Gree GWHD(14)NK6OO(LC)(LH) User Manual

Service Manual
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GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI

Gree GWHD(14)NK6OO(LC)(LH) Specifications

General

Brand	Gree
Model	GWHD(14)NK6OO(LC)(LH)
Category	Air Conditioner
Language	English

Summary

1. Summary

2. Specifications

3. Outline Dimension Diagram

4. Refrigerant System Diagram

5. Electrical Part

Wiring Diagram

Detailed schematics illustrating electrical connections, component layout, and wiring paths for unit operation.

PCB Printed Diagram

Visual guide to the Printed Circuit Board, identifying component locations and terminal assignments for diagnostics.

6. Function and Control

Basic System Operating Modes

Describes the core functions and operational logic for cooling, dry, heating, and fan modes.

System Protection Mechanisms

Outlines the safety features and protection functions designed to prevent unit damage and ensure safe operation.

7. Notes for Installation and Maintenance

General Safety Precautions

Essential safety guidelines covering electrical, installation, and general handling to prevent hazards.

Flammable Refrigerant Safety

Specific safety measures for handling R32 refrigerant, emphasizing fire prevention and leak control.

Installation and Maintenance Procedures

Covers critical notes for proper installation, routine maintenance, and specialized tasks like welding.

8. Installation

Installation Procedures Overview

Provides a step-by-step flowchart illustrating the sequence for unit installation.

Electrical Connections and Wiring

Guidance on connecting power, wiring, and ensuring correct electrical compliance during installation.

Outdoor Unit Mounting and Piping

Instructions for securely mounting the outdoor unit and properly installing refrigerant piping with vacuuming.

Dimensional Requirements and Checks

Specifies required clearances and essential post-installation checks for optimal performance and safety.

9. Maintenance

Pre-Maintenance Safety Precautions

Critical safety steps before maintenance, including electrical discharge of capacitors.

LED Indicators and Malfunction Diagnosis

Interpreting LED signals and basic diagnostic methods for identifying unit malfunctions.

Malfunction Checking and Elimination Guide

Systematic troubleshooting steps for diagnosing and resolving common operational faults.

Troubleshooting Common Issues

Addresses problems like unit not starting, poor performance, and abnormal sounds with corrective actions.

10. Exploded View and Parts List

11. Removal Procedure

Appendix

Celsius and Fahrenheit Conversion Chart

Reference tables for converting temperature readings between Celsius and Fahrenheit scales.

Pipe Expanding Method Guide

Detailed steps and diagrams for correctly expanding refrigerant pipes to prevent leaks.

Temperature Sensor Resistance Tables

Lists resistance values for temperature sensors at various temperatures for diagnostic purposes.