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Installation and Maintenance

Service Manual

Remove 3 screws fixing the left drive box with
screwdriver.

Take out right drive box.

Remove 3 screws fixing left drive box with
screwdriver.

Take out the left drive box.

left drive box

right drive box

screws

Remove the left side cover plate of front case.

cover plate

8. Remove drive box

Procedure

Steps

Содержание KW09HUCA4D

Страница 1: ...Models KW09HUCA4D KW12HUCA4D KW18HUCA4D Refrigerant R410A AIR CONDITIONER INSTRUCTION MANUAL ...

Страница 2: ...14 5 2 PCB Printed Diagram 16 6 Function and Control 19 6 1 Remote Controller Introduction 19 6 2 GREE App Operation Manual 25 6 3 Ewpe Smart App Operation Manual 26 6 4 Brief Description of Modes and Functions 27 Part Ⅱ Installation and Maintenance 36 7 Notes for Installation and Maintenance 36 8 Installation 39 8 1 Installation Dimension Diagram 39 8 2 Installation Parts checking 41 8 3 Selectio...

Страница 3: ...d Parts List 76 10 1 Indoor Unit 76 10 2 Outdoor Unit 78 11 Removal Procedure 82 11 1 Removal Procedure of Indoor Unit 82 11 2 Removal Procedure of Outdoor Unit 91 Appendix 102 Appendix 1 Reference Sheet of Celsius and Fahrenheit 102 Appendix 2 Configuration of Connection Pipe 102 Appendix 3 Pipe expanding method 103 Appendix 4 List of Resistance for Temperature Sensor 104 ...

Страница 4: ...1 Technical Information Service Manual 1 Summary Indoor Unit Outdoor Unit Remote Controller Part Ⅰ Technical Information KW09HUCA4DO KW12HUCA4DO KW18HUCA4DO SAA1FB1F KW09HUCA4DI KW12HUCA4DI KW18HUCA4DI ...

Страница 5: ...Unit Model of indoor unit KW09HUCA4DI Indoor Unit Product Code CB264N01004_L74318 Fan Type Cross flow Diameter Length DXL inch Ф4 3 16X27 1 2 Fan Motor Cooling Speed SH H MH M ML L SL Q r min 1170 1103 952 851 751 699 650 599 Fan Motor Heating Speed SH H MH M ML L SL Q r min 1170 1103 1019 952 870 800 751 Output of Fan Motor W 20 Fan Motor RLA A 0 2 Fan Motor Capacitor μF Evaporator Form Aluminum ...

Страница 6: ... Length LXDXW inch 30X2 1 4X21 5 8 Fan Motor Speed rpm 850 Output of Fan Motor W 30 Fan Motor RLA A 0 36 Fan Motor Capacitor μF Air Flow Volume of Outdoor Unit CFM 1412 Fan Type Axial flow Fan Diameter inch Φ17 1 4 Defrosting Method Automatic Defrosting Climate Type T1 Isolation I Moisture Protection IP24 Design Pressure High PSIG 550 Design Pressure Low PSIG 240 Sound Pressure Level H M L dB A 53...

Страница 7: ...of indoor unit KW12HUCA4DI Indoor Unit Product Code CB264N01104_L74318 Fan Type Cross flow Diameter Length DXL inch Ф4 3 16X27 1 2 Fan Motor Cooling Speed SH H MH M ML L SL Q r min 1200 1103 952 851 751 699 650 599 Fan Motor Heating Speed SH H MH M ML L SL Q r min 1200 1103 1019 952 870 800 751 Output of Fan Motor W 20 Fan Motor RLA A 0 2 Fan Motor Capacitor μF Evaporator Form Aluminum Fin copper ...

Страница 8: ... Length LXDXW inch 30X2 1 4X21 5 8 Fan Motor Speed rpm 850 Output of Fan Motor W 30 Fan Motor RLA A 0 36 Fan Motor Capacitor μF Air Flow Volume of Outdoor Unit CFM 1412 Fan Type Axial flow Fan Diameter inch Φ17 1 4 Defrosting Method Automatic Defrosting Climate Type T1 Isolation I Moisture Protection IP24 Design Pressure High PSIG 550 Design Pressure Low PSIG 240 Sound Pressure Level H M L dB A 55...

Страница 9: ...of indoor unit KW18HUCA4DI Indoor Unit Product Code CB264N00904_L74318 Fan Type Cross flow Diameter Length DXL inch Ф4 3 16X27 1 2 Fan Motor Cooling Speed SH H MH M ML L SL Q r min 1450 1200 1100 930 800 700 650 600 Fan Motor Heating Speed SH H MH M ML L SL Q r min 1400 1200 1100 1000 900 800 750 Output of Fan Motor W 20 Fan Motor RLA A 0 2 Fan Motor Capacitor μF Evaporator Form Aluminum Fin coppe...

