Gree GMV-ND56PHS/B-T - User Manual

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Owner's Manual

Original Instructions

Commercial Air Conditioners

Multi Variable Air Conditioners

Ducted Type Indoor Unit

Models:

GMV-ND22PHS/B-T GMV-ND25PHS/B-T GMV-ND28PHS/B-T GMV-ND32PHS/B-T

GMV-ND36PHS/B-T GMV-ND40PHS/B-T GMV-ND45PHS/B-T GMV-ND50PHS/B-T

GMV-ND56PHS/B-T GMV-ND63PHS/B-T GMV-ND71PHS/B-T GMV-ND80PHS/B-T

GMV-ND90PHS/B-T GMV-ND100PHS/B-T GMV-ND112PHS/B-T GMV-ND125PHS/B-T

GMV-ND140PHS/B-T GMV-ND160PHS/B-T GMV-ND180PHS/B-T

Table of Contents

Other manuals for Gree GMV-ND56PHS/B-T

Service Manual227 pages

Questions and Answers:

S
Sarah RollinsAug 18, 2025
Why is my Gree GMV-ND56PHS/B-T not cooling properly?
- D
  Derek FisherAug 18, 2025
  If your Gree Air Conditioner isn't cooling well, several factors could be at play. Ensure the filter is clean, as a dirty filter restricts airflow. Reduce the heat load in the room by minimizing the number of people or heat-generating devices. Check that all doors and windows are closed to prevent warm air from entering. Clear any obstructions from the indoor unit's inlet and outlet. Make sure the set temperature isn't too high; lower it for better cooling. Finally, insufficient refrigerant due to leaks can cause poor cooling, so check refrigerant levels and recharge if needed.
H
Heidi ValdezAug 20, 2025
How to troubleshoot a Gree Air Conditioner that won't start?
- J
  jennifer60Aug 21, 2025
  If your Gree Air Conditioner isn't starting, first, check if the power supply is properly connected. Second, examine the circuit breaker to ensure it hasn't tripped due to a leakage of electricity. Also, make sure the input voltage meets the required level. If none of these steps work, the main PC-board may be defective, and you should contact an authorized service center for repair.
A
Andrew RobbinsAug 23, 2025
Why is my Gree Air Conditioner not heating well?
- N
  Nicholas HayesAug 23, 2025
  If your Gree Air Conditioner's heating isn't effective, start by cleaning or replacing the dirty filter. Ensure all doors and windows are closed to prevent heat loss. If the set temperature is too low, increase it. Also, check for refrigerant leaks and recharge if necessary, as insufficient refrigerant can cause poor heating.
C
Colleen BlackAug 26, 2025
What to do if my Gree GMV-ND56PHS/B-T Air Conditioner stops running after a short time?
- S
  Stephanie DavisAug 26, 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 these to ensure proper airflow.
L
lisayoungAug 27, 2025
How to fix mode shock in Gree Air Conditioner?
- R
  Richard PattonAug 27, 2025
  If your Gree Air Conditioner is experiencing mode shock, try resetting the unit to eliminate the mode shock.
D
Darlene SalinasAug 30, 2025
Why doesn't the indoor fan start up on my Gree GMV-ND56PHS/B-T during heating?
- T
  Terri DanielAug 30, 2025
  When heating starts, the indoor unit (IDU) fan might not operate immediately. This is to prevent cool air from being delivered until the heat exchange warms up; allow time for the heat exchange to warm up. Also, during defrosting, the IDU fan may stop because the system switches to cooling mode to prevent cool air from being delivered; the fan will resume operating after defrosting is complete.
S
Samantha HernandezSep 1, 2025
What to do if my Gree GMV-ND56PHS/B-T shows a communication malfunction?
- S
  stacy75Sep 1, 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.
D
Darren WiseSep 3, 2025
What to do if Gree GMV-ND56PHS/B-T Air Conditioner shows water overflow protection?
- M
  Michael RaySep 3, 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.
G
gwarnerSep 5, 2025
Why does my Gree Air Conditioner show indoor fan protection?
- O
  oconnellrobertSep 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.
C
Crystal SmithSep 8, 2025
Why Gree GMV-ND56PHS/B-T Air Conditioner shows freeze prevention protection?
- J
  Jason HudsonSep 8, 2025
  If your Gree Air Conditioner is showing freeze prevention protection, ensure that the unit is not exposed to extreme cold, as this could trigger the protection mechanism.

