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1. NO Description Part Code Qty GWHO9MB K3DNE3G I_ GWH12MB K3DNES3G I Product Code 404 03600 404 03500 1 Front Panel 2001288801P 2001288801P 1 2 Display Board 30565144 30565144 1 3 Filter Sub Assy 1112220403 1112220403 2 4 Electric Box Cover2 2010249602 2010249602 1 5 Screw Cover 242520172 242520172 1 6 Front Case Sub Assy 2001213923 2001213923 1 7 Axile Bush 1054203602 1054203602 1 8 Guide Louver 1051215701 1051215701 1 9 Air Louver 1 1051215601 1051215601 1 10 Air Louver 2 1051215501 1051215501 1 11 Helicoid tongue 2611216301 2611216301 1 12 Left Axile Bush 10512037 10512037 1 13 Rear Case assy 2220210311 2220210311 1 14 Cross Flow Fan 10352017 10352017 1 15 O Gasket sub assy of Bearing 7651205102 7651205102 1 16 Ring of Bearing 26152022 26152022 1 17 Drainage hose 0523001401 0523001401 1 18 Wall Mounting Frame 01252021 01252021 1 19 Evaporator Assy 01002424 01002953 1 20 Evaporator Support 24212091 24212091 1 21 Cold Plasma Generator Sub assy 1114001602 1114001602 1 22 Connecting Cable 4002052317 4002052317 0 23 Power Cord 24 2611216402 2611216402 1 25 Fan Motor 150120874 150120874 1 26 Motor Press Plate 26112161 26112161 1 27 Rubber Plug Water Tray 76712012 76712012 1 28 Step Motor 1521212901 1521212901 1 29 Crank 10582070 10582070 1 30 Electric Box Assy 10000200890
2. Ny OFF sleep mode CD child lock Temp display type en light A set temp indoor ambient Introduction for Buttons on Remote Controlle r Note After putting through the power the air conditioner will give out a sound Operation indictor 1 is red indicator After that you can operate the air conditioner by using remote controll 1 ON OFF Button er Press this button can turn on or turn off the air conditioner After turning on the air conditioner operation indicator 1 indoor unit s display is green indicator The colour is different for different models and indoor unit will give out a sound 2 MODE Button Press this button to select your required operation mode AUTO COOL DRY FAN HEAT C gt S Technical Information Service Manual When selecting auto mode Air conditioner will start auto operation according to indoor ambient temperature Set temperature can t be adjusted and will not be displayed as well Press FAN button can adjust fan speed Press 31 button can adjust fan blowing angle e After selecting cool mode air conditioner will operate under cool mode Cool indicator 3 amp on indoor unit is ON Press or button to adjust set temperature Press FAN button to adjust fan speed Press 31 button to adjust fan blowing angle e When selecting d
3. Oo A 2 428 0 Appendix 2 Configuration of Connection Pipe Max length of Max height 1 Standard length of connection pipe Cooling capacity 5000 Btu h 1465 W 7000 Btu h 2051 W 5m 7 5m 8m 2 Min length of connection pipe is 3m Fahrenheit display temperature display temperature 3 length of connection pipe and high difference 4 additional refrigerant oil and refrigerant charging required after inno e After the length of connection pipe is prolonged for 10m at the basis of standard length you should add 5ml of refrigerant oil for each additional 5m of connection pipe e The calculation method of additional refrigerant charging amount on When the length of connection pipe is above 5m add refrigerant according to the prolonged length of liquid pipe The additional refrigerant charging amount per meter is different according to the diameter of liquid pipe See the following sheet Additional refrigerant charging amount prolonged length of liquid pipe X additional refrigerant charging amount per meter Additional refrigerant charging amount for R22 R407C R410A and R134a Diameter of connection pipe Outdoor unit throttle Liquid pipe mm Gas pipe mm Cooling only g m Cooling and heating g m 09 5 or 012 15 6 or 9 5 016 or 019 15 20 19 or 022 2 30 120 25 4 or 31 8 60 120 250
4. 4 on 239 a s sos 4 9304 8 i2 onz 6 sa 5 214 i3 on 7 en 4 es 14 os 8 m a ee 209 1 om aem o 8 19 1 os 38 4 74 89 194 ims u so 3 9 tes me 993 394 s 5 9 ras oer Lon xs 5 e in m osm aa 9 1 3 5 9 050 ij se 5 ne 9 150 14 oss s sm 9 155 Bs om 32 L i4 1 75 o Installation and Maintenance Service Manual Resistance Table of Outdoor Discharge Temperature Sensor 50K Temp C Resistance kO Resistance kQ Resistance kQ _ Temp C Resistance kQ 9 45 10 8 49 1834 88 454 328 7998 50 1765 89 460 a mm i 0907 1699 90 446 13 52 1636 91 4334 5 14 155 92 420 24 608 15 7735 54 1517 93 4079 5806 16 7383 55 1462 94 3958 22 589 17 705 56 140 95 1 5166 18 57 1358 96 372 4865
5. temperature will rise 1 C by every hour after sleep function is set the temperature will not change after rising after running for 7 hours the temperature will decrease 1 C and it will not change after that Technical Information Service Manual 1 2 When the initial set temperature is 24 27 C the temperature will rise 1 C by every hour after sleep function is set the temperature will not change after rising 2 C after running for 7 hours the temperature will decrease 1 C and it will not change after that 1 3 When the initial set temperature is 28 29 temperature will rise 1 C by every hour after sleep function is set the temperature will not change after rising 1 C after running for 7 hours the temperature will decrease 1 C and it will not change after that 1 4 When the initial set temperature is 30 the unit will keep on running at this temperature after running for 7 hours the temperature will decrease 1 C and it will not change after that Relationship between set temperature and running time Initial Temp Running time T 0 8 2 In heating mode 2 1 When the initial set temperature is 16 C the unit will keep on running at this temperature 2 2 When the initial set temperature is 17 20 C the temperature will decrease 1 C by every hour after sleep function is set the temperature will not change after decreasing 1 C 2 3 When the initial set temperature is 21 27 C
6. 2 Dehumidifying Mode QD Working conditions and process of dehumidifying If T amp gt T preset the unit will enter cooling and dehumidifying mode in which case the compressor and the outdoor fan will operate and the indoor fan will run at low speed If T presec 2 C ST amp ST preset the compressor remains at its original operation state If T amp T preset 2 the compressor will stop the outdoor fan will stop with a time lag of 30s and the indoor fan will operate atlow speed Q Protection Protection is the same as thatunder the cooling mode Technical Information Service Manual 3 HEAT Mode 1 Working conditions and process of heating Tamb sTpreset 2 C the unit enters heating mode in which case the four way valve the compressor and the outdoor fan will operate simultaneously and the indoor fan will run at preset speed in the condition of preset cold air prevention If T amb 2Tpreset 5 C the compressor will stop the outdoor fan will stop with a time lag of 30s and the indoor fan will stop after 60 second blow at low speed Tpreset 2 C lt T amb lt Tpreset 5 C the unit will maintain its original operating status Under this mode the four way valve is energized and temperature can be set within a range of 16 30 C The operating symbol the heating symbol and preset temperature are revealed on the display Condition and process of defrost When duration of successive heating operation is mo
7. 222 350 350 Installation and Maintenance 20 250 72 Service Manual Appendix 3 Pipe Expanding Method Note Improper pipe expanding is the main cause of refrigerant leakage Please expand the pipe according to the following steps x 90 Leaning Uneven A Cut the pip a 4 Confirm the pipe length according to the distance of indoor unit and outdoor unit EJ e Cut the required pipe with pipe cutter the burrs Pipe Remove the burrs with shaper and prevent the burrs from getting into the pipe 5 Downwards C Put on suitable insulating pipe D Put on the union nut Union pipe Remove the union nut on the indoor connection pipe and outdoor valve install the union nut on the pipe Pipe E Expand the port Expand the port with expander Note e is different according to the diameter please refer to the sheet below Smooth surface F Inspection Check the quality of expanding port If there is any blemish expand the port again according to the steps above leaning damaged crack uneven surface thickness The length iS equal 73 Installation and Maintenance Appendix 4 List of Resistance for Temperature Sensor Resistance Table for Indoor and Outdoor Ambient Temperature Sensor 15K LTemp C 0 Resistance k Resistance kQ 39
8. 63 776X540X320 848X360X580 851 363 595 29 0 Gross Weight Refrigerant Refrigerant Charge ength Gas Additional Charge Outer Diameter Liquid Pipe Outer Diameter Gas Pipe Max Distance Height Max Distance Length Note The connection pipe applies metric diameter 32 0 R410A The above data is subject to change without notice please refer to the nameplate of the unit Technical Information 33 0 R410A 0 85 Service Manual 2 2 Operation Characteristic Curve Heating Cooling Indoor air flow T Pipe length 5m Voltage 230V Indoor DB 20 C Condition 6 Condition Indoor DB 27 C WB19 C Indoor air flow Turbo Pipe length 5m Voltage 230V 40 60 80 100 120 Compressor S peed rps 20 60 80 100 120 Compressor Speed rps 40 2 3 Capacity Variation Ratio According to Temperature Heating Cooling pedeo NES cO 1 U eS Offa MM NN sm 4 AE Hes EE Me gerent 1 E feat ES Ab eS Ba lere d audes ead uo 1 1 Q a 2 5 on le
9. a lt Check the connection situation of outdoor mainboard AP 1 and compressor COMP and the connect it according to wiring diagram If the compressor wire COMP UVW is well connected and connection sequence is correct Y Does the unit start up normally If the refrigerant charging amountis too much Y Charge the refrigerant according to service manual Does the unit start up normally 4 N Replace outdoor mainboard AP 1 Is the malfunction Y gt eliminated Replace the compressor 46 Installation and Maintenance Service Manual 10 Overload and high discharge temperature malfunction Main detection points If the electronic expansion valve is connected well Is the electronic expansion 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 sensor Installation and Maintenance 47 Service Manual 48 Replace overload protector SAT C H3 or E4 is displayed Y 30min after power off the unit If the overload protector SAT well
10. su Symbol CAP COMP Note Jumper cap is used to determine fan speed and the swing angle of horizontal lover for this model e Indoor Unit EN L ROOM TUBE DISPLAY TEM SENSOR TEM SENSOR m 8 OUTDOOR RT2 13 gu Lt BU ROOM DISPIDISP2 uri Bk AC L N 3 BN 113 YEGN CAP YEGN 2 YEGN TERMINAL JUMP BLOCK EVAPORATOR ELECTRIC BOX BN BROMN BK BLACK Y BU BLUE YE YELL 3 YEGN YELLOW GREEN T teo 42 m co PLASMA 2 2 GENERATOR SWING MOTOR U D FAN MOTOR cci PLASIK INDOOR UNIT a Technical Information Outdoor Unit 2 e Qm DT L 0 TEN SENSOR TEK SENSOR TEN SENSOR an ol L3 0 o O A INDOOR POWER ur Es UNIT CN2 ONT
11. BU Li N N 1 AP2 2 2 bs Fe se COMU BN L1 3 7 AC LI lt OFAN HEAT2 HEATI TERMINAL Uv g g BLOCK Voy y 7 ELECTRIC BU RD LL RD RDRD RD MID ISOLATION SHEET BOX PED 9 PEDS o 9 m W20 YEGN FAN MOTOR HEATER HEATER YEGN CHASSIS COMP ED TE Wig NOTE The electrical YEGN lotor ground only heaters are applies to the optional iron shel motor OUTDOOR UNIT 5 7 Technical Information 10 5 2 Indoor Unit e Top view 8 KEY_SWING LR 9 z PTS Mk e Bottom view g enu aai we a dh 000 0 0 dl C36 mg Hse i Heil E L Ai LI m cni a 2 15 M4 il Service Manual 8 button 10 Port of motor for horizontal swing Port of display 14 P
12. DC fan motor malfunction or malfunction lead to compressor system blocked or the connector stop operation compressor stop operation and Outdoor fan motor will stop 30s latter 3 minutes latter fan motor and compressor will restart compressor and Outdoor fan motor can t work During cooling and drying operation compressor will stop while indoor fan will operate During heating operation the complete unit will stop operation loosed To protect the electronical components when detect high power Indoor unit and outdoor unit doesn t match Refer to the malfunction analysis Installation and Maintenance 35 Service Manual Display Method of Outdoor Display Method of Indoor Unit Indicator has 3 kinds of Indicator Display during display status and durin Malfunction blinking 0 55 and OFF Con d Name blinking ON 0 5s and OFF 0 5s Code 0 55 Display Operation Cool Heating Yellow Red Green Indicator Indicator Indicator Indicator Indicator Indicator A C status Possible Causes Malfunction of During cooling and drying phase current operation compressor will stop detection while indoor fan will operate outdoor control panel AP1 circuit for During heating operation the compressor complete unit will stop During cooling and drying operation compressor will stop while indoor fan will operate Supply voltage is unstable During heating operat
13. Showing during min cooling or min heating test Showing during nominal cooling or nominal heating test Showing during max cooling or max heating test 33 34 Display Method of Outdoor Display Method of Indoor Unit Unit Indicator Display during Dual g blinking ON 0 55 and OFF Malfunction Indicator has 3 kinds of display status and during blinking ON 0 5s and OFF 0 5s during blinking ON during blinking ON and blink 8 times status During cooling and drying operation compressor will stop while indoor fan will operate During heating operation the complete unit will stop operation During cooling and drying operation compressor will stop while indoor fan will operate During heating operation the complete unit will stop During cooling and drying operation compressor will stop while indoor fan will operate During heating operation the complete unit will stop During cooling operation compressor will stop while indoor fan will operate During heating operation the complete unit will stop All loads operate normally while operation frequency for compressor is decreased During cooling and drying operation compressor will stop while indoor fan will operate During heating operation the complete unit will stop operation Service Manual Possible Causes Showing during middle cooling or middle heating test Refer to the malfunction analysis
