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SERVICE MANUAL

1. 48 Installation and Maintenance Service Manual 7 IPM protection H5 desynchronizing malfunction H7 overcurrent of compressor phase current P5 AP1 below means control board of outdoor unit Main detection points If the system pressure is too high Malfunction diagnosis process H5 H7 or P5 is displayed after turning on the unit Measure if the voltage input is within 180 265V with AC voltmeter see fig 30 Is voltage input within the normal range 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 If the refrigerant charging amount is appropriate If coil resistance of compressor is normal 15 compressor coil insulating to copper pipe well If the work load of unit is heavy If radiating of unit is good N Repair power supply to make the power voltage normal The unit starts operation again 1 Restart the me The compressor is well connected with mainboard Adjust it properly The unit starts N according to me y diagram 5 1 N p Rosier the operation again Heat exchanger is blocked with dirt Clean the heat exchanger to improve its performance T
2. poss Ft Set temperature Heat mode J V K Nee NW v Turbo mode anou Clock i xx D ONOFF ol SERM TIMER ON TIMER OFF pu Temp display type C Settemp J lndoor ambient temp N whey Sleep a 2 ia Child lock 2 Outdoor ambient temp Introduction for Buttons Remote Controller Note After putting through the power the air conditioner will give out a sound Operation indictor b is ON red indicator After that you can operate the air conditioner by using remote controller 1 ON OFF Button Press this button can turn on or turn off the air conditioner After turning on the air conditioner operation indicator b on indoor units display is ON 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 EN xx gt Technical Information e 17 Service Manual e When selecting auto mode air conditioner will operate automatically according to exfactory setting Set temperature can t be adjusted and will not be displayed as well Press FAN button can adjust fan speed Press 3I button can adjust fan blowing angle e When selecting cool mode air conditioner will operate under cool mode Cool
3. es eliminated y The fan is abnormal Fan Malfunction is speed is too low or fan doesn t rotate eliminated Measure the current of live wireon the main board with a clamp ampere meter Is the n Malfunction is yes current higher than the value of the overcurrent protection eliminated yes e no Is there blockage inside the system Filth blockage ice plug greasy blockage the Y valve hasn t been opened completely Malfunction is eliminated yes no no Replace the mainboard with the same model Is the compressor running abnormally Is there abnormal sound or oil leakage is the temperature of the shell too high etc Malfunction is eliminated yes Replace the mainboard with the same model End 46 Installation and Maintenance Service Manual 5 Malfunction of Zero crossing Inspection Circuit Malfunction of the IDU Fan Motor U8 Installation and Maintenance Troubleshooting for U8 malfunction Re energize1 minute after de erergization The unit returns to normal Conclusion U8 is displayed due to instant energization afte de energization while the capacitor discharges slowly U8 is still displayed ne Yes The zero cross detection circuit of the mainboard is defined abnormal Replace
4. sm 9 1090 ar ane 2 144 359 1 109 36 ws 23 463 6 344 1 09 187 2 1568 63 333 1 0952 4 429 25 1 9 32 19 0925 oa 26 1436 6 315 104 089 32 9222 2 ea 6 298 15 0873 m es 28 4346 07 2896 10 0848 40 8275 29 16 6 2797 10 085 eas 3 mo 2 2 1 082 ms a ns o 260 109 orms 75 32 no n 2523 mo ors 72 249 m orr ess 34 42 73 238 2 60 5 3 ors 7 m oer sr 36 932 75 226 ma oere 3 76 243 ms os 515 3 562 7 20 me 062 so 39 897 z m 065 466 4o 797 79 ies ve oes 43 44 769 8 xe v9 0592 Caa 4 732 8 is 10 087 400 43 705 82 1 1 385 4 67 ieo 12 osm 363 4s 652 165 13 052 7 345 4 s 1504 1 329 4 605 s 1 15 055 318 4 ss s 44 16 049 299 55 6 1441 iz os 2851 x18 259 6 1 s s m 50 539 89 1408 128 047 51 5197 90 1363 129 0450 52 496 91 132 130 044
5. Is there short circuit due to trip over of the parts malfunctio eliminated yes Make the parts upright lt no Is the emperature sensor normal accordin to the Resistance Table yes malfunctio eliminated no Replace it with a temperature sensor with the same model Is malfunction no v Replace the mainboard with the same model yes yes yes 43 44 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 no Tighten the screw reassemble the blade motor Service Manual and shaft bearing rubber base sub assy to make yes sure there is no foreign object between them no yes Is the control terminal of PG motor no connected tightly Insert the control terminal of PG motor tightly yes malfunction lt o yes Stir the blade by hand to see whether the blade rotate s smoothly Reinstall the blade and motor correctly yes Is malfunction no yes P Turn on the nit again measure whether the output voltage on control terminal for PG motor is more than 50V within 1 min after the yes louv
6. C216 In 708 2 M CLE che temp sensor 4 ESI a c Power of ca 15 EF switch ot ORFS OS 2 o iT2 3 I4 5Tel7 8 S High frequency transformer Communication port Main chip e Bottom view Technical Information e 15 Service Manual Outdoor Unit e Top view compressor inductance inductance pin2 fan neilsbed four way n electric heater E f O N NS A chassis N electric heater Q a BN Te ES D IN C AUN NY o 7 CD em 3 y FL A 10 core if communication cable o or l O E em compressor temp sensor e Bottom view 16 overload protection electric expansion valve Technical Information Service Manual 6 Function and Control 6 1 Remote Controller Introduction Buttons on Remote Controller r y 6 ON OFF Button 48 25 MODE Button i Button FILI c UTD HOUR o FAN Button Q S120 a 3l Button 1 2 CLOCK Button 4 TIMER ON TIMER OFF Button 5 6 9 X FAN Button 2 7 Button X FAN 9 TURBO Button 12 m D LIGHT Button T af SLEEP Button 1 Operation mode 2 SSS sss Set fan speed Auto mode 4 4 oo Send signal Cool mode a 0 E X fan mode Dry mode dace
7. 50 Installation Maintenance Service Manual 9 Start up failure LC AP1 below means control board of outdoor unit Main detection points If the compressor wiring is correct If the stop time of compressor is sufficient If the compressor is damaged If the refrigerant charging amount is too much the gt stop time is not sufficient If the stop time of compressor N the high and low pressure of system gt is more than 3min is not balanced please start the uni after 3min Y Y Check the connection situation Ifthe compressor wire of outdoor mainboard AP1 and COMP UVW is well connected and compressor COMP and the connection sequence is correct connect it according to wiring diagram Y U Does the unit start up normally If the refrigerant charging lt N amount is too much Y Charge the refrigerant according to service manual Does the unit 7 start normally N Replace outdoor mainboard AP1 Is the malfunction Y gt eliminated N Y Replace the compressor End E Installation Maintenance 51 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 protec
8. 1699 90 449 26 7038 13 8495 52 1636 9 454 25 6008 14 810 53 145 92 420 24 6208 15 7735 54 1517 9 409 506 6 7383 55 142 94 3958 22 589 17 705 56 140 95 2 566 18 6734 57 1358 6 3728 20 465 19 6433 5 130 97 369 19 483 20 648 859 122 98 3514 42 2 57 60 1217 9 343 cT 4074 2 549 61 4 40 335 16 345 23 5374 6 132 10 32 5 329 24 54 6 1098 102 342 14 3428 25 449 64 1054 108 30 13 339 26 4708 65 148 104 295 12 30602 27 4507 66 987 15 2872 M 296 28 446 67 9489 106 272 O 24 29 4134 68 910 107 27105 9 293 30 3961 69 884 10 264 8 2456 3 3796 70 855 109 2568 7 22 32 3638 71 8268 10 24 2205 3 348 72 7991 m 241 29 34 3345 776 112 255 3 3 309 74 77 n 23 1991 36 3079 75 724 14 224 186 37 2954 76 698 115 2482 1695 23 77 66 1166 24 ter 39 723 78 65422 17 206 153 40 245 79 697 8 205 1454 41 2511
9. 80 612 ng 1963 1383 42 243 81 593 120 1912 1315 43 249 82 95746 121 1863 1251 44 229 83 56 122 186 491 45 2143 84 539 1233 17 4134 46 206 85 522 124 5 47 1981 86 56 125 162 1028 48 1906 87 494 126 X 164 Note The information above is for reference only e Installation and Maintenance Johnson o Controls 2013 Johnson Controls Inc www johnsoncontrols com Doc MUHJZHAMQ 130507 Johnson Controls reserve the right to change product features without prior notice
