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Gree GWH09UB-K3DNA4F, Service Manual

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Table of Contents

Service Manual

9. Maintenance

 ............................................................................................................69

9.1 Error Code List ...............................................................................................................69

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7URXEOHVKRRWLQJIRU1RUPDO0DOIXQFWLRQ

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11. Removal Procedure

 .....................................................................................113

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 ..........................................................................122

Appendix:

 ......................................................................................................................133

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Appendix 3: Pipe Expanding M

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Summary of Contents for GWH09UB-K3DNA4F

Page 1: ...GREE ELECTRIC APPLIANCES INC OF ZHUHAI Change for Life Service Manual Models GWH09UB K3DNA4F GWH12UB K3DNA4F GWH18UC K3DNA4F Refrigerant R410A ...

Page 2: ... PCB Printed Diagram 17 6 Function and Control 21 5HPRWH RQWUROOHU QWURGXFWLRQ 21 2SHUDWLRQ RI 6PDUW RQWURO 6PDUW 3KRQH 7DEOHW 3 RU UHH 27 2SHUDWLRQ RI 6PDUW RQWURO 6PDUW 3KRQH 7DEOHW 3 39 ULHI HVFULSWLRQ RI 0RGHV DQG XQFWLRQV 51 Part ė Installation and Maintenance 60 7 Notes for Installation and Maintenance 60 8 Installation 62 8 1 Installation Dimension Diagram 62 QVWDOODWLRQ 3DUWV FKHFNLQJ 64 8...

Page 3: ...J IRU 1RUPDO 0DOIXQFWLRQ 100 11 Removal Procedure 113 5HPRYDO 3URFHGXUH RI QGRRU 8QLW 113 5HPRYDO 3URFHGXUH RI 2XWGRRU 8QLW 122 Appendix 133 SSHQGL 5HIHUHQFH 6KHHW RI HOVLXV DQG DKUHQKHLW 133 SSHQGL RQ JXUDWLRQ RI RQQHFWLRQ 3LSH 133 Appendix 3 Pipe Expanding MHWKRG 134 SSHQGL LVW RI 5HVLVWDQFH IRU 7HPSHUDWXUH 6HQVRU 135 ...

Page 4: ...mation Service Manual 1 Summary Indoor Unit Outdoor Unit Remote Controller Part Ė Technical Information GWH18UC K3DNA4F O SAA1FB1 GWH09UB K3DNA4F I GWH12UB K3DNA4F I GWH18UC K3DNA4F I GWH09UB K3DNA4F O GWH12UB K3DNA4F O ...

Page 5: ...8 Indoor Unit Model GWH09UB K3DNA4F I 3URGXFW RGH 1 CB264N00602 2 CB264N00603 3 CB264N00604 Fan Type URVV ÀRZ LDPHWHU HQJWK mm Ɏ Fan Motor Cooling Speed SH H MH M ML L SL Q r min 1350 1127 1000 870 780 690 600 550 Fan Motor Heating Speed SH H MH M ML L SL Q r min 1350 1151 1074 1000 930 870 842 2XWSXW RI DQ 0RWRU W 10 Fan Motor RLA A 0 3 Fan Motor Capacitor ȝ QSXW RI HDWHU W YDSRUDWRU RUP OXPLQXP ...

Page 6: ...RLO HQJWK mm Fan Motor Speed rpm 780 2XWSXW RI DQ 0RWRU W 30 Fan Motor RLA A 0 24 Fan Motor Capacitor ȝ LU ORZ 9ROXPH RI 2XWGRRU 8QLW m3 K 2400 Fan Type LDO ÀRZ Fan Diameter mm Ɏ HIURVWLQJ 0HWKRG XWRPDWLF HIURVWLQJ Climate Type T1 Isolation I 0RLVWXUH 3URWHFWLRQ IP24 3HUPLVVLEOH FHVVLYH 2SHUDWLQJ 3UHVVXUH IRU WKH LVFKDUJH 6LGH MPa 4 3 3HUPLVVLEOH FHVVLYH 2SHUDWLQJ 3UHVVXUH IRU WKH 6XFWLRQ 6LGH MPa...