14. no Replace the mainboard with the same model 4 40 Installation and Maintenance Service Manual 4 Malfunction of Overcurrent Protection E5 Troubleshooting for E5 malfunction Is the supply voltage unstable with big fluctuation no Normal fluctuation is within 10 of the rated voltage on the nameplate Malfunction is eliminated Is the supply voltage too low with overload no Adjust supply voltage to maintain it within normal range no Malfunction is eliminated S the indoor outdoor heat exchanger too dirty or are the gt and outlet blocked Clean the indoor and outdoor heat exchangers and remove the blockage of air inlet and outlet Malfunction is eliminated 4 fan is abnormal Fan speed is too low or fan doesn t rotate no no Check the motor and reinstall the motor to have the fan run normally no Malfunction is eliminated Measure the current of live wireon the main board with a clamp ampere meter Is the current higher than the value of the overcurrent protection yes Replace the mainboard with the same model Malfunction is eliminated Is there blockage inside the system Filth
15. 10 Remove clapboard sub assy Clapboard Sub Assy Loosen the screws of the Clapboard Sub Assy The Clapboard Sub Assy has a hook on the lower side Lift and pull the Clapboard Sub Assy to remove Installation and Maintenance 70 Service Manual 11 Compressor Remove the 2 screws fixing the gas valve Unsolder the welding spot connecting gas valve and air return pipe and remove the gas valve Note itis necessary to warp the gas valve when unsoldering the welding spot Remove the 2 screws fixing liquid valve Unsolder the weld ing spot connecting liquid valve and remove the liquid valve Gas valve Remove the 3 footing screws of the compressor and remove the compressor Compressor 71 o Installation and Maintenance Service Manual Appendix Appendix 1 Reference Sheet of Celsius and Fahrenheit Conversion formula for Fahrenheit degree and Celsius degree Tf Tcx1 8 32 Set temperature Fahrenheit display Fahrenheit temperature display Fahrenheit temperature CED Celsius C Celsius 16 19 68 68 20 Ambient temperature COIN Fahrenheit display Fahrenheit temperature CF PD Fahrenheit display Fahrenheit temperature 329 32 Celsius 3 4 42 8 7 6 69 68 20 10 11 2
16. 20 187 5 388 35 an us 3m ar 2 ra amp 359 46 ums 53 34 a5 x se 9 Installation and Maintenance Service Manual 9 ton 99 109 14 104 0 898 74 Service Manual Resistance Table for Indoor and Outdoor Tube Temperature Sensor 20K Resistancelka Tempi Resistance Resistance Resistance ka 49 2 9 53 9 14 48 ana ze 298 9 13 2 ze a 9 13 46 183 3 as amp 29 a 13 45 ws 19 129 mz l amp 19 123 43 ums s es 3 ne 42 s 7 e 399 15 3 mes s us 1 40 3 9 199 p 3 39 38 39 8 3 7 34 19 199 Eo e E E EE 89 17 33 14 18 3 252 0 983 5 ua ns 5 3i um ose 4 oa 3 m 99 3 3 ua 5 29 um 99 72 41 37 12 76 2 844 115 0 88 esse re NEAN NEM MM 0 3 3 mue 29 m oss 1 4 wa 257 uu om 2 a 12 9 uu 3 amp 39 a 245 we 4
17. 4 For the unit with cooling capacity of 2300W 5000W 6 expansion screws are needed for the unit with cooling capacity of 6000W 8000W 8 expansion screws are needed for the unit with cooling capacity of 10000W 16000W 10 expansion screws are needed n Chassis Outdoor drain joirt Drain vent Drain hose e he At least 3cm above the floor A Fig 18 Fig 19 2 Install Drain Joint Only for cooling and heating unit 1 Connect the outdoor drain joint into the hole on the chassis 2 Connect the drain hose into the drain vent As show in Fig 19 3 Fix Outdoor Unit 1 Place the outdoor unit on the support 2 Fix the foot holes of outdoor unit with bolts As show in Fig 20 Foot holes Era Y E Foot holes Fig 21 Fig 20 4 Connect Indoor and Outdoor Pipes 1 Remove the screw on the right handle of outdoor unit and then remove the handle As show in Fig 21 2 Remove the screw cap of valve and aim the pipe joint at the bellmouth of pipe As show in Fig 22 Liquid Liquid pipe Pipe joint lt RP 2 4 gas pipe Rs 2 4 gas valve AD Union nut Fig 22 3 Pretightening the union nut with hand 4 Tighten the union nut with torque wrench Installation and Maintenance Refer to the following table for wrench moment of force Hex nut diameter mm Tightening torque N m 15 20 9 52 30 40 45 55 60
18. 19 0433 58 130 97 3619 19 4583 20 6148 59 98 354 38 a2 21 587 60 20 99 3413 22 5619 6l 174 10 3 315 16 3845 23 534 1 3 10 32 5 4 sim 63 109 10 3 129 25 4919 64 1054 103 3 04 339 26 470 65 1018 104 2 955 306 2 45 07 9 827 105 2 872 E EE MEER mn MER 3n 3 ax 0m rs ee MEM MEM 108 2 64 8 256 3 3 8555 109 2 568 2326 32 3638 71 10 2 498 6 25 33 48 72 79920 m 2431 5 3 345 7 776 2 365 193 5 320 74 7 m 2 302 191 36 309 75 724 14 2 241 2 mes 37 94 76 698 us 2182 1 1695 38 2836 676 16 214 0 39 273 62 W 2 069 153 2615 79 633 ue 2405 M54 a 80 6029 196 53 2 8 593 120 1 912 tej sm ul 1 863 251 44 29 83 555 12 1 816 noi 5 24 8 539 13 177 4 2206 85 522 1 4 1 725 Peg at 398 59 125 1 682 9 108 1906 87 494 126 1 64 Note The information above is for reference only Installation and Maintenance 76 4200302224 O GREE GREE ELECTRIC APPLIANCES INC OF ZHUHAI Add West Jinji Rd Qianshan Zhuhai
19. Fig 14 Connection pipe Drain hose pang Fig 15 Indoor power cord Note 1 The power cord and control wire can t be crossed or winding 2 The drain hose should be bound at the bottom 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 sealing gum 4 Fix the wall pipe As show in Fig 16 5 Check if the indoor unit is installed firmly and closed to the wall As show in Fig 17 Indoor Outdoor Wall Fig 17 Upper hook 2222 47777777 2077 27772 7 7 Fig 16 Lower hook of wall mounting frame Note Do not bend the drain hose too excessively in order to prevent blocking Installation and Maintenance Service Manual 8 6 Installation of Outdoor Unit 1 Fix the Support of Outdoor Unit select it according to the actual installation situation 1 Select installation location according to the house structure 2 Fix the support of outdoor unit on the selected location with expansion screws A Note 1 Take sufficient protective measures when installing the outdoor unit 2 Make sure the support can withstand at least four times the unit weight 3 The outdoor unit should be installed at least 3cm above the floor in order to install drain joint As show in Fig 18
20. Guangdong China 519070 Tel 86 756 8522218 Fax 86 756 8669426 Email gree 2gree com cn _Http www gree com HONG KONG GREE ELECTRIC APPLIANCES SALES LIMITED Add Unit 2612 26 F Miramar Tower 132 Nathan Road TST Kowloon HK Tel 852 31658898 Fax 852 31651029 For product improvement specifications and appearance in this manual are subject to change without prior notice
21. IPM protection loss of synchronism protection and overcurrent protection of phase current for compressor Refer to the part three charging malfunction analysis of capacitor Replace outdoor control panel AP 1 After the complete unit is de energized for 20mins check whether the thermal grease on IPM Module of outdoor control panel AP1 is sufficient and whether the radiator is inserted tightly If its no use please replace control panel AP1 Refer to the malfunction analysis overload high temperature resistant 1 Wiring terminal OVC COMP is loosened In normal state the resistance for this terminal should be less than 1ohm 2 Refer to the malfunction analysis discharge protection overload Installation and Maintenance Service Manual 43 Malfunction Name System is abnormal Internal motor fan motor do not operate Desynchro nizing of compressor Outdoor DC fan motor malfunction Indoor unit and outdoor unit doesn t match Failure start up Display Method of Outd Display Method of Indoor Unit Indicator has 3 kinds of LC Indicator Display during blinking ON 0 5s and OFF 0 5s Operation Indicator 0 5s Cool Heating Yellow Indicator Indicator Indicator OFF 1S and blink 6 times OFF 1S and blink 4 times OFF 1S and blink 14 times OFF 1S and blink 9 times display status and during blinking ON 0 5s and OFF Red Green Indicator In
22. The compressor is in on status 2 The compressor is in off status and the outdoor ambient temperaturez 5 C c When outdoor ambient temperature sensor is in malfunction status the electric heating band stops operation Condenser electric heating band control 1 When Toutdoor ambients1 C the electric heating band starts working 2 When enter defrosting and defrosting is finished the chassis electric heating band starts working for 3min as the compressor starts After the compressor starts for 3min and Toutdoor ambient23 C the electric heating band stops operation 3 When Toutdoor ambient23 C the condenser electric heating band doesn t work 4 When 1 C Toutdoor ambient lt 3 the condenser electric heating band keeps the previous status When outdoor ambient temperature sensor is in malfunction status the electric heating band stops operation the electric heating band can work again after 2min of last stop 15 Compulsive defrosting function 1 Condition of entering compulsive defrosting function When the unit and remote controller are set in heating mode and the set temperature is 16 C continuously pressing button within 5s the indoor unit will enter compulsive defrosting setting and indoor unit will send compulsive defrosting signal to outdoor unit When the outdoor unit receives compulsive defrosting signal it will operate in normal defrosting mode When the indoor unit receives the information that outdoor unit has
23. on display light 5 icon is displayed Function Introduction for Combination Buttons Child lock function Press and simultaneously to turn on or turn off child lock function When child lock function is on icon is displayed on remote controller If you operate the remote controller it won t send signal Temperature display switchover function Under OFF status press and MODE buttons simultaneously to switch temperature display between C and F Technical Information Service Manual Operation Guide 1 After putting through the power press ON OFF button on remote controller to turn on the air conditioner 2 Press MODE button to select your required mode AUTO COOL DRY FAN HEAT 3 Press or button to set your required temperature Temperature can t be adjusted under auto mode 4 Press button to set your required fan speed auto low medium and high speed 5 Press 3I button to select fan blowing angle 80000 Replacement of Batteries in Remote Controller 1 Press the back side of remote controller marked with as shown in the fig and then push out the cover of battery box along the arrow direction 2 Replace two 7 1 5V dry batteries and make sure the position of polar and polar are correct 3 Reinstall the cover of battery box Note Signal sender Battery e During operation point the remote control signal sender at the
24. 5 GREE Change for Life Service Manual Model GWHO9MB K3DNE3G 12 Refrigerant R410A GREE ELECTRIC APPLIANCES INC OF ZHUHAI Service Manual Table of Contents Part Technical Information ee 1 1 1 2 6 E E 2 Zall Sp cification Sheet E 2 2 2 Operation CharacteriStie GUIS uq iouis e CHR PD E NEUE 4 2 9 Capacity Variation Ratio According to Temperature eire 4 2 4 Cooling and Heating Data Sheet in Rated Frequency 5 2 9 NoiSe CUNG s D 3 Outline Dimension Diagram 22 2 4410 6 Sar Inr DI 6 32 Q tdoor iu M CEP 6 4 Refrigerant System Diagram M 7 5 Electrical Parteners 8 5T Wiring oom 8 5 2 POB Printed 10 6 Function and Control ee 12 6 1 Remote Controller Introduction 12 6 2 Brief Description Modes and tunc staan 16 Part Installation and Maintenance _ 22 T Notes for Installation and
25. 65 70 75 5 Connect Outdoor Electric Wire 1 Remove the wire clip connect the power cord to the wiring terminal according to the color fix them with screws As show in Fig 23 OUTDOOR UNIT connection cord Grounding m Wiring board d Wire clip Handle Power Note the wiring connect is for reference only Fig 23 please refer to the actual one 2 Fix the power connection wire with wire clip 3 Fix the stopper on handle with screw A Note 1 After tightening the screw pull the power cord slightly to check if it is firm 2 Never cut the power connection wire to prolong or shorten the distance 6 Neaten the Pipes 1 The pipes should be placed along the wall bent reasonably and hidden possibly Min semidiameter of bending the pipe is 10cm 2 If the outdoor unit is higher 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 The drain hos can t raise upwards Fig 25 Fig 24 A Note 1 The through wall height of drain hose shouldn t be higher than the outlet pipe hole of indoor unit As show in Fig 25 2 Slant the drain hose slightly downwards The drain hose can t be curved raised and fluctuant etc As show in Fig 26 29 3 water outlet can t placed water order to drain smoothly As s
26. Bearing 26152022 26152022 1 17 Drainage hose 0523001401 0523001401 1 18 Wall Mounting Frame 01252021 01252021 1 19 Evaporator Assy 01002424 01002953 1 20 Evaporator Support 24212091 24212091 1 21 Cold Plasma Generator Sub assy 22 Connecting Cable 4002052317 4002052317 0 23 Power Cord 24 2611216402 2611216402 1 25 Fan Motor 150120874 150120874 1 26 Motor Press Plate 26112161 26112161 1 27 Rubber Plug Water Tray 76712012 76712012 1 28 Step Motor 1521212901 1521212901 1 29 Crank 10582070 10582070 1 30 Electric Box Assy 10000200890 10000200891 1 31 Electric Box 2011208201 2011208201 1 32 Terminal Board 42011233 42011233 1 33 Shield cover of Electric Box sub assy 01592073 01592073 1 34 Electric Box Cover1 22242135 22242135 1 35 Capacitor CBB61 33010747 33010747 1 36 Jumper 4202300106 4202300105 1 37 Ambient Temperature Sensor 390000453 390000453 1 38 Main Board 30138000404 30138000404 1 39 Temperature Sensor 390000599 390000599 1 40 Remote Controller 305100491 305100491 1 Above data is subject to change without notice 57 e Installation and Maintenance 10 2 Outdoor Unit GWHO09MB K3DNES3G O CB404W03600 CB404W03601 58 Installation and Maintenance 59 NO Description Part Code Qty GWHO9MB K3DNE3G O Product Code CB404W03600 1
27. D the included angle between L D is the same The air deflector will be closed at 0 Location and the swinging is effectual only on condition that setting the swinging order and the inner fan is running The indoor fan and compressor may get the power when air deflector is on the default location heating angle cooling angle O 0 L1 L 1 1 1 C 01 D 10 Display D Operation pattern and mode pattern display All the display patterns will display for a time when the power the operation indication pattern will display in red under standby status When the machine is start by remote control the indication pattern will light and display the current operation mode the mode light includes Cooling heating and dehumidify If you close the light key all the display patterns will close 2 Double 8 display According to the different setting of remote control the nixie light may display the current temperature the temperature scope is from 16 to 30 and indoor ambient temperature The set temperature displayed in auto cooling and fan mode is 25 and the set temperature displayed in auto heating mode is 20 C Under heating mode nixie tube displays H1 or heating indicator is off 0 55 and blinks 10s in defrosting If you set the fahrenheit temperature display the nixie light will display according to fahrenheit temperature 11 Protection function and failure display 2 Freeze proofing protection E4 Exhausting
