Lennox LNINV2610 Service Manual Download Page 18 | Manualshive

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Summary of Contents for LNINV2610

Page 1: ...Service Manual...

Page 2: ...8QLW 5HIULJHUDQW 6 VWHP LDJUDP OHFWULFDO 3DUW LULQJ LDJUDP 3 3ULQWHG LDJUDP XQFWLRQ DQG RQWURO 5HPRWH RQWUROOHU QWURGXFWLRQ ULHI HVFULSWLRQ RI 0RGHV DQG XQFWLRQV 3DUW QVWDOODWLRQ DQG 0DLQWHQDQFH 1RWHV...

Page 3: ...LPSO WKH 0DLQ 3DUW SORGHG 9LHZ DQG 3DUWV LVW QGRRU 8QLW 2XWGRRU 8QLW 5HPRYDO 3URFHGXUH 5HPRYDO 3URFHGXUH RI QGRRU 8QLW 5HPRYDO 3URFHGXUH RI 2XWGRRU 8QLW SSHQGL SSHQGL 5HIHUHQFH 6KHHW RI HOVLXV DQG DKU...

Page 4: ...7HFKQLFDO QIRUPDWLRQ 6HUYLFH 0DQXDO 6XPPDU 3DUW 7HFKQLFDO QIRUPDWLRQ QGRRU 8QLW 1 19 1 19 2XWGRRU 8QLW 1 19 1 19 1 5HPRWH RQWUROOHU...

Page 5: ...63 SSOLFDWLRQ UHD P QGRRU 8QLW QGRRU 8QLW 0RGHO 1 19 QGRRU 8QLW 3URGXFW RGH 1 B DQ 7 SH URVV RZ DQ LDPHWHU HQJWK PP RROLQJ 6SHHG 6 0 6 U PLQ HDWLQJ 6SHHG 6 0 6 U PLQ DQ 0RWRU 3RZHU 2XWSXW DQ 0RWRU 5 D...

Page 6: ...PP RQGHQVHU 5RZV Q DS PP RQGHQVHU RLO HQJWK PP DQ 0RWRU 6SHHG USP DQ 0RWRU 3RZHU 2XWSXW DQ 0RWRU 5 DQ 0RWRU DSDFLWRU 2XWGRRU 8QLW LU ORZ 9ROXPH P K DQ 7 SH LDO RZ DQ LDPHWHU PP HIURVWLQJ 0HWKRG XWRPD...

Page 7: ...OXPH K 5 23 6 5 63 SSOLFDWLRQ UHD P QGRRU 8QLW QGRRU 8QLW 0RGHO 1 19 QGRRU 8QLW 3URGXFW RGH 1 B DQ 7 SH URVV RZ DQ LDPHWHU HQJWK PP RROLQJ 6SHHG 6 0 6 U PLQ HDWLQJ 6SHHG 6 0 6 U PLQ DQ 0RWRU 3RZHU 2XW...

Page 8: ...H LDPHWHU PP RQGHQVHU 5RZV Q DS PP RQGHQVHU RLO HQJWK PP DQ 0RWRU 6SHHG USP DQ 0RWRU 3RZHU 2XWSXW DQ 0RWRU 5 DQ 0RWRU DSDFLWRU 2XWGRRU 8QLW LU ORZ 9ROXPH P K DQ 7 SH LDO RZ DQ LDPHWHU PP HIURVWLQJ 0HW...

Page 9: ...DB35 C WB24 C Indoor air flow Super High Pipe length 7 5m Conditions Indoor DB20 C WB15 C Outdoor DB7 C WB6 C Indoor air flow Super High Pipe length 7 5m Compressor speed rps Compressor speed rps RROL...

Page 10: ...XWGRRU XQLW RPSUHVVRU UHYROXWLRQ USV QGRRU 2XWGRRU 3 03D 7 7 a WR WR 6XSHU LJK LJK a WR WR 6XSHU LJK LJK 5DWHG KHDWLQJ FRQGLWLRQ 0RGHO 3UHVVXUH RI JDV SLSH FRQQHFWLQJ LQGRRU DQG RXWGRRU XQLW QOHW DQG...