Страница 10: ... Length LXDXW inch 37 13 16X3 7 16X29 7 16 Fan Motor Speed rpm 820 Output of Fan Motor W 90 Fan Motor RLA A 0 65 Fan Motor Capacitor μF Air Flow Volume of Outdoor Unit CFM 2354 Fan Type Axial flow Fan Diameter inch Φ21 5 8 Defrosting Method Automatic Defrosting Climate Type T1 Isolation I Moisture Protection IP24 Design Pressure High PSIG 550 Design Pressure Low PSIG 240 Sound Pressure Level H M L...

Страница 11: ...1 42 43 44 45 46 Capacity ratio Condition Indoor DB81 F WB66 F Indoor air flow Turbo Pipe length 5m Outdoor temp C Capacity ratio g n i t a e H g n i l o o C 20 15 10 5 0 5 10 110 120 130 100 90 80 70 60 50 40 Outdoor temp C Condition Indoor DB68 F Indoor air flow Turbo Pipe length 5m 09K 12K 18K Cooling Cooling Heating Heating Cooling Heating 24K 0 2 4 6 8 10 12 14 0 20 40 60 80 100 120 0 2 4 6 8...

Страница 12: ...or unit Fan speed of outdoor unit Compressor revolution Hz Indoor Outdoor PSIG T1 F T2 F 81 66 95 75 09K 12K 123 2 145 in 46 52 out 52 57 in 122 176 out 99 109 Suprt High High 58 81 66 95 75 18K 130 5 159 5 54 to 57 176 to 104 Super High High 75 Rated heating condition F DB WB Model Pressure of gas pipe connecting indoor and outdoor unit Inlet and outlet pipe temperature of heat exchanger Fan spee...

Страница 13: ...Low Middle High Middle Low High Middle Low 40 42 44 46 48 50 52 54 20 40 30 50 60 70 80 Compressor frequency Hz Noise dB A Noise dB A Heating Cooling 12K 09K 46 48 50 52 54 56 58 60 20 30 40 50 60 70 80 90 100 Compressor frequency Hz Noise dB A Heating Cooling 45 50 35 40 30 20 25 Indoor fan motor rotating speed Super High Super Low Middle High Middle Low High Middle Low Noise dB A 18K ...

Страница 14: ...cal Information Service Manual 3 Outline Dimension Diagram 3 1 Indoor Unit 125 148 Φ55 Φ55 2 3 1 8 Q Q W 3 1 2 27 7 5 16 D H Unit inch Model W H D Q 09K 12K 37 13 16 12 5 8 8 Φ2 3 16 18K 37 13 16 12 5 8 8 Φ2 3 4 ...

Страница 15: ...12 Technical Information Service Manual 3 2 Outdoor Unit 35 3 8 32 3 16 21 2 3 13 1 2 12 23 1 2 14 7 8 18K Unit inch Unit inch 14 9 16 31 1 8 16 13 16 15 9 16 39 3 8 24 36 09K 12K ...

Страница 16: ...WLRQ 5HIULJHUDQW 6 VWHP LDJUDP RQQHFWLRQ SLSH VSHFL FDWLRQ LTXLG PP DV PP RU 7 LTXLG PP DV PP RU 7 INDOOR UNIT OUTDOOR UNIT HEAT EXCHANGE EVAPORATOR HEAT EXCHANGE CONDENSER COMPRESSOR GAS SIDE 3 WAY VALVE LIQUID SIDE 2 WAY VALVE COOLING HEATING Accumlator Discharge Suction 4 Way valve Electron Strainer Strainer expansion valve Strainer Capillary D Strainer Intercooler ...

Страница 17: ...e fan speed and the swing angle of horizontal lover for this model 3OHDVH GRQ W WRXFK DQ HOHFWURQLF FRPSRQHQW RU WHUPLQDO ZKHQ WKH PDFKLQH LV UXQQLQJ VWRSSLQJ RU KDV EHHQ SRZHUHG RII IRU OHVV WKDQ PLQXWHV WR SUHYHQW HOHFWULF VKRFN 1 3 0 1 2 5 20 287 8 5 1 63 63 3 803 3 78 57 5220 02725 20 3 3 1 1 02725 83 2 1 02725 6 7 7 5 7 67 33 1 2 5 7 7 216 78 7 03 6 1625 5220 7 03 6 1625 67 33 1 02725 7 02725...

Страница 18: ... 1 7 5 8 5 1 1 1 8 1 1 1 7 127 0RWRU DSSOLHV WR WKH LURQ VKHOO PRWRU JURXQG RQO N 1 1 225 81 7 2 3 63610000445 These wiring diagrams are subject to change without notice please refer to the one supplied with the unit KW18HUCA4DO 3OHDVH GRQ W WRXFK DQ WHUPLQDO ZKHQ WKH YROWDJH RI WHUPLQDO 3 DQG 1 DW 3 LV KLJKHU WKDQ 9 WR SUHYHQW WKH ULVN RI HOHFWULF VKRFN 20B 11 5 9 9 9 9 8 5 725 2 9 9 3 16 21 7521...