10. SERVICE MANUAL al YORK BY JOHNSON CONTROLS Mini Split Air Conditioner YEHJZHOO9 12BAMTAFX Read this manual before installation and operation Make sure that it is well kept for later reference Johnson MUHJZCAMS 12708 Controls Service Manual Table of Contents Part Technical Information 1 1 Summary 1 Z 3 2 1 Specification Sheet TOT 3 2 2 Operation Characteristic Curve 7 2 3 Capacity Variation Ratio According to Temperature 7 2 4 Cooling and Heating Data Sheet in Rated Frequency 8 8 3 Outline Dimension A UN 9 9 2 M 9 4 Refrigerant System Diagram 11 5 Electrical Part 12 SN Di rl mmm 12 POET med DIOS u 15 6 Function and Control a asa 17 REMO CONTOIer INTOdUCION Mm 17 6 2 Brief Description of Modes and Functlions 21 Part
11. 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 indoor fan will run at middle speed c Tamb gt Tpreset 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 f
12. If exhaust temperature 298 C frequency is not allowed to rise If exhaust temperature 2103 C the compressor will run at reduced frequency If exhaust temperature 2110 C 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 3 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 4 Module protection Under module protection mode the compressor will stop When the compressor 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 5 Overload protection If temperature sensed by the overload sensor is over 115 the compressor will stop and the outdoor fan will stop with a time lag of 30 seconds If temperature is below 95 the overload protection will be relieved C 6 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 7 Faults of temperature sensors 3 Other Controls 1 ON OFF Press the remote button ON OFF the on off state will be
13. YEHJYH009BAMTA X mM TEN SENSOR TEM SENSOR TENLSENSOR RT YEGN UR i 5 CN2 4V es d APT E BN N XT y M CN AC L3 BU BU D N J gt AP2 BU BU R N1 lt AC N AC N2 YEGN lt AC L1 BN OFAN OVC COMP l U V W x MIIDISOLATION SHEET ELECTRIC 7 YE RD wr RD 2 N 9 PE 7 9 6 2 Y 202002 BU YE R FAN Motor ground only AU V YEGN applies to the YEGN W iron shell motor t YEHJYH012BAMTA X L pe EU YEGN D a x BU BN 1X12 PE f N XT 083 AC L3 D a BU AP2 0 BK L4 1 Q Sy gt 9S COM OUT BU BU R Ll L4 py N AC N2 U 3 CY Y IYEGN l PE i NN MIDISOLATION SHEET ELECTRICBOX BU YE RD d SAT RD PEG Q Y P 2 2 e NOTE YEGN VE RD FAN Motor ground only UAV YEGN applies to the YEGN iron shell motor 0 COMP COMP Technical Information Service Manual 5 2 PCB Printed Diagram Indoor Unit e view Port of neutral wire Solid state relay Live wire of health function Port of indoor fan Auto button Feedback of indoor fan Port of motor for vertical swing Protective tube X Buzzer Em d imo Ci Port of indoor ambient ont temp sensor MT 3 EU 34 Port of indoor pipe
14. frame drill wall holes Connect pipes of indoor unit and drainage pipe x Connect wires of indoor unit Install drainage joint of outdoor unit only for cooling and heating unit Bind up pipes and hang the indoor unit Make the bound pipes pass through the wall hole and then connect outdoor unit select installation Prepare tools location Install the support of outdoor unit select it according to the actual situation Fix outdoor unit Connect pipes of outdoor unit Connect wires of outdoor unit Neaten the pipes Vacuum pumping and leakage detection Check after installation and test operation Finish installation Note this flow is only for reference please find the more detailed installation steps in this section 30 Installation Maintenance Service Manual 8 4 Requirements Forelectric Connection No Indoor unit 8 Sealing gum Outdoor unit 9 Wrapping tape Connection pipe of outdoor 3 Wall mounting Drainage plug cooling 12 frame and heating unit Connecting Owner s manual 13 cable power cord remote controller 7 pipe j 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 m
15. the mainboard with the same model 47 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 Is reactor L well 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 td Voltage higher Y the outdoor ep a oor than 200V mainboard AB mainboar N y Measure the voltage input with AC voltmeter see fig 30 Power supply is abnormal repair Voltage within the power supply Power on and Is the Vmalfunction 180VAC 260VAC to restore the range restart the unit me between 180VAC eliminated 260VAC Y Y Shut down the power and wait 20 minutes or use DC voltmeter to measure the voltage on the two ends of electrolytic capacitor until the voltage is lower than 20V Check the connection of reactor and connection wire Connect the connection Power on and wire of reactor restart the unit L correctly Replace outdoor mainboard AP1 N u End p f the wiring of reactor L is normal Is the Vmalfunction eliminated
16. 4 53 482 92 128 131 0433 54 465 93 124 132 042 19 19 63 __ 4456 94 120 133 042 420 95 1171 134 041 4139 96 1136 135 0891 39 97 1109 136 052 1 1 1 1 1 1 1 3 6 7 8 90 Installation Maintenance Service Manual Resistance Table for Indoor and Outdoor Tube Temperature Sensor 20K Temp C Resistance kQ _ Temp C Resistance kQ Temp C Resistance kQ Resistance kO sa 11 9 oa 5 55 8 74 21 239 60 448 99 1386 w 161 2 228 6 473 100 136 16 1533 2745 62 46 101 1307 15 24 209 63 443 102 129 c 3372 25 2 64 429 108 123 3 199 26 1914 6 44 104 1198 32 7253 27 1813 6 3998 10 11604 M nes 28 1755 67 3 100 31431 230 29 168 3729 107 17109 ws 3 w o ses ws 109 8 9913 1543 72 3481 10 109 3 49 330 no 10 s wo 3 te 7 322 o 5 8460 34 1359 314 12 096 Ca osn 35 sa a sa m os 8 7624 3 1251 75 24 4 094 2 741 37 142 76 294 15 088 31 687 38
17. Cool Heating Yellow Red Green Indicator Indicator Indicator Indicator Indicator Indicator OFF 3S OFF 3S and blink and blink Malfunction Z A C status Possible Causes When the outdoor unit receive signal of Gathering refrigerant and blink N 3 O N 25 Co ambient temperature sensor is open short circuited Indoor evaporator temperature sensor is open short circuited Outdoor ambient temperature sensor is open short circuited Outdoor condenser temperature sensor is open short circuited Outdoor discharge temperature sensor is open short circuited Limit decrease frequency due to overload Decrease frequency due to overcurrent 1times 1 times and blink and blink twice OFF 3S and blink 3 times OFF 3S and blink 4 times OFF 3S and blink 5 times OFF 3S and blink for 6 times OFF 3S and blink 8 times Installation and Maintenance e OFF 1S and blink 6 times OFF 1S and blink 5 times OFF 1S and blink 7 times OFF 1S and blink 3 times the system will be forced to run under cooling mode for gathering refrigerant During cooling and drying operation indoor unit operates while other loads will stop during heating operation the complete unit will stop operation AC stops operation once reaches the setting tempe
18. Max 870 185 1300 Heating Power Input Min Max 1200 250 1550 Cooling Power Current Heating Power Current Rated Input Rated Current A 6621 78 4W O Air Flow Volume SH H M L SL Dehumidifying Volume os 20420 O Model of Indoor Unit YEHJXHOO9BAMT FX YEHJXHO12BAMT FX Fan Type Crossflow ImutofHeater door Evaporator Form 71 Aluminum Fin copper Tube _ Aluminum Fin copper Tube Pipe Diameter fm ov v Swing Motor Model MPa NetWeight 1 9 J 9 Technical Information Service Manual Model of Outdoor Unit YEHJYHOO9BAMTA X YEHJYHO12BAMTA X Product Code of Outdoor Unit CB171W07600 171 07700 uere L LANDA COMPRESSOR ZHUHAI LANDA COMPRESSOR p CO LTD CO LTD Compressor Model QXAAO09 zE190M 12 190 Compressor Oil FVC6BP Compressor Type Roay O Overload Proteco es Throttling Method Electron expansion valve Electron expansion valve Condenser Fimcoppsr Tube AluminumFincopperTube Pepa fm ep __ Duties Ouput of Fen 0 Unit FanMotorRLA AG 055 FanMotorCapactor _ rr ae tomate s s sm cimate pe ESL 2 C eS Cs aC e for the Discharge Side for the Suction Side Refigerant _ RA RA Length Outer DiameterLiquidPipe 96 96 1 above data is subject to change
19. 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 or 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 C the temperature will rise 1 C by every hour after sleep function is set the temperature will not change after rising 3 C after running for 7 hours the temperature will decrease 1 C and it will not change after that Technical Information e 23 24 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 C the 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
