Gree GVH48ALXH-K6DNC7A/I Service Manual
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Gree GVH48ALXH-K6DNC7A/I Service Manual

Gree GVH48ALXH-K6DNC7A/I Service Manual

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Service Manual
GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI

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Summary of Contents for Gree GVH48ALXH-K6DNC7A/I

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

  • Page 2: Table Of Contents

    6. Function and Control ..........18 6.1 Function Buttons of Air Conditioner ...............18 6.2 Remote Controller Introduction ...............20 6.3 GREE+ App Operation Manual ................25 6.4 Description of Each Control Operation ............26 Part II : Installation and Maintenance ....29 7. Notes for Installation and Maintenance ...
  • Page 3 Service Manual 8.3 Selection of Installation Location ..............38 8.4 Electric Connection Requirement ..............38 8.5 Installation of Indoor Unit ..................39 8.6 Installation of Outdoor Unit ................40 8.7 Vacuum Pumping and Leak Detection ............42 8.8 Check after Installation and Test Operation ..........42 9.

  • Page 4: Part I : Technical Information

    1. Summary Indoor Unit: GVH48ALXH-K6DNC7A/I GVH48ALXK-M6DNC7A/I Outdoor Unit: GVH48ALXH-K6DNC7A/O GVH48ALXK-M6DNC7A/O Remote Controller: On/Off Health UD-swing Power LR-swing Timer leep Light...

  • Page 5: Specifications

    2. Specifications 2.1 Specification Sheet Model GVH48ALXK-M6DNC7A Product Code Rated Voltage 380-415 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Cooling Capacity 12500 Heating Capacity 14500 Cooling Power Input 3790 Heating Power Input 3860 Cooling Power Current Heating Power Current Rated Input 5700 Rated Cooling Current...
  • Page 6 Outdoor Unit Model GVH48ALXK-M6DNC7A/O Outdoor Unit Product Code Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO., LTD. Compressor Model QXFS-D280zX070 Compressor Oil FW68DA(FW68L) Compressor Type Rotary Compressor LRA. Compressor RLA Compressor Power Input 3200 Compressor Overload Protector Throttling Method Electron expansion valve Set Temperature Range ºC 16~30...

  • Page 7: Capacity Variation Ratio According To Temperature

    2.2 Capacity Variation Ratio According to Temperature Cooling: Heating: Conditions Conditions Indoor: DB20°C/WB15°C Indoor: DB27°C/WB19°C Indoor air flow: High Indoor air flow: High Pipe length: 5m Pipe length: 5m Outdoor Temp. (°C) Outdoor Temp. (°C)

  • Page 8: Cooling And Heating Data Sheet In Rated Frequency

    2.3 Cooling and Heating Data Sheet in Rated Frequency Cooling: Pressure of gas pipe connecting Inlet and outlet pipe temperature of Rated cooling condition(°C) (DB/WB) indoor and outdoor unit heat exchanger Fan speed of Fan speed of Model indoor unit outdoor unit Indoor Outdoor...

  • Page 9: Outline Dimension Diagram

    3. Outline Dimension Diagram 3.1 Indoor Unit Unit:mm Model 48K(XH) 1882...
  • Page 10 Unit:mm Model 48K(XK) 1882...

  • Page 11: Outdoor Unit

    3.2 Outdoor Unit GVH48ALXH-K6DNC7A/O 1000 Unit:mm...
  • Page 12 GVH48ALXK-M6DNC7A/O 1020 Unit:mm...

  • Page 13: Refrigerant System Diagram

    4. Refrigerant System Diagram COOLING Heat pump model Heat pump model Outdoor unit Indoor unit Gas pipe side Valve 4-Way valve Di s charge Heat Accumlator Suction exchanger Compressor (evaporator) Heat exchanger Liquid pipe (condenser) side Valve Electron Strainer Strainer expansion valve COOLING...

