Table of Contents Service Manual Part Ⅰ : Technical Information ........1 1. Summary ................. 1 2. Specifications ............... 2 2.1 Specification Sheet ................... 2 2.2 Capacity Variation Ratio According to Temperature ......6 3. Outline Dimension Diagram ........7 3.1 Indoor Unit ....................
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Service Manual 8.9 Vacuum Pumping and Leak Detection ..........33 8.10 Check after Installation and Test Operation ........34 9. Maintenance ..............35 9.1 Judgement by Flashing LED of Indoor ..........35 9.2 Malfunction detection process .............. 42 9.3 Controller Assembly and Maintenance Diagram ......... 45 9.4 Troubleshooting for Normal Malfunction ..........
2. Specifications Service Manual 2.1 Specification Sheet Model GWH09AOCXD-K6DNA1B Product Code CB538000400 Rated Voltage 220-240 Power Rated Frequency Supply Phases Power Supply Mode Indoor Cooling Capacity 2700 Heating Capacity 4500 Cooling Power Input Heating Power Input 1070 Cooling Power Current...
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Service Manual Outdoor Unit Model GWH09AOCXD-K6DNA1B/O Outdoor Unit Product Code CB538W00400 Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO.,LTD Compressor Model QXF-B103zH170F Compressor Oil RB68GX or equivalent Compressor Type Rotary Compressor LRA. 25.00 Compressor RLA 4.00 Compressor Power Input Compressor Overload Protector...
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Service Manual Model GWH12AOCXD-K6DNA1B Product Code CB538000300 Rated Voltage 220-240 Power Rated Frequency Supply Phases Power Supply Mode Indoor Cooling Capacity 3700 Heating Capacity 4800 Cooling Power Input Heating Power Input 1116 Cooling Power Current Heating Power Current Rated Input 2196 Rated Cooling Current Rated Heating Current...
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Service Manual Outdoor Unit Model GWH12AOCXD-K6DNA1B/O Outdoor Unit Product Code CB538W00300 Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO.,LTD Compressor Model QXF-B103zH170F Compressor Oil RB68GX or equivalent Compressor Type Rotary Compressor LRA. 25.00 Compressor RLA 4.00 Compressor Power Input Compressor Overload Protector Throttling Method Electron expansion valve Set Temperature Range...
Service Manual 2.2 Capacity Variation Ratio According to Temperature Cooling Heating 160% 120% 140% 100% 120% 100% Condition Conditions Indoor:DB27°C WB19°C Indoor:DB20°C Indoor air flow: High Indoor air flow:Super High Pipe length:5m Pipe length:5m Technical Information...
4. Refrigerant System Diagram Service Manual Cooling and heating model Indoor unit Outdoor unit Gas pipe side Valve 4-Way valve Di s charge Heat Suction Accumlator exchanger Compressor (evaporator) Heat exchanger Liquid pipe (condenser) side Valve Strainer Electric Strainer expand valve COOLING HEATING...
Symbol Color Symbol Name Yellow Brown COMP Compressor Blue Grounding wire YEGN Yellow/Green Black Note: Jumper cap is used to determine fan speed and the swing angle of horizontal lover for this model. ● Indoor Unit GWH09AOCXD-K6DNA1B/I GWH12AOCXD-K6DNA1B/I 600007063838 Technical Information...
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Service Manual ● Outdoor Unit GWH09AOCXD-K6DNA1B/O GWH12AOCXD-K6DNA1B/O 600007066077 These wiring diagrams are subject to change without notice; please refer to the one supplied with the unit. Technical Information...
Service Manual 5.2 PCB Printed Diagram Indoor unit mainboard Name Name Interface of grounding wire Left&right swing interface Live wire of outdoor unit Interface of fresh air pipe switch Live wire of indoor unit Interface of fresh air motor Neutral wire of discharge motor Interface of CO module Live wire of discharge motor...
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Service Manual Outdoor Unit Name Name Grounding wire,Live wire, neutral wire and communication wire integrated Interface of temperature sensor interface Interface of 4-way valve Interface of compressor Interface of outdoor fan Interface of electronic expansion valve Technical Information...
6. Function and Control Service Manual 6.1 Remote Controller Introduction of YAA1FB16(WiFi) Buttons on remote controller Introduction for buttons on remote controller 1. ON/OFF button 5. LIGHT button ● Press this button to turn on/off the air conditioner. ● Press this button to control the LED status on the displayer, the ●...
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Service Manual 1. ON/OFF button button, time value will change quickly), the setting range is 0.5~24 hour(s); press this button again to confirm timer, the character of H ● Press this button to turn on/off the air conditioner. and OFF (ON) will not blink any more. ●...
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Service Manual perform fast cooling or fast heating. There may be some noise, which is the sound of flowing liquid or thermal expansion or cold shrinkage. The air conditioner may blow cool or warm air, which is a normal phenomenon. During cleaning process, please make sure the room is well ventilated to avoid affecting the comfort.
