Gree VIR18HP230V1B Service Manual
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Gree VIR18HP230V1B Service Manual

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Change for Life
Service Manual
Models:
GWC18QD-D3DNA1D
VIR18HP230V1B
GWC24QE-D3DNA1D
VIR24HP230V1B
(Refrigerant
R410A)
:
GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI

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  • Page 1 Change for Life Service Manual Models: GWC18QD-D3DNA1D VIR18HP230V1B GWC24QE-D3DNA1D VIR24HP230V1B (Refrigerant R410A) GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI...

  • Page 2: Table Of Contents

    Service Manual Table of Contents Part : Technical Information ............... 1 1. Summary ........................1 ......................2 ......................2 ..................6 ............6 ........................7 ............. 7 3. Outline Dimension Diagram ................ 8 3.1 Indoor Unit........................8 ........................9 4. Refrigerant System Diagram ..............
  • Page 3 Service Manual 9. Maintenance ......................40 ..................40 9.2 Error Code List .......................41 ................44 .................58 10. Exploded View and Parts List ..............60 10.1 Indoor Unit........................60 .........................64 11. Removal Procedure ..................72 ................72 ................77 Appendix: ........................88 ............88 ..............88 Appendix 3: Pipe Expanding M ...................89 Appendix 4: List of R ............90 Table of contents...

  • Page 4: Part : Technical Information

    Service Manual Part : Technical Information 1. Summary Indoor Unit: GWC18QD-D3DNA1D/I VIR18HP230V1BH GWC24QE-D3DNA1D/I VIR24HP230V1BH Outdoor Unit: GWC18QD-D3DNA1D/O VIR18HP230V1BO GWC24QE-D3DNA1D/O VIR24HP230V1BO Remote Controller:...
  • Page 5 Service Manual VIR18HP230V1B Model GWC18QD-D3DNA1D(LC) CB419004600 CB419004700 Rated Voltage 208/230 208/230 Cooling Capacity(Min~Max) 18000(7165~20001) 18000(7165~20001) Heating Capacity(Min~Max) 19800(7336~23498) 1500(570~2600) 1500(570~2600) 1730(580~2600) 8.65 8.65 7.52 2600 2600 11.54 11.54 559/488/412/335 559/488/412/335 3.80 3.80 12.00 12.00 11.45 SEER Application Area 27.51-40.66 27.51-40.66...
  • Page 6 Service Manual VIR18HP230V1BO GWC18QD-D3DNA1D/O(LCLH) CB419W04600 CB419W04700 ZHUHAI LANDA COMPRESSOR ZHUHAI LANDA COMPRESSOR CO.,LTD CO.,LTD Compressor Model Compressor Oil RB68EP RB68EP Compressor Type Rotary Rotary Compressor RLA 7.20 7.20 1440 1440 1NT11L-6233 or KSD115 1NT11L-6233 or KSD115 C or or HPC115/95U1 HPC115/95U1 Operation temp 60.8~86...
  • Page 7 Service Manual VIR24HP230V1B Model GWC24QE-D3DNA1D(LC) CB419003500 CB419003600 Rated Voltage 208/230 208/230 Cooling Capacity(Min~Max) 22000(6824~27296) 22000(6824~27296) Heating Capacity(Min~Max) 23000(6824~30708) 1830(450~3000) 1830(450~3000) 2000(450~3000) 8.05 8.05 8.35 3000 3000 14.49 14.49 706/647/589/530 706/647/589/530 4.23 4.23 12.02 12.02 11.50 SEER Application Area 32.29-50.23 32.29-50.23 VIR24HP230V1BH GWC24QE-D3DNA1D/I(LC) CB419N03500...
  • Page 8 Service Manual VIR24HP230V1BO GWC24QE-D3DNA1D/O(LC) CB419W03500 CB419W03600 ZHUHAI LANDA COMPRESSOR ZHUHAI LANDA COMPRESSOR CO,LTD. CO,LTD. Compressor Model Compressor Oil RB68EP RB68EP Compressor Type Rotary Rotary Compressor RLA 11.50 11.50 2550 2550 1NT11L-6233/HPC 1NT11L-6233/HPC 115/95 / 115/95 /KSD115 KSD115 Operation temp 60.8~86 60.8~86 Ambient temp (cooling) 0~115...
  • Page 9 Service Manual 2.2 Operation Characteristic Curve Cooling Heating Conditions Indoor:DB80°F/WB66.9°F Outdoor:DB95°F Indoor air flow:Super High Pipe length:24.6ft Conditions Indoor:DB70°F/WB60°F Outdoor:DB19.94°F/WB19.04°F Indoor air flow:Super High Pipe length:24.6ft 10 20 30 40 50 60 70 80 90 100 Compressor speed (rps) Compressor speed (rps) 2.3 Capacity Variation Ratio According to Temperature Cooling Heating...
  • Page 10 Service Manual 2.4 Noise Curve Indoor side noise Outdoor side noise Heating Cooling Compressor frequency(Hz) Indoor fan motor rating speed 2.5 Cooling and Heating Data Sheet in Rated Frequency Cooling: Rated cooling Compressor connecting indoor and Model (rps) Indoor P (MPa) in:46.4~51.8 in:167~181.4 80/66.9...

