Gree GWH12AKCXD-K6DNA1A Service Manual
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Gree GWH12AKCXD-K6DNA1A Service Manual

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Service Manual
GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI

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Summary of Contents for Gree GWH12AKCXD-K6DNA1A

  • Page 1 Change for life Service Manual GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI...

  • Page 2: Table Of Contents

    6. Function and Control ..........15 6.1 Remote Controller Introduction ................15 6.2 Brief Description of Models and Functions ..........18 6.3 GREE+ App Operation Manual ................21 6.4 Ewpe Smart App Operation Manual ..............22 Part II : Installation and Maintenance ....23 7.
  • Page 3 Service Manual 8.6 Installation of Outdoor unit .................33 8.7 Vacuum Pumping and Leak Detection ............34 8.8 Check after Installation and Test operation ..........35 9. Maintenance ..............36 9.1 Error Code List ......................36 9.2 Procedure of Troubleshooting ................40 9.3 Troubleshooting for Normal Malfunction ............54 10.

  • Page 4: Part I : Technical Information

    Model list: Indoor product Outdoor Remote Model Product code Indoor model Outdoor model code product code Controller: 1 GWH09AKCXD-K6DNA1A CB340000401 GWH09AKCXD-K6DNA1A/I CB340N00401 GWH09AKCXD-K6DNA1A/O CB340W00401 2 GWH12AKCXD-K6DNA1A CB340000501 GWH12AKCXD-K6DNA1A/I CB340N00501 GWH12AKCXD-K6DNA1A/O CB340W00501 YAA1FB11 3 GWH18AKCXF-K6DNA1A CB340000601 GWH18AKCXF-K6DNA1A/I CB340N00601 GWH18AKCXF-K6DNA1A/O CB340W00601 Technical Information...

  • Page 5: Specifications

    2. Specifications Service Manual 2.1 Specification Sheet Model GWH09AKCXD-K6DNA1A GWH12AKCXD-K6DNA1A Product Code CB340000401 CB340000501 Rated Voltage 220-240 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Outdoor Cooling Capacity 2700 3530 Heating Capacity 3600 4200 Cooling Power Input Heating Power Input Cooling Current Input 2.46...
  • Page 6 Service Manual Outdoor Unit Model GWH09AKCXD-K6DNA1A/O GWH12AKCXD-K6DNA1A/O Outdoor Unit Product Code CB340W00401 CB340W00501 ZHUHAI LANDA ZHUHAI LANDA Compressor Manufacturer COMPRESSOR CO., LTD COMPRESSOR CO., LTD Compressor Model QXF-B103zH170E QXF-B103zH170E Compressor Oil FW68DA FW68DA Compressor Type Rotary Rotary Compressor LRA. Compressor RLA...
  • Page 7 Service Manual Model GWH18AKCXF-K6DNA1A Product Code CB340000601 Rated Voltage 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Cooling Capacity 5300 Heating Capacity 5600 Cooling Power Input 1395 Heating Power Input 1400 Cooling Current Input Heating Current Input Rated Input 2500 Rated Cooling Current 11.5...
  • Page 8 Service Manual Outdoor Unit Model GWH18AKCXF-K6DNA1A/O Outdoor Unit Product Code CB340W00601 ZHUHAI LANDA Compressor Manufacturer COMPRESSOR CO. LTD. Compressor Model QXF-M130zF170 Compressor Oil RB68GX or equivalent Compressor Type Rotary Compressor LRA. Compressor RLA 5.36 Compressor Power Input 1196 Compressor Overload Protector Throttling Method Electron expansion valve Set Temperature Range...

  • Page 9: Capacity Variation Ratio According To Temperature

    Service Manual 2.2 Capacity Variation Ratio According to Temperature Cooling Heatling 9/12K 9/12K Condition Heatin g Condition Cooling Indoor:DB20 °C /WB15°C Indoor:DB27°C/WB19°C Indoor air flow: Super High Indoor air flow:Super High Pipe length: Pipe length:5m -20 -15 -10 20 24 -15 -10 -5 10 15 20 25 30 35 40 Outdoor Temp.(°C)

  • Page 10: Outline Dimension Diagram

    3. Outline Dimension Diagram Service Manual 3.1 Indoor Unit Unit:mm 3.2 Outdoor Unit GWH09AKCXD-K6DNA1A/O GWH12AKCXD-K6DNA1A/O Unit:mm Technical Information...
  • Page 11 Service Manual GWH18AKCXF-K6DNA1A/O Unit:mm Technical Information...

