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Gree YAC1FB9, Service Manual

The Gree YAC1FB9 service manual is available for download for free on our website. This comprehensive manual provides detailed instructions on how to properly maintain and troubleshoot your Gree YAC1FB9 unit. Ensure optimum performance by downloading the manual from manualshive.com today.

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129

Installation and Maintenance

Service Manual

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The component picture is only for reference; please refer to the actual product.

24K(QD) 
GWH18QD-K6DNB2E/I   GWH18QD-K6DNC4A/I

Summary of Contents for YAC1FB9

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

Page 2: ...3 2 Outdoor Unit 38 4 Refrigerant System Diagram 41 5 Electrical Part 42 5 1 Wiring Diagram 42 5 2 PCB Printed Diagram 51 6 Function and Control 60 6 1 Remote Controller Introduction 60 6 2 Brief Desc...

Page 3: ...rocedure of Troubleshooting 103 9 3 Troubleshooting for Normal Malfunction 117 10 Exploded View and Parts List 119 10 1 Indoor Unit 119 10 2 Outdoor Unit 133 11 Removal Procedure 143 11 1 Removal Proc...

Page 4: ...tion Service Manual Outdoor Unit 1 Summary Indoor Unit B2 A5 C4 D2 for some model D2 for some model B4 B8 GWH09AFC K6DNA2F O GWH12AFC K6DNA2F O GWH18ALD K6DNA1A O GWH07QA K6DNC4A O GWH09AGA K6DNA1A O...

Page 5: ...GWH18AFD K6DNA2I O GWH24ALD K6DNA1B O GWH24AFE K6DNA2I O GWH18QD K6DNA1D O GWH24QE K6DNA1E O YAN1F6 WiFi MODE FAN SWING TURBO SLEEP TEMP WiFi LIGHT CLOCK TIMER ON TIMER OFF YAP1F2 WiFi TURBO FAN MODE...

Page 6: ...GWH12QC K6DNB2F I CB432N26102 18 GWH12QC K6DND2F CB461007502 GWH12QC K6DND2F I CB461N07502 19 GWH12QC K6DNC4F CB444013501 GWH12QC K6DNC4F I CB444N13500 CB363W03601 20 GWH12QC K6DNB2F CB432026101 GWH12...

Page 7: ...ea m2 12 18 Indoor Unit Model GWH07QA K6DNC4A I Product Code CB444N13200 Fan Type Cross flow Fan Diameter Length DXL mm 98X507 Cooling Speed r min 1300 1200 1000 800 Heating Speed r min 1300 1200 1000...

Page 8: ...X528 Fan Motor Speed rpm 900 Fan Motor Power Output W 30 Fan Motor RLA A 0 40 Fan Motor Capacitor F Heater Power Input W Outdoor Unit Air Flow Volume m3 h 1950 Fan Type Axial flow Fan Diameter mm 400...

Page 9: ...or Unit Model 1 GWH09QA K6DNB4A I 2 GWH09QA K6DNB2A I 3 GWH09QA K6DNB8A I 4 GWH09QA K6DNC4A I Product Code 1 CB434N20401 CB434N20402 2 CB432N25401 CB432N25402 3 CB438N12600 4 CB444N13800 Fan Type Cros...

Page 10: ...05X528 Fan Motor Speed rpm 900 Output of Fan Motor W 30 Fan Motor RLA A 0 40 Fan Motor Capacitor F Heater Power Input W Outdoor Unit Air Flow Volume m3 h 1950 Fan Type Axial flow Fan Diameter mm 400 D...

Page 11: ...r Unit Model 1 GWH12QB K6DNB2A I 2 GWH12QB K6DNB4A I 3 GWH12QB K6DNB8A I 4 GWH12QB K6DNC4A I Product Code 1 CB432N25502 CB432N25503 2 CB434N20501 3 CB438N12700 4 CB444N13900 Fan Type Cross flow Fan Di...

Page 12: ...05X528 Fan Motor Speed rpm 900 Output of Fan Motor W 30 Fan Motor RLA A 0 40 Fan Motor Capacitor F Heater Power Input W Outdoor Unit Air Flow Volume m3 h 1950 Fan Type Axial flow Fan Diameter mm 400 D...

Page 13: ...I 2 GWH09QC K6DNC4F I 3 GWH09QC K6DND2F I Product Code 1 CB432N26000 2 CB444N13400 3 CB461N07700 Fan Type Cross flow Fan Diameter Length DXL mm 98X633 5 Cooling Speed r min 1200 1100 1050 950 900 850...

Page 14: ...DXW mm 666X19 05X527 Fan Motor Speed rpm 900 Fan Motor Power Output W 30 Fan Motor RLA A 0 40 Fan Motor Capacitor F Heater Power Input W Outdoor Unit Air Flow Volume m3 h 1950 Fan Type Axial flow Fan...

Page 15: ...F I 2 GWH12QC K6DNC4F I 3 GWH12QC K6DND2F I Product Code 1 CB432N26100 2 CB444N13500 3 CB461N07500 Fan Type Cross flow Fan Diameter Length DXL mm 98X633 5 Cooling Speed r min 1350 1200 1100 1000 920 8...

Page 16: ...XW mm 666X19 05X527 Fan Motor Speed rpm 900 Fan Motor Power Output W 30 Fan Motor RLA A 0 40 Fan Motor Capacitor F Heater Power Input W Outdoor Unit Air Flow Volume m3 h 1950 Fan Type Axial flow Fan D...