Page 11: ...7HFKQLFDO QIRUPDWLRQ 6HUYLFH 0DQXDO 2XWOLQH LPHQVLRQ LDJUDP QGRRU 8QLW 542 43 43 143 80 131 172 55 55 8QLW PP...

Page 12: ...7HFKQLFDO QIRUPDWLRQ 6HUYLFH 0DQXDO 2XWGRRU 8QLW 8QLW PP 1 19 1 19 8QLW PP...

Page 13: ...P LDJUDP RQQHFWLRQ SLSH VSHFL FDWLRQ LTXLG SLSH PP DV SLSH PP Indoor unit Outdoor unit COOLING HEATING 4 Way valve Discharge Suction Heat exchanger evaporator Heat exchanger condenser Valve Valve Liqu...

Page 14: ...2 2UDQJH 1RWH XPSHU FDS LV XVHG WR GHWHUPLQH IDQ VSHHG DQG WKH VZLQJ DQJOH RI KRUL RQWDO ORYHU IRU WKLV PRGHO L1 PE XT1 W1 BU W3 BN N 1 OUTDOOR UNIT 2 3 COM OUT W4 YEGN N W2 BK EVAPORATOR BU YEGN BN...

Page 15: ...1 COMP HEATER EH1 SAT 0 RT3 RT2 0 RT1 0 YEGN BU PE PE W3 E COMU AC L1 N1 OVC COMP XT1 N 1 2 3 L1 W2 W4 W1 L1 W12 RD CN2 W9BU N3 N2 COMP YEGN E U W V L2 L2 L2 W7 W6 W5 PE W8 COMP W COMP V COMP U BU RD...

Page 16: ...UIDFH RI LQGRRU OLYH ZLUH DQ FDSDFLWRU QWHUIDFH RI RXWGRRU OLYH ZLUH 1HXWUDO LUH 1HXWUDO LUH RI HDOWK XQFWLRQ RQWURO LQWHUIDFH RI 3 PRWRU XWR EXWWRQ QWHUIDFH RI IDQ IHHGEDFN 8S GRZQ VZLQJ HIW 5LJKW LU...

Page 17: ...UORDG WHPSHUDWXUH VHQVRU OHFWURQLF H SDQVLRQ YDOYH RPPXQLFDWLRQ LQWHUIDFH 1HXWUDO ZLUH FRPPXQLFDWLRQ FLUFXLW 1HXWUDO ZLUH RXWSXW RI OWHULQJ ERDUG LYH ZLUH RXWSXW RI OWHULQJ ERDUG QWHUIDFH RI ZD YDOYH...

Page 18: ...IDFH RI HOHFWULF UHDFWRU 1HXWUDO ZLUH RI HOHFWULF KHDWHU RI FKDVVLV LYH ZLUH RI ZD YDOYH 7HPS VHQVRU QSXW RI OLYH ZLUH RI SRZHU QWHUIDFH RI HOHFWULF UHDFWRU 1HXWUDO ZLUH RI HOHFWULF KHDWHU RI FRPSUHVV...

Page 19: ...F Button X FAN Button TEMP Button LIGHT Button SLEEP Button CLOCK Button TURBO Button Button 2 6 8 3 9 10 7 5 12 11 4 1 Operation mode Temp display type 21 2 XWWRQ 3UHVV WKLV EXWWRQ FDQ WXUQ RQ RU WXU...

Page 20: ...DQJH IURP UHPRWH FRQWUROOHU a DQ VSHHG DXWR ORZ VSHHG PHGLXP VSHHG KLJK VSHHG RU XWWRQ 3UHVV RU EXWWRQ RQFH LQFUHDVH RU GHFUHDVH VHW WHPSHUDWXUH ROGLQJ RU EXWWRQ V ODWHU VHW WHPSHUDWXUH RQ UHPRWH FRQW...