  • Page 11: Outline Dimension Diagram

    Service Manual 3. Outline Dimension Diagram 3.1 Indoor Unit 7 1/5 Φ2 1/6 Φ2 1/6 1 1/2 1 1/2 7 1/2 5 1/2 8 1/9 7 1/3 Φ2 3/4 Φ2 3/4 1 2/3 1 2/3 3 1/9 Models 38 1/5 11 4/5 8 5/6 42 4/9...
  • Page 12 Service Manual 3.2 Outdoor Unit 13 2/5 15 3/5 36 2/9 14 4/7 39 3/8 16 4/5...

  • Page 13: Refrigerant System Diagram

    Service Manual 4. Refrigerant System Diagram 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 HEATING...

  • Page 14: Electrical Part

    Service Manual 5. Electrical Part 5.1 Wiring Diagram Symbol Symbol Color Symbol Symbol Color Symbol Name Green Yellow Brown COMP Compressor YEGN Yellow/Green Violet Orange...
  • Page 15 Service Manual VIR18HP230V1BO...
  • Page 16 Service Manual VIR24HP230V1BO...

  • Page 17: Pcb Printed Diagram

    Service Manual 5.2 PCB Printed Diagram Indoor Unit Top view 2 DC fan 3 Up&down swing 5 Interface of wired controller 6 Interface of wired controller 7 Display interface 9 Relay 10 Relay 12 Piezoresistance 16 Relay Bottom view...
  • Page 18 Service Manual Outdoor Unit VIR18HP230V1BO GWC18QD-D3DNA1D/O Top view Terminal of compressor wire copper pipe Terminal of compressor Terminal of electronic wire Bottom view...
  • Page 19 Service Manual VIR24HP230V1BO GWC24QE-D3DNA1D/O Top view 1 Compressorinter face protector 11 Reactor interface 2 12 Reactor interface 1 Bottom view...