Страница 19: ...l wire 5 Interface of DC motor 9 Interface of WIFI 13 Display interface 2 Interface of live wire 6 Up down swing 3 10 Interface of left right swing 14 Interface of communication wire for neutral wire and live wire 3 Interface of fuse 7 Tube temperature sensor 11 Up down swing 2 4 Interface of jumper cap 8 Ambient temperature sensor 12 Up down swing 1 ...

Страница 20: ...17 Technical Information Service Manual Top view Bottom view Outdoor Unit 2 1 3 4 5 6 8 7 9 10 11 12 13 14 15 09K 12K ...

Страница 21: ... pressure protection 3 Terminal of compressor overload protection 4 Terminal of outdoor temperature sensor 5 Terminal of outdoor fan 6 Terminal of 4 way valve 7 Communication wire with indoor unit 8 Power supply live wire 9 Earthing wire 10 Power supply neutral wire 11 PFC induction wire Top view Bottom view 18K ...

Страница 22: ...conditioner will enter matching automatically If matching is done the unit will give out three sounds if matching is failed please get closer to the unit and arrange matching again Matching instructions This model adopts RF remote control The remote controller shall be matched with the air conditioner before operation otherwise the remote control will be invalid Before operation please read the in...

Страница 23: ...ote controller near the object of high temperature or low temperature in order to avoid detecting inaccurate ambient temperature When I FEEL function is turned on the remote controller should be put within the area where indoor unit can receive the signal sent by the remote controller Auto Introduction for Icons on Display Screen battery power Send signal 8ć heating function I feel function Set fa...

Страница 24: ...unit no display stops at current position AUTO COOL FAN DRY HEAT Note For preventing cold air after starting up heating mode indoor unit will delay 1 5 minutes to blow air actual delay time is depend on indoor ambient temperature Set temperature range from remote controller 16 30 C 61 86 F 9 button Under simple swing mode press this button can turn on display icon or turn off not display icon up d...

Страница 25: ...the icon is displayed and the indoor fan will continue operation for 2 minutes in order to dry the indoor unit even though you have turned off the unit After energization X FAN OFF is defaulted X FAN is not available in AUTO FAN or HEAT mode This function indicates that moisture on evaporator of indoor unit will be blowed after the unit is stopped to avoid mould Having set X FAN function on After ...

Страница 26: ...or inquiry procedure if there is no button pressing within 10s remote controller will automatically exit the sleep curve setting and resume the original display If ON OFF MODE TIMER SLEEP COOLING or HEATING button is pressed during the setting or inquiry procedure remote controller will also exit the sleep curve setting Sleep 4 is Siesta mode The set temperature will change automatically according...

Страница 27: ...sleep function has been set under heating mode start up the 8 heating function will cancel sleep function Under temperature display the remote controller will display 46 heating Note During operation point the remote control signal sender at the receiving window on indoor unit The distance between signal sender and receiving window should be no more than 26 25ft and there should be no obstacles be...

Страница 28: ...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 Internet Cellular Other Wi FI Home Wi Fi Home wireless router Home Wi Fi Gree Gree Cloud GREE APP intelligent home appliances iOS system Support iOS7 0 and above version Android system Support Android...

Страница 29: ... 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 Operation Manual iOS system Support iOS7 0 and above version Android system Support Android 4 4 and above version App Download Linkage Internet Cellular Other Wi FI Home Wi Fi Home wireless router Hom...

Страница 30: ...fer to outdoor unit instruction for inverter unit As for normal intelligent defrosting the unit will defrost automatically according to frosting condition and operation indicator will be on 10s and off 0 5s circularly As for non strop defrosting the indoor fan will be started up according to the frosting condition and the operation indicator will be on 10s and off 0 5s circularly Protection functi...

Страница 31: ...evention protection Other malfunction E2 High power protection Other malfunction L9 Lacking inverse phase protection of compressor Other malfunction U2 PFC current malfunction Other malfunction HC High DC bus bar voltage protection Other malfunction PH Low DC bus bar voltage protection Other malfunction PL Freon lacking protection Other malfunction F0 Mode shock Malfunction of hardware E7 Non matc...

Страница 32: ...nt recovery function Within 5min after energization on or off status set cooling mode with remote controller and adjust the temperature at 16 When pressing light button on remote controller to any one indoor unit for 3 times within 3s the complete unit will enter into refrigerant recovery status after setting is succeeded and all indoor unit displayed F0 After that maintenance staff turns off all ...

Страница 33: ...idify and air purifier After matching is succeeded you can control the related mode through remote controller 2 I Feel function When I FEEL command is received the controller will operate according to the ambient temperature sent by the remote controller For defrosting and cold blow prevention the unit operates according to the ambient temperature sensed by the air conditioner The remote controlle...

