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Gree GWH09AEC-K6DNA1A, Service Manual, Page: 13 / 85

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Gree GWH09AEC-K6DNA1A Service Manual Download Page 13

11

Technical Information

Service Manual

4. Refrigerant System Diagram

Connection pipe specification: 
Liquid pipe:1/4" (6mm)
Gas pipe:3/8" (9.52mm)

  Indoor unit     

  Outdoor unit   

COOLING 

HEATING 

4-Way valve 

Discharge

Suction

Heat 

exchanger

(evaporator)   

Heat 

exchanger

(condenser)   

 Valve

 Valve

Liquid pipe

side

Gas pipe

side

Strainer Electron 

expansion 

valve

Strainer

Capillary

Accumlator 

  Compressor   

Summary of Contents for GWH09AEC-K6DNA1A

Page 1: ...Service Manual Change for life GREE ELECTRIC APPLIANCES INC OF ZHUHAI Models GWH09AEC K6DNA1A GWH12AEC K6DNA1A Refrigerant R32...

Page 2: ...Diagram 12 5 2 PCB Printed Diagram 14 6 Function and Control 16 6 1 Remote Controller Introduction 16 6 2 GREE App Operation Manual 21 6 3 Ewpe Smart App Operation Manual 22 6 4 Brief Description of M...

Page 3: ...iew and Parts List 62 10 1 Indoor Unit 62 10 2 Outdoor Unit 64 11 Removal Procedure 67 11 1 Removal Procedure of Indoor Unit 67 11 2 Removal Procedure of Outdoor Unit 74 Appendix 78 Appendix 1 Referen...

Page 4: ...Remote Controller YAU1FB No Model Product code Indoor model Indoor product code Outdoor model Outdoor product code Remote Controller 1 GWH09AEC K6DNA1A CB370000300 GWH09AEC K6DNA1A I CB370N00300 GWH09...

Page 5: ...ow Cross flow Fan Diameter Length DXL mm 98X633 98X633 Cooling Speed r min 1300 1150 1050 950 800 600 550 500 1300 1150 1050 950 800 600 550 500 Heating Speed r min 1300 1150 1050 950 900 850 800 1300...

Page 6: ...2 1 4 2 1 4 Condenser Coil Length LXDXW mm 742X38 1X550 742X38 1X550 Fan Motor Speed rpm 900 900 Fan Motor Power Output W 30 30 Fan Motor RLA A 0 36 0 36 Fan Motor Capacitor F Outdoor Unit Air Flow Vo...

Page 7: ...er Length DXL mm 98X633 98X633 Cooling Speed r min 1350 1200 1100 1000 850 600 550 500 1350 1200 1100 1000 850 600 550 500 Heating Speed r min 1350 1200 1120 1050 950 800 750 1350 1200 1120 1050 950 8...

Page 8: ...mm 2 1 4 2 1 4 Condenser Coil Length LXDXW mm 734X38 1X550 742X38 1X550 Fan Motor Speed rpm 900 900 Fan Motor Power Output W 30 30 Fan Motor RLA A 0 36 0 36 Fan Motor Capacitor F Outdoor Unit Air Flow...

Page 9: ...110 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 Capacity ratio Condition Indoor DB27 WB19 Indoor air flow Turbo Pipe length 7 5m Outdoor temp C 0 20 40 60 80 100 120 Capacity ratio Outdoor temp C 7...

Page 10: ...0 7 2 5 43 15 5 7 19 31 Cooling Heating 2 4 Cooling and Heating Data Sheet in Rated Frequency Cooling Rated cooling condition C DB WB Model Pressure of gas pipe connecting indoor and outdoor unit Inle...

Page 11: ...Noise Curve 40 30 20 25 35 Indoor side noise when blowing Indoor fan motor rotating speed 45 Noice dB A SL L ML M MH H SS Heating Cooling 46 48 50 52 54 56 58 60 20 30 40 50 60 70 80 90 100 Compresso...