  • Page 20: Function And Control

    Service Manual 6. Function and Control 6.1 Remote Controller Introduction Buttons on Remote Controller Introduction for icons on display screen Set fan speed I feel Send signal Operation mode Cool mode Dry mode Set time Heat mode Sleep mode Up & down swing Temp.
  • Page 21 Service Manual 1. ON/OFF button 2. MODE button AUTO COOL HEAT Note: 3. FAN button Auto Caution: 4. SWING button no display Note: 5. TURBO button button...
  • Page 22 Service Manual 1. ON/OFF button 2. MODE button AUTO COOL HEAT Note: 3. FAN button Auto Caution: 4. SWING button no display Note: 5. TURBO button button...
  • Page 23 Service Manual 7. SLEEP button 8. TEMP button no display r no di Note: 9. I FEEL button 10. LIGHT button 11. CLOCK button Note: 12. TIMER ON / TIMER OFF button Note:...
  • Page 24 Service Manual Function introduction for combination buttons 1. Energy-saving function Note: 2. 8 heating function at 8 Note: TURBO 3. Child lock function 4. Temperature display switchover function Operation guide Replacement of batteries in remote controller signal sender battery reinstall are correct.
  • Page 25 Service Manual 6.2 Brief Description of Modes and Functions 1.Basic function of system (1)Cooling mode (2)Drying mode (3)Heating mode (4)Working method for AUTO mode: (5)Fan mode 2. Other control (1) Buzzer (2) Auto button (3) Auto fan (4) Sleep (5) Timer function: (6) Memory function (7) Health function...
  • Page 26 Service Manual (8)I feel control mode (9)Compulsory defrosting function (10)Refrigerant recovery function: (11)Ambient temperature display control mode displayed. (12)Off-peak energization function: (13) SE control mode (14) X-fan mode (15) 8º heating function (16) Turbo fan control function...
  • Page 27 Service Manual Outdoor Units 1. Input Parameter Compensation and Calibration (1) Check the ambient temperature compensation function Indoor ambient temperature compensation function. – compensation – compensation (2) Check effective judgment controls of parameters mode 40Hz, and T 2. Basic Functions (1) Cooling Mode 1.
  • Page 28 Service Manual 3. Special Functions Defrosting Control Conditions for starting defrosting 4. Control Logic (1) Compressor Control delay). 1. Cooling mode 2. Dehumidifying mode 3. Air-supplying mode 4. Heating mode (2) Defrosting: (2) Outer Fans Control Notes: (3) 4-way valve control compressor.
  • Page 29 Service Manual 1. Starting estimation: inner pipe 2. Frequency limited compressor. 3. Reducing frequency at normal speed: 4. Reducing frequency at high speed: inner pipe 5. Power turn-off: inner pipe <T inner pipe mode transferring will not clear it). (5) Overload protection function 1.
  • Page 30 Service Manual 1. Frequency limited inner pipe compressor. 2. Reducing frequency at normal speed and stopping machine: inner pipe 3. Reducing frequency at high speed and power turn-off: inner pipe 4. Power turn-off: inner pipe 1. Starting estimation: <T 2. Frequency limited compressor.
  • Page 31 Service Manual (6)Voltage sag protection (7)Communication fault (8)Module protection (9)Module overheating protection 1. Starting estimation: 2. Frequency limited 3. Reducing frequency at normal speed and power turn-off: 4. Reducing frequency at high speed and power turn-off: 5. Power turn-off: transferring also will not clear it). (10)Compressor overloads protection (11)Phase current overcurrent protection of compressor steps:...
  • Page 32 Service Manual (12) Starting-up Failure Protection for Compressor (13) Out-of-Step Protection for Compressor (14) Voltage Abnormity Protection for DC Bus 1.Over-High Voltage Protection for DC Bus: 2.Over-Low Voltage Protection for DC Bus: 3.To detect voltage abnormity protect for DC bus when getting electricity: (15)Abnormity Protection for Four-way Valve <(T Inner Ring...
  • Page 33 Service Manual...

  • Page 34: Part : Installation And Maintenance

    Service Manual Part : Installation and Maintenance 7. Notes for Installation and Maintenance Safety Precautions: 10. If the power cord or connection wire is not long enough, please get the specialized power cord or connection wire Important! from the manufacture or distributor. Prohibit prolong the wire by yourself.
  • Page 35 Service Manual Main Tools for Installation and Maintenance 1. Level meter, measuring tape 2. Screw driver 3. Impact drill, drill head, electric drill 4. Electroprobe 5. Universal meter 6. Torque wrench, open-end wrench, inner hexagon spanner 7. Electronic leakage detector 8.

