This document is a service manual for TGM Air Conditioners, covering technical information, installation, and maintenance.
Function Description
The air conditioners offer various operation modes including Auto, Cool, Dry, Fan, and Heat, selectable via the remote controller. In Auto mode, the unit automatically adjusts operation based on ambient temperature, with adjustable set temperature and fan speed. Cool mode provides cooling, with adjustable set temperature, fan speed, and swing angle. Dry mode operates at low fan speed to dehumidify, with fixed fan speed but adjustable swing angle. Fan mode provides air circulation without cooling or heating, with adjustable fan speed and swing angle. Heat mode provides heating, with adjustable set temperature, fan speed, and swing angle.
Special functions include:
- X-FAN function: Available in Cool or Dry mode, this function continues indoor fan operation for a few minutes after the unit is turned off to dry the evaporator and prevent mold. It can be activated or deactivated by holding the fan speed button for 2 seconds.
- Turbo function: In Cool or Heat mode, this function enables super-high fan speed for rapid cooling or heating to quickly reach the preset temperature. It is activated by the "Turbo" button.
- Sleep function: This function adjusts operation for comfortable sleep. Sleep mode 1 (Sleep 1) in Cool modes increases the set temperature by 1°C after one hour and by 2°C after two hours. In Heat mode, it decreases the set temperature by 1°C after one hour and by 2°C after two hours. Sleep mode 2 (Sleep 2) follows a presetting sleep temperature curve. Sleep mode 3 (Sleep 3) allows user-individuated sleep curve settings.
- I FEEL function: When activated, the remote controller sends the detected ambient temperature to the unit, which then automatically adjusts the indoor temperature accordingly.
- Energy-saving function: In Cool mode, this function adjusts the set temperature automatically to achieve optimal energy-saving effects. It is activated by simultaneously pressing "TEMP" and "CLOCK" buttons.
- 8°C heating function: In Heat mode, this function maintains a heating status at 8°C, useful for preventing freezing in unoccupied rooms. It is activated by simultaneously pressing "TEMP" and "CLOCK" buttons.
- Child lock function: This function locks the remote controller buttons to prevent accidental changes. It is activated by simultaneously pressing "▲" and "▼" buttons.
- Temperature display switchover: Allows switching the temperature display between °C and °F by simultaneously pressing "▼" and "MODE" buttons in OFF status.
- Auto clean function: This function cleans and sterilizes the indoor heat exchanger through condensation, frosting, defrosting, and high-temperature stages. It is activated by holding "MODE" and "FAN" buttons simultaneously for 5 seconds in OFF status.
- Power limiting function: This function limits the power consumption of the unit.
- WiFi function: Enables control of the air conditioner via a smartphone app (GREE+ App or Ewpe Smart App). It can be turned on/off by pressing the "WiFi" button.
Important Technical Specifications
The manual provides detailed specifications for various indoor and outdoor unit models, including:
- Power Supply: Ranges from 115V~ to 208/230V~, 60Hz, single phase.
- Cooling Capacity: Ranges from 9000 Btu/h to 22000 Btu/h.
- Heating Capacity: Ranges from 9400 Btu/h to 24000 Btu/h (for heat pump models).
- Power Input (Cooling/Heating): Varies by model, e.g., 850W (GWC09QBXB-A3DNC4B) to 1896W (GWC24QEXF-D3DNA5C).
- Current (Cooling/Heating): Varies by model, e.g., 9.24A (GWC09QBXB-A3DNC4B) to 9.5A (GWH24QEXF-D3DNA5C).
- EER (Energy Efficiency Ratio): Ranges from 8.90 (GWH12QCXB-D3DNA5B) to 14.72 (GWH09QCXD-D3DNB6A).
- COP (Coefficient of Performance): Ranges from 11.09 (GWH12QCXB-D3DNA5B) to 14.3 (GWH09QCXD-D3DNB6A).
- SEER (Seasonal Energy Efficiency Ratio): Ranges from 16.5 to 27.