28. Front Grill 22413008 1 2 Front Panel Assy 0153304801 1 3 Axial Flow Fan 10333004 1 4 Chassis Sub assy 0280330401P 1 5 Clapboard Sub Assy 0123338502 1 6 Drainage Connecter 06123401 1 7 Compressor Gasket 76710302 3 8 4 Way Valve Assy 03073151 1 9 Valve Support 0171314201P 1 10 Cut off Valve Assy 071302391 1 11 Valve 07100003 1 12 Valve Support Block 26113017 2 13 Right Side Plate Sub Assy 0130317801 1 14 Big Handle 26233433 1 15 Magnet Coil 4300040050 1 16 Magnet Coil 4300876701 1 17 Rear Grill 01473009 1 18 Temperature Sensor 3900030805 1 19 Magnetic Ring 49010109 1 20 Reactor 43130184 1 21 Wire Clamp 71010003 2 22 Terminal Board 42010313 1 23 Electric Box Assy 10000100126 1 24 Main Board 30138000446 1 25 Electric Box 20113032 1 26 Electric Box Sub Assy 10000500040 1 27 Top Cover Sub Assy 0125307002 1 28 Condenser Assy 01100200141 1 29 Motor Support 01703104 1 30 Fan Motor 1501308506 1 31 Compressor and Fittings 0010389601 1 32 Small Handle 26233100 1 Above data is subject to change without notice e Installation and Maintenance 60 NO Description Part Code Qty GWHO9MB K3DNE3G O Product Code CB404W03601 1 Front Grill 22413008 1 2 Front Panel Assy 0153304801 1 3 Axial Flow Fan 10333004 1 4 Chassis Sub assy 0280330401P 1 5 Clapboard Sub Assy 0123
29. OEE o N of NES i ce Ot Es o a 1 T co MC EC zen DS SS a ates en lt 4 4 MM CAD CI ee SaaS Ent em e Outdoor temp Outdoor temp C Technical Information Service Manual 2 4 Cooling and Heating Data Sheet in Rated Frequency Cooling Pressure of gas pipe Inlet and outlet pipe connecting indoor and temperature of heat Fan speed of Fan speed of Compressor outdoor unit exchanger indoor unit outdoor unit revolution rps Tie 1200 27 19 35 24 0 9 1 1 121015 65038 iE High Rated cooling condition C DB WB Model 12K 60 Pressure of gas pipe Inlet and outlet pipe connecting indoor and temperature of heat Fan speed of Fan speed of Compressor outdoor unit exchanger indoor unit outdoor unit revolution rps P MPa neo mco 35 to 63 20 7 6 2 2 2 4 35 to 65 Instruction T1 Inlet and outlet pipe temperature of evaporator T2 Inlet and outlet pipe temperature of condenser P Pressure at the side of big valve Connection pipe length 5 m Rated heating condition C DB WB 2 5 Noise Curve Indoor side noise when blowing 45 p p
30. during 54 Defrosting blinking PE ON 10s 7 0 55 Installation and Maintenance A C status Possible Causes Defrosting will occur in heating mode Compressor will operate while indoor fan will stop operation Its the normal state 37 9 2 Troubleshooting for Malfunction 1 Malfunction of Temperature Sensor F1 F2 Troubleshooting for F1 F2 malfunction Y Is the wiring terminal between the temperature sensor andthe controller loosened or poorly contacted Insert the temperature sensor tightly Is there short circuit due to trip over of the parts 1 the parts upright no malfunctio eliminated yesa v Is the emperature sensor normal accordin to the Resistance no Table Vv Replace it with a temperature sensor with the same model yes 5 4 no 15 malfunction y remo Replace the mainboard with the same model yes End 38 Service Manual Installation and Maintenance Service Manual 2 Malfunction of Blocked Protection of IDU Fan Motor H6 Troubleshooting for H6 malfunction Stir the blade with a tool to see whether the blade rotates n Tighten the screw reassemble the blade motor and shaft bearing rubber base sub assy to make sure there is no foreign object between them h
31. entered defrosting it will cancel sending compulsive defrosting signal to outdoor unit Heating indicator on indoor unit is off for 0 5s and then blinks for 10s 2 Condition of exiting compulsive defrosting function The condition of exiting compulsive defrosting function is the same as that in normal defrosting after finishing defrosting outdoor unit will send the signal of normal operation mode to indoor unit and when the indoor unit receives the signal it will operate in normal mode 16 Refrigerant recycling function 1 Condition of entering refrigerant recycling function Within 5min of energizing turning on the unit in cooling mode of 16 C continuously press light button for 3 times within 3s to enter refrigerant recycling mode Fo is displayed and send refrigerant recycling signal to outdoor unit 2 Condition of exiting refrigerant recycling mode After entering refrigerant recycling mode when receive any remote control signal or enter refrigerant recycling mode for 25min the unit will exit refrigerant recycling mode Operation after refrigerant recycling mode indoor unit runs in cooling mode fan speed is super high set temperature 16 and the horizontal louver opens to the min angle Operation after exiting refrigerant recycling mode indoor unit will run is the set status of last time Technical Information Service Manual Part Installation and Maintenance 7 Notes for Installation and Maintenance Safety Precautions I
32. operation all loads stop 1 Poor air return in indoor unit 2 Fan speed is abnormal 3 Evaporator is dirty 1 In defect of refrigerant 2 Indoor evaporator temperature sensor works abnormally 3 The unit has been plugged up somewhere Please refer to the malfunction analysis discharge protection overload Overcurrent protection Communi cation Malfunction During cooling and dryi operation compressor and outdoor fan stop while indoor fan operates During heating operation all loads stop ng During cooling operation compressor stops while indoor fan motor operates During heating operation the complete unit stops 1 Supply voltage is unstable 2 Supply voltage is too low and load is too high 3 Evaporator is dirty Refer to the corresponding malfunction analysis High temperature resistant protection EEPROM malfunction Limit decrease frequency due to high temperature of module El E2 E4 E5 E6 E8 Malfunction protection of jumper cap 10 During cooling operation compressor will stop while indoor fan will operate During heating operation the complete unit stops During cooling and drying operation compressor will stop while indoor fan will operate During heating operation the complete unit will stop All loads operate normally while operation frequency for compressor is decreased Wireless remote receiver and butto
33. outdoor unit only for cooling and heating unit connect outdoor unit Make the bound pipes pass through the wall hole and then Connect pipes of outdoor unit Connect wires of outdoor unit Neaten the pipes Vacuum pumping and leakage detection Check after install ation and test operation Finish installation Note this flow is only for reference please find the more detailed installation steps in this section Installation and Maintenance 25 8 2 Installation Parts checking indoor unit 8 Sealing gum Outdoor unit 9 Wrapping tape Connecti ntib Support of outdoor unit a 12 13 Drainage plug cooling heating unit Connecting Owner s manual cable power cord remote controller 4 Drainage pipe 11 Fixingscrew Wall pipe A Note 1 Please contact the local agent for installation 2 Don t use unqualified power cord 8 3 Selection of Installation Location 1 Basic Requirement Installing the unit in the following places may cause malfunction If it is unavoidable please consult the local dealer 1 The place with strong heat sources vapors flammable or explosive gas or volatile objects spread in the air 2 The place with high frequency devices such as welding machine medical equipment 3 The place near coast area 4 The place with oil or fumes in the air 5 The place with sul
34. positioned so that the plug is accessible 5 An all pole disconnection switch having a contact separation of at least 3mm in all poles should be connected in fixed wiring 6 Including an air switch with suitable capacity please note the following table Air switch should be included magnet buckle and heating buckle function it can protect the circuit short and overload Caution please do not use the fuse only for protect the circuit 8 5 Installation of Indoor Unit 1 Choosing Installation location Recommend the installation location to the client and then confirm it with the client 2 Install Wall mounting Frame 1 Hang the wall mounting frame on the wall adjust it in horizontal position with the level meter and then point out the Screw fixing holes on the wall 2 Drill the screw fixing holes on the wall with impact drill the specification of drill head should be the same as the plastic expansion particle and then fill the plastic expansion particles Installation and Maintenance Service Manual in the holes 3 Fix the wall mounting frame on the wall with tapping screws 5 4 2 25 and then check if the frame is firmly installed by pulling the frame If the plastic expansion particle is loose please drill another fixing hole nearby 3 Install Wall mounting Frame 1 Choose the position of piping hole according to the direction of outlet pipe The position of piping hole should be a little lower than
35. protection Overcurrent protection E6 Communication failure E8 Overload protection F1 Indoor ambient sensor start and short circuit continuously measured failure in 5S F2 Indoor evaporator sensor start and short circuit continuously measured failure in 5S F3 Outdoor ambient sensor start and short circuit continuously measured failure in 30S Technical Information Service Manual F4 Outdoor condenser sensor start and short circuit continuously measured failure in 30S and dont measure within 10 minutes after defrosted F5 Outdoor exhausting sensor start and short circuit continuously measured failure in 30S after the compressor operated 3 minutes H3 Overload protection of compressor H5 Module protection PH High voltage protection PL Low voltage protection 1 Nominal cooling and heating P2 Maximum cooling and heating P3 Medium cooling and heating PO Minimum cooling and heating 12 Drying Function You may start or stop the drying function under the modes of cooling and dehumidify at the starting status The modes of automatism heating and air supply do not have drying function When you start the drying function after stop the machine by pressing the switch button you should keep running the inner fans for 2 minutes under low air damper The swing will operate as the former status within 2 minutes cooling indicator is on for 0 5s and then off for 10s in drying and other load is stopped then stop the en
36. receiving window on indoor unit e The distance between signal sender and receiving window should be no more than 8m and there should be no obstacles between them e Signal may be interfered easily in the room where there is fluorescent lamp or wireless telephone remote controller should be close to indoor unit during operation Cover of e Replace new batteries of the same model when replacement is required battery box e When you don t use remote controller for a long time please take out the batteries e If the display on remote controller is fuzzy or there s no display please replace batteries Technical Information 15 Service Manual 16 6 2 Brief Description of Modes and Functions 1 Temperature Parameters Indoor preset temperature preset Indoor ambient temperature T amb 2 Basic Functions Once energized in no case should the compressor be restarted within less than 3 minutes In the situation that memory function is available for the first energization if the compressor is at stop before de energization the compressor will be started without a 3 minute lag if the compressor is in operation before de energization the compressor will be started with a 3 minute lag and once started the compressor will not be stopped within 6 minutes regardless of changes in room temperature 1 COOL mode Q The condition and process of cooling If Tamb gt T preset COOL mode will act the compressor and outdo
37. 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 hard objects 9 If power cord or connection wire is broken it must be replaced by a qualified person 22 10 If the power cord or connection wire is not long enough please get the specialized power cord or connection wire from the manufacture or distributor Prohibit prolong the wire by yourself 11 For the air conditioner without plug an air switch must be installed in the circuit The air switch should be all pole parting and the contact parting distance should be more than 3mm 12 Make sure all wires and pipes are connected properly and the valves are opened before energizing 13 Check if there is electric leakage on the unit body If yes please eliminate the electric leakage 14 Replace the fuse with a new one of the same specification if it is burnt down don t replace it with a cooper wire or conducting wire 15 If the unit is to be installed in a humid place the circuit breaker must be installed Installation Safety Precautions 1 Select the installation location according to the require ment of this manual See the requirements in installation part 2 Handle unit transportation with care the unit should not be carried by only one person if it is more than 20kg 3 When installing the indoor unit and outdoor unit a suffi cient fixing bo
38. the temperature will decrease 1 C by every hour after sleep function is set the temperature will not change after decreasing 2 C 2 4 When the initial set temperature is 28 30 C the temperature will decrease 1 C by every hour after sleep function is set the temperature will not change after decreasing 3 C Relationship between set temperature and running time Initial Temp Running time T 16 16 17 18 19 19 20 21 22 23 24 25 25 26 27 6 Indoor Fan Conirol The Indoor Fan can be set as HIGH MED LOW by remote control and the Indoor Fan will be respectively run at high medium low speed It will also be set as AUTO and the Indoor Fan is as the followings at the automatic wind speed Technical Information 19 20 Service Manual D Cooling mode in auto cooling mode or normal cooling mode the auto fan speed will run at below mode a When Tamb 2Tpreset 2 C the indoor fan will run at high speed b When Tpreset lt Tamb lt Tpreset 2 C the indoor fan will run at middle speed c Tamb STpreset the indoor fan will run at low speed Switches between high speed and middle speed middle speed and low speed high speed and low speed running time of 3 5 minutes must be ensured 2 Heating mode in auto heating mode or normal heating mode the auto fan speed will run at below mode a When Tamb sTpreset 1 C the indoor fan will run at high speed b When Tpreset 1 C lt Tamb lt Tpreset 3 C the i