Page 17: ...I 2 GWH12QC K6DNB2F I 3 GWH12QC K6DND2F I Product Code 1 CB425N16200 2 GWH12QC K6DNB2F I 3 CB461N07502 Fan Type Cross flow Fan Diameter Length DXL mm 98X633 5 Cooling Speed r min 1350 1200 1100 1000...

Page 18: ...W mm 666X19 05X527 Fan Motor Speed rpm 900 Fan Motor Power Output W 30 Fan Motor RLA A 0 40 Fan Motor Capacitor F Heater Power Input W 25 Outdoor Unit Air Flow Volume m3 h 1950 Fan Type Axial flow Fan...

Page 19: ...2I I 2 GWH18QD K6DNC4I I 3 GWH18QD K6DND2I I Product Code 1 CB432N26200 2 CB444N13300 3 CB461N07600 Fan Type Cross flow Fan Diameter Length DXL mm 106X706 Cooling Speed r min 1230 1170 1100 1020 960 8...

Page 20: ...Coil Length LXDXW mm 895X38 1X528 Fan Motor Speed rpm 880 Fan Motor Power Output W 30 Fan Motor RLA A 0 40 Fan Motor Capacitor F Heater Power Input W Outdoor Unit Air Flow Volume m3 h 2200 Fan Type Ax...

Page 21: ...A5I I 2 GWH18QD K6DND2I I Product Code 1 CB425N16300 2 CB461N07601 Fan Type Cross flow Fan Diameter Length DXL mm 106X706 Cooling Speed r min 1230 1170 1100 1020 960 880 800 550 Heating Speed r min 14...

Page 22: ...Coil Length LXDXW mm 895X38 1X528 Fan Motor Speed rpm 880 Fan Motor Power Output W 30 Fan Motor RLA A 0 40 Fan Motor Capacitor F Heater Power Input W Outdoor Unit Air Flow Volume m3 h 2200 Fan Type A...

Page 23: ...roduct Code CB444N12302 Fan Type Cross flow Fan Diameter Length DXL mm 106X706 Cooling Speed r min 1230 1150 1080 980 900 850 800 Heating Speed r min 1350 1250 1150 1050 980 900 850 Fan Motor Power Ou...

Page 24: ...oil Length LXDXW mm 851X38 1X660 Fan Motor Speed rpm 800 Fan Motor Power Output W 60 Fan Motor RLA A 0 4 Fan Motor Capacitor F Heater Power Input W Outdoor Unit Air Flow Volume m3 h 3200 Fan Type Axia...

Page 25: ...Unit Model 1 GWH18QD K6DNB2E I 2 GWH18QD K6DNC4A I Product Code 1 CB432N26600 2 CB444N13700 Fan Type Cross flow Fan Diameter Length DXL mm 106 706 Cooling Speed r min 1230 1170 1020 800 Heating Speed...

Page 26: ...Capacitor F Heater Power Input W Outdoor Unit Air Flow Volume m3 h 1950 Fan Type Axial flow Fan Diameter mm 400 Defrosting Method Automatic Defrosting Climate Type T1 Isolation I Moisture Protection I...

Page 27: ...I Product Code CB444N09802 Fan Type Cross flow Fan Diameter Length DXL mm 108X830 Cooling Speed r min 1250 1150 1050 950 900 850 800 Heating Speed r min 1250 1150 1050 1000 950 900 850 Fan Motor Powe...

Page 28: ...h LXDXW mm 935X38 1X660 Fan Motor Speed rpm 800 Fan Motor Power Output W 60 Fan Motor RLA A 0 58 Fan Motor Capacitor F Heater Power Input W Outdoor Unit Air Flow Volume m3 h 3200 Fan Type Axial flow F...

Page 29: ...door Unit Model GWH24QD K6DNC4B I GWH24QD K6DNB2B I Product Code CB444N13600 CB432N26700 Fan Type Cross flow Fan Diameter Length DXL mm 106X739 Cooling Speed r min 1400 1300 1000 800 Heating Speed r m...

Page 30: ...X528 Fan Motor Speed rpm 900 Fan Motor Power Output W 40 Fan Motor RLA A 0 70 Fan Motor Capacitor F Heater Power Input W Outdoor Unit Air Flow Volume m3 h 2800 Fan Type Axial flow Fan Diameter mm 445...

Page 31: ...I I GWH24QE K6DND2K I Product Code CB432N26300 CB461N07800 Fan Type Cross flow Fan Diameter Length DXL mm 108X830 Cooling Speed r min 1250 1100 1000 950 900 850 800 600 Heating Speed r min 1400 1250 1...

Page 32: ...er Coil Length LXDXW mm 839X38 1X616 Fan Motor Speed rpm 800 Fan Motor Power Output W 60 Fan Motor RLA A 0 25 Fan Motor Capacitor F Heater Power Input W Outdoor Unit Air Flow Volume m3 h 3600 Fan Type...

Page 33: ...I GWH24QE K6DND2K I Product Code CB425N16400 CB461N07801 Fan Type Cross flow Fan Diameter Length DXL mm 108X830 Cooling Speed r min 1250 1100 1000 950 900 850 800 600 Heating Speed r min 1400 1250 110...