Page 21: ...H WKH DLU GXFW XULQJ IDQ RSHUDWLRQ SUHVV 1 EXWWRQ WR WXUQ RII IDQ IXQFWLRQ QGRRU IDQ ZLOO VWRS RSHUDWLRQ LPPHGLDWHO 7 03 XWWRQ SUHVVLQJ WKLV EXWWRQ RX FDQ VHH LQGRRU VHW WHPSHUDWXUH LQGRRU DPELHQW WHP...

Page 22: ...U LV IX RU WKHUH V QR GLVSOD SOHDVH UHSODFH EDWWHULHV Signal sender Battery Cover of battery box Remove Reinstall IWHU SXWWLQJ WKURXJK WKH SRZHU SUHVV 21 2 EXWWRQ RQ UHPRWH FRQWUROOHU WR WXUQ RQ WKH D...

Page 23: ...RSHUDWLRQ 2 8 IDQ PRWRU VWRSV RSHUDWLRQ ZLWK D GHOD RI V DQG 8 IDQ PRWRU RSHUDWHV DW VHW VSHHG F KHQ 7SUHVHW 7LQGRRU DPE 7LQGRRU VXSSOHPHQWDU 7SUHVHW WKH XQLW ZLOO PDLQWDLQ LWV SUHYLRXV UXQQLQJ VWDWXV...

Page 24: ...U SUHYHQWLRQ FRQGLWLRQV DQG ZLOO EH GLVSOD HG DW WHPSHUDWXUH GLVSOD DUHD RQ WKH GLVSOD SDQHO HIURVW IUHTXHQF LV 3URWHFWLRQ ROG DLU SUHYHQWLRQ 7KH XQLW LV VWDUWHG XQGHU KHDWLQJ PRGH WKH FRPSUHVVRU LV 2...

Page 25: ...VLJQDOV IRU GXUDWLYH PLQXWHV FRPPXQLFDWLRQ IDXOW FDQ EH MXVWL HG DQG WKH ZKROH V VWHP ZLOO VWRS 0RGXOH SURWHFWLRQ 8QGHU PRGXOH SURWHFWLRQ PRGH WKH FRPSUHVVRU ZLOO VWRS KHQ WKH FRPSUHVVRU UHPDLQV DW V...

Page 26: ...DXWRPDWLF UXQQLQJ VWDWH E SUHVVLQJ WKH EXWWRQ VZLQJ RQ DQG OLJKW RQ DQG WKH PDLQ XQLW ZLOO UXQ EDVHG RQ WKH UHPRWH FRQWURO LI WKHUH LV UHPRWH FRQWURO RUGHU 8S DQG RZQ 6ZLQJLQJ RQWURO KHQ SRZHU RQ WKH...

Page 27: ...U VXSSO GR QRW KDYH GU LQJ IXQFWLRQ KHQ RX VWDUW WKH GU LQJ IXQFWLRQ DIWHU VWRS WKH PDFKLQH E SUHVVLQJ WKH VZLWFK EXWWRQ RX VKRXOG NHHS UXQQLQJ WKH LQQHU IDQV IRU PLQXWHV XQGHU ORZ DLU GDPSHU 7KH VZLQ...

Page 28: ...WKH XQLW DGHTXDWHO JURXQGHG 7KH JURXQGLQJ ZLUH FDQ W EH XVHG IRU RWKHU SXUSRVHV 0XVW DSSO SURWHFWLYH DFFHVVRULHV VXFK DV SURWHFWLYH ERDUGV FDEOH FURVV ORRS DQG ZLUH FOLS 7KH OLYH ZLUH QHXWUDO ZLUH DQ...

Page 29: ...HU PHDVXULQJ WDSH OHFWURSUREH OHFWURQLF OHDNDJH GHWHFWRU 3LSH SOLHUV SLSH FXWWHU 6FUHZ GULYHU 8QLYHUVDO PHWHU 9DFXXP SXPS 3LSH H SDQGHU SLSH EHQGHU PSDFW GULOO GULOO KHDG HOHFWULF GULOO 7RUTXH ZUHQFK...

