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1. 63 Installation Install Drain Hose 1 Connect the drain hose to the outlet pipe of the indoor unit using appropriate connections 2 Insulate the condensate to prevent condensation 3 Fasten the condensate lineset and wring together to prevent damage and movement Slant the drain hose downward for smooth drainage outlet pipe of outlet pipe of PIP drain hose indoor unit indoor unit outlet pipe of indoor unit SEE SEDE am Install Line Set 1 Install lineset and wiring from the outside through the wall sleeve 2 Bend the indoor lineset Note a tube bender will speed up the process 3 Carefully remove flare nut from indoor coil Listen for holding charge from indoor unit No charge may indi cate a leak and should be tested 4 Usea flaring tool if necessary to create the flare con nect tubing tightening to the torque listed below Tubing Size Torque foot pounds Torque inch pounds m 64 Use only dry nitrogen with a pressure regulator for pressurizing unit Pressurize with 150 psi of dry nitro gen 2 Apply soap and water to check whether the joints are leaky A leak detector can also be applied for a leakage test Hint You may want to perform leak testing and evacua tion before wiring to save time electrical connections can be completed while your vacuum pump is running Note The outdoor unit contains a refrigerant charge leave liqu
2. Yes ue Replace Outdoor Verify high pressure with gauge High Pressure switch abnormal Main Board Yes Replace pressure switch Check mode of indoor unit setting Refer to instruction manual of indoor unit Completely open all valves Check if gas and liquid valves are open Check if panel of outdoor unit is firmly closed Check air flow of indoor and outdoor units for obstructions Yes Close the panel Remove the barrier No Check for indoor and outdoor fan operation Measure the fan motor input Measure swing motor signal input Check operation of swing louver Yes Check indoor filter and coils for dirt Refer to care and maintenance Check inlet and outlet of main pipes Syst anes blocked No connecting each indoor unit and capillary of Salle tall indoor and outdoor units Replace the parts such as filter etc as needed 142 E3 Error Codes Compressor Low Pressure Protection ES Fault amp Status Possible Causes Low Pressure Protection 1 Low refrigerant charge Status 2 Improper indoor mode setting Cooling operation compressor stops while 3 Improper fan operation indoor fans runs Heating operation complete 4 Refrigerant valve not fully opened unit stops Low Pressure Protection Yes Verify low pressure with gauge Check if the refrigerant is sufficient Yes Refer to high pressure protection Charge refrigerant according to the amount specified in the namep
3. 13 ss4 12592 fes 1490 3105 117 24226 0205 da 572 2473 fes isos 2998 118 as 59 0 236 67 i326 2896 119 e feos 2253 fes issa 2797 120 17 626 2151 69 1562 2702 11 as j 644 12054 fzo isso 26m f 12 19 662 1963 71 i5s98 2523 Ju 20 680 1875 72 fieis 2439 124 21 jess 17933 fz 1634 2358 15 22 716 fiz 74 1652 228 126 24 752 15 68 76 1688 2133 235 70 fis 77 1706 2064 26 788 1436 78 i724 1997 27 soo 574 79 1742 193 28 824 fisis fso 1760 1871 29 42 fize fs 78 fisu 3o 860 207 82 i796 1754 s jJsz8 1157 ss i814 169 128 129 130 131 132 133 134 135 EN EN un E EN u o3 74 1639 75 1670 2206 127 un E E ME uA NN E EN 206 Appendix 2 Resistance Table of Outdoor and Indoor Tube Temperature Sensors 20K Temp Temp Temp Temp Temp Temp C F C F C F 19 22 fisia 33 ona fisis fess fisso 2125 as 04 fina fsa fos2 159 fse fises 2059 a7 pra 621 35 foso 1304 fsz isss 1996 16 32 1533 fse 968 151 f fss 1904 1934 as s0 fas 37 986 12 fs9 122 1875 aa jos 11372 38 1004 1152 oo 1940 1 818 13 s 199 39 i102 fios fo 1958 1736 12 104 123 fso 1040 1062 171 u 122 fues 41 15
4. If its no use please replace control panel API 1 No jumper cap insert on mainboard 2 Incorrect insert of jumper cap 3 Jump er cap damaged 4 Abnormal detecting circuit of mainboard Nominal cooling mode times run under cooling mode for gathering refrigerant 96 Models NEO09HP230V1AS amp NEO12HP230V1AS Malfunction Indoor 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 Indicator Display during blink ing ON 0 5s and OFF 0 5s Off 3S and blink 1 times Off 3S and blink twice Off 3S and blink 3 times Off 3S and blink 4 times Indicator has 3 kinds of display status and during blinking ON 0 5s and OFF 0 5s Operation Cool eating Yellow med Green Off 1S and blink 6 times Off 1S and blink 5 times A C Status During cooling and dry ing operating compres sor stops while indoor fan operates During heating operation the complete unit will stop operation AC stops operation once reaches the setting temperature Cooling drying internal fan motor stops operation while other loads stop operation heating AC stop operation During cooling and dry ing operating compres sor stops while indoor fan operates During heating o
5. Tfrozen preventing normal speed frequency reducing temperature lt Tinner pipe lt Tfrozen preventing frequency limited temperature you should limit the frequency rising of compressor 3 Reducing frequency at normal speed If Tfrozen preventing high speed frequency reducing temperature Tinner pipe Tfrozen preventing normal speed frequency reducing temperature you should adjust the compressor frequency by reducing 8Hz 90s till the lower limit 4 Reducing frequency at high speed Itf Tfrozen preventing power turn off temperature x Tinner pipe Tfrozen preventing high speed frequency reducing temperature you should adjust the compressor frequency by reducing 30Hz 90s till the lower limit 5 Power turn off If the T inner pipe Tfrozen preventing power turn off temperature then frozen preventing protect to stop the machine If Tfrozen preventing frequency limited temperature T inner pipe and the compressor has stopped working for 3 minutes the whole machine should be allowed to operate 6 If the frozen preventing protection power turn off continuously occurs for six times it should not be resumed automatically and you should press the ON OFF button to resume if the fault keeps on During the process of running if the running time of compressor exceeds the tevaporator frozen preventing protection times zero clearing time the times of frozen preventing power turn off should be cleared to recount The mode of stoppi
6. works Heating AP1 all will stop tion Cooling Please refer to dehumidifying troubleshoot Compres OFF 3S compressor ing sor current and blink stop running overcurrent 15 times Fan motor protection works Heating all will stop Under the It is normal heating mode function compressor Defrosting running in door outdoor fan motor stop working OFF 3S and blink 2times Electrostatic dedusting protection Cooling 1 Wire ter dehumidifying minal OVC compressor COMP loosen stop running or circuit has Fan motor problem the OFF works Heating resistance of 3S and all will stop SAT should be blink 3 lower than 1 times ohm 2 Please Compressor overload protection refer to trou bleshooting exhaust over load protec tion 11l Models NEO18HP230V1AS amp NEO24HP230V1AS Indoor Unit Displaying Method Outdoor Unit Display LED Indicator Display during blink Indicator has 3 kinds of display status and Malfunction i uM Malfunc ing ON 0 5s and OFF 0 5s during blinking ON 0 5s and OFF 0 5s A C Status Name tions Running Cooling Heating D40 D5 D41 D6 D42 D16 D43 D30 LED LED LED System abnor Cooling Please refer mal dehumidifying to trouble OFF 3S compressor shooting and blink stop running 4 times Fan motor works Heating all will stop IPM protec Cooling Please refer tion dehumidifying to trouble OFF 3S compressor shooting an
7. GREE Change for Life Neo DUCTLESS SYSTEM Installation Service amp Troubleshooting Models NEOO9HP115VIA NEO12HP115V1A NEOO9HP230V1A NEO12HP230V1A NEO18HP230V1A NEO24HP230V1A NEO30HP230V1A NEO36HP230V1A Table of Contents E pate PEECIUEIOHS ai AA rene ae A 4 Model Number dencia os 5 Phsical oc Plectrieal Db eds 6 9 POS VV 10 Refrigeration Cycles and C7 ONO INC NEG sese et uat Muti EON Md 11 15 Indoor X Outdoor AAA EO 16 18 o E e E ETE E A E A E A E A E 19 52 FRET OLS Cono OPET Oea a a E E E E EE EET EIIE OE EAIA EEEE 53 57 Refrigerant Lines Connection Evacuating and Chatono pesares robaste 58 66 Installation Filter Maintenance and Emergency Operation ssssesesssssesessssssssssrsesesrssesesesesesesesresereseseseses 67 Blecttica S Mena PM 68 79 Oitdoor Printed CCU BO T eaan EE EE E E E EE E EE EE 80 Iroubleshoo tine Indoor Componente EEE E REEE TEESE 81 82 Troableshooting Qutdoor CONDONES naaa 83 92 EAE ams e N E A A AE eee ce eee ee 93 127 Lraugblesmootne Ow CAT S o cene Pr S EEE A EE 128 139 Fdult Codes Danosse ae ee metta A EE 140 160 Diss Ce mD LIS olt LINGO FCS eaea EO EEE AE E E 161 163 Disassembly of 9 000 amp 12 000 btuh 120 volt Outdoor SyStems vcciacssvcsscdscesecersaxtcosancacnavacervacnedanecnveneoseantbes 164 167 Disassembly of 9 000 btuh 240 volt Indoor SysteM Sito ord
8. Style Color Designation 09 9 000 btuh 12 12 000 btuh 18 18 000 btuh 24 24 000 btuh 30 30 000 btuh 36 36 000 btuh AC Cooling Only HP Heat Pump HC Heat Cool 230V 208 20V 60Hz 1PH 115V 115V 60Hz IPH Physical amp Electrical Data cont Model NEOO9HP115V1AS NEO12HP115V1AS Power Supply i5viebz voz System Performance System Specifications Compressor Type DC Inverter Driven Twin Rotary door NeUGross Weight Indoor__ lb 24 39 24 31 NetiGross Weight Outdoor Ib 7e 80 BIT Condenser Coil Tyee Gd Fin Coated Line Set Size Liq Suction 1 4 318 1 4 318 Feb 25 E Pre Charged Lineset Ft Feet Max Total Piping Length Feet Feet 50850 4 A98 of Wires per Local Code Wire Size and of Conduc tors from Indoor to Outdoor 14awg 4c unit Note The manufacturer reserves the right to modify the design and or change the specifications without notice Please refer to specific installation manual for current information 6 Physical amp Electrical Data cont Model NEOO9HP230V1AS NEO12HP230V1AS Power Supply 208 230v 60Hz 208 230V 60Hz System Performance Operating Range Cooing 5 109 5 109 Operating Range Heating 5 75 System Specifications Compressor Type DC Inverter Driven Twin Rotary Sound Level d 50 4 8 4 NeUGross Weight
9. YE ll Yellow CTI2 Overload o Red i O S AV XT VT Yellow Green LP 4 Terminal Block AO BN Brown r lrulll R rr Prr WA YEGN EVAPORATOR 0 U T DISP1 DISP WIBU iy REM d 0 NENNT R J N l EL DEAS Gm IL LL Sy ee LLL ey J ee ee ee ee ee WE ee ee uL ee eo ee Je ee ee eel Circuit diagrams are subject to change without notice please refer to the one supplied with the unit 4 Way Valve NEO30HP230V1AO 230v Outdoor Board Symbol OG Omg GO EathGrud YEGN o B Be Lo BK Bk o o L2 l l il Electric Heater Wwa Wis y 1 Lax 1 Terminal Board i A OY be i P Main PC Board LUL LN LP aN EJ ES oS HP OVCCOMP CH Comp Compressor 4 Way Valve High Pressure Switch High Pressure Switch 2 COM AP1 Temp Sensor Temp Sensor Comp Overload Circuit diagrams are subject to change without notice please refer to the one supplied with the unit 77 Electrical Schematics NEO36HP230V1AH 230v OG Orange Earth Ground YE pp Yellow CTI2 Overlad O er 7 ORD Red O A i AH BK Back o gem A A A A A AA A ARA meum umm RA RA mam ARA RA AR RA A RA RA RA RA AAA mas AAA ARA meme emm em AA AS AS RA AAA AA AA AA AAA AAA AA ARA A AA AA A AA A RA RA AAA A AAA AA AA RA Indoor Board 4 Way Valve YEGN a O A Terminal Block Brown A ROOM