39. time icon on remote controller will blink Pess or button within 5s to set clock time Each pressing of or button clock time will increase or decrease 1 minute Hold or button 2s later time will change quickly Release this button when reaching your required time Press CLOCK button to confirm the time icon stops blinking Note e Clock time adopts 24 hour mode e The interval between two operation can t exceeds 5s Otherwise remote controller will quit setting status Operation for TIMER ON TIMER OFF is the same 7 TIMER ON TIMER OFF Button e TIMER ON button TIMER ON button TIMER button can set the time for timer on After pressing this button icon disappears and the word ON on remote Technical Information 13 14 Service Manual controller blinks Press or button to adjust TIMER ON setting After each pressing or TIMER ON setting will increase or decrease 1min Hold or button 2s later the time will change quickly until reaching your required time Press TIMER ON to confirm it The word will stop blinking icon resumes displaying Cancel TIMER ON Under the condition that TIMER ON is started press TIMER button to cancel it e TIMER OFF button TIMER OFF button can set the time for timer off After pressing this button icon disappears and the word OFF on remote controller blink
40. 10000200891 1 31 Electric Box 2011208201 2011208201 1 32 Terminal Board 42011233 42011233 1 33 Shield cover of Electric Box sub assy 01592073 01592073 1 34 Electric Box Cover1 22242135 22242135 1 35 Capacitor CBB61 33010747 33010747 1 36 Jumper 4202300106 4202300105 1 37 Ambient Temperature Sensor 390000453 390000453 1 38 Main Board 30138000410 30138000410 1 39 Temperature Sensor 390000599 390000599 1 40 Remote Controller 305100491 305100491 1 Above data is subject to change without notice 56 e Installation and Maintenance NO Description Part Code Qty GWHO9MB KS3DNES3G I GWH12MB K3DNE3G Product Code 404 03601 404 03501 1 Front Panel 2001288801P 2001288801P 1 2 Display Board 30565144 30565144 1 3 Filter Sub Assy 1112220403 1112220403 2 4 Electric Box Cover2 2010249602 2010249602 1 5 Screw Cover 242520172 242520172 1 6 Front Case Sub Assy 2001213923 2001213923 1 7 Axile Bush 1054203602 1054203602 1 8 Guide Louver 1051215701 1051215701 1 9 Air Louver 1 1051215601 1051215601 1 10 Air Louver 2 1051215501 1051215501 1 11 Helicoid tongue 2611216301 2611216301 1 12 Left Axile Bush 10512037 10512037 1 13 Rear Case assy 2220210311 2220210311 1 14 Cross Flow Fan 10352017 10352017 1 15 O Gasket sub assy of Bearing 7651205102 7651205102 1 16 Ring of
41. 12 Soldering appliance refrigerant container 23 Service Manual 8 Installation 8 1 Installation Dimension Diagram Space to the wall 5cm p ut Space to 00cm 250 Above cm outlet side Space to the floor The dimensions of the space necessary for correct installation of the appliance including the minimum permissible distances to adjacent structures 2 C Space to the obstruction amp MB Air inlet side d 2 e 2 VC E 1 P os _ Space to the wall 6 Above gt eec Air outlet side 24 Installation and Maintenance Service Manual Installation procedures Start installation Preparation before installation Read the requirements select installation P repare tools for electric connection location Select indoor unit installation location Select outdoor unit installation location Install wall mounting frame drill wall holes Connect pipes of indoor unit and drainage pipe Connect wires of indoor unit Bind up pipes and hang the indoor unit Install the support of outdoor unit select it according to the actual situation Fix outdoor unit Install drainage joint of
42. 22 8 InstallatiON rine tetek enten 24 8 1 Installation Dimension DIA nnen eneen teen beden 24 8 2 Installation 26 8 3 Selection of Installation Location 26 8 4 Electric Connection 26 8 5 Installation of Indoor EIN neren eten 26 On UIC GOP 29 8 7 Vacuum Pumping and Leak Detection duties 30 8 8 Check after Installation and Test Operation nnr rn nnne ne 30 ee Table of contents Service Manual 9 Maintenance ssec 31 em d4vic idc DTE 31 9 2 Troubleshooting Tor Main Malfunction 38 9 3 Troubleshooting ror Normal asten 53 10 Exploded View and Parts List 55 dii em TTD 55 102 Uses C C RM 58 11 Removal Procedure 64 11 1 Removal Procedure or Indoor Unit sss 64 11 2 Removal Procedure of Outdoor 4444444220 67 Appendix 72 Appendix 1 Reference Sheet of Celsius and Fahrenheit 2 72 Appendix 2 Configuration of Connection PIBE armies rheenen 72 Appendix 3 Pipe Expandin
43. 338502 1 6 Drainage Connecter 06123401 1 7 Compressor Gasket 76710302 3 8 4 Way Valve Assy 03073151 1 9 Valve Support 0171314201P 1 10 Cut off Valve Assy 071302391 1 11 Valve 07100003 1 12 Valve Support Block 26113017 2 13 Right Side Plate Sub Assy 0130317801 1 14 Big Handle 26233433 1 15 Magnet Coil 4300040050 1 16 Magnet Coil 4300876701 1 17 Rear Grill 01473009 1 18 Temperature Sensor 3900030805 1 19 Magnetic Ring 49010109 1 20 Reactor 43130184 1 21 Wire Clamp 71010003 2 22 Terminal Board 42010313 1 23 Electric Box Assy 10000100175 1 24 Main Board 30138000449 1 25 Electric Box 20113032 1 26 Electric Box Sub Assy 10000500082 1 27 Top Cover Sub Assy 0125307002 1 28 Condenser Assy 01100200141 1 29 Motor Support 01703104 1 30 Fan Motor 1501308506 1 31 Compressor and Fittings 0010389601 1 32 Small Handle 26233100 1 Above data is subject to change without notice e Installation and Maintenance GWH12MB K3DNE3G 0 CB404W03500 CB404W03501 ATS y ww AW i 61 Installation and Maintenance 62 Description Part Code Qty GWH12MB K3DNE3G O Product Code CB404W03500 1 Front Grill 22413008 1 2 Front Panel Assy 0153304801 1 3 Axial Flow Fan 10333004 1 4 Chassis Sub assy 02803304P 1 5 Clapboard Sub Assy 0123338502 1 6 Drainage Co
44. Assy 071302391 1 11 Valve 07100003 1 12 Valve Support Block 26113017 2 13 Right Side Plate Sub Assy 0130317801 1 14 Big Handle 26233433 1 15 Magnet Coil 4300040050 1 16 Magnet Coil 4300876701 1 17 Rear Grill 01473009 1 18 Temperature Sensor 3900030805 1 19 Magnetic Ring 49010109 1 20 Reactor 43130184 1 21 Wire Clamp 71010003 2 22 Terminal Board 42010313 1 23 Electric Box Assy 10000100174 1 24 Main Board 30138000448 1 25 Electric Box 20113032 1 26 Electric Box Sub Assy 10000500083 1 27 Top Cover Sub Assy 0125307002 1 28 Condenser Assy 01100200142 1 29 Motor Support 01703104 1 30 Fan Motor 1501308506 1 31 Compressor and Fittings 0010389601 1 32 Small Handle 26233100 1 Above data is subject to change without notice Installation and Maintenance Service Manual 11 Removal Procedure N Caution discharge the refrigerant completely before removal 11 1 Removal Procedure of Indoor Unit Steps Procedure 1 Remove panel Open the front panel Push the rotor shaft on both sides of the panel to make it separate from the groove Remove the panel 2 Remove filter Loosen the clasp of the filter Push the filter inward and then draw it upward to remove it 3 Remove horizontal louver and front case Remove axial sleeve of horizontal louver Bend the louver outwards and then remove the louver Loosen the screws of the electric box cover2 with screwdriver Remove the electric box
45. Outdoor side noise when Compressor speed changed 55 P 09K e 8 50 12 2 2 2 2 v EPI NM ed 45 Supper High High Middle Low 20 30 40 50 60 70 75 Indoor fan motor rotating speed Compressor Speed rps Technical Information Service Manual 3 Outline Dimension Diagram 3 1 Indoor Unit 845 180 9 0 LJ MS 3 2 Outdoor Unit 257 714 OvG 286 510 Unit mm 6 Technical Information Service Manual 4 Refrigerant System Diagram Cooling and heating model Indoor unit Gas pipe side Outdoor unit Heat 22 Compressor Heat T exchanger 2 pipe condenser De C Valve Strainer Electron Strainer pe expansion valve Connection pipe specification Liquid 1 4 Gas 3 8 9 52 Technical Information COOLING HEATING Service Manual 5 Electrical Part 5 1 Wiring Diagram elnstruction ORo YEGN ellow Green
46. T DRY and AUTO Modes Overload protection T tube measured temperature of outdoor heat exchanger under cooling mode and measured temperature of indoor heat exchanger under heating mode 1 Cooling overload a If T tubes52 C the unit will return to its original operation state b tubez55 C frequency rise is not allowed If T tube 58 C the compressor will run at reduced frequency d If T tube262 C the compressor will stop and the indoor fan will run at preset speed 2 Heating overload a If T tubes50 C the unit will return to its original operation state b If T tube253 C frequency rise is not allowed c If T tube256 C the compressor will run at reduced frequency d If T tube260 C the compressor will stop and the indoor fan will blow residue heat and then stop 2 Exhaust temperature protection of compressor If exhaust temperature gt 98 frequency is not allowed to rise If exhaust temperature gt 103 the compressor will run at reduced frequency If exhaust temperature gt 110 the compressor will stop If exhaust temperature lt 90 C and the compressor has stayed at stop for at least 3 minutes the compressor will resume its operation Communication fault If the unit fails to receive correct signals for durative 3 minutes communication fault can be justified and the whole system will stop Module protection Under module protection mode the compressor will stop When the compresso
47. aged During cooling and drying Operation indoor unit operates while other loads will stop during heating operation the complete unit will stop operation 1 Loosening or bad contact of Indoor AC stops operation once evaporator temp sensor and reaches the setting mainboard terminal evaporator temperature Cooling drying on the mainboard a down leads short circuit operation while other loads 3 Indoor evaporator temp sensor stop operation heating AC damaged check temp sensor stop operation value chart for testing 4 Mainboard damaged Indoor internal fan motor stops During cooling and drying operating compressor stops while indoor fan operates During heating operation the complete unit will stop operation During cooling and drying OFF 1S operation compressor stops and while indoor fan will operate blink During heating operation 5 times the complete unit will stop operation During cooling and drying 1 0utdoor temperature sensor operation compressor will sop hasnt been connected well or is OFF 1S after operating for about 3 damaged Please check it by and mins referring to the resistance table for blink while indoor fan will operate temperature sensor 7 times During heating operation the 2 head of temperature sensor complete unit will stop after hasnt been inserted into the copper operating for about 3 mins tube OFF 1S and blink 6 times Outdoor temperature sensor hasnt
48. ation and Maintenance Service Manual 11 2 Removal Procedure of Outdoor Unit Warning Be sure to wait for a minimum of 20 minutes after turning off all power supplies and discharge the refrigerant completely before removal Procedure 1 Remove big handle Before disassamble Remove 1 connection screw fixing big handleand then removethe big handle big handle 2 Remove top cover top cover Remove 3 connection screws among top cover plate front panel and right sideplate Then remove top cover plate 67 Installation and Maintenance Remove connection screws between the front grille and the front panel Then remove the front grille Remove connection screws connecting the front panel with the chassis and the motor support and then remove the front panel 4 Remove axial flow blade Remove the nut fixing the blade and then remove the axial flow blade 5 Remove right side plate Remove connection screws connecting the right side plate with the valve support and the electric box Then remove the right side plate Installation and Maintenance Grille Axial flow blade Service Manual Ses Proce ___ O 3 Remove g
49. been connected well or is damaged Please check itby referring to the resistance table for temperature sensor Outdoor temperature sensor hasnt been connected well or is damaged Please check it by referring to the resistance table for temperature sensor OFF 15 All loads operate normally and while blink operation frequency for 3 times compressor is decreased Refer to the malfunction analysis overload high temperature resistant All loads operate normally while operation frequency for overcurrent compressor is decreased The input supply voltage is too low System pressure is too high and overload 32 Installation and Maintenance Service Manual Display Method of Indoor Unit Indicator Display during Dual 8 blinking 0 55 and OFF Code 0 25 Display Malfunction Name Operation Cool Indicator Indicator Voltage for DC bus bar is too high Voltage of DC bus bar is too low during blinking ON ON 0 25s 0 25s and OFF fand OFF during blinking during blinking during blinking during blinking ON ON 0 25s 0 25s and OFF fand OFF 0 25s 0 255 during blinking frequence in test state Installation and Maintenance Heating Yellow Red Indicator Indicator Indicator Display Method of Outdoor Unit Indicator has 3 kinds of display status and during blinking ON 0 5s and OFF 0 5s status Green Indicator All loads operate nor
50. blockage ice plug greasy blockage the Y valve hasn t been opened completely no no Flush the heat exchangers with high pressure nitrogen no alfunction is Is the compressor running abnormally 15 there abnormal sound or oil leakage is the temperature of the shell too high etc yes Replace the mainboard with the same model no Malfunction is eliminated Replace the mainboard with the same model 4 Y End Installation and Maintenance Service Manual 42 5 Malfunction of Zero crossing Inspection Circuit Malfunction of the IDU Fan Motor U8 Troubles hooting for U8 malfunction Re energizel minute after de erergization U8 is still displayed Yes zero cross detection circuit of the mainboard is defined abnormal Replace the mainboard with the same model End The unit returns to normal Conclusion U8 is displayed due to instant energization afte de energization while the capacitor discharges slowly No gt Installation and Maintenance Service Manual 6 Capacity charging malfunction outdoor unit malfunction AP1 below means control board of outdoor unit Main detection points Detect if the voltage of L and N terminal of XT wiring board is between 210VAC 240VAC by alternating voltage meter reactor wel