Page 30: ...cm At least 15cm At least 250cm Space to the wall S p a c e t o t h e o b s t r u c t i o n r o o l f e h t o t e c a p S Space to the obstruction Drainage pipe Space to the wall Space to the obstruct...

Page 31: ...r 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 installati...

Page 32: ...HYLFH E D SURIHVVLRQDO 3OHDVH PDNH VXUH LW LV DOZD V JURXQGHG HIIHFWLYHO RWKHUZLVH LW PD FDXVH HOHFWULF VKRFN 7KH HOORZ JUHHQ ZLUH LQ DLU FRQGLWLRQHU LV JURXQGLQJ ZLUH ZKLFK FDQ W EH XVHG IRU RWKHU SX...

Page 33: ...7KH SRVLWLRQ RI SLSLQJ KROH VKRXOG EH D OLWWOH ORZHU WKDQ WKH ZDOO PRXQWHG IUDPH V VKRZ LQ LJ RQQHFW WKH 3LSH RI QGRRU 8QLW LP WKH SLSH MRLQW DW WKH FRUUHVSRQGLQJ EHOOPRXWK V VKRZ LQ LJ 3UHWLJKWHQLQJ...

Page 34: ...Q KRVH ZLWK WKH EDQG V VKRZ LQ LJ 5HVHUYH D FHUWDLQ OHQJWK RI GUDLQ KRVH DQG SRZHU FRUG IRU LQVWDOODWLRQ ZKHQ ELQGLQJ WKHP KHQ ELQGLQJ WR D FHUWDLQ GHJUHH VHSDUDWH WKH LQGRRU SRZHU DQG WKHQ VHSDUDWH W...

Page 35: ...WKH VXSSRUW RI RXWGRRU XQLW RQ WKH VHOHFWHG ORFDWLRQ ZLWK H SDQVLRQ VFUHZV RQQHFW 2XWGRRU OHFWULF LUH 5HPRYH WKH ZLUH FOLS FRQQHFW WKH SRZHU FRQQHFWLRQ ZLUH WR WKH ZLULQJ WHUPLQDO DFFRUGLQJ WR WKH FR...

Page 36: ...FXXP 3XPS 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...

Page 37: ...k power supply circuit Power plug is not well plugged in and poor connection Check if the plug is properly plugged in and make the loose contact firm Fuse of controller burnt out The air condi tioner...

Page 38: ...heat insulation for the thick and thin pipes is good Heat insulation must also be provided for the joint andthe exposed part of the copper pipe Block of outdoor heat ex changer Clean the dust accumula...

Page 39: ...heat insulation for the thick and thin pipes is good Heat insulation must also be provided for the joint andthe exposed part of the copper pipe Block of outdoor heat ex changer Clean the dust accumula...

Page 40: ...r Drainage pipe blocked or broken Change drainage pipe Re wrap and make it tight Wrap of refrigerant pipe joint is not close enough Water leakage Change controller Wire loose or wrong connection In co...

Page 41: ...discharge protection overload 5 Overcurrent protection E5 OFF 3S and blink 5 times OFF 3S and blink 5 times During cooling and drying operation compressor and outdoor fan stop while indoor fan operate...

Page 42: ...nt temperature sensor is open short circuited F3 OFF 3S and blink 3 times OFF 3S and blink 6 times During cooling and drying operating compressor stops while indoor fan operates During heating operati...

Page 43: ...ring board XT if the voltage 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...

Page 44: ...tion analysis of capacitor 29 Malfunction of module temperature sensor circuit P7 OFF 3S and blink 18 times During cooling and drying operation compressor will stop while indoor fan will operate Durin...

Page 45: ...ontrol end 3 Fan motor is stalling 4 Motor malfunction 5 Malfunction of mainboard rev detecting circuit 38 Desynchro nizing of compressor H7 OFF 3S and blink 7 times During cooling and drying operatio...