Страница 34: ...hould delay 2mins to stop operation and then horizontal louver will stop at the current position 3 Once theres blockage protection to motor cut off the power to resume operation 4 During blockage protection to motor remote controller and buttons are valid and they can turn on or turn off the unit while they wont perform detailed target indoor fan outdoor fan compressor and electric heating tube st...

Страница 35: ...under heating mode 1 3 2 Stop operation under heating mode a When indoor unit reached OFF or stop operation conditioner compressor stop operation and outdoor fan will delay 1min to stop operation b Switch to cooling drying or fan mode a compressor stops operation b 4 way valve will delay 2min to be de energized c outdoor fan will delayed 30s to stop operation d status of 4 wayvalve energized 1 3 3...

Страница 36: ...on main relay will break off When low voltage protection is resumed main relay will be closed 2 7 When overload malfunction is occurred compressor stopped operation and outdoor fan will delay 30s to stop operation when malfunction is cleared up and compressor has stopped for 3min the unit will resume operation 2 8 Power protection of compressor 1 When PCB 1500w prohibit increasing frequency 2 When...

Страница 37: ...n reaching the temperature point in heating 6 2 Under this mode the temperature setting range is 16 30ć 7 Defrosting control heating mode 7 1 If it turns to defrosting time and it detected that the defrosting temperature is satisfied for 3mins successively the unit turns into defrosting process 7 2 Defrosting starting compressor stops operation and restart it up after 55s delayed 7 3 Defrosting en...

Страница 38: ...3A IAC current operation frequency of compressor may decrease or increase 14 2 If 17A IAC current the system will stop operation because of overcurrent the complete unit can resume operation only after the compressor stops for 3min 14 3 If the unit is stopped because of overcurrent for 6 times successively it can t resume operation automatically which can only be resumed by pressing ON OFF button ...

Страница 39: ...ctive accessories such 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 conditioner 8 The power cord and power connection wires cant be pressed by hard objects 9 If power cord or connection wire is broken it must be replaced by a qualified person 1 Av...

Страница 40: ...lly closed and power is disconnected before detaching the connection pipe If compressor starts running when stop valve is open and connection pipe is not yet connected air will be sucked in and cause pressure rise or compressor rupture resulting in injury 5 When installing the unit make sure that connection pipe is securely connected before the compressor starts running If compressor starts runnin...

Страница 41: ... Electroprobe 7 Electronic leakage detector 11 Pipe pliers pipe cutter 2 Screw driver 5 Universal meter 8 Vacuum pump 12 Pipe expander pipe bender 3 Impact drill drill head electric drill 6 Torque wrench open end wrench inner hexagon spanner 9 Pressure meter 13 Soldering appliance refrigerant container 10 Electronic scale ...

Страница 42: ...ll Space to the wall At least 5 7 8 inch At least 98 7 16 inch At least 5 7 8 inch At least 5 7 8 inch At least 118 inch Space to the obstruction Drainage pipe Space to the wall Space to the obstruction Space to the obstructio Space to the obstruction At least 19 11 16 inch Atleast1113 16inch At least 19 11 16 inch At least 11 13 16 inch At least 78 5 8 inch ...

Страница 43: ...oor 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 installation Note this flow is only for reference please find the more detailed installation steps in this section Select outdoor unit installation location Install the support of outdoor unit select it accor...

Страница 44: ...fessional Please make sure it is always grounded effectively otherwise it may cause electric shock 2 The yellow green wire in air conditioner is grounding wire which cant be used for other purposes 3 The grounding resistance should comply with national electric safety regulations 4 The appliance must be positioned so that the plug is accessible 5 An all pole disconnection switch having a contact s...

Страница 45: ...the joint with tape As show in Fig 9 4 Outlet Pipe 1 The pipe can be led out in the direction 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 piping hole with the diameter of 2 3 16 or 2 3 4inch on the selected outlet pipe position In order to drain smo...

Страница 46: ...g to a certain degree separate the indoor power and then separate the drain hose As show in Fig 15 3 Bind them evenly 4 The liquid pipe and gas pipe should be bound separately at the end 9 Hang the Indoor Unit 1 Put the bound pipes in the wall pipe and then make them pass through the wall hole 2 Hang the indoor unit on the wall mounting frame 3 Stuff the gap between pipes and wall hole with sealin...

Страница 47: ...gher than the wall hole you must set a U shaped curve in the pipe before pipe goes into the room in order to prevent rain from getting into the room As show in Fig 24 18K 1 Let the connection wire sleeve go through the two holes of retaining plate tighten the connection joint of sleeve and retaining plate remove the wire clip connect the power connection wire and power cord to the wiring terminal ...

Страница 48: ...3min If there are air bubbles coming out of this position theres a leakage 8 7 Vacuum Pumping and Leak Detection NO Items to be checked Possible malfunction 1 Has the unit been installed firmly The unit may drop shake or emit noise 2 Have you done the refrigerant leakage test It may cause insufficient cooling heating capacity 3 Is heat insulation of pipeline sufficient It may cause condensation an...

