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Gree GMV-450WM/B-X - User Manual

Gree GMV-450WM/B-X
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Owner's Manual
Air Conditioners
Models:
GMV-224WM/B-X
GMV-280WM/B-X
GMV-335WM/B-X
GMV-400WM/B-X
GMV-450WM/B-X
GMV-504WM/B-X
■
■
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GMV-2460WM/B-X
Thank you for choosing Air Conditioners, please read this owner’s manual carefully before
operation and retain it for future reference.If you have lost the Owner’s Manual, please contact
the local agent or visit www.gree.com or sent email to global@gree.com.cn or electronic
version.
GREE reserves the right to interpret this manual which will be subject to any change due to
product improvement without further notice.
GREE Electric Appliances, Inc. of Zhuhai reserves the final right to interpret this manual.
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Questions and Answers

  • W
    William HunterAug 9, 2025
    Why is my Gree GMV-450WM/B-X Air Conditioner not cooling or heating properly?
    • J
      Jesus BuchananAug 9, 2025
      If your Gree Air Conditioner isn't cooling or heating correctly, several factors could be the cause: * Check for any obstructions blocking the air intake or outlet of either the indoor or outdoor unit and remove them. * Ensure that the temperature, fan speed, and wind direction are appropriately set using the wireless or wired controller. * Make sure doors and windows are closed, and draw curtains or louvers to block direct sunlight. * Reduce the number of heat sources in the room. * Clean the filter if it's blocked with dirt.
  • M
    Michael WeaverAug 18, 2025
    What to do if my Gree GMV-450WM/B-X doesn’t run?
    • J
      Jessica SmithAug 18, 2025
      If your Gree Air Conditioner isn't running, consider these potential causes: * **Power Supply:** Ensure the unit is properly connected to a power supply. * **Voltage:** Verify that the voltage is within the specified rating range. * **Fuse/Breaker:** Check for a broken fuse or tripped breaker and replace the fuse or reset the breaker. * **Remote Controller Battery:** Replace the batteries in the remote controller if they are weak. * **Remote Controller Range:** Make sure you are within the remote controller's operational range (8m).
  • D
    Devon HodgesAug 29, 2025
    What to do if my Gree GMV-450WM/B-X runs but stops immediately?
    • S
      Samuel BergerAug 29, 2025
      If your Gree Air Conditioner starts but then stops right away, it might be due to a blocked air intake or outlet on either the indoor or outdoor unit. Remove any obstructions to resolve this.

Summary

Safety Precautions

Installation Procedure Compliance

Follow instructions for installation and service.

Professional Installation Requirement

Installation must be done by qualified personnel, not self-installation.

Power Supply Verification and Safety

Check power supply against nameplate and ensure power safety.

Earthing and Electrical Safety

Ensure unit is properly earthed to avoid electric shock.

Use of Exclusive Accessories and Parts

Use only exclusive accessories to prevent hazards.

Power Cord Specifications and Safety

Use adequate wire size; replace damaged cords with exclusive cables.

Welding and Nitrogen Charge Precautions

Wired Controller Connection Sequence

Refrigerant Leakage Management

Ventilate immediately if refrigerant leaks; avoid fire.

Power Cord Connection and Box Cover Safety

Secure the electric box cover after connecting the power cord.

Pressure Switch Protection Against Bypass

Pre-Use Piping and Wiring Check

Verify piping and wiring correctness before unit operation.

Air Inlet;Outlet Obstruction Hazard

Power Cord Plug;Unplug Operation Restriction

Do not start/stop by plugging/unplugging power cord directly.

Prohibition of Child Operation

Operation with Wet Hands Warning

Safety During Unit Cleaning

Turn off power before cleaning to prevent shock/injury.

Environmental Suitability Warning

Pre-Operation Electrical Charge and Halting

Response to Abnormal Operation

Power off and contact service center for any abnormal events like burning smell.

Prohibition of Unauthorized Unit Repair

Do not repair the unit yourself; contact authorized service center for faults.

Preparation before Installation

Installation Site Guidelines

Piping Work Requirements

Installation Instruction

Connection Pipe

Installation of the Connection Pipe

Electric Wiring

Wiring precautions

Wiring of power cord

Connection of power cord

System Communication

Connection Method and Steps for System Communication

Check Items after Installation and Trial Run

Check Items after Installation

A checklist of items to verify after unit installation.

Trial Run

Procedures and guidelines for conducting the initial trial run of the system.

Common Malfunction and Troubleshooting

Error Indication

Gree GMV-450WM/B-X Specifications

General IconGeneral
BrandGree
ModelGMV-450WM/B-X
CategoryAir Conditioner
LanguageEnglish

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