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www.juwent.com.pl
EC motors: single 1~230V
(OTIMAX-10) and 3-phase 3~400V (other sizes) feature a very high
efficiency, low noise level and high durability and reliability. Control signal dependant rotation
adjustment enables accurate and optimum adjustment of the unit’s operation within a particular
ventilation system. Within the motor housing all electronic control elements are integrated:
»
motor thermal protection system PTC (requires no additional external thermal protection);
»
rotation adjustment system, which can be controlled by an external controller with 0…10V
DC analogue signal (option 4…20mA). Analogue signal can be achieved also by means of a
potentiometer (10kΩ) connected to adequate terminals;
Unit fans are equipped with terminal blocks installed in fan motor box. Power and control cable
should be inserted into terminal box of the motor box casing, with previously removed cover and
blinded holes. Connection of the cables should be carried out according to the diagram in Fig. 1
(fan control outputs cannot be connected in parallel). The cables may also be are already wired by
JUWENT (for orders including automatic equipment).
In order to avoid any interferences, pay attention to sufficient clearance between supply and control
cables. Length of control cables should be max. 30m, and if longer than 20m they must be screened.
When a screened cable is used, the screen should be one-side connected to protective conductors,
i.e. only to a device with protective conductor.
Fig. 1 Connection diagram for EC fan
Rated parameters of single fans with
EC motors
Unit size
Air supply
Air exhaust
Power
[kW]
Current
[A]
Voltage
[V]
Number of
fans
Current
[kW]
Prąd
[A]
Voltage
[V]
Number of
fans
OptiMax-10
0,78
4,0
230
1
0,78
4,0
230
1
OpitMax-20
3,9
6,2
400
1
2,5
4,0
400
1
OptiMax-30
3,0
4,8
400
2
2,5
4,0
400
2
OptiMax-40
5,2
8,4
400
2
2,9
4,8
400
2
OptiMax-50
6,0
9,4
400
2
3,5
5,6
400
2
