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Gree GMV-ND28ZD/B-T - User Manual

Gree GMV-ND28ZD/B-T
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Owner's Manual
Original Instructions
Commercial Air Conditioners
Multi Variable Air Conditioners
Floor Ceiling Type Indoor Unit
Models:
GMV-ND28ZD/B-T
GMV-ND36ZD/B-T
GMV-ND50ZD/B-T
GMV-ND56ZD/B-T
GMV-ND63ZD/B-T
GMV-ND71ZD/B-T
GMV-ND90ZD/B-T
GMV-ND112ZD/B-T
GMV-ND125ZD/B-T
GMV-ND140ZD/B-T
GMV-ND160ZD/B-T

Table of Contents

Questions and Answers

  • J
    Joshua HamiltonAug 6, 2025
    Why is my Gree GMV-ND28ZD/B-T Air Conditioner not cooling properly?
    • C
      Christopher GonzalezAug 6, 2025
      If your Gree Air Conditioner isn't cooling effectively, consider these potential causes: * The filter might be dirty. * The room may have a heavy heat load, such as too many people. * A door or window could be open. * The inlet and outlet of the indoor unit might be blocked. * The set temperature may be too high. * The room temperature sensor might not be working well.
  • T
    Trevor RiosAug 12, 2025
    Why is my Gree GMV-ND28ZD/B-T Air Conditioner heating poorly?
    • P
      Paul PierceAug 12, 2025
      If your Gree Air Conditioner isn't heating well, check these possible issues: * The filter may be dirty. * A door or window could be open. * The set temperature might be too low. * There could be refrigerant leakage. * The outdoor temperature might be below -5°C. * There may be an abnormality in the control circuit.
  • T
    Timothy BrownAug 18, 2025
    How to troubleshoot a Gree GMV-ND28ZD/B-T that won't start?
    • M
      Mia DillonAug 18, 2025
      If your Gree Air Conditioner won’t start, check the following: * Ensure the power supply is connected. * Look for a tripped circuit breaker due to electricity leakage. * Verify that the input voltage isn't too low. * Confirm the operation button is not closed. * Inspect for an abnormal control loop.
  • C
    Candace SandersAug 25, 2025
    What to do if my Gree Air Conditioner stops after running for a while?
    • S
      Steven MacdonaldAug 25, 2025
      If your Gree Air Conditioner unit stops after running for a while, it could be due to: * An obstacle in front of the condenser. * An abnormal control loop. * Setting the unit to cooling mode when the outdoor temperature is above 43°C.
  • W
    William AndersonAug 30, 2025
    What to do if the indoor fan on my Gree Air Conditioner doesn’t start during heating?
    • J
      Juan WallaceAug 30, 2025
      If the indoor fan of your Gree Air Conditioner doesn’t start during heating, it could be due to: * The tube temperature sensor head not being positioned correctly. * The tube temperature sensor head not being inserted well. * Broken wiring of the tube temperature sensor head. * A capacitor leaking electricity.

Summary

To Users

Exception Clauses

1 Safety Notices (Please be sure to abide)

General Safety Warnings and Symbols

Covers warning symbols, notices, and general safety alerts for proper unit operation.

Installation and Equipment Safety

Addresses installation site, qualified personnel, grounding, and electrical safety precautions.

Operational Safety Practices

Details safe usage, maintenance, and handling of the unit to prevent hazards.

2 Product Introduction

2.1 Names of Key Components

Identifies and illustrates the main parts of the indoor unit and its accessories.

2.2 Rated Working Condition

Lists the specified temperature conditions for cooling and heating operations.

3 Preparations for Installation

3.1 Standard Fittings

Details the provided accessories and their respective uses for installation.

3.2 Installation Position Selection

Provides guidelines for selecting an optimal and safe location for unit installation.

3.3 Requirements of Communication Wire Selection

Outlines specifications for selecting communication cables for indoor units and outdoor units.

3.4 Wiring Requirement

Details power cord specifications and air switch capacity for safe electrical connections.

4 Installation Instructions

4.1 Indoor Unit Installation

Covers the process of mounting and installing the indoor unit.

4.1.1 Indoor Unit Dimension and Suspension Bolt Position

Provides dimensions and suspension bolt details for indoor unit mounting.

4.1.2 Suspend the Indoor Unit

Details the steps for hanging and securing the indoor unit during installation.

4.1.3 Leveling

Explains how to ensure the indoor unit is properly leveled using a water level test.

4.2 Refrigerant Pipe Connection

Guides the connection of refrigerant pipes, including torque specifications.

4.3 Drainage Pipe Installation and Drainage System Testing

Covers the installation and testing procedures for the condensate drainage system.

4.3.3 Test of Drainage System

Explains how to perform a water test on the drainage system to check for leaks.

5 Wiring Work

5.1 Connection of Wire and Patch Board Terminal

Details the procedures for connecting wires to terminals and patch boards.

5.2 Power Cord Connection

Explains how to safely connect the power cord to the unit, including circuit breaker requirements.

5.3 Connection of Communication Wire between Indoor Unit and Outdoor Unit (or Indoor Unit)

Describes how to connect communication wires between indoor and outdoor units.

5.4 Connection of Communication Wire for Wired Controller

Outlines the process for connecting communication wires to the wired controller.

5.5 Wiring Instructions of Wired Controller and Indoor Units Network

Provides guidance on wiring network configurations for wired controllers and indoor units.

6 Routine Maintenance

6.1 Maintenance before the Seasonal Use

Lists checks to perform on the unit before the start of the seasonal operating period.

6.2 Maintenance after the Seasonal Use

Details procedures for preparing the unit for long-term storage or the off-season.

7 Table of Error Codes for Indoor Unit

8 Troubleshooting

Gree GMV-ND28ZD/B-T Specifications

General IconGeneral
BrandGree
ModelGMV-ND28ZD/B-T
CategoryAir Conditioner
LanguageEnglish

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