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Gree GWHD(42)NK3AO, Service Manual

The Gree GWHD(42)NK3AO Service Manual is available for free download on manualshive.com. This comprehensive manual provides detailed instructions on how to properly service and maintain your Gree GWHD(42)NK3AO product. Download the manual today to ensure optimal performance and longevity of your unit.

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Exploded Views and Parts List

53

7KHGDWDDERYHDUHVXEMHFWWRFKDQJHZLWKRXWQRWLFH

NO.

Description

Part Code

Qty

GWHD(28)NK3BO

Product  Code

CB228W0110

1

Front grill

22415002

1

2

Front Panel

01535008P

1

3

Drainage Plug

06813401

3

4

&KDVVLV6XEDVV\

01203942P

1

5

Drainage Connecter

06123401

1

6

&RPSUHVVRUDQG¿WWLQJV

00105036

1

7

Compressor Gasket

76710207

1

8

Gas-liquid Separator Assy

07225017

1

9

,QKDODWLRQ7XEH

03723455

1

10

Right Side Plate

01303194P

1

11

Valve support assy

07103066

1

12

Cut-off Valve

071302391

4

13

Cut-off Valve

07130239

4

14

Valve cover

20123029

1

15

Temperature Sensor

3900007303

1

16

Temperature Sensor

3900007302

1

17

Temperature Sensor

3900007301

1

18

Temperature Sensor

39000073

1

19

(OHFWULFH[SDQGYDOYH¿WWLQJ

4300008403

1

20

(OHFWULFH[SDQGYDOYH¿WWLQJ

4300008402

1

21

(OHFWULFH[SDQGYDOYH¿WWLQJ

4300008401

1

22

(OHFWULFH[SDQGYDOYH¿WWLQJ

43000084

1

23

Magnet Coil

4300040033

1

24

4-way Valve Assy

03123415

1

25

Wiring clamp

26115004

1

26

PFC induction

43120129

1

27

&ODSERDUGDVV\

01233116

1

28

Temperature Sensor

3900030901

1

29

Rear Grill

01473043

1

30

Condenser Assy

01113710

1

31

Top Cover

01255005P

1

32

0RWRU6XSSRUW6XE$VV\

0170512001

1

33

Condenser support plate

01173415

1

34

Left Side Plate

01305041P

1

35

left handle

26235401

1

36

,QVXODWHGERDUGFRYHURIHOHFWULFER[

20113003

1

37

(OHFWULFER[¿UHSURR¿QJ

01413148

1

38

Electric Box Assy

02603372

1

39

&RQQHFWLQJ&DEOH

400205405

1

40

Fan Motor

1501506303

1

41

Axial Flow Fan

10335008

1

Summary of Contents for GWHD(42)NK3AO

Page 1: ...GREE ELECTRIC APPLIANCES INC OF ZHUHAI MODEL GWHD 14 NK3BO GWHD 18 NK3DO GWHD 24 NK3DO GWHD 24 NK3EO GWHD 28 NK3BO GWHD 36 NK3AO GWHD 42 NK3AO Refrigerant R410A Service Manual Change for Life...

Page 2: ...nted Circuit Board 16 6 Description of Each Control Operation 20 7 Installation Manual 26 7 1 Electrical Connections 26 7 2 Installing the Outdoor Unit 29 7 3 Installation Dimension Diagram 30 7 4 Che...

Page 3: ...Summary and Features 1 Summary and Features GWHD 14 NK3BO GWHD 18 NK3DO GWHD 36 NK3AO GWHD 42 NK3AO GWHD 24 NK3DO GWHD 24 NK3EO GWHD 28 NK3BO...

Page 4: ...or repair work shall be performed by your dea ler or a specialized subcontractor as there is the risk of fire electric shock explosion or injury Have all wiring connected tightly Loose connection may...

