13
VCU/VCUN
Table 5
Fan model
Min. conductor cross section, mm
2
VCU, all fan models
1,5
VCUN 140 .. VCUN 180
1,5
VCUN 200 .. VCUN 400
2,5
VCUN 450 .. VCUN 500
4
Fig. 7. Connection of VCUN fan to power mains, fig. 7
S1
PE
1.
2.
3.
4.
Connection of VCUN fan is as follows, fig. 7:
Make sure that power cable is disconnected to power mains, fig. 7.1;
Remove the lid of the terminal box located on the motor casing, fig. 7.2.
Route the power cable wires through the cable gland on the terminal box, then strip the wires for 7-8 mm, fig. 7.3.
Connect the cables to the terminal box in compliance with the wiring diagram. The three-phase motors must be star-
connected considering the terminal marking, fig. 7.3, 9.4. For doing so, insert the wires into the respective terminals against insulation
stop and fix those with the screws.
Cover the terminal box with the lead, fig. 7.4.
Air flow direction in the system must match the pointer in the fan casing.
To check the correct impeller rotation start the fan for a short time. If the impeller rotation is wrong, switch over any two phases on
the motor terminals by changing the respective wires in the terminal block.
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03.11.2015 14:25:08