Gree GMV-ND56PHS/B-T Specifications

General

Brand	Gree
Model	GMV-ND56PHS/B-T
Category	Air Conditioner
Language	English

Summary

Safety Precautions and Warnings

General Safety Warnings

Covers warnings about severe, slight, prohibited, and mandatory operations.

Installation Environment & System Compatibility

Warns against specific environments and ensures system compatibility.

Grounding & Refrigerant Safety

Emphasizes proper grounding and R410A refrigerant precautions.

Electrical & Unit Operation Safety

Power Cord & Electrical Safety

Details power cord requirements, replacement, and electrical box safety.

Unit Operation & Cleaning Safety

Covers unit operation, nitrogen, short circuits, controller use, and cleaning safety.

Environmental & Operational Precautions

Discusses volatile liquids, room ventilation, and temperature settings.

Abnormal Conditions & Repair Guidelines

Product Disposal Information

Product Introduction

Key Components & Working Conditions

Identifies main parts and lists rated working conditions.

Installation Preparations

Standard Fittings & Location Criteria

Lists fittings and criteria for choosing an installation location.

Site Clearance & Communication Line Needs

Details site clearance requirements and communication line needs.

Electrical Wiring Requirements

Communication Line Specifications

Specifies communication cable types and power cord/switch capacity.

Indoor Unit Installation

Power Cords & Unit Dimensions

Guides on power cords and shows unit dimensions.

Suspending the Indoor Unit

Details drilling, bolts, and hanger bracket installation.

Ceiling Mounting & Refrigerant Piping

Covers ceiling considerations, pipe connection, and tightening.

Refrigerant Piping and Connection

Flaring Port & Nut Tightening

Guides on connecting the flaring port and tightening nuts with torque values.

Pipe Bending & Insulation

Advises on bending pipes correctly and insulating connection pipes with sponge.

Drainage System Installation

Drain Pipe Notices & Hose Installation

Rules for drain pipes and installing the drain hose.

Pipe Insulation & Connections

Covers pipe insulation, multiple connections, and trap installation.

Pipe Support & System Testing

Specifies pipe support and drainage system testing procedures.

Air Duct Installation

Duct Insulation, Clearance & Noise

Emphasizes duct insulation, clearance, and noise damping.

Duct Dimensions & Connections

Provides duct dimensions and shows air-out/return duct connections.

Return Air & Fresh Air Ducting

Covers bottom return air, fresh air pipes, and noise reduction.

Wired Controller Installation

Controller Installation Reference

Refers to a separate manual for controller installation.

Wiring Work

General Wiring Safety & Regulations

Emphasizes safety, regulations, and general wiring precautions.

Wiring Management & Terminal Connections

Covers wiring regulations and connecting wires to terminals.

Power Cord Connection

Power Cord & Circuit Breaker Requirements

Stresses circuit breakers and keeping units energized.

Power Cord Connection Steps

Outlines steps for connecting the power cord.

Indoor to Outdoor Unit Communication Wiring

Communication Cable Routing & Termination

Describes routing and terminating communication cables.

Wired Controller Communication Wiring

Bus Termination & Controller Connection

Covers bus termination and connecting controller wires.

Controller & Receiver Installation

Shows installation of wired controller and remote receiver.

Controller Network Configuration

Explains controller network setup and unit control limits.

External Static Pressure Setting

Adjustment Guide and Tables

Guides on setting pressure via controller/software with model-specific tables.

Routine Maintenance

Maintenance Safety Warnings

Provides critical warnings before cleaning, like turning off power.

Filter Cleaning & Pre-Season Checks

Details filter cleaning and pre-season maintenance checks.

Post-Season Maintenance & Error Codes

Advises post-season actions and lists indoor unit error codes.

Troubleshooting Common Issues

Startup, Operation & Performance Issues

Provides solutions for startup, operation, and performance problems.

Heating Fan & Cooling Issues

Explains heating fan behavior and troubleshooting cooling/heating effects.

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