51. connected Under ambient temperature est the resistance of overload protector with ohmmeter resistance value should be lt 1000ohm If the wiring terminal FA of electronic expansion valve is well connected Y 2 Replace EKV coil of electronic expansion valve N Connect wire according to wiring diagram eliminated Check the situation of refrigerant if there is leakage please charge refrigerant according to the service manual eliminated Compressor overload protection terminal is not connected well with the mainboard reconnect them correctly eliminated N eat 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 eliminated N Too much load of the system causes high temperatur of compressor after working for a long time decrease the load for operation eliminated v Replace outdoor mainboard AP 1 End 15 the malfunction Is the malfunction Is the malfunction Is the malfunction Is the malfunction Installation and Maintenance Service Manual 11 PFC correction for power factor malfunction outdoor unit malfunction Main detection points Check if power plug is connected well with the socket Check if the reactor of outdoor un
52. cover2 Open the screw cap on the front case Remove the screws fixing the front case Loosen the six clasps of the front case Remove the front case S Horizontal Louver Installation and Maintenance 64 Service Manual SER EN ON 2977 LIR i Auxiliary Piping B Electric Box Assy aporator Display Board i Procedure connecting pipe Remove press plate of Remove the 3 screws at the joint of the evaporator and rear case Adjust slightly the pipe on the evaporator Remove the evaporator Remove the screws of the press plate of connecting pipe oo gt p 5o gt x 55 or gt sS 9 oD 25 gt oo Remove the screws of the electric box assy Remove the screws at the joint of the earthing wire and evaporator Loosen the clasp at the joint of the electric box 4 Remove electric box assy 5 Remove evaporator Installation and Maintenance 65 Service Manual Procedure 6 Remove motor and axial flow blade cross flow blade and the motor Take Remove the screws at the joint of the down the motor o ag _ oe o 0 Eo oa 5g uw O o gt oo Le ES c o Remove screws of step motor and then remove the motor Motor Press Plate Remove the cross flow blade Cross Flow Blade 66 Install
53. dicator OFF 1S and blink 14 times A C status During cooling and drying operation compressor will stop while indoor fan will operate During heating operation the complete unit will stop operation During cooling and drying operation compressor will stop while indoor fan will operate During heating operation the complete unit will stop operation Internal fan motor external fan motor compressor and electric heater stop operation guide louver stops at present location During cooling and drying operation compressor will stop while indoor fan will operate During heating operation the complete unit will stop operation During cooling and drying operation compressor will stop while indoor fan will operate During heating operation the complete unit will stop operation Outdoor DC fan motor Possible Causes Refer to the malfunction analysis overload high temperature resistant Refer to the malfunction analysis IPM protection loss of synchronism protection and overcurrent protection of phase current for compressor 1 Bad contact of DC motor feedback terminal 2 Bad contact of DC motor control end 3 Fan motor is stalling 4 Motor malfunction 5 Malfunction of mainboard rev detecting circuit Refer to the malfunction analysis IPM protection loss of synchronism protection and overcurrent protection of phase current for compressor Refer to the malfunction analysis
54. door set temperature indoor ambient temperature or outdoor ambient temperature on indoor unit s display The setting on remote controlleris selected circularly as below When selecting lt or no display with remote controller temperature indicator on indoor unit displays set temperature When selecting 0 with remote controller temperature indicator on indoor unit displays indoor ambient temperature When selecting 12 with remote controller temperature indicator on indoor unit displays outdoor ambient temperature Note Outdoor temperature display is not available for some models At that time indoor unit receives Q signal while it displays indoor set temperature e It s defaulted to display set temperature when turning on the unit There is no display in the remote controller e Only for the models whose indoor unit has dual 8 display 10 TURBO Button Under COOL or HEAT mode press this button to turn to quick COOL or quick HEAT mode icon is displayed on remote controller Press this button again to exit turbo function and icon will disappear 11 SLEEP Button Under COOL HEAT mode press this button to start up sleep function icon is displayed on remote controller Press this button again to cancel sleep function and icon will disappear 12 LIGHT Button Press this button to turn off display light on indoor unit 55 icon on remote controller disappears Press this button again to turn
55. e operation is normal or not e If the ambient temperature is lower than 16 C the air conditioner can t start cooling Installation and Maintenance Service Manual 9 Maintenance 9 1 Error Code List Display Method of Indoor Unit Indicator Display during Dual g Plinking 0 55 and OFF 0 55 Malfunction Name Cool Indicator Operation Indicator Heating Indicator High pressure protection of system Display Method of Outdoor Unit Indicator has 3 kinds of display status and during blinking ON 0 5s and OFF 0 55 Yellow Red Green Indicator Indicator Indicator status During cooling and drying operation except indoor fan operates all loads stop operation During heating operation the complete unit stops Possible Causes Possible reasons 1 Refrigerant was superabundant 2 Poor heat exchange including filth blockage of heat exchanger and bad radiating environment Ambient temperature is too high Antifreezing protection In defect of refrigerant High discharge temperature protection of compressor OFF 1S and blink 3 times OFF 1S and blink 9 times During cooling and drying operation compressor and outdoor fan stop while indoor fan operates The Dual 8 Code Display will show F0 and the complete unit stops During cooling and drying operation compressor and outdoor fan stop while indoor fan operates During heating
56. e wire or Replace the pes replace the connection wire according to wiring diagram Check the malfunction N V type with communication malfunction detector Is the malfunction eliminated Is the malfunction eliminated Replace outdoor T mainboard AP 1 alfunction of outdo ommunication circui Is the malfunction eliminated Replace indoor N mainboard AP 2 50 Installation and Maintenance Service Manual 13 Flow chart for outdoor communitcation circuit detecting 1 Test the voltage between N point of wiring board and communication cable with universal meter The voltage shall be variable Otherwise it might be malfunction of mainboard of indoor unit or malfunction of mainboard of outdoor unit or wrong wire connection of indoor and outdoor unit Please ensure that there is no malfunction of mainboard of indoor unit or wrong wire connection of indoor and outdoor unit After removing the malfunction of indoor unit remove the malfunction of outdoor unit 2 Test the voltage of pin 1 and pin 2 of U132 with universal meter voltage of both sides of R135 The voltage should be variable Test 10 Test the voltage of pin 3 and pin 4 of U132 with universal meter voltage of both sides of R1312 The voltage should be variable Test 15 Otherwise there is malfunction of mainboard of outdoor unit 3 Test the voltage
57. eck if the connection of PG motor feedback terminal is firm Check if the connectio of PG motor control yes Turn on the nit again measure whether the output louvers are opened wire on the mainboard Measure the voltage of this foot to neutral Installation and Maintenance 4 10 v Replace the mainboard with the same model voltage on control terminal for PG motor is morethan 50V within 1 min after the malfunctio eliminated n0o 4 v Insert the control terminal of PG motor tightly malfunction eliminated no v Reinstall the blade and motor correctly Is malfunction yes yes gt eliminated yes Is the motor started up no Y Replace PG motor s malfunction yes gt yes eliminated yes gt 4 39 Service Manual 3 Malfunction of Protection of Jumper Cap C5 Troubleshooting for C5 malfunction s there jumper cap on the mainboard Appearance of no the jumper cap Assemble the jumper cap with the same model yes 15 malfunction 4 eliminated Is the jumper cap inserted correctly and tightly Insert the jumper cap tightly yes lt no yes gt y Replace the jumper cap with the same model yes Is malfunction aie d
58. ed under auto mode e When setting TIMER ON TIMER OFF or CLOCK press or button to adjust time Refer to CLOCK TIMER ON TIMER OFF buttons 4 FAN Button Pressing this button can set fan speed circularly as auto AUTO low 4 medium 4 high 140 C 48 aa Note e Under AUTO speed the IDU fan motor will adjust the fan speed high medium or low speed according to ambient temperature e Fan speed under dry mode is low speed 5 31 Button Pressing this button can select up amp down swing angle Fan blow angle can be selected circularly as below S C gt gt 2 gt 1 gt gt 1 5 1 no display 24 _ I lt horizontal louvers 7 stops at current position e When selecting 3I air conditioner is blowing fan automatically Horizontal louver will automatically swing amp down at maximum angle e When selecting air conditioner is blowing fan at fixed position Horizontal louver will stop at the fixed position e When selecting M 2 zl air conditioner is blowing fan at fixed angle Horizontal louver will send air at the fixed angle Hold 3I button above 25 to set your required swing angle When reaching your required angle release the button Note UN Sol A may not be available When air conditioner receives this signal the air conditioner will blow fan automatically 6 CLOCK Button Press this button to set clock
59. essor will run at reduced frequency and if Itotal29A the compressor will stop and the outdoor fan will stop with a time lag of 30s 4 Fan Mode Under the mode the indoor fan will run at preset speed and the compressor the outdoor fan the four way valve and the electric heater will stop Under the mode temperature can be set within a range of 16 30 5 AUTO Mode Working conditions and process of AUTO mode a When T ambient 226 C the unit will operate in Cool mode The set temperature is 25 C b When T ambient x22 C the heat pump unit will operate in Heat mode set temperature be 20 C the cooling only unit will operate in Fan mode set temperature be 25 C c When 23 CST ambient lt 25 C the unit will operate in the previous state If it is energized for the first time it will operate in Fan mode d Under auto mode if its cooling mode operation frequency is same as that under cooling mode if its heating mode operation frequency is same as that under heating mode Technical Information Service Manual 18 2 Protection In cooling operation protection is the same as that under the cooling mode b In heating operation protection is the same as that under the heating mode c When ambient temperature changes operation mode will be converted preferentially Once started the compressor will remain unchanged for at least 6 minutes 6 Common Protection Functions and Fault Display under COOL HEA
60. fureted gas 6 Other places with special circumstances 2 Indoor Unit 1 There should be no obstruction near air inlet and air outlet 2 Select a location where the condensation water can be dispersed easily and won t affect other people 3 Select a location which is convenient to connect the outdoor unit and near the power socket 4 Select a location which is out of reach for children 5 The location should be able to withstand the weight of indoor unit and won t increase noise and vibration 6 The appliance must be installed 2 5m above floor 7 Don t install the indoor unit right above the electric appliance 8 The appliance shall not be installed in the laundry 3 Outdoor Unit 1 Select a location where the noise and outflow air emitted by the outdoor unit will not affect neighborhood 2 The location should be well ventilated and dry in which the outdoor unit won t be exposed directly to sunlight or strong wind 3 The location should be able to withstand the weight of outdoor unit 4 Make sure that the installation follows the requirement of installation dimension diagram 5 Select a location which is out of reach for children and far away from animals or plants If it is unavoidable please add fence for safety purpose 26 Service Manual 8 4 Electric Connection Requirement 1 Safety Precaution 1 Must follow the electric safety regulations when installing the unit 2 According
61. g Method 73 Appendix 4 List of Resistance for Temperature Sensor 74 Table of contents Service Manual Part Technical Information 1 Summary Indoor Unit GWHO9MB K3DNE3G GWH12MB K3DNE3G I Outdoor Unit GWHO9MB K38DNE3G 0 GWH12MB K3DNE3G O Remote Controller YT1F MOTO Technical Information 2 Specifications 2 1 Specification Sheet Mogel GWHO9MB K3DNE3G GWH12MB K3DNE3G Product Gods CB404003600 CB404003500 CB404003601 CB404003501 Rated Voltage V 220 240 220 240 Power Rated Frequency Hz 50 50 Supply Phases 1 1 Power Supply Mode Indoor Indoor Cooling Capacity 2600 600 3200 3500 600 3900 Heating Capacity 3000 800 3600 4000 880 4400 Cooling Power Input W 870 185 1300 1170 185 1400 Heating Power Input Min Max W 900 220 1400 1200 250 1550 Cooling Power Current A 3 8 5 2 Heating Power Current A 3 92 5 3 Rated Input W 1400 1600 Rated Current A 6 69 7 8 Air Flow Volume SH H M L SL ms h 600 500 400 300 600 500 400 300 Dehumidif