20. completely with inner hexagon spanner 6 Tighten the screw caps of valves and refrigerant charging vent As show in Fig 28 Liquid valve Piezometer 50 Gas valve 524 2 Refrigerant charging Soe Valve cap vent IRA Charging vent SED I Pap Nut of refrigerant e QN 4 2 Vacuum pump Inner hexagon 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 the soap water for more than 3min If there are air bubbles coming out of this position there s a leakage Installation and Maintenance e 8 8 Check after Installation and Test Operation 1 Check after Installation Check according to the following requirement after finishing installation installed firmly emit noise It may cause insufficient cooling refrigerant leakage test heating capacity pipeline sufficient water dripping Is water drained well water dripping Is the voltage of power supply according to the It may cause malfunction or voltage marked on the damage the parts nameplate B Is electric wiring and 5 It may cause malfunction or pipeline installed correctly Is th it 7 G p It may cause electric leakage securely Does the power cord It may cause malfunction
21. display the current temperature the temperature scope is from 16 C to 30 C and indoor ambient temperature The set temperature displayed in auto cooling and fan mode is 25 C 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 5s 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 E2 Freeze proofing protection E4 Exhausting protection Overcurrent protection E6 Communication failure H4 Overload protection F1 Indoor ambient sensor start and short circuit continuously measured failure in 30S Technical Information Service Manual F2 Indoor evaporator sensor start and short circuit continuously measured failure in 30S F3 Outdoor ambient sensor start and short circuit continuously measured failure in 30S 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 P1 Nominal cooling and heating P2 Maximum cooling and heating P3 Medium cooling and heating Minimum coolin
22. indoor unit or fan speed is too low N e 1 Measure the voltage of position L and N on wiring board XT if the During cooling and drying voltage is higher than 265VAC turn operation compressor will stop On the unit after the supply voltage is increased to the normal range 2 If the AC input is normal measure the voltage of electrolytic complete unit will stop capacitor C on control panel AP1 operation if its normal theres malfunction for the circuit please replace the control panel AP1 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 During cooling and drying voltage is increased to the normal Voltage of 3 operation compressor will stop range DC bus bar while indoor fan will operate is too low i I During heating operation the l the AC inputis normal Voltage for DC bus bar is too high while indoor fan will operate During heating operation the N 22 complete unit will stop measure the voltage of electrolytic capacitor C on control panel AP1 if its normal theres malfunction for the circuit please replace the control panel AP1 during during Compressor blinking blinking Min ON ON frequence in 0 25s 0 25s test state Showing during min cooling or N O min heating test during during Compressor blinking blinki rated frequence in test state N during during C
23. main cause of refrigerant leakage Please expand the pipe according to the following steps x 90 Leaning A Cut the pip P4 e Confirm the pipe length according to the distance of indoor unit and outdoor unit EW e Cut the required pipe with pipe cutter B Remove the burrs e Remove the burrs with shaper and prevent the burrs from getting into the pipe C Put on suitable insulating pipe D Put on the union nut e Remove the union nut on the indoor connection pipe and outdoor valve install the union nut on the pipe E Expand the port e Expand the port with expander N Note e A is different according to the diameter please refer to the sheet below A mm Max 06 6 35 1 4 9 52 3 8 16 15 88 5 8 Outer diameter mm F Inspection Smooth surface e Check the quality of expanding port If there is any blemish expand the port again according to the steps above X X Uneven Burr Improper expanding Y Fr wr wf N leaning damaged crack uneven surface The length is equal Installation and Maintenance e thickness 89 Service Manual Appendix 4 List of Resistance for Ambient Temperature Sensor Resistance Table for Indoor and Outdoor Ambient Temperature Sensors 15K Temp C Resistance kO Resistanceikay Temp C Resistance ka Temp C Resistance kO 181 20 175 5 38 9 ae 426 2
24. 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 e Technical Information Service Manual Protection a 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 HEAT 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 If T tubez55 C frequency rise is not allowed c If T tube258 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 tube gt 53 C frequency rise is not allowed c If T tubez56 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
25. or replace compressor 6 Air Conditioner is Leaking Discriminating method air conditioner status Troubleshooting Drain pipe is blocked Water leaking from indoor unit s c sms ne Drain Drain pipe is broken is broken Water leaking from drain pipe Replace drain pipe 1 drain pipe rapping is not tight Mind pipe 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 Onley parts will There s the sound of PAPA Normal phenomenon Abnormal sound will expand and there s abnormal disappear after a few minutes sound hen turn on or turn off the unit here s abnormal sound due Normal phenomenon Abnormal sound will aa Water running sound can be heard o 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 There s abnormal sound fro indoor unit position of indoor unit tighten screws and stick ogether 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 There s abnormal sound fro outdoor unit position of outdoor unit tighten screws and ogether inside the outdoor unit stick damping plaster between connected parts Short cir
26. 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 If Tpreset 2 C lt T amb 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 The operating symbol the heating symbol and preset temperature are revealed on the display 2 Condition and process of defrost When duration of successive heating operation is more 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 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 lt T outdoor ambient 3 C 5 T outdoor ambient lt 10 C T outdoor tube T compensatory s T 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 T compensatory 0 C b when T outdoor tube x 2 C T compensatory 3 C At that time the indoor fan
27. 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 prevention 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 QD In the case of T indoor amb lt 24 C if T lt 40 and 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 In 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 prese
28. used for other purposes 6 Must apply protective accessories such as protective boards cable cross loop and wire clip 7 The live wire neutral wire and grounding wire of power supply must be corresponding to the live wire neutral wire and grounding wire of the air conditioner 8 The power cord and power connection wires can t be pressed by hard objects 9 If power cord or connection wire is broken it must be replaced by a qualified person Installation and Maintenance e 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 installa
29. 152 77 272 16 056 0 6537 39 146 78 263 7 0833 1 643 40 106 79 257 18 081 2 508 4 12 80 249 19 077 3 549 42 9808 245 120 0769 4 5346 43 942 82 2339 121 0746 5 547 4 904 83 226 12 079 6 4842 45 870 84 219 143 7 sn 460 87 85 215 124 0692 A m gt 8 439 47 801 86 209 125 064 11 ae 78 fer 196 426 0 658 _ 10 3987 49 743 88 195 127 064 n 380 5 713 185 128 0603 12 3622 5 6905 90 1818 12 067 13 3457 52 668 9t 176 130 0592 14 3298 6409 2 1 4 131 057 15 314 54 660 9 16588 132 053 16 3004 5 5942 94 1609 133 0549 17 2868 56 5726 95 1561 134 055 18 2739 57 5519 96 1515 135 052 19 2617 58 53 97 147 16 0509 Installation and Maintenance e 91 92 Service Manual Resistance Table of Outdoor Discharge Temperature Sensor 50K Temp C Resistance kQ Resistance kQ Temp C Resistance kQ Temp C Resistance kO 29 835 10 9 49 1834 88 474 28 7998 9842 5 1765 89 460 27 70 12 8907 5