10. feedback Jump wire cap mal function protection Indoor am bient sensor open circuit short circuit Running Cooling Heating D40 D5 aue paris LED LED LED OFF 3S and blink and blink 8 times and blink 11 times and blink 15 times and blink once D43 D30 Cooling com pressor will stop indoor fan motor works Heating all will stop Cooling com pressor will stop indoor fan motor works Heating all will stop Whole unit will stop to run Whole unit will stop to run Cooling dehumidify ing indoor fan motor is running other overloads will stop Heating whole unit will stop to run Please refer to troubleshoot ing Please refer to troubleshoot ing 1 Poor insert for GPF 2 Indoor control board AP1 malfunc tion 3 Indoor motor M1 malfunction Indoor control board AP1 jump cap poor connected please reinsert or replace the jump cap 1 Room temp sensor is not connected with the control panel AP1 2 Room temp sensor is damaged 107 Models NEO18HP230V1AS amp NEO24HP230V1AS Indoor Unit Displaying Method Outdoor Unit Display LED Indicator Display during blinking ON 0 5s and OFF 0 5s Heat Running Cooling ing D40 D5 D41 D6 D42 D16 D43 D30 LED LED i5 Cooling dehu 1 Room tem midifying ex perature sensor cept the indoor hasn t been fan motor is connected well running others
11. with indoor will stop to run units control Heating all panel AP1 stop running refer to the wiring diagram for indoor unit 2 Room temperature sensor is dam aged please refer to the resistance table of temperature sensor I Indicator has 3 kinds of display status and Malfunction Dual 8 during blinking ON 0 5s and OFF 0 5s A C Status Malfunctions Name Code Display Indoor evap orator sensor o F2 circuit open short circuit Outdoor am bient sensor mn F3 circuit open circuit short 108 Cooling dehu 1 Room tem midifying ex perature sensor cept the indoor hasn t been fan motor is connected well running others with indoor will stop to run units control Heating all panel AP1 stop running refer to the 3s and blink 3 times wiring diagram for indoor unit 2 Room temperature sensor is dam aged please refer to the resistance table of temperature sensor Models NEO18HP230V1AS amp NEO24HP230V1AS Indoor Unit Displaying Method Indicator Display during blinking ON 0 5s and OFF 0 5s Running Cooling LED LED Dual 8 Code Display Malfunction Name Heat ing LED Outdoor OFF condenser 3s and blink 4 times sensor open circuit short circuit Outdoor OFF air exhaust 3s and blink 5 times sensor open circuit short circuit Outdoor Unit Display LED Indicator has 3 kinds of
12. 208230v 60Hz 208230V 60Hz System Performance System Specifications Compressor Type DC Inverter driven Twin Rotary Soundlevel dP NetGross Weight Indoor th 22 29 PR NetGross Weight Outdoor ib 5 90 esla Condenser Coil Type ld Fin Coated Line Set Size Lig Suction 1 4 5 8 1 4 5 8 MCA ANA IEA Wire Size and of Conduc tors from Indoor to Outdoor 14awg 4c unit Note The manufacturer reserves the right to modify the design and or change the specifications without notice Please refer to specific installation manual for current information Product Introduction he Neo Ductless split heat pumps are single zone units available in size from 9000 btuh to 36 000 btuh providing heating and cooling All comfort settings are controlled by a remote control The Neo unit has many features to enhance comfort and efficiency Ihe op eration of these features will be explained later in this service manual Superior inverter technology is used to control ca pacity while maintaining maximum efficiency The Neo systems are equipped with G10 inverter technol ogy providing precise control over the compressor frequency based on operating pressures and tem peratures Should an abnormal condition occur the software will adjust the compressor frequency or shut down the system indicating the appropriate fault The indoor unit contains a digital display which wi
13. 4 Remove axial flow fan and motor Remove the nuts attaching the blade and then re move the axial flow fan Remove the four tapping screws fixing the motor disconnect the leading wire insert of the motor and then remove the motor Remove the two tapping screws fixing the motor support and then pull the motor support upwards to remove it motor support aviation an 176 Disassembly of Outdoor Unit 12K 240 volt unit Warning Wait 10 minutes after power is disconnected before starting disassembly 5 Remove the reactor and isolation sheet Remove screws attached to reactor and then re move the reactor Remove screws attached to the isolation sheet and then remove the isolation sheet 6 Remove f4 way valve assy and condenser Discharge the refrigerant completely unsolder the pipeline connecting the compressor and the con denser assembly and then remove the 4 way valve assembly A isolation sheet 177 Disassembly of Outdoor Unit 12K 240 volt unit Warning Wait 10 minutes after power is disconnected before starting disassembly 7 Remove the gas and liquid valves and valve support Remove the screws attached to the gas valve and unsolder the welding joint between the gas valve and the air return pipe to remove the gas valve NOTE Discharge the refrigerant completely before un soldering When un soldering wrap the gas valve with a wet cloth completely to avoid damag
14. and buffers the system pro tecting the electronics from transient voltage noise The resistance between the coils will be very low approxi mately 3 ohms and should not have any resistance to ground You should disconnect the wires from the reactor before taking any readings Compressor Crankcase Heater Check AAN Compressor Crankcase Heater Resistance Check Unplug the wire connector from the circuit board The resistance should read approximately 2 15K ohms There should be no reading from either wire to ground If readings vary from these measurements replace the heater 88 Troubleshooting Outdoor Components These sensors are a negative coefficient thermistor that decrease in resistance as the temperature increases The sensors are used to monitor the temperature of the refrigerant leaving the indoor coil to maintain a correct superheat operation Please refer to the troubleshooting section for error codes generated by a sensor fault 69 Liquid Line Temperature Sensors These sensors are a negative coefficient thermistor that decrease in resistance as the temperature increases The sensors are used to monitor the temperature of the refrigerant leaving the EEV to maintain a correct superheat operation Please refer to the troubleshooting section for error codes generated by a sensor fault 90 Troubleshooting Outdoor Components The high pressure switch monitors the refrigerant discharge pressure and wil
15. closing 2 The status of 4 way valve control under the heating mode getting power 1 4 way valve power control under heating mode a Starts the machine under heating mode the 4 way valve will get power immediately 2 4 way valve power turn off control under heating mode a When you should turn off the power or switch to other mode under heating mode the power of 4 way valve will be cut after 2 minutes of the compressor stopped b When all kinds of protection stops the power of 4 way valve will be cut after delaying 4 minutes 3 Defrosting control under heating mode a Defrosting begins The power of 4 way valve will be cut after 50s of entering into the defrosting compressor b Defrosting stops The 4 way valve will get power after 50s of exiting the defrosting compressor 4 Evaporator frozen preventing protection function At the mode of Cooling dehumidifying Evaporator frozen preventing protection function is allowed to begin after 6 min of starting the compressor 1 Starting estimation After the compressor stopped working for 180s if Tinner pipe gt Tfrozen preventing frequency limited temperature the temperature of hysteresis is 35 6 F the machine is only allowed to start for operating otherwise it should not be started and should be stopped to treat according to the frozen preventing protection Clear the trouble under the mode of power turn off heating and the protection times are not counted 2 Frequency limited
16. indoor unit air protection of indoor E2 times flow blocked up filter duty unit Stop for exhaust FA blink 7 less refrigerant capillary blocked up protection times ambient temperature is abominable Stop for low voltage E5 blink5 low voltage ambient temperature is protection times abominable cT Ava communication line failure main E E6 PCB failure interfere source con tion malfunction On nect line wrong Stop for compressor blink8 compressor shell over heat less re H3 overload protection times frigerant capillary blocked up DOverlosd protection HA blink 6 ambient temperature is abominable times heat exchanger blocked up pon er PALON as pus IPM module over heat low voltage protection times DC motor control terminal does not DC motor indoor contact well Blade does not rotate unit does not operate fluently due to incorrect installation motor or control panel is damaged Indoor ambient temperature sensor malfunction terminal connect not reliable tem perature sensor malfunction Indoor tube temperature sensor malfunction terminal connect not reliable tem perature sensor malfunction 93 AE ID Models NEO09HP115V1AS amp NEO12HP115V1AS Table 1 State of Outdoor Unit LEDs F Indoor ERN 7 Error Item Unit Possible Cause of Fault isplay Outdoor ambient blink 6 terminal connect not reliable tem temperature sensor times perature sensor malfunction blink 5 terminal c
17. lt 30 2 F is detected for durative 3 minutes the compressor will stop and after 60 seconds the outdoor fan will stop and under cooling mode the indoor fan and the swing motor will remain at the original state If Tevap gt 42 8 F and the compressor has remained at OFF for at least 3 minutes the compressor will resume its original operation state e Total current up and frequency down protection If Itotal lt 16A frequency rise will be allowed if Itotal gt 17A frequency rise will not be allowed if Itotal gt 18A the compressor will run at reduced frequency and if Itotal gt 20A the compressor will stop and the outdoor fan will stop with a time lag of 60s 2 Dehumidifying Mode a Working conditions and process of dehumidifying If Tamb gt Tpreset 1 8 F 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 Product Introduction Basic Functions 30K amp 36K 230 volt If Tpreset 3 6 F lt Tamb lt Tpreset 1 8 F the compressor remains at its original operation state If Tamb lt Tpreset 3 6 F the compressor will stop the outdoor fan will stop with a time lag of 60s and the indoor fan will operate at low speed b Protection Protection is the same as that under the cooling mode 3 Heating Mode a Working conditions and the process of heating If Tamb lt Tpreset 3 6 F the unit enters heat
18. 1096 or shut down power we Restart Is fault Yes nameplate rating repair power supply to unit the correct voltage corrected Yes No Power off unit for 20 minutes then use DV voltmeter to measure the two leads on the capacitor until the voltage is lt 20v Check the connection of the No Connect Power aR Yes M unit is fault reactor is the wiring correct correctly corrected Yes No Replace AP 1 control panel End Troubleshooting 126 Unit Will Not Start oe B Power voltage low Ensure proper voltage should be withing 10 of nameplate Check fuses or circuit No power boda Poor electrical connection Check wire connections Controller fuse open Replace fuse Outdoor unit will not start Defective controller board Replace controller board Indoor and outdoor unit inoperative No power at remote controller Replace remote controller batteries Remote controller not responding Remote controller Jj I malf ncion Press the Auto button If no response check for proper voltage and connections If there is a response check for defective remote controller or indoor receiver T Breaker trips Check for shorted wires Circuit breaker tripping immediately reactor or AP2 board Breaker trips within minutes Individual components of turning on could be defective Eliminate by checking resistance on each individual component Check insulation on
