Chicago Pnematic Compressors
11/2008
62 305 549 65
Page 5
1.0 GENERAL CHARACTERISTICS
These units use single-stage rotary screw air compressors with oil injection.
The central unit comprises:
compressor; oil separator; oil cooler, air cooler; fan; electric start; safety and regulation devices; instrument panel.
The unit is completely assembled in the factory; the necessary connections for setting it up are:
•
connection to the main power (see installation section)
•
connection to the compressed air network (see installation section)
The compressor-motor unit is fitted on the compressor chassis by means of flexible supports: this allows the compressor
unit to be laid directly on the floor without any need of further vibration-damping systems.
2.0 INTENDED USE
The compressor has been built to supply compressed air for industrial use.
The compressor cannot be used in premises where there is a risk of fire or explosion or where work is carried
out which releases substances into the environment which are dangerous with regard to safety (for example:
solvents, inflammable vapours, alcohol, etc.).
In particular the compressor cannot be used to produce air to be breathed by humans or used on direct contact with
foodstuffs.
This compressor must be used only for the purpose for which it was specifically designed.
All other uses are to be considered incorrect and therefore unreasonable.
The Manufacturer cannot be held responsible for any damage resulting from improper, incorrect or unreasonable use.
3.0 OPERATION
Reference flow diagram in section 25.0.
The electric motor and the compressor unit are coupled by means of a belt transmission.
The compressor unit takes in the outside air through the suction valve. The air taken in is filtered by a panel pre-filter
fitted on the panel of the cabinet and by the filter cartridge fitted upstream from the suction valve. Inside the compressor
unit, the air and the lubricating oil are compressed and sent to the oil separating filter where the oil is separated from the
compressed air; the air is then filtered again by the oil separating cartridge to reduce the amount of suspended oil
particles to a minimum. At this point the two flows (of oil and air) are sent to two separate coolers where they are cooled,
using a flow of air taken from the environment by a special fan inside the compressor.
The cooled oil returns to the circuit while the compressed air is sent to the using network.
4.0 GENERAL SAFETY STANDARDS
The compressor may be used only by specially trained and authorized personnel.
Any tampering with the compressor or alterations not approved beforehand by the Manufacturer relieve the latter of
responsibility for any damage resulting from the above actions.
The removal of or tampering with the safety devices constitutes a violation of the OSHA regulations.
ATTENTION: UPSTREAM OF THE COMPRESSOR INSTALL AN ISOLATOR KNIFE-SWITCH WITH AN AUTOMATIC
DISCONNECT AGAINST CURRENT SURGES (SEE WIRING DIAGRAM)
ALL WORK ON THE ELECTRICALS, EVEN IF SLIGHT, MUST BE CARRIED OUT BY PROFESSIONALLY SKILLED
PERSONEL.