  • Page 14: Electrical Part

    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 GVH48ALXH-K6DNC7A/I ROOM TUBE TEMP. TEMP. DC-MOTOR SENSOR SENSOR UP-DOWN LEFT-RIGHT...
  • Page 15 GVH48ALXK-M6DNC7A/I ROOM TUBE TEMP. TEMP. UP-DOWN DC-MOTOR LEFT-RIGHT SENSOR SENSOR STEPPING STEPPING YEGN Note: Motor ground MOTOR MOTOR only applies to the iron shell motor. θ θ MAGNETIC RING MAGNETIC TERMINAL BLOCK RING SWING-UD SWING-LR DC-MOTOR T-SENSOR N(1) (COM-OUT) PRINTED CIRCUIT BOARD AC-L REACTOR YEGN...
  • Page 16 ● Outdoor Unit GVH48ALXH-K6DNC7A/O OPTIONAL OPTIONAL WARNING OUTROOM EXHAUST BOTTOM OUTTUBE ELECTRONIC BAND EXPANSION TEMP. TEMP. TEMP. Please don't touch any terminal when the HEATER SENSOR SENSOR SENSOR VALVE machine is running ,stopping or has been powered off for less than 30 minutes to prevent the risk of electric shock ! MAGNETIC RING N(1)
  • Page 17 GVH48ALXK-M6DNC7A/O FILTER BOARD MAGNETIC REACTOR YEGN TERMINAL RING BLOCK POWER OUTTUBE OUTROOM EXHAUST CONDENSER TEMP. TEMP. TEMP. MENDIUM PIPE SENSOR SENSOR SENSOR TEMP.SENSOR TERMINAL θ θ θ θ MAGNETIC BLOCK RING N(1) T_SENSOR1 T_LAC AP2 MAIN BOARD MAGNETIC JUMP RING YEGN YEGN EKV1...

  • Page 18: Pcb Printed Diagram

    5.2 PCB Printed Diagram ● Indoor Unit GVH48ALXH-K6DNC7A/I GVH48ALXK-M6DNC7A/I Name Name Interface of live wire Interface of earthing wire Connection needle stand of display Fuse board Interface of communication wire for Left & right swing interface outdoor unit Interface of netural wire Up &...
  • Page 19 ● Outdoor Unit GVH48ALXH-K6DNC7A/O Name Name Neutral Wire Insertion Temperature Sensor Needle Stand Earthing Wire Insertion Compressor Overload Needle Stand Live Wire Insertion Electronic Expansion Valve Needle Stand Communication Wire Insertion Electronic Expansion Valve Needle Stand Four-way Valve Needle Stand DRED Communication Needle Stand Chassis Electric Heating Belt Needle Stand EEP Flash Drive Needle Stand...
  • Page 20 GVH48ALXK-M6DNC7A/O 11 12 Name Name Name Live wire L1 Neutral wire of communication Electric Expand Valve 2 Live wire L2 Live wire of communication Live wire L3 Wiring terminal of fan Neutral wire (N) 4-way valve Live wire L3-1 Jumper Compressor (U) Temperature Sensor Tube temperature sensor of...

  • Page 21: Function And Control

    6. Function and Control 6.1 Function Buttons of Air Conditioner Buttons Name and Function ON/OFF button MODE button FAN button FUNCTION button ON/OF F button MODE FUNC. Introduction for icons on display screen of air conditioner Ambient temperature Timer Operation or set temperature display display...
  • Page 22 Service Manual set only in heating mode). When timer or auxiliary heating icon upper limit temperature. is blinking, it means this function can be set. Press "▲" or "▼" 3.Upper temperature limit can be set only after the lower button to set function. If there’s no operation change within 5s temperature limit has been set;...