19. 729 19 f 2 2617 71 i598 3364 071 20 so aso 72 1616 3252 0 692 21 jess 1259 73 1634 3144 0 674 22 zt6 12285 74 1652 304 0 658 23 734 ames 75 1670 294 0 64 24 732 1209 76 1688 2844 0 623 as z0 20 77 j 06 2752 0 607 26 788 1914 78 1724 2663 0 592 27 so 813 79 1742 2577 0 577 28 s24 1755 fso 1760 2495 0 563 29 42 fiss 8l 1778 2415 153 2714 0 549 0 js60 fisi 82 i796 2339 134 2732 0535 s jJszs 1543 85 i814 2265 fiss 2750 05201 32 896 1479 fsa 1832 2194 fise 2768 0500 208 Appendix 3 Resistance Table of Outdoor Discharge Temperature Sensor 50K Temp Temp Temp Temp Temp Temp C Pp C F C F 29 02 8555 23 734 5374 75 1670 7224 28 184 7998 124 752 5141 76 1688 6998 27 166 750 25 770 faa 77 106 6761 26 148 7038 126 788 4708 78 1724 6 542 25 130 6608 27 806 4507 6 331 24 ia 608 28 824 4316 6 129 S0 23 94 5806 29 842 4134 5 933 22 76 5489 fso 860 3961 5 746 21 58 5166 fsi 878 3796 5 565 20 40 4865 32 sae6 3638 5 39 19 22 4583 33 914 3488 522 18 04 1432 fsa 92 3345 s6 1868 506 az fra 4074 35 950 3209 4 904 16 32 3845 36 968 3079 4754 15 so 3629 3
20. 8 F is detected the unit will select to run under cooling mode in which case implicit preset temperature is 77 F if Tamb Tpreset 1 8 F the compressor will stop the outdoor fan will stop with a time lag of 1 minute and the indoor fan will run at preset speed and if Tpreset 1 8 F Tamb Tpreset 1 8 F the unit will remain at its original state c Under AUTO mode if Tamb lt Tpreset 3 6 F is detected the unit will select to run under heating mode in which case implicit preset temperature is 64 F if Tamb J gt Tpreset 9 F the compressor will stop the outdoor fan will stop with a time lag of 1 minute and the indoor fan will run under the mode of residue heating blowing and if Tpreset 3 6 F Tamb Tpreset 41 F the unit will remain at its original state The cooling only unit will run under fan mode d Under AUTO mode if 71 6 F lt Tamb lt 78 8 F the unit will remain at its original state B 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 50 Basic Functions 30K amp 36K 230 volt 6 Common Protection Functions and Fault Display under COOL HEAT DRY and AUTO Modes A Overload protection Ttube measured temperatu
21. BROWN WH WHI TE BU BLUE YE YELLON Bk BLACK RD RED 563533555 YEGM YELLOW GREEN 63633565 0G ORANGE Circuit diagrams are subject to change without notice please refer to the one supplied with the unit 69 Electrical Schematics NN NEOO9HP230VIAH Indoor Board NEOO9HP230VIAH 240vac Omg E ee aa Way Valve Yelow Gren XT TermimalBlock Brown 1 VT ilt SOOO Bak ff 000 TUBE ROOM TEMP SENSOR TEMP SENSOR FAN MOTOR LO ey a Ml E RT RTI pa HE TERMINAL TERMINAL ROOM PG PGR BLOCK BLOCK 1 l N Y ee Si SWING UD TT HEALTHN HEALTH p d QD AP2 COM OUT L lt lt Si iy RD YEGN GN AP o BENE RECEIVER AND WNG OOLPLASIA Ge DISPLAY BOARD MOTOR GENERATOR ELEG TRIG BOX NOTE The parts with broken line is applicable to the models with COOL PLASMA GENERATOR i a iL a uL ll nol ee es nes Se ee ee ec ee ER ee c Circuit diagrams are subject to change without notice please refer to the one supplied with the unit 70 eee Electrical Schematics NEO09HP230V1AO Outdoor Board NEOO9HP230V1AO 240vac OG Omg C EathGrund BU Be BK TUBE GUTRGGM EXHAUST m en TEMLSEMSOR TEM SENSOR TEM SENSOR U mE WE YECH L PA Bes n Wa YEGN B 7 RT1 RT RT LIU INI an a en 2 I Ww oS WORD wow Y Von Ws i we wil a O I T o E Ei AL COMP COMPLY C
22. Compressor overloads protection If you measure the compressor overload switch action in 3s the compressor should be stopped for overloading The machine should be allowed to operate after overload protection was measured to resume If the overloading protection continuously occurs for three times it should not be resumed automatically and you should press the ON OFF button to resume The protection times of compressor is allowed to clear after the compressor run tProtection times clearing of compressor overloading 30 minutes 11 Phase current over current protection of compressor During the running process of compressor you could measure the phase current of the compressor and control it according to the following steps 1 Frequency limited If ILimited frequency phase current lt IPhase current lt Tfrequency reducing phase current you should limit the frequency raising of compressor 2 Reducing Frequency If IFrequency Reducing Phase Current xIPhase Current IPower TurnOff Phase Current the compressor shall continue to reduce frequency till the lowest frequency limit or out of the condition of reducing frequency 3 Power turn off If Phase Current IPower TurnOff Phase Current the compressor phase current shall stop working for overcurrent protection if Phase Current lt IFrequency Reducing Phase Current and the compressor have stopped working for 3 min the machine shall be allowed to operate 4 If the overcurrent protection o
23. Connect the indoor unit first then the outdoor unit Use the 3 8 to 1 2 flare adapter if needed Note Over tightening flare nuts may damage flare connections and may cause leaks Tubing Size Torque foot pounds Torque inch pounds 1 4 10 13 124 159 25 3 301 372 Indoor unit piping gy nut Piping EX 50 60 602 726 Y Step 2 System Leak Check Refrigerant lines should be pressurized prior to evacuating system to check for leaks Use only dry nitrogen with a pressure regulator for pressurizing unit Pressurize with 150 psi of dry nitrogen Apply soap and water to check whether the joints are leaky A leak detector may also be used for a leakage test Hint You may want to perform leak testing and evacuation before wiring to save time electrical connections can be completed while your vacuum pump is running Step 3 System Evacuation Note The outdoor unit contains a refrigerant charge leave liquid and gas valves closed 1 After no leaks have been detected connect a vacuum pump to the outdoor unit 2 Connect appropriate hoses to manifold gauge vacuum pump and unit refrigeration connections 3 Evacuate the system until the micron gauge reads no higher than 350 microns 4 Close valve to vacuum pump if pressure does not rise above 500 microns after one minute the evacuation should be complete 5 fit does rise check for leaks and or evacuate longer 6 For refrigerant
24. Indoor Circuit Board Indoor Tube Thermistor Ambient Temperature Sensor Swing Motor 16 Neo 12 000 btuh Outdoor Unit Other Neo models may very slightly Reactor m i 4 Way Valve oy E Exhaust Temp Sensor High Pressure Switch Compressor Note Component locations may vary depending on models 17 Outdoor Air Sensor Electronic Expansion Valve Outdoor tube Sensor 18 pa Basic Functions 9K amp 12K 115 volt 6 2 Brief Description of Modes and Functions 1 Temperature Parameters Indoor preset temperature Tpreset Indoor ambient temperature Tamb 2 Basic Functions Once the unit energized the compressor shall never be restarted except 3mins interval at least For the first energization if the unit is at off status before power failure the compressor can be restarted without 3 min delay But if the unit is at ON status before power failure the compressor shall be restarted with 3mins delay Once the compressor is started up the com pressor wont stop running within 6mins with the change of room temperature 1 Cooling Mode 1 Under this mode fan and swing function will be operating under setting mode and temperature setting range is 61 86 F 2 When outdoor unit is with malfunction or stop operation because of malfunction indoor unit will keep its original op eration status and display the malfunction 3 When 0 F lt setting temperature ambient temperature l
25. Is the stop duration of the TEN compressor longer than 3 minutes Yes Is the wiring of the compressor Reconnect wire properly properly connected Yes Is the malfunction corrected Is the electronic expansion valve Replace the Electronic expansion faulty valve Is the malfunction corrected Replace outdoor main board Yes Is the malfunction corrected Replace the compressor O End Troubleshooting 138 Troubleshooting Compressor Desynchronizing Malfunction cont The unit appears to be desynchronizing during operation Is the outdoor fan working No No properly Check fan terminal connections Replace the fan capacitor l Yes Is outdoor fan blade restricted o Remove restriction Replace fan motor Replace the AP1 board Is the malfunction corrected No Replace the compressor End Troubleshooting 159 C5 Error Code 140 C5 Status indoor unit Start Troubleshooting Is there a jumper cap on the No Install a matching controller jumper cap Yes Is the jumper cap inserted correctly Yes Replace the jumper cap Is system Yes operating properly No Replace the main control board End Troubleshooting Jumper Cap Malfunction Wireless remote will not send command to No jumper cap inserted on board Jumper cap not fully seated Jumper cap damaged Bad control board pepe Yes No Is system Yes operating prop
26. Line T Checking the 4 way valve in cooling mode requires the measurement of 4 readings First record the temperature of the compressor discharge tubing secondly record the temperature of the tubing go ing to the condenser There should be no more than a 10 degrees difference between the two readings The next set of readings will require recording the temperature of the tubing going to the suc tion line and the temperature of the tubing going to the accumulator Again if there should be less than 10 degrees difference between these readings A temperature reading higher than 10 degrees may indicate a leaky valve not fully shifter or a block age in the valve 4 Way valve solenoid resistance check Heating Mode v he Compressor IS n Discharge ET dd b uu F a a TM To Accumulator A uL NN i d zu A 1 To Condenser E s F J I Checking the 4 way valve in heating mode re quires the measurement of 4 readings First re cord the temperature of the compressor discharge tubing secondly record the temperature of the suction line tube There should be no more than a 10 degrees difference between the two readings The next set of readings will require recording the temperature of the tubing going to the condens er coil and the temperature of the tubing going to the accumulator Again if there should be less than 10 degrees diffe
27. Models NEO09HP230V1AS amp NEO12HP230V1AS Indicator has 3 kinds of display Malfunction Indicator Display during blink status and during blinking ON A C Status Possible Causes 0 5s and OFF 0 5s Operation Cool Heating Yalow nea Green Name ing ON 0 5s and OFF 0 5s Outdoor DC fan motor malfunction Power protec tion Indoor unit and outdoor unit doesn t match Failure start up Malfunction of phase cur rent detection circuit for compressor Malfunction of voltage dropping for DC bus bar and blink 23 times and blink 20 times and blink 19 times Off 3S and blink 11 times Off 3S and blink 13 times Off 3S and blink 20 times and blink and blink 16 times and blink 14 times Outdoor DC fan motor malfunction lead to compressor stop operation Compressor stop operation and Outdoor fan motor will stop 30s later 3 minutes later fan motor and compres sor will restart Compressor and Outdoor fan motor can t work During cooling and drying operation compressor will stop while indoor fan will operate During heating operation the com plete unit will stop operation During cooling and drying operation compressor will stop while indoor fan will operate During heating operation the com plete unit will stop operation During cooling and drying operation compressor will stop while indoor fan will operate Du
