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Gree GMV-ND45T/A-T - User Manual

Gree GMV-ND45T/A-T
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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 nal right to interpret this manual.
Multi Variable Air Conditioners
Cassette Type Indoor Unit
Models:
GMV-ND28T/A-T
GMV-ND36T/A-T
GMV-ND45T/A-T
GMV-ND50T/A-T
GMV-ND56T/A-T
GMV-ND63T/A-T
GMV-ND71T/A-T
GMV-ND80T/A-T
GMV-ND90T/A-T
GMV-ND100T/A-T
GMV-ND112T/A-T
GMV-ND125T/A-T
GMV-ND140T/A-T
GMV-ND160T/A-T
Owner's Manual
Copyright 2018. This translation is property of GREE PRODUCTS SL. All rights reserved. Total or partial reproduction without its express authorization is prohibited.

Table of Contents

Other manuals for Gree GMV-ND45T/A-T

Preview: Service Manual
Service Manual227 pages

Questions and Answers

  • K
    Kenneth MorenoAug 20, 2025
    Why is my Gree GMV-ND45T/A-T Air Conditioner not cooling properly?
    • R
      Richard MartinezAug 20, 2025
      Several factors can cause a Gree Air Conditioner to have a poor cooling effect. Check the following: * Ensure the filter is clean; if dirty, clean or replace it. * Reduce the heat load in the room by decreasing the number of people or heat-generating devices. * Make sure all doors and windows are closed. * Verify that the inlet and outlet of the indoor unit are not blocked. * Lower the setting temperature. * Check refrigerant levels and refill if necessary, as insufficient refrigerant can also cause poor cooling.
  • S
    smithbobbyAug 22, 2025
    How to fix a Gree GMV-ND45T/A-T Air Conditioner that won't start?
    • T
      tina98Aug 22, 2025
      If your Gree Air Conditioner won’t start, consider these potential causes: * Check the power supply to ensure it is properly connected. * Inspect the circuit breaker; tripping may be caused by leakage of electricity. * Ensure the input voltage is adequate. * If the above steps don't resolve the issue, there may be a defect with the main PC-board; contact a service center for inspection.
  • E
    Edward WaltonAug 25, 2025
    Why is my Gree GMV-ND45T/A-T Air Conditioner not cooling well?
    • M
      Marie SmithAug 25, 2025
      Several factors can cause a Gree Air Conditioner to have a poor cooling effect. The filter might be dirty, so try cleaning or replacing it. The room might have too much heat, so reduce the heat load. Make sure all doors and windows are closed. Check that the indoor unit's inlet and outlet aren't blocked. The temperature setting might be too high, so lower it. Finally, there might not be enough refrigerant due to a leak, so check for leaks and refill if needed.
  • O
    ojohnsonAug 26, 2025
    How to fix mode shock in Gree Air Conditioner?
    • S
      sydney06Aug 26, 2025
      If your Gree Air Conditioner is experiencing mode shock, try resetting the unit to eliminate the mode shock.
  • A
    Ashley RobertsAug 27, 2025
    Why is my Gree Air Conditioner's heating not working well?
    • T
      trobersonAug 27, 2025
      If your Gree Air Conditioner is not heating effectively, several factors could be responsible: * A dirty filter can restrict airflow; clean or replace it. * An open door or window can let heat escape; ensure all doors and windows are closed. * If the setting temperature is too low, increase it to your desired warmth level. * Low refrigerant levels due to leakage can also reduce heating performance; check refrigerant levels and refill if necessary.
  • S
    Stephanie MoonAug 29, 2025
    What to do if my Gree Air Conditioner won't start?
    • C
      Charles CaseAug 29, 2025
      If your Gree Air Conditioner won't start, begin by checking the power supply connection. If that's not the issue, reset the circuit breaker, as it may have tripped due to a leakage of electricity. Also, ensure the input voltage is correct. If none of these steps work, the main PC-board may be defective, and you should contact an authorized service center for repair.
  • M
    Monica JacksonAug 31, 2025
    Why is my Gree Air Conditioner not heating properly?
    • E
      Ethan FranklinAug 31, 2025
      A Gree Air Conditioner may have a poor heating effect due to several reasons. The filter may be dirty, so clean or replace it. Ensure all doors and windows are closed. The temperature setting might be too low, so increase it. There could also be insufficient refrigerant, possibly from a leak, so check for refrigerant leaks and refill as necessary.
  • P
    Patricia SmithSep 2, 2025
    What to do if my Gree GMV-ND45T/A-T shows a communication malfunction?
    • M
      Michelle MooreSep 2, 2025
      If your Gree Air Conditioner displays a communication malfunction, the first step is to check the communication wiring to ensure it is properly connected.
  • W
    William VelasquezSep 4, 2025
    What to do if Gree Air Conditioner shows water overflow protection?
    • C
      Carl HubbardSep 4, 2025
      If your Gree Air Conditioner is experiencing water overflow protection, examine the water drainage system for any blockages that may be causing the issue.
  • A
    Andre PowellSep 6, 2025
    Why does my Gree GMV-ND45T/A-T Air Conditioner show indoor fan protection?
    • N
      Natalie BrooksSep 6, 2025
      If your Gree Air Conditioner displays an indoor fan protection error, ensure the fan is not obstructed or frozen, which may be triggering the protection mechanism.

Summary

Safety Precautions

Product Introduction

2.1 Names of Key Components

Identifies and illustrates the main parts of the indoor unit for reference.

2.2 Rated Working Condition

Specifies indoor and outdoor operating conditions for cooling and heating modes.

2.3 Unit Functions

Lists the various functions of the unit and their controller compatibility.

Preparations for Installation

3.1 Standard Fittings

Details the list of standard accessories provided for the installation process.

3.2 Installation Position Selection

Provides guidelines for choosing the optimal location for unit installation.

3.3 Requirements of Communication Wire Selection

Specifies the types and lengths of communication wires for system connection.

3.4 Wiring Requirement

Details power cord size and air switch capacity requirements for safe operation.

Installation Instructions

4.1 Indoor Unit Installation

Covers ceiling opening dimensions, suspension bolt position, and unit suspension.

4.2 Refrigerant Pipe Connection

Explains how to connect refrigerant pipes correctly, including torque specifications.

4.3 Drainage Pipe Installation and System Testing

Details drainage pipe installation, gradient, and system testing procedures.

4.4 Panel Installation

Describes the process of attaching the decorative panel to the indoor unit.

4.5 Wired Controller Installation

Guides on installing the optional wired controller according to its manual.

Wiring Work

5.1 Wire and Terminal Connection

Instructions for connecting wires to terminals and using appropriate tools.

5.2 Power Cord Connection

Details on how to connect the power cord for unified power supply.

5.3 Indoor and Outdoor Unit Communication Wire Connection

Explains connecting communication wires between indoor and outdoor units.

5.4 Wired Controller Communication Wire Connection

Details on connecting communication wires for the wired controller.

5.5 Wired Controller and Indoor Unit Network Connection

Explains network connection logic for wired controllers and indoor units.

Routine Maintenance

6.1 Filter Cleaning

Instructions on how to remove, clean, and dry the air filters.

6.2 Pre-Seasonal Maintenance

Checks to perform before the start of the cooling or heating season.

6.3 Post-Seasonal Maintenance

Steps to take after the unit is no longer in use for the season.

Indoor Unit Error Codes

Troubleshooting

Gree GMV-ND45T/A-T Specifications

General IconGeneral
BrandGree
ModelGMV-ND45T/A-T
CategoryAir Conditioner
LanguageEnglish

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