Page 46: ...nstable 46 Malfunction of complete units current detection U5 OFF 3S and blink 13 times During cooling and drying operation the compressor will stop while indoor fan will operate During heating operat...

Page 47: ...icator has 3 kinds of display status and during blinking ON 0 5s and OFF 0 5s Operation Indicator Cool Indicator Heating Indicator Yellow Indicator Red Indicator Green Indicator 53 Normal communica ti...

Page 48: ...QVWDOODWLRQ DQG 0DLQWHQDQFH 6HUYLFH 0DQXDO...

Page 49: ...EOH FDXVHV LQVXI FLHQW RU WRR PXFK UHIULJUDQW EORFNDJH RI FDSLOODU DQG LQFUHDVH RI VXFWLRQ WHPS LPSURSHU UXQQLQJ RI FRPSUHVVRU EXUQLQJ LQ RU VWXFN RI EHDULQJ GDPDJH RI GLVFKDUJH YDOYH PDOIXQFWLRQ RI S...

Page 50: ...ault with the voltage testing circuit on control panel AP1 Replace the control panel AP1 Measure the AC voltage between terminalL andN on wiring board XT power supply Voltage within 210VAC 250VAC Shut...

Page 51: ...igh 5 Other conditions resulting in that the system pressure becomes too high The connection of capacitor C2 is loose Reconnect the capacitor C2 according to Electrical Wiring Diagram Then Restart the...

Page 52: ...erature protection Is outdoor ambient temperature higher than 53 20 minutes after the complete unit is powered off Is heat dissipation of the indoor unit and outdoor unit abnormal Normal protection pl...

Page 53: ...FRPSUHVVRU VWRSSLQJ HQRXJK DXOW GLDJQRVLV SURFHVV Y N Y N N Y Y N Power on the unit Is stop time of the compressor longer than 3 minutes Restart it up after 3 minutes Does startup fail Are the wires f...

Page 54: ...for the compressor connected correctly Is connection sequence right Is the connection made in clockwise direction Connect the wires correctly Replace the control panel AP1 If the fault is eliminated...

Page 55: ...0 minutes after the complete unit is powered off Is the terminal FA for the electronic expansion valve connected correctly Connect the wires correctly Resistances between the first four pins close to...

Page 56: ...e or short circuit Replace it as per the wiring diagram and reconnect the wires If the fault is eliminated Remove the PFC capacitor and measure resistance between the two terminals Is the resistance a...

Page 57: ...perate normally before the failure occurs The AP1 voltage detection circuit is at fault Check wiring inside of the indoor and outdoor units Are wires broken Check the communication circuit of the outd...

Page 58: ...QVWDOODWLRQ DQG 0DLQWHQDQFH 6HUYLFH 0DQXDO 1 2 3 33 38 6 13 14 15 17 18 19 20 21 22 23 24 25 31 34 35 36 37 29 26 27 28 16 5 4 8 7 12 9 10 11 32 30 39 40 41 42 SORGHG 9LHZ DQG 3DUWV LVW QGRRU 8QLW...

Page 59: ...6XSSRUW YDSRUDWRU VV 7HPS 6HQVRU 6OHHYLQJ 0RWRU 3UHVV 3ODWH DOO 0RXQWLQJ UDPH UDLQDJH RVH DQ 0RWRU RQQHFWLQJ SLSH FODPS 5XEEHU 3OXJ DWHU 7UD 6WHSSLQJ 0RWRU UDQN 6FUHZ RYHU LU RXYHU OHFWULF R 0DJQHWLF...

Page 60: ...QVWDOODWLRQ DQG 0DLQWHQDQFH 6HUYLFH 0DQXDO 2XWGRRU 8QLW 1 19 17 16 15 14 13 12 6 5 4 3 2 1 7 8 9 10 18 19 21 20 22 23 24 25 26 27 28 29 11...

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Page 62: ...QVWDOODWLRQ DQG 0DLQWHQDQFH 6HUYLFH 0DQXDO 1 19 11 13 12 14 17 18 19 20 15 21 22 24 25 23 29 28 27 26 16 1 2 3 4 5 6 7 8 9 10...