Page 7: ...tion Area m2 16 24 Indoor Unit Model GWH12UB K3DNA4F I 3URGXFW RGH 1 CB264N00702 2 CB264N00703 3 CB264N00704 Fan Type URVV ÀRZ LDPHWHU HQJWK mm Ɏ Fan Motor Cooling Speed SH H MH M ML L SL Q r min 1400 1185 1053 920 829 741 650 550 Fan Motor Heating Speed SH H MH M ML L SL Q r min 1400 1185 1119 1053 958 870 842 2XWSXW RI DQ 0RWRU W 10 Fan Motor RLA A 0 3 Fan Motor Capacitor ȝ QSXW RI HDWHU W YDSRU...

Page 8: ...RLO HQJWK mm Fan Motor Speed rpm 780 2XWSXW RI DQ 0RWRU W 30 Fan Motor RLA A 0 24 Fan Motor Capacitor ȝ LU ORZ 9ROXPH RI 2XWGRRU 8QLW m3 K 2400 Fan Type LDO ÀRZ Fan Diameter mm Ɏ HIURVWLQJ 0HWKRG XWRPDWLF HIURVWLQJ Climate Type T1 Isolation I 0RLVWXUH 3URWHFWLRQ IP24 3HUPLVVLEOH FHVVLYH 2SHUDWLQJ 3UHVVXUH IRU WKH LVFKDUJH 6LGH MPa 4 3 3HUPLVVLEOH FHVVLYH 2SHUDWLQJ 3UHVVXUH IRU WKH 6XFWLRQ 6LGH MPa...

Page 9: ...plication Area m2 23 34 Indoor Unit Model GWH18UC K3DNA4F I 3URGXFW RGH 1 CB264N00502 2 CB264N00503 3 CB264N00504 Fan Type URVV ÀRZ LDPHWHU HQJWK mm Ɏ Fan Motor Cooling Speed SH H MH M ML L SL Q r min 1350 1150 1050 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 2XWSXW RI DQ 0RWRU W 20 Fan Motor RLA A 0 44 Fan Motor Capacitor ȝ QSXW RI HDWHU W...

Page 10: ...RLO HQJWK mm Fan Motor Speed rpm 800 2XWSXW RI DQ 0RWRU W 60 Fan Motor RLA A 0 5 Fan Motor Capacitor ȝ LU ORZ 9ROXPH RI 2XWGRRU 8QLW m3 K 3200 Fan Type LDO ÀRZ Fan Diameter mm Ɏ HIURVWLQJ 0HWKRG XWRPDWLF HIURVWLQJ Climate Type T1 Isolation I 0RLVWXUH 3URWHFWLRQ IP24 3HUPLVVLEOH FHVVLYH 2SHUDWLQJ 3UHVVXUH IRU WKH LVFKDUJH 6LGH MPa 4 3 3HUPLVVLEOH FHVVLYH 2SHUDWLQJ 3UHVVXUH IRU WKH 6XFWLRQ 6LGH MPa ...

Page 11: ...ions Indoor DB27 C WB19 C Indoor air flow High Pipe length 5m Conditions Indoor DB20 C WB15 C Indoor air flow High Pipe length 5m Cooling Heating 0 1 2 3 4 5 6 7 8 9 10 0 20 40 60 80 100 120 Condition Indoor DB 27 C WB19 C Indoor air flow Turbo Pipe length 5m Voltage 230V Compressor Speed rps 0 1 2 3 4 5 6 7 8 0 20 40 60 80 100 120 Condition Indoor DB 20 C Indoor air flow Turbo Pipe length 5m Volt...

Page 12: ... Indoor DB20 C WB15 C Indoor air flow High Pipe length 5m Conditions Indoor DB27 C WB19 C Indoor air flow High Pipe length 5m Capacity ratio Outdoor temp C Outdoor temp C 32 34 36 38 40 42 44 46 54 48 50 52 100 105 95 90 85 80 75 70 65 60 55 50 Conditions Indoor DB27 C WB19 C Indoor air flow Super High Pipe length 5m 40 50 120 110 100 90 80 70 60 10 7 0 8 20 Capacity ratio 30 15 Conditions Indoor ...