Страница 49: ...rotection of compressor E4 Please refer to the malfunction analysis discharge protection overload 5 Overcurrent protection E5 1 Supply voltage is unstable 2 Supply voltage is too low and load is too high 3 Evaporator is dirty 6 Communi cation Malfunction E6 Refer to the corresponding malfunction analysis 7 High temperature resistant protection E8 Refer to the malfunction analysis overload high tem...

Страница 50: ...ent 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 temperature sensor hasnt been connected well or is damaged Please check it by referring to the resistance table for temperature sensor 15 Outdoor condenser temperature sensor is open short circuited F...

Страница 51: ...oltage 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 if its normal theres malfunction for the circuit please replace the control panel AP1 22 Voltage of DC bus bar is too low PL During cooling and drying operation compressor will stop while indoor fan ...

Страница 52: ...e charging malfunction analysis of capacitor 29 Malfunction of module 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 panel AP1 30 Module high temperature protection P8 During cooling operation compressor will stop while indoor fan will operate During he...

Страница 53: ...5 Malfunction 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 complete unit will stop operation Refer to the malfunction analysis IPM protection loss of synchronism protection and overcurrent protection of phase current for compressor 37 PFC protection HC Duri...

Страница 54: ...on 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 stop operation 1 Supply voltage is lower than AC175V 2 Wiring terminal 4V is loosened or broken 3 4V is damaged please replace 4V 46 Zero crossing malfunction of outdoor unit U9 During cooling operat...

Страница 55: ...oard broken 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 No No No No No No Is malfunction eliminated Is malfunction eliminated Is malfunction eliminated Replace it with a temperature sensor with the same model Make the parts upright Is there sho...

Страница 56: ... is eliminated Reinsert the wiring terminal of indoor fan It s the malfunction of main board Replace a new main board that is of the same model It s the malfunction of main board Replace a new main board that is of the same model Replace a new main board that is of the same model It s the malfunction of main board Then check whether the voltage between terminal 2 and terminal 3 of the motor interf...

Страница 57: ...f the mainboard is defined abnormal Malfunction diagnosis process Start Is there jumper cap on the mainboard Is the jumper cap inserted correctly and tightly Replace the jumper cap with the same model Appearance of the jumper cap Assemble the jumper cap with the same model Insert the jumper cap tightly Is malfunction eliminated Is malfunction eliminated Is malfunction eliminated Replace the mainbo...

Страница 58: ...e the compressor Replace the mainboard with the same model End Is the supply voltage too low with overload Is the indoor outdoor heat exchanger dirty or are the air inlet and outlet blocked The fan is abnormal Fan speed is too low or fan doesnt rotate Measure the current of live wire on the main board with a clamp ampere meter Is the current higher than the value of the overcurrent protection Is t...

Страница 59: ...n 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 diagram Match correctly according to product specification Replace communication cord Replace ODU s main board Malfunction eliminated Malfunction eliminated Malfunction eliminated Yes Yes Yes Yes No no N...

Страница 60: ...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 mainboard with the same model Yes Yes No ...

Страница 61: ...lfunction of the outdoor mainboard AP1 Replace outdoor mainboard Measure the voltage input with AC voltmeter see fig 30 Voltage within 180VAC 260VAC Shut down the power and wait 20 minutes or use DC voltmeter to measure the voltage on the two ends of electrolytic capacitor until the voltage is lower than 20V Check the connection of reactor and connection wire If the wiring of reactor L is normal R...

Страница 62: ...load of unit is heavy If radiating of unit is good Malfunction diagnosis process N H5 H7 or P5 is displayed after turning on the unit Measure if the voltage input is within 180 265V with AC voltmeter see fig 30 The compressor is well connected with mainboard AP1 Heat exchanger is blocked with dirt Clean the heat exchanger to improve its performance Restart the unit Restart the unit Restart the uni...

Страница 63: ...mperature is higher than 53 Normal protection please use it after improving the outdoor ambient temperature Unit restarts normally Unit restarts normally If the radiating of indoor and outdoor unit is good Improve the radiating environment of unit clean the heat exchanger and remove surrounding obstacles If the indoor and outdoor fan are running normally Connect normally Adjust the connection Repl...

Страница 64: ...gh and low pressure of system is not balanced please start the unit after 3min If the compressor wire COMP UVW is well connected and connection sequence is correct Check the connection situation of outdoor mainboard AP1 and compressor COMP and the connect it according to wiring diagram If the refrigerant charging amount is too much Does the unit start up normally Charge the refrigerant according t...

Страница 65: ...n valve damaged If the refrigerant is leaked The compressor overload protection terminal is not connected well with the mainboard If the overload protector is damaged Heat exchange of unit is not good heat exchanger is dirty and unit radiating environment is bad Too much load of the system causes high temperature of compressor after working for a long time Malfunction of discharge temperature sens...

