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Gree GWH18AAC-K3NNA1A User Manual

Gree GWH18AAC-K3NNA1A
70 pages
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GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI
Change for Life
Service Manual
Models: GWH18AAC-K3NNA1A
GWH18AAC-K3NNA2A
GWH24AAD-K3NNA1A
GWH24AAD-K3NNA2A
(Refrigerant R410A)
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Gree GWH18AAC-K3NNA1A Specifications

General IconGeneral
Cooling Capacity18000 BTU/h
Heating Capacity19000 BTU/h
Energy Efficiency Ratio (EER)3.21
Power Supply220-240V/50Hz/1Ph
RefrigerantR410A
Indoor Unit Dimensions (W x H x D)970 x 300 x 224 mm
Outdoor Unit Dimensions (W x H x D)963 x 700 x 396 mm
Weight (Indoor Unit)12.5 kg
Weight (Outdoor Unit)46 kg
Energy Efficiency Ratio (Cooling)3.21
Energy Efficiency Ratio (Heating)3.61
TypeSplit Type

Summary

Technical Information

Summary

Overview of the air conditioner unit, including indoor and outdoor units, and remote controller.

Specifications

Detailed technical specifications for the 18K and 24K models, covering electrical, performance, and physical attributes.

Outline Dimension Diagram

Visual representation of the physical dimensions for both the indoor and outdoor units of the air conditioner.

Refrigerant System Diagram

Schematic illustration of the refrigerant flow within the cooling and heating system, showing key components.

Electrical Part

Information regarding the electrical components, including wiring diagrams for indoor and outdoor units.

PCB Printed Diagram

Detailed layout and component identification for the printed circuit board (PCB) of the air conditioner.

Function and Control

Explanation of the air conditioner's operational modes, functions, and remote controller usage.

Other Control Function Introduction

Explanation of additional control functions like Timer, Sleep, Turbo, Auto Fan Speed, and Swing.

Special Function

Description of specialized functions such as the Health function and I FEEL function.

Installation and Maintenance

Notes for Installation and Maintenance

Essential safety precautions and guidelines for installation and maintenance procedures.

Main Tools for Installation and Maintenance

List of essential tools required for performing installation and maintenance tasks.

Installation

Step-by-step instructions and diagrams for installing the air conditioning unit.

Installation Parts-Checking

Checklist of components and parts required for proper installation of the unit.

Electric Connection Requirement

Guidelines and safety requirements for electrical connections, wiring, and grounding.

Installation of Indoor Unit

Procedures for selecting the installation location and mounting the indoor unit.

Installation of Outdoor unit

Procedures for selecting the installation location and mounting the outdoor unit.

Vacuum Pumping and Leak Detection

Methods for vacuum pumping the system and detecting refrigerant leaks.

Check after Installation and Test operation

Procedures for verifying installation and performing operational tests.

Maintenance

Error code

Table listing error codes, their display methods, and possible causes for malfunctions.

Procedure of Troubleshooting

Diagnostic flowcharts for identifying and resolving common malfunctions like sensor errors or motor issues.

Maintenance method for normal malfunction

Solutions and troubleshooting steps for common operational issues such as unit not starting or poor cooling.

Exploded View and Parts List

Indoor Unit

Exploded diagrams and part number lists for the indoor unit components.

Outdoor Unit

Exploded diagrams and part number lists for the outdoor unit components.

Removal Procedure

Removal Procedure of Indoor Unit

Step-by-step instructions for disassembling the indoor unit, including filter, louver, and motor removal.

Removal Procedure of Outdoor Unit

Step-by-step instructions for disassembling the outdoor unit, covering panels, motor, and compressor.

Appendix

Reference Sheet of Celsius and Fahrenheit

Conversion table for temperature readings between Celsius and Fahrenheit.

Configuration of Connection Pipe

Guidelines for connection pipe lengths, refrigerant charging, and oil requirements.

Pipe Expanding Method

Instructions on the correct procedure for expanding pipe ports to prevent refrigerant leaks.

List of Resistance for Temperature Sensor

Tables correlating temperature values with sensor resistance for diagnostic purposes.

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