Page 12: ...10 Technical Information Service Manual 3 Outline Dimension Diagram 3 1 Indoor Unit 225 293 945 Unit mm 55 55 122 727 96 34 34 130 7 3 2 Outdoor Unit 257 257 780 596 848 286 540 320 320 Unit mm...

Page 13: ...ification Liquid pipe 1 4 6mm Gas pipe 3 8 9 52mm Indoor unit Outdoor unit COOLING HEATING 4 Way valve Discharge Suction Heat exchanger evaporator Heat exchanger condenser Valve Valve Liquid pipe side...

Page 14: ...nge Note Jumper cap is used to determine fan speed and the swing angle of horizontal lover for this model 60000706083401 11 7 1 5 3 60 1 5 725 2 237 21 237 21 5 02 8 237 21 7 7586 21 02725 5 7 7 67 33...

Page 15: ...3 0DLQ RDUG RWWRP DQG HDWHU 7 2 1 1 0 3 3 1 02725 3527 725 29 5 2 5 29 203 6 7 5 8 9 203 203 8 9 8 5 0 1 7 5 1 32 5 1 1 8 1 1 1 75 2 3 8 5 1 1 225 81 7 127 0RWRU DSSOLHV WR WKH LURQ VKHOO PRWRU JURXQG...

Page 16: ...e 2 Interface of communication wire 3 Firewire control output 4 Input terminal of live wire 5 Fuse 6 Jumper cap 7 Interface of DC motor 8 Interface of display 9 Interface of cold plasma 10 Interface o...

Page 17: ...wiring terminal 2 3 Reactor wiring terminal 1 4 Terminal of chassis electric heater 5 6 4 way valve terminal 7 Neutral wire Grounding wire 8 Communication wire 9 Live wire 10 Terminal of electronic e...

Page 18: ...e 8 heating function Set temperature Set time X FAN function TIMER ON TIMER OFF Child lock Clean Up down swing Left right swing Light Set temp Indoor ambient temp Sleep mode Clock Heat mode Fan mode D...

Page 19: ...er is blowing fan automatically Horizontal louver will automatically swing up down at maximum angle When selecting air conditoner is blowing fan at fixed position Horizontal louver will stop at the fi...

Page 20: ...button pressed the sleep curve setting within 10s there is no button pressed the sleep curve setting status will be automatically quit and resume to display the original displaying In the presetting...

Page 21: ...will cancel energy saving function If sleep function has been set under cooling mode start up the energy saving function will cancel sleep function 17 8o C Heating function Press TEMP and CLOCK simult...

Page 22: ...se to indoor unit during operation Replace new batteries of the same model when replacement is required When you don t use remote controller for a long time please take out the batteries If the displa...

Page 23: ...l 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 For more information please refer to Help in App...

Page 24: ...App is installed register the account and add the device to achieve long distance control and LAN control of smart home appliances For more information please refer to Help in App 6 3 Ewpe Smart App O...

Page 25: ...blink 5 times Antifreezing protection When the antifreezing protection is detected the compressor will stop the outdoor fan will stop after 30 seconds and the indoor fan and swing motor will keep run...

Page 26: ...ssor and the outer fan will be started the indoor fan will run under preset cold air prevention conditions and H1 will be displayed at temperature display area on the display panel Defrost frequency i...

Page 27: ...r module protection mode the compressor will stop When the compressor remains at stop for at least 3 minutes the compressor will resume its operation If module protection occurs six times in successio...

Page 28: ...25 24 25 26 26 26 26 26 25 25 25 26 27 27 27 27 27 26 26 26 27 28 28 28 28 28 27 27 27 28 29 29 29 29 29 28 28 28 29 29 29 29 29 29 28 28 29 30 30 30 30 30 30 29 29 30 30 30 30 30 30 30 29 29 2 In hea...