30. 1ohm 2 Refer to the malfunction analysis discharge protection overload 39 Service Manual Display Method of Outdoor Display Method of Indoor Unit Unit ni Indicator has 3 kinds of Indicator Display during 2 SS Code Malfunction 6 blinking 0 5s and OFF display status and during blinking ON 0 5s and OFF 0 5s Possible Causes Displ ad Operation Cool Heating Green Indicator I lndicator Indicator Indicator Indicator During cooling and drying operation compressor will sto j P Refer to the malfunction analysis while indoor fan will operate overload high temperature System is Q abnormal During heating operation the a resistant complete unit will stop operation During cooling and drying operation compressor will stop E analysis IPM protection loss while indoor fan will operate of synchronism protection and During heating operation the Refer to the malfunction IPM protection I overcurrent protection of phase complete unit will stop current for compressor operation Module O temperature is too high Internal motor fan motor do and blink not operate 11 times 1 Bad contact of DC motor feedback terminal Internal fan motor external fan 2 Bad contact of DC motor motor compressor and electric heater stop operation guide louver stops at present location 4 Motor
31. Installation and Maintenance 27 T Notes for Installation and 27 8 Installation 29 8 1 Installation Dimension 29 5 2 islallali ry Paris Dell u uuu a usnu APA qu eM AME aM SU TEES 31 8 3 Selection of Installation Location 31 8 4 Requirements Forelectric CONNECTION 31 In tallationor Ndoo WN E 31 Service Manual ol uu uuu uuu uuu UU MM 34 8 7 Vacuum Pumping and Leak Detection 35 8 8 Check after Installation and Test Operation 35 9 Maintenance 1 1 snnm 36 36 9 2 Troubleshooting for Main Malfunction 43 9 3 Troubleshooting for Normal 58 10 Exploded View and Parts List 60 JO 60 12 OU JOO bk u uuu 72 11 Removal Procedure 80 11 1 Removal Procedure of Indoor 80 11 2 Removal Procedure
32. al 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 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 e Installation and Maintenance Service Manual Start Measure voltage a
33. alfunction 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 in the air 5 The place with sulfureted 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 height of indoor unit should be between 230 260cm from the floor in order to provide sufficient space for maintenance 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 we
34. ction Indoor fan will stop operation immediately 9 TEMP Button By pressing this button you can see indoor set temperature indoor ambient temperature or outdoor ambient temperature on indoor unit s display The setting on remote controlleris selected circularly as below C display Qc A When selecting or no display with remote controller temperature indicator on indoor unit displays set temperature When selecting 751 with remote controller temperature indicator on indoor unit displays indoor ambient temperature When selecting with remote controller temperature indicator on indoor unit displays outdoor ambient temperature Note e Outdoor temperature display is not available for some models At that time indoor unit receives 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 or DRY 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 B
35. cuit 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 Me SUpport igol mat orcompressor ighten the bolts If add too much refrigerant during maintenance Abnormal sound inside the compressor please reduce refrigerant properly Replace compressor for other circumstances Replace the compressor capacitor Abnormal sound inside the compressor Installation and Maintenance 59 Appendix Appendix 1 Reference Sheet of Celsius and Fahrenheit Conversion formula for Fahrenheit degree and Celsius degree Tf Tcx1 8 32 Set temperature Fahrenheit Fahrenheit display Fahrenheit display Fahrenheit temperature temperature CT CF WP Fahrenheit display temperature CF Celsius C 78 79 80 81 82 83 84 85 6 6 Ambient temperature Fahrenheit Fahrenheit display Fahrenheit ae display Fahrenheit temperature temperature CF CF Fahrenheit display temperature CF Celsius 34 35 356 37 38 39 40 86 87 86 41 42 36 35 6 45 32 33 32 79 80 4 68 600 68 20 46 47 48 49 50 51 80 52 53 9 54 L 32 1 50 ME NE 43 44 9 Appendix 2 Configuration of Connection Pipe connection pipe difference e When the length of connection pipe is above 5m add refrigerant accordin
36. d 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 1 Compressor electric heating band control a 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 The compressor is in on status 2 The compressor is in off status and the outdoor ambient temperature2 5 C c When outdoor ambient temperature sensor is in malfunction status the electric heating band stops operation 2 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 lt Toutdoor ambient lt 3 C 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 agai
37. 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 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 at the valve is much lower than the 1 2 insufficient regulated range i p posuer Malfunction of horizontal louver Horizontal louver can t swing points er maintenance method Malfunction of the IDU fan motor The IDU fan motor can t operate Reet to troubleshooting for H6 for maintenance method in details Malfunction of the ODU fan motor The ODU fan motor can t operate tii poles n r Refer to point 5 of maintenance method for Malfunction of compressor Compressor can t operate PAREN 3 Horizontal Louver Can t Swing Possible Causes Discriminating Method Air conditioner Status Troubleshooting Connect wires according to wiring diagram to make sure all wiring terminals are connected After energization room circuit breaker trips off at Electric leakage for air conditione once Refrigerant is leaking rong wire connection or poor Check the wiring sta
38. ers are opened yes Is the motor started up no Measure the voltage of this foot to neutral Y wire on the mainboard Replace PG motor Is malfunction I no eliminated yes gt Replace the mainboard with the same model lt Com Installation and Maintenance Service Manual 3 Malfunction of Protection of Jumper Cap C5 Troubleshooting for C5 malfunction Is there jumper cap on the mainboard no Appearance of ta the jumper cap Assemble the jumper cap with the same model yes no Is the jumper cap inserted Is malfunction eliminated yes 4 no v Replace the jumper cap with the same model Is malfunction s malfunction eliminated no 9 Insert the jumper cap tightly eliminated no Replace the mainboard with the same model End yes yes C Installation and Maintenance Service Manual 4 Malfunction of Overcurrent Protection E5 Troubleshooting for E5 malfunction Is the supply voltage unstable with big fluctuation Normal fluctuation is within 10 of the rated voltage on the nameplate Malfunction is yes eliminated yes Is the supply voltage too low with overload Malfunction is yes eliminated Malfunction is
39. evap Heat mE exchanger Liquid pipe lt _ condenser side gt K E Valve Strainer Electron Strainer i expansion valve COOLING lt 4 HEATING Connection pipe specification Liquid pipe 1 4 6mm Gas pipe 3 8 9 52mm Technical Information 12 5 Electrical Part 5 1 Wiring Diagram elnstruction Symbol Symbol Color Symbol Symbol Color G Ro Re e bronge Symbol Note Jumper cap is used to determine fan speed and the swing angle of horizontal lover for this model e Indoor Unit Name ROOM TUBE DISPLAY POWER TEM SENSOR TEM SENSOR ALL P YEGN CN1CN2 RES J 8 J S BU N RT1 RT2 1 m WIBU LZ LAT N ROOM TUBE DISP 1 DISP SOM OGU _ _ W3BN E D ac AC L ps E AP2 JUMP WAYEGN PE SWING UD gt HEALTH HEALTH N RD BU COOL PLASMA GENERATOR YEGN FANMOTOR SWING MOTOR U D x P e Service Manual Technical Information Service Manual e Outdoor Unit
40. f operation During heating operation the complete unit stops During cooling and drying operation compressor and outdoor fan stop while indoor fan operates In defect of The Dual 8 Code Display will 3 show and the complete unit stops i During cooling and drying i OFF 15 operation compressor and 4 and blink outdoor fan stop while indoor protection of 7 times fan operates During heating compressor operation all loads stop During cooling and drying OFF 15 operation compressor and Overcurrent 5 and blink outdoor fan stop while indoor protection 5 times fan operates During heating operation all loads stop During cooling operation Communi compressor stops while cation indoor fan motor operates Malfunction During heating operation the complete unit stops Hiah During cooling operation 9 15 compressor will stop while temperature i 7 and blink indoor fan will operate resistant 6 times During heating operation the protection complete unit stops During cooling and drying EEPROM operation compressor will sop I while indoor fan will operate malfunction I During heating operation the complete unit will stop All loads operate normally while operation frequency for compressor is decreased Malfunction OFF 3S Wireless remote receiver and protection of and blink button are effective but can jumper cap 15 times not dispose the related command 36 Possible Causes Possible rea
