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Verfügbare Sprachen
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In order to use the compressor in complete safety read the safety standards given in section 1.3. before reading this
section.
4.1 a
dmitted surrounding conditions
Position the machine as established when the order was placed. Failing this the Manufacturer is not liable for any inconveniences
that may possibly arise.
Unless pointed out otherwise when placing the order, the compressor must work regularly in the surrounding conditions indicated
below:
ROOM TEMPERATURE
For Star/Delta start machines, the room temperature must not be lower than 5°C or higher than 45°C, or for machines equipped with
inverter from 5°C to 40°C, to ensure the ideal operational efficiency of the compressor.
If the compressor works at a room temperature lower than the minimum value, the condensate could be separated within the circuit
and therefore the water would mix with the oil, thus deteriorating the quality of the latter, failing to guarantee the even formation of the
lubricating film between the moving parts with the possibility of seizure.
If the compressor works at a room temperature higher than maximum value, the compressor would take in air that is too hot, which
would prevent the heat exchanger from adequately cooling the oil in the circuit, raising the working temperature of the machine, thus
causing the thermal safety device to trip, which stops the compressor due to an excessive temperature of the air/oil mixture at the
screw outlet.
The maximum temperature of the room is to be measured while the compressor is running.
LIGHTING
The compressor has been designed in compliance with legal prescriptions and in the attempt to minimise shadow zones to facilitate
the operator's job.
The lighting system of the factory is to be considered as crucial for the operator's safety.
The room in which the compressor is installed must have no shadow zones, dazzling lights or stroboscopic effects due to the lighting.
ATMOSPHERE WITH RISK OF EXPLOSION AND/OR FIRE
The standard compressor is not pre-arranged or designed to work in rooms subject to the risk of explosion or fire. The performance
of the compressor may decrease at the maximum permitted ambient temperature, with relative humidity higher than 80% and at an
altitude of more than 1,000 mt.
4.2 s
pace required For maintenance
The compressor must be installed in a large room that is well-aired, dust-free and sheltered away from rain and frost. The com-
pressor takes in a large amount of air that is required to ventilate it internally. A dusty atmosphere would in time cause damages and
inefficient performance.
Part of the dust once inside is taken in by the air filter causing it to clog rapidly and another part of dust will settle on the components
and will be blown against the cooling radiator, consequently compromising the efficiency of the heat exchanger. It is therefore obvious
that the cleanliness of the area in which the compressor is installed is crucial for the correct efficiency of the machine, avoiding exces-
sive running and maintenance costs. To facilitate maintenance jobs and to create a favourable circulation of air, the compressor must
have a sufficient free space all around it (see fig.).
The room must be provided with outlets that lead outdoors near the floor and ceiling that will allow the natural circulation of air. If this
is not possible, install some fans or extractors that guarantee a higher air flow rate than that taken in by the compressor.
Ducts for the inlet and outlet of the air can be used in unfavourable environments. These ducts must be the same size as the in-take
and delivery grid. If these ducts are longer than 3 meters contact the Authorised Service Centre.
Note! A conveyance system can be fitted to recover the hot ventilation air delivered, which can be used to heat the room or for other
purposes. It is crucial that the cross section of the system that recovers the hot air is greater than the total cross section of the grid
slots plus the system must be equipped with a forced extraction system (extractor fan) to favour a constant downflow (min. sect. cm²
1200).
4. i
nstallation
9
EN
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