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McQuay MWM09J - User Manual

McQuay MWM09J
90 pages
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MWM-J _ (ii)
Supercedes:
MWM-J-2010
Wall Mounted Split Systems
Models:
MWM09J/JR
MWM15J/JR
MWM20J/JR
MWM25J/JR
M5WM10J/JR
M5WM15J/JR
M5WM20J/JR
M5WM25J/JR
Catalog

Questions and Answers

  • A
    Andrew WarrenAug 6, 2025
    What to do if my McQuay Air Conditioner won't turn back on after a power outage?
    • M
      mcruzAug 6, 2025
      If your McQuay Air Conditioner doesn't restart after a power failure, the auto restart function may not be working. Turn on the unit using the wireless or wired controller.
  • M
    Mathew MullinsAug 14, 2025
    How to fix slow air flow in my McQuay MWM09J?
    • A
      angelica74Aug 14, 2025
      To improve slow airflow or insufficient cooling in your McQuay Air Conditioner: 1. Begin by cleaning the air filter. 2. Ensure all doors and windows are closed. 3. Check for and clear any blockages from the air suction and discharge areas of both the indoor and outdoor units. 4. Lower the temperature setting.
  • M
    mariapriceAug 21, 2025
    Why is the display on my McQuay Air Conditioner wireless controller dim?
    • C
      corey47Aug 21, 2025
      If your McQuay Air Conditioner's wireless controller display is dim, the batteries may be discharged or incorrectly inserted. Try replacing the batteries or reinserting them correctly.
  • J
    Jon ArmstrongAug 30, 2025
    Why does my McQuay MWM09J Air Conditioner compressor not start right away?
    • B
      Bryan JacobsonAug 30, 2025
      If your McQuay Air Conditioner's compressor doesn't start immediately after you turn on the unit, it could be due to a built-in protection against frequent starting. Allow 3 to 4 minutes for the compressor to start automatically.

Summary

Product Information

Nomenclature and Line-Up

Explains model codes and lists available units.

Refrigerant Circuit Diagrams

Illustrates refrigerant flow paths for cooling and heating.

Technical Specifications

Sound and Engineering Data

Lists sound levels, NC curves, and detailed engineering specifications.

Performance Data

Explains calculation methods and provides performance tables.

Installation, Operation & Maintenance

Operating Range

Specifies the allowable indoor and outdoor temperature ranges.

Installation Guidelines

Provides safety precautions and guidelines for installation.

Wiring, Charging & Refrigerant Handling

Details electrical setup, refrigerant handling procedures.

Service & Maintenance

Outlines recommended maintenance procedures and service access.

Troubleshooting Guide

Provides fault diagnosis, error codes, and diagnostic tips.

Unit Details and Parts

Outline, Dimensions, and Wiring Diagrams

Shows physical layout, dimensions, and electrical schematics.

Exploded View & Part Lists

Provides diagrams and lists of components for indoor and outdoor units.

Revision History

Revision Details

Lists revisions made to the manual with dates and page numbers.

McQuay MWM09J Specifications

General IconGeneral
ModelMWM09J
CategoryAir Conditioner
Cooling Capacity9000 BTU/h
RefrigerantR410A
Noise Level (Indoor)38 dB(A)
Net Weight (Indoor Unit)8 kg
Power Supply220-240V, 50Hz

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