62. how in Fig 27 The drain hose can t be fluctuant The water outlet The drain hose lt x can t be fluctuant X in water cant be placed e The water be Fig 27 Fig 26 8 7 Vacuum Pumping and Leak Detection 1 Use Vacuum Pump 1 Remove the valve caps on the liquid valve and gas valve and the nut of refrigerant charging vent 2 Connect the charging hose of piezometer to the refrigerant charging vent of gas valve and then connect the other charging hose to the vacuum pump 3 Open the piezometer completely and operate for 10 15min to check if the pressure of piezometer remains in 0 1MPa 4 Close the vacuum pump and maintain this status for 1 2min to check if the pressure of piezometer remains in 0 1MPa If the pressure decreases there may be leakage 5 Remove the piezometer open the valve core of liquid valve and gas valve completely with inner hexagon spanner 6 Tighten the screw caps of valves and refrigerant charging vent As show in Fig 28 Liquid valve Gas valve Refrigerant charging vent Nut of refrigerant Charging vent Vacuum pump Inner hexagon spanner 6 Fig 28 2 Leakage Detection 1 With leakage detector Check if there is leakage with leakage detector 2 With soap water If leakage detector is not available please use soap water for leakage detection Apply soap water at the suspected position and keep
63. ion the complete unit will stop Malfunction of voltage dropping for DC bus bar During cooling and drying operation the compressor will Malfunction d Theres circuit malfunction on stop while indoor fan will of complete Non outdoor units control panel AP 1 units current please replace the outdoor units During heating operating detection A control panel AP 1 the complete unit will stop operation 1 Supply voltage is lower than abnormal Zero crossing malfunction of If this malfunction occurs AC175V during 2 Wiring terminal 4V is loosened or heating operation the complete broken unit will stop operation 3 4V is damaged please replace 4V During cooling operation compressor will stop while indoor fan will operate during Replace outdoor control panel AP 1 heating the complete unit will outdoor unit stop operation and blink 13 times Compressor running The and blink 8 times and blink 11 times 36 Installation and Maintenance Service Manual Display Method of Indoor Unit Display Method of Outdoor Unit Indicator Display during Indicator has 3 kinds of display Duakg blinking 0 55 and OFF status and during blinking ON 0 55 0 55 0 55 Malfunction Name Code Display Operation Cool Heating Yellow Red Green Indicator Indicator Indicator Indicator Indicator Indicator Normal OFF 0 55 communica and blink tion
64. it is damaged Malfunction diagnosis process power plug is connected well wils the socket Y Connectthe plug correctly Is the malfunction eliminated N Check the connection wire between reactor mainboard and situation of connection econnect the wire or Y replace the connection wire according to the wiring diagram If there is short circuit or the connection wire is loose Power on and restart the unit Is the malfunction eliminated Check the surface of reactor coil Power on and restart the unit If itis damaged Y Replace the reactor Is the malfunction eliminated N Replace outdoor N mainboard 1 End Installation and Maintenance Service Manual 12 Communication malfunction E6 Main detection points Check if the connection wire and the built in wiring of indoor and outdoor unit are connected well and without damage If the communication circuit of indoor mainboard is damaged If the communication circuit of outdoor mainboard AP1 is damaged Malfunction diagnosis process If the unit operates normally before malfunction lt Check the connection Y wire according to the wiring diagram Check built in wiring of indoor and outdoor unit If the connection wire is connected well N Reconnect th
65. k Outdoor Unit Connectio n Pipe Compressor Model Compressor Oil Compressor Type Compressor RLA Compressor Power Input Overload Protector hrottling Method Operation temp Ambient temp Cooling Ambient temp Heating Condenser Form ipe Diameter Rows fin Gap Coil Length LXDXW an Motor Speed Output of Fan Motor LANDA COMPRESSOR ZHUHAI LANDA COMPRESSOR La CO LTD 0912 190 FVC 68EP Rotary 16 5 4 9 950 1NT11L 6233 Electron expansion valve 16 30 15 48 15 24 Aluminum Fin copper Tube 1 1 4 710X19 05X508 900 650 CO LTD 0912 190 FVC 68EP Rotary 16 5 4 9 950 1NT11L 6233 Electron expansion valve 16 30 15 48 15 24 Aluminum Fin copper Tube 2 1 4 695X38 1X506 900 650 Fan Motor RLA an Motor Capacitor Air Flow Volume of Outdoor Unit an Type an Diameter Defrosting Method Climate Type solation Moisture Protection Permissible Excessive Operating Pressure for the Discharge Side Permissible Excessive Operating Pressure for the Suction Side ound Pressure Level H M L ound Power Level H M L Dimension WXHXD Dimension of Carton Box LXWXH Dimension of Package LXWXH Net Weight Ih mm E En 0 15 1600 Axial flow 400 Automatic Defrosting 1 24 4 3 2 5 51 63 776 540 320 848 360 580 851 363 595 28 0 0 15 1600 Axial flow 400 Automatic Defrosting 1 24 4 3 2 5 53
66. l connected Is connection wire loosened or pulled out Is reactor L damaged Turn on the unit and wait 1 minute Use AC voltmeter to measure the voltage on the two ends of electrolytic capacitor see fig 30 Malfunction of Y the outdoor Replace m Voltage higher than 200V mainboard AP 1 mainboard N Y Measure the voltage input with AC voltmeter see fig 30 Power supply is abnormal repair the power supply to restore the range between 180VAC 260VAC Voltage within 180VAC 260VAC Power on and restart the unit Y Y Shut down the power and wait 20 minutes or use DC voltmeter to measure the voltage on the two N ends of electrolytic capacitor until the voltage is lower than 20V Check the connection of reactor and connection wire Installation and Maintenance v Connect the fthe wiring of connection Power on and reactor L is normal N wire of reactor restart the unit L correctly Replace outdoor mainboard AP 1 N 43 Service Manual protection H5 desynchronizing malfunction H7 overcurrent of compressor phase current P5 AP1 below means control board of outdoor unit Main detection points Is voltage input within the normal range If the system pressure is too high If the refrigerant charging amount is appropriate If the work load of u
67. lt must be installed make sure the installation support is firm 4 Ware safety belt if the height of working is above 2m 5 Use equipped components or appointed components dur ing installation 6 Make sure no foreign objects are left in the unit after fin ishing installation Refrigerant Safety Precautions 1 Avoid contact between refrigerant and fire as it generates poisonous gas Prohibit prolong the connection pipe by welding 2 Apply specified refrigerant only Never have it mixed with any other refrigerant Never have air remain in the refrigerant line as it may lead to rupture or other hazards 3 Make sure no refrigerant gas is leaking out when installation is completed 4 If there is refrigerant leakage please take sufficient measure to minimize the density of refrigerant 5 Never touch the refrigerant piping or compressor without wearing glove to avoid scald or frostbite Improper installation may lead to fire hazard explosion electric shock or injury Installation and Maintenance Service Manual Main Tools for Installation and Maintenance 1 Level meter measuring tape 2 Screw driver 4 Electroprobe 5 Universal meter 7 Electronic leakage detector 8 Vacuum pump 10 Pipe pliers pipe cutter 11 Pipe expander pipe bender Installation and Maintenance 3 Impact drill drill head electric drill 6 Torque wrench open end wrench inner hexagon spanner 9 Pressure meter
68. mally while operation frequency for compressor is decreased OFF 1S and blink 4 times All loads operate normally while operation frequency for compressor is decreased During cooling and drying operation compressor will stop while indoor fan will operate During heating operation the complete unit will stop operation OFF 1S and blink 13 times During cooling and drying operation compressor will stop while indoor fan will operate During heating operation the complete unit will stop Possible Causes Overload or temperature is too high Refrigerant is insufficient Malfunction of electric expansion valve EKV Poor air return in indoor unit or fan speed is too low 1 Measure the voltage of position L and N on wiring 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 inputis normal measure the voltage of electrolytic capacitor C on control panel AP 1 if its normal theres malfunction for the circuit please replace the control panel AP 1 1 Measure the voltage of position L and N on wiring board XT if the voltage is higher than 150VAC turn on the unit after the supply voltage is increased to the normal range 2 If the AC inputis normal measure the voltage of electrolytic capacitor C on control panel AP 1 if its normal theres malfunction for the circuit please replace the control panel AP 1
69. mportant Please read the safety precautions carefully before installation and maintenance The following contents are very important for installation and maintenance Please follow the instructions below eThe installation or maintenance must accord with the instructions eComply with all national electrical codes and local electrical codes ePay attention to the warnings and cautions in this manual installation and maintenance shall be performed by distributor or qualified person eAll electric work must be performed by a licensed technician according to local regulations and the instructions given in this manual eBe caution during installation and maintenance Prohibit incorrect operation to prevent electric shock casualty and other accidents N Warnings Electrical Safety Precautions 1 Cut off the power supply of air conditioner before checking and maintenance 2 The air condition must apply specialized circuit and prohibit share the same circuit with other appliances 3 The air conditioner should be installed in suitable location and ensure the power plug is touchable 4 Make sure each wiring terminal is connected firmly during installation and maintenance 5 Have 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
70. n Malfunction of horizontal louver Horizontal louver can t swing Malfunction of the IDU fan motor The IDU fan motor can t operate Refer to troubleshooting for H6 for maintenance method in details Malfunction of the ODU fan motor The ODU fan motor can t operate 2 NeR Malfunction of compressor Compressor can t operate iat manne memod 3 Horizontal Louver Can t Swing Possible Causes Discriminating Method Air conditioner Status Troubleshooting Ls Connect wires according to wiring diagram to Wrong wir nnection or Check the wiring status according to circuit 47 Ong Wire connecuon poo 9 ording to c make sure all wiring terminals are connected connection diagram irmly Refrigerant is leaking Stepping motor is damaged Stepping motor can t operate Repair or replace stepping motor Others all normal while horizontal louver Main board is damaged e the main board with the same model Installation and Maintenance 53 54 Service Manual 4 ODU fan Motor Can t Operate Discriminating method air conditioner status Troubleshooting Connect wires according to wiring diagram to make sure all wiring terminals are connected Wrong wire connection or poor Check the wiring status according to circuit diagram Change compressor oil and refrigerant If no better replace the compressor with a new one Connect wires acco
71. n are effective but can not dispose the related command Refer to the malfunction analysis overload high temperature resistant Replace outdoor control panel AP 1 Discharging after the complete unit is de energized for 20mins check whether the thermal grease on IPM Module of outdoor control panel AP1 is sufficient and whether the radiator is inserted tightly If its no use please replace control panel AP 1 1 No jumper cap insert on mainboard 2 Incorrect insert of jumper cap 3 Jumper cap damaged 4 Abnormal detecting circuit of mainboard Installation and Maintenance 31 Service Manual Display Method of Outdoor Unit Indicator has 3 kinds of Display Method of Indoor Unit Indicator Display during display status and during Malfunction inki din Dual g Plinking 0 55 and OFF blinking ON 0 55 and OFF A C status Possible Causes 0 55 0 55 Display Operation Cool Heating Yellow Red Green Indicator Indicator Indicator Indicator Indicator Indicator When the outdoor unit receive OFF 15 signal of Gathering refrigerant and blink ithe system will be forced to Nominal cooling mode run under cooling mode for gathering refrigerant 1 Loosening or bad contact of indoor ambient temp sensor and mainboard terminal 2 Components in mainboard fell down leads short circuit 3 Indoor ambient temp sensor damaged check with sensor resistance value chart 4 Mainboard dam
72. nditioner Status Troubleshooting Confirm whether it s due to power failure If yes No power supply or poor After energization operation indicator isn t bright wait for power recovery If not check power onnection for power plug the buzzer can t give out sound upply circuit and make sure the power plug is connected well rong wire connection between indoor unit and outdoor unit Under normal power supply circumstances or poor connection for wiring operation indicator isn t bright after energization erminals Check the circuit according to circuit diagram and connect wires correctly Make sure all iring terminals are connected firmly Make sure the air conditioner is grounded reliably Make sure wires of air conditioner is connected correctly Check the wiring inside air conditioner Check hether the insulation layer of power cord is damaged if yes place the power cord fter energization air switch trips off Select proper air switch After energization operation indicator is bright Malfunction of remote controller while no display on remote controller or buttons have no action After energization room circuit breaker trips off at Electric leakage for air conditione C ge fo CO linee Replace batteries for remote controller Repair or replace remote controller 2 Poor Cooling Heating for Air Conditioner Possible Causes Discriminating Method Air conditioner Status Troubleshooting Set tem
73. ndoor fan will run at middle speed c Tamb 2Tpreset 3 C the indoor fan will run at low speed Switches between high speed and middle speed middle speed and low speed high speed and low speed running time of 3 5 minutes must be ensured Fan mode is the same as cooling mode 7 Buzzer Control The buzzer will send a Di sound when the air conditioner is powered up or received the information sent by the remote control or there is a button input the single tube cooler doesnt receive the remote control ON signal under the mode of heating mode 8 Auto button If the controller is on it will stop by pressing the button and if the controller is off it will be automatic running state by pressing the button swing on and light on and the main unit will run based on the remote control if there is remote control order 9 Up and Down Swinging Control When power on the up and down motor will firstly move the air deflector to counter clockwise close the air outlet After starting the machine if you dont set the swinging function heating mode and auto heating mode the up and down air deflector will move to D clockwise under other modes the up and down air deflector will move to L1 If you set the swinging function when you start the machine then the wind blade will swing between L and D The air deflector has 7 swinging states Location L Location A Location B Location C Location D Location L to Location D stop at any location between L