28. and OFF 0 5s and blink 23 times and blink 20 times and blink 19 times and blink 11 times and blink 13 times status and during blinking ON 0 5s and OFF 0 5s and blink 9 times and blink 16 times and blink 14 times A C Status Outdoor DC fan motor mal function lead to compressor stop operation Compressor stop operation and Outdoor fan mo tor will stop 30s later 3 minutes later fan motor and compressor will restart Compressor and Outdoor fan mo tor can t work During cooling and drying oper ation compressor will stop while indoor fan will operate During heating operation the complete unit will stop opera tion During cooling and drying oper ation compressor will stop while indoor fan will operate During heating operation the complete unit will stop opera tion Possible Causes DC fan motor malfunction or system blocked or the connector loosed To protect the electronic compo nents when detect high power Indoor unit and outdoor unit doesn t match Refer to the mal function analysis Replace outdoor control panel AP1 123 Models NEO30HP230V1AS amp NEO36HP230V1AS Indicator has 3 kinds of display Malfunction Indicator Display during blink Possibl Name ing ON 0 5s and OFF 0 5s ossible Causes A C Status status and during blinking ON 0 5s and OFF 0 5s Operation Cool Heating Yalow nea Green Malfun
29. blades can be kept in seven states position L position A position B position C position D swing between position L and D stop at one position from L to D When the unit is turned off the wind deflector will be closed up to position 0 Wind blow action is effective only when wind blow commands are set and the indoor unit is running Note When the wind blades are set at position L to B position A to C or position B to D through remote setting the wind deflector will swing between position L and D L A B C D 0 2 Buzzer When the controller is powered on signals from a remote controller are received or the auto button is pushed a buzzer will give out prompt tone 3 Auto button When the button is pushed the unit will operate in auto mode and the indoor fan will run in auto state When the indoor fan is running the wind blow motor will work When the button is pushed again the unit will be switched off At the same time as the button is pushed the whole unit will be powered on and enter into fast test mode when the unit is powered on and detects for continuous 20s such time shall not be fast tested that the auto button is pushed and if the unit is currently at fast test state the unit will quit the fast test state 4 Sleep function In this mode the unit will select the suitable sleep curve to run according to the different setting temperature 5 Timing function The main board integrates general timing and momen
30. cooling mode and heating mode Cooling mode Basing on the set temperature of remote controller after turning on the sleep function for a few hours set temperature will increase properly and automatically according to human body s comfort Heating mode Basing on the set temperature of remote controller after turning on the sleep function for a few hours set temperature will decrease properly and automatically according to human body s comfort 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 Cooling mode T ring T setting 3 6 F high speed T setting 3 6 F lt T ring lt T setting 3 6 F medium speed T rings T setting 3 6 F low speed Sending wind mode T ring T setting 7 2 F high speed T setting 3 6 F lt T ring lt T setting 7 2 F medium speed T ring lt T setting 3 6 F low speed Moisture removal mode force to be set as the low speed Heating mode T rings T setting 1 8 F high speed T setting 1 8 F lt T ring lt T setting 9 F medium speed T ring 2T setting 3 6 E low speed 29 Product Introduction pa Basic Functions 9K amp 12K 230 volt 7 Buzzer Control The buzzer will send a Di sound when the air conditioner is powered up or received the information sent by th
31. damage to the valve cause by high temperature Remove the screws attached to the liquid valve and unsolder the welding joint connecting the liquid valve to the Y type pipe to remove the liquid valve 182 Disassembly of Outdoor Unit 18K 240 volt unit Warning Wait 10 minutes after power is disconnected before starting disassembly Discharge the refrigerant completely unsolder the pipeline connecting the compressor and the con denser assembly and then remove the 4 way valve Remove the nuts on the compressor feet and then remove the compressor Remove the four tapping screws attached to the motor Pull out the lead wire and remove the motor Remove the two tapping screws attached to the mo tor support Lift motor support to remove it motor motor support 183 Disassembly of Outdoor Unit 24K 240 volt unit Warning Wait 10 minutes after power is disconnected before starting disassembly 1 Remove handle and valve cover Remove the screws used for attaching the handle pull the handle upward to remove it Loosen the screws attached to the valve cover and then remove it 2 Remove top cover top Gover Remove the connecting screws connecting the top cover plate with the front panel and the right side plate and then remove the top cover MAA T 2 Ui Cn me 3 Remove front grille Remove the screws connecting the front grille and front panel Remove the front grille 184 Disassembly
32. disassembly 8 Remove motor and motor support cont Remove the tapping screws attached to the motor 4 way valve support pull it upwards and then remove the mo tor support m Ca ura iuga lau i5 d E ER t d GR X 9 Remove isolation sheet Remove the screws connecting isolation sheet and end plate of condenser and chassis and then re move the isolation sheet 10 Remove 4 way valve ES Unsolder the pipe line between compressor con denser gas and liquid valve Then remove the 4 wa n p AS x mri uc TELI n if Gul Eck grep de t EUER oui r NCIL n x rs valve Note release all refrigerant before un solder ing Isolation sheet 187 Disassembly of Outdoor Unit 24K 240 volt unit Warning Wait 10 minutes after power is disconnected before starting disassembly 11 Remove gas and liquid valve Remove the 2 bolts holding the valve sub assy Unsolder joint between gas valve and return pipe then remove the gas line NOTE Discharge the refrigerant completely before un soldering When un soldering wrap the gas valve with a wet cloth completely to avoid damage to the valve cause by high temperature Remove the screws attached to dp E the liquid valve and unsolder the welding joint con QW CR uw NOUS pue necting the liquid valve to the Y type pipe to remove ES NE the liquid valve 12 Remove compressor Remove the three nuts on the compress
33. full weight of the unit 5 Try to limit expose to direct sunlight or strong winds 6 Make sure that the outdoor unit is installed in accor dance with the installations instructions and is conve nient for maintenance and repair 7 Referto your outdoor unit installation manual for maximum lineset lengths and heights This could bea factor in determining outdoor location Select a place where it is out of reach of children Install Heat Pump legs to allow for proper drainage Install drain fitting in bottom of outdoor unit 62 Mounting Plate Installation Indoor Wall pipe vA Installation Outdoor Seal Pad i ga t 92 The mounting plate should be installed horizontally and level Measure the center of the indoor unit Please note that depending on model the center of the bracket may not correspond with the center of the unit Attach the mounting plate on the wall with screws Be sure that the mounting plate has been attached firmly enough to withstand approximately 132 pounds Refer to specific models for dimensional data The piping can exit the indoor unit from either side see pictured below Drill a 2 1 2 diameter hole at a slightly downward angle to the outdoor side Note The outdoor hole should be approximately 1 4 lower than the indoor hole Insert the piping hole sleeve into the hole to prevent the piping and wiring from being damaged when pass ing through the hole
34. off the unit when the unit is in heating mode or switching heating mode to another mode the 4 way valve will be powered off after the compressor stops for 2min the compressor has already started in heating mode 5 If Toutdoor ambient gt 86 F the compressor will stop and the outdoor fan will stop with a time lag of 30s 6 When the compressor has started if switching cooling or dry mode to heating mode the 4 way valve will be energized with a time lag of 2 3min Note Tcompensatory is determined by indoor unit and outdoor unit If the indoor unit controls Tcompensatory Tcompensatory is determined by the data sent by indoor unit to outdoor unit if the indoor unit doesnt control Tcompensatory the outdoor unit will control Tcompensatory and the default data is 5 4 F there is instruction in the communication protocol to describe if the Tcompensatory is controlled by indoor unit 2 Condition and process of defrost 1 When Toutdoor ambient lt 41 F and the compressor has run for 3h if Toutdoor tube lt 0 F is continuously detected for 1min the unit will enter defrosting Note the accumulated time is cleared if one of the below condition is met Toutdoor ambient gt 41 F the compressor starts up after switching to cooling or dry mode when defrosting is finished for other situations besides above conditions the accumulated time will not be cleared including the unit stops when reaching the temperature point the unit stops for protection swit
35. operates in heating mode The defaulted set temperature is 68 F if its the cooling only unit that operates in fan mode the defaulted set temperature is 77 F c When 73 F lt Tamb x77 Rif the unit is turned on for the first time it will operate in auto fan mode if the unit switched to auto mode from other mode it will keep previous operation mode if the unit is switched to auto mode from dry mode it will operates in fan mode d When the unit operates in auto mode frequency of compressor during cooling and heating is same as that in cooling mode and heating mode respectively Protection function a It s the same as that in cooling mode when it operates in cooling b Its the same as that in heating ode when it operates in heating mode Tpreset S8 F Keep current operation mode lade for cooling only unit In cooling mode Tpreset 77 F DF ie 7o F 3 Other Control 1 Timer Function General timer and clock timer functions are compatible by equipping remote controller with different functions 1 General Timer Timer ON can be set at unit OFF If selected ON time is reached the unit will start to operate according to pre vious setting status Time setting range is 0 5 24hr in 30 minute increments Timer OFF can be set at unit ON If selected OFF time is reached the unit will stop operation Time setting range is 0 5 24hr in 30 minute increments 20 pa Basic Functions 9K amp 12K 115 volt 2 Clock Timer its