  • Page 23: Remote Controller Introduction

    6.1 Remote Controller Introduction Buttons on remote controller Quiet Set fan speed Turbo mode Send signal Auto mode Cool mode Dry mode Fan mode Heat mode Set temperature Indoor ambient temp. Power limiting operation TIMER ON / TIMER OFF Set time Left &...
  • Page 24 ● This mode indicator is not available for some models. to start health and air functions simultaneously; LCD displays " ● Cooling only unit won't receive heat mode signal. If setting heat " and " ". Press this button for the third time to quit health and air mode with remote controller, press "...
  • Page 25 ● For the model with one outdoor unit and two indoor units, if any Otherwise, remote controller will exit the setting status automatically. one of indoor units enters into power limiting function, the outdoor Sleep button unit will enter into the set limiting power mode of indoor unit; when Under Cool or Heat mode, press this button to turn on Sleep two indoor units enter into power limiting mode, then the power of function.
  • Page 26 ● Under °F temperature display, the remote controller will display turned on, you can leave the room. When auto clean is finished, 46°F heating. the air conditioner will enter standby status. Child lock function ● This function is only available for some models. Night mode Hold "...
  • Page 27 between them. ● Signal may be interfered easily in the room where there is fluorescent lamp or wireless telephone; remote controller should be close to indoor unit during operation. ● Replace new batteries of the same model when replacement is required.

  • Page 28: 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 29: Description Of Each Control Operation

    6.4 Description of Each Control Operation Indoor Unit 2. Other control ● (1) Buzzer 1.Basic function of system Upon energization or availably operating the unit or remote controller, the buzzer will give out a beep. (1)Cooling mode (2) Auto button (1) Under this mode, fan and swing operates at setting status.
  • Page 30 fan mode Tpreset=25℃ . 1. When user set the remote controller to display set temperature (corresponding remote control code: 01), current set temperature ◆ F o r c o o l i n g a n d h e a t i n g u n i t u n d e r c o n d i t i o n t h a t will be displayed.
  • Page 31 ③ When Tpreset-2℃＜ Tindoor ambient temperature ＜ Tpreset, determined according to the value sent by IDU to ODU; If unit operates according to the previous status. IDU does not control the compensation temperature, then Tcompensation will default to 3℃ by the ODU. Under cooling mode, 4-way valve is not energized.

  • Page 32: Part Ii : Installation And Maintenance

    7. Notes for Installation and Maintenance 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. 12.
  • Page 33 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.
  • Page 34 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.
  • Page 35 a. Shut down the unit and cut power supply manner to avoid possibility of sparking; b. Eliminate the refrigerant – that no live electrical components and wiring are exposed c. Vacuuming while charging, recovering or purging the system; – that there is continuity of earth bonding. d.
  • Page 36 of some types of leak detection equipment. Intrinsically safe valves on the equipment are closed off. components do not have to be isolated prior to working on k) Recovered refrigerant shall not be charged into another refrigeration system unless it has been cleaned and checked. them.
  • Page 37 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 Soldering appliance...

  • Page 38: Installation

    8. Installation 8.1 Installation Dimension Diagram 48K(XH) Away from wall (30cm at least for piping side) Away from obstacles Away from wall (30cm at least for piping side) Away from back side Drainage pipe...
  • Page 39 48K(XK) Away from wall (30cm at least for piping side) Away from obstacles Away from wall (30cm at least for piping side) Away from back side Drainage pipe...
  • Page 40 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...

  • Page 41: Installation Parts-Checking

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

  • Page 42: Installation Of Indoor Unit

    8.5 Installation of Indoor Unit screw 1. Choosing Installation Iocation Recommend the installation location to the client and then Pipe Pipe joint Union nut confirm it with the client. air-inlet panel 2. Open piping hole (1) Choose the position of piping hole according to the direction Fig.4 Fig.5 of outlet pipe.

  • Page 43: Installation Of Outdoor Unit

    drain hose connection pipe band power cable-cross connection hole wire Fig.11 indoor power cord (2) Remove the wire clip; connect the power connection wire to Fig.14 the wiring terminal according to the color; tighten the screw and then fix the power supply wire,power connection wire with wire Note: clip.(As show in Fig.12) (1) The power cord and control wire can't be crossed or...
  • Page 44 (1) Remove the wire clip; connect the power connection wire to the wiring terminal according to the color; fix them with screws. (As show in Fig.21) 48K(XK) N(1) Drain vent Chassis yellow- blue black brown yellow- brown violet blue Drain hose green green Outdoor drain joint...

  • Page 45: Vacuum Pumping And Leak Detection

    8.8 Check after Installation and Test The drain hose can't be fluctuant Operation 1. Check after Installation Check according to the following requirement after finishing installation. The drain The water hose can't outlet can't be fluctuant Items to be checked Possible malfunction The water outlet be placed...

