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Model Number Nomenclature
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Hitachi may make improvements and/or changes in the products described in this publication at any time without notice.
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The model equipped 55kW is used as the representative model for the product figures in the manual.
O S P - 55 V A N
Oil Flooded Type
Screw Type
Package Type
Type N (NEXT Series)
A: Air-Cooled
V:
Variable Speed Drive Control
Motor Output (kW)
:
55kW, 75kW
Never remove a protective device from the air compressor or
modify the air compressor.
It is imperative to install an earth leakage (ground) circuit breaker
on the power cable. This prevents a ground fault accident.
Never use the
HI
HI
SCREW
as a respiratory appliance by which a
person breathes the compressed air directly.
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International System of Units (SI)
For the unit of pressure the International System of Units (SI) is used
throughout this manual. To convert it into the conventional system of units,
use the following conversion formula:
7.14 kgf/cm
2
= 0.7 MPa
or
1 kgf/cm
2
= 0.098 MPa
WARNING
CAUTION
Magnet of the motor rotor for the DCBL motor is magnetized.
Keep those who have electronic medical devices such as pace makers away from the magnet. These medical
devices may malfunction and it may cause fatal danger to those who have electronic medical devices.
Characteristics of this Manual
●
This manual serves daily operators and maintenance personnel of the compressor as
an instructive materials including its introduction, operation, daily control and periodic
servicing.
●
Before installation of the compressor, read the manual carefully and understand its
content and follow the instructions given by it when in use.
Also, prepare the manual near the machine to make it available at anytime, and refer
to it as the need arises.
●
If you have anything unclear or any question, please ask your dealer or your nearest
Hitachi regional office.
●
It is convenient for ordering spare part, periodic maintenance and overhaul if type and
serial number of the compressor are filled into the back cover of the manual.
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HITACHI accepts no responsibility for errors in translation of this manual from the
original English version.