Page 63: ...VVRU DQG LWWLQJV D 9DOYH VV 5LJKW 6LGH 3ODWH 3 9DOYH 6XSSRUW 9DOYH XW RII 9DOYH LJ DQGOH 0DJQHW RLO 5HDFWRU DSLOODU 6XE DVV 5HDU ULOO 7HPS 6HQVRU 6OHHYLQJ RQGHQVHU VV 7RS RYHU 3ODWH ODSERDUG 6XE VV 0R...

Page 64: ...WLRQ GLVFKDUJH WKH UHIULJHUDQW FRPSOHWHO EHIRUH UHPRYDO 1 Remove the filter Open the panel Loosen the clasp of the filter Remove axile bush of horizontal louver Push the filter inward and then raise i...

Page 65: ...end the horizontal louver slightly to remove it 4 Remove electric box cover 2 3 Remove front panel Slide the rotor shaft out of the groove Remove the front panel rotor shaft front panel Remove the scr...

Page 66: ...ase Open the screw cap on the front case Remove the screws fixing the front case left Remove the electric box cover2 Loosen the left middle and right clasps screws Remove the front case middle right f...

Page 67: ...necting vertical louver with bottom case Disconnect the indoor pipe tempera ture sensor Remove the screw of the electric box Remove the screws at the joint of ground wire and evaporator clasps Remove...

Page 68: ...ic box Re move electric box cover Disconnect the connecting wire of the motor Disconnect the connecting wire of the step motor Remove the screw fixing the display Remove the display Remove the electri...

Page 69: ...te of the con necting pipe Remove the screw fixing the press plate of the connecting pipe Auxiliary Piping Pipe Clamp screw Pipe Clamp 1 2 9 Remove the evaporator Remove the 3 screws at the joint of t...

Page 70: ...ws fixing the step motor Remove the step motor 10 Remove cross flow blade and motor Heat Exchanger Step Motor 3 1 Remove the screws fixing the press plate of the motor Remove the motor Remove cross fl...

Page 71: ...0DLQWHQDQFH 6HUYLFH 0DQXDO Remove the screws at the joint of cross flow blade and motor Remove the motor O Gasket sub assy of Bearing Ring of Bearing Remove ring of bearing Cross Flow Fan Fan Motor 4...

Page 72: ...QG GLVFKDUJH WKH UHIULJHUDQW FRPSOHWHO EHIRUH UHPRYDO 2 handle 2 Remove top cover 1 Remove big handle top panel 1 Before disassembly Remove the connection screw fixing the big handle and then remove t...

Page 73: ...g the blade and then remove the axial flow blade Remove screws fixing electric box cover and then remove the electric box cover Cut off the tieline pull out all wiring terminals and remove all connect...

Page 74: ...ss should be as quickly as possible and keep wrapping cotton wet all the time Be sure not to burn out the lead out wire of compressor Remove the 4 tapping screws fixing the motor Pull out the lead out...

Page 75: ...gas valve and the air return pipe to remove the gas valve Remove the 2 screws fixing the liquid valve and unsolder the welding joint connecting the liquid valve to the Y type pipe to remove the liquid...

Page 76: ...move big handle top panel 1 Before disassembly Remove the connection screw fixing the big handle and then remove the handle Remove connection screws connecting the top cover plate with the front panel...

Page 77: ...move the electric box cover Cut off the tieline pull out all wiring terminals and remove all connection wires and then separate connection wires and electric box Remove screws connecting electric box...

Page 78: ...ss should be as quickly as possible and keep wrapping cotton wet all the time Be sure not to burn out the lead out wire of compressor Remove the 4 tapping screws fixing the motor Pull out the lead out...

Page 79: ...gas valve and the air return pipe to remove the gas valve Remove the 2 screws fixing the liquid valve and unsolder the welding joint connecting the liquid valve to the Y type pipe to remove the liquid...

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