74. nit is heavy If radiating of unit is good Malfunction diagnosis process H5 H7 or P5 is displayed after turning on the unit coil resistance of compressor is normal Is compressor coil insulating to copper pipe well Measure if the voltage input is within 180 265V _N Repair power supply to make with AC voltmeter the power voltage normal the unit see fig 30 If the control board AP1 is well connected with compressor COMP If they are loosened If the connection sequence is correct Heat exchange of unit is not good heat exchanger is dirty and unit radiating environment is bad The unit starts operation again The compressor is well connected Adjust it properly according to wiring Restart the unit The unit starts operation again The unit starts operation again with mainboard diagram 5 1 Y N Heat exchanger is Clean the heat exchanger blocked with dirt to improve its performance Restart the unit N Adjust refrigerant charging amount Does the unit Restart the unit The unit starts operation again Replace outdoor mainboard AP 1 work normally N Y Replace compressor 44 Installation and Maintenance Service Manual 8 High temperature and overload protection E8 AP1 below means control board of outdoor unit Main de
75. nnecter 06123401 1 7 Compressor Gasket 76710302 3 8 4 Way Valve Assy 03073145 1 9 Valve Support 0171314201P 1 10 Cut off Valve Assy 071302391 1 11 Valve 07100003 1 12 Valve Support Block 26113017 2 13 Right Side Plate Sub Assy 0130317801 1 14 Big Handle 26233433 1 15 Magnet Coil 4300040050 1 16 Magnet Coil 4300876701 1 17 Rear Grill 01473009 1 18 Temperature Sensor 3900030805 1 19 Magnetic Ring 49010109 1 20 Reactor 43130184 1 21 Wire Clamp 71010003 2 22 Terminal Board 42010313 1 23 Electric Box Assy 10000100127 1 24 Board 30138000428 1 25 20113032 1 26 Electric Sub Assy 10000500042 1 27 Top Cover Sub Assy 0125307002 1 28 Condenser Assy 01100200142 1 29 Motor Support 01703104 1 30 Fan Motor 1501308506 1 31 Compressor and Fittings 0010389601 1 32 Small Handle 26233100 1 Above data is subject to change without notice Installation and Maintenance 63 Description Part Code Qty GWH12MB K3DNE3G O Product Code CB404W03501 1 Front Grill 22413008 1 2 Front Panel Assy 0153304801 1 3 Axial Flow Fan 10333004 1 4 Chassis Sub assy 02803304P 1 5 Clapboard Sub Assy 0123338502 1 6 Drainage Connecter 06123401 1 7 Compressor Gasket 76710302 3 8 4 Way Valve Assy 03073145 1 9 Valve Support 0171314201P 1 10 Cut off Valve
76. ntion conditions and H1 will be displayed at temperature display area on the display panel Defrost frequency is 85Hz 3 Protection Cold air prevention The unit is started under heating mode the compressor is ON CD In the case of T indoor amb lt 24 C if T tubes40 C the indoor fan is at stop state the indoor fan will begin to run at low speed with a time lag of 2 minutes Within 2 minutes if T tube gt 40 C the indoor fan also will run at low speed and after 1 minute operation at low speed the indoor fan will be converted to operation at preset speed Within 1 minute low speed operation or 2 minute non operation if T tube gt 42 C the fan will run at present speed 2 the case of T indoor amb 224 C if T tubes42 C the indoor fan will run at low speed and after one minute the indoor fan will be converted to preset speed Within one minute low speed operation if T tube gt 42 C the indoor fan will be converted to preset speed Note T indoor amb indicated D and refers to under initially heating mode the indoor ambient temperature before the command to start the compressor is performed according to the program or after the unit is withdrawn from defrost the indoor ambient temperature before the defrost symbol is cleared Total current up and frequency down protection If the total current Itotals6A frequency rise will be allowed if Itotal27A frequency rise will not be allowed if Itotal28A the compr
77. of pin 3 and pin 4 of U131 with universal meter voltage of both sides of R134 The voltage should be variable test 11 Test the voltage of pin 1 and pin 2 of U132 with universal meter voltage of both sides of C134 The voltage should be variable test 12 Otherwise there is malfunction of mainboard of outdoor unit 4 Test the voltage between pin 1 of R135 white and pin 1 of U4 The voltage should be variable Test voltage between pin1 of R131 white and pin 1 of U4 with universal meter The voltage should be variable Otherwise there is malfunction of mainboard of outdoor unit Installation and Maintenance 51 Service Manual Start t Measure voltage atthe Test 10 position as shown in the diagram with a voltmeter sel Value jumping 2 z Measure voltage atthe Test 15 position as shown in the diagram with a voltmeter Y Y Value jumping N Y Fault with outdoor unit Measure voltage at the Test 11 position as shown in the diagram with a voltmeter eee Value jumping N gt Measure voltage atthe Test 12 position as shown in the diagram with a voltmeter Value jumping The communication circuit of the outdoor unit is normal 52 Installation and Maintenance Service Manual 9 3 Troubleshooting for Normal Malfunction 1 Air Conditioner Can t be Started Up Possible Causes Discriminating Method Air co
78. onnect the power connection wire to the wiring terminal according to the color tighten the screw and then fix the power connection wire with wire clip As show in Fig 13 Cooling and heating unit w 2 s blue Wire clip Note The wiring connect is for reference only please refer to the actual one Fig 13 4 Put wiring cover back and then tighten the screw 5 Close the panel Note 1 All wires of indoor unit and outdoor unit should be connected by a professional 2 If the length of power connection wire is insufficient please contact the supplier for a new one Avoid extending the wire by yourself 3 For the air conditioner with plug the plug should be reachable after finishing installation 4 For the air conditioner without plug an air switch must be installed in the line The air switch should be all pole parting and the contact parting distance should be more than 3mm 28 Service Manual 8 Bind up Pipe 1 Bind up the connection pipe power cord and drain hose with the band As show in Fig 14 2 Reserve a certain length of drain hose and power cord for installation when binding them When binding 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 outdoor power cort 5 Indoor 4
79. or fan will run and the indoor fan will run at the set speed If ST preset 2 the compressor will stop the outdoor fan will delay 30 seconds to stop and the indoor fan will run at the set speed If Tpreset 2 C lt ST preset the unit will keep running in the previous mode In this mode the reversal valve will not be powered on and the temperature setting range is 16 30 C Start cooling Tpreset Original operating status Tpreset 2 C le z6 min gt 3 min 6imin gt Stop cooling Compressor Outdoor fan Indoor fan Setting fon speen Stop P rotection function Overcurrent protection If total current is high the compressor will run in limited frequency If total current is too high the compressor will stop the outdoor fan will delay 30 seconds to stop indoor unit will display E5 and outdoor yellow light will blink 5 times Antifreezing protection When the antifreezing protection is detected the compressor will stop the outdoor fan will stop after 30 seconds and the indoor fan and swing motor will keep running in the original mode When antifreezing protection is eliminated and the compressor has stopped for 3 minutes the compressor will resume running in the original mode During antifreeze protection Compressor 23min Outdoor fan Indoor fan Preset speed CRO Stop
80. ort of indoor ambient temp 15 Port of indoor pipe temp sensor High frequency transformer Technical Information Service Manual Outdoor Unit Top view SA 2002 OON T 2 n wp T e Bottom view 9 8 7 Technical Information 4 compressor electricheater 6 fanneilsbed 0 8 temp sensor 9 mainchip 2 10 EEPROM 11 Service Manual 6 Function and Control 12 6 1 Remote Controller Introduction Buttons on Remote Controller _ Introduction for Icons on Display Screen 6000000000 ON OFF button button FAN button MODE button FEEL button button f button CLOCK button TIMER ON TIMER OFF button 31 button X FAN button Note X FAN is the same with BLOW TEMP button TURBO button SLEEP button LIGHT button s outdoor ambient temp temp auto mode 5 N FAN Za m send signal cool mode 1 LERT nj teren health function N e O lfeel ry mode l Don ventilation operation 1 95 rn SEU X fan mode fan mode 216 1 1 x set temperature heat mode 1 eK X D am Cane Ee MEE turbo mode uam uU set time clock
81. perature is improper Observe the set temperature on remote controller Adjust the set temperature Rotation speed of the IDU fan motor ie set tog low Small wind blow Set the fan speed at high or medium Filter of indoor unit is blocked Check the filter to see it s blocked Clean the filter B whether the installation postion is proper 4 Installation position for indoor unit according to installation requirement for air djust the installation position and install the and outdoor unit is improper conditioner rainproof and sunproof for outdoor unit Discharged air temperature during cooling is higher than normal discharged wind temperature Discharged air temperature during heating is Find out the leakage causes and deal with it lower than normal discharged wind temperature Add refrigerant Unit s pressure is much lower than regulated range Malfunction of 4 way valve Blow cold wind during heating Replace the 4 way valve Discharged air temperature during cooling is higher than normal discharged wind temperature Discharged air temperature during heating is Malfunction of capillary lower than normal discharged wind temperature Replace the capillary Unit t pressure is much lower than regulated range If refrigerant isn t leaking part of capillary is blocked Flow volume of valve is pressure of valves is much lower than that Open the valve completely insufficient stated in the specificatio
82. r remains at stop for at least 3 minutes the compressor will resume its operation If module protection occurs six times in succession the compressor will not be started again Overload protection If temperature sensed by the overload sensor is over 115 C the compressor will stop and the outdoor fan will stop with a time lag of 30 seconds If temperature is below 95 C the overload protection will be relieved C DC bus voltage protection If voltage on the DC bus is below 150V or over 420V the compressor will stop and the outdoor fan will stop with a time lag of 30 seconds When voltage on the DC bus returns to its normal value and the compressor has stayed at stop for at least 3 minutes the compressor will resume its operation Faults of temperature sensors 3 Other Controls 1 ON OFF Press the remote button ON OFF the on off state will be changed once each time you press the button 2 Mode Selection Press the remote button MODE then select and show in the following ways AUTO COOL DRY FAN HEAT AUTO 3 Temperature Setting Option Button Each time you press the remote button TEMP the setting temperature will be up or down by 1 C Regulating Range 16 30 C the button is useless under the AUTO mode 4 Time Switch You should start and stop the machine according to the setting time by remote control 5 SLEEP State Control 1 In cooling mode 1 1 When the initial set temperature is 16 23
83. rding to wiring diagram to Wrong wire connection or poor Check the wiring status according to circuit M make sure all wiring terminals are connected connection diagram Measure the capacity of fan capacitor with an Capacity of compressor is universal meter and find that the capacity is out o damaged he deviation range indicated on the nameplate an capacitor Power voltage is a little low or Use universal meter to measure the power supplyls high oltage The voltage is a little high or low 99 quip ge reg Use universal meter to measure the resistance Coil of compressor is burnt out Repair or replace compressor between compressor terminals and it s 0 ylinder of compressor is blocked Compressor can t operate Repair or replace compressor 6 Air Conditioner is Leaking Discriminating method air conditioner status Troubleshooting Replace the compressor capacitor Drain pipe is blocked ater leaking from indoor unit Drain pipe is broken ater leaking from drain pipe Replace drain pipe Wrapping is not tight Mom thepipe connection place of rap it again and bundle it tightly 7 Abnormal Sound and Vibration Discriminating method air conditioner status Troubleshooting When turn on or turn off the unit the panel and other parts will here s the sound of PAPA Normal phenomenon Abnormal sound will expand and there s abnormal disappear after a few minutes sound When tu
84. re than 45 minutes or accumulated heating time more than 90 minutes and one of the following conditions is reached the unit will enter the defrost mode after 3 minutes 1 T outdoor ambient gt 5 C T outdoor tubes 2 C 2 2 CST outdoor ambient lt 5 C T outdoor tubes 6 C 3 5 CST outdoor ambient lt 2 C T outdoor tubes 8 C 4 10 CST outdoor ambient lt 5 C T outdoor tube T compensatory s T outdoor ambient 3 C 5 T outdoor ambient lt 10 C outdoor tube T compensatory lt outdoor ambient 3 C after energizing T compensatory 0 C during the first defrosting if it is not the first defrosting T compensatory is confirmed by T outdoor tube of quitting last defrosting a when T outdoor tube gt 2 C T compensatory 0 C b when T outdoor tube lt 2 C T compensatory 3 C At that time the indoor fan stops and the compressor stops and after 30 seconds the outer fan will stop and then after 30 seconds the four way valve will stop After 30 seconds the compressor is initiated for raising the frequency to defrost frequency When the compressor has operated under defrost mode for 7 5 minutes or T outdoor ambient 10 C the compressor will be converted to 46Hz operation After 30 seconds the compressor will stop And after another 30 seconds the four way valve will be opened and after 60 seconds the compressor and the outer fan will be started the indoor fan will run under preset cold air preve