41. g 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 55 and then off for 10s in drying and other load is stopped then stop the entire 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 time
42. g 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 e Additional refrigerant charging amount prolonged length of liquid pipe X additional refrigerant charging amount per meter Additional refrigerant charging amount for R22 RA07C R410A and R134a 88 1 Standard length of connection pipe e 5m 7 5m 8m 2 Min length of connection pipe is 3m 3 Max length of connection pipe and max high difference 4 The additional refrigerant oil and refrigerant charging required after prolonging connection pipe 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 the basis of liquid pipe Diameter of connection pipe 06 95 12 219 or 622 2 025 4 or 031 8 or 09 5 16or 19 15 Liquid pipe mm Gas pipe mm Cooling only g m Cooling and heating g m 4 20 250 15 15 30 50 350 Service Manual Fahrenheit 86 30 Fahrenheit I Celsius C 30 Outdoor unit throttle 2 2 120 120 222 o 4 380 350 Installation and Maintenance Service Manual Appendix 3 Pipe Expanding Method N Note Improper pipe expanding is the
43. g 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 1 Outdoor temperature sensor hasnt been connected well or is damaged Please check it by referring to the resistance table for temperature sensor 2 The head of temperature sensor hasnt been inserted into the copper tube Refer to the malfunction analysis overload high temperature resistant The input supply voltage is too low System pressure is too high and overload 37 Service Manual Display Method of Outdoor Display Method of Indoor Unit Unit Indicator has 3 kinds of display status and during blinking ON 0 5s and OFF status Possible Causes Indicator Display during Malfunction 6 blinking ON 0 5s and OFF Name Code Displa Operation Cool Heating Yellow Green Indicator Indicator Indicator Indicator Indicator Indicator Decrease frequency due to i high air discharge Limit decrease frequency due to antifreezing 2 Overload temperature is too high Refrigerant is insufficient Malfunction of electric expansion valve EKV All loads operate normally while operation frequency for compressor is decreased 9 OFF 1S and blink 4 times All loads operate normally while operation frequency for compressor is decreased Poor air return in
44. he unit starts operation again 4 Restart the mj Replace outdoor The unit starts Adjust refrigerant Y charging amount Does the unit mainboard AP1 Installation and Maintenance 1 Restart the operation again work normally Replace compressor End 49 Service Manual 8 High temperature and overload protection E8 AP1 below means control board of outdoor unit Main detection 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 is tly If the outdoor ambient temperature is higher than 53 Normal protection please Y use it after improving the Unit restarts normally outdoor ambient temperature Improve the radiating environment of unit clean the heat exchanger and remove surrounding obstacles If the radiating of indoor and outdoor unit is good Unit restarts normally T If the indoor and outdoor fan are running normally Connect normally zl AGUSTA o gt connection y Replace Fan capacitor v Replace Motor Y Y Fan capacitor is broken Replace outdoor mainboard Motor is broken N Y j Replace asad v C End E Y
45. he wall with tapping screws ST4 2X25TA 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 the wall mounted frame As show in Fig 1 Wall Wall Mark in the middle of it Level meter SN Space P Space tothe j to the wall wall above above 150mm 150m NN CU Left Right 055mm 055mm Rear piping hole 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 in Fig 2 2 55 Indoor Outdoor Fig 2 N 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 Left Rear left Fig 3 Left Righ
46. ight 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 Installation and Maintenance e 1 Safety precaution 1 Must follow the electric safety regulations when installing the unit 2 According 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 09K 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 fir
47. indicator on indoor unit is ON Press or button to adjust set temperature Press FAN button to adjust fan speed Press 3I button to adjust fan blowing angle e When selecting dry 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 SI button to adjust fan blowing angle e When selecting fan mode the air conditioner will only blow fan no cooling and noheating All mode indicators on indoor display are off Press FAN button to adjust fan speed Press SI button to adjust fan blowing angle e When selecting heating mode the air conditioner operates under heat mode Heat indicator on indoor unit is ON Press or button to adjust set temperature Press FAN button to adjust fan speed Press SI 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 minutes 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 Holding or button 2s later set tem
48. irstly 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 D the included angle between L D is the same The air deflector will be closed at O 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 O 0 cooling angle O 0 L1 L A1 A B1 B C1 C D1 D 10 Display 1 Operation pattern and mode pattern display All the display patterns will display for a time when the power on 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
49. malfunction control end 3 Fan motor is stalling 5 Malfunction of mainboard rev detecting circuit During cooling and drying Refer to the malfunction operation compressor will stop analysis IPM protection loss while indoor fan will operate Desynchro nizing of During heating operation the of synchronism protection and complete unit will stop overcurrent protection of phase operation current for compressor During cooling and drying operation compressor will stop while indoor fan will operate During heating operation the complete unit will stop operation compressor PFC i Refer to the malfunction analysis protection Outdoor DC fan motor and blink malfunction 23 times Outdoor DC fan motor DC fan motor malfunction or malfunction lead to compressor system blocked or the connector stop operation loosed O compressor stop operation and Outdoor fan motor will stop To protect the electronical 30s latter 3 minutes latter components when detect high fan motor and compressor will power restart OFF 3S OFF 1S and blink and blink 20 times 9 times power protection Indoor unit and outdoor unit doesn t match OFF 3S OFF 1S and blink and blink 19 times 16 times compressor and Outdoor fan Indoor unit and outdoor unit doesn t motor can t work match N During cooling and drying operation compressor will stop while indoor fan will operate During heating opera
50. n after 2min of last stop e Technical Information Service Manual Part Il Installation and Maintenance 7 Notes for Installation and Maintenance Safety Precautions Important 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 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
51. nd aim the pipe joint at the bellmouth of pipe As show in Fig 22 gas valve Fig 22 3 Pretightening the union nut with hand 4 Tighten the union nut with torque wrench 34 Service Manual 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 65 70 75 5 Connect Outdoor Electric Wire 1 Let the connection wire sleeve go through the two holes of baffle tighten the connection joint of sleeve and baffle remove the wire clip connect the power connection wire to the wiring terminal according to the color fix them with screws As show in Fig 23 e yellow green Connect to indoor unit Grounding ile Wiring boad b Wire clip Handle Fig 23 Note the wiring connect is for reference only 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 ge