Service Manual 6.2 Description of Each Control Operation ● Indoor unit set fan speed. The compressor, outdoor fan, 4-way valve and electric heating tube stop operation. Under this mode, temperature setting range is 16~30 ℃ . 1. This controller design has the following functions: The display displays the set temperature.
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Service Manual 7. Left&right swing control: 3. Fresh air function (only for the model with fresh air function) Select different left&right swing directions according to the left&right swing remote control status. Left position ① , ① Indoor environment indicator second left position ② , middle position ③ , second right The fresh air model is equipped with the CO sensor to position ④...
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Service Manual the lower limit for 10min}, the unit will stop for reaching the When the above conditions are met at the same time, temperature point in cooling, or enter the ultra-low frequency it will enter defrosting for the first time. At this time, the operation mode;...
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Service Manual 6. Malfunction of temperature sensor: Name of temperature sensor Malfunction condtions Always detect open circuit or Outdoor ambient temperature short circuit malfunction of the temperature sensor; Short circuit detection: Perform short circuit detection of the temperature sensor at all times (the AD sampling value corresponding to the highest temperature that can be detected by the outdoor suction...
7. Notes for Installation and Maintenance Service Manual Safety Precautions: Important! be installed in the circuit. The air switch should be all-pole parting and the contact parting distance should be more than 3mm. Please read the safety precautions carefully before installa- tion and maintenance.
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Service Manual Safety Precautions for Installing and Relocating the Unit: To ensure safety, please be mindful of the following precautions. WARNINGS 1. When installing or relocating the unit, be sure to keep the If compressor starts running when stop valve is open and refrigerant circuit free from air or substances other than the connection pipe is not yet connected, air will be sucked in and specified refrigerant.
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Service Manual Installation notes Safety Precautions for Refrigerant ●To realize the function of the air conditioner unit, a special ●The air conditioner is not allowed to use in a room that refrigerant circulates in the system. The used refrigerant is has running fire (such as fire source,working coal gas ware, the fluoride R32,which is specially cleaned.
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Service Manual Welding Make sure that different kinds of refrigerant wont contaminate with each other. ●If you should cut or weld the refrigerant system pipes in the ●The refrigerant tank should be kept upright at the time of process of maintaining, please follow the steps as below: filling refrigerant.
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Service Manual Main Tools for Installation and Maintenance Level meter Measuring tape Screw driver Impact drill Drill head Electric drill Electroprobe Universal meter Inner hexagon Electronic Torque wrench Open-end wrench spanner leakage detector Vacuum pump Pressure meter Pipe pliers Pipe pliers Pipe cutter Pipe expander Pipe bender...
8. Installation Service Manual 8.1 Installation Dimension Diagram Space to the wall At least 15cm At least 15cm Space to the wall Drainage pipe Installation and Maintenance...
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Service Manual Installation Procedures Start installation Preparation before installation Read the requirements select installation Prepare tools for electric connection location Select indoor unit Select outdoor unit installation location installation location Install wall-mounting Install the support of outdoor unit (select it according to the actual situation) frame, drill wall holes Connect pipes of indoor Fix outdoor unit...
Service Manual 8.2 Installation Parts-checking unit. 4. Make sure that the installation follows the requirement of Name installation dimension diagram. 5. Select a location which is out of reach for children and far away Indoor unit from animals or plants. If it is unavoidable, please add fence for Outdoor unit safety purpose.
Service Manual 8.5 Name Description of Components in the Accessory Box 2. Connect the drain pipe ● Connect the drain pipe in the accessory to the outlet pipe of the indoor unit, and fix it with two rounds of electrical tape. ●...
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Service Manual user, distinguish the front and back, finally cover the healthy filter cover and panel. 6. Confirm the position of pipe outlet and drill a hole ● Confirm the position of pipe outlet The pipe can be leaded out from the left, right and back side of unit.
Service Manual Note: No ventilation connection wire for the models without air suitable, please drill a hole with the diameter of 63mm according discharge function. to the installation position of indoor unit. Please note that the hole should tilt from inside to outside. Note: Please do not damage the wires embedded in the wall when making holes.
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Service Manual 2.Connect the joint (exhaust) and fresh air pipe (exhaust) in 3.Choose the installation location in the outdoor side as shown in place. the figure. 3.Thread the connected fresh air pipe (exhaust) through the wall hole, and fix the joint (exhaust) on the wall with three screws (expansion rubber particles are required).
Service Manual 4. Connection of outdoor ventilation cable 2. Install Drain Joint(Only for some models) 1.Unscrew the screws and open the cover of electrical box (see 1. Connect the outdoor drain joint into the hole on the chassis, as figure a); shown in the picture below.