Page 5: ...Motor Speed rpm H M L 880 700 500 880 700 500 Output of Fan Motor W 60 60 Fan Motor RLA A 0 56 0 56 DQ 0RWRU DSDFLWRU 4 4 Air Flow Volume of Outdoor Unit 2600 2300 1600 2600 2300 1600 Fan Type Axial...

Page 6: ...X44X559 800X44X559 Fan Motor Speed rpm H M L 880 700 500 880 700 500 Output of Fan Motor W 60 60 Fan Motor RLA A 0 56 0 56 DQ 0RWRU DSDFLWRU 4 4 Air Flow Volume of Outdoor Unit 2600 2300 1600 2600 230...

Page 7: ...890X44X660 890X44X660 890X44X660 Fan Motor Speed rpm H M L 690 600 500 690 600 500 690 600 500 Output of Fan Motor W 60 60 60 Fan Motor RLA A 0 6 0 6 0 6 DQ 0RWRU DSDFLWRU 3 5 3 5 3 5 Air Flow Volume...

Page 8: ...dth L 818 7X44X813 994 45X38 1X1056 Fan Motor Speed rpm H M L 860 760 540 840 620 520 Output of Fan Motor W 60 140 Fan Motor RLA A 0 56 0 96 DQ 0RWRU DSDFLWRU 3 7 Air Flow Volume of Outdoor Unit 3000...

Page 9: ...onstruction Views 7 3 Construction Views 303 838 550 892 341 396 963 560 903 378 596 354 700 368 1 Models GWHD 14 NK3BO GWHD 18 NK3DO 2 Models GWHD 24 NK3DO GWHD 24 NK3EO GWHD 28 NK3BO Unit mm Unit mm...

Page 10: ...Construction Views 8 3 Model GWHD 36 NK3AO 950 341 412 1022 572 840 378 Unit mm 4 Model GWHD 42 NK3AO 1015 360 440 1087 631 1103 401 Unit mm...

Page 11: ...B3 B2 A2 A3 A1 A unit electronic expansion valve B1 B unit electronic expansion valve C1 C unit electronic expansion valve D1 D unit electronic expansion valve A2 A unit gas pipe temperature sensor B2...

Page 12: ...QG JR WR WKH KHDW H FKDQJHU RI HDFK LQGRRU XQLW WR H FKDQJH KHDW ZLWK WKH DLU ZKLFK QHHGV WR EH FRQGLWLRQHG RQVHTXHQWO WKH UHIULJHUDQW OLTXLG EHFRPH ORZ WHPSHUDWXUH ORZ SUHVVXUH refrigerant gas again...

Page 13: ...A YA QB YB CONNECTOR OVERLOAD PROTECTOR M FAN MOTOR EKV FB 5 5 BK FB YEGN PE WH RD BU BN BK C1 OFAN1 PE PE PE EH COMPRESSOR BAND HEATER 16RD 15RD 3 1 HEAT C 2BN LX1 2 OG LX1 1 WH L FA EKV WH 5 5 FA RD...

Page 14: ...11BN BK WH BU BN BU X1 N1 N1 Tem Sensor LiquidValve Tem Sensor GasValve 4V HPS N1 1BN BK BU BN WH BU BK RD BN C1 AC L2 AC L1 N2 W U V 14YE 13BU 15RD 16YEGN 18WH OVC COMP FANMOTOR 20YE 19BU BN BU BK C...

Page 15: ...er Please don t touch any terminal when the voltage WARNING 0 0 0 0 0 0 0 0 0 0 0 L FILTER N LINE LOAD L2 L1 L3 L4 L N RD YE BU LX2 2 LX2 1 YE RD BK WH BU BN BU N1 TEM SENSOR LiquidValve TEM SENSOR Ga...

Page 16: ...AP XT1 XT2 XT3 XT4 XT5 C WH BK YE BU RD BN 1 3 5 7 1 2 3 4 5 6 LP CAPACITOR FOR FAN MOTOR COMPONENT POSITION DIAGRAM ELECTRONIC INFLATE VALVE 1 4 OVERLOAD PROTECTOR DISCHARGE GAS TEMP SENSOR RT1 C SA...