Page 34: ...ser Coil Length LXDXW mm 839X38 1X616 Fan Motor Speed rpm 800 Fan Motor Power Output W 60 Fan Motor RLA A 0 65 Fan Motor Capacitor F Heater Power Input W Outdoor Unit Air Flow Volume m3 h 3600 Fan Typ...

Page 35: ...High Pipe length 5m 24K 24K Outdoor temp C Outdoor temp C Capacity ratio Capacity ratio Capacity ratio Outdoor temp C 0 20 40 60 80 100 120 Heating 18K 25 20 15 10 5 0 5 10 15 20 25 30 Conditions Ind...

Page 36: ...ty ratio 0 20 40 60 80 100 120 140 18 20 25 30 35 43 Conditions Indoor DB27 C WB19 C Indoor air flow Super High Pipe length 5m Capacity ratio Cooling Heating Capacity ratio Outdoor temp C Outdoor temp...

Page 37: ...to 1 1 12 to 14 75 to 37 Super High High 27 19 35 24 18K QD 24K QE 0 9 to 1 1 12 to 14 75 to 37 Super High High 27 19 35 24 24K QD 0 8 to 1 1 10 to 12 72 to 40 TURBO High Rated cooling condition C DB...

Page 38: ...MH H SH 12K cooling Indoor side noise when blowing Noise dB A Indoor fan motor rotating speed 35 40 45 50 25 30 18K heating heating GWH24QE K6DNC4E GWH24QE K6DNB2I 18K cooling Indoor side noise when b...

Page 39: ...QA 713 270 195 148 462 103 QB 790 275 200 168 5 462 159 5 QC 845 289 209 123 542 180 QD 970 300 224 104 685 181 QE 1078 325 246 206 685 187 Recommended distance Unit mm W QC QA QB D H 90 150 54 W1 W2...

Page 40: ...ion Service Manual 3 2 Outdoor Unit GWH09AFC K6DNA2F O GWH12AFC K6DNA2F O GWH18ALD K6DNA1A O Unit mm 285 675 732 455 310 555 330 Unit mm GWH07QA K6DNC4A O GWH09AGA K6DNA1A O GWH12AGB K6DNA1A O 285 675...

Page 41: ...39 Technical Information Service Manual GWH18AFD K6DNA2I O Unit mm 745 300 350 555 332 802 512 5 GWH18QD K6DNA1D O GWH24QE K6DNA1E O 340 965 700 396 890 560 364 Unit mm...

Page 42: ...40 Technical Information Service Manual GWH24ALD K6DNA1B O Unit mm 873 376 330 5 555 528 GWH24AFE K6DNA2I O Unit mm 958 660 402 340 889 371 570...

Page 43: ...4 Gas pipe 3 8 QA QB QC GWH18ALD K6DNA1A O Gas pipe 1 2 QD Gas pipe 5 8 QE Indoor unit COOLING 4 Way valve HEATING Outdoor unit Discharge Suction Heat exchanger evaporator Heat exchanger condenser Va...

Page 44: ...Black VT Violet OG Orange Note Jumper cap is used to determine fan speed and the swing angle of horizontal lover for this model GWH09QC K6DNB2F I GWH12QC K6DNB2F I 287 225 81 7 7 6 1625 7 03 6 1625 7...

Page 45: ...5 211 7 1 6 1 8 02725 2 7 50 1 803 3 8 1 9 325 725 3 7 1 0 287 225 81 7 3 3 1 5 725 2 3 60 1 02725 0 5 8 7 7 1 3 63 63 1 1 57 1 20 287 8 1 02 8 3 20 0 18 7 6 1625 7 03 6 1625 7 03 6 1625 57 5220 78 67...

Page 46: ...1625 57 5220 78 67 33 1 63 5 9 5 1 3 35 17 5 8 7 2 5 63 2 5 211 7 1 6 1 8 02725 2 7 50 1 803 3 8 1 9 325 725 3 7 1 0 287 225 81 7 3 3 1 5 725 2 3 60 1 02725 0 5 8 7 7 1 3 63 63 1 1 57 1 20 287 8 1 02...

Page 47: ...7 2 5 803 3 1 1 7 3 9 325 725 2 7 50 1 8 8 1 20 287 1 11 7 1 1 0 1 02725 3 3 1 5 1 0 1 7 3 02 8 20 0 18 3 5 21752 5 5 225 237 21 5 217 7 3 67 33 1 3 2 7 50 1 1 803 3 0 1 2 5 1 1 1 1 7 8 20 287 20 0 1...

Page 48: ...HUPLQDO ZKHQ WKH PDFKLQH LV UXQQLQJ VWRSSLQJ RU KDV EHHQ SRZHUHG RII IRU OHVV WKDQ PLQXWHV WR SUHYHQW WKH ULVN RI HOHFWULF VKRFN 9 325 725 3 5 217 7 237 21 225 3 5 67 33 1 3 2 7 50 1 1 803 3 0 1 2 5 1...

Page 49: ...1 803 3 0 1 2 5 1 1 1 1 7 8 20 287 20 0 18 3 5 02725 287 225 81 7 7 6 1625 63 63 57 3 5220 78 7 03 6 1625 7 03 6 1625 63 2 5 5 9 5 1 57 02725 0 6 1 8 0 21752 5 02725 211 7 1 6 1 5 0 83 2 1 67 33 1 02...