  • Page 12: Refrigerant System Diagram

    4. Refrigerant System Diagram COOLING Service Manual 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 Strainer Electric expand valve COOLING HEATING Connection pipe specification: Liquid pipe:1/4"...

  • Page 13: Electrical Part

    5. Electrical Part Service Manual 5.1 Wiring Diagram ●Instruction Symbol Symbol Color Symbol Symbol Color Symbol Name White Green Jumper cap Yellow Brown COMP Compressor Blue Grounding wire YEGN Yellow/Green Black Violet Orange Note: Jumper cap is used to determine fan speed and the swing angle of horizontal lover for this model. ●...
  • Page 14 Service Manual ● Outdoor Unit 09/12K WARNING OPTIONAL OPTIONAL OPTIONAL Bottom 4-WAY ELECTRONIC OUTTUBE OUTROOM EXHAUST Please don't touch any EXPANSION Band VALVE TEMP. TEMP. TEMP. VALVE terminal when the machine is Heater SENSOR SENSOR SENSOR running ,stopping or has been powered off for less than 30 minutes to prevent the risk of electric shock !

  • Page 15: Pcb Printed Diagram

    Service Manual 5.2 PCB Printed Diagram Indoor Unit Name Name Communication interface of service Left & right swing 1 self-detection device Communication terminal of indoor unit Left & right swing 2 and outdoor unit Fuse 10 Jumper cap Live wire terminal Display board interface Grounding wire interface 12 Temperature sensor terminal...
  • Page 16 Service Manual Outdoor Unit 09/12K Name Earthing wire Neutral wire, live wire and communication cable 4-way valve Electric heating belt of chasssis Outdoor fan Electronic expansion valve Overload Temperature sensor Three-phase terminal of compressor Technical Information...
  • Page 17 Service Manual Name Name Eathing wire Overload Live wire 10 Terminal of compressor Neutral wire Program debugging interface Communication cable 12 DRED interface 4-way valve 13 Electronic expansion valve interface Electric heating belt of chassis / 2-way valve 14 E disk interface DC fan 15 Monitor interface Temperature sensor...

  • Page 18: Function And Control

    6. Function and Control Service Manual 6.1 Remote Controller Introduction ON/OFF button button cool button heat button fan button I sense button button button left and right fixed mode button angle button Up and down fixed E-heater button angle button health button timer button WiFi button...
  • Page 19 Service Manual Note: Press this button, the air conditioner will conduct heating mode. ● This series has no health and breeze functions. 11. I SENSE 1.ON/OFF In Cool or Heat mode, press this button and the unit will work in the Press this button to turn on/off the air conditioner.
  • Page 20 Service Manual 15.SLEEP NOTICE: Don’t mix the new battery with the old one and batteries of different Press this button, the sleeping status will be circulated in the following types shall sequence: not be mixed. The remote controller shall be kept well; Liquid shall not flow into the remote controller;...

  • Page 21: Brief Description Of Models And Functions

    Service Manual 6.2 Brief Description of Models and Functions Indoor Unit (3) Auto fan ● 1.Basic function of system Heating mode: During auto heating mode or normal heating ode, auto fan speed will adjust the fan speed automatically according (1)Cooling mode to ambient temperature and set temperature.
  • Page 22 Service Manual Outdoor Unit temperature display status (corresponding remote control code: ● 10) from other display status (corresponding remote control code: 1. Cooling mode: 00, 01,11),controller will display indoor ambient temperature for 3s and then turn back to display set temperature. Working condition and process of cooling mode: Under this mode, indoor fan operates at set fan speed.
  • Page 23 Service Manual ⑥ Under the condition that compressor is turned on, when unit is changed to heating mode from cooling or drying mode, 4-way valve will be energized in 2~3mins delay. Note: Tcompensation is determined by IDU and ODU. If IDU controls the compensation temperature, then Tcompensation is determined according to the value sent by IDU to ODU;...

  • Page 24: Gree+ App Operation Manual

    GREE+ App Download Linkage Scan the QR code or search "GREE+" in the application market to download and install it. When "GREE+" App is installed, register the account and add the device to achieve long-distance control and LAN control of Gree smart home appliances.