  • Page 36: Installation

    Service Manual 8. Installation 8.1 Installation Dimension Diagram Space to the wall Space to the wall At least 5 8/9 inch At least 5 8/9 inch Drainage pipe Installation and Maintenance...
  • Page 37 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 38: Selection Of Installation Location

    Service Manual 8.2 Installation Parts-checking 8.4 Electric Connection Requirement Name Name 1. Safety Precaution Wrapping tape Connection pipe Drainage pipe frame Connecting cable(power cord) remote controller conditioner. Wall pipe Note: Air-conditioner 25 A 8.3 Selection of Installation Location 1. Basic Requirement: 2.
  • Page 39 Service Manual 5. Connect the Pipe of Indoor Unit 3. Install Wall-mounting Frame Wall Wall Mark in the middle of it Level meter Space Space to the to the Open-end wall wall wrench above above 6inch 6inch Union nut Pipe Pipe joint Union nut Right...
  • Page 40 Service Manual 7. Connect Wire of Indoor Unit 8. Bind up Pipe Screw Panel Wiring cover Indoor and outdoor power cord Indoor unit pipe Liquid pipe Band Drain hose Drain hose Connection pipe Band connection wire sleeve Indoor power cord Note: winding.
  • Page 41 Service Manual 8.6 Installation of Outdoor Unit 1. Fix the Support of Outdoor Unit(Select it according to ·Ibf) the actual installation situation) 11.10~14.75 22.82~29.50 33.19~40.56 44.24~47.94 expansion screws. 51.32~55.31 Note: 5. Connect Outdoor Electric Wire N(1) Handle screws are needed. N(1) intdoor unit connection Drain vent...
  • Page 42 Service Manual 8.8 Check after Installation and Test Operation 1. Check after Installation installation. The drain hose can't be fluctuant The water outlet emit noise. can't be placed The drain hose in water can't be fluctuant The water outlet can't be fluctuant water dripping.

  • Page 43: Maintenance

    Service Manual 9. Maintenance 9.1 Precautions before Maintenance pacitor after power off. discharge resistance or plug of soldering iron nance safely. Installation and Maintenance...