36. optional for the remote controller with clock timer Timer ON If timer ON is set during operation of the unit the unit will continue to operate If timer ON is set at unit OFF upon ON time reaches the unit will start to operate according to previous setting status Timer OFF If timer OFF is set at unit OFF the system will keep standby status If timer OFF is set at unit ON upon OFF time reaches the unit will stop operation Timer Change Although timer has been set the unit still can be turned on off by pressing ON OFF button of the remote controller You can also set the timer once again and then the unit will operate according to the last setting If timer ON and timer OFF are set at the same time during operation of the unit the unit will keep operating at cur rent status till OFF time reaches If timer ON and timer OFF are set at the same time at unit OFF the unit will keep off status till ON time reaches Each day in future the system will operate according to preset mode till OFF time reaches and stop operation till ON time reaches If ON time and OFF time are the same OFF command takes the priority time and OFF time are the same OFF command takes the priority 2 Auto Button If this button is pressed the unit will operate in AUTO mode and indoor fan will operate at auto speed meanwhile the swing motor operates Press this button again to turn off the unit 3 Buzzer Upon energization or availably operating the unit o
37. outdoor unit valves On new installations open all liquid and vapor service valves 9010A 65s scie 61 stallion Proper installation site is vital for correct and efficient operation of the unit Avoid the following sites where e Strong heat sources vapors flammable gas or volatile liquids are emitted e High frequency electro magnetic waves are generated by radio equipment welders and medical equipment e The air is contaminated with industrial vapors and oils e The air contains sulfurous gas such as in hot spring zones e Poor air quality exists E IndoorUnit The air inlet and outlet should be away from any obstruc tions Ensure the air will easily circulate through the entire 7 room 1 Select a site where the condensate can be easily routed or consider a condensate removal pump 2 Select a place where it is out of reach of children 3 Select a place that has adequate mounting structure strong enough to withstand the full weight and vibra tion of the unit 4 Be sure to leave enough space to allow access for routine maintenance Refer to unit installation specifi cations for clearances Select a place more than 3 feet away from any TV or other electrical appliances 1 Selecta suitable site where proper drainage will occur 2 Select a site where there is sufficient ventilation 3 Selecta site where there is no obstruction blocking the inlet and outlet 4 The site should be able to withstand the
38. runs Heating operation complete unit stops Outdoor Mid Coil condenser temperature sensor is open or short circuited Status Cooling operation compressor stops while indoor fans runs Heating operation complete unit stops Outdoor discharge temperature sensor is open or short circuited Status Cooling operation compressor stops after 3 minutes while indoor fans runs Heating operation complete unit stops after operating for 3 minutes oe p DI PA FOR p m Possible Causes Loose or bad contact of indoor temperature sensor Sensor wire leads not properly connected Faulty sensor check readings with charts Main circuit board defective Loose or bad contact of indoor temperature sensor Sensor wire leads not properly connected Faulty sensor check readings with charts Main circuit board defective Loose or bad contact of outdoor temperature sensor Sensor wire leads not properly connected Faulty sensor check readings with charts Main circuit board defective Loose or bad contact of outdoor temperature sensor Sensor wire leads not properly connected Faulty sensor check readings with charts Main circuit board defective Loose or bad contact of outdoor temperature sensor head of sensor should be inserted into the copper tubing Sensor wire leads not properly connected Faulty sensor check readings with charts Main circuit board defective 149 Temperature Sensor Troubleshooting Sta
39. simple swing 7 Clock Button Press this button to set clock Press or within 5 seconds to change time Holding buttons down for more than 2 seconds will speed up time Press Clock again to save setting 8 Timer On Press this button to initiate the Auto On timer Press this button again ti disable the function Within 5 seconds press the or buttons to adjust the time value Holding down the buttons will change time at a faster pace 9 X Fan Pressing X Fan button in Cool mode will allow indoor fan to run for 10 minutes after the cooling cycle has stopped This will dry off indoor coil 10 Temp Button This button will change the indoor display from reading indoor ambient or the indoor set temperature 11 Timer Off Button This button performs same as Timer On button 93 Product Introduction Remote Controller Functions 12 Turbo Button Press this button to enable the Turbo function This will increase the fan speed to achieve room set temperature in the shortest amount of time 13 Sleep Button Sets sleep mode function see owners manual for specific model information 14 Light Button Press this button to turn on or off the display light Display Icons 15 Mode Icon Indicates current mode of unit 16 Lock Icon Indicates if control is locked 17 Light Icon Indicates lights is on 18 Sleep Icon Indicates if sleep mode is on 19 Temp Icon Indicates if display is indicating indoo
40. speed or turbo according to the change of ambient temperature 3 In auto heating mode or normal heating mode the auto fan speed operates according to below mode When Tamb Tpreset 1 8 F indoor fan operates at high speed When Tpreset 1 8 F lt Tamb lt Tpreset 1 8 F indoor fan operates at medium speed When Tamb gt Tpreset 1 8 F indoor fan operates at low speed Control drawing of auto fan in heating mode Tpreset 18 F Tpreset 1 8 F Fan speed 2 Fan mode cooling mode In auto cooling mode or normal cooling mode auto fan speed operates according to below mode Tpresett3 e F T preset Fan speed 3 Auto fan speed is not available in drying mode Note high speed medium speed and low speed is to notch 55 notch 3 and notch 1 respectively As for the switchover among high speed medium speed and low speed the unit should operates at every speed for 3minutes and 3s at least pa Basic Functions 9K amp 12K 115 volt 8 Up and Down Swing Function After turning on the unit the louver will operate in the below angel if the remote controller is pressed continuously within 2 seconds the last signal will be executed the previous signals will be invalid After energizing the up and down swing motor will firstly rotate the louver to position 0 anticlockwise close in 138 and close the air outlet After turning on the unit if swing function has been set the louver will rotate to posit
41. stop machine If TCooling overloadfrequency reducing temperature at high speed lt Touter pipe TCooling overload power turn off temperature you should adjust the compressor frequency by reducing 30Hz 90s till the lower limit After it was running 90s at the lower limit if TCooling overload frequency reducing temperature at normal speed lt Touter pipe then Cooling overload protects machine stopping 5 Power turn off If the cT Cooling overload power turn off temperature x Touter pipe then Cooling overload protects machine stopping If Touter pipe T Cooling overload frequency limited temperature and the compressor has been stopped working for 3 minutes the machine should be allowed to operate 6 If the Cooling overload protection power turn off continuously occurs for six times it should not be resumed automatically and you should press the ON OFF button to resume if the fault keeps on During the process of running if the running time of compressor exceeds the toverload protection times zero clearing time the times of overload protection power turn off should be cleared to recount Ihe mode of stopping the machine or transferring to supply air will clear the trouble times immediately if the trouble cannot be resumed transferring mode will not clear it Overload protection function at the mode of heating Starting estimation After the compressor stopped working for 180s if Tinner pipe lt Theatingoverload frequency limited te
42. the tProtection times clearing of overurrent the discharge protection is cleared to recount 6 Voltage sag protection After start the compressor if the time of DC link Voltage sag USagging protection voltage is measured to be less than tVoltage sag protection time the machine should be stop at once hand on the voltage sag trouble reboot automatically after 30 minutes 7 Communication fault When you have not received any correct signal from the inner machine in three minutes the machine will stop for communication fault When you have not received any correct signal from driver IC aim to the controller for the separating of main control IC and driver IC and the machine will stop for communication fault If the communication is resumed the machine will be allowed to operate 43 Product Introduction Basic Functions 18K amp 24K 230 volt 8 Module protection Testing the module protective signal immediately after started once the module protective signal is measured stop the machine with module protection immediately If the module protection is resumed the machine will be allowed to operate If the module protection continuously occurs for three times it should not be resumed automatically and you should press the ON OFF button to resume If the running time of compressor exceeds the tProtection times clearing of module the module protection is cleared to recount 9 Module overheating protection 1 Starting es
43. the indoor fan will turn to run in set fan speed In 1 minute of low fan speed or in 2 minute that the indoor fan doesnt run if Ttube gt 108 F the indoor fan will turn to run in set fan speed 2 When Tindoor ambient275 F if Ttubex108 F the indoor fan runs in low fan speed and then the indoor fan runs in set fan speed after 1min In 1min of running in low fan speed if Ttube gt 108 F the indoor fan will turn to run in set fan speed Note Tindoor ambient in 1 and 2 means at the beginning of heating mode the indoor ambient temperature before starting up the compressor or after quitting defrosting the indoor ambient temperature before clearing the defrosting symbol 4 Fan Mode In fan mode indoor fan operates at set fan speed while compressor and outdoor fan all stop operation In fan mode the temperature setting range is 61 86 F Display is displaying operation icon and set temperature 5 Auto Mode In auto mode the system will select the operation mode cooling hearing of fan mode according to the change of ambi ent temperature automatically The display displays operation icon actual operation mode and set temperature 30s will be delayed for protection during mode switchover Protection function is the same as that in other modes Ihe selection method for auto operation mode in details is as below a When Tamb gt 79 F the unit operates in cooling mode The defaulted set temperature is 77 F b When Tamb lt 72 F the unit