Page 50: ...UHG RII IRU OHVV WKDQ PLQXWHV WR SUHYHQW WKH ULVN RI HOHFWULF VKRFN 1 208 20 1 B 7 RWWRP DQG HDWHU 9 7521 3 16 21 9 9 2 1 3 1 1 0 02725 3 WR WKH LURQ VKHOO PRWRU 127 0RWRU JURXQG RQO DSSOLHV 1 6000070...

Page 51: ...HQ WKH PDFKLQH LV UXQQLQJ VWRSSLQJ RU KDV EHHQ 51 1 97 97 9 9 9 203 203 5 8 8 9 0 1 7 5 1 1 27720 1 7 5 9 7521 9 9 3 16 21 1 29 5 2 3527 725 6 7 B 1 20B 11 5 51 1 3OHDVH GRQ W WRXFK DQ WHUPLQDO ZKHQ W...

Page 52: ...SSLQJ RU KDV EHHQ SRZHUHG RII IRU OHVV WKDQ PLQXWHV WR SUHYHQW WKH ULVN RI HOHFWULF VKRFN 51 1 20 11 5 1 B 1 1 8 3 1 1 1 8 7 1 225 81 7 5 1 1 8 2 7 50 1 0 1 7 32 5 1 7 6 1625 203 9 8 35 17 5 8 7 2 5 3...

Page 53: ...Motor terminal 12 Wired controller terminal 4 Interface of health function live wire 13 Interface of display board 5 Auto button 14 Jumper cap 6 Up down swing terminal 15 Communication terminal for in...

Page 54: ...erface 12 Terminal with outdoor unit communication wire 5 Left right swing interface 13 Live wire interface 6 Interface of wired controller 14 Interface of health function neutral wire 7 Interface of...

Page 55: ...face 3 Fuse 12 Interface of dry contact only for the model with this function 4 Interface of health function neutral wire Applicable for some models 13 Interface of wifi 5 Interface of neutral wire 14...

Page 56: ...9 No Name 1 Earthing wire 2 Neutral wire live wire and communication cable 3 4 way valve 4 Electric heating belt of chasssis 5 Outdoor fan 6 Electronic expansion valve 7 Overload 8 Temperature sensor...

Page 57: ...FD K6DNA2I O No Name No Name 1 Earthing wire 8 Outdoor fan 2 Live wire 9 DRED Reserved 3 Neutral wire 10 Electronic expansion valve 4 Communication wire 11 Compressor Overload 5 4 way valve 12 Tempera...

Page 58: ...is electric heating 2 Terminal of temperature sensor 8 Terminal of indoor unit and outdoor unit communication 3 Terminal of electronic expansion valve 9 Power supply live wire 4 Terminal of outdoor fa...

Page 59: ...oling temperature sensor 10 Terminal of 4 way valve 3 Terminal of electronic expansion valve 11 Terminal of chassis electric heating 4 Terminal of outdoor temperature sensor 12 Terminal of live wire 5...

Page 60: ...5 6 7 8 No Name 1 Neutral wire live wire and communication cable 2 4 way valve 3 electric heating belt of chasssis 4 Electronic expansion valve 5 Outdoor fan 6 Temperature sensor 7 Overload 8 Three p...

Page 61: ...expansion valve 9 4 way valve 2 E disk Reserved 10 Electric heating belt of chassis 3 Computer monitoring interface 11 2 way valve 4 EE flash drive 12 DC motor 5 Grounding wire 13 Temperature sensor 6...

Page 62: ...ler can adjust the temperature under auto mode When matching with the unit which is without the function of adjustable temperature under auto mode the set temperature under auto mode may be invalid or...

Page 63: ...C F Holding or button 2s later set temperature on remote controller will change quickly On releasing button after setting is finished temperature indicator on indoor unit will change accordingly When...

Page 64: ...ion and will be displayed on the remote controller After this function is set the remote controller will send the detected ambient temperature to the controller and the unit will automatically adjust...

Page 65: ...repeat the operation above NOTE This function is only available for some models button By pressing this button you can see indoor set temperature indoor ambient temperature or outdoor ambient tempera...

Page 66: ...nit off status hold MODE and FAN buttons simultaneously for 5s to turn on or turn off the internal clean function When the internal clean function is turned on indoor unit displays CL During the self...

Page 67: ...troller at the same time Under on status the display will show the corresponding set function icons button Press this button to turn on the unit Press this button again to turn off the unit button MOD...

Page 68: ...this button again to exit turbo function and icon will disappear button Press or button once increase or decreaseset temperature 1 C 1 F Holding o r button 2s later set temperature on remote controll...

Page 69: ...etting If you don t need this function please use remote controller to cancel it Function introduction for combination buttons Energy saving function Under cooling mode press TEMP and CLOCK buttons si...

Page 70: ...ntroller Replacement of batteries in remote controller battery remove reinstall Cover of battery box signal sender 1 Press the back side of remote controller marked with as shown in the fig and then p...

Page 71: ...blowing angle When selecting heat mode the air conditioner operates under heat mode Press or button to adjust set temperature Press FAN button to adjust fan speed Press button to adjust fan blowing a...

Page 72: ...ir conditioner will blow fan automatically Press this button continuously for more than 2s the main unit will swing back and forth from up to down and then loosen the button the unit present position...

Page 73: ...vailable for some models button Press this button to achieve the on and off of health and scavenging functions in operation station Press this button for the first time to start scavenging function LC...