52. nic leakage detector 8 Vacuum pump 9 Pressure meter 10 Pipe pliers pipe cutter 11 Pipe expander pipe bender 12 Soldering appliance refrigerant container e Q Installation and Maintenance Service Manual 8 Installation 8 1 Installation Dimension Diagram Installation dimension diagram Space to the ceiling Space to the wall mie Z Space to the wall pE L o H n i Ab cm Above x Air outlet side Space to the floor The dimensions of the space necessary for proper installation of the unit include the minimum permissible distances to adjacent parts Space to the obstruction Air inlet side 50cm Above Space to the wall 50cm Above gt Air outlet side ochematic diagram being reference only outdoor unit is with variation please refer to real product for authentic information Installation and Maintenance e 29 Service Manual Installation procedures Start installation Preparation before installation Read the requirements for electric connection Select indoor unit Select outdoor unit installation location installation location Install wall mounting
53. nt is bad improve the radiating environment and clean the heat exchanger N Is the malfunction eliminated Too much load of the system causes high temperature of compressor after working for a long time decrease the load for operation Is the malfunction eliminated v Replace outdoor mainboard AP1 End Installation and Maintenance e 53 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 unit is damaged Malfunction diagnosis process If power plug is connected well with the socket X Connect the plug correctly Is the malfunction eliminated y Check the connection wire between reactor mainboard N and situation of connection econnect the wire or replace the connection Power on and wire according to the restart the unit wiring diagram If there is short circuit or th connection wire is loose Is the malfunction eliminated Check the surface of reactor coil N Power on and restart the unit Is the malfunction eliminated If it is damaged Y Replace the reactor N Y Replace outdoor mainboard AP1 C 54 e In
54. of Outdoor Unit 83 Appendix n u vww e 88 Appendix 1 Reference Sheet of Celsius and Fahrenheit 88 Appendix 2 Configuration of Connection 88 Appendix 3 Pipe Expanding Method 89 Appendix 4 List of Resistance for Ambient Temperature 90 Service Manual Part Technical Information 1 Summary Indoor Unit YEHJXHOO9BAMT FX YEHJXH012BAMT FX Technical Information Outdoor Unit YEHJYH009BAMTA X YEHJYH012BAMTA X Remote Controller E E T r ONOFF 5 ae 0 OF Ga Service Manual Technical Information Service Manual 2 Specifications l CB181005800 CB181005700 CB171007700 CB171007600 CB163005601 Product Code CB163005501 CB145003700 CB145003600 CB143001300 CB405002901 CB143001400 YEHJZH009BAMTAFX YEHJZH012BAMTAFX Rated Voltage Supp Rated Frequency Phases ft j Power Supply Mode P Cooling Capacity Heating Capacity Min Max Cooling Power Input Min
55. ompressor blinking blinking maximum ON ON frequence in 0 25s 0 25s test state Showing during max cooling or max heating test NO Ci Showing during nominal cooling or nominal heating test 38 e Installation and Maintenance Service Manual Malfunction Name 2 0 55 sen c Cool Indicator 8 during blinking ON Ds 0 25s and OFF Installation and Maintenance Compressor intermediate frequence in test state O Overcurrent protection of phase current for compressor N N N and blink 15 times Charging malfunction of capacitor N Malfunction of module temperature sensor circuit Module high temperature protection OO e Decrease frequency due to high temperature resistant during heating operation Static dedusting protection O N Overload protection for compressor oO Display Method of Indoor Unit Display Method of Outdoor Unit Indicator has 3 kinds of display status and during blinking ON 0 5s and OFF Indicator Display during Dual 8 blinking ON 0 5s and OFF status 0 5s Heating Yellow Red Green Indicator Indicator Indicator Indicator during blinking ON 0 25s and OFF 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 st
56. 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 Octa 1 2 3 4 5 6 7 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 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 Ost 1 2 3 4 5 6 7 16 16 16 16 16 16 16 16 16 6 Indoor Fan Control 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 e Technical Information Service Manual 1 Cooling mode in auto cooling mode or normal cooling mode the auto fan speed will run at below mode a When Tamb 2Tpreset 2
57. oor 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 Z 3 min Outdoor fan Indoor fan Z Preset speed BON Stop 2 Dehumidifying Mode 17 Working conditions and process of dehumidifying If T amp gt T prese 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 preset 2 C lt T amb lt T preset the compressor remains at its original operation state If T amp T preset 2 C the compressor will stop the outdoor fan will stop with a time lag of 30s and the indoor fan will operate at low speed 2 Protection Protection is the same as that under the cooling mode Technical Information e 21 22 Service Manual 3 HEAT Mode 1 Working conditions and process of heating If 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
58. op 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 OFF 3S OFF 1S and blink and blink 3 times 8 times while indoor fan will operate During heating operation the complete unit will stop operation operation compressor will stop Possible Causes Showing during middle cooling or middle heating test Refer to the malfunction analysis 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
59. or follow the specification damage the parts Is there any obstruction lt may cause insufficient cooling in air inlet and air outlet heating The dust and sundries caused It may cause malfunction or 10 during installation damaging the parts removed 1 The gas valve and liquid It may cause insufficient cooling 11 valve of connection pipe heating capacity are open completely 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 the operation is normal or not e f the ambient temperature is lower than 16 the air conditioner can t start cooling 35 Service Manual 9 Maintenance 9 1 Error Code List Display Method of Outdoor Display Method of Indoor Unit Unit Indicator has 3 kinds of Indicator Display during Malfunction blinking ON 0 5s and OFF display status and during Nome oyag blinking ON 0 5s and OFF AIC status Code 0 95 Operation Heating Yellow Green Indicator Indicator Indicator Indicator Indicator Indicator During cooling and drying High operation except indoor pressure fan operates all loads stop protection o
60. perature 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 adjusted 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 4a high d kusiku Sikuri I Note e Under AUTO speed air conditioner will select proper fan speed automatically according to ex factory setting e Fan speed under dry mode is low speed 5 SI Button Press this button can select up amp down swing angle Fan blow angle can be selectedcircularly as below MTM 1 no display gt A vit horizontal louvers stops at current position e When selecting 3I air conditioner is blowing fan automatically Horizontal louver will automatically swing up amp down at maximum angle e When selecting I E 1 1 air conditioner is blowing fan at fixed position Horizontal louver will stop at the fixed position e When selecting gt 3 2M air conditioner is blowing fan at fixed angle Horizontal louver will send air at the fixed angle e Hold SI button above 2s to set your required swing angle When reaching your required angle release the button Note 1 ES H I f Z2 ma
61. rature Cooling drying internal fan motor stops operation while other loads stop operation heating AC stop operation During cooling and drying operating compressor stops while indoor fan operates During heating operation the complete unit will stop operation During cooling and drying operation compressor stops while indoor fan will operate During heating operation the complete unit will stop operation During cooling and drying operation compressor will sop after operating for about 3 mins while indoor fan will operate During heating operation the complete unit will stop after operating for about 3 mins All loads operate normally while operation frequency for compressor is decreased All loads operate normally while operation frequency for compressor is decreased Nominal cooling mode 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 damaged 1 Loosening or bad contact of Indoor evaporator temp sensor and mainboard terminal 2 Components on the mainboard fall down leads short circuit 3 Indoor evaporator temp sensor damaged check temp sensor value chart for testing 4 Mainboard damaged Outdoor temperature sensor hasnt been connected well or is damaged Please check it by referrin
