Hitachi HISCREW V PLUS OSP-55VAN User Manual

OSP-55VAN
OSP-75VAN
●This INSTRUCTION MANUAL explains in detail
the important items that require attention;
observed as the following:
●
Always observe notations of WARNING, CAUTION
and IMPORTANT, as they indicate considerable
risks to safety.
NEX
NEX
T
T
series
series
GRAPHIC DESCRIPTIONS:
WARNING
：This is a warning. If handled improp-
erly, death or severe injury could
result.
CAUTION
：This is a caution. If handled improper-
ly, injury and/or physical damage
could result.
IMPORTANT
：This graphic is for items that need
attention, other than WARNING and
CAUTION.
：
This graphic is a page number reference.
INSTRUCTION MANUAL
OIL-FLOODED
ROTARY SCREW AIR COMPRESSOR
Air-Cooled Type
Prior to operation of this air compressor,
ensure that all operators read and
understand this INSTRUCTION MANUAL
completely, thereby operating it safely
and properly.
Place the INSTRUCTION MANUAL near
the air compressor to make it available
at any time, and refer to it as the need
arises.

Hitachi HISCREW V PLUS OSP-55VAN Specifications

General

Model	HISCREW V PLUS OSP-55VAN
Motor Power	55 kW
Drive Type	Direct Drive
Cooling Method	Air Cooled
Weight	1250 kg
Type	Rotary Screw Compressor
Discharge Pressure	0.7 MPa
Working Pressure	0.7 MPa
Noise Level	72 dB(A)

Summary

TO USE IN SAFETY

General Safety Warnings and Cautions

Important warnings and cautions regarding operation, electrical hazards, and component safety.

Caution for the DCBL Motors

Specific safety precautions for DCBL motors due to strong magnetic fields.

HOW TO OPERATE

3.1 Air Compressor Instrumentation

3.2 How to Use the Digital Monitor and its Controls

3.3 Initial Start-Up

Step-by-step instructions for powering on and starting the compressor for the first time.

3.4 How to Set Control Functions

Procedures for setting various operational parameters like pressure and modes via the digital monitor.

3.5 Daily Operation

DAILY CHECK

4.3 Lubricant Management

TROUBLESHOOTING

5.1 When ALARM or SHUTDOWN is Displayed

Explains how to interpret and respond to alarm and shutdown indicators on the unit.

5.2 SHUTDOWN/ALARM Indications on the Instrument Panel

Detailed table of error codes, causes, and actions for SHUTDOWN/ALARM indications.

5.3 A List of SHUTDOWNS Not Displayed on Instrument Panel

Lists symptoms and causes for shutdowns that do not trigger instrument panel alarms.

SYSTEM OF EACH COMPONENT

6.2 Capacity Control System

INSTRUCTIONS FOR INSTALLATION

7.3 Instructions When Installing

7.4 Instructions When Piping

7.5 Compressor Room Ventilation

7.6 Instructions on Electrical Wiring

Detailed guidance on connecting power, grounding, and electrical wiring safely.

PERIODIC MAINTENANCE

8.1 Periodic Maintenance for Compressor

8.2 Typical Maintenance Standard (A) of Air Compressor

Detailed maintenance schedule for units operating less than 6,000 hours annually.

8.3 Typical Maintenance Standard (B) of Air Compressor

Detailed maintenance schedule for units operating less than 3,000 hours annually.

8.6 Replacement of Oil Filter Element

Step-by-step guide for replacing the oil filter element.

8.7 Cleaning and Replacement of Air Intake Filter Element

Instructions for cleaning and replacing the air intake filter element.

8.9 Inspection and Replacement of Minimum Pressure/Check Valve

Guide for inspecting and replacing the minimum pressure/check valve.

8.10 Replacement of Oil Separator Element

Procedure for removing and replacing the oil separator element.

STANDARD SPECIFICATION

Compressor Specification

DCBL Controller Specification