  • Page 25: Ewpe Smart App Operation Manual

    Service Manual 6.4 Ewpe Smart App Operation Manual Control Flow Chart Internet Cloud intelligent Home Wi-Fi Cellular/ home Other Wi-FI appliances Home wireless router Home Wi-Fi Operating Systems Requirement for User's smart phone: iOS system Android system Support iOS7.0 and Support Android 4.4 and above version above version...

  • Page 26: Part Ii : Installation And Maintenance

    7. Notes for Installation and Maintenance Service Manual Safety Precautions: Important! 11. For the air conditioner without plug, an air switch must be installed in the circuit. The air switch should be all-pole parting and the contact parting distance should be more than Please read the safety precautions carefully before 3mm.
  • Page 27 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 5.When installing the unit, make sure that connection keep the refrigerant circuit free from air or substances pipe is securely connected before the compressor other than the specified refrigerant.
  • Page 28 Service Manual Safety Precautions for Refrigerant ●The air conditioner is not allowed to use in a room that has running fire (such as fire source,working coal gas ware, ●To realize the function of the air conditioner unit, a special operating heater). refrigerant circulates in the system.
  • Page 29 Service Manual ●Make sure that there isnt any naked flame near the outlet of the vacuum pump and its well-ventilated. ●The refrigerant should be recycled into the specialized storage tank. Filling the refrigerant ●Use the refrigerant filling appliances specialized for R32. Make sure that different kinds of refrigerant wont contaminate with each other.
  • Page 30 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...

  • Page 31: Installation

    8. Installation Service Manual 8.1 Installation Dimension Diagram Space to the wall At least 15cm At least 15cm Space to the wall Space to the obstruction At least 50cm Drainage pipe Installation and Maintenance...
  • Page 32 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 the support of outdoor unit Install wall-mounting (select it according to the actual situation) frame, drill wall holes Connect pipes of indoor Fix outdoor unit...

  • Page 33: Installation Parts-Checking

    Service Manual 8.2 Installation Parts-checking 3. Outdoor Unit: (1) Select a location where the noise and outflow air emitted by Name the outdoor unit will not affect neighborhood. (2) The location should be well ventilated and dry, in which the Indoor unit outdoor unit wont be exposed directly to sunlight or strong wind.

  • Page 34: Installation Of Indoor Unit

    Service Manual 8.5 Installation of Indoor Unit 4. Outlet Pipe (1) The pipe can be led out in the direction of right, rear right, left 1. Choosing Installation Iocation or rear left.(As show in Fig.3) Recommend the installation location to the client and then confirm (2) When selecting leading out the pipe from left or right, please it with the client.
  • Page 35 Service Manual 6. Install Drain Hose (1) Connect the drain hose to the outlet pipe of indoor unit.(As show in Fig.8) black brown blue (2) Bind the joint with tape.(As show in Fig.9) green Fig.13 Outdoor unit connection Drain hose Outlet pipe Note: The wiring connect is for reference only, please refer to the actual one.

  • Page 36: Installation Of Outdoor Unit

    Service Manual Note: (1) The power cord and control wire Can't be crossed or winding. (2) The drain hose should be bound at the bottom. 9. Hang the Indoor Unit Drain vent (1) Put the bound pipes in the wall pipe and then make them pass Chassis Drain hose through the wall hole.

  • Page 37: Vacuum Pumping And Leak Detection

    Service Manual 5. Connect Outdoor Electric Wire (1) Remove the wire clip; connect the power connection wire and signal control wire (only for cooling and heating unit) to the wiring terminal according to the color; fix them with screws.(As show in The drain hose can't be fluctuant Fig.23) The water outlet...

  • Page 38: Check After Installation And Test Operation

    Service Manual 8.8 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.

