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Gree GWH18QD-K3DNA1G User Manual

Gree GWH18QD-K3DNA1G
109 pages
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GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI
Change for Life
Service Manual
Models: GWH18QD-K3DNA1G
GWH18QD-K3DNA2G
GWH18QD-K3DNA5G
GWH18QD-K3DNA6G
GWH18QD-K3DNB2G
GWH18QD-K3DNB4G
GWH18QD-K3DNB6G
GWH18QD-K3DNB8G
GWH18QD-K3DNC2G
GWH24QE-K3DNA1G
GWH24QE-K3DNA2G
GWH24QE-K3DNA5G
GWH24QE-K3DNA6G
GWH24QE-K3DNB2G
GWH24QE-K3DNB4G
GWH24QE-K3DNB6G
GWH24QE-K3DNB8G
GWH24QE-K3DNC2G
(Refrigerant R410A)

Table of Contents

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Gree GWH18QD-K3DNA1G Specifications

General IconGeneral
Cooling Capacity18000 BTU/h
Heating Capacity18000 BTU/h
Energy Efficiency Ratio (EER)3.21
Power Supply220-240V, 50Hz
RefrigerantR410A
Indoor Unit Dimensions (LxWxH)970 x 300 x 224 mm
Outdoor Unit Dimensions (LxWxH)848 x 596 x 320 mm
Noise Level (Indoor Unit)42 dB(A)
Air Flow (Indoor Unit)850 m³/h
TypeSplit System
Operating Temperature (Cooling)18°C to 43°C

Summary

Technical Information

1. Summary

Overview of indoor units, outdoor units, and remote controller models.

2. Specifications

Detailed technical specifications for indoor and outdoor units, including capacities and dimensions.

2.2 Operation Characteristic Curve

Graphs illustrating cooling and heating performance based on compressor speed.

2.3 Capacity Variation Ratio According to Temperature

Charts showing how cooling/heating capacity changes with outdoor temperature.

2.4 Cooling and Heating Data Sheet in Rated Frequency

Performance data at rated conditions, including pressures and temperatures.

2.5 Noise Curve

Graphs showing noise levels for indoor and outdoor units based on operating parameters.

3. Outline Dimension Diagram

Visual representation of indoor unit dimensions and mounting details.

4. Refrigerant System Diagram

Schematic showing the refrigerant flow for 18K and 24K models.

5. Electrical Part

Wiring diagrams and PCB layout for indoor and outdoor units.

6. Function and Control

Explanation of remote controller functions, icons, and operational modes.

Outdoor Unit Specifications

Detailed technical specifications specific to outdoor units.

Special Functions and Control Logic

Defrosting Control

Conditions and logic for initiating and ending the defrosting cycle.

Control Logic

Operational logic for compressor, fans, and 4-way valve in different modes.

Protection Functions

Detailed descriptions of various protections like overload, overcurrent, and sensor failures.

Part II : Installation and Maintenance

7. Notes for Installation and Maintenance

Important notes and guidelines for proper installation and maintenance procedures.

Safety Precautions

Critical safety warnings for installation and maintenance, covering electrical and refrigerant hazards.

Installation Procedures

Step-by-step guide for unit installation, including dimensions, location, wiring, and piping.

Post-Installation Checks

Verification steps after installation and initial operational testing.

Maintenance and Troubleshooting

Procedures for diagnosing and resolving malfunctions, including error codes.

10. Exploded View and Parts List

10.1 Indoor Unit Parts

Detailed diagrams and part numbers for indoor unit components.

10.2 Outdoor Unit Parts

Detailed diagrams and part numbers for outdoor unit components.

Appendices

Appendix 1: Temperature Conversion

Conversion table for Celsius and Fahrenheit temperature units.

Appendix 2: Connection Pipe Configuration

Guidelines on pipe lengths, refrigerant oil, and charging amounts.

Appendix 3: Pipe Expanding Method

Instructions for proper pipe expansion to prevent refrigerant leaks.

Appendix 4: Temperature Sensor Resistance Table

Tables correlating temperature sensor resistance values with specific temperatures.

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