Страница 66: ...anual Compressor overload protection terminal is not connected well with the mainboard reconnect them correctly Heat exchange of unit is not good heat exchanger is dirty and unit radiating environment is bad improve the radiating environment and clean the heat exchanger Too much load of the system causes high temperature of compressor after working for a long time decrease the load for operation I...

Страница 67: ...y before malfunction Check built in wiring of indoor and outdoor unit If the wiring is damaged Replace the wire Check the malfunction type with communication malfunction detector Malfunction of outdoor communication circuit Replace outdoor mainboard AP1 Replace indoor mainboard AP2 Is the malfunction eliminated Is the malfunction eliminated End Check the connection wire according to the wiring dia...

Страница 68: ...itor of power DC 180V 380V Test 5 Two ends of diode D15 D15 IPM modular 15V power supply DC 14 5V 15 6V Test 6 Two ends of electrolytic capacitor C715 C715 12V power supply DC 12V 13V Test 7 Two ends of electrolytic capacitor C710 C710 5V power supply DC 5V Test 8 Two ends of electrolytic capacitor C226 C226 3 3V power supply DC 3 3V Test 9 Two ends of chip capacitor C912 C912 17V power supply DC ...

Страница 69: ...ltage 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 250VAC Shut down the power and repair the power supply to restore the range 210VAC 250VAC power on and restart the unit If the fault is eliminated Shut down the power and wait 20 mi nutes or use DC voltmeter to measure the volt...

Страница 70: ... wires of compressor according to the electric wiring diagram and then turn on the unit Check the connection between the control board and the compressor by referring to the electric wiring diagram Check whether wires of compressor UVW are connected correctly Measure the resistance value among three terminals UVW of compressor with a resistance measuring meter Whether the resistance value of three...

Страница 71: ...eck if fan terminal OFAN is connected well 2 Test if resistance value of any two terminals is less than 1k with ohmic meter If the indoor and outdoor fan work well After the unit de energized for 20min Replace control board AP1 If the radiating of outdoor and indoor unit is well Improve the radiating environment of unit Replace outdoor fan Y Replace fan capacitor C1 Anti high temperature overload ...

Страница 72: ...UVW is well connected and connection sequence is correct Replace control board AP1 Replace the compressor If malfunction is removed If the stop time of compressor is more than 3min No If the stop time is not enough and the high and low pressure of system is not balance please start it after 3min Improve the connection situation of control board AP1 and compressor COMP connect it with wiring diagra...

Страница 73: ...mally If the stop time of compressor is more than 3min Synchronism after energize the unit and start it Connect wire well Synchronism occurred during operation Replace control board AP1 If the radiating of unit is well Remove malfunction Improve the radiating of unit clean heat exchanger and increase ventilation Replace fan capacitor C1 Replace outdoor fan Yes No No No Yes Yes No Replace control b...

Страница 74: ...agram Replace EKV coil of electron expansion valve If the wiring terminal FA of electron expansion is well connected Remove malfunction The resistance value of first 4 l ead foot an d th e fifth lead foot is similar less than 100 After the unit de energized for 20min Remove malfunction Yes No No No If the overload protector SAT is well connected No Under ambient temperature test the resistance of ...

Страница 75: ...ommunication circuit of outdoor unit Problem of communication circuit Check built in wiring of indoor and outdoor unit Connection correct Malfunction of circuit is detected with control board AP1 voltage Check connection wire of indoor and outdoor unit with circuit diagram Check connection wire of indoor and outdoor unit with circuit diagram If the unit is operation normal before malfunction Yes N...

Страница 76: ...er jumping Outdoor unit malfunction Test voltage value with Test 13 position in diagram with voltage meter Number jumping Test voltage value with Test 11 position in diagram with voltage meter Number jumping Test voltage value with Test 12 position in diagram with voltage meter Yes Yes Yes Yes Number jumping The circuit of outdoor unit communication is normal Yes No No No N End No ...

Страница 77: ...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 Poor Cooling Heating for Air Conditioner 3 Horizontal Louver Cant Swing Possible Causes Discriminating Method Air conditioner Status Troubleshooting No power supply or poor connection for power plug A...

Страница 78: ... 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 method air conditioner status Troubleshooting Wrong wire connection or poor connection Check the wiring status according to circuit diagram Connect wires according to wiring diagram to make sure all w...

Страница 79: ...76 Installation and Maintenance Service Manual 10 Exploded View and Parts List 10 1 Indoor Unit 42 The component picture is only for reference please refer to the actual product ...

Страница 80: ... 15012466 1 19 Connecting pipe clamp 2611216401 2611216401 2611216401 1 20 Drainage Hose 05230014 05230014 05230014 1 21 Motor Press Plate 26112360 26112360 26112360 1 22 Electric Box Assy 10000204264 10000204262 10000204263 1 23 Detecting Plate 30110140 30110140 30110140 1 24 Main Board 30138000611 30138000611 30138000611 1 25 Jumper 4202021916 4202021916 4202021919 1 26 Shield Cover of Electric ...

