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Hitachi DSP-45AT6N - User Manual

Hitachi DSP-45AT6N
144 pages
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INSTRUCTION MANUAL
DSP-45WT6N
DSP-55WT6N
DSP-75WT6N
DSP-55VWTN
DSP-75VWTN
[Without dryer type]
This INSTRUCTION MANUAL explains in detail
the important items that require attention;
observed as the following:
Always observe instructions of WARNING,
CAUTION and IMPORTANT, as they indicate
considerable risks to safety.
HITACHI Oil-Free Rotary Screw Air Compressor
Water-cooled
GRAPHIC DESCRIPTIONS:
Air-cooled
DSP-45AT6N
DSP-55AT6N
DSP-75AT6N
DSP-55VATN
DSP-75VATN
[Without dryer type]
WARNING
: Indicates warnings. If handled improp-
erly, death or severe injury could
result.
CAUTION
: Indicates cautions. If handled improp-
erly, injury and/or physical damage
could result.
Air-Cooled
: Indicates air-cooled type.
: Indicates water-cooled type.
: Indicates variable speed type.
Water-Cooled
IMPORTANT
:
Indicates information that needs attention,
other than WARNING and CAUTION.
: Indicates a reference page.
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.

Other manuals for Hitachi DSP-45AT6N

Questions and Answers

  • V
    valvarezSep 9, 2025
    What to do if Hitachi DSP-45AT6N shows overloading on the fan motor?
    • M
      Michael LoganSep 9, 2025
      To resolve an overloading issue with the fan motor on your Hitachi Air Compressor, press the RESET button. This issue is detected during operation.
  • C
    cartercaitlinAug 23, 2025
    What to do if Hitachi DSP-45AT6N Air Compressor shows PCB error?
    • G
      Gerald JohnsonAug 23, 2025
      If your Hitachi Air Compressor displays an error indicating PCB error (ROM1)(RAM1) main board memory error, disconnect and then reconnect the power. If the problem continues, replace the PCB.
  • A
    Amber MitchellAug 25, 2025
    What to do if my Hitachi DSP-45AT6N shows answer error of 52?
    • K
      kkruegerAug 25, 2025
      If you encounter an answer error of 52 (CONTACTOR ERR: 52) with your Hitachi Air Compressor, disconnect the power. Check the 52 for proper operation and the wires for tightness. This error is detected during operation or during an emergency stop in Y.
  • J
    Joseph BrooksAug 27, 2025
    What to do if Hitachi Air Compressor has an instantaneous power interruption?
    • A
      Amber HunterAug 27, 2025
      If your Hitachi Air Compressor experiences an instantaneous power interruption (1 to 5 seconds), restart the unit.
  • L
    Leah FerrellAug 27, 2025
    What to do if Hitachi Air Compressor has a brief instantaneous power interruption?
    • P
      Pam DavisAug 28, 2025
      If your Hitachi Air Compressor experiences a brief instantaneous power interruption (1 second or less), restart the unit.
  • J
    Jessica GonzalezAug 29, 2025
    What to do if Hitachi DSP-45AT6N Air Compressor 1st stage discharge air temperature is too high?
    • D
      dleeAug 29, 2025
      If the 1st stage discharge air temperature (HIGH DIS. TEMP. 1) is about 437 [419]°F or higher on your Hitachi Air Compressor, press the RESET button.
  • R
    roberthartmanSep 18, 2025
    What to do if Hitachi DSP-45AT6N Air Compressor shows battery out error?
    • J
      Jessica HudsonSep 18, 2025
      If your Hitachi Air Compressor displays a 'Battery Out' error due to low battery voltage, disconnect the power and replace the battery with a new one.
  • E
    Eugene GonzalezSep 22, 2025
    What to do if Hitachi DSP-45AT6N shows interstage pressure sensor error?
    • C
      Catherine MorenoSep 22, 2025
      If your Hitachi Air Compressor displays an interstage pressure sensor error (PRESS.SNSR ERR 1) because PS1 is disconnected, disconnect the power and check the pressure sensor wire for tightness.
  • N
    Nicholas JohnsonSep 8, 2025
    What to do if Hitachi DSP-45AT6N Air Compressor shows overloading on the main motor (fixed speed and Vtype)?
    • C
      christianolsenSep 8, 2025
      To resolve an overloading issue with the main motor on your Hitachi Air Compressor (fixed speed and V-type), press the RESET button. This issue is detected during operation.
  • A
    Anna StricklandSep 4, 2025
    What to do if Hitachi DSP-45AT6N Air Compressor oil temperature is too high?
    • T
      Theodore CampbellSep 5, 2025
      If the oil temperature (OIL HIGH TEMP) reaches 163 [158]°F or higher on your Hitachi Air Compressor, press the RESET button.

Summary

Instruction Manual: Hitachi Oil-Free Rotary Screw Air Compressor

How to Use This Instruction Manual

Critical Safety Warnings and Cautions

Highlights critical safety warnings and cautions for operation.

1. Safety Precautions

General Safety Warnings: Rotating Parts, Hot Surfaces, Electric Shock

Details critical safety warnings for rotating parts, hot surfaces, and electrical hazards.

Specific Warnings: Strong Magnetism, Hazardous Air, High Pressure

Covers specific warnings for magnetism, air quality, and high pressure.

Fire Prevention and Electrical Safety

Safety measures to prevent fire hazards and ensure electrical safety.

2. General Description

3. Operation Procedure

Capacity Control System: Load-Unload and AUTO Operation

Explains the standard load-unload and AUTO operation sequences.

4. Troubleshooting

Protective Device Functions and Indications

Lists protective devices, their detection methods, and indications during operation.

Troubleshooting Common Air Compressor Issues

Provides solutions for common problems like 'NOT start' and various shutdown conditions.

5. Installing and Piping the DSP

6. Startup Operation

Pre-Operation Checks and Preparations

Essential steps and checks before starting the air compressor.

Starting and During Operation Procedures

Step-by-step guide for starting, running, and checking the compressor.

Stopping Procedures and Initial OMR Regulator Settings

Instructions for stopping the compressor and setting the OMR regulator.

7. Wiring

Power Supply Equipment and Connection Requirements

Details on power supply, transformers, cables, and grounding requirements.

Wiring Diagrams and Specifications

List of wiring diagrams by model and control panel/LCD monitor specifications.

9. Maintenance

10. Cautions for Long Term Operation Suspension

Preventing Rusting During Extended Shutdowns

Instructions to prevent airend rusting during week-long or longer suspensions.

Hitachi DSP-45AT6N Specifications

General IconGeneral
BrandHitachi
ModelDSP-45AT6N
CategoryAir Compressor
LanguageEnglish

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