  • Page 39: Maintenance

    9. Maintenance Service Manual 9.1 Error Code List Display Method Possible Causes(For specific maintenance Malfunction of Indoor Unit A/C Status method, please refer to the following procedure of Name (Error Code) troubleshooting) During cooling and drying operation, Possible reasons: High pressure except indoor fan operates, all loads 1.
  • Page 40 Service Manual During cooling and drying operating, Outdoor ambient Outdoor temperature sensor hasnt been connected well or is compressor stops while indoor fan temperature sensor is damaged. Please check it by referring to the resistance table operates; During heating operation, the open/short circuited for temperature sensor) complete unit will stop operation...
  • Page 41 Service Manual During cooling and drying operation, Malfunction of module compressor will stop while indoor fan will temperature sensor operate; Replace outdoor control panel AP1 During heating operation, the complete circuit unit will stop After the complete unit is de-energized for 20mins, check During cooling operation, compressor will Module high whether the thermal grease on IPM Module of outdoor...
  • Page 42 Service Manual During cooling and drying operation, Malfunction of phase compressor will stop while indoor fan will current detection Replace outdoor control panel AP1 operate; During heating operation, the circuit for compressor complete unit will stop During cooling and drying operation, Malfunction of voltage compressor will stop while indoor fan will dropping for DC...

  • Page 43: Procedure Of Troubleshooting

    Service Manual 9.2 Procedure of Troubleshooting ●Indoor unit: 1. Malfunction of Temperature Sensor F1, F2 Main detection points: ● Is the wiring terminal between the temperature sensor and the controller loosened or poorly contacted? ● Is there short circuit due to trip-over of the parts? ●...
  • Page 44 Service Manual 2. Malfunction of Blocked Protection of IDU Fan Motor H6 Main detection points: ● SmoothlyIs the control terminal of PG motor connected tightly? ● SmoothlyIs the feedback interface of PG motor connected tightly? ● The fan motor can't operate? ●...
  • Page 45 Service Manual 3. Malfunction of Protection of Jumper Cap C5 Main detection points: ● Is there jumper cap on the mainboard? ● Is the jumper cap inserted correctly and tightly? ● The jumper is broken? ● The motor is broken? ●...
  • Page 46 Service Manual 4. Malfunction of Zero-crossing Inspection Circuit Malfunction of the IDU Fan Motor U8 Main detection points: ● Instant energization afte de-energization while the capacitordischarges slowly? ● The zero-cross detectioncircuit of the mainboard is defined abnormal? Malfunction diagnosis process: Start Turn power off for 1minute,the turn...
  • Page 47 Service Manual 5. High Temperature and Overload Protection (AP1 below means control board of outdoor unit) E8 Start Normal protection, please use it Unit restarts If the outdoor ambient temperature is after improving the outdoor ambient normally higher than 53°C? temperature Improve the radiating environment of Unit restarts...
  • Page 48 Service Manual 6. Malfunction of detecting plate(WIFI) JF Start check if the connection wire are correctly connected detecting Replace the plate with the same model Is malfunction eliminated Replace the mainboard with the same model The end Installation and Maintenance...
  • Page 49 Service Manual ●Outdoor unit: 1.Capacity charging malfunction (outdoor unit malfunction) (AP1 below is control board of outdoor unit) Main detection point: ● Detect if the voltage of L and N terminal of wiring board is between 210AC-240AC by alternating voltage meter; ●...
  • Page 50 Service Manual 2.Diagnosis for anti-high temperature, overload protection (AP1 below is control board of outdoor unit) Main detection point: ● If the outdoor ambient temperature is in normal range; ● If the indoor and outdoor fan is running normal; ● If the radiating environment of indoor and outdoor unit is well. Malfunction diagnosis process: Anti-high temperature, overload protection...
  • Page 51 Service Manual 3.IPM protection, phase current overcurrent (the control board as below indicates the control board of outdoor unit) H5/P5 Mainly detect: (1) Compressor COMP terminal (2) voltage of power supply (3) compressor (4) Refrigerant-charging volume (5) air outlet and air inlet of outdoor/indoor unit Troubleshooting: Turn on the unit after energization...
  • Page 52 Service Manual 4. Start-up failure (following AP1 for outdoor unit control board) Mainly detect: ●Whether the compressor wiring is connected correct? ●Is compressor broken? ●Is time for compressor stopping enough? Fault diagnosis process: Power on the unit Restart it up after Is stop time of the compressor 3 minutes longer than 3 minutes?
  • Page 53 Service Manual 5. Out of step diagnosis for the compressor (AP1 hereinafter refers to the control board of the outdoor unit) Mainly detect: ●Is the system pressure too high? ●Is the input voltage too low? Fault diagnosis process: Out of step occurs once the Out of step occurs in unit is powered on.
  • Page 54 Service Manual 6. Overload and air exhaust malfunction diagnosis (following AP1 for outdoor unit control board) Mainly detect: ●Is the PMV connected well or not? Is PMV damaged? ●Is refrigerant leaked? Fault diagnosis process: 20 minutes after the complete unit is powered off Is the terminal FA for the Connect the...
  • Page 55 Service Manual 7. Communication malfunction: (following AP1 for outdoor unit control board) Mainly detect: ●Is there any damage for the indoor unit mainboard communication circuit? Is communication circuit damaged? ●Detect the indoor and outdoor units connection wire and indoor and outdoor units inside wiring is connect well or not, if is there any damage? Fault diagnosis process:...
  • Page 56 Service Manual 8. Malfunction of Overcurrent Protection Main detection points: ● Is the supply voltage unstable with big fluctuation? ● Is the supply voltage too low with overload? ● Hardware trouble? Malfunction diagnosis process: Start Is malfunction Is the supply voltage unstable of the rated voltage on the nameplate eliminated Is the supply voltage too low...