44. timer setting which has not been fulfilled before power failure will memorize the timer setting and re calculate the time after power recovery If there is timer function in the last remote control ler command but setting time has reached the system will act as timer on off setting before power failure After power failure the system memorizes the operation states before power failure without timer action Clock timer can not be memorized 10 Memory Function Memorized items mode up amp down swing light set temperature and set fan speed When power is recovered after power failure the unit will automatically start operation according to memorized status After power recovery the unit without timer setting before power failure will operate according to the last setting the unit with general timer setting which has not been fulfilled before power failure will memorize the timer setting and re calcu late the time after power recovery If there is timer function in the last remote controller command but setting time has reached the system will act as timer on off setting before power failure After power failure the system memorizes the operation states before power failure without timer action Clock timer can not be memorized 23 pa Basic Functions 9K amp 12K 115 volt 24 11 I FEEL Function reserved When I FEEL command is received and controller has received the ambient temperature sent by remote controller the controller
45. tion High tempera ture resistant protection EEPROM malfunction Limit decrease frequency due to high temperature of module Malfunction protection of jumper cap Gathering refrigerant Off 3S and blink 6 times Off 3S and blink 8 times Off 3S and blink 15 times Off 3S and blink and blink 1 times 1 times and blink Off 3S and blink 15 and blink times 6 times blink 6 times blink 17 During cooling operation compressor stops while indoor fan motor operates During heating operation the complete unit stops During cooling operation compressor stops while indoor fan motor operates During heating operation the complete unit stops During cooling operation compressor stops while indoor fan motor operates During heating operation the complete unit stops All load operate normally while operation frequency for compressor is decreased Wireless remote receiver and button are effective but can not dispose the related command When the outdoor unit receives signal of gather ing refrigerant the system will be forced to Refer to the malfunc tion analysis Refer to the malfunc tion analysis Replace outdoor control panel AP1 Discharging after the complete unit is de energized for 20 mins check on wheth er the thermal grease on IPM Module of outdoor control panel AP1 is sufficient and whether the radiator is inserted tightly
46. to operate 6 If the discharging temperature protection of compressor continuously occurs for six times it should not be resumed automatically and you should press the ON OFF button to resume During the process of running if the running time of compressor exceeds the tProtection times clearing of discharge the discharge protection is cleared to recount Stopped or transferred to supply air mode will clear the trouble times immediately if the trouble cannot be resumed mode transferring also will not clear it 7 Frequency limited If ILimited frequency when overcurrent lt IAC Electric current lt Ifrequency reducing when overcurrent you should limit the frequency raising of compressor 8 Reducing frequency If IFrequency reducing when overcurrent lt IAC Electric current IPower turn off when overcurrent you should reduce the compressor frequency till the lower limit or exit the frequency reducing condition 9 Power turn off If Power turn off machine when overcurrent lt IAC Electric current you should carry out the over current stopping protection If IAC Electric current lt TLimited frequency when overcurrent and the compressor has been stopped for 3 minutes the machine should be allowed to operate 10 If the overcurrent protection continuously occurs for six times it should not be resumed automatically and you should press the ON OFF button to resume During the process of running if the running time of compressor exceeds
47. two people when the weight exceeds the capacity for one person Never touch the heat exchanger fins with bare hands sharp edges could cause personal injury Never touch the compressor or refrigerant tubing without proper hand protection Do not operate th unit without the air filters in place Should any emergency occur stop the unit and disconnect the electrical supply Properly insulate tubing running inside the room to prevent water damage from condensation A Warning All installation or repair work shall be performed by your dealer or a specialized subcontractor as there is the risk of fire electric shock explosion or injury A Warning Pressurized Refrigerant Personal injury could result in failure to follow this warning Systems contain oil and refrigerant under high pressure proper refrigerant handling techniques should be completed by a qualified technician y Warning Live Electrical Components Personal injury property damage or death could result in failure to follow this warning Follow all electrical precautions when servicing this system it may be necessary to service or troubleshoot with live electrical circuits All work should be completed by a qualified technician Product Catalog Number Nomenclature Example NEO24HP230V1AH NEO 24 HP 230V I A H 5 System O Outdoor H Indoor High Wall D Indoor Duct C Indoor Cassette F Indoor Floor Ceiling RIO NEO TERRA Revision Level
48. when total current Itotal28A the unit operates by decreasing frequency When total current Itotal29A the compressor stops operation and indoor fan will stop operation after 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 61 86 F 5 AUTO Mode 1 Working conditions and process of AUTO mode a When T ambient 78 8 F the unit will operate in Cool mode The set temperature is 77 F b When T ambient lt 71 6 F the heat pump unit will operate in Heat mode set temperature be 68 F the cooling only unit will operate in Fan mode set temperature be 77 F c When 73 4 F lt T ambient lt 77 F the unit will operate in the previous state If it is energized for the first time it will operate in Fan mode d Under auto mode if its cooling mode operation frequency is same as that under cooling mode if its heating mode operation frequency is same as that under heating mode 2 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 H
49. wires and proper positioning of wires Indoor receiver defective Check for defective breaker poor wire connections Breaker is warm to touch 129 Inadequate Cooling or Heating Incorrect temperature setting Adjust temperature setting Clean outdoor coil 2 Check for adequate airflow around unit Indoor air filter blocked Clean indoor filters Low Fan Speed Set fan speed to high 1 Check fan capacitor 2 Check fan blade 3 Check for damaged Outdoor unit coil blockage Insufficient airflow Low indoor air movement motor nona Ensure that both linesets and fittings are insulated Cooling or Poor insulation on linesets well both large and small Heating Check system for leaks E Refrigerant circuit has following procedure Insufficient refrigerant flow a a leak explained in the Charging section of this manual Leak between valves inside Replace compressor compressor Internal leaking of 4 way Replace 4 way valve valve Observe the temperature o refrigerant lines for proper flow Blockage of refrigerant flow Outdoor temperature too high Check for proper outdoor unit location check for proper sizing of unit capacity Check for leakage around windows doors Excessive indoor heating loss poor insulation Calculate heat loss and check for proper sizing Check for leakage around windows doors a l poor insulation internal load such a
50. working When the system is at stop state and both timing start and stop are set the system will keep at stop state When preset timing start time is reached the system will start operation From then on the system will operate in preset mode at a preset start time and stop at a preset stop time every day If timing stop time is set as the same as timing start time a stop command will be executed 6 Dry and mildew proof function Dry and mildew proof function can be set in cooling and dehumidification modes 7 Control of indoor fan Indoor fan can be set at four levels super high high middle and low with a remote controller When one level is set the fan will thus operate at such level The fan can also be set at auto state 8 Power failure memory function What will be memorized includes modes up and down wind blow light preset temperature preset wind speed general timing no Memory for moment timing and Fahrenheit Celsius degree When the unit is powered on again after power failure operation continues according to memorized content If timing is not set by the last remote control command the system will memorize the last remote control command and operate in the mode specified in the last remote control command If timing is set by the last remote control command and power failure happens before the preset time the system as powered on again will memorize the timing function set by the last remote control command Timi
51. 1 times and blink 7 times Off 3S and blink 6 times status and during blinking ON Off 1S Indicator has 3 kinds of display 0 5s and OFF 0 5s and blink 4 times Off 1S and blink 10 times Off 3S and blink 14 times A C Status During cooling and drying oper ation compressor will stop while indoor fan will operate During heating operation the complete unit will stop opera tion Internal fan mo tor external fan motor compressor and electric heater stop operation guide louver stops at present location During cooling and drying oper ation compressor will stop while indoor fan will operate During heating operation the complete unit will stop opera tion During cooling and drying oper ation compressor will stop while indoor fan will operate During heating operation the complete unit will stop opera tion Possible Causes Refer to the mal function analysis IPM protection loss of synchro nism protection and overcurrent protection of phase current for compressor 1 Bad contact of DC motor feed back terminal 2 Bad contact of DC motor control end 3 Fan motor is stalling 4 Motor malfunction 5 Malfunction of mainboard rev detecting circuit Refer to the mal function analysis IPM protection loss of synchro nism protection and overcurrent protection of phase current for compressor Refer to the mal function analysis
52. 2 emos 66 1508 9827 as s90 7735 67 1526 9489 a7 626 705 69 i562 8854 18 644 6734 70 1580 8555 9 f 2 6433 71 i598 8268 20 so 6148 72 i616 7991 21 feos 5877 73 i634 7726 22 716 5619 74 1652 747 NN ME 16 feos 17583 68 1544 9165 120 2480 r912 NE un EM LS E 210 Gree Electric Appliances Inc C 2014 Cat No DFS NEO HP 2SM 211