  • Page 44: Error Code List

    Service Manual 9.2 Error Code List 1.Power supply is abnormal Malfunction Off 3s of zero-cross The complete unit stops 2.Detection circuit of indoor and blink derection control mainboard is 17 times abnormal Installation and Maintenance...
  • Page 45 Service Manual Complete unit Off 3s current and blink detection 13 times malfunction Off 3s Defrosting will occur in and blink heating mode.Compressor once will operate while indoor It’s the normal state (during fan will stop. blinking, ON 10s and Off 05s) Installation and Maintenance...
  • Page 46 Service Manual Installation and Maintenance...
  • Page 47 Service Manual 9.3 Troubleshooting for Main Malfunction 1. Malfunction of Temperature Sensor F1, F2 Troubleshooting for F1,F2 malfunction the wiring terminal between the temperature sensor and the controller loosened or poorly contacted? Insert the temperature sensor tightly Is malfunction eliminated Is there short circuit due to trip - over of the parts? Make the parts upright...
  • Page 48 Service Manual 2. Malfunction of Blocked Protection of IDU Fan Motor H6 Start Turn the fan blades by hand under power-off condition Adjust the motor and blade Whether the fan blades assembly so that rotor can run can run smoothly? smoothly.
  • Page 49 Service Manual 3. Malfunction of Protection of Jumper Cap C5 Troubleshooting for C5 malfunction Appearance of Is there jumper cap on the the jumper cap mainboard ? Assemble the jumper cap with the same model Is malfunction eliminated the jumper cap inserted correctly and tightly ? Insert the...
  • Page 50 Service Manual 4. Communication malfunction E6 Start Cut off power supply. Check if connection line of IDU and ODU and the wire inside electric box are correctly connected. Connect the line Correct connection? according to Malfunction eliminated? wiring diagram. Main board matches Match correctly with display board? Main board of Malfunction eliminated?
  • Page 51 Service Manual 1.Key detection point Test9 Test3 Test4 Test2 Test1 Test5 Test8 Tset7 Test6 Test10 Test11 Test12 Test NO Test point Corresponding component condition Test 1 Between A and C 160V~265V Test 2 Between B and C 160V~265V Test 3 Between D and E DC 180V~380V Test 4...
  • Page 52 Service Manual 2.Capacity charging malfunction (outdoor unit malfunction) (AP1 below is control board of outdoor unit) Main detection point: Turn on the unit and wait 1 minute Use DC voltmeter to measure the voltage on the two ends of electrolytic capacitor Fault with the voltage Replace the control...
  • Page 53 Service Manual 3.IPM protection, desynchronizing malfunction, phase current of compressor is overcurrent (AP1 below is control board of outdoor unit) Main detection point: Installation and Maintenance...
  • Page 54 Service Manual Energize and switch on Use AC voltmeter If the voltage Check the supply to measure the IPM protection between terminal L voltage and voltage between occurs after the and N on wiring machine has run for terminal L and N restore it to board XT is within a period of time?
  • Page 55 Service Manual 4.Diagnosis for anti-high temperature, overload protection (AP1 below is control board of outdoor unit) Main detection point: Anti-high temperature, overload protection Normal protection, please use If the outdoor ambient temperature is it after improve the outdoor higher than 127.4 °F? ambient temperature After the unit de- energized for 20min...
  • Page 56 Service Manual 5.Diagnosis for failure start up malfunction (AP1 below is control board of outdoor unit) Main detection point: Energize the unit and start it If the stop time is not enough and the If the stop time of compressor high and low pressure of system is not is more than 3min? balance , please start it after 3min...
  • Page 57 Service Manual 6. Diagnosis for compressor synchronism (AP1 below is control board of outdoor unit) Main detection point: Synchronism Synchronism after energize the unit occurred during and start it operation Check if the fan Replace fan If the stop time of If the outdoor fan works terminal OFAN is capacitor C1...
  • Page 58 Service Manual 7.Diagnosis for overload and discharge malfunction (AP1 below is control board of outdoor unit) Main detection point: After the unit de-energized for 20min If the overload protector SAT is well connected? Under ambient temperature, test the resistance of overload protector with ohmic Connect wire If the wiring terminal FA of electron well with wiring...
  • Page 59 Service Manual 8.Communication malfunction (AP1 below is control board of outdoor unit) Main detection point: aged Start If the unit is operation normal before malfunction Check connection wire of indoor and outdoor unit with circuit diagram Check built- in wiring of Connection indoor and correct?
  • Page 60 Service Manual 9.Diagnosis process for outdoor communication circuit Start Test voltage value with Test 10 position in diagram with voltage meter Number jumping Test voltage value with Test 13 position in diagram with voltage meter Number jumping Outdoor unit Test voltage malfunction value with Test 11 position in...
  • Page 61 Service Manual 9.4 Troubleshooting for Normal Malfunction 1. Air conditioner can't be started up connected well. Wrong wire connection between or poor connection for wiring terminals reliably correctly once improper Replace batteries for remote controller Repair or replace remote controller 2.
  • Page 62 Service Manual 4. ODU fan motor can't operate Connect wires according to wiring diagram to Wrong wire connection, or poor connection diagram damaged fan capacitor. is bad and ODU compressor generates a lot of 5. Compressor can't operate Connect wires according to wiring diagram to Wrong wire connection, or poor connection diagram...