Page 13: ...WOHW SLSH WHPSHUDWXUH RI KHDW H FKDQJHU Fan speed of LQGRRU XQLW Fan speed of RXWGRRU XQLW Compressor UHYROXWLRQ Hz Indoor 2XWGRRU P MPa T1 C T2 C 20 7 6 09K 12K 2 5 3 0 in 50 80 RXW a in 1 3 RXW a 7XUER 6XSUW LJK 56 20 15 7 6 18K 2 2 2 4 in 75 83 RXW a in 1 3 RXW a 6XSHU LJK LJK 75 Instruction 7 QOHW DQG RXWOHW SLSH WHPSHUDWXUH RI HYDSRUDWRU 7 QOHW DQG RXWOHW SLSH WHPSHUDWXUH RI FRQGHQVHU 3 3UHVV...

Page 14: ...chnical Information Service Manual 3 Outline Dimension Diagram 3 1 Indoor Unit 125 148 Φ55 Φ55 49 5 80 Φ55 Φ55 W 136 90 684 186 542 179 D H Unit mm Model W H D 09K 12K 860 305 170 18K 960 320 205 09K 12K 18K ...

Page 15: ...12 Technical Information Service Manual 3 2 Outdoor Unit 899 810 550 343 303 596 378 Unit mm Unit mm 965 892 700 396 560 341 963 18K 09K 12K ...

Page 16: ...DWLRQ LTXLG PP DV PP 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 ...

Page 17: ...QJOH RI KRUL RQWDO ORYHU IRU WKLV PRGHO 63610000224 GWH09UB K3DNA4F I GWH12UB K3DNA4F I 6 1 5 11 7 1 7 1 7 5 1 5 725 2 3 60 8 67 33 1 02725 7 5 7 0 0 5 7 5 7 1 1 6 7 02725 0 7 02725 1 02725 7 1 1 6 7 1 02725 1 7 7 216 2 5 20 3 3 78 0 3 1 287 225 81 7 1 3 9 325 725 8 7 8 1 2 7 50 1 1 20 287 3 803 3 0 1 2 5 63 63 1 02725 63 2 5 67 33 1 83 2 1 0 57 57 6 1625 5220 6 1625 5220 7 03 78 7 03 1 L L L 1 3 ...

Page 18: ...25 7 02725 67 33 1 6 1625 5220 7 03 6 1625 78 7 03 7 7 216 2 5 67 33 1 7 5 7 6 7 02725 83 2 1 1 02725 3 1 20 3 02725 5220 57 78 3 803 3 63 63 1 8 20 287 3 0 1 2 5 1 2 7 50 1 7 5 1 0 1 7 1 3 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 51 1 0 0 0 0 0 63610000222 ...

Page 19: ...Q VKHOO PRWRU JURXQG RQO 1 1 5 8 N 1 1 225 81 7 1 8 1 1 Ɣ 2XWGRRU 8QLW 7KHVH ZLULQJ GLDJUDPV DUH VXEMHFW WR FKDQJH ZLWKRXW QRWLFH SOHDVH UHIHU WR WKH RQH VXSSOLHG ZLWK WKH XQLW GWH18UC K3DNA4F O 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 9 35 17 5 8 7 2 5 1 3 1 7 03 6 16...

Page 20: ...UH IRU RXWGRRU XQLW 9 7XEH WHPSHUDWXUH VHQVRU 13 Up down swing 2 2 QWHUIDFH RI IXVH 6 QWHUIDFH RI MXPSHU cap 10 PELHQW WHPSHUDWXUH VHQVRU 14 Up down swing 1 3 QWHUIDFH RI OLYH ZLUH 7 Indoor fan motor 11 RPPXQLFDWLRQ LQWHUIDFH IRU UDGLR IUHTXHQF 15 Display interface 4 QWHUIDFH RI FRPPXQLFDWLRQ ZLUH IRU QHXWUDO ZLUH DQG OLYH ZLUH 8 Up down swing 3 12 QWHUIDFH RI OHIW ULJKW VZLQJ 09 12K ...