Page 29: ...e current operation mode the mode light in cludes Cooling heating and dehumidify If you close the light key all the display patterns will close Double 8 display According to the different setting of r...

Page 30: ...e unit adequately grounded The grounding wire cant be used for other purposes 6 Must apply protective accessories such as protective boards cable cross loop and wire clip 7 The live wire neutral wire...

Page 31: ...stalling the unit at the place where there may be leaked corrosive gas or flammable gas If there leaked gas around the unit it may cause explosion and other accidents 7 Do not use extension cords for...

Page 32: ...area The naked flame is prohibited in the maintenance area and the no smoking warning board should be hanged Check whether the appliance mark is in good condition Replace the vague or damaged warning...

Page 33: ...ng tape 4 Electroprobe 7 Electronic leakage detector 10 Pipe pliers pipe cutter 2 Screw driver 5 Universal meter 8 Vacuum pump 11 Pipe expander pipe bender 3 Impact drill drill head electric drill 6 T...

Page 34: ...struction Space to the obstruction Space to the obstruction At least 30cm At least 15cm At least 15cm Space to the wall Space to the wall Space to the wall Space to the wall At least 30cm At least 30c...

Page 35: ...or unit Make the bound pipes pass through the wall hole and then connect outdoor unit Neaten the pipes Vacuum pumping and leakage detection Check after installation and test operation Finish installat...

Page 36: ...t be properly grounding with specialized grounding device by a professional Please make sure it is always grounded effectively otherwise it may cause electric shock 2 The yellow green wire in air cond...

Page 37: ...5 Fig 6 Fig 7 3 Selection of drainage outlet and drainage installation and disassembly guide 1 Please determine the position of drainage outlet before installation the drainage pipe 2 Suggestion for...

Page 38: ...Pipe 1 Bind up the connection pipe power cord and drain hose with the band As show in Fig 14 2 Reserve a certain length of drain hose and power cord for installation when binding them When binding to...

Page 39: ...lation Situation 1 Select installation location according to the house structure 2 Fix the support of outdoor unit on the selected location with expansion screws Fig 18 Fig 19 gas pipe Liquid pipe Liq...

Page 40: ...Close The drain hose can t be fluctuant The drain hose can t be fluctuant The water outlet can t be fluctuant The water outlet can t be placed in water 4 Close the vacuum pump and maintain this status...

Page 41: ...fficient cooling heating capacity 3 Is heat insulation of pipeline sufficient It may cause condensation and water dripping 4 Is water drained well It may cause condensation and water dripping 5 Is the...

Page 42: ...rotection E5 During cooling and drying operation compressor and outdoor fan stop while indoor fan operates During heating operation all loads stop 1 Supply voltage is unstable 2 Supply voltage is too...

Page 43: ...nt temperature sensor is open short circuited F3 During cooling and drying operating compressor stops while indoor fan operates During heating operation the complete unit will stop operation Outdoor t...

Page 44: ...ltage is higher than 265VAC turn on the unit after the supply voltage is increased to the normal range 2 If the AC input is normal measure the voltage of electrolytic capacitor C on control panel AP1...

Page 45: ...e temperature sensor circuit P7 During cooling and drying operation compressor will stop while indoor fan will operate During heating operation the complete unit will stop Replace outdoor control pane...

Page 46: ...nction of mainboard rev detecting circuit 36 Desynchro nizing of compressor H7 During cooling and drying operation compressor will stop while indoor fan will operate During heating operation the compl...

Page 47: ...n on outdoor units control panel AP1 please replace the outdoor units control panel AP1 45 The four way valve is abnormal U7 If this malfunction occurs during heating operation the complete unit will...

Page 48: ...ce the mainboard with the same model End no no Is the temperature sensor normal according to the Resistance Table no Replace it with a temperature sensor with the same model no yes yes Is malfunction...

Page 49: ...indoor fan and main board is loose Turn unit on to check whether the malfunction is eliminated Turn unit on to check whether the malfunction is eliminated Reinsert the wiring terminal of indoor fan I...