Page 74: ...be adjusted Press TURBO button and the remote controller won t send signal Sleep function and 8 C heating function can t operate at the same time If 8 C heating function has been set under heat mode p...

Page 75: ...he receiving window on indoor unit The distance between signal sender and receiving window should be no more than 8m and there should be no obstacles between them Signal may be interfered easily in th...

Page 76: ...ed and swing function is turned on Press this auto button at ON status to turn off the unit 3 Auto fan Heating mode During auto heating mode or normal heating ode auto fan speed will adjust the fan sp...

Page 77: ...original minimum stop time is 180s and then we change to The time interval between two start ups of compressor cant be less than 180 Ts 0 T 15 T is the variable of controller Thats to say the minimum...

Page 78: ...or changed to other modes from heating mode 4 way valve will be power off 2min after compressor stops working compressor is in operation status under heating mode When Toutdoor ambient temperature 30...

Page 79: ...rted after remote shutdown and powering up Outdoor Unit 18 24K 1 Input Parameter Compensation and Calibration 1 Check the ambient temperature compensation function Indoor ambient temperature compensat...

Page 80: ...e stopped to treat according to the frozen preventing protection Clear the trouble under the mode of power turn off heating and the protection times are not counted 2 Frequency limited Tfrozen prevent...

Page 81: ...eating overload frequency reducing temperature at normal speed T outer pipe then Cooling overload protects machine stopping 4 Power turn off If the Theating overload power turn off temperature Tinner...

Page 82: ...e not counted 2 Frequency limited If TLimited frequency temperature of module TModule Tfrequency reducing temperature at normal speed of module you should limit the frequency raising of compressor 3 R...

Page 83: ...automatically and you should press the ON OFF button to resume During the process of running if the running time of compressor exceeds the t Clearing Time of Compressor Phase Current Times the overcu...

Page 84: ...l status 7 Electric Heating Function of Compressor 1 When Toutdoor amb 5 C compressor stops operation while the electric heating of compressor starts operation 2 When Toutdoor amb 2 C the electric hea...

Page 85: ...tall 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 A...

Page 86: ...art 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 4 Ewpe Smart A...

Page 87: ...ch as protective boards cable cross loop and wire clip 7 The live wire neutral wire and grounding wire of power supply must be corresponding to the live wire neutral wire and grounding wire of the air...

Page 88: ...sure rise or compressor rupture resulting in injury 4 During refrigerant recovery make sure that liquid valve and gas valve are fully closed and power is disconnected before detaching the connection p...

Page 89: ...are engaging in the refrigeration system should bear the valid certification awarded by the authoritative organization and the qualification for dealing with the refrigeration system recognized by th...

Page 90: ...t kinds of refrigerant wont contaminate with each other The refrigerant tank should be kept upright at the time of filling refrigerant Stick the label on the system after filling is finished or havent...

Page 91: ...tape Electroprobe Electronic leakage detector Pipe pliers Pipe pliers Pipe cutter Screw driver Universal meter Vacuum pump Pipe bender Pipe expander Impact drill Drill head Electric drill Torque wrenc...

Page 92: ...least 50cm At least 15cm A At least 250cm Spac e ceiling Space to the wall e to th t least 15cm At least 15cm Space to the wall At least 300cm Space to the obstruction Space to the floor Space to the...

Page 93: ...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 94: ...it 4 Make sure that the installation follows the requirement of installation dimension diagram 5 Select a location which is out of reach for children and far away from animals or plants If it is unavo...

Page 95: ...n of right rear right left or rear left As show in Fig 3 2 When selecting leading out the pipe from left or right please cut off the corresponding hole on the bottom case As show in Fig 4 2 Open a pip...

Page 96: ...ck N 1 2 2 3 Outdoor unit connection yellow green blue brown Fig 13 Note The wiring connect is for reference only please refer to the actual one 4 Put wiring cover back and then tighten the screw 5 Cl...

Page 97: ...th cooling capacity of 10000W 16000W 10 expansion screws are needed Note gas pipe Liquid pipe Liquid valve gas valve Union nut Pipe joint Foot holes Foot holes Chassis Outdoor drain joint Drain hose D...

Page 98: ...e through wall height of drain hose shouldnt be higher than the outlet pipe hole of indoor unit As show in Fig 25 2 Slant the drain hose slightly downwards The drain hose cant be curved raised and flu...

Page 99: ...and air outlet It may cause insufficient cooling heating capacity 10 The dust and sundries caused during installation are removed It may cause malfunction or damaging the parts 11 The gas valve and li...

Page 100: ...efer to the malfunction analysis overload high temperature resistant EEPROM malfunction EE During cooling and drying operation compressor will stop while indoor fan will operate During heating operati...

Page 101: ...ation frequency for compressor is decreased Poor air return in indoor unit or fan speed is too low Voltage for DC bus bar is too high PH During cooling and drying operation compressor will stop while...

Page 102: ...1 Bad contact of DC motor feedback terminal 2 Bad contact of DC motor control end 3 Fan motor is stalling 4 Motor malfunction 5 Malfunction of mainboard revdetecting circuit Desynchro nizing of compr...

Page 103: ...ockage of air filter poor ventilation or air flow short pass for condenser the sys tem has noncondensing gas such as air water etc blockage of capillary assy including filter leakage inside four way v...

Page 104: ...102 Installation and Maintenance Service Manual If malfunction occurs corresponding code will display and the unit will resume normal until protection or malfunction disappears...