Page 21: ...wn swing 3 13 QWHUIDFH RI OHIW ULJKW swing 2 HDOWK LQWHUIDFH 6 QWHUIDFH RI FRPPXQLFDWLRQ ZLUH IRU QHXWUDO ZLUH DQG OLYH wire 10 7XEH WHPSHUDWXUH VHQVRU 14 Up down swing 2 3 QWHUIDFH RI IXVH 7 QWHUIDFH RI MXPSHU FDS 11 PELHQW WHPSHUDWXUH sensor 15 Up down swing 1 4 QWHUIDFH RI OLYH ZLUH 8 Interface of DC motor 12 RPPXQLFDWLRQ LQWHUIDFH IRU UDGLR IUHTXHQF 16 Display interface 18K ...

Page 22: ...19 Technical Information Service Manual Ɣ Top view Ɣ Bottom view 09K 12K 2 1 3 4 5 6 8 7 9 10 11 12 13 14 15 Outdoor Unit ...

Page 23: ...ressure 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 Ɣ Top view Ɣ Bottom view 18K ...

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Page 26: ...W VWDUW XS WKH XQLW no display stops at current position AUTO COOL FAN DRY HEAT Note Ɣ RU SUHYHQWLQJ FROG DLU DIWHU VWDUWLQJ XS KHDWLQJ PRGH LQGRRU XQLW ZLOO GHOD a PLQXWHV WR EORZ DLU DFWXDO GHOD WLPH LV GHSHQG RQ LQGRRU DPELHQW WHPSHUDWXUH Ɣ 6HW WHPSHUDWXUH UDQJH IURP UHPRWH FRQWUROOHU a 9 button 8QGHU VLPSOH VZLQJ PRGH SUHVV WKLV EXWWRQ FDQ WXUQ RQ GLVSOD LFRQ RU WXUQ RII QRW GLVSOD LFRQ XS GRZ...

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Page 61: ...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...

Page 62: ...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 ...

Page 63: ...e the unit adequately grounded The grounding wire can t 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 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 can t be pressed by ha...

Page 64: ...ing 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 Torque wrench open end wrench inner hexagon spanner 9 Pressure meter 12 Soldering appliance refrigerant container ...

Page 65: ...At least 15cm At least 50cm At least 50cm At least 30cm At least 300cm At least 200cm Space to the obstruction Space to the obstruction Space to the obstruction Space to the ceiling 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 ...

Page 66: ...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...

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Page 68: ...O PRXQWHG IUDPH V VKRZ LQ LJ 5 Connect the Pipe of Indoor Unit LP WKH SLSH MRLQW DW WKH FRUUHVSRQGLQJ EHOOPRXWK V VKRZ in Fig 5 3UHWLJKWHQLQJ WKH XQLRQ QXW ZLWK KDQG GMXVW WKH WRUTXH IRUFH E UHIHUULQJ WR WKH IROORZLQJ VKHHW 3ODFH WKH RSHQ HQG ZUHQFK RQ WKH SLSH MRLQW DQG SODFH WKH WRUTXH ZUHQFK RQ WKH XQLRQ QXW 7LJKWHQ WKH XQLRQ QXW ZLWK WRUTXH ZUHQFK V VKRZ LQ LJ UDS WKH LQGRRU SLSH DQG MRLQW RI ...

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Page 70: ...V VKRZ LQ LJ 6 Neaten the Pipes 7KH SLSHV VKRXOG EH SODFHG DORQJ WKH ZDOO EHQW UHDVRQDEO DQG KLGGHQ SRVVLEO 0LQ VHPLGLDPHWHU RI EHQGLQJ WKH SLSH LV 10cm I WKH RXWGRRU XQLW LV KLJKHU WKDQ WKH ZDOO KROH RX PXVW VHW D 8 VKDSHG FXUYH LQ WKH SLSH EHIRUH SLSH JRHV LQWR WKH URRP LQ RUGHU WR SUHYHQW UDLQ IURP JHWWLQJ LQWR WKH URRP V VKRZ LQ Fig 24 L WKH SRZHU FRQQHFWLRQ ZLUH DQG SRZHU FRUG ZLWK ZLUH FOLS ...