Page 50: ...r cap with the same model no Is malfunction eliminated no yes Insert the jumper cap tightly Is malfunction eliminated no no yes Is malfunction eliminated no yes Replace the mainboard with the same mod...

Page 51: ...and outlet blocked Normal fluctuation is within 10 of the rated voltage on the nameplate Malfunction is eliminated no yes no yes no yes no no no yes no yes no yes yes yes yes yes yes yes Malfunction i...

Page 52: ...board matches with display board Main board of IDU matches with that of ODU Communication cord is damaged Replace IDU s main board Malfunction eliminated End Connect the line according to wiring diag...

Page 53: ...e unit returns to normal Conclusion U8 is displayed due to instant energization afte de energization while the capacitor discharges slowly The zero cross detection circuit of the mainboard is defined...

Page 54: ...of detecting plate WIFI JF Start Is malfunction eliminated The end check if the connection wire are correctly connected Replace the detecting plate with the same model Replace the mainboard with the s...

Page 55: ...200V Fault with the voltage testing circuit on control panel AP1 Replace the control panel AP1 Measure the AC voltage between terminalL andN on wiring board XT power supply Voltage within 210VAC 250V...

Page 56: ...resume to the range of 210VAC 250VAC Correctly connect the wires of compressor according to the electric wiring diagram and then turn on the unit Check the connection between the control board and the...

Page 57: ...gh temperature protection Is outdoor ambient temperature higher than 53 20 minutes after the complete unit is powered off Is heat dissipation of the indoor unit and outdoor unit abnormal Normal protec...

Page 58: ...for compressor stopping enough Fault diagnosis process Y N Y N N Y Y N Power on the unit Is stop time of the compressor longer than 3 minutes Restart it up after 3 minutes Does startup fail Are the w...

Page 59: ...wires for the compressor connected correctly Is connection sequence right Is the connection made in clockwise direction Connect the wires correctly Replace the control panel AP1 If the fault is elimin...

Page 60: ...cess 20 minutes after the complete unit is powered off Is the terminal FA for the electronic expansion valve connected correctly Connect the wires correctly Resistances between the first four pins clo...

Page 61: ...pment operate normally before the failure occurs The AP1 voltage detection circuit is at fault Check wiring inside of the indoor and outdoor units Are wires broken Check the communication circuit of t...

Page 62: ...hod for details Malfunction of compressor Compressor cant operate Refer to point 5 of maintenance method for details 9 3 Troubleshooting for Normal Malfunction 1 Air Conditioner Cant be Started Up 2 P...

Page 63: ...pipe Replace drain pipe Wrapping is not tight Water leaking from the pipe connection place of indoor unit Wrap it again and bundle it tightly 5 Compressor Cant Operate Possible causes Discriminating m...

Page 64: ...Manual 10 Exploded View and Parts List 10 1 Indoor Unit The component picture is only for reference please refer to the actual product 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25...

Page 65: ...0001060056 1 16 Decorative Board Left 23000506001301 23000506001301 1 17 Decorative ring Left 230004060002D01 230004060002D01 1 18 Left Side Plate 20008506000601 20008506000601 1 19 Left Driving Box S...

Page 66: ...tallation and Maintenance Service Manual 10 2 Outdoor Unit The component picture is only for reference please refer to the actual product 1 2 3 4 5 7 8 26 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 2...

Page 67: ...09012000027 009012000027 3 10 4 Way Valve Assy 030152060090 030152060090 1 11 Big Handle 2623343106 2623343106 1 12 Valve Cover 22243006 22243006 1 13 Cut off Valve Assy 07133691 07133691 1 14 Cut off...

Page 68: ...7 009012000027 3 10 4 Way Valve Assy 030152060090 030152060090 1 11 Big Handle 2623343106 2623343106 1 12 Valve Cover 22243006 22243006 1 13 Cut off Valve Assy 07133691 07133691 1 14 Cut off Valve Sub...