Service Manual 4. Tighten the union nut with torque wrench by referring to the sheet below. 5. Connect Outdoor Electric Wire 1. Remove the wire clip; connect the power connection wire (only for cooling and heating unit) to the wiring terminal according to the color;...
Service Manual 8.10 Check after Installation and Test Operation 1. Check after Installation Check according to the following requirement after finishing installation. Items to be checked Possible malfunction Has the unit been installed The unit may drop, shake or firmly? emit noise.
9. Maintenance Service Manual 9.1 Judgement by Flashing LED of Indoor Display method of indoor unit (Indicator has 3 kinds Display of display status and method they will be displayed of indoor No. Malfunction name A/C status Possible causes circularly every 5s) unit □...
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Service Manual 1. Indoor or outdoor ambient temperature is too high? Cooling: compressor and 2. Indoor or outdoor fan operates outdoor fan stop, while indoor High temperature □ (3s) abnormally? fan operates protection ☆ (6 times) 3. Filter or condenser is blocked Heating: compressor, outdoor with dirt? fan and indoor fan stop...
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Service Manual Defrosting During defrosting, the defrosting Compressor operates, outdoor The complete unit enters defrosting light is displayed fan stops, and indoor fan mode, which belongs to normal (or power operates operation situation. indicator blinks for 10s and is off for 0.5s) 1.
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Service Manual 1. Control board and compressor are reliably connected? Is it loose? Connection sequence is correct? 2. Compressor coil resistance is normal? Insulation of compressor coil to copper pipe is good? 3. Outdoor fan is abnormal? Cooling: compressor and Compressor 4.
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Service Manual 1. Control board and compressor are reliably connected? Is it loose? Connection sequence is correct? 2. Compressor coil resistance is normal? Insulation of compressor coil to copper pipe is good? 3. Outdoor fan is abnormal? Cooling: compressor and 4.
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Service Manual 1. Measure the power supply voltage to see if it is too low or it is Cooling: compressor and dragged down as the power supply outdoor fan stop, while indoor Low voltage □ (3s) capacity is insufficient? fan operates protection ☆...
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Service Manual Self-detection flow chart of inverter outdoor unit: Connect the self-detection tooling according to the requirements IDU mainboard is damaged Replace the IDU mainboard Self-detection tooling If the automatically locates the complete unit displays detailed malfunction position E6 malfunction and gives indication Replace the IDU mainboard...
Service Manual 9.2 Malfunction detection process 1. Troubleshooting of pipe temperature sensor malfunction Troubleshooting for temperature sensor malfunction Is the wiring terminal between the temperature sensor and the control board loose or poorly contacted? Insert the temperature sensor tightly Is malfunction eliminated Is there short circuit due to trip-over of the...
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Service Manual 2. Troubleshooting of PG motor blockage protection H6 Troubleshooting for H6 malfunction Is the feedback terminal of PG motor connected tightly Insert the feedback terminal of PG motor tightly Is malfunction eliminated Is the control terminal of PG motor connected tightly Insert the control terminal of PG motor tightly...
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Service Manual 3. Troubleshooting of jumper cap malfunction C5 Troubleshooting for C5 malfunction there jumper cap on the controller Assemble the jumper cap with the same model Is malfunction eliminated Is the jumper cap inserted correctly and tightly Insert the jumper cap tightly Is malfunction eliminated...
Service Manual 9.3 Controller Assembly and Maintenance Diagram 1. (The following is the disassembly process, and the installation should be carried out from back to front) After removing the electric box assy, open clasp 1 and 2 or clasp 3 and 4 simultaneously to remove the case cover! Clasp3 Clasp1 Clasp2...
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Service Manual Detection method: Use multimeter diode for detection; Procedures: a. Put the black probe of multimeter on “+” side of rectifier bridge, that is position 1 on the following figure. The red probe contacts position 2 and 3 of the rectifier bridge respectively, that is the AC input side marked with “~”. Read the display value of the multimeter respectively.
Service Manual 9.4 Troubleshooting for Normal Malfunction 1. Air Conditioner can't be Started Up Possible Causes Discriminating Method (Air conditioner Status) Troubleshooting Confirm whether it's due to power failure. If yes, No power supply, or poor connection After energization, operation indicator isnt bright wait for power recovery.
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Service Manual 4. ODU Fan Motor can't Operate Possible causes Discriminating method (air conditioner status) Troubleshooting Connect wires according to wiring diagram to Wrong wire connection, or poor Check the wiring status according to circuit diagram make sure all wiring terminals are connected connection firmly Measure the capacity of fan capacitor with an...
10. Exploded View and Parts List Service Manual 10.1 Indoor Unit The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
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Service Manual Description Description Wall Mounting Frame Sub-assy Air Deflector Sub-assy Evaporator Assy Front Panel Assy Evaporator Support Crank Drainage Hose Stepping Motor Cross Flow Fan Stepping Motor O-Gasket sub-assy of Bearing Right Side Plate Assy Filter Sub-Assy Air Louver 2 Electric Heater Stepping Motor Rear Case assy...