Page 17: ...E L C SAT RT14 15 RT12 13 RT10 11 RT8 9 RT6 7 RT1 RT2 RT3 XT2 6 XT1 EH 4YV L COMP M LP HP EKV1 5 AP INDUCTANCE IN OUT PIPE TEMP SENSOR A IN OUT PIPE TEMP SENSOR B IN OUT PIPE TEMP SENSOR C IN OUT PIPE...

Page 18: ...alve and gas valve 4 Compressor overload protector 5 Temperature sensor 6 Compressor electric heater 7 Outdoor fan 8 4 way valve 9 Chassis electric heater reserved 10 Unit A electronic expansion valve...

Page 19: ...d protector 8 Interface of chassis electric heater 9 Interface of compressor HOHFWULF KHDWHU EHOW 10 Outdoor fan interface 11 4 way valve interface 12 High voltage protection interface 13 Interface of...

Page 20: ...temperature sensor for liquid valve and gas valve unit D 10 Interface of temperature sensor for liquid valve and gas valve unit C 11 Interface of temperature sensor for liquid valve and gas valve uni...

Page 21: ...eminals of 4 way valve 10 COM Teminals of communication 11 OFAN1 Teminals of fan 12 E1 Teminals of Earth 13 AC L Teminals of line wire 14 FUSE1 Fuse 15 N Teminals of neureal wire 16 HEAT Teminals of F...

Page 22: ...then it will run in set speed The fan shall run at every speed for at least 80s When the quantity of running indoor unit is changed the unit will enter the control described in 1 3 5 1 and 1 3 5 2 Whe...

Page 23: ...mpare the mode of the other indoor units to see if there is a conflict Cooling mode dry mode is in conflict with heating mode b Fan mode is in conflict with heating mode and the heating mode is the ba...

Page 24: ...hrough the power 2 8 Compressor Phase lacking Protection When the compressor starts if one of the three phases is detected open the compressor will enter phase lacking protection The malfunction will...

Page 25: ...dry mode the maximum value A of the capacity requirement percentage of single unit is 90 of that in cooling mode The open condition of the electronic expansion valve outdoor fan and compressor is the...

Page 26: ...WKDW LQGRRU XQLW LV QRW LQVWDOOHG DQG ZLOO WUHDW LW DV LW LV not installed If the outdoor unit receives the communication data of that indoor unit later the outdoor unit will treat that unit as it is...

Page 27: ...Refrigerant Recovery 7KH UHIULJHUDQW FDQ EH UHFRYHUHG IURP HLWKHU WKH LQGRRU XQLW RU WKH RXWGRRU XQLW KHQ WKH XQLW LV SRZHUHG RQ DQG UXQV XQGHU WKH 22 PRGH LW LV DYDLODEOH ZLWKLQ YH PLQXWH WR JR WKH...

Page 28: ...wiring regulations 1 GWHD 14 NK3BO GWHD 18 NK3DO GWHD 24 NK3DO Handle L N To the power supply To unit B Power cord To unit A L L GWHD 14 NK3BO GWHD 18 NK3DO GWHD 24 NK3DO L N To the power supply To u...

Page 29: ...bank The appliance shall be installed in accordance with national wiring regulations Do not install the outdoor unit where it is exposed to the sunlight 2 GWHD 24 NK3EO To the power supply To unit B T...

Page 30: ...ng regulations Do not install the outdoor unit where it is exposed to the sunlight 3 GWHD 28 NK3BO valve cover To the power supply To unit B To unit A cord Power To unit C To unit D Outdoor unit Indoo...

Page 31: ...electronic leak device 7 Turn the body of the 2 way and 3 way valves Discon nect the vacuum pump hose 8 Replace and tighten all the caps on the valves INDOOR UNIT Install the drain fitting and the dra...

