Gree GMV-ND45ZA/A-T - User Manual

Questions and Answers

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Rebecca SharpJul 25, 2025
Why is my Gree GMV-ND45ZA/A-T Air Conditioner not cooling properly?
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  Richard RobertsJul 25, 2025
  Several factors can cause a Gree Air Conditioner to have a poor cooling effect. The filter might be dirty and needs cleaning or replacement. The room may have too heavy a heat load, like too many people. Doors or windows may be open, letting warm air in. The indoor unit's inlet and outlet could be blocked. The temperature setting might be too high, so lower it. Finally, there might not be enough refrigerant due to a leak. Check refrigerant levels and fix any leaks.
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williamssusanJul 31, 2025
Why is my Gree GMV-ND45ZA/A-T Air Conditioner not heating well?
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  Nicole BryantJul 31, 2025
  A Gree Air Conditioner might have a poor heating effect due to several reasons. The filter could be dirty, so clean or replace it. An open door or window could be letting cold air in, so close them. The set temperature might be too low, so increase it. Also, insufficient refrigerant, possibly from a leak, could be the cause. Check refrigerant levels and fix any leaks.
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Anthony GutierrezAug 6, 2025
What to do if my Gree GMV-ND45ZA/A-T stops running after a short time?
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  chad24Aug 6, 2025
  If your Gree Air Conditioner stops after running for a while, it might be because the inlet or outlet of the outdoor (ODU) or indoor unit (IDU) are blocked. Remove any obstacles that are blocking the inlet or outlet.
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Ashley TorresAug 12, 2025
What to do if my Gree Air Conditioner won't start?
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  Kyle WuAug 12, 2025
  If your Gree Air Conditioner won’t start, there are several things to check: * Make sure the power supply is properly connected. * Check if the circuit breaker has tripped due to an electrical leakage. * Verify that the input voltage is within the acceptable range. If these steps don't resolve the issue, the main PC-board may be defective, and you should contact an authorized service center.
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Anthony WalkerAug 18, 2025
Why doesn't the indoor fan start during heating in my Gree GMV-ND45ZA/A-T Air Conditioner?
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  Alyssa JacksonAug 18, 2025
  The indoor fan of your Gree Air Conditioner might not start immediately during heating for two reasons. First, the fan may not operate until the heat exchange becomes hot to prevent delivering cool air. In this case, wait for the heat exchange to become hot before the fan operates. Second, during defrosting, the fan might stop because the system switches to cooling mode, also to prevent delivering cool air. Allow the defrosting process to complete before the fan resumes operation.

Summary

User Guidance and Precautions

General User Instructions

Provides essential instructions and warnings for safe and correct operation of the appliance, covering supervision and usage conditions.

Exception Clauses

Manufacturer Liability Limitations

Details conditions under which the manufacturer disclaims responsibility for product issues or damage due to misuse or external factors.

Safety Notices

General Safety Precautions

Covers critical warnings regarding installation, operation, grounding, and environment to prevent severe damage or injury.

Product Introduction

Key Components Identification

Identifies and labels the main parts of the concealed floor standing air conditioning unit.

Rated Working Conditions

Specifies the operating conditions for cooling and heating, including indoor and outdoor temperatures.

Preparations for Installation

Standard Installation Fittings

Lists and describes the standard parts supplied for the installation of the air conditioner unit.

Installation Location Guidelines

Provides criteria for selecting a suitable and safe location for the air conditioner installation.

Communication Line Selection for Wired Controller

Details the requirements for selecting the correct communication cable for indoor units and wired controllers.

Communication Line Selection for Units

Specifies the communication cable requirements when connecting indoor units to outdoor units.

Electrical Wiring Requirements

Outlines the necessary specifications for power cords, air switches, and wire sizing for safe operation.

Installation Instructions

Indoor Unit Installation Procedure

Step-by-step guide for mounting and securing the indoor unit, including drilling and bolt installation.

Refrigerant Pipe Connection

Details the correct method for connecting the refrigerant pipes to the indoor unit.

Drainage System Installation and Testing

Instructions for installing the condensate drain pipe and testing the drainage system for proper function.

Air Duct Installation Guidelines

Provides instructions for connecting and insulating air ducts to the unit's air outlet.

Wired Controller Installation

Guidance on installing the wired controller for operating the air conditioning system.

Wiring Work Procedures

Wire and Terminal Connection

Explains how to properly connect wires to terminal boards and terminals using appropriate tools.

Power Cord Connection

Details the procedure for connecting the main power cord to the unit's electrical system.

Communication Wire Connection (Units)

Describes how to connect the communication cables linking indoor and outdoor units.

Wired Controller Communication Connection

Instructions for connecting the communication wire for the wired controller to the indoor unit.

Wired Controller Network Setup

Explains the network setup for connecting wired controllers to multiple indoor units.

Routine Maintenance

Filter Cleaning Procedure

Step-by-step guide for removing, cleaning, and reinstalling the air conditioner filters.

Pre-Seasonal Maintenance Checks

Lists checks to perform before starting the air conditioner for the season.

Post-Seasonal Maintenance

Describes actions to take after the air conditioner season ends, including power-off.

Indoor Unit Error Code Table

Troubleshooting Common Issues

Gree GMV-ND45ZA/A-T Specifications

General

Model	GMV-ND45ZA/A-T
Cooling Capacity	4.5 kW
Heating Capacity	5.0 kW
Refrigerant	R410A
Noise Level (Outdoor Unit)	52 dB
Type	Air Conditioner
Energy Efficiency Ratio (Cooling)	3.2
Power Supply	220-240V, 50Hz
Outdoor Unit Noise Level	52 dB
Outdoor Unit Weight	35 kg
Power Source	Electric
Noise Level (Indoor Unit)	24 dB