Page 69: ...the power Hold the handle on the filter pull it upwards to let the clasp at the top part of the filter loose push it forwards and then the filter can be pulled out 2 Remove horizontal louver Hold the...

Page 70: ...Hold the air guide louver press the cross clasp at the right side of air guide louver hold it to the left side and then remove the air guide louver 3 Remove air outlet frame Open the panel remove 5 sc...

Page 71: ...r guard grille Press the claps at the top of the guard grille and then pull the finger guard grille upwards to remove it 2 Loose the screws 2 3 circles used for fixing the blade pull the blade to the...

Page 72: ...at the top of the left decorative board and turn it over Once the top part is separated lift it upwards and then remove the decorative board Remove 2 screws used for fixing the left side panel extend...

Page 73: ...ctric box cover and then the electric box cover can be removed Remove the screws used for fixing indoor and outdoor connection wires on the wiring board the screws used for fixing the grounding wire o...

Page 74: ...hen the motor can be remove from the installation hole of motor support 11 Remove Driving Box Sub assy Pull the claps of driving box fixed at the base rotate it upwards and then the driving box sub as...

Page 75: ...ress plate of connection pipe can be removed 13 Remove Motor Holder Remove 4 screws used for fixing the motor support press clasp used for fixing the motor support to pull it to the right side and the...

Page 76: ...cedure of Outdoor Unit Procedure Steps 1 Remove big handle 2 Remove top cover top cover big handle valve cover Before disassamble Remove the screws fixing big handle valve cover and then remove them R...

Page 77: ...n remove the front grille Remove connection screws connecting the front panel with the chassis and the motor support and then remove the front panel Remove the screws fixing protective grille and then...

Page 78: ...remove the motor Remove the screws fixing motor support and then remove the motor support Remove the screws fixing clapboard and then remove the clapboard Remove the screws fixing electric box assy c...

Page 79: ...e compressor Remove the screws fixing valve support and then remove the valve support Unsolder the welding joint connecting the valve with capillary and condenser unsolder the welding joint connecting...

Page 80: ...connection pipeFor the unit with standard connection pipe of 5m there is no limitation for themin length of connection pipe For the unit with standard connection pipe of 7 5m and 8m the min length of...

Page 81: ...llowing steps A Cut the pip Confirm the pipe length according to the distance of indoor unit and outdoor unit Cut the required pipe with pipe cutter B Remove the burrs Remove the burrs with shaper and...

Page 82: ...88 33 10 63 72 2 439 111 0 737 5 63 46 34 10 2 73 2 358 112 0 717 4 60 23 35 9 779 74 2 28 113 0 697 3 57 18 36 9 382 75 2 206 114 0 678 2 54 31 37 9 003 76 2 133 115 0 66 1 51 59 38 8 642 77 2 064 11...

Page 83: ...983 5 84 61 34 13 59 73 3 144 112 0 956 4 80 31 35 13 04 74 3 04 113 0 93 3 76 24 36 12 51 75 2 94 114 0 904 2 72 41 37 12 76 2 844 115 0 88 1 68 79 38 11 52 77 2 752 116 0 856 0 65 37 39 11 06 78 2 6...

Page 84: ...62 11 32 101 3 22 15 362 9 24 51 41 63 10 93 102 3 13 14 342 8 25 49 19 64 10 54 103 3 04 13 323 9 26 47 08 65 10 18 104 2 96 12 306 2 27 45 07 66 9 83 105 2 87 11 289 6 28 43 16 67 9 49 106 2 79 10 2...

Page 85: ...6 756 8669426 E mail gree gree com cn www gree com HONG KONG GREE ELECTRIC APPLIANCES SALES LIMITED Add Unit 2612 26 F Miramar Tower 132 Nathan Road TST Kowloon HK Tel 852 31658898 Fax 852 31651029 Fo...

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