Page 32: ...units you must be guidedby trained and qualified person Ensure that the recommended space is left around the appliance GWHD 24 NK3DO GWHD 24 NK3EO GWHD 28 NK3BO Space to the cover Space to the cover...

Page 33: ...Are the lines and pipelines correctly installed The unit may bread down or the components may be burned out Has the unit been safely grounded Are the models of lines in conformity with requirements T...

Page 34: ...ame of the unit to see if it is damaged over the long time period of use 1HYHU UH W WKH XQLW DQG FRQWDFW WKH VDOHV DJHQW RU WKH SURIHVVLRQDO LQVWDOODWLRQ SHUVRQQHO IRU WKH UHSDLU RU UHORFDWLRQ RI the...

Page 35: ...R QRW LQVWDOO WKH XQLW ZKHUH WKHUH DUH LQ DPPDEOH DQG H SORVLYH VXEVWDQFHV DQG ZKHUH WKHUH LV KHDY GXVW VDOW IRJ and other severely polluted air 1R DLU JXLGLQJ SLSH LV DOORZHG WR EH LQVWDOOHG DW WKH...

Page 36: ...G IRU RWKHU SXUSRVH FXW RII RU HG E the tapping screw otherwise it would cause the hazard of electric shock 7KH UHOLDEOH HDUWK WHUPLQDO VKRXOG EH SURYLGHG DQG WKH HDUWK ZLUH FDQ QRW EH FRQQHFWHG WR DQ...

Page 37: ...PDLQWHQDQFH DURXQG WKH unit 7KH LQVWDOODWLRQ ORFDWLRQ VKRXOG EH LQ JRRG FRQGLWLRQ VR WKDW WKH XQLW LV DEOH WR WDNH LQ DQG GLVFKDUJH HQRXJK DLU HVLGHV PDNH VXUH WKHUH LV QR REVWDFOH DW WKH DLU LQOHW RX...

Page 38: ...SRZHU FDUG WR WKH WHUPLQDOV 1 DQG DOVR WKH HDUWKLQJ EROW DQG WKHQ FRQQHFW WKH ZLULQJ WHUPLQDOV N 1 2 3 of the indoor unit to those of the outdoor unit correspondingly 4 Fix the power cord with wire c...

Page 39: ...WKH VFUHZ E WKH WRUTXH ZUHQFK XQLW LW FODWWHUV DV VKRZQ LQ LJ 7KH EHQGLQJ GHJUHH RI WKH SLSH FDQ QRW EH WRR VPDOO RWKHUZLVH LW ZLOO FUDFN QG SOHDVH XVH D SLSH WXEH EHQGHUU WR EHQG WKH SLSH UDS WKH H...

Page 40: ...Pipe with Tape 1 Bundle the refrigerant pipe and electric wire together with tape and separate them from the drain pipe to prevent the FRQGHQVDWH ZDWHU RYHU RZLQJ UDS WKH SLSH IURP WKH ERWWRP RI WKH...

Page 41: ...LJHUDQW SLSH OHQJWK OLTXLG SLSH LV VPDOOHU WKDQ WKDW OLVWHG LQ WKH WDEOH EHORZ QR DGGLWLRQDO UHIULJHUDQW ZLOO EH charged 7DEOH Model 7RWDO LTXLG 3LSH HQJWK D E F G H GWHD 36 NK3AO P GWHD 42 NK3AO P GG...

Page 42: ...JHU RI HOHFWULF VKRFN Does the wire meet the regulated requirement 7KH XQLW PD EUHDN GRZQ RU WKH FRPSRQHQW PD EH EXUQW RXW V WKHUH DQ REVWDFOH DW WKH DLU LQOHW RXWOHW RI WKH indoor outdoor unit 7KH FR...

Page 43: ...Exploded Views and Parts List 41 8 Exploded Views and Parts List 1 Models GWHD 14 NK3BO GWHD 18 NK3DO 1 2 3 4 5 8 9 6 10 11 12 13 14 17 20 21 24 26 27 28 16 15 22 25 7 18 19 23...