  • Page 46: Maintenance

    9. Maintenance 9.1 Error Code List Error Malfunction name AC status Possible causes code 1. Jumper cap is not installed in control panel; 2. Poor contact of jumper cap; Malfunction of jumper cap The complete unit stops operation 3. Jumper cap is damaged; 4.
  • Page 47 Error Malfunction name AC status Possible causes code 1. Temperature sensor is not well connected or damaged; Liquid valve temperature 2. The wire of temperature sensor is damaged, causing short sensor is ON / short- circuit to copper pipe or outer casing; circuited 3.
  • Page 48 Error Malfunction name AC status Possible causes code Cool/Dry: compressor and outdoor 1. Temperature sensor is not connected well or damaged; Outdoor condenser fan stop operation, while indoor fan 2. Temperature sensor wire of outdoor unit is damaged; short temperature sensor is operates;...
  • Page 49 Error Malfunction name AC status Possible causes code 1. Outdoor ambient temperature exceeds the operation range Cool: compressor and outdoor of unit (eg: less than-20 C or more than 60 C for cooling; more fan stops operation, while indoor than 30 C for heating);...
  • Page 50 Error Malfunction name AC status Possible causes code Cool/Dry: compressor stops DC bus voltage drop operation, while indoor fan The power voltage is unstable. malfunction operates; Heat: all loads stops operation. Cool: compressor and outdoor fan stops operation, while indoor 1.

  • Page 51: Procedure Of Troubleshooting

    9.2 Procedure of Troubleshooting 1. Troubleshooting for jumper cap Main check points: (1) jumper cap (2) control board of indoor unit Display shows “C5” Check whether the main Insert the equipped board of controller is inserted with jumper cap jumper cap. Eliminate malfunction Check whether the...
  • Page 52 2. Communication malfunction Main check points: (1) Connection wire between indoor unit and outdoor unit (2) Wiring inside the unit (3) Communication circuit of control board of indoor unit (4) Communication circuit of control board of outdoor unit Start Check whether the unit has operated normally before the malfunction occurs.
  • Page 53 3. IPM protection , over-phase current of compressor Main check points: (1) compressor COMP terminal (2) power supply voltage (3) compressor (4) charging amount of refrigerant (5) air inlet and air outlet of indoor/outdoor unit NOTE:The control board as below means the control board of outdoor unit. Put through the power and turn on the unit...
  • Page 54 4. Overload protection of compressor , high discharge temperature, protection of compressor Main check points: (1) electronic expansion valve (2) expansion valve terminal (3) charging amount of refrigerant (4) overload protector NOTE:The control board as below means the control board of outdoor unit. After the unit has been cut off the power for more than 20mins...
  • Page 55 5.Troubleshooting for temperature sensor , , , , Main check points: (1) connection terminal (2) temperature sensor (3) main board Start Check whether the connection terminal between the temperature sensor and the control board is loose or not connected well. Insert the temperature sensor well Eliminate...
  • Page 56 6.High temperature prevention protection ; high power ; system is abnormal Main check points: (1) outdoor temperature (2) fan (3)air inlet and air outlet of indoor/outdoor unit NOTE:The control board as below means the control board of outdoor unit. Overload protection, high temperature prevention protection Normal protection.
  • Page 57 7.Desynchronization diagnosis for compressor Main check point: (1) system pressure (2) power supply voltage NOTE:The control board as below means the control board of outdoor unit. Desynchronization occurs Desynchronization occurs during operation after turning on the unit Check whether the fan Replace the fan Does the outdoor fan operate terminal OFAN is...
  • Page 58 8.Malfunction diagnosis for failure startup Main check points: (1) compressor wire (2) compressor (3) charging amount of refrigerant NOTE:The control board as below means the control board of outdoor unit. Put through the power and turn on the unit The time for stop operation is not enough and the system's high pressure and low pressure is Check whether the compressor unbalanced.
  • Page 59 9. Charging malfunction of capacitor Main check points: (1) wiring board XT (2) reactor NOTE:The control board as below means the control board of outdoor unit. Put through the power to turn on the unit and then wait for 1min Measure the voltage at both ends of electrolytic capacitor with DC voltmeter.
  • Page 60 10. Troubleshooting-motor(indoor fan) doesn't operate Main check points: (1) connection terminal (2) motor (3) control board AP1 of indoor unit (4) blade 10.1 DC motor Display shows "H6" Pull the blade with hand under de-energization status Check whether the Adjust the motor and the blade blade operates smoothly to make the motor operate smoothly.
  • Page 61 10.2 PG motor Display shows "H6" Pull the blade with hand under de- energization status Adjust the motor and Check whether the blade to make the the blade operates blade operate smoothly smoothly. Eliminate malfunction Check whether Insert the feedback the feedback terminal of terminal again indoor fan's motor...
  • Page 62 11. AC overcurrent protection Start The normal fluctuation is about 10% of rated Eliminate malfunction The power voltage is unstable. voltage on the nameplate. The power voltage is too low and the Adjust the power voltage to make it normal. Eliminate malfunction load is too high.