Page 71: ...city The water outlet can t be placed in water 1 Use Vacuum Pump 5HPRYH WKH YDOYH FDSV RQ WKH OLTXLG YDOYH DQG JDV YDOYH DQG WKH QXW RI UHIULJHUDQW FKDUJLQJ YHQW RQQHFW WKH FKDUJLQJ KRVH RI SLH RPHWHU WR WKH UHIULJHUDQW FKDUJLQJ YHQW RI JDV YDOYH DQG WKHQ FRQQHFW WKH RWKHU FKDUJLQJ KRVH WR WKH YDFXXP SXPS 2SHQ WKH SLH RPHWHU FRPSOHWHO DQG RSHUDWH IRU PLQ WR FKHFN LI WKH SUHVVXUH RI SLH RPHWHU UHPD...

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Page 76: ...tion 5HIHU WR WKH PDOIXQFWLRQ DQDO VLV 30 SURWHFWLRQ ORVV RI V QFKURQLVP SURWHFWLRQ DQG RYHUFXUUHQW SURWHFWLRQ RI SKDVH FXUUHQW IRU FRPSUHVVRU 39 PFC protection HC OFF 3S DQG EOLQN 14 times XULQJ FRROLQJ DQG GU LQJ RSHUDWLRQ FRPSUHVVRU ZLOO VWRS ZKLOH LQGRRU IDQ ZLOO RSHUDWH XULQJ KHDWLQJ RSHUDWLRQ WKH FRPSOHWH XQLW ZLOO VWRS operation 5HIHU WR WKH PDOIXQFWLRQ DQDO VLV 40 2XWGRRU fan motor PDOIXQF...

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Page 79: ... 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...

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Page 81: ...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...

Page 82: ...Manual 5 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 ...

Page 83: ...f 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 Replace outd...

Page 84: ... ORDG RI XQLW LV KHDY I UDGLDWLQJ RI XQLW LV JRRG 0DOIXQFWLRQ GLDJQRVLV SURFHVV 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 unit...

Page 85: ...emperature 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 Rep...

Page 86: ...igh 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 ...

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Page 88: ...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...

Page 89: ...cket Connect the plug correctly Check the connection wire between reactor mainboard and situation of connection If there is short circuit or the connection wire is loose Reconnect the wire or replace the connection wire according to the wiring diagram Check the surface of reactor coil If it is damaged Replace the reactor Power on and restart the unit Power on and restart the unit Replace outdoor m...

Page 90: ... 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 diag...

Page 91: ...F and G Electrolytic capacitor of power DC 180V 380V Test 5 Two ends of diode D15 30 PRGXODU 9 SRZHU VXSSO DC 14 5V 15 6V Test 6 Two ends of electrolytic capacitor C715 9 SRZHU VXSSO DC 12V 13V Test 7 Two ends of electrolytic capacitor C710 9 SRZHU VXSSO DC 5V Test 8 Two ends of electrolytic capacitor C226 9 SRZHU VXSSO DC 3 3V Test 9 7ZR HQGV RI FKLS FDSDFLWRU C912 9 SRZHU VXSSO DC 15V 18V Test 1...

Page 92: ...ing 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 voltage on the...

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Page 94: ...acitor C2 until the voltage is lower than 20V Replace the capacitor C2 Then energize and start the unit Replace the control panel AP1 Take corrective actions according to Technical Service Manual and then energize and start the unit If there is any abnormality described above Replace the control panel AP1 If the connection between AP1 and COMP is unsecure or the connection order is wrong Connect t...

Page 95: ...heck 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...

Page 96: ...P 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 diag...

Page 97: ...rmally 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 ...

Page 98: ...iagram 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...