Page 44: ...ensor 39000073 39000073 1 11 Cut off Valve 071302391 071302391 2 12 Cut off Valve 07130239 07130239 2 13 Valve cover 22242101 22242101 1 14 Big Handle 26233048 26233048 1 15 OHFWULF H SDQG YDOYH WWLQJ...

Page 45: ...9000073 39000073 1 11 Cut off Valve 071302391 071302391 1 12 Cut off Valve 07130239 07130239 1 13 Valve Cover 22242101 22242101 1 14 Big Handle 26233048 26233048 1 15 Electric Expand Valve Fitting 430...

Page 46: ...Exploded Views and Parts List 44 2 Model GWHD 24 NK3DO CB228W0070 1 2 3 4 5 8 9 6 10 11 12 13 14 17 20 21 24 26 27 28 29 30 31 32 33 34 16 15 22 25 7 18 19 35 36 37 38 23...

Page 47: ...9000073 1 17 Electronic Expansion Valve assy 07133457 1 18 OHFWULF H SDQG YDOYH WWLQJ 4300008401 1 19 OHFWULF H SDQG YDOYH WWLQJ 43000084 1 20 Magnet Coil 4300040033 1 21 4 way Valve Assy 03123415 1 2...

Page 48: ...Exploded Views and Parts List 46 3 Model GWHD 24 NK3DO CB228W0071 1 2 3 4 5 8 9 6 10 11 12 13 14 17 20 21 24 26 27 28 29 30 31 32 33 34 16 15 22 25 7 18 19 35 36 37 38 23...

Page 49: ...39000073 1 17 Electronic Expansion Valve assy 07133457 1 18 OHFWULF H SDQG YDOYH WWLQJ 4300008401 1 19 OHFWULF H SDQG YDOYH WWLQJ 43000084 1 20 Magnet Coil 4300040033 1 21 4 way Valve Assy 03123415 1...

Page 50: ...Exploded Views and Parts List 48 4 Model GWHD 24 NK3EO CB228W0100 1 2 3 4 5 8 9 6 10 11 12 13 14 19 22 23 26 28 29 30 31 32 33 34 35 37 36 39 40 17 16 24 27 15 38 18 20 21 7 25...

Page 51: ...73 1 18 OHFWULF H SDQG YDOYH WWLQJ 4300008402 1 19 Electronic Expansion Valve assy 07133456 1 20 OHFWULF H SDQG YDOYH WWLQJ 43000084 1 21 OHFWULF H SDQG YDOYH WWLQJ 43000084 1 22 Magnet Coil 430004003...

Page 52: ...Exploded Views and Parts List 50 5 Model GWHD 24 NK3EO CB228W0101 1 2 3 4 5 8 9 6 10 11 12 13 14 19 22 23 26 28 29 30 31 32 33 34 35 37 36 39 40 17 16 24 27 15 38 18 20 21 7 25...

Page 53: ...ture Sensor 3900007301 1 17 Temperature Sensor 39000073 1 18 OHFWULF H SDQG YDOYH WWLQJ 4300008402 1 19 Electronic Expansion Valve assy 07133456 1 20 OHFWULF H SDQG YDOYH WWLQJ 43000084 1 21 OHFWULF H...

Page 54: ...Exploded Views and Parts List 52 6 Model GWHD 28 NK3BO CB228W0110 1 2 3 4 5 8 9 6 10 11 12 13 14 22 23 24 27 29 30 31 32 33 34 35 36 38 37 18 17 25 28 16 15 39 40 41 7 19 20 21 26...

Page 55: ...7302 1 17 Temperature Sensor 3900007301 1 18 Temperature Sensor 39000073 1 19 OHFWULF H SDQG YDOYH WWLQJ 4300008403 1 20 OHFWULF H SDQG YDOYH WWLQJ 4300008402 1 21 OHFWULF H SDQG YDOYH WWLQJ 430000840...