Страница 81: ...78 Installation and Maintenance Service Manual 10 2 Outdoor Unit KW09HUCA4DO KW12HUCA4DO 10 25 The component picture is only for reference please refer to the actual product ...

Страница 82: ...alve 1 2 0710307901 0710307901 1 16 4 Way Valve Assy 03073360 03073225 1 17 Magnet Coil 4300008301 4300008301 1 18 Capillary Sub assy 03000600305 03163311 1 19 Wiring Clamp 26115004 26115004 1 20 Condenser Assy 01100200318 01163936 1 21 Rear Grill 0147306001 0147306001 1 22 Electric Expand Valve Fitting 4300876704 4300876704 1 23 Stationary Barrier 01703179 01703179 1 24 Electronic Expansion Valve...

Страница 83: ...80 Installation and Maintenance Service Manual KW18HUCA4DO The component picture is only for reference please refer to the actual product ...

Страница 84: ...ort Assy 01705038 1 13 Condenser Support Plate 01175092 1 14 Clapboard Sub Assy 01235091 1 15 Condenser Assy 01100200326 1 16 Rear Grill 01475013 1 17 Wiring Clamp 26115004 1 18 Temperature Sensor 39000072 1 19 Right Side Plate 0130504402P 1 20 Handle Assy 02113109 1 21 Cut off Valve 07130239 1 22 Valve Support Sub Assy 0170506101P 1 23 Valve Support Block 26113017 1 24 Electronic Expansion Valve ...

Страница 85: ...ution discharge the refrigerant completely before removal Procedure Steps 1 Remove filter sub assy 2 Remove panel a a b c panel clasp Open the panel Remove 3 screws on sealing cover of panel and display with screwdriver screw screw screw Remove clasps on filter Remove filter sub assy with hand filter sub assy ...

Страница 86: ... off power hold both ends of horizontal louver with hand and then draw it out horizontally Remove right end at first Hold the right end of horizontal louver push the connection rod with thumb to sperate the connection rod and horizontal louver Remove hinges at both sides of panel to separate panel and front case and then remove the panel horizontal louver Procedure Steps ...

Страница 87: ...e left end and then install the right end After installation re energize the unit until the horizontal louver is reset After that you can operate the unit c d Remove the left end Hold the end of connection rod with left hand hold the horizontal louver with right hand to separate connection rod and horizontal louver Remove the horizontal louver along the axile center direction screws Procedure Step...

Страница 88: ...w cover with screwdriver Pull out two butt terminals on electric box and then take out connection wire of butt terminal connection wire of inspection board and wire of temperature sensor from the wire groove screw cover screw wire groove clasps butt terminal j Open 4 clasps at left middle and right side of front case with hand Procedure Steps ...

Страница 89: ...ws with screws pull out the indoor tube temperature sensor with hand and then cut off the tileline with scissors Pull out the power plug from motor and stepping motor Take out the electric box shielding cover sub assy shielding cover sub assy of electric box temperature sensor earthing screw earthing screw Procedure Steps ...

Страница 90: ...e groove of electric box with hand Remove screw from press plate of connection pipe with screwdriver Remove press plate of connection pipe with hand to separate it from the bottom case press plate of connection pipe Remove 2 screws at the connection position of evaporator and bottom case with screwdriver evaporator screws wire groove screw screw ...

Страница 91: ... of evaporator with hand connection pipe Lift up the left end of evaporator with hand and then take out the evaporator evaporator Remove crank connection rod Remove 2 screws fixing swing motor cover with screwdriver screws crank connection rod 6 Remove swing blade Procedure Steps ...

Страница 92: ...ess plate motor press plate Take out cross flow blade and motor cross flow blade motor Pull out the shaft rubber cushion block with hand shaft rubber cushion block Remove swing motor sub assy Take out swing connection rod to separate it from the swing blade swing connection rod swing motor sub assy 7 Remove cross flow blade and motor Procedure Steps ...

Страница 93: ...e left drive box with screwdriver Take out right drive box Remove 3 screws fixing left drive box with screwdriver Take out the left drive box left drive box right drive box screws screws a Remove the left side cover plate of front case cover plate 8 Remove drive box Procedure Steps ...

Страница 94: ...1 Remove top cover cable cross plate sub assy valve cover panel grille Remove the screws connecting top cover left and right side plate as well as panel to remove the top cover Remove the screws fixing panel to remove the panel Remove the screws connecting panel grille and panel loosen the clamp to remove the panel grille Remove the screws connecting cable cross plate sub assy and right side plate...

Страница 95: ...ing left side plate and condenser support boa rd to remove the left side plate Remove the screws fixing right side plate and valve support to remove the right side plate Remove the screw nut fixing cross fan blade remove the gasket and spring cushion to remove the cross fan blade left side plate cross fan blade right side plate Steps Procedure ...