  • Page 63: Exploded View And Parts List

    Service Manual 10. Exploded View and Parts List 10.1 Indoor Unit 18K Unit Installation and Maintenance...
  • Page 64 Service Manual Part Code Description VIR18HP230V1BH GWC18QD-D3DNA1D/I CB419N04600 CB419N04700 20192613 20192613 20022481S 20022481S Display Board 30565233 30565233 11122089 11122089 20192612 20192612 20022484 20022484 10512734 10512734 10542036 10542036 10512732 10512732 26112512 26112512 10512037 10512037 Rear Case assy 22202571 22202571 76712012 76712012 7651205102 7651205102 Ring of Bearing...
  • Page 65 Service Manual 24K Unit Installation and Maintenance...
  • Page 66 Service Manual Part Code Description VIR24HP230V1BH GWC24QE-D3DNA1D/I CB419N03500 CB419N03600 20022491 20022491 11012007 11012007 24252453 24252453 20022487 20022487 10512737 10512737 26112513 26112513 10512037 10512037 Rear Case assy 22202570 22202570 76712012 76712012 Ring of Bearing 26152025 26152025 76512203 76512203 10352057 10352057 24212178 24212178 01100100029 01100100029...
  • Page 67 Service Manual 10.2 Outdoor Unit INTENTIONALLY BLANK Installation and Maintenance...
  • Page 68 Service Manual INTENTIONALLY BLANK Installation and Maintenance...
  • Page 69 Service Manual VIR18HP230V1BO Installation and Maintenance...
  • Page 70 Service Manual Part Code Description VIR18HP230V1BO CB419W04700 1501506402 Terminal Board 42010255 Electric Box 20113027 Radiator 49010252 Main Board 30138000517 20123028 Electric Box Assy 10000100186 Left Handle 26233053 Left Side Plate 01305093P 0170512001 01173415 Coping 01255005P Reactor 43130025 Clapboard Assy 0123315301 Condenser Assy 0111360901 Rear Grill...
  • Page 71 Service Manual INTENTIONALLY BLANK Installation and Maintenance...
  • Page 72 Service Manual INTENTIONALLY BLANK Installation and Maintenance...
  • Page 73 Service Manual VIR24HP230V1BO Installation and Maintenance...
  • Page 74 Service Manual Part Code Description VIR24HP230V1BO CB419W03600 01473050 1501403402 01413426 Radiator 49015215 Main Board 30138000504 Electric Box Assy 10000100164 Wire Clamp 71010003/71010102 Terminal Board 42010255 Left Handle 26235401 Left Side Plate 01305043P Coping 01255006P 01705025 01175092 01235040 Condenser Assy 01100200162 Rear Grill 01475013 Wiring Clamp...

  • Page 75: Removal Procedure

    Service Manual 11. Removal Procedure Warning: Be sure to wait for a minimum of 20 minutes after turning off all power supplies and discharge the refrigerant 11.1 Removal Procedure of Indoor Unit completely before removal. 1. Remove filter as s y F ront panel Open the front panel.
  • Page 76 Service Manual 11. Removal Procedure Warning: Be sure to wait for a minimum of 20 minutes after turning off all power supplies and discharge the refrigerant 11.1 Removal Procedure of Indoor Unit completely before removal. 1. Remove filter as s y F ront panel Open the front panel.
  • Page 77 Service Manual Loosen the connection clasps between front case sub-assy and bottom case. Lift up the front case sub-assy and take it out. S wing motor Screw off the screws that are locking the swing motor and take the motor off. Installation and Maintenance...
  • Page 78 Service Manual Indoor tube temperature s ensor Cut off the wire binder and pull out the indoor tube temperature sensor. Screw off one grounding screw. Main Remove the wiring terminals of motor and board stepping motor. Remove the electric box assy. G rounding Screw off the screws that are locking each Wi ring...
  • Page 79 Service Manual G roove R ear case ass y First remove the left side of evaporator from the groove on the rear case assy. Then remove the right side from the clasp on the C lasp rear case assy. Installation and Maintenance...
  • Page 80 Service Manual Installation and Maintenance...
  • Page 81 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. Steps Procedure 1. Remove big handle,valve cover and top cover big handle Remove the screw connecting the big handle and right side plate, and then remove the big handle.
  • Page 82 Service Manual Steps Procedure Remove the screws connecting the outer case with motor support, isolation plate and chassis; lift the outer case upwards; loosen the clasps of outer case with right side plate and left side plate, and then remove the outer case. outer case 3.
  • Page 83 Service Manual Steps Procedure 4. Remove axial flow blade Remove the nut fixing axial flow blade and then remove the blade. axial flow fan motor support Remove the 6 screws fixing the motor and then remove the motor. Remove the 2 screws connecting the motor support and chassis, and then loosen the stopper to remove the motor support.
  • Page 84 Service Manual Steps Procedure 6. Remove the soundproof sponge Tear off the sticking stripe and then remove the soundproof sponge. soundproof sponge 7. Remove isolation plate Remove the 2 screws connecting the isolation plate and condenser side plate; remove the 3 screws connecting the isolation plate and chassis, and then remove the isolation plate.
  • Page 85 Service Manual Steps Procedure 9. Remove compressor compressor Remove the 3 foot nuts fixing compressor and then lift the compressor upwards to remove the compressor and damping cushion. Note: Keep the ports of discharge pipe and suction pipe from foreign objects. condenser sub-assy 10.
  • Page 86 Service Manual Steps Procedure 1. Remove big handle,valve cover and top cover Remove the screw connecting the big handle and right side plate, and then remove the big handle. Remove the screw connecting the valve cover and right side plate, and then remove the valve cover. handle valve cover 2.Remove top panel...
  • Page 87 Service Manual Steps Procedure 4.Remove grille and panel Twist off the screws connecting the grille and panel, and then remove the grille. Twist off the screws connecting the panel, chassis and motor support with screwd-river, and then remove the panel. grille panel 5.Remove right side plate...
  • Page 88 Service Manual Steps Procedure 7.Remove electric box electric box Twist off the screws on electric box, cut off the tieline with scissors or pliers, pull out the wiring terminal, pull it upwards to remove the electric box. Twist off the screws on electric box (fireproofing) electric box with screwdriver, and then remove the electric (fireproofing)
  • Page 89 Service Manual Steps Procedure 9.Remove motor support Twist off the tapping screws fixingthe motor support, pull it upwardsand then remove the motor support. motor support 10.Remove isolation sheet Twist off the screws connecting isolation sheet and end plate of condenser and chassis, and then remove the isolation sheet.
  • Page 90 Service Manual Steps Procedure 12.Remove gas valve and liquid valve Twist off the 2 bolts fixing the valve sub-assy. Unsolder the soldering joint between gas valve and air-return pipe and then remove the gas valve.(note: when unsoldering the soldering joint, wrap the gas valve with wet cloth completely to gas valve avoid the damage to valve, and release all...
  • Page 91 Service Manual Steps Procedure 15.Remove left side plate Twist off the screws connecting the left side plate and chassis with screwdriver, and then remove the left side plate. left side plate 16.Remove chassis and condenser Pull it upwards to separate the chassis and condenser.