  • Page 57: Troubleshooting For Normal Malfunction

    Service Manual 9.3 Troubleshooting for Normal Malfunction 1. Air Conditioner Can't be Started Up Possible Causes Discriminating Method (Air conditioner Status) Troubleshooting Confirm whether its due to power failure. If yes, No power supply, or poor connection After energization, operation indicator isnt bright wait for power recovery.
  • Page 58 Service Manual 4. ODU Fan Motor Can't Operate Possible causes Discriminating method (air conditioner status) Troubleshooting Wrong wire connection, or poor Check the wiring status according to circuit Connect wires according to wiring diagram to make connection diagram sure all wiring terminals are connected firmly Measure the capacity of fan capacitor with an Capacity of the ODU fan motor is universal meter and find that the capacity is out of...

  • Page 59: Exploded View And Parts List

    10. Exploded View and Parts List Service Manual 10.1 Indoor Unit 36.1 33.1 40 39 38 37 15.1 The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
  • Page 60 Service Manual Description Front Panel Sensor Sub-assy(HUMAN BODY INDUCTION METER) Guide Louver Decorative Board Sub-assy Seal Cap(terminal) Screw Cover Right Driving Box Sub-assy Stepping Motor Connecting Rod Sub-assy Holder (terminal) Wire Clamp Electric Box 3 Magnetic Ring Electric Box 2 Main Board Electric Box 1 Sweep Motor Assembly (right)

  • Page 61: Outdoor Unit

    Service Manual 10.2 Outdoor Unit 09/12K The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
  • Page 62 Service Manual Description Top Cover Assy Grill Condenser Assy 4-Way Valve Sensor Insert 4-Way Valve Assy Electric Expansion Valve Fitting Electric Expansion Valve Sub-Assy Wire Clamp Right Side Plate Earthing Plate Sub-Assy Handle Valve Cover Cut-off valve 1/4(N) Cut-off valve 3/8(N) Valve Support Compressor and Fittings Chassis Sub-assy...
  • Page 63 Service Manual 9 10 The component is only for rererence;please refer to the actual product Installation and Maintenance...
  • Page 64 Service Manual Description Front Grill Front Panel Axial Flow Fan Chassis Sub-assy Compressor and Fittings Electronic Expansion Valve Right Side Plate Valve Support Cut-off valve 1/4(N) Cut-off valve 5/8(N) Valve Cover Handle Terminal Board 4-Way Valve Assy Condenser Assy Clapboard Assy Motor Support Brushless DC Motor Top Cover Assy...