53. 5 oz 0 5 oz ft Max Length without Additional Charge ze fie pom foe Factory Charge Char Factory Charge INT OZ 5602 OZ 8o 7 OZ 91702 7 OZ Max Total Piping me CNN RUN ose ar 59 Refrigerant Charging Procedure Follow the procedures for leak testing with nitrogen prior to adding charge on a new installation or existing one suspected for leaks See preceding page 5 16 x 1 4 adapter may be required to connect hose to port Check to insure that the liquid and gas valves are closed on the unit Close all valves on your gauge set then connect the vacuum pump to your gauge set Pump down lineset and indoor unit Place the refrigerant tank on the charging scale Open the tank valve turn on the scale then zero the scale 60 Refrigerant Charging Procedure cont Charging should be completed with the unit off not running and through the liquid side with liquid refrigerant If there are no ports on the liquid side use the gas side port connection charging with liquid Record the amount of additional charge for future reference If the scale was zeroed with the refrigerant tank on the scale the amount added to the system will be a negative amount since it was removed from the tank After the proper amount of refrigerant has been weighed in close the manifold valve Close the tank valve then carefully remove the hose and adapter Replace the charging port cap back on the
54. 7 986 2954 fss 192 la jos 3428 38 1004 2836 oo 13 86 3239 39 102 2723 12 104 3062 40 1040 2615 u 122 2896 fa i058 2511 10 piso 1274 2 1076 2413 9 Jiss 12593 43 i094 23 19 8 i726 2456 fa ima 2229 f L7 194 12326 45 u30 2143 6 212 12205 46 mas 206 5 230 209 j 47 166 198 a 248 11983 fas isa 1906 3 266 191 49 1202 1834 2 284 785 50 120 1765 3 129 a 302 1695 51 38 1699 3 04 o 320 fis 52 156 1636 fioa 2192 2955 a fs fiss 53 174 fiss fios 2210 2872 2 356 fusa 54 92 1517 fios 2228 2792 3 374 11383 55 1310 162 107 2246 2715 a s2 jiis fse 138 109 fios 2264 264 4 609 4 469 4 334 4 204 4 079 3 958 3 841 3 728 3 619 98 2084 3 514 99 2102 3 413 3 315 3 22 NM 09 Appendix 3 Resistance Table of Outdoor Discharge Temperature Sensor 50K Temp Temp Temp Temp Temp Temp C Dp C F C F 5 Jao 251 57 146 1558 109 2282 2568 6 428 fusi 58 1364 1309 110 2300 2498 z 446 pisa 59 1382 162 mi 2318 2431 s 464 fios feo 1400 1217 m2 2336 2365 9 482 1028 fe i418 fiza m3 2354 2302 ao so0 fo 6 i436 1132 i sts 9542 63 i454 1093 a2 536 8907 64 1472 1054 a3 s54 8495 65 1490 1018 ia s7
55. 7 Discharge Note Please refer to actual model for exact piping arrangement refrigeration components may vary O Temperature S z Sensor Accumulator not 5 on all sizes a o O Do O ee A Es E dd Ss ld ee O o l l Note The manufacturer reserves the right to modify the design and or change the specifications without notice Please refer to specific installation manual for current information 12 Product Introduction E Cooling Mode A Hot gas is discharged from the compressor The temperature of the gas is monitored by the Discharge Temperature sensor and sent to the outdoor control panel B The hot gas is directed through the 4 way valve then enters the outdoor coil The hot gas will be slightly subcooled however there are no pressure ports to take measurements C The subcooled liquid will enter the filter to remove contaminates D The subcooled liquid will enter the Electronic Expansion Valve EEV and will regulate to about a 10 degree superheat level The EEV will adjust its flow based upon the temperature sensor readings The adjustment process and compressor speed are controlled by the outdoor circuit board E The refrigerant leaving the EEV will be in a low pressure temperature saturated state This cold saturated refrigerant will move through the coil absorbing heat This liquid will flash to a vapor and will be superheated to abo
56. 8 102 1 658 96 10 140 i103 42 1076 9803 1 609 9 158 046 fas 1094 942 1 561 L8 piro 9913 44 ima 904 1 515 L7 oa f fas uso j8s70 147 6 212 8917 46 i148 837 fos 2084 1427 5 230 846 47 i166 8051 99 2102 1 386 a 248 8031 fas i184 7745 1 346 3 266 624 a9 102 7453 a 24 za 50 1220 7173 1 302 6879 51 138 6905 o 320 6537 52 125 6 6648 a jss8 6213 53 1274 6403 2 356 5908 54 1292 6167 a para 5619 55 i310 5 942 a s92 5346 56 i328 45 726 5 fao s087 57 1346 559 6 428 4842 58 i364 532 7 46 feu 59 1382 513 s 44 14392 feo 1400 4948 9 482 farsa fe i418 4773 1 307 1 269 1 233 1 198 1 164 1 131 1 099 1 069 1 039 1 01 0 983 0 956 0 93 207 Appendix 2 Resistance Table of Outdoor and Indoor Tube Temperature Sensors 20K Temp Temp Temp Temp Temp Temp C F C F C F 10 so0 3987 62 1436 asos fia 2372 0904 ji sts fasori 63 1454 asas fus 2390 oss a2 s36 3624 f a 1472 4289 m 2408 0 856 13 554 3457 fes 190 fam 17 242 6 0835 as 572 3298 fes isos 3998 fis 2444 osi a5 590 3147 67 i526 3861 0 77 16 0s 3008 fes 1544 3729 0 769 a7 626 2868 69 1562 3 603 0 746 as esa 2739 70 1580 348i 0
57. Board A 13 A ee WH White COMP Compressor AO YE po Yellow cm2 Ovelad O Violet BU Bhe 5 537 BK Bak Jo AN WARNING OVERLOAD PROTECTOR Please don t touch any terminal when a E EE EE an SAT ex 65 A A A the voltage of terminal P DCG and LL t uf zt i T G COMP a BH Bo Bo ga COMP N DC at API is higher than 30V to ra ra Ce xQ oss N Sm 50 54 TE MAGNETIC M YEGN prevent the risk of electrical shock C E Se Se e PING d d WH WH Ene ffL2 EL RTA RTI RT2Y RTS BU YE RD E X1 TERMINAL pa BLOCK MAGNET IC Ele Es BU YE RO RING EF BU L1 Bs BN a NM L1 gt AA BY YEGN A INDC NDC YN MAGNETIC a j L3 VT WT ins YEGN A OG EKV Mo P L REACTOR YEGN Il G call expansion FAN MOTOR 6363344601 Away valve H G VALVE OPTIONAL amp a 7 rra Electronic Circuit diagrams are subject to change without notice please refer to the one supplied with the unit QUEM Schematics NEO24HP230V1AH 230v Indoor Board A W _ Wie COMP Compressor A YE pp Yellow cm2 Oved O O Rd a way ale PO Be O Jo BK Black o WARN ING Please don t touch any electronic component TUBE TEMP ROOM TEMP or terminal when the machine is running SENSOR SENSOR stopping or has been powered ott for less than 3 minutes to prevent electric shock p P 28 el MAGNETIC DTI RING CONNECT IN
58. EAT DRY and AUTO Modes 1 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 tubex125 6 F the unit will return to its original operation state b If T tube 131 F frequency rise is not allowed c If T tube2136 4 F the compressor will run at reduced frequency d If T tube2143 6 F the compressor will stop and the indoor fan will run at preset speed 2 Heating overload a If T tube lt 122 F the unit will return to its original operation state b If T tube2127 4 F frequency rise is not allowed c If T tube2132 8 F the compressor will run at reduced frequency d If T tube2140 F the compressor will stop and the indoor fan will blow residue heat and then stop 2 Exhaust temperature protection of compressor If exhaust temperature 2208 4 F frequency is not allowed to rise If exhaust temperature 2217 4 F the compressor will run at reduced frequency If exhaust temperature gt 230 E the compressor will stop If exhaust temperature lt 194 F 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
59. G AT CABLE gt LN i e BEES PRINTED CIRCUIT BOARD JUMP B TERMINAL BLOCK YEGN DISP DISP SWwING UD DC MOTOR TEGN aQ oo ea EVAPORATOR ELECTRIC 3ox OUTDOOR UNIT url E LN y EVER A WAN SWING FAN MOTOR RECEIVER AND DISPLAY BOARD MOTOR 530324 id Circuit diagrams are subject to change without notice please refer to the one supplied with the unit 74 QUEEN Schematics NEO24HP230V1AO 230v Outdoor Board Symbol Color Symbol Symbol Color Symbol ll Ong GO EathGrund o WH White COMP OG WH YE RD BN BU BK BN Brown VIT Vide BU Be po SS OBK ac JJ LLL AWARNING zo gm og og X2 ODER Please don t touch any terminalwhen 53 13335 ATA SAT COMP the voltage of terminal P DC and pe ES Ta z a U eona E YEGN N DC atAP1 is higher than 30V to 2 2m am 35 VEW revent the risk of electrical shock P WEENEICY YY i p m mu mi era wl u m EELER 8 A eA q e BU YE RO C A A o WH WH BK BU YE RD TERMINAL BLOCK INDC1 INDC2 y lt 4 YEGN EKV C MIN q WH 06 T E bos o r OAP A2 ce neon L p me BSE Ciega WUE OPTIONAL Circuit diagrams are subject to change without notice please refer to the one supplied with the unit 75 NEO30HP230V1AH 230v Electrical Schematics Indoor Board Symbol Color Symbol Symbol Color Symbol OG o Onng Earth Ground WH White COMP Comprsor
60. Indoor Ib 22 20 2 88 NeUGross Weight Outdoor lb 79 90 BI Condenser Coil Type GoldFin Coated Line Set Size Lig Suction 1 4 318 1 4 318 Max Total Piping Length Feet 50 MCA of Wires per Local Code Wire Size and of Conduc tors from Indoor to Outdoor 14awg 4c unit Note The manufacturer reserves the right to modify the design and or change the specifications without notice Please refer to specific installation manual for current information Physical amp Electrical Data cont Model NEO18HP230V1AS NEO24HP230V1AS Power Supply 208230v 60Hz 208 230V 60Hz System Performance System Specifications Compressor Type DC Inverter driven Twin Rotary Sound Level db 56 4 4 ss Z NeUGross Weight Indoor Ib 29 38 35 48 NeUGross Weight Outdoor Ib 99 1100 132 140 Condenser Coil Type GoldFin Coated Line Set Size Lig Suction 1147 1 2 1 4 518 MCA of Wires per Local Code Wire Size and of Conduc tors from Indoor to Outdoor 14awg 4c unit Note The manufacturer reserves the right to modify the design and or change the specifications without notice Please refer to specific installation manual for current information Physical amp Electrical Data cont Model NEO30HP230V1AS NEO36HP230V1AS Power Supply
61. OMP C E HPP OVC COMP CN ACL OFAN CNI uM CX NTHEA nm av ACL DEA 2 ZN d V E Y y Y Voy Y dd i HMM we oo EHF EHH EN E E ic EE E M e M HEATER j HEATER ER i ad gw COMP CHASSIS EU E ul c FAN MOTOR E A A es ee ee es ee eee o a a y Circuit diagrams are subject to change without notice please refer to the one supplied with the unit 71 QUEM Schematics NEOISHP230VIAH 230v Indoor Board Symbol Color Symbol Symbol Color Symbol OG Orange C J EathGrund WH White COMP Compressor A YE Yellow CTI2 Ovelad O ORD Reg y 4WayVawe O YEGN Yellow Green XT Terminal Block O BN Bown VT Villt O BU Be Lo BK Bk Jo fo TUBE ROOM TEMP SENSOR TEMP SENSOR FAN MOTOR oj M RT PTI T Cz CA ES 8 TERMINAL TERMINAL TUBE JUMP ACL DISP DISP d niin YEGNGN EE GAP COM OUT YEGNIGN cs L RECEIVER AND SHING COOL PLASMA DISPLAY BOARD MOTOR GENERATOR NOTE The parts with broken line is applicable Ge Ge EVAPORATOR ELECTRICBOX to the models with COOL PLASMA GENERATOR Circuit diagrams are subject to change without notice please refer to the one supplied with the unit 72 NEO18HP230V1AO 230v Outdoor
62. Outdoor Unit 36K 240 volt unit shown other models may vary slightly Warning Wait 10 minutes after power is disconnected before starting disassembly 1 Remove top cover and front side plate Use the screwdriver to remove the screws connecting the top panel and side panels Remove the top panel Loosen the screws attached to the valve cover and then remove the valve cover valve cover Loosen the screws connecting the front side panel mask and chassis Remove the front side panel 2 Remove grille Remove the screws connecting the grille and panel and then remove the grille grille 198 Disassembly of Outdoor Unit 36K 240 volt unit shown other models may vary slightly Warning Wait 10 minutes after power is disconnected before starting disassembly 3 Remove panel Remove the screws connecting the panel chassis and motor support with a screwdriver and then remove the panel 4 Remove guard grille Remove the screws connected to the guard grille and then remove the guard grille 5 Remove handle EE S pail i Remove the screws connected to the handle and then remove the handle 1E ER ee ee RUE ECRURVR A T 199 Disassembly of Outdoor Unit 36K 240 volt unit shown other models may vary slightly Warning Wait 10 minutes after power is disconnected before starting disassembly 6 Remove right side plate Remove the screws connecting the right side plat