Page 56: ...Exploded Views and Parts List 54 7 Model GWHD 28 NK3BO CB228W0111 1 2 3 4 5 8 9 6 10 11 12 13 14 22 23 24 27 29 30 31 32 33 34 35 36 38 37 18 17 25 28 16 15 39 40 41 7 19 20 21 26...

Page 57: ...7302 1 17 Temperature Sensor 3900007301 1 18 Temperature Sensor 39000073 1 19 OHFWULF H SDQG YDOYH WWLQJ 4300008403 1 20 OHFWULF H SDQG YDOYH WWLQJ 4300008402 1 21 OHFWULF H SDQG YDOYH WWLQJ 430000840...

Page 58: ...Exploded Views and Parts List 56 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 30 31 32 33 34 35 36 37 38 39 40 41 42 8 Model GWHD 36 NK3AO CN860W0011...

Page 59: ...rainer 07212121 1 19 StrainerA 07210022 1 20 Bidirection Accumulator 07228741 1 21 4 Way Valve Assy 04144307 1 22 Pressure Protect Switch 4602000902 1 23 Gas liquid Separator 07220030 1 24 4 way Valve...

Page 60: ...loded Views and Parts List 58 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 9 Model GWHD 42 NK3AO CN860W0...

Page 61: ...rainerA 07210022 1 16 Cut off Valve 07334403 1 17 Cut off Valve 07334402 1 18 StrainerA 07210022 1 19 Valve support assy 01804238 1 20 Oil Separator 07228302 1 21 7XEH OLS 0214000521 1 22 StrainerA 07...

Page 62: ...Electric Box Assy 02404113 1 45 0RWRU 6XSSRUW 6XE VV 01805402 1 46 Left Side Plate 01305064P 1 47 Condenser support plate 01895309 1 48 ODSERDUG 01244141 1 49 Fan Motor 1570522801 1 50 Axial Flow Fan...

Page 63: ...21 Complete unit frequency restriction protection 22 Complete unit frequency dropping protection 23 Unit A frequency restriction or frequency dropping protection 24 Unit B frequency restriction or fr...

Page 64: ...wire misconnection or expansion valve malfunction 57 Unit C communication wire misconnection or expansion valve malfunction 58 Unit D communication wire misconnection or expansion valve malfunction No...

Page 65: ...the unit to operate Test the resistance between the three phases Reconnect the wire of the compressor according to the correct wiring method If the resistance is normal If the resistance is above 500M...

Page 66: ...d well and if the induction is broken Flow chart Start Check If the power supply is normal Power supply is abnormal yes yes yes no no no Check if the outdoor induction is broken The induction is broke...

Page 67: ...tweenthetwo ends of the electrolytic capacitor with the DC shift of the universal meter The voltage is above 100V yes yes yes no no no The detection circuit of the outdoor mainboard has malfunction Re...

Page 68: ...art Start If the outdoor ambient temperature is above 53 yes yes yes no no no It is a normal protection please operate the unit after the outdoor ambient temperature has changed If the indoor and outd...

Page 69: ...nction Check whether the temperature senspr is normal according to resistance table Replace the temperature sensor with the same model Replace the controller with the same model End Eliminate the malf...

Page 70: ...3min no no no no no no yes yes yes yes yes yes If the connection wire of the compressor is connected well and correctly Eliminate the malfunction Reconnecttheconnectionwire ofthecompressoraccording to...

Page 71: ...malfunction of some indoor units De energize check the connection wire of indoor and outdoor unit and the wire of the eletric box is connected correctly no no no Connected correctly Reconnect accordi...

Page 72: ...d correctly Connected correctly Reconnect according to the wiring diagram Connected correctly Reconnect according to the wiring diagram De energize check if the connection wire between the outdoor mai...