  • Page 65: Removal Procedure

    11. Removal Procedure Service Manual 11.1 Removal Procedure of Indoor Unit Caution: discharge the refrigerant completely before removal. Step Procedure 1. Remove horizontal louver Hold the horizontal louver with two hands and pull out the linkage pole slowly; grasp the linage pole of left drive box with one hand and grasp the left end of horizontal louver board sub-assy with the other hand;...
  • Page 66 Service Manual Step Procedure 3. Remove filter assy Filter Assy Hold the two places (as shown in the right figure) of filter sub-assy with two hands, pull it backwards and then turn it upwards to unclose the filter sub- assy; separate the clasp of filter sub-assy and then remove it.
  • Page 67 Service Manual Step Procedure clasps Loosen the clasps on the back of front case assy. Life the front case assy upwards to remove it. 5. Remove display board and drive motor clasp Remove the screw fixing the decorative plate, Remove the decorative plate. Decorative plate screw screw...
  • Page 68 Service Manual Step Procedure Remove the screw fixing the left and right drive screws motor; disconnect the wiring terminal in the motor and then remove the drive motor Terminals screws Terminals screw 5. Remove electric box assy Remove the screw fixing electric box 3, Remove the electric box 3.
  • Page 69 Service Manual Step Procedure Remove the screw fixing electric box assy, Remove the electric box assy. Screw 6. Remove rear case assy Screws Separately remove the screws fixing the left side plate, right side plate and mice-prevention board, and then remove them. Loosen the clasp of connection pipe clamp and then remove the connection pipe clamp.
  • Page 70 Service Manual Step Procedure Evaporator assy Clasp 7. Remove motor and cross flow blade Remove 4 screws fixing motor clamp and then remove the motor clamp. Screws Motor clamp Remove the at the connection place of cross flow cross flow blade and motor;...
  • Page 71 Service Manual Step Procedure 8.Remove drain hose Clockwisely rotate the hook in the drain pipe, make Clasp the hook separate from the bottom plastic pole and then pull out the drain pipe. Drainage Hose 9. Remove Swing motor Loosen the screws fixing the left/right swing motor and then remove the swing motor.

  • Page 72: Removal Procedure Of Outdoor Unit

    Service Manual Caution: discharge the refrigerant 11.2 Removal Procedure of Outdoor Unit completely before removal. 09/12K Step Procedure 1. Before disassembly 2. Remove big handle and valve cover Remove the screws fixing big handle, valve cover and then remove them. big handle valve cover 3.
  • Page 73 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 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 plate, and remove the right side plate assy.
  • Page 74 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 and motor support Motor support Remove the screws fixing the motor and then remove the motor.
  • Page 75 Service Manual Step Procedure 10. Remove 4-way valve assy 4-way valve assy Unsolder the welding joints connecting the 4-way valve assy, remove the 4-way valve. Note: Before unsoldering the welding joint, wrap the 4-way valve with a wet cloth completely to avoid damage to the valve caused by high temperature.
  • Page 76 Service Manual Step Procedure Compressor 13. Remove compressor Remove the 3 foot nuts on the compressor and then remove the compressor. Technical Information...
  • Page 77 Service Manual Caution: discharge the refrigerant completely before removal. Step Procedure 1. Remove handle handle TRemove the screw fixing the handle and then remove screw the handle. 2. Remove valve cover screw Remove the screw fixing the valve cover and then remove the valve cover.
  • Page 78 Service Manual Step Procedure 4. Remove grille grille Remove the screws fixing the grille and then remove the panel grille. screws 5. Remove front panel front panel screws Remove screws fixing the front panel and then remove the front panel. screws 6.
  • Page 79 Service Manual Step Procedure 7. Remove electric box assy screws electric box assy Remove the screws fixing the electricbox; loosen the wire bundle; pull out the wiring terminals and then pull electric boxupwards to remove it. 8. Remove axial flow blade axial flow blade Remove nut fixing the blade and then remove the...
  • Page 80 Service Manual Step Procedure 10. Remove motor support motor support Remove screws fixing the motor support and then remove the motor support. screws 11. Remove cut off valve and valve support sub-assy Remove screws fixing the cut off valve and then remove the cut off valve;...
  • Page 81 Service Manual Step Procedure left side plate 13. Remove left side plate Remove the screws fixing the left side plate and the chassis, and then remove the left side plate. screws 14. Remove 4-way valve assy and electronic expansion valve assy 4-way valve assy Unsolder the welding joints connecting electronic expansion valve assy the 4-way valve assy with...

  • Page 82: Appendix

    Appendix Service Manual Appendix 1: Reference Sheet of Celsius and Fahrenheit Conversion formula for Fahrenheit degree and Celsius degree: Tf=Tcx1.8+32 Set temperature Fahrenheit display Fahrenheit Celsius Fahrenheit display Fahrenheit Celsius Fahrenheit display Fahrenheit Celsius temperature（℉） temperature（℉） temperature（℉） （℉） （℃） （℉） （℃）...

  • Page 83: Appendix 3: Pipe Expanding Method

    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. ●...

  • Page 84: Appendix 4: List Of Resistance For Temperature Sensor

    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 36.32...
  • Page 85 JF00305178 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 For product improvement, specifications and appearance in this manual are subject to change without prior notice.

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