fiac New Silver Series, Use & Maintenance Manual

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4.3 p
osItIonIng tHe compressor
Once the position in which the compressor is to be installed has been identified ensure that the
compressor is set on a flat surface.
No special foundations or bases are required for the machine.
Lift the compressor using a forklift truck (forks at least 900 mm long) and fit the vibration-dam-
ping feet and block with the nuts under the four resting points where established.
Models on tank are supplied with rubber feet.
Do not secure the compressor rigidly to the floor.
4.4 c
onnectIng tHe compressor and relatIve InspectIons
c
onnectIng tHe compressor to tHe electrIcal maIns power supply
The compressor is to be connected to the electrical mains by the customer, to his
exclusive liability, employing specialised personnel and in compliance with the Acci-
dent Prevention Norms EN 60204.
INSTRUCTIONS FOR CONNECTING TO EARTH
This compressor must be connected to earth while in use in order to safeguard the operator
against electrical shocks.
The electrical connection must be carried out by a skilled engineer. It is advisable never to di-
smantle the compressor or even to make any other connections.
All repairs must be carried out exclusively by authorised service centres or other qualified cen-
tres. The earth wire of the power supply cable of the compressor must be connected only and
exclusively to the PE pin of the terminal board of the actual compressor. Before replacing the
plug of the power supply cable ensure that the earth wire is connected.
EXTENSION CABLE
Use only extension cables with plug and earth connection. Never use damaged or squashed
extension cables. Ensure that the extension cable is in a good state of wear. When using an extension cable, ensure that the cross
section of the cable is sufficient to convey the current absorbed by the product to be connected.
If the extension cable is too thin there could be drops in voltage and therefore loss in power and overheating of the equipment.
The extension cable of the three-phase compressors must have a cross section in proportion with its length: see table below:
Valid for max lenght 20 m
HP kW 220-240V/50-60Hz 380-415 V/50-60Hz 460V/60Hz
3 2,2 2,5 mm² - 1,5 mm² -
4 3
4 mm²
-
2,5 mm²
-
5�5 4 4 mm² AWG 12 2,5 mm² -
7,5 5�5 6 mm² AWG 10 (AWG 6 for single phase) 2,5 mm² -
10 7�5 10 mm² AWG 8 6 mm² AWG11
15 11 16 mm² AWG 6 10 mm² AWG 8
20 15 25 mm² AWG 4 16 mm² AWG 7
Avoid all risks of electrical shocks. Never use the compressor with damaged electrical cables. Regularly check the electri-
cal cables. Never use the compressor in or near water or hazardous area where electrical shocks may be encountered
ELECTRICAL CONNECTION
Three-phase compressors are supplied with a power supply cable without plug and must be installed by a specialised technician.
It is advisable to install the connector, magneto thermal switch and fuses near the compressor (max. 3 m away).
The magneto thermal switch and the fuses must have the characteristics indicated in the table below:
Hp kW V 220/240 V 380/415 V 460
Magneto thermal
switch (A)
Fuse(A)
Magneto thermal
switch (A)
Fuse(A)
Magneto thermal
switch (A)
Fuse(A)
direct start (D�O�L)
3 2,2 16 20 10 16 - -
4 3 20 32 16 20 - -
5,5 4 25 35 20 25 - -
7,5 5,5 40 50 - - - -
Star-delta start
5,5 4 20 25 16 20 - -
7,5 5,5 32 36 25 25 - -
10 7,5 40 40 25 30 20 25
15 11
63 80 40 40 32 40
20 15 80 80 50 50 40 50
10
4. I
nstallatIon