Daikin UATYA-BBAY1 Manual De Instalación, Uso Y Mantenimiento página 41

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To fix the power cable, use power cable fixing systems that resist tensile and torsional stresses.
The weight of the cables must not be borne by the electrical connection system.
The cross-section of the cable and the line protection devices must correspond to those indicated in
the wiring diagram.
The connections to the electrical control panel must be made maintaining the stated IP protection
rating.
A phase sequence and minimum/maximum voltage relay, with three led, is mounted in the electrical cabinet.
The green led light means that the power supply is properly connected and so the relay is closed.
The yellow led blinking quickly with a long pause means that one phase is missing (the relay is open).
The yellow led blinking quickly with a short pause means that the phase sequence is wrong (the relay is open).
The red led blinking quickly with a short pause, togheter with the green led lighted, means that the supply voltage is
out of the limits (the relay is closed).
The red led blinking slowly means that the alarm due to the low voltage is active (the relay is open).
The red led continuous light means that the alarm due to the over voltage is active (the relay is open).
The contact of the phase sequence relay cuts off the 230 V power supply and therefore the controller
will in any case be powered, but the fans and compressors will not start.
Make sure no voltage is present before carrying out any operation on electrical parts.
If you use a residual current device to protect the power line, in units with inverter, use type "B" or "B+"
residual current devices, with minimum tripping threshold of 300 mA and delayed tripping.
The electrical connections to potential-free contacts, which are powered by external sources, must be
suitably protected against overcurrent and earth faults.
The circuit of the potential-free contacts inside the electrical control panel is made using orange cable.
We reserve the right to make changes without any prior notice.
UATYA
4P645202-1
Fig. 11 Phase sequence relay
Translation from original instructions
Packaged Rooftop
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