  • Page 63: Troubleshooting For Normal Malfunction

    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 isn't bright wait for power recovery.
  • Page 64 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 65: Exploded View And Parts List

    10. Exploded View and Parts List 10.1 Indoor Unit GVH48ALXH-K6DNC7A/I 36 35 The component picture is only for reference; please refer to the actual product.
  • Page 66 Description Description Right Side Plate Sub-Assy Terminal Board Rear Plate Sub-Assy Motor Cover Right Air Guard Stepping Motor Top Cover Sub-Assy Air Guide Bushing Left Air Guard Guide Blade Lever Left Side Plate Sub-Assy Stepping Motor Evaporator Assy Crank 1 Air Guard Assy Air Louver 1 Chassis...

  • Page 67: Outdoor Unit

    10.2 Outdoor Unit GVH48ALXK-M6DNC7A/I On/Off Wifi Health 36 35 UD-swing Power LR-swing Timer Sleep Light The component picture is only for reference; please refer to the actual product.
  • Page 68 Description Description Right Side Plate Sub-Assy Terminal Board Rear Plate Sub-Assy Motor Cover Right Air Guard SteppingMotor Top Cover Sub-Assy Air Guide Bushing Left Air Guard Guide Blade Lever Left Side Plate Sub-Assy SteppingMotor Evaporator Assy Crank 1 Air Guard Assy Air Louver 1 Chassis Air Louver 2...
  • Page 69 GVH48ALXH-K6DNC7A/O The component is only for rererence;please refer to the actual product...
  • Page 70 Description Description Front Grill Union Nut Cabinet Union Nut Axial Flow Fan Handle Brushless DC Motor Supporter Chassis Sub-assy Valve Support Block Drainage hole Cap Rear Grill Drainage Joint Electronic Expansion Valve assy Cushioned Nut Temperature Sensor Clap Board Assy Condenser Assy Compressor and Fittings Electric Box Cover...
  • Page 71 GVH48ALXK-M6DNC7A/O The component is only for rererence;please refer to the actual product...
  • Page 72 Description Description Top cover Strainer Left Side Plate Strainer Handle Right Side Plate Reactor Handle Brushless DC Motor Electric Box Assy Chassis Sub-assy Main Board Axial Flow Fan Terminal Board Cabinet Terminal Board Front Grill Filter Board Pressure Protect Switch 4-way Valve Gas-liquid Separator Pressure Protect Switch...