- HSPF (Heating Seasonal Performance Factor): Ranges from 8.3 to 12.
- Refrigerant: R410A.
- Refrigerant Charge: Varies by model, e.g., 18.0 oz to 60 oz.
- Connection Pipe Length: Standard 24.6 ft, with additional charge requirements for longer pipes (e.g., 0.2 oz/ft).
- Outer Diameter Liquid Pipe: 1/4" for all models.
- Outer Diameter Gas Pipe: 3/8" (09K/12K models), 1/2" (18K models), 5/8" (24K models).
- Max Distance Height: 32.8 ft.
- Max Distance Length: 49.2 ft to 131.2 ft.
- Sound Pressure Level (Indoor): Ranges from 24 dB(A) to 52 dB(A) (Cooling/Heating).
- Sound Power Level (Indoor): Ranges from 34 dB(A) to 62 dB(A) (Cooling/Heating).
- Dimensions (W×H×D): Indoor units vary, e.g., 31 7/64×10 53/64×7 7/8 inch (09K models) to 42 28/64×12 51/64×9 44/64 inch (24K models). Outdoor units vary, e.g., 28 13/16×21 27/32×12 63/64 inch (09K models) to 39 3/8×29 3/8×16 13/16 inch (24K models).
Usage Features
- Remote Controller: The manual details the buttons and icons on various remote controller models (YAY1FF, YAN1F6F(WiFi), YAP1F7F(WiFi), YAN1F10F(WiFi)). These controllers allow users to select modes, adjust temperature, fan speed, swing angle, and activate special functions.
- App Control: GREE+ App and Ewpe Smart App enable remote control of the air conditioner via smartphone. They support iOS 7.0+ and Android 4.4+ versions.
- Temperature Range: Set temperature range for cooling and heating is generally 16~30°C (61~86°F).
- Safety Features: Includes protection against high/low pressure, high discharge temperature, overcurrent, module high temperature, voltage abnormity, and sensor failures.
- Defrosting: Automatic defrosting is implemented in heating mode to maintain efficiency.
- Power Memory: Indoor units have a power memory function, allowing them to restart with previous settings after power recovery.
Maintenance Features
The manual provides comprehensive troubleshooting and maintenance guidelines:
- Error Code List: A detailed list of malfunction names, display methods (Dual-8 Code), A/C status, and possible causes (e.g., F1 for indoor ambient temperature sensor open/short circuit, E5 for overcurrent protection).
- Troubleshooting Procedures: Step-by-step flowcharts for diagnosing and resolving common issues, such as temperature sensor malfunctions, fan motor blocked protection, jumper cap protection, zero-crossing inspection circuit malfunction, WiFi detecting plate malfunction, insufficient fluorine protection, communication malfunction, overcurrent protection, high temperature and overload protection, and start-up failure.
- Normal Malfunction Troubleshooting: A table addressing issues like the air conditioner not starting, poor cooling/heating, horizontal louver not swinging, ODU fan motor not operating, compressor not operating, air conditioner leaking, and abnormal sound/vibration.
- Installation Safety Precautions: Emphasizes proper grounding, use of specified wires, secure connections, and handling of refrigerant.
- Tools for Installation and Maintenance: Lists essential tools such as level meter, measuring tape, screwdriver, impact drill, drill head, electric drill, electroprobe, universal meter, torque wrench, open-end wrench, inner hexagon spanner, electronic leakage detector, vacuum pump, pressure meter, pipe pliers, pipe cutter, pipe expander, pipe bender, soldering appliance, refrigerant container, and electronic scale.
- Refrigerant Recovery: Instructions for safely recovering refrigerant during relocation or repair, emphasizing proper valve closure and power disconnection.
- Component Replacement: Guidance on replacing parts like the outdoor control panel, temperature sensors, PG motor, mainboard, and compressor.
- Cleaning: Recommendations for cleaning heat exchangers and improving radiation environment.
- Sensor Resistance Values: Appendix includes a list of resistance values for temperature sensors to aid in diagnosis.
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