Page 105: ...Malfunction diagnosis process Is the wiring terminal between the temperature sensor and the controller loosened or poorly contacted Start Insert the temperature sensor tightly Yes Yes Yes Yes Yes Yes...

Page 106: ...he connection of PG motor control terminal is firm Turn on the unit again measure whether the output voltage on control terminal for PG motor is more than 50V within 1 min after the louvers are opened...

Page 107: ...the jumper cap tightly Is malfunction eliminated Is malfunction eliminated Is malfunction eliminated Replace the mainboard with the same model End Yes Yes Yes Yes Yes No No No No No 3 Malfunction of...

Page 108: ...charges slowly The zero cross detectioncircuit of the mainboard is defined abnormal Malfunction diagnosis process Turn power off for 1minute the turn back on The unit returns to normal Conclusion U8 i...

Page 109: ...g normally Replace outdoor mainboard Connect normally Adjust the connection Replace fan capacitor Replace motor Fan capacitor is broken Motor is broken Replace mainboard Improve the radiating environm...

Page 110: ...Manual 6 Malfunction 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...

Page 111: ...the power supply to restore the range 210VAC 250VAC power on and restart the unit If the fault is eliminated Measure the AC voltage between terminal L and and N on wiring board XT power supply Voltage...

Page 112: ...ss Y Y Y N N N Anti high temperature overload protection If the outdoor ambient temperature is higher than 53 C After the unit de energized for 20min If the radiating of outdoor and indoor unit is wel...

Page 113: ...stance value among three terminals UVW of compressor with a resistance measuring meter Whether the resistance value of three terminals are almost the same Measure the resistance between three terminal...

Page 114: ...ompressor stopping enough Fault diagnosis process No Yes No No Yes Yes Yes No Power on the unit Is stop time of the compressor longer than 3 minutes Restart it up after 3 minutes Does startup fail Are...

Page 115: ...or longer than Is the connection made in clockwise correctly Is connection sequence right direction Connect the wires correctly Replace the control panel AP1 If the fault is eliminated Replace the com...

Page 116: ...nutes after the complete unit is powered off Connect the wires correctly Is the terminal FA for the electronic expansion valve connected correctly If the fault is eliminated If the fault is eliminated...

Page 117: ...he AP1 voltage detection circuit is at fault Did the equipment operate normally before the failure occurs outdoor units Are wires broken Check wiring inside of the indoor and If the fault is eliminate...

Page 118: ...ly voltage too low with overload Replace the mainboard with the same model Is the indoor outdoor heat exchanger dirty or are the air inlet and outlet blocked The fan is abnormal Fan speed is too low o...

Page 119: ...thod 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...

Page 120: ...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 121: ...anual 10 Exploded View and Parts List 10 1 Indoor Unit The component picture is only for reference please refer to the actual product QC 15 25 26 27 36 35 33 34 28 29 30 31 32 1 2 3 4 5 6 17 8 9 10 37...

Page 122: ...ow Fan 16 Motor Press Plate 17 Fan Motor 18 Connecting pipe clamp 19 Rubber Plug Water Tray 20 Stepping Motor 21 Crank 22 Stepping Motor 23 Air Louver 24 Electric Box Assy 25 Air Louver 26 Axile Bush...

Page 123: ...ntenance Service Manual 28 27 2 29 3 5 9 10 7 12 13 15 16 17 19 18 20 21 22 23 25 26 8 1 4 6 11 14 24 A2 A5 A6 B6 display B2 B4 B8 C4 display The component picture is only for reference please refer t...

Page 124: ...11 Cold Plasma Generator 12 Evaporator Assy 13 Wall Mounting Frame 14 Cross Flow Fan 15 Fan Motor 16 Connecting pipe clamp 17 Drainage Hose 18 Stepping Motor 19 Crank 20 Electric Box Assy 21 Terminal...

Page 125: ...123 Installation and Maintenance Service Manual The component picture is only for reference please refer to the actual product QB MODE FAN SWING TURBO SLEEP TEMP WiFi LIGHT CLOCK TIMER ON TIMER OFF...

Page 126: ...Support 11 Evaporator Assy 12 Wall Mounting Frame 13 Fan Motor 14 Cross Flow Fan 15 Connecting pipe clamp 16 Rubber Plug Water Tray 17 Stepping Motor 18 Crank 19 Electric Box Assy 20 Axile Bush 21 Te...

Page 127: ...125 Installation and Maintenance Service Manual 18K QD for some model 43 44 38 39 40 42 41 26 27 28 29 31 30 36 37 The component picture is only for reference please refer to the actual product...

Page 128: ...orator Assy 18 Cross Flow Fan 19 Fan Motor 20 Motor Press Plate 21 Wall Mounting Frame 22 Connecting pipe clamp 23 Crank 24 Stepping Motor 25 Drainage hose 26 Electric Box Assy 27 Electric Box 28 Term...

Page 129: ...127 Installation and Maintenance Service Manual GWH18QD K6DNC4D 45 46 38 The component picture is only for reference please refer to the actual product...

Page 130: ...Fan Motor 20 Motor Press Plate 21 Wall Mounting Frame 22 Connecting pipe clamp 23 Crank 24 Stepping Motor 25 Drainage hose 26 Electric Box Assy 27 Lower Shield of Electric Box 28 Electric Box 29 Jump...

