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mycom 4032MSC - User Manual

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2201Q4JE-MY-C9-N_2018.01.
Compound 2-stage Screw Compressor
4032 * * C Instruction Manual
4032XLLLC/4032LLLLC/4032LLLC/4032LLMC/4032LLSC
4032LLC/4032LMC/4032LSC/4032MLC/4032MMC/4032MSC
4032SLC/4032SMC/4032SSC
CAUTION
Before operating, servicing, or inspecting this product, read this manual thoroughly to fully
understand the contents.
Keep this Instruction Manual in a safe, designated place for future reference whenever the
manual is needed.
Specifications of this product and contents of this manual are subject to change without
prior notice due to technical improvements, and the like.

Table of Contents

Questions and Answers

  • C
    Christina WellsAug 22, 2025
    What to do if my mycom Air Compressor stops immediately after startup?
    • R
      Rachel McclainAug 22, 2025
      If your mycom Air Compressor stops immediately after starting, it may be due to insufficient refrigerant flow. This could be caused by insufficient refrigerant – check for leaks, stop them, and add refrigerant, paying attention to moisture in the system. Another cause could be insufficient liquid supply – inspect the expansion valve and liquid supply strainer and take necessary actions. Also, inspect devices and parameters of the expansion valve aperture adjusting mechanism. Heat exchange failure in the heat exchanger, such as malfunction of defrosting, can also cause this issue; investigate the cause and take necessary actions. Finally, it could be due to the failure of a low-pressure protection device, pressure sensor, relay, etc.; identify and replace any defective devices.
  • W
    William BarajasNov 6, 2025
    What to do if my mycom Air Compressor does not start up?
    • C
      Christopher SuttonNov 7, 2025
      If your mycom Air Compressor doesn't start, it could be due to several reasons. It's often because the unit wasn't turned on after inspection; using a checklist for post-inspection actions can help. Another common cause is the activation of the overload protection circuit – refer to the motor's operation manual for details. Other potential causes include a micro-switch failure (replace it), loosening of the micro-switch or cam set screw (adjust and tighten, using thread locking agent if needed), improper oil flow control valve adjustment (readjust), leaks or clogs in piping or the solenoid valve (remove the cause and check/replace the oil), failure of oil pressure protection devices (identify and replace defective devices), a clogged pressure pipe (remove the clogging and check/replace the...
  • J
    johnaguilarNov 11, 2025
    Why is my mycom Air Compressor generating abnormal vibration and/or sound?
    • K
      Kaitlin WhiteNov 11, 2025
      Abnormal vibration and sound in your mycom Air Compressor can stem from several issues. If the shaft vibration value is high, realign the shaft, performing a hot alignment for monocoque units. Unevenly tightened lock nuts or thrust bearing glands can also cause this; tighten the glands evenly if the nuts aren't loose and the bearing is intact. Check the thrust bearing for worn rolling elements or a missing lock washer tooth, replacing it and adjusting end clearance and shaft runout if necessary. Continuous low-load operation (capacity control not greater than 30%) can also be a factor, as lubricating oil isn't discharged effectively, so avoid this where possible. Finally, refrigerant liquefying and staying inside upstream piping when the equipment is stopped can cause vibration; identify a...
  • C
    Christopher SmithNov 15, 2025
    What causes unusually high pressure (abnormal discharge pressure) in my mycom Air Compressor?
    • L
      lynnaustinNov 16, 2025
      Unusually high pressure in your mycom Air Compressor can be caused by contaminated or blocked heat transmission tubes and/or fins, which can be resolved by cleaning, possibly with chemicals. Other causes include water loss of the water pump or failure in the fan motor, thermo switch, water spraying pipes, cooling water pumps, etc. - identify and replace any defective devices. Check for faulty adjustment of cooling water/brine flow and readjust the valve, or investigate the cause if an automatic control valve is used. Insufficient flow of cooling water can also be a factor; inspect filters for clogging, check for leaks, and inspect water supply routes. If frozen, improve heat insulation or increase the temperature. A deficiency in heat exchanger performance can also contribute; re-examine o...
  • H
    Heather MurphyNov 26, 2025
    Why is the intermediate pressure unusually high in my mycom Air Compressor?
    • W
      Wesley AndersonNov 26, 2025
      An unusually high intermediate pressure in your mycom Air Compressor may occur if the heat load on the load side is higher than the design value; inspect the conditions on the load side, such as warehousing volume and door activity, and take corrective measures. It could also be due to a malfunction of the suction pressure control mechanism; replace the pressure sensor if there's a pressure sensing failure, and consider changing the pressure pick-up position if it's improper. Other potential causes include failure or internal leakage of the intermediate liquid supply expansion valve (repair or replace it), malfunction of compressor's capacity control (see Item No. 11 "Capacity control malfunction"), excessive wear or sliding part damage on the compressor's high-stage (overhaul the compress...
  • H
    Hannah ReidDec 3, 2025
    What causes low oil pressure (low lubricating oil supply pressure) in my mycom Air Compressor?

    Summary

    MYCOM Compound 2-stage Screw Compressor 4032**C Instruction Manual

    Warranty and Disclaimer

    Important Information

    Important Information for Safe Use of This Product

    Crucial safety guidelines for users, covering hazards and precautions.

    Chapter 1 Safety

    Strict Requirements and Prohibitions

    Lists mandatory actions and prohibitions for safe operation and maintenance.

    Chapter 2 Compressor Specifications and Structure

    Chapter 3 Installation

    Shaft Alignment between the Compressor and Driving Machine

    Crucial procedure for aligning compressor and drive shafts for proper operation.

    Chapter 4 Compressor and Package Unit Operation

    Precautions for Operation

    General safety guidelines and best practices for operating the compressor.

    Chapter 5 Maintenance and Inspection

    Precautions for Maintenance and Inspection

    Essential safety guidelines and preparation for all maintenance activities.

    Disassembly and Inspection

    Detailed procedures for disassembling and inspecting compressor components.

    Reassembly

    Step-by-step instructions for reassembling the compressor after maintenance.

    Chapter 6 Troubleshooting

    Compressor does not start up

    Troubleshooting steps for issues preventing compressor startup.

    mycom 4032MSC Specifications

    General IconGeneral
    Brandmycom
    Model4032MSC
    CategoryAir Compressor
    LanguageEnglish

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