  • Page 92: Appendix

    Service Manual Appendix: Appendix 1: Reference Sheet of Celsius and Fahrenheit Conversion formula for Fahrenheit degree and Celsius degree: Tf=Tcx1.8+32 Set temperature display display display 60.8 69/70 69.8 78/79 78.8 62/63 62.6 71/72 71.6 80/81 80.6 64/65 64.4 73/74 73.4 82/83 82.4 66/67...

  • Page 93: Appendix 3: Pipe Expanding M

    Service Manual Appendix 3: Pipe Expanding Method Pipe Note: Pipe cutter Improper pipe expanding is the main cause of refrigerant leakage.Please expand the pipe according to the following steps: Leaning Uneven Burr Pipe Shaper Downwards Union pipe Pipe Hard mold Note: Expander Pipe...

  • Page 94: Appendix 4: List Of R

    Service Manual Appendix 4: List of Resistance for Temperature Sensor Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor Units(15K) Temp.( Temp.( Temp.( Temp.( -2.2 138.1 18.75 138.2 3.848 208.4 1.071 -0.4 128.6 69.8 17.93 3.711 210.2 1.039 121.6 71.6 17.14 141.8...
  • Page 95 Service Manual Resistance Table of Tube Temperature Sensors for Indoor and Outdoor (20K) Temp.( Temp.( Temp.( Temp.( -2.2 181.4 25.01 138.2 5.13 208.4 1.427 -0.4 171.4 69.8 23.9 4.948 210.2 1.386 162.1 71.6 22.85 141.8 4.773 1.346 153.3 73.4 21.85 143.6 4.605 213.8...
  • Page 96 Service Manual Resistance Table of Discharge Temperature Sensor for Outdoor(50K) Temp.( Temp.( Temp.( Temp.( -20.2 853.5 120.2 18.34 190.4 4.754 -18.4 799.8 51.8 93.42 17.65 192.2 4.609 -16.6 53.6 89.07 123.8 16.99 4.469 -14.8 703.8 55.4 84.95 125.6 16.36 195.8 4.334 660.8 57.2...
  • Page 97 GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI CAT NO: GREE_VIREO_B_18 & 24K_SERVICE_01212021 Email: gree@gree.com.cn Http://www.gree.com HONG KONG GREE ELECTRIC APPLIANCES SALES LIMITED...

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