62. ries 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 receiving window on indoor unit e he 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 pattery BOX e When you don t use remote controller for a long time please take out the batteries e f the display on remote controller is fuzzy or there s no display please replace batteries Emergency Operation Panel If remote controller is lost or damaged please use auxiliary button to turn on or turn e off the air conditioner The operation in details are as below As shown in the fig 22 Open panel press aux button to turn on or turn off the air conditioner When the air conditioner is turned on it will operate under auto mode Technical Information Service Manual 6 2 Brief Description of Modes and Functions 1 Temperature Parameters Indoor preset temperature Tpreset Indoor ambient temperature T amb 2 Basic Functions Once energized in no case should the compressor be restar
63. ring cover and then take down the cover As show in Fig 11 Panel Screw Fig 11 Wiring cover 2 Fix the wire crossing board on connection wire sleeve at the bottom case let the connection wire sleeve go through the wire crossing hole at the back of indoor unit and then pull it out from the front As show in Fig 12 fus connection wire sleeve Fig 12 3 Remove the wire clip connect 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 HAHA blue Connect to outdoor unit Wiring board N 2 3 A 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 N 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 witho
64. rminals 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 WCS fter energization air switch trips off Select proper air switch improper After energization operation indicator is bright Replace batteries for remote controller Malfunction of remote controller While no display on remote controller or buttons HOMERO SCIO Repair or replace remote controller 2 Poor Cooling Heating for Air Conditioner Possible Causes Discriminating Method Air conditioner Status Troubleshooting Set temperature is improper Observe the set temperature on remote controllerj Adjust the set temperature Rotation speed of the IDU fan blow Set the fan speed at high or medium motor is set too low Filter of indoor unit is blocked Check the filter to see it s blocked Clean the filter Check whether the installation postion is proper l Installation position for indoor unit ccording to installation requirement for air djust the installation position and install the and outdoor unit is improper conditione 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
65. rol panel 1 1 Supply voltage is lower than AC175V 2 Wiring terminal 4V is loosened or heating operation the complete broken unit will stop operation During cooling operation compressor will stop while indoor fan will operate during heating the complete unit will stop operation 3 4V is damaged please replace 4V Replace outdoor control panel AP1 Service Manual Display Method of Indoor Unit Display Method of Outdoor Unit Indicator Display during Indicator has 3 kinds of display Malfunction Dual 8 blinking ON 0 55 and OFF status and during blinking ON Code 10 55 0 55 and OFF 0 55 status Possible Causes Display Operation Cool Heating Yellow Red Green Indicator Indicator Indicator Indicator Indicator Indicator Normal OFF 0 55 communica and blink tion OFF 35 Defrosting will occur and blink healing once i mode Compressor will 54 Defrosting auring OFF 1S Its the normal state blinking operate E eee while indoor fan will stop 0 5s operation 42 e Installation and Maintenance Service Manual 9 2 Troubleshooting for Main Malfunction 1 Malfunction of Temperature Sensor F1 F2 Installation and Maintenance Troubleshooting for F1 F2 malfunction Y Is the wiring terminal between the temperature sensor andthe controller loosened or poorly contacted yes Insert the temperature sensor tightly
66. sons 1 Refrigerant was superabundant 2 Poor heat exchange including filth blockage of heat exchanger and bad radiating environment Ambient temperature is too high 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 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 Refer to the malfunction analysis overload high temperature resistant Replace outdoor control panel 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 AP1 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 Service Manual Display Method of Outdoor Display Method of Indoor Unit Unit Indicator has 3 kinds of Indicator Display during blinking ON 0 5s and OFF display status and during Dual 8 blinking ON 0 5s and OFF 0 5s Code 0 5s h Operation
67. st 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 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 31 in the holes 3 Fix the wall mounting frame on t
68. stallation 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 1 is damaged Malfunction diagnosis process lt If the unit operates normally before malfunction Y Check built in wiring of indoor and outdoor unit Replace the If the wiring is wire damaged N Y Check the malfunction N with communication malfunction detector Is the malfunction eliminated alfunction of outdo ommunication N v N Check the connection wire according to the wiring diagram If the connection wire is connected well N Reconnect the wire or replace the connection wire according to the wiring diagram Is the malfunction outdoor mainboard 1 Is the malfunction Replace indoor x mainboard AP2 eliminated Installation and Maintenance e eliminated 55 Service Manual 13 Flow chart for outdoor communitcation circuit detecting 56 1 Test the voltage between N point of wiring board and communication cable with univers
69. 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 N 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 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 Drain vent CE Chassis Outdoor drain joirt Drain gt At least 3cm above the floor 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 Imm v handle Foot holes Fig 21 Fi g 20 4 Fix Outdoor Unit 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 a
70. t Cut off the hole Fig 4 32 Service Manual 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 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 joint wrench Union nut Pipe Union nut Pipe Indoor pipe Fig 5 A Insulating pipe Fig 7 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 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 in Fig 9 Drain hose Outlet pipe Tape Fig 9 N 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 a 7 Insulating pipe Fig 10 Installation and Maintenance Service Manual 7 Connect Wire of Indoor Unit 1 Open the panel remove the screw on the wi
71. t 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 in 1 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 Itotal 7A frequency rise will not be allowed if Itotalz8A the compressor 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 1 Working conditions and process of AUTO mode a When T ambient gt 26 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 C lt T ambient x25 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
72. t the Test 10 position as shown in the diagram with a voltmeter _ Value jumping de zZ Measure voltage at the Test 15 position as shown in the diagram with a voltmeter Value jumping N gt Y Fault with Measure voltage at the Test 11 position as shown in the diagram A with a voltmeter outdoor unit bb Value jumping N Measure voltage at the Test 12 position as shown in the diagram with a voltmeter es Value jumping Y Y The communication circuit of the outdoor End unit is normal ln A Installation and Maintenance e 57 Service Manual 9 3 Troubleshooting for Normal Malfunction 58 1 Air Conditioner Can t be Started up Possible Causes Discriminating Method Air conditioner 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 connection for power plug and the buzzer can t give out sound supply 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 te
73. t the time for timer off After pressing this button D icon disappears and the word OFF on remote controller blinks 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 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 lt icon on remote controller will be displayed Press this button again to cancel x fan function icon will disappear Note e When x fan function is started up 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 fun
