This document is a service manual for Gree Electric Appliances, Inc. of Zhuhai, covering various GWC and GWH series air conditioners, specifically those using Refrigerant R410A. It provides comprehensive technical information, installation guidelines, and maintenance procedures for these units.
Function Description:
The air conditioners covered by this manual are designed for both cooling-only and cooling/heating operations, providing climate control for residential or commercial spaces. They utilize a refrigerant system (R410A) to transfer heat, with an indoor unit (evaporator) and an outdoor unit (condenser) working in conjunction. The units feature various operational modes including Auto, Cool, Dry, Fan, and Heat (for applicable models), allowing users to select the desired comfort setting. Advanced functions like Sleep mode, I FEEL (sensing ambient temperature at the remote controller), Light control, Clock, Timer ON/OFF, Energy-saving function, and 8℃ heating (for heating models) are also available. Some models may also include a Cold Plasma Generator for air purification.
Important Technical Specifications:
The manual details specifications for various models, including:
- Power Supply: Typically 208/230V~, 60Hz, 1 Phase.
- Cooling Capacity: 9000 BTU/h (for GWH09QC-D3DNC2D) to 12000 BTU/h (for 12K models), with a range for min/max operation.
- Heating Capacity: 11000 BTU/h (for GWH09QC-D3DNC2D) to 13000 BTU/h (for 12K heating models), with a range for min/max operation. Cooling-only models do not have heating capacity.
- Power Input (Cooling/Heating): Ranges from 630W to 1300W for cooling, and 1020W to 1250W for heating, with min/max values.
- Current (Cooling/Heating): Ranges from 2.80A to 5.8A for cooling, and 3.50A to 5.6A for heating.
- Rated Input/Current: Up to 1500W and 6.7A.
- Air Flow Volume (SH/H/M/L): Ranges from 377/288/241/171 CFM to 400/318/253/194 CFM.
- Dehumidifying Volume: 1.69 Pint/h to 2.96 Pint/h.
- EER/SEER: Up to 14.29 (EER) and 23.00 (SEER) for some models, indicating high energy efficiency.
- COP/HSPF: Up to 11.82 (COP) and 10.50 (HSPF) for heating models.
- Application Area: 14.35-21.53 yd² to 19.14-28.70 yd².
- Compressor: Rotary type, manufactured by Zhuhai Landa Compressor Co., Ltd. or Zhuhai Gree Daikin Device Co., Ltd. Models include QXA-B102zE190 or 1GDY23AXD.
- Refrigerant: R410A, with charge amounts ranging from 30 oz to 47.62 oz depending on the model.
- Connection Pipe: Liquid pipe outer diameter typically Φ1/4 inch, Gas pipe outer diameter Φ3/8 inch or Φ1/2 inch. Max distance height up to 32.8 ft, max distance length up to 65.6 ft.
- Noise Levels (Indoor/Outdoor): Sound pressure levels for indoor units range from 29-45 dB(A), and for outdoor units from 52-54 dB(A).
Usage Features:
The air conditioners are controlled via a remote controller (YAN1F1F model is shown). The remote controller allows for:
- Mode Selection: Auto, Cool, Dry, Fan, Heat.
- Temperature Adjustment: Set temperature from 60.8°F to 86.0°F (16°C to 30°C).
- Fan Speed Control: Auto, Low, Medium, High.
- Swing Function: Adjusts the horizontal louver's blowing angle.
- Special Functions:
- Sleep Mode: Automatically adjusts temperature for comfortable sleep.
- I FEEL Function: Senses ambient temperature at the remote controller for more precise comfort control.
- Light Button: Turns off/on the indoor unit's display light.
- Clock/Timer ON/OFF: Schedules unit operation.
- TURBO Function: Provides quick cooling or heating.
- Energy-saving Function: Optimizes operation for energy efficiency.
- 8℃ Heating Function: Maintains a minimum temperature of 8℃ (46°F) to prevent freezing.
- Child Lock: Prevents unintended changes to settings.
- X-fan Mode: Indoor fan continues to operate at low speed for 2 minutes after shutdown to dry the evaporator and prevent mold growth.
Maintenance Features:
The manual provides extensive troubleshooting and removal procedures for various components, indicating that the units are designed with serviceability in mind.
- Error Code List: A comprehensive list of error codes (e.g., E2 for anti-freezing protection, H6 for IDU fan motor blocked protection) helps in quick diagnosis.
- Troubleshooting Guides: Detailed flowcharts for main malfunctions (e.g., temperature sensor, IDU fan motor, jumper cap, zero-crossing inspection circuit, capacitor charge fault, IPM protection, compressor phase overcurrent, high temperature/overload protection, start-up failure, out-of-step diagnosis, PMV malfunction, PFC fault, communication malfunction) and normal malfunctions (e.g., unit won't start, poor cooling/heating, horizontal louver issues, ODU/compressor fan motor issues, refrigerant leakage, abnormal sound/vibration).
- Exploded Views and Parts Lists: Detailed diagrams and lists for both indoor and outdoor units facilitate identification and replacement of components.
- Removal Procedures: Step-by-step instructions for disassembling indoor unit components (filter assembly, horizontal louver, panel, electric box, front case, vertical louver, evaporator, motor, cross flow blade) and outdoor unit components (cable cross plate, top cover, grille, front panel, right side plate, axial flow blade, motor, electric box, clapboard, 4-way valve, capillary sub-assembly, compressor).
- Installation Checks: Post-installation checks include verifying firm installation, refrigerant leakage test, sufficient pipeline insulation, proper water drainage, correct power supply voltage, proper electrical wiring, secure grounding, and removal of dust/sundries.
- Temperature Sensor Resistance Tables: Provided for ambient, tube, and discharge temperature sensors to aid in diagnosing sensor malfunctions.
- Pipe Expanding Method: Detailed instructions for proper pipe expansion to prevent refrigerant leakage.
- Refrigerant System Diagram: Illustrates the refrigerant flow for both cooling-only and cooling/heating models, including components like compressor, accumulator, capillary, strainer, 4-way valve, and electric expansion valve.
- Electrical Part Diagrams: Wiring diagrams and PCB printed diagrams for indoor and outdoor units are included for electrical troubleshooting.
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