Page 73: ...k If the wiring of the eletric expansion valve is coonected well Replace the overload protector Check the coil of the eletric expansion valve replace it if it is broken Eliminate the malfunction Recon...

Page 74: ...ate the malfunction Eliminate the malfunction Eliminate the malfunction Replace the compressor End no no no no no no yes yes yes yes yes yes Replace outdoor mainboard The unit appears desynchronizing...

Page 75: ...e door and window Direct sunlight DQJ D FXUWDLQ RU EOLQGV RYHU WKH ZLQGRZ Too much people in the room Too much heat sources in the room Reduce the heat sources LUW OWHU VFUHHQ OHDQ WKH OWHU VFUHHQ 1RW...

Page 76: ...emp Sensor Error F5 Flash 5 times F5 F5 Outdoor Oil Return for Cooling F7 Outdoor High Pressure Protection E1 Flash once E1 E1 Outdoor Shutdown for Whole Unit Anti Freeze Protection E2 Flash twice E2...

Page 77: ...sh 7 times H7 H7 Outdoor PFC Error Hc Flash 6 times Hc Hc Outdoor L9 Flash 20 times L9 L9 Outdoor Startup Failure Lc Flash 11 times Lc Lc Outdoor Phase Loss Ld Flash 3 times Flash 3 times Flash 3 time...

Page 78: ...Unit D indoor pipe midway temperature sensor error 47 Unit D anti freezing protection 55 8QLW LQGRRU DPELHQW temperature sensor error 43 Unit D indoor unit pipe outlet temperature sensor error 51 Unit...

Page 79: ...y check the inlet and outlet of main pipe connecting with each indoor unit and capillary of indoor and outdoor units Replace the parts like filter capillary and so on Check if indoor unit fan and outd...

Page 80: ...un Check if swing louver of indoor unit is completely open Check if there is filth blockage to indoor outdoor filter or heat exchange fin System pipeline is blocked Mainly check the inlet and outlet o...

Page 81: ...e overcurrent protector If unit s high pressure is normal Refer to high pressure protection If voltage is normal Contact the power supply company Replace mainboard N Y Y N Y Discharge temperature prot...

Page 82: ...k the cables of water drainge pump Check if the water drainage pump works Check if the water drainage pipe is jammed or if water flows smoothly Clear the water drainage pipe Adjust the water drainage...

Page 83: ...rd Remove the sensor to check if the resistance value is ok Replace mainboard of the indoor uint Replace temperature sensor Check the direction of the plug and socket N N Y Y Y Failure of Exhaust Temp...

Page 84: ...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...

Page 85: ...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...

Page 86: ...53 74 62 11 32 101 3 22 15 362 9 24 51 41 63 10 93 102 3 13 14 342 8 25 49 19 64 10 54 103 3 04 13 323 9 26 47 08 65 10 18 104 2 96 12 306 2 27 45 07 66 9 83 105 2 87 11 289 6 28 43 16 67 9 49 106 2 7...

Page 87: ...mbly 1 Models GWHD 14 NK3BO GWHD 18 NK3DO Steps Procedure 1 Before disassembly Complete axonometric drawing 2 Remove valve cover Remove the connection screw fixing the valve cover and then remove the...

Page 88: ...e front panel and then remove the top panel 5 Remove front grille Remove the connection screws connecting the front grille and the front panel and then loosen the clasp to remove the front grille 6 Re...

Page 89: ...pport Then remove the right side plate 8 Remove rear grill Remove the screws connecting the rear grill and left side plate and then remove the rear grill 9 Remove left side plate Remove the screws fix...

Page 90: ...e leading wire insert of the motor Then remove the motor Remove the 2 tapping screws fixing the motor support and chassis and then lift the motor support to remove it 12 Remove electric box assy Remov...

Page 91: ...Unsolder the welding joint connecting the 4 way valve assy with compressor suction and discharge port the valve with the outlet pipe of condenser Then lift the 4 way valve assy to remove it NOTE Disch...

