GREE Blue Series 18K & 24K AC Service Manual – PDF Download
Original price was: $95.00.$18.95Current price is: $18.95.
Original GREE Blue Series Split Air Conditioner Service Manual for 18,000 & 24,000 BTU models using R410A refrigerant. Covers specifications, wiring diagrams, PCB layouts, refrigerant system, installation, maintenance, troubleshooting, error codes, and exploded parts views. Essential factory reference for HVAC technicians and service engineers. Instant PDF download.
Description
GREE Blue Series 18K & 24K AC Service Manual – PDF Download
Description
This is the official factory Service Manual for GREE Blue Series wall-mounted split air conditioners, published by GREE Electric Appliances, Inc. of Zhuhai.
The manual is written for professional HVAC technicians, installers, and service engineers, providing complete technical information including electrical diagrams, PCB layouts, refrigerant flow, control logic, protection functions, and detailed malfunction diagnostics.
It covers both cooling-only and cooling & heating models in 18K and 24K BTU capacities, operating on R410A refrigerant, and includes installation, commissioning, servicing, and repair procedures used by authorized service centers.
🔹 Models Covered
18,000 BTU Models
ACZEM4C4R18 / ACZCI4C4R18 (Cooling Only)
ACZEM4H4R18 / ACZCI4H4R18 (Cooling & Heating)
24,000 BTU Models
ACZEM4C4R24 / ACZCI4C4R24 (Cooling Only)
ACZEM4H4R24 / ACZCI4H4R24 (Cooling & Heating)
Refrigerant: R410A
Power Supply: 208 / 230V, 60Hz, Single Phase
🧩 Main Contents & Sections
🔧 Part I – Technical Information
Product summary & system overview
Full specification sheets (18K & 24K)
Cooling & heating capacity data
Operation characteristic curves
Capacity variation vs temperature charts
Noise curves (indoor & outdoor)
Indoor & outdoor unit dimension drawings
Refrigerant system diagrams (cooling / heating)
⚡ Electrical & Control System
Indoor & outdoor unit wiring diagrams
PCB printed circuit board layouts (top & bottom views)
Sensor locations & resistance values
Compressor, fan motor & 4-way valve control
Communication wiring between IDU & ODU
🎛 Function & Control Logic
Remote controller functions & icons
AUTO / COOL / DRY / FAN / HEAT modes
Temperature control logic
Fan speed & swing control
Sleep, Timer, Turbo, X-FAN functions
Memory & emergency operation modes
Defrost control (heating models)
🛠 Part II – Installation & Maintenance
Installation precautions
Indoor & outdoor unit installation
Electrical connection requirements
Vacuum pumping & leak detection
Post-installation checks
Test operation procedures
🔍 Maintenance & Troubleshooting
Malfunction analysis
LED flashing codes (IDU / ODU)
Error code explanations (E1–E8, F1–F5, H1–H6, P8, U3, etc.)
Protection logic:
Freeze protection
Overload protection
Overcurrent protection
IPM module protection
Sensor failure detection
🧩 Exploded Views & Parts
Indoor unit exploded diagrams
Outdoor unit exploded diagrams
Parts identification & service reference
📎 Appendices
Celsius / Fahrenheit conversion
Connection pipe configuration
Pipe expanding method
Temperature sensor resistance table
📄 File Details
| Item | Details |
|---|---|
| Manual Name | GREE Blue Series Split AC Service Manual |
| Brand | GREE |
| Capacity | 18,000 & 24,000 BTU |
| Models Covered | ACZEM4 / ACZCI4 (C & H variants) |
| Refrigerant | R410A |
| Language | English |
| Format | PDF (Digital Download) |
| Pages | 103 |
| PDF Quality | Original factory manual, clear text & diagrams |
Service and repair GREE Blue Series ACs with factory accuracy—this official GREE Service Manual gives you complete wiring, diagnostics, and control logic in one instant download.
