Product Manual

ENGLISH
4 - Edition 05/2019 Cod. 9828093309 00 -
2.0 INTENDED USE
The compressor has been built to supply compressed air for industrial use.
The machine 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 appliance cannot be used to produce air to be breathed by humans or used on direct contact with
foodstuffs. These uses are allowed if the compressed air produced is filtered by means of a suitable filtering system
(Consult the manufacturer for these special uses.)
This appliance 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
3.1 OPERATION FOR COMPRESSOR
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 intake air is filtered by the filter cartridge
fitted upstream from the intake valve. Inside the compressor unit, the air and the lubricating oil are compressed and
sent to the oil separating tank 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. The machine is fitted with a suitable
air-cooling system.
The machine is protected by a special safety thermostat: if the oil temperature reaches 105 ÷ 110 °C the machine cuts
out automatically.
3.2 OPERATION FOR DRYER
At the moment of use the air flows from the tank to the drier and is then dried and sent to the distribution network. Dryer
operation is described below. The gaseous refrigerant coming from the evaporator (4) is sucked by the refrigeration
compressor (1) and it is pumped into the condenser (2). This one allows its condensation, eventually with the help of the
fan (3); the condensed refrigerant passes through the dewatering filter (8) and it expands through the capillary tube (7)
and goes back to the evaporator where it produces the refrigerating effect.
Due to the heat exchange with the compressed air which passes through the evaporator against the stream, the
refrigerant evaporates and goes back to the compressor for a new cycle.
The circuit is equipped with a bypass system for the refrigerant; this intervenes to adjust the available refrigerating
capacity to the actual cooling load.
This is achieved by injecting hot gas under the control of the valve (9): this valve keeps constant the pressure of the
refrigerant in the evaporator and therefore also the dew point never decreases below 0 °C in order to prevent the
condensate from freezing inside the evaporator.
The drier runs completely automatically; it is calibrated in the factory for a dew point of ~ 3 °C and therefore no further
calibrations are required.
DRYER FLOW DIAGRAM
4.0 GENERAL SAFETY STANDARDS
The appliance may be used only by specially trained and authorized personnel.
Any tampering with the machine 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 European Standards on safety.
ATTENTION: UPSTREAM OF THE MACHINE INSTALLAN ISOLATOR KNIFE-SWITCH WITH AN AUTOMATIC
CUTOUT AGAINST CURRENT SURGES AND EQUIPPED WITH A DIFFERENTIAL DEVICE.
ALL WORK ON THE ELECTRIC PLANT, HOWERE SLIGHT, MUST BE CARRIED OUT BY
PROFRSSIONALLY SKILLED PERSONEL.
AIR INLET
AIR OUTLET
CONDENSATE
DRAIN