6.
Electrical Connections
The characteristics of the electrical lines must be determined by specialized personnel able to design electrical instal
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lations; moreover, the lines must be in conformity with regulations in force.
The protection devices of the unit power line must be able to stop the presumed short circuit current, whose value must
be determined in function of system features.
The power cables and the protection cable section must be defined in accordance with the characteristics of the pro
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tections adopted.
All electrical operations should be performed by trained personnel having the necessary requirements by the regula
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tions in force and being informed about the risks relevant to these activities.
Operate in compliance with safety regulations in force.
Electrical data
The nameplate indicates the specific electrical data of the unit.
The electrical data indicated in the technical bulletin and in the manual refer to the standard unit, accessories excluded.
Refer to the electrical data report on the serial number label:
•
Tensione
•
F.L.A.: full load ampere, absorbed current at maximum admitted conditions
•
F.L.I.: full load input, full load power input at max. admissible condition
•
Electrical wiring diagram Nr
Connections
1. Refer to the unit electrical diagram (the number of the diagram is shown on the serial number label).
2. verify that the network has characteristics conforming to the data shown on the serial number label.
3. Before starting work, verify that the sectioning device at the start of the unit power line is open, blocked and
equipped with cartel warning.
4. Primarily you have to realize the earthing connection.
5. Shelter the cables using adequate measure fairleads.
6. Prevent dust, insects or rodents from entering the electrical panel as they can damage components and cables.
7. Prevent noise from escaping from the compressor compartment; seal any openings made.
8. Secure the cables: if left unattached they can be stripped.
9. The cables must not touch the compressors or the refrigerant piping (they reach high temperatures).
10. Do not drill holes in the electrical panel.
Alternatively, restore the IP rating with watertight systems.
11. Before power the unit, make sure that all the protections that were removed during the electrical connection work
have been restored.
Opening for electrical power supply
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4 221 546 / 00
ElECTRICal ConnECTIonS
