– Terminal boards in the shunt box.
1.
insert a spindle on the specific opening (near the middle of the terminal board);
2.
the blade of the spindle keeps the spring open, allowing the operator to introduce the conductor;
3.
insert the conductor with the end peeled off or equipped with a crimped terminal;
4.
pull out the spindle. the conductor is thus safely fastened.
All the models have fan motors powered with a voltage of 230V/1Ph/50-60Hz; defrosting heaters are present on the ED models,
arranged to be powered with 400V/3Ph/50-60Hz (see
60Hz, modify the connection as shown in
ATTENTION:
Figure 8 – Wiring diagram with heaters powered with 400V/3Ph/50-60Hz.
230V/1Ph/50-60Hz
230V/1Ph/50-60Hz
Figure 9.
the terminal block is designed to connect the heaters in three-phase mode. If necessary, if you want to wire
the heaters in single-phase mode, check the powers and use appropriate cables and terminals (on some
models you may need to replace the terminal block with a larger one). If you have any questions please
contact our Technical Department.
M4
M3
M2
R
4
N
5
N
L
N
L
Figure
Figure
8). If you want to power the heaters with a voltage of 230V/1Ph/50-
M1
R
1
R
2
R
3
N
4
N
3
2 1
10). There are two terminal boards inside it:
L1
L2
400V/3Ph/50-60Hz
L3
N
RC-RCS Pag - 46 - REV 02 03/16
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