Page 131: ...vice Manual 34 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 18 19 20 21 24 31 35 36 37 22 23 17 25 32 33 26 27 28 30 29 The component picture is only for reference please refer to the actual product 24K QD...

Page 132: ...Bearing 15 Evaporator Support 16 Evaporator Assy 17 Cross Flow Fan 18 Fan Motor 19 Motor Press Plate 20 Wall Mounting Frame 21 Connecting pipe clamp 22 Crank 23 Stepping Motor 24 Drainage hose 25 Elec...

Page 133: ...131 Installation and Maintenance Service Manual QE For some models The component picture is only for reference please refer to the actual product 43...

Page 134: ...17 Motor Press Plate 18 Fan Motor 19 Connecting pipe clamp 20 Drainage Hose 21 Stepping Motor 22 Crank 23 Air Louver 1 24 Air Louver 1 25 Stepping Motor 26 Guide Louver 27 Axile Bush 28 Electric Box...

Page 135: ...anual The component is only for rererence please refer to the actual product 10 2 Outdoor Unit GWH09AFC K6DNA2F O GWH12AFC K6DNA2F O GWH18ALD K6DNA1A O 22 21 20 17 19 16 18 5 6 7 10 11 9 1 26 25 31 30...

Page 136: ...Sub Assy 11 Wire Clamp 12 Valve Cover 13 Silencer 14 Cut off Valve Sub Assy 15 Strainer 16 Valve Support 17 Compressor and Fittings 18 Chassis Sub assy 19 Motor Support 20 Fan Motor 21 Axial Flow Fan...

Page 137: ...ervice Manual The component is only for reference please refer to the actual product GWH07QA K6DNC4A O GWH09AGA K6DNA1A O GWH12AGB K6DNA1A O 14 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 15...

Page 138: ...e Assy 13 Silencer 14 Cut off valve 1 4 N 15 Cut off valve 3 8 N 16 Valve Support 17 4 Way Valve Assy 18 Compressor and Fittings 19 Chassis Sub assy 20 Motor Support 21 Brushless DC Motor 22 Axial Flo...

Page 139: ...intenance Service Manual The component is only for rererence please refer to the actual product GWH18AFD K6DNA2I O 27 14 39 26 25 24 21 23 16 20 18 19 22 5 13 6 10 11 9 2 1 31 30 29 36 35 34 33 38 15...

Page 140: ...itting 14 Valve Cover 15 Silencer 16 Cut off Valve Sub Assy 17 Strainer 18 Cut off Valve Assy 19 Valve Support 20 4 Way Valve Assy NO Description 21 Compressor and Fittings 22 Chassis Sub assy 23 Moto...

Page 141: ...139 Installation and Maintenance Service Manual GWH18QD K6DNA1D O GWH24QE K6DNA1E O The component picture is only for reference please refer to the actual product 35...

Page 142: ...alve Support 14 Handle 15 Wire Clamp 16 Rear Grill 17 Condenser Assy 18 Reactor 19 Clapboard Sub Assy 20 Coping 21 Supporting Board Condenser 22 Motor Support Sub Assy 23 Fan Motor 24 Axial Flow Fan 2...

Page 143: ...s 9 Compressor Gasket 10 4 Way Valve 11 4 Way Valve Assy 12 Capillary Tube 13 Capillary Tube assy 14 Right Side Plate Assy 15 Valve Support 16 Cut off valve 1 2 N 17 Cut off valve 1 4 N NO Description...

Page 144: ...nd Fittings 6 Electronic Expansion Valve 7 Right Side Plate 8 Valve Support 9 Cut off valve 1 4 N 10 Cut off valve 5 8 N 11 Valve Cover 12 Handle 13 Terminal Board NO Description 14 4 Way Valve Assy 1...

Page 145: ...off the 2 screws that are locking the display board Separate the display board from the front panel A2 A3 display Screw off the 2 screws that are locking the display board This display can be disasse...

Page 146: ...w caps before removing the screws around the air outlet 2 The quantity of screws fixing the front case sub assy is different for different models b Loosen the connection clasps between front case sub...

Page 147: ...box assy Twist off the screws that are locking the wire clip Loosen the power cord and remove its wiring terminal Lift up the main board and take it off d Instruction Some wiring terminal of this pro...

Page 148: ...d then remove the connection pipe clamp c First remove the left side of the evaporator from the groove of bottom case and then remove the right side from the clasp on the bottom case d Adjust the posi...

Page 149: ...d then remove the motor clamp b Remove the screws at the connection place of cross flow blade and motor lift the motor and cross flow blade upwards to remove them Remove the bearing holder sub assy Re...

Page 150: ...e and then remove the valve cover 3 Remove top cover Remove connection screws connecting the top panel with the front panel and the right side plate and then remove the top panel GWH09AFC K6DNA2F O GW...

Page 151: ...crews connecting the front panel with the chassis and the motor support and then remove the front panel 6 Remove right side plate and left side plate Remove connection screws connecting the right side...

Page 152: ...fixing the motor and disconnect the leading wire insert of the motor Then remove the motor Remove the tapping screws fixing the motor support and lift the motor support to remove it 9 Remove Electric...

Page 153: ...the welding joint between the gas valve and the air return pipe to remove the gas valve NOTE Discharge the refrigerant completely befor unsoldering when unsoldering wrap the gas valve with a wet cloth...