Page 92: ...iddle isolation sheet 17 Remove compressor Remove the 3 foot nuts fixing the compressor and then remove the compressor 18 Remove condenser assy Remove the screws fixing the condenser support and then...

Page 93: ...tion screw fixing the valve cover and then remove the valve cover 3 Remove top panel Remove the connection screws connecting the top panel with the right side plate and the left side plate and then re...

Page 94: ...and then loosen the clasp to remove the front grille 5 Remove front panel Remove the screws connecting the front panel and then remove the front panel 6 Remove right side plate grille front panel rig...

Page 95: ...rt Remove the screws connecting the rear grill and the left side plate and then remove the rear grill Remove the screws fixing the left side plate with the chassis and the condenser support and then r...

Page 96: ...blade and then remove the axial flow blade Remove the 4 tapping screws fixing the motor and disconnect the leading wire insert of the motor Then remove the motor Remove the 2 tapping screws fixing th...

Page 97: ...lder the welding joint connecting the 4 way valve assy with compressor suction and discharge port the valve with the outlet pipe of condenser Then lift the 4 way valve assy to remove it NOTE Discharge...

Page 98: ...sor condenser assy Remove the screws connecting the middle isolation sheet with the chassis assy and the condenser assy and then remove the middle isolation sheet Remove the 3 foot nuts fixing the com...

Page 99: ...joint connecting the electronic expansion valve sub assy with the gas collection pipe and then remove the electronic expansion valve assy Note when unsoldering wrap the gas valve with a wet cloth com...

Page 100: ...WKH FRYHU SODWH LVDVVHPEOH WKH IURQW SDQHO LVDVVHPEOH WKH SDQHO RQ WKH ULJKW VLGe Disassembly and Assembly of Outer Casing 5HPRYH WKH IL HG VFUHZV RQ WKH FRYHU SODWH E using a screwdriver Remove the c...

Page 101: ...DVLQJ LVDVVHPEOH WKH IDQ EODGHV 5HPRYH WKH IL HG VFUHZV RQ WKH JULOOH E XVLQJ a screwdriver Remove the grille 5HPRYH WKH IL HG VFUHZV RQ WKH RXWHU FDVLQJ E using a screwdriver Remove the outer casing...

Page 102: ...K FRPSUHVVRr Disassembly and Assembly of Compressor Disconnect the pipeline connected with compressor Remark Make sure that there is no refrigerant in pipe system and the power supply is cut off befor...

Page 103: ...em 3ODFH WKH FRPSUHVVRU RQ WKH ERWWRP SODWH 7LJKHQ WKH QXWV E XVLQJ D WRRO 5HPRYH WKH EROWV RQ WKH FRPSUHVVRU E XVLQJ D WRRO 7DNH GRZQ WKH EDG FRPSUHVVRU IURP WKH ERWWRP SODWH Steps Procedure Steps Pr...

Page 104: ...he 4 way valve and reconnect it with the pipeline 4 Install the 4 way valve coil Disconnect the 4 way valve and the connected pipe E D ZHOGLQJ JXQ 7DNH GRZQ WKH EDG ZD YDOYH Place the new 4 way valve...

Page 105: ...electronic expansion valve coil Disassembly and Assembly of Electronic Expansion Valve Disconnect the electronic expansion valve and the FRQQHFWHG SLSH E D ZHOGLQJ JXQ Place the new electronic expans...

Page 106: ...th the pipeline Disassembly and Assembly of Vapour Liquid Separator Disconnect the liquid separator and the connected pipeline 5HPRYH WKH EROW IL LQJ WKH OLTXLG VHSDUDWRU E D WRRO 5HPRYH WKH OLTXLG VH...

Page 107: ...duct specification and appearance in this manual without notice and without incurring any obligations Add West Jinji Rd Qianshan Zhuhai Guangdong China 519070 Tel 86 756 8522218 Fax 86 756 8669426 E m...

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