85. rille and front panel Right side plate 68 Service Manual Se 6 Remove electric box assy Remove the 2 screws fixing the cover of elec tric box Lift to remove the cover Loosen the wire and disconnect the terminal Lift to re move the electric box assy 7 Remove 4 way valve assy ys Unscrew the fastening nut of the 4 way Valve Assy coil and remove the coil Wrap the 4 way Valve Assy with wet cotton and unsolder the 4 weld spots connecting the 4 way Valve Assy to take it out Note Refrigerant should be discharged firstly Welding process 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 ZR X EX 8 Remove capillary sub assy Unsolder weld point of capillary Sub assy valve and outlet pipe of condensator Then remove the capillary Sub assy Do not block the capillary when unsoldering it Note be fore unsoldering discharge refrigerants completely 69 Installation and Maintenance Service Manual 9 motor and motor support Motor support Remove the 4 tapping screws fixing the motor Pull out the lead out wire and remove the motor Remove the 2 tapping screws fixing the motor support Lift motor support to re move it V 10 8
86. rn on or turn off the unit there s abnormal sound due Normal phenomenon Abnormal sound will ater running sound can be heard to flow of refrigerant inside air disappear after a few minutes conditioner Foreign objects inside the indoor Remove foreign objects Adjust all parts unit or there re parts touching here s abnormal sound fro indoor unit position of indoor unit tighten screws and stick together inside the indoor unit damping plaster between connected parts Foreign objects inside the outdoo Remove foreign objects Adjust all parts unit or there re parts touching here s abnormal sound fro outdoor unit position of outdoor unit tighten screws and together inside the outdoor unit tick damping plaster between connected parts Short circuit inside the magnetic During heating the way valve has abnormal Replace magnetic coil coil electromagnetic sound Abnormal shake of compressor Outdoor unit gives out abnormal sound Adjust the support Toot mat ofcompressor ighten the bolts If add too much refrigerant during maintenance Abnormal sound inside the compressor please reduce refrigerant properly Replace ompressor for other circumstances Abnormal sound inside the compressor Installation and Maintenance Service Manual 10 Exploded View and Parts List 10 1 Indoor Unit GWHO9MB K3DNE3G GWH12MB K3DNE3G I 55 Installation and Maintenance
87. ry mode the air conditioner operates at low speed under dry mode Dry indicator on indoor unit is ON Under dry mode fan speed can t be adjusted Press 31 button to adjust fan blowing angle e When selecting fan mode the air conditioner will only blow fan no cooling and no heating All indicators are OFF Operation indicator is ON Press FAN button to adjust fan speed Press 51 button to adjust fan blowing angle e When selecting heating mode the air conditioner operates under heat mode Heat indicator 3 on indoor unit is ON Press or button to adjust set temperature Press FAN button to adjust fan speed Press 51 button to adjust fan blowing angle Cooling only unit won t receive heating mode signal If setting heat mode with remote controller press ON OFF button can t start up the unit Note e For preventing cold air after starting up heating mode indoor unit will delay 1 5 to blow air actual delay time is depend on indoor ambient temperature e Set temperature range from remote controller 16 30 C Fan speed auto low speed medium speed high speed 3 or Button e Press or button once increase or decrease set temperature 1 C Holding or button 2s later set temperature on remote controller will change quickly On releasing button after setting is finished temperature indicator on indoor unit will change accordingly Temperature can t be adjust
88. s Press or button to adjust TIMER OFF setting After each pressing or button TIMER OFF setting will increase or decrease 1min Hold or button 2s later the time will change quickly until reaching your required time Press TIMER OFF to confirm it The word OFF will stop blinking icon resumes displaying Cancel TIMER OFF Under the condition that TIMER OFF is started up press TIMER OFF button to cancel it Note e Under on and off status you can set TIMER OFF or TIMER on simultaneously e Before setting TIMER ON or TIMER OFF please adjust the clock time e After starting up TIMER ON or TIMER OFF set the constant circulating valid After that air conditioner will be turned on or turned off according to setting time ON OFF button has no effect on setting If you don t need this function please use remote controller to cancel it 8 X FAN Button Press this button under cool and dry mode to start up x fan function and amp icon on remote controller will be displayed Press this button again to cancel x fan function and amp icon will disappear Note e When x fan function is on if the air conditioner is turned off indoor fan will still operate at low speed for a while to blow the residual water inside the air duct e During x fan operation press X FAN button to turn off x fan function Indoor fan will stop operation immediately 9 TEMP Button By pressing this button you can see in
89. tection points If the outdoor ambient temperature is in normal range If the indoor and outdoor fan are running normally If the radiating environment of indoor and outdoor unit is good 8 is displayed If the outdoor ambient temperature is higher than 53 Normal protection please Y use it after improving the Unit restarts normally outdoor ambient temperature mprove the radiating environment Y of unit clean the heat exchanger and remove surrounding obstacles If the radiating of indoor and outdoor unit is good Unit restarts normally If the indoor and outdoor fan are running normally Adjust the Y Connect normally Y Replace Fan capacitor Y Replace Motor Y Replace outdoor mainboard Fan capacitor is broken Motor is broken N Replace mainboard End y Installation and Maintenance Service Manual 9 Start up failure LC 1 below means control board of outdoor unit Main detection points If the compressor wiring is correct Ifthe stop time of compressor is sufficient If the compressor is damaged If the refrigerant charging amount is too much Turn on the unit Em The stop time is not sufficient and the high and low pressure of system gt is not balanced please start the uni after 3min f the stop time of compresso is more than 3min
90. the soap water for more than 3min If there are air bubbles coming out of this position there s a leakage 30 Service Manual 8 8 Check after Installation and Test Operation 1 Check after Installation Check according to the following requirement after finishing installation The unit may drop shake or installed firmly emit noise refrigerant leakage test heating capacity pipeline sufficient water dripping water dripping Is the voltage of power supply according to the may cause malfunction or voltage marked on the damage the parts nameplate Is electric wiring and pipeline installed correctly It may cause electric leakage securely follow the specification damage the parts in air inlet and air outlet heating The dust and sundries caused It may cause malfunction or during installation are damaging the parts removed The gas valve and liquid valve of connection pipe are open completely EN It may cause malfunction or damage the parts A It may cause insufficient cooling heating capacity 2 Test Operation 1 Preparation of test operation e The client approves the air conditioner installation e Specify the important notes for air conditioner to the client 2 Method of test operation e Put through the power press ON OFF button on the remote controller to start operation e Press MODE button to select AUTO COOL DRY FAN and HEAT to check whether th
91. the wall mounted frame As show in Fig 1 Wall Wall Mark in the middle of it Level meter Space amp Dr N tothe to the wall all above bove 150mm 150m m SEES Left 7 Right 55mm Rear piping hole 2 Open a piping hole with the diameter of 55 on the selected outlet pipe position In order to drain smoothly slant the piping hole on the wall slightly downward to the outdoor side with the gradient of 5 10 As show Fig 2 7 eT 55 15 109 Indoor Outdoor Fig 2 A Note 1 Pay attention to dust prevention and take relevant safety measures when opening the hole 2 The plastic expansion particles are not provided and should be bought locally 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 Rear left Fig 3 ear right Left Right Cut off the hole Fig 4 Installation and Maintenance o 55mm Rear piping hole 5 Connect the Pipe of Indoor Unit 1 Aim the pipe joint at the corresponding bellmouth As show in Fig 5 2 Pretightening the union nut with hand 3 Adjust the torque force by referring to the following sheet Place the open end wrench on the pipe joint and place the
92. tire machine When you stop the drying function press the switch button will stop the machine directly When you start the drying function operating the drying button will stop the inner fans and close the guide louver 13 Memory function when interrupting the power supply Memory content mode swing function light set temperature and wind speed After interrupted the power supply the machine will start when recovering the power according to the memory content automatically If the last remote control command has not set the timed function the system will remember the last remote control command and operate according it If the last remote control command has set timed function and the power supply is interrupted before the timed time the system will remember the timed function of the last remote control command the timed time will recounted form power on If the last remote control command has set timed function the time is out and the system is start or stop according to the set time when the power supply is interrupted the system will remember the operation status before the power supply was interrupted and do not carry out timed action The timed clock will not remembered 14 Electric heating band control of outdoor unit Compressor electric heating band control Start condition the compressor is in off status and the outdoor ambient temperatures 5 C b Stop condition the band is off when either of the below condition is met 1
93. to the local safety regulations use qualified power supply circuit and air switch 3 Make sure the power supply matches with the requirement of air conditioner Unstable power supply or incorrect wiring may result in electric shock fire hazard or malfunction Please install proper power supply cables before using the air conditioner Air switch capacity 4 Properly connect the live wire neutral wire and grounding wire of power socket 5 Be sure to cut off the power supply before proceeding any work related to electricity and safety 6 Do not put through the power before finishing installation 7 For appliances with type Y attachment the instructions shall contain the substance of thefollowing If the supply cord is damaged it must be replaced by the manufacturer its service agent or similarly qualified persons in order to avoid a hazard 8 The temperature of refrigerant circuit will be high please keep the interconnection cable away from the copper tube 2 Grounding Requirement 1 The air conditioner is first class electric appliance It must be properly grounding with specialized grounding device by a professional 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 can t be used for other purposes 3 The grounding resistance should comply with national electric safety regulations 4 The appliance must be
94. torque wrench on the union nut Tighten the union nut with torque wrench As show in Fig 6 4 Wrap the indoor pipe and joint of connection pipe with insulating pipe and then wrap it with tape As show in Fig 7 Open end wrench Union nut Pipe joint Unionnut Pipe Torque wrench Pipe EN P I t Fig 5 Indoor pipe Fig 6 DEN Je Insulating pipe Fig 7 Refer to the following table for wrench moment of force Hex nut diameter mm Tightening torque N m 9 15 20 9 52 30 40 45 55 60 65 70 75 6 Install Drain Hose 1 Connect the drain hose to the outlet pipe of indoor unit As show in Fig 8 2 Bind the joint with tape As show Fig 9 Drain hose LE S Outlet Drain hose Fig 8 pipe Note 1 Add insulating pipe in the indoor drain hose in order to prevent condensation 2 The plastic expansion particles are not provided As show in Fig 10 Drain hose gestu Insulating pipe Fig 10 27 7 Connect Wire of Indoor Unit 1 Open the panel remove the screw on the wiring cover and then take down the cover As show Fig 11 Panel Screw ELIT Fig 11 Wiring cover 2 Make the power connection wire go through the cable cross hole at the back of indoor unit and then pull it out from the front side As show in Fig 12 3 Remove the wire clip c
95. ying Volume L h 0 8 1 2 EER W W 2 99 2 99 COP W W 3 33 3 33 SEER W W 6 1 6 1 W W 4 0 4 0 Application Area ma 12 18 16 24 Model of Indoor Unit GWHO9MB K3DNE3G I GWH12MB K3DNE3G I Indoor Unit Product Code 404 03600 404 03601 CB404N03500 CB404N03501 Cross flow Cross flow Diameter Length DXL mm 92 645 92 645 Fan Motor Cooling Speed r min 1260 1050 900 690 1290 1070 900 690 SH H M L SL Fan Motor Heating Speed r min 1320 1200 1000 910 1280 1050 980 920 SH H M L SL Output of Fan Motor W 20 20 Fan Motor RLA A 0 1 0 1 Fan Motor Capacitor UF 1 0 1 0 Input of Heater W Evaporator Form Aluminum Fin copper Tube Aluminum Fin copper Tube Indoor Pipe Diameter mm o7 o7 Unit Row fin Gap mm 2 1 4 2 1 4 Coil Length LXDXW mm 636X25 4X267 636X25 4X267 Swing Motor Model MP24AA MP24AA Output of Swing Motor W 2 2 Fuse A 3 15 3 15 Sound Pressure Level SH H M L SL dB 42 39 34 28 42 40 35 30 A Sound Power Level SH H M L SL dB 54 50 45 40 54 51 45 42 A Dimension WXHXD mm 845X275X180 845X275X180 Dimension of Carton Box LXWXH mm 915X255X355 915X255X355 Dimension of Package LXWXH mm 918X258X370 918X258X370 Net Weight kg 9 9 Gross Weight kg 12 12 Technical Information Service Manual GWH12MB K3DNE3G O CB404W03500 CB404W03501 Model of Outdoor Unit GWHOSMB K3DNE3G O roduct Code of Outdoor Unit CB404W03600 CB404W03601 Compressor Manufacturer Trademar

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