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Coaire CHSA-20M - User Manual

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COAIRE M-Series
EXTROLLER Control System
MAINTENANCE MANUAL AND PARTS LIST
MODEL
CHSA-7.5M CHSA-10M
CHSA-15M CHSA-20M
SERIAL NO. :
MODEL NO. :
MODEL CHSA-15CHSA-20M
COAIRE TECHNOLOGIES, CORPORATION
All rights reserved Printed in USA
ROTARY SCREW AIR COMPRESSORS
For proper and safe use of the compressor, please follow all instructions and safety precautions as identified in
this manual, along with general safety regulations and practices.

Table of Contents

Questions and Answers

  • M
    Michael EdwardsAug 8, 2025
    Why does my Coaire Air Compressor have high oil consumption?
    • E
      Erica HowellAug 8, 2025
      High oil consumption or discharge air containing oil mist in your Coaire Air Compressor can be due to several factors. If the oil level in the separator tank is too high, remove some oil. If there's an oil leak from the mechanical seal, consult the distributor. Also, try retightening components, replacing parts, correcting issues, changing the oil after flushing, or readjusting setting points.
  • T
    taylormaysAug 15, 2025
    What to do if my Coaire Air Compressor has high discharge temperature?
    • S
      Sean ScottAug 15, 2025
      High discharge temperature in your Coaire Air Compressor, leading to safety shutdowns, can be caused by high ambient temperature. Improving room ventilation can help. Other solutions include adding oil, cleaning or replacing components, checking or replacing parts, checking or replacing the fan and filter, and changing the oil.
  • K
    krystaltravisAug 20, 2025
    How to reduce noise and vibration in my Coaire Air Compressor?
    • S
      Scott FriedmanAug 20, 2025
      Noise and vibration in your Coaire Air Compressor can stem from loose components and joints; retighten them. If the noise is coming from the air end, consult the distributor. Other solutions include adjusting tension or replacing parts, correcting the installation, and cleaning the fan.
  • G
    Gregory EwingAug 27, 2025
    What to do if my Coaire Air Compressor fails to unload properly?
    • M
      Michael LaneAug 27, 2025
      If your Coaire Air Compressor is experiencing failure to unload properly, try adjusting the settings. If that doesn't work, consult the distributor. You can also try cleaning or replacing the component.
  • D
    Deanna RochaSep 2, 2025
    How to troubleshoot a Coaire Air Compressor that won't start?
    • P
      Patricia MartinSep 2, 2025
      If your Coaire Air Compressor fails to start or restart, try resetting it. Inspect the power source, and consider replacing or repairing/replacing components. Also, tighten or replace parts as needed.

Summary

Safety and Precautions

Safety Precautions and Warnings

Essential safety guidelines and hazard alerts for compressor operation.

General Information

Unit Overview and Compression Process

System Flow Paths and Specifications

Installation and Wiring Requirements

Guidelines for unit setup, piping, and electrical connections.

Operating Instructions

Start-Up, Daily Operation, and Settings

Procedures for initial startup, daily checks, and factory settings.

Functional Descriptions

Compressor Components and Systems

Scheduled Maintenance

Maintenance Schedule, Lubrication, and Draining

Recommended intervals, oil management, and condensation removal.

Troubleshooting

Symptoms, Causes, and Solutions

Common issues, causes, and remedies for compressor problems.

Corrective Maintenance

Filter, Seal, and Valve Maintenance

Procedures for servicing filters, seals, and valves.

Belt, Cooler, and Safety Valve Maintenance

Forms

Coaire CHSA-20M Specifications

General IconGeneral
ModelCHSA-20M
CategoryAir Compressor
BrandCoaire
Horsepower2 HP
Tank Size20 Gallon
Maximum Pressure125 PSI
Voltage120V
Pump TypeOil-Free
Noise Level78 dBA
Tank Capacity20 Gallon

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