  • Page 73: Removal Procedure

    11. Removal Procedure 11.1 Removal Procedure of Indoor Unit Caution: discharge the refrigerant completely before removal. 48K(XH) Step Procedure 1. Before disassemble 2. Remove filter sub-assy Filter sub-assy Air-in panel (1) Open the screw cover, use the screwdriver to remove 2 screws at both sides of air-in panel and then pull the air-in panel to remove it;...
  • Page 74 Step Procedure Screws Air-outlet panel 4. Remove air-outlet panel Remove 3 screws at the top part of the air-out panel, 2 screw at the lower part and screws under the screw cover, push the air-output panel upwards slightly and then remove the air-output panel. 5.
  • Page 75 Step Procedure 7. Remove evaporator Evaporator Remove 3 screws on the evaporator, 2 screw at the middle part and 2 screws at the lower part. Pull left and right side plates outwards slightly and then take out the evaporator, baffle board and water tray. When the evaporator is removed, the left and the right Water tray air damper and the baffle board of the evaporator can...
  • Page 76 Step Procedure 10. Remove chassis A f t e r 9 s c r e w s a r e r e m o v e d , p u l l t h e c h a s s i s downwards to remove it.
  • Page 77 48K(XK) Step Procedure 1. Before disassemble 2. Remove filter sub-assy Filter sub-assy Air-in panel (1) Open the screw cover, use the screwdriver to remove 2 screws at both sides of air-in panel and then pull the air-in panel to remove it; (2) Draw out the filter sub-assy.
  • Page 78 Step Procedure Screws Air-outlet panel 4. Remove air-outlet panel Remove 3 screws at the top part of the air-out panel, 2 screw at the lower part and screws under the screw cover, push the air-output panel upwards slightly and then remove the air-output panel. 5.
  • Page 79 Step Procedure 7. Remove evaporator Evaporator Remove 3 screws on the evaporator, 2 screw at the middle part and 2 screws at the lower part. Pull left and right side plates outwards slightly and then take out the evaporator, baffle board and water tray. When the evaporator is removed, the left and the right Water tray air damper and the baffle board of the evaporator can...
  • Page 80 Step Procedure 10. Remove chassis A f t e r 9 s c r e w s a r e r e m o v e d , p u l l t h e c h a s s i s downwards to remove it.

  • Page 81: Removal Procedure Of Outdoor Unit

    11. Removal Procedure 11.2 Removal Procedure of Outdoor Unit Caution: discharge the refrigerant 48K(XH) completely before removal. Note:The appearance of front grill is for reference only. Step Procedure 1. Before disassembly 2. Remove top cover top cover Remove the screws fixing top cover and then remove the top cover.
  • Page 82 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 rear grill Remove the screws connecing the left side plate and right side plate and then remove rear grill.
  • Page 83 Step Procedure 7. Remove valve suppprt Remove the valve support bolck, remove the screws fixing valve support, remove the screws fixing the liquid valve supprt valve and gas valve then remove the valve support. Valve Support Block 8. Remove gas valve and liquid valve Unsolder the welding joint connecting the gas valve and the liquid valve, remove them.
  • Page 84 Step Procedure Electric Box Assy 10. Remove electric box assy Unplug the terminals, unscrew 1 screw that secures the electrical box assy, release the two snaps on the electrical box assy (in the clapboard and condenser angle), pull outwards, and remove the electrical box assy.
  • Page 85 Step Procedure 13. Remove motor Remove the screws fixing the motor and then remove the motor. motor 14. Remove motor support Remove the screws fixing the motor support and lift the motor support to remove it. motor support 15. Remove clapboard assy clapboard assy Remove the screws fixing the clapboard assy and then remove the clapboard assy.
  • Page 86 48K(XK) Step Procedure 1. Before disassembly 2. Remove big handle and valve cover Big handle Remove the screws fixing big handle, valve cover and Valve cover then remove them. 3. Remove top cover Top cover Remove the screws fixing top panel and then remove the top panel.
  • Page 87 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 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...
  • Page 88 Step Procedure 7. Remove motor support and motor Remove the screws fixing the motor support and lift the motor support to remove it. Remove the screws fixing the motor and then remove the motor. Motor Motor support 8. Remove electric box assy Electric box assy Remove the terminals, lift up and rotate the electrical box assy to the right so that the snaps on the clapboard...
  • Page 89 Step Procedure 10. Remove 4-way valve and electric expansion valve sub-Assy Unsolder the welding joints connecting the 4-way valve assy, remove the 4-way valve. 4-way valve Unsolder the spot weld of electric expansion valve sub- Assy and condenser, and then remove the electric expansion valve sub-Assy.

  • Page 90: Appendix

    Appendix: 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 91: Appendix 3: Pipe Expanding Method

    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 92: Appendix 4: List Of Resistance For Temperature Sensor

    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 14.36...
  • Page 93 JF00305022 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.

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