CLIVET WSAN-XIN 21-141, Installation And Operating Manual, Page: 15 / 72

M0R940E13-00 WSAN-XIN 21-141 15
6 Electrical connections
The characteristics of the electrical lines must be determined by specialized personnel able to design electrical installations; 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 protections adopted.
All electrical operations should be performed by trained personnel having the necessary requirements by the regulations in force and being
informed about the risks relevant to these activities.
Operate in compliance with safety regulations in force.
6.1 Electrical data
The serial number label reports the unit specific electrical data, included any electrical accessories.
The electrical data indicated in the technical bulletin and in the manual refer to the standard unit, accessories excluded.
It reports the regulations indications such as:
•
Voltage
•
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 wiringdiagram Nr.
If the DHW module is present, consider the electric resistance absorption in the power supply line dimensionino.
6.2 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. Before power the unit, make sure that all the protections that were removed during the electrical connection work have been restored.
6.3 Signals / data lines
Do not overpass the maximum power allowed, which varies, according to the type of signal.
Lay the cables far from power cables or cables having a different tension and that are able to emit electromagnetic disturbances.
Do not lay the cable near devices which can generate electromagnetic interferences.
Do not lay the cables parallel to other cables, cable crossings are possible, only if laid at 90°.
Connect the screen to the ground, only if there aren’t disturbances.
Guarantee the continuity of the screen during the entire extension of the cable.
Respect impendency, capacity and attenuation indications.