63. Qi and blink stop running times Fan motor works Heating all will stop PFC protec tion OFF 3S and blink 6 times OFF 3S and blink 7 times OFF 3S and blink 10 times OFF 3S and blink 11 times an Compressor a N lose steps Heating an ti high temp declines Startups fail ES Compres OFF 3S and blink 13 times sor current E testing circuit malfunction OFF 3S and blink 15 times OFF 3S and blink 17 times EEPROM malfunction tri tm Capacitor d E charge mal function 112 Models NEO18HP230V1AS amp NEO24HP230V1AS Malfunction Name Module sensor circuit diagram Module temp over high Indoor Unit Displaying Method a Indicator Display during blink ing ON 0 5s and OFF 0 5s Running LED Cooling LED Outdoor Unit Display LED Indicator has 3 kinds of display status and during blinking ON 0 5s and OFF 0 5s D42 D16 D43 D30 A C Status Heating LED OFF 3S and blink 18 times OFF 3S and blink D40 D5 D41 D6 Malfunctions protection 19 times OFF 3S and blink 20 times DC Bus volt age dips E OFF 3S and blink 21 times Low DC Bus voltage pro d E tection IPM temp is too high tri E E O A D j limit decrease frequency Four way E valve abnor mal Outdoor unit zero cross de tecting error All loads work nor mally but Anti freezing es a
64. TUBE TEM SENSOR TEM SENSOR DISP DISP2 ACN COM OUT AC SWING UD TR OUT TR N EVAPORATOR zc Yoo o ee ea xe Circuit diagrams are subject to change without notice please refer to the one supplied with the unit 78 NEO36HP230V1AO 230v Outdoor Board Symbol OG Omg GO EathGrud YEGN o B Bhe E Jo Lo BK Bk o o Terminal Board wig Wi7 wi amp Wig EN YE BU WE FS t LF Way vave 4 Way Valve High Pressure Switch High Pressure Switch Comp Overload Pipe Temp Sensor LER Environment p U vel Ro ia Discharge Gas de ee i A Temp Sensor Ji COMP YEGN A LLL jf NI ah G E AP1 M m M 4YV HPI HP2 c GJ POWER SAT 20K 15K Circuit diagrams are subject to change without notice please refer to the one supplied with the unit 79 Printed Circuit Boards AP 1 Circuit Board gt y Pa IAE TANGO EN 4093 1098 819 2098 2099 USE ELLY Y D vp rn gt Compressor Heater Band Thermistor wires 80 Troubleshooting Indoor Components To check the condition of the indoor fan motor voltage measurements and resistance measurements can be compared to the following charts Care must be taken when checking voltage measurements all wires and terminals must be isolated for safety Resistance measurements must be taken with power off and PG
65. analysis Overcurrent compressor will protection of Off 3S stop while indoor phase current and blink fan will operate for compres 15 times During heating sor operation the complete unit will stop operation During cooling and Refer to the part drying operation three charging mal compressor will function analysis of Off 3S and blink 17 times Charging stop while indoor capacitor malfunction fan will operate of capacitor During heating operation the complete unit will stop operation During cooling and Replace outdoor drying operation control panel AP1 compressor will Malfunction Off 3S and blink 18 times stop while indoor of module fan will operate temperature During heating sensor circuit operation the complete unit will E stop operation 100 Models NEO09HP230V1AS amp NEO12HP230V1AS Malfunction Name Module high temperature protection Decrease fre quency due to high tempera ture resistant during heat ing operation Static dedust ing protection Overload protection of compressor System is abnormal Indicator has 3 kinds of display Indicator Display during blink ing ON 0 5s and OFF 0 5s Off 3S and blink 19 times and blink 10 times and blink 2 times status and during blinking ON 0 5s and OFF 0 5s A C Status During cooling and drying operation compressor will stop while indoor fan
66. ange 2 If the AC input is too low 12 times operation is normal measure the the complete voltage of electrolytic unit will stop capacitor C on control operation panel AP1 if its normal theres malfunction for the circuit please replace the control panel AP1 Compres sor Min frequency in test state Compres sor rated frequency in test state blinking in cool mode ON 0 25s and OFF 0 25s blinking in cool mode ON 0 25s and OFF 0 25s blinking in heat mode ON 0 25s and OFF 0 25s blinking in heat mode ON 0 25s and OFF 0 25s Showing during min cooling or min heating test Showing during nominal cooling or nominal heat ing test 99 Models NEO09HP230V1AS amp NEO12HP230V1AS Malfunction Name Compressor maximum frequency in test state Compressor intermediate Indicator has 3 kinds of dis in cool mode ON 0 25s and OFF 0 25s blinking in cool mode ON Indicator Display during blink ing ON 0 5s and OFF 0 5s blinking in heat mode ON 0 25s and OFF 0 25s blinking in heat mode ON play status and during blink ing ON 0 5s and OFF 0 5s blinking Green A C Status Possible Causes Showing during max cooling or max heat ing test Showing during mid dle cooling or middle heating test 0 25s and OFF 0 25s 0 25s and OFF 0 25s frequency in test state During cooling and Refer to malfunction drying operation
67. ased the temperature will not change 2 3 When initial set temperature range is 70 81 F if turning on sleep function temperature will decrease 1 8 F for every hour After 3 6 F has been decreased the temperature will not change 2 4 When initial set temperature range is 82 86 F if turning on sleep function temperature will decrease 1 8 F for every hour After 5 4 F has been decreased the temperature will not change 5 Turbo Function This function can be set in cooling or heating mode to quickly cool or heat the room 21 Product Introduction Basic Functions 9K amp 12K 115 volt 22 6 X fan Function X fan function can be set in cooling or drying mode X fan function is unavailable in auto heating or fan mode When X fan is ON after pressing ON OFF button to turn off the unit indoor unit will run in low fan speed for 2min in 2min the horizontal louver is in the minimum angel of swinging other loads are off When X fan is OFE press ON OFF button to turn off the complete unit 2 During X fan operation after pressing X fan button indoor fan stops operates immediately Horizontal louver will close and cold plasma and electrostatic dedusting is OFF as well 7 Control of Indoor Fan he fan speed of indoor fan can be set in turbo high medium low by remote controller It can also set at auto fan speed When indoor fan operates in auto fan speed mode the indoor fan will operate at high speed medium speed low
68. ave a function of power memory the machine can be restarted after remote shutdown and powering up again without delay 1 Cooling mode Start the machine to enter into cooling operation for cooling the compressor is switched on 2 Drying mode Same as the cooling mode 3 Air supplying mode The compressor is switched off 4 Heating mode 1 Start the machine to enter into heating operation for heating the compressor is switched on 2 Defrosting a Defrosting starts the compressor is shut down and restarts it after 55 second delay b Defrosting ends the compressor stops and then starts it after 55 second delay 39 Product Introduction Basic Functions 18K amp 24K 230 volt 2 Outer Fans Control Notes Only the outer fans run for at least 80s in each air flow speed can the air flow be switched after the outer fans run compulsively in high speed for 80s when the machine starts up control the air flow according to the logic After remote shutdown safety stops and when the machine stops after reaching the temperature point as well as after the compressor stops extend 1 minute the outer fans will stop During the period in the 1 minute the air flow of outer fans can be changed according to the outdoor ambient temperature changes when running with force the outdoor fans shall run in the highest air flow 3 4 way valve control 1 The 4 way valve control under the modes of Cooling dehumidification and supplying air
69. blade with a wrench and then remove the axial flow blade 201 Disassembly of Outdoor Unit 36K 240 volt unit shown other models may vary slightly Warning Wait 10 minutes after power is disconnected before starting disassembly 10 Remove motor and motor support a at a 4 E Remove the tapping screws fixing the motor pull out the pin of leading wire for motor and then remove the motor LEN e a d ii m7 Remove the tapping screws fixing the motor support pull it upwards and then remove the motor support EE 3 a ee TA r a rum iru B E Bem 11 Remove 4 way valve m P uma uar Fat TA Unsolder the pipeline between compressor con denser gas and liquid valve and then remove the 4 way valve Note Release all refrigerant before un soldering eget RE Pee E Iz anhxt L Ec 202 Disassembly of Outdoor Unit 36K 240 volt unit shown other models may vary slightly Warning Wait 10 minutes after power is disconnected before starting disassembly Remove the two bolts holding the valve sub assem bly Unsolder the solder joint between gas valve and air return pipe and then remove the gas valve Note when un soldering the soldering joint wrap the gas valve with wet cloth completely to avoid the damage to valve and release all refrigerant completely at first Unsolder the soldering joint between liquid i Es NS gas valve valve and c
70. ble for tempera ture sensor Outdoor tempera ture sensor hasn t been connected well or is dam aged Please check it by referring to the resistance table for tempera ture sensor 1 Outdoor temperature sensor hasn t been connected well or is damaged Please check it by referring to the resistance table for temperature sen sor 2 The head of temperature sensor hasn t been inserted into the copper tube Refer to the mal function analysis overload high temperature resis tant 117 Models NEO30HP230V1AS amp NEO36HP230V1AS Malfunction Name Decrease fre quency due to overcurrent Decrease frequency due to high air discharge Limit decrease fre quency due to anti freezing Voltage of DC bus bar is too high 118 Indicator has 3 kinds of display Indicator Display during blink ing ON 0 5s and OFF 0 5s Operation Cool Heating Yalow Red Off 3S and blink 8 times Off 3S and blink 9 times and blink 2 times Off 3S and blink 11 times and blink 2 times status and during blinking ON 0 5s and OFF 0 5s Off 3S and blink 13 times Off 3S and blink 1 times Off 3S and blink 2 times Off 3S and blink 4 times Green A C Status During cooling and drying oper ation compressor will stop while indoor fan will operate During heating operation the complete unit will stop opera tion All loads operate
71. ch frost on outdoor condenser the complete unit will enter into defrosting automatically to assure the best heating effect During defrosting process the heating indicator is on for 10s and off for 0 5s 4 Blow Residual Heat When heating temperature reaches to the temperature point of stop operation compressor and outdoor fan will stop oper ation The horizontal louver rotates to the defaulted position in cooling mode Indoor fan will stop operation after operat ing at set fan speed for 60s When the unit operates in heating or auto heating mode compressor is started up and the unit will stop operation after indoor fan starts operation Compressor and outdoor fan stop operation The horizontal louver will rotate to the position of breeze defaulted position in cooling The unit will stop operation after indoor fan operates at low fan speed for 10s If the indoor fan stops due to blocking of PG motor the louvers stop at the position when the unit stops If the unit stops for other malfunction the vertical louvers turn to cooling position 2 Indoor fan runs in set fan speed for 60s and then stops 19 5 Cold Air Prevention After the compressor starts the indoor unit and louvers run in the mode below 1 When Tindoor ambient lt 75 F if