Gree U-Crown Split Air Conditioner Service Manual – PDF Download
$25.95
Official Gree U-Crown Inverter Air Conditioner Service Manual (R410A models).
Includes complete technical data, wiring diagrams, refrigerant system, smart control setup, and troubleshooting charts for GWH09UB, GWH12UB, and GWH18UC wall-mounted units.
Description
Gree U-Crown Split Air Conditioner (GWH09UB / GWH12UB / GWH18UC) Service Manual – PDF Download
DESCRIPTION:
Overview
This Gree U-Crown Split Air Conditioner Service Manual (Models: GWH09UB-K3DNA4F, GWH12UB-K3DNA4F, GWH18UC-K3DNA4F) provides detailed technical information, system diagrams, installation notes, and maintenance instructions for technicians servicing inverter-driven R410A wall-mounted systems. It is applicable to both indoor and outdoor units using rotary compressors manufactured by Zhuhai Landa Compressor Co., Ltd.
613367228-Service-manual-U-CROWN
The manual is structured in two parts — Technical Information and Installation & Maintenance — and includes wiring diagrams, PCB layouts, refrigerant system charts, smart control setup, and comprehensive troubleshooting for common malfunctions.
IMAGES:
Technical Sections
Specifications & Performance Data: Detailed cooling/heating capacities (2.6–5.3 kW), EER/COP ratings up to 4.33, SEER 7.5, SCOP 4.6, airflow profiles, noise curves, and compressor operating ranges.
Refrigerant System Diagram: Full circuit layout with electronic expansion valve, 4-way valve, accumulator, strainer, and intercooler arrangement.
Electrical Schematics: Indoor and outdoor wiring diagrams, PCB printed circuits, terminal identification, and communication interfaces for Wi-Fi and RF control.
Control Functions:
Smart Wi-Fi operation (Gree+ App setup for Android/iOS)
Remote controller pairing, RF matching, mode selection, sleep curves, 8 °C heating, energy-saving, and child lock
Intelligent fan speed control, self-diagnosis, and defrost logic
Installation & Maintenance:
Indoor/outdoor unit installation dimensions and clearance requirements
Vacuuming, leak testing, pipe flaring and connection details
Periodic inspection intervals, refrigerant recharging (20 g/m beyond 5 m line), and torque specifications
Error code list (E6, H6, F1–F3, C5, EU, En) and LED indication patterns
Exploded Views & Parts List:
Component diagrams for indoor and outdoor assemblies
Compressor, PCB, fan motor, swing motor, sensor, and piping components with reference numbers
Additional Features
Remote controller icons and button logic explained
Smart home integration with Gree Smart Wi-Fi control and scene linking
Operation characteristic curves for compressor speed, current, and outdoor temperature dependence
Noise curve charts and performance data at rated frequency (50 Hz)
Celsius/Fahrenheit conversion chart, pipe expansion methods, and thermistor resistance reference table
TECHNICAL HIGHLIGHTS
| Category | Details |
|---|---|
| Models Covered | GWH09UB-K3DNA4F, GWH12UB-K3DNA4F, GWH18UC-K3DNA4F |
| Refrigerant | R410A |
| Cooling Capacity | 2.6 kW – 5.27 kW |
| Heating Capacity | 3.0 kW – 5.27 kW |
| EER / COP | 4.33 / 3.75 (max) |
| Compressor Type | Rotary (Landa QXAT Series) |
| Power Supply | 220–240 V ~ 50 Hz 1Ph |
| Indoor Airflow | 290 – 850 m³/h (multi-speed) |
| Sound Pressure (Indoor) | 19 – 46 dB(A) |
| Sound Pressure (Outdoor) | 50 – 56 dB(A) |
| Pipe Sizes | Liquid Ø6 mm, Gas Ø12 mm |
| Max Line Length | 15 – 25 m |
| Max Height Difference | 10 m |
| Wi-Fi Smart Control | Supported (Android/iOS via Gree App) |
| Error Code Coverage | F1–F3, H6, E6, C5, EU, En, Fo, etc. |
| Sections | Technical Data, Wiring, Control, Installation, Maintenance, Parts List |
| Pages | 130+ |
| Language | English |
| File Type | Searchable PDF |
FILE DETAILS
| File Name | 613367228-Service-manual-U-CROWN.pdf |
|---|---|
| Manufacturer | Gree Electric Appliances, Inc. of Zhuhai |
| Manual Type | Service Manual |
| Models Covered | GWH09UB-K3DNA4F, GWH12UB-K3DNA4F, GWH18UC-K3DNA4F |
| Edition | R410A Series, Rev. A |
| Language | English |
| Pages | 130+ |
| File Format | PDF (searchable text) |
| Publication | Gree Zhuhai, China |
| Size | ~59.3 MB |
| Access | Instant Digital Download |
