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Connection of VCU fan is as follows, fig. 8:
make sure that power cable is disconnected to power mains, fig. 8.1.
remove the lid of the terminal box located on the motor casing, fig. 8.2.
route the power cable wires through the cable gland on the terminal box, then strip the wires for 7-8 mm, fig. 8.3.
connect the cables to the terminal box in compliance with the wiring diagram and considering the terminal marking. Connection
of the single-phase motors is shown in fig. 8.3 and 9.1. Connection of the single-phase motors with external thermal contacts is shown in
fig. 9.2. To connect the cable to power mains, insert the wires into the respective terminals against insulation stop in the metal part and fix
those with the screws.
cover the terminal box with the lead, fig. 8.4.
Connection example of the VCU fan with external thermal protection and a magnetic starter is shown in fig. 9.3.
The terminals TW1, TW2 are the electrical leads of the normally closed contact of the motor overheating protection. Connect the
contact in series to the power circuit of the magnetic starter coil that starts the motor. In case of the motor overheating the contact gets
broken and switches the starter coil off to cut power off and stop the motor.
Fig. 8. Connection of VCU fan to power mains
1.
2.
3.
4.
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