Page 154: ...r Remove the connection screw fixing the big handle and then remove the valve cover 3 Remove top cover Remove connection screws connecting the top panel with the front panel and the right side plate a...

Page 155: ...move the grille 5 Remove front panel Remove connection screws connecting the front panel with the chassis and the motor support and then remove the front panel 6 Remove right side plate Remove connect...

Page 156: ...s fixing the motor and disconnect the leading wire insert of the motor Then remove the motor Remove the tapping screws fixing the motor support and lift the motor support to remove it 9 Remove Electri...

Page 157: ...ve and unsolder the welding joint between the gas valve and the air return pipe to remove the gas valve NOTE Discharge the refrigerant completely befor unsoldering when unsoldering wrap the gas valve...

Page 158: ...big handle and valve cover Remove the screws fixing big handle valve cover and then remove them 3 Remove top cover Remove the screws fixing top panel and then remove the top panel GWH18AFD K6DNA2I O...

Page 159: ...then remove the front panel assy 5 Remove right side plate assy Rescrew the ground screws remove the ground wires loosen the screws fixing terminal board remove the terminal board rescrew the screws...

Page 160: ...e 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 Remove the screws fixing the motor and then remove the moto...

Page 161: ...when unsoldering wrap the gas valve with a wet cloth completely to avoid damage to the valve caused by high temperature 11 Remove valve suppprt Remove the screws fixing valve support then remove the v...

Page 162: ...then remove the isolation sheet 14 Remove clapboard assy Remove the screws fixing the clapboard assy and then remove the clapboard assy 15 Remove compressor Remove the 3 foot nuts on the compressor a...

Page 163: ...isassembly 2 Remove valve cover Remove the connection screw and then remove the valve cover 3 Remove big handle Remove the connection screw and then remove the big handle GWH24ALD K6DNA1B O Caution di...

Page 164: ...h the front panel and the right side plate and then remove the top panel 5 Remove grille Remove connection screws between the front grille and the front panel Then remove the grille 6 Remove front pan...

Page 165: ...t and gasket on the blade and then remove the axial flow blade Remove the nut and gasket on the blade and then remove the axial flow blade 9 Remove motor and motor support Remove the tapping screws fi...

Page 166: ...ation sheet Remove the screws fixing the isolation sheet and then remove the isolation sheet 12 Remove 4 way valve assy and cut off valve Unsolder the welding joints connecting the 4 way valve assy an...

Page 167: ...ide plate and then remove the left side plate 14 Remove condenser sub assy Remove the screws fixing the Remove condenser sub assy and then remove the Remove condenser sub assy 15 Remove compressor Rem...

Page 168: ...g the handle and then remove the handle 2 Remove valve cover Remove the screw fixing the valve cover and then remove the valve cover 3 Remove top panel Remove the screws fixing the top panel and then...

Page 169: ...e the panel grille 5 Remove front panel Remove screws fixing the front panel and then remove the front panel 6 Remove right side plate Remove screws fixing connecting the front panel with the chassis...

Page 170: ...ectricbox loosen the wire bundle pull out the wiring terminals and then pull electric boxupwards to remove it 8 Remove axial flow blade Remove nut fixing the blade and then remove the blade 9 Remove m...

Page 171: ...t off valve and then remove the cut off valve Remove screws fixing the valve support subassy and then remove the valve support subassy Note When pulling out the wiring terminal pay attention to loose...

Page 172: ...lve assy the 4 way valve assy with capillary sub assy compressor and condenser remove the electronic expansion valve assy and 4 way valve Note Before unsoldering the welding joint wrap the 4 way valve...

Page 173: ...171 Installation and Maintenance Service Manual Step Procedure 16 Remove compressor Remove the 3 foot nuts on the compressor and then remove the compressor compressor foot nuts...

Page 174: ...pull the handle and valve cover up ward to remove it b Remove the 3 screws connecting the top panel with the front panel and the right side plate and then remove the top panel 2 Remove grille and pan...

Page 175: ...r case with right side plate and left side plate and then remove the outer case 3 Remove right left side plate a Remove the screws connecting the right side plate with electric box assy valve support...

Page 176: ...move the 2 screws connecting the motor support and chassis and then loosen the stopper to remove the motor support 6 Remove electric box assy Remove the screws fixing electric box assy pull out each w...

Page 177: ...the welding joint wrap the 4 way valve with a wet cloth completely to avoid damage to the valve caused by high temperature 9 Remove liquid valve and gas valve Unsolder the welding joint connecting the...

Page 178: ...damping cushion Note Keep the ports of discharge pipe and suction pipe from foreign objects 12 Remove condenser sub assy a Remove the screws connecting the support condenser and condenser assy and th...

Page 179: ...s degree Tf Tcx1 8 32 Ambient temperature Fahrenheit display temperature Fahrenheit Celsius Fahrenheit display temperature Fahrenheit Celsius Fahrenheit display temperature Fahrenheit Celsius 32 33 32...

Page 180: ...lowing steps B Remove the burrs Remove the burrs with shaper and prevent the burrs from getting into the pipe C Put on suitable insulating pipe A is different according to the diameter please refer to...

Page 181: ...ature Sensors for Indoor and Outdoor 20K Resistance Table of Discharge Temperature Sensor for Outdoor 50K Temp o C Resistance k Temp o C Resistance k Temp o C Resistance k Temp o C Resistance k 19 181...

Page 182: ...d 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...

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