Service Manual 10.2 Outdoor Unit The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
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Service Manual Description Description Top Cover Assy Grill Chassis Sub-assy Condenser Assy Front Panel Assy 4-Way Valve Front Grill Sensor Insert Axial Flow Fan 4-Way Valve Assy Brushless DC Motor Electric Expansion Valve Fitting Motor Support Electric Expansion Valve Sub-Assy Left Side Plate Wire Clamp Clapboard...
Service Manual 10.3 Fresh Air Ventilation Device (Exhaust) Description Ventilation Box Cover Transformer Brushless DC Ventilation Fan Electric Box Cover Rubber Band Motor Plate Electric Expansion Valve Sub-Assy Some models may not contain some parts, please refer to the actual product. Installation and Maintenance...
11. Removal Procedure Service Manual 11.1 Removal Procedure of Indoor Unit Caution: discharge the refrigerant completely before removal. Step Procedure 1. Complete unit 2. Remove air deflector a. Rotate the big and small air deflectors to the position as shown in the figure. b.
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Service Manual Step Procedure 3. Remove panel assy Screw of Panel display Display a. Open the panel; b. Remove the screw of the display; c. Remove the panel assy. 4. Remove electric box cover, display, upper cover, and front grill sub-assy Front grill Display Electric...
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Service Manual Step Procedure 6. Remove front case assy Front case Clasp of front case a. Disconnect the wiring terminal of up&down swing motor; b. Remove the 6 fastening screws as shown in the figure; c. Break off the 4 clasps of front case as shown in the figure;...
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Service Manual Step Procedure 9. Remove electric box assy Screws of grounding wire Fastening screw of electric box Fastening screw a. Remove the fastening screw of wire clamp; b. Remove the 2 screws of grounding wire; c. Remove the fastening screw of electric box; d.
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Service Manual Step Procedure 12. Remove evaporator assy Fastening screw of Evaporator evaporator support assy a. Using the screwdriver to remove the 2 fastening screws. b. Break off the connecting pipe on the evaporator assy. c. Remove the evaporator assy to separate the evaporator assy from the rear case.
Service Manual 11.2 Removal Procedure of Outdoor Unit Warning: Be sure to wait for a minimum of 20 minutes after turning off all power supplies and discharge the refrigerant completely before removal. Step Procedure 1. Before disassembly 2. Remove big handle and valve cover big handle Remove the screws fixing big handle, valve cover and then remove them.
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Service Manual Step Procedure 4. Remove front panel assy Remove connection screws connecting the front panel assy with the chassis and the motor support, and then remove the front panel assy. Front Panel Assy 5. Remove right side plate assy Rescrew the ground screws, remove the ground wires, loosen the screws fixing terminal board, remove the terminal board, rescrew the screws fixing the right...
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Service Manual Step Procedure 7. Remove electric box assy Remove the terminals, lift up and rotate the electrical box assy to the right so that the snaps on the clapboard are removed and the electrical box assy are removed. 8. Remove motor 8.
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Service Manual Step Procedure 10. Remove valve suppprt Remove the valve support bolck, remove the screws fixing the gas valve and the liquid valve, Remove the screws fixing valve support, then remove the valve support. valve supprt 11.Remove gas valve and liquid valve Unsolder the welding joint connecting the gas valve and the liquid valve, remove them.
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Service Manual Step Procedure 13. Remove electronic expansion valve electric expand Remove the terminals of the electric expand valve valve fitting fitting and rotate to remove the electric expand valve electric expansion fitting. valve sub-Assy Unsolder the welding joint connecting the electronic expansion Valve and then remove the electronic expansion valve.
Service Manual Appendix 3: Pipe Expanding Method Pipe Note: Improper pipe expanding is the main cause of refrigerant leakage.Please expand Pipe cutter the pipe according to the following steps: A:Cut the pip Leaning Uneven Burr ● Confirm the pipe length according to the distance of indoor unit and outdoor unit. ●...
Service Manual Appendix 4: List of Resistance for Temperature Sensor Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor Units (15K) Temp( Resistance(kΩ) Temp( Resistance(kΩ) Temp( Resistance(kΩ) Temp( Resistance(kΩ) 138.10 49.02 18.75 7.97 128.60 44.31 17.14 7.35 115.00 40.09 15.68 6.79 102.90...
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JF00304861 GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI Add: West Jinji Rd, Qianshan, Zhuhai,Guangdong, China, 519070 Tel: (+86-756) 8522219 Fax: (+86-756) 8669426 E-mail: global@cn.gree.com www.gree.com For product improvement, specifications and appearance in this manual are subject to change without prior notice.