Electrical Connections - Daikin UATYA-BBAY1 Manuel D'installation, D'utilisation Et D'entretien

5.5 Electrical connections

All electrical operations must be carried out by personnel having the necessary legal requirements, and trained and
informed on the risks connected with these operations.
The sizing and characteristics of the power lines and relevant components must be determined by staff qualified to
design electrical systems, following the international and national regulations of the place of installation of the units
in conformity with the regulations in force at the time of installation.
To install components outside the unit, you must refer to the wiring diagram supplied with the unit.
The wiring diagram, along with the manuals, must be kept carefully and made available for future work on the unit.
Overview:
- The electrical connections must comply with the information shown in the wiring diagram attached to the unit and
the regulations in force in the place of installation.
- grounding is required by law;
- The installer must connect the earth cable to the PE terminal on the earth bar situated in the electrical control
panel.
- the installer must connect the ground cable with the appropriate PE terminal on the ground bar located in the
electrical panel as specified in paragraph 8.2.6 of the EN 60204-1 standard.
- the standard power supply voltage (see specific wiring diagram) must not fluctuate by more than ±10% and the
unbalance between phases must always be less than 2%. If this does not occur, contact our technical department
to choose suitable protection devices.
- The standard supply voltage (see specific wiring diagram) must not fluctuate by more than ±10% and the
unbalance between phases must always be less than 2%.
- The control circuit power supply is taken from the power line via a transformer situated in the electrical control
panel; the control circuit is protected by fuses.
- Make sure the power line is correctly connected with a clockwise phase sequence.
This equipment complies with IEC 61000-3-12, regarding limits for harmonic currents, provided that
the short-circuit power Ssc, at the interface point between the user's supply and the public system, is
greater than or equal to the value reported in the wiring diagram provided with the unit.
It is the responsibility of the installer or user of the equipment to ensure, by consultation with the
distribution network operator if necessary, that the equipment is connected only to a supply with a
short-circuit power Ssc greater than or equal to the value reported in the wiring diagram provided with
the unit".
To connect the unit to the power supply, a metallic blind flange has been foreseen on the lower part of the electrical
cabinet
Fig. 8 Blind flange for the connection to the power supply (view from the bottom of the electrical cabinet)
To pass with the power supply cable, it is possible to disassemble and drill the required holes on the flange in order
to assembly the proper cable glands.
The flange must be removed to run the power cables and drilled to install the Atex-certified cable glands.
We reserve the right to make changes without any prior notice.
UATYA
4P645202-2
Translation from original instructions
Packaged Rooftop
39