Hitachi HISCREW OSP-22M5ARI User Manual

What Marks Say:
INSTRUCTION MANUAL
●
This manual expresses the matters that need your attention as below.
●
Do not fail to observe “WARNING” and “CAUTION,” as they assume considerable
importance to safety.
: This is a warning. This assumes possible
death or severe injury to the operator if
handled wrongly.
: This is a caution. This assumes possible
injury to the operator and physical
damage, if handled wrongly.
: This means the things that need attention
other than WARNING and CAUTION.
MEMO
WARNING
: This means prohibition.
: This means convenient information
to know.
: This shows reference page number.
: This shows the information specific to
the models with a built-in air dryer.
IMPORTANT
☞
CAUTION
HITACHI ROTARY SCREW COMPRESSOR
Air-Cooled Type,
Before you start operating, be
sure to read this manual carefully
in order to operate the machine
safely and properly.
Also, prepare the manual near
the machine to make it available
at anytime, and refer to it as the
need arises.
Model : OSP-22S5AI OSP-22S5ARI
OSP-22S6AI OSP-22S6ARI
OSP-22
M 5AI OSP-22 M 5ARI
OSP-22
M 6AI OSP-22 M 6ARI
OSP-37S5AI OSP-37S5ARI
OSP-37S6AI OSP-37S6ARI
OSP-37
M 5AI OSP-37 M 5ARI
OSP-37
M 6AI OSP-37 M 6ARI
[Without a built-in air dryer] [With a built-in air dryer]
2000 Series

Hitachi HISCREW OSP-22M5ARI Specifications

General

Model	OSP-22M5ARI
Category	Air Compressor
Motor Power	22 kW
Free Air Delivery	3.7 m³/min
Noise Level	68 dB(A)
Weight	610 kg
Type	Screw Compressor
Power	22 kW
Working Pressure	7 bar
Voltage	380-400V
Dimensions (LxWxH)	1200 x 900 x 1200 mm

Summary

Introduction and Product Overview

Understanding Safety Marks and Symbols

Explains the meaning of various safety symbols and marks used in the manual.

Safety Precautions and Hazard Warnings

Rotating Parts and Pressurized System Safety

Warns against contact with moving parts and pressurized components like hot oil and air.

Equipment Operation and Environmental Hazards

Covers risks like respiratory issues, fire, electrical hazards, and flammable materials.

Compressor Components and Functions

Key Internal Component Functions Explained

Compressor Operation: Controls and Monitor

Instrument Panel Layout and Controls

Digital Monitor Data Display and History

Digital Monitor: Capacity Control Settings

Initial Compressor Start-Up Procedure

Pre-Start Checks and Power On Steps

Lists essential checks and steps for the first start-up and powering on.

Compressor Operation and Shutdown Steps

Outlines the procedure for operating and properly stopping the compressor.

Configuring Compressor and Dryer Controls

Setting Compressor Capacity Control Modes

Enabling Remote Operation and Dryer Settings

Details remote operation setup and dryer control configurations.

Daily Operation and Checks

Troubleshooting: Alarms, Shutdowns, and Override

Interpreting Alarm and Shutdown Indicators

Explains how alarm/shutdown lights and codes are displayed and what they signify.

Override Operation Procedures and Limitations

Details enabling override operation and conditions that prevent it.

Troubleshooting: Instrument Panel Error Codes

SHUTDOWN/ALARM Code Reference Guide

A comprehensive table mapping A/S codes to causes, actions, and reset procedures.

Additional Error Code Information and Dryer Faults

Continues the A/S code reference and covers dryer-specific troubleshooting.

Troubleshooting: Dryer-Specific Issues

Diagnosing Built-in Air Dryer Faults

Troubleshooting: Undisplayed Shutdowns

List of Shutdowns Not Displayed on Panel

System Components: Capacity Control

Capacity Control System Types and Logic

Details I-type, P-type, U-type control, condensate control, and ECOMODE functions.

Installation Instructions

Site Requirements, Space, and Ventilation

Piping Guidelines and Air Receiver Setup

Covers air receiver, discharge piping, dryer drain traps, and parallel operation.

Electrical Wiring: Power, Grounding, and Remote Control

Details power supply, cable selection, grounding, and remote operation wiring.

Standard Wiring Diagrams and Relay Outputs

Periodic Maintenance Schedule

Compressor Periodic Maintenance Guidelines

Maintenance Standards (A) and (B) Checklists

Details specific maintenance tasks and frequencies for different run hour conditions.

Component Maintenance and Replacement

Performance Checks: Relief Valve and Capacity Control

Filter Element Replacement Procedures

Guides on replacing oil and air intake filter elements.

Oil Separator Element and Belt Inspection

Covers oil separator element replacement and belt inspection.