Page 99: ... short circuit and replace it Y Re energize the unit and start it Cut the terminal of reactor test the resistance between two terminals of reactor with ohmic meter Replace the reactor Re energize the unit and start it Check the connection wire of reactor L of outdoor unit and PFC capacity If there is damaged short circuit Replace connection wire with circuit diagram Replace control board AP1 Yes Y...

Page 100: ...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...

Page 101: ...ber 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 ...

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Page 103: ...IRU details 0DOIXQFWLRQ RI FRPSUHVVRU RPSUHVVRU FDQ W RSHUDWH 5HIHU WR SRLQW RI PDLQWHQDQFH PHWKRG IRU details 9 3 Troubleshooting for Normal Malfunction 1 Air Conditioner Can t be Started Up 2 Poor Cooling Heating for Air Conditioner 3 Horizontal Louver Can t Swing 3RVVLEOH DXVHV LVFULPLQDWLQJ 0HWKRG LU FRQGLWLRQHU 6WDWXV 7URXEOHVKRRWLQJ 1R SRZHU VXSSO RU SRRU FRQQHFWLRQ IRU SRZHU SOXJ IWHU HQHUJ...

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Page 105: ...r Unit Caution discharge the refrigerant completely before removal Procedure Steps 5HPRYH OWHU VXE DVV 5HPRYH SDQHO a a b c panel clasp 2SHQ WKH SDQHO 5HPRYH VFUHZV RQ VHDOLQJ FRYHU RI SDQHO DQG GLVSOD ZLWK VFUHZGULYHU screw screw screw 5HPRYH FODVSV RQ OWHU 5HPRYH OWHU VXE DVV ZLWK KDQG OWHU VXE DVV ...

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Page 111: ... SLSH RI HYDSRUDWRU ZLWK KDQG connection pipe LIW XS WKH OHIW HQG RI HYDSRUDWRU ZLWK KDQG DQG WKHQ WDNH RXW WKH HYDSRUDWRU HYDSRUDWRU 5HPRYH FUDQN FRQQHFWLRQ URG 5HPRYH VFUHZV LQJ VZLQJ PRWRU FRYHU ZLWK VFUHZGULYHU screws FUDQN FRQQHFWLRQ URG 5HPRYH VZLQJ EODGH Procedure Steps ...

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Page 114: ...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...

Page 115: ...xing 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 ...

Page 116: ... 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 sup...

Page 117: ...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...

Page 118: ...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 ...

Page 119: ... cover up ward to remove it 2 1 1 1 Remove top panel Remove handle valve top panel top panel 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 panel and rear grill Remove the 2 screws connecting the grille and the panel and then remove the grille Steps Procedure ...

Page 120: ...and the motor support and then remove the panel 3 Remove left side plate and right side plate Remove the screws connecting the right side plate with the chassis the valve support and the electric box and then remove the right side plate assy Remove the screws connecting the left side plate and the chassis and then remove the left side plate assy panel rear grill right side plate leftsideplate Step...

Page 121: ...ng terminals and then pull the electric box upwards to remove it Remove the 4 tapping screws fixing the motor disconnect the leading wire insert of the motor and then remove the motor Remove the 2 tapping screws fixing the motor support and then pull the motor support upwards to remove it Remove the nuts fixing the blade and then remove the axial flow blade axial flow blade electric box Steps Proc...

Page 122: ...ponge carefully soundproof sponge 7 Remove Isolation sheet Remove the 3 screws fixing the isolation sheet and then remove the Isolation sheet Isolation sheet 8 Remov e 4 way valve assy Discharge the refrigerant completely unsolder the pipelines connecting the compressor and the condenser assy and then remove the 4 way valve assy 4 way valve assy Steps Procedure ...

Page 123: ... compressor Remove the screws connecting the support condenser and condenser assy and then remove the support condenser 9 Remov e compressor compressor 10 Remove condenser sub assy 1 support capillary sub assy 2 Remove the chassis sub assy and condenser sub assy condenser sub assy chassis sub assy Steps Procedure ...

Page 124: ...132 Installation and Maintenance Service Manual 2 Dissemble the chassis sub assy and condenser sub assy condenser sub assy chassis sub assy Steps Procedure ...

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