Страница 96: ...off the wiring terminal lift to remove the electric box assy Remove the four tapping screws fixing motor pull out the contact tag of motor wiring to remove the motor Remove the two tapping screws fixing motor support and chassis lift to remove the motor support Remove the screws fixing electric reactor to remove the electric reactor electric box assy electric box cove r electric reactor motor supp...

Страница 97: ...flash vaporizer assy Remove the screws connecting mid isolation board chassis and condenser assy to remove the mid isolation Welding cut the spot weld of four way valve assy compressor air suction discharging valve and condenser pipe outlet lift to remove the four way valve assy Note release the refrigerant before welding cutting mid isolation board four way valve assy flash vaporizer assy Steps P...

Страница 98: ...the three feet screwnuts fixing compressor to remove the compressor Remove screws connecting condenser assy and chassis to remove the chassis sub assy Remove screws connecting condenser assy and chassis to remove the condenser assy Remove the screws fixing big and small valve to remove the valves condenser assy small valve big valve Steps Procedure ...

Страница 99: ...r fixing the handle pull the handle up ward to remove it Remove the screws connecting the top panel with the front panel and left right side plate and then remove the top panel 3 Remove front side panel front side panel Loosen the screws connecting the front side panel and chassis Remove the front side panel 18K Steps Procedure ...

Страница 100: ...panel Twist off the screws connecting the grille and panel and then remove the grille 5 Remove right side plate right side plate Twist off the screws connecting the right side plate and chassis valve support and condenser and then remove the right side plate 6 Remove axial flow blade axial flow blade Twist off the nuts on blade with wrench and then remove the axial flow blade Steps Procedure ...

Страница 101: ... pull out the wiring terminal pull it upwards to remove the electric box electric box fireproofing Twist off the screws on electric box fireproofing with screwdriver and then remove the electric box fireproofing 8 Remove motor motor Twist off the tapping screws fixing the motor pull out the pin of leading wire for motor and then remove the motor Steps Procedure ...

Страница 102: ...or support Twist off the screws connecting isolation sheet and end plate of condenser and chassis and then remove the isolation sheet 11 Remove 4 way valve 10 Remove isolation sheet isolation sheet 4 way valve Unsolder the pipeline between compressor condenser gas and liquid valve and then remove the 4 way valve note release all refrigerant before unsoldering Steps Procedure ...

Страница 103: ...int wrap the gas valve with wet cloth completely to avoid the damage to valve and release all refrigerant completely at first Unsolder the soldering joint between liquid valve and connection pipe of liquid valve and then remove the liquid valve Twist off the screws connecting valve support and chassis and then remove the valve support 14 Remove compressor compressor 13 Remove valve support valve s...

Страница 104: ... side plate left side plate Twist off the screws connecting the left side plate and chassis with screwdriver and then remove the left side plate Pull it upwards to separate the chassis and condenser 16 Remove chassis and condenser chassis condenser Steps Procedure ...

Страница 105: ...2 24 84 85 84 2 29 68 68 20 77 77 25 86 86 30 Appendix 2 Configuration of Connection Pipe 1 Standard length of connection pipe More details please refer to the specifications 2 Min length of connection pipe is 3m 3 Max length of connection pipe and max high difference More details please refer to the specifications 4 The additional refrigerant oil and refrigerant charging required after prolonging...

Страница 106: ...lowing 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 prevent the burrs from getting into the pipe C Put on suitable insulating pipe D Put on the union nut Remove the union nut on the indoor connection pipe and outdoor valve install the union nut on the ...

Страница 107: ...66 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 2 064 116 0 642 0 49 02 39 8 297 78 1 997 117 0 625 1 46 6 40 7 967 79 1 933 118 0 608 2 44 31 41 7 653 80 1 871 119 0 592 3 42 14 42 7 352 81 1 811 120 0 577 4 40 09 43 7 065 82 1 754 121 0 561 5 38 15 44...

Страница 108: ...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 2 663 117 0 833 1 62 13 40 10 62 79 2 577 118 0 811 2 59 08 41 10 2 80 2 495 119 0 77 3 56 19 42 9 803 81 2 415 120 0 769 4 53 46 43 9 42 82 2 339 121 0 746 5 50 87 44 9 054 83 2 265 122 0 729 6 48 42 45...

Страница 109: ...5 23 53 74 62 11 32 101 3 22 15 362 9 24 51 41 63 10 93 102 3 129 14 342 8 25 49 19 64 10 54 103 3 04 13 323 9 26 47 08 65 10 18 104 2 955 12 306 2 27 45 07 66 9 827 105 2 872 11 289 6 28 43 16 67 9 489 106 2 792 10 274 29 41 34 68 9 165 107 2 715 9 259 3 30 39 61 69 8 854 108 2 64 8 245 6 31 37 96 70 8 555 109 2 568 7 232 6 32 36 38 71 8 268 110 2 498 6 220 5 33 34 88 72 7 991 111 2 431 5 209 34 ...

Страница 110: ...JF00304204 ...

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