74. ted 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 The condition and process of cooling If Tamb 2Tpreset COOL mode will act the compressor and outdoor fan will run and the indoor fan will run at the set speed If Tamb STpreset 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 Tamb STpreset 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 C 30 C Tamb Start cooling Tpreset Original operating status Tpreset 2 gt 6 min gt 3 min 26 min Stop cooling Compressor v Outdoor fan Indoor fan Setting fan s Stop Protection 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 ind
75. ting Pressure of gas pipe Inlet and outlet pipe Rated cooling connecting indoor and temperature of heat Fan speed of Fan speed of condition DB WB Model E p pe montes or mi CRET indoor unit outdoor unit revolution rps 20 o ama 4 i 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 2 5 Noise Curve Indoor side noise when blowing Outdoor side noise when Compressor speed changed 55 09K lt lt n m m 12K 9 S 50 9 8 E O 2 2 DINE DET n TNNT 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 180 9 0 130 542 173 3 2 Outdoor Unit YEHJYHOO9 12BAMTA X 257 714 Doon OVS SSO s I 0 H 286 Unit mm Technical Information e Service Manual 4 Refrigerant System Diagram Cooling and heating model Indoor unit Outdoor unit Gas pipe side Valve E ub Discharge Heat Suction Accumlator exchanger evaporator
76. tion 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 bolt 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 27 28 Service Manual Main Tools for Installation and Maintenance 1 Level meter measuring tape 2 Screw driver 3 Impact drill drill head electric drill 4 Electroprobe 6 Torque wrench open end wrench inner hexagon spanner 7 Electro
77. tion the complete unit will stop operation Failure start up 9 OO O Refer to the malfunction analysis A e o Installation and Maintenance Service Manual Display Method of Outd Display Method of Indoor Unit ind m 9987 Indicator has 3 kinds of display status and during blinking ON 0 5s and OFF Indicator Display during Dual 8 iia ON 0 5s and OFF Code Display Malfunction Name status Possible Causes Malfunction of phase current DC bus bar Malfunction of complete units current detection running module temperature Installation and Maintenance OFF 3S and blink 13 times and blink 13 times OFF 3S and blink and blink 18 times and blink 13 times and blink 8 times and blink 11 times 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 and drying operation the compressor will stop while indoor fan will operate During heating operating the complete unit will stop operation If this malfunction occurs during Replace outdoor control panel 1 Supply voltage is unstable Theres circuit malfunction on outdoor units control panel AP 1 please replace the outdoor units cont
78. tion 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 Service Manual Installation and Maintenance Service Manual C H3 or E4 is displayed gt 30min after power off the unit Y If the overload protector SAT well connected N Y Under ambient temperature est the resistance of overload protector with ohmmeter resistance value should 1000 Y v Connect wire N If the wiring terminal FA of electronic N according to wiring expansion valve is well connected diagram Y Replace EKV coil of electronic expansion valve Is the malfunction eliminated N v v Check the situation of refrigerant if there is leakage please charge refrigerant according to the service Is the malfunction Replace overload protector SAT eliminated Compressor overload protection terminal is not connected well with the mainboard reconnect them correctly N Is the malfunction eliminated eat exchange of unit is not good heat exchanger is dirty and unit radiating environme
79. tting into the room As show in Fig 24 The drain hos can t raise upwards Fig 25 Fig 24 N 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 e Installation and Maintenance Service Manual 3 The water outlet can t be placed in water in order to drain smoothly As show in Fig 27 x x The drain hose can t be fluctuant 11017772 gt x The drain hose The water outlet can t be placed can t be fluctuant in water The water outlet can t be fluctuant 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
80. tus according to circuit connection diagram irmly Stepping motor is damaged Stepping motor can t operate Repair or replace stepping motor Main board is damaged the main board with the same model can t operate e Installation and Maintenance 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 according 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 the deviation range indicated on the nameplate of fan capacitor Power voltage is a little low or Use universal meter to measure the power supplyle y LO besaran high voltage The voltage is a little high or low 99 quip ge Teg Use universal meter to measure the resistance Coil of compressor is burnt out Repair or replace compressor between compressor terminals and it s O Cylinder of compressor is blocked Compressor can t operate Repair
81. ut 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 Installation and Maintenance e 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 Indoor and outdoor power cord Fig 14 Drain hose Connection pipe Band Fig 15 Indoor power cord N 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 Outdoor Indoor e LL Sealing gum zl 19 16 Lower hook of wall mounting frame N Note Do not bend the drain hose too excessively in order to prevent blocking 33 8 6 Installation of Outdoor Unit 1 Fix the
82. utton Press this button to turn off display light on indoor unit 25 icon on remote controller disappears Press this button again to turn on display light 594 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 g 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 and F Technical Information e 19 Service Manual 20 Operation Guide 1 After putting through the power press ON OFF button on remote controller to turn on S Be air conditioner d e 2 Press MODE button to select your required mode AUTO COOL DRY FAN HEAT Press or button to set your required temperature Temperature can t be 4 C adjusted under auto mode FAN 4 Press FAN button to set your required fan speed auto low medium and high speed 5 Press SI button to select fan blowing angle 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 AAA 1 5V dry batte
83. without notice please refer to the nameplate of the unit Technical Information Service Manual 2 2 Operation Characteristic Curve Cooling Heating 8 Current A Condition Condition Indoor DB 27 C WB19 C 2 Indoor DB 20 C i Indoor air flow Turbo Indoor air flow Turbo U Pipe length 5m Pipe length 5m Voltage 230V Voltage 230V 0 20 40 60 80 100 120 0 20 40 60 80 100 120 Compressor Speed rps Compressor Speed rps 2 3 Capacity Variation Ratio According to Temperature Cooling Heating 110 120 eser esce 100 90 80 S 5 80 60 E gt 2 a S i 70 40 Condition Condition Indoor DB27 C WB19 C Indoor DB20 C 60 Indoor air flow Turbo 20 Indoor air flow Turbo Pipe length 5m Pipe length 5m 50 0 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 7 5 0 5 10 Outdoor temp C Outdoor temp C Technical Information e Service Manual 2 4 Cooling and Heating Data Sheet in Rated Frequency Cooling Pressure of gas pipe Inlet and outlet pipe Rated cooling connecting indoor and temperature of heat Fan speed of Fan speed of condition C DB WB x P p p Compressor unit nae indoor unit outdoor unit revolution rps a 27 19 ETE OA 9 1 1 5 E TURBO High 60 Hea
84. y 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 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 If hold or button 2s later time will change quickly Release this button when reaching your required time Press CLOCK button to confirm the time D icon stops blinking Note e Clock time adopts 24 hour mode e he 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 ON button can set the time for timer on After pressing this button icon disappears and the word ON on remote e Technical Information Service Manual controller blinks Press or button to adjust TIMER ON setting After each pressing or button 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 ON will stop blinking icon resumes displaying Cancel TIMER ON Under the condition that TIMER ON is started up press TIMER ON button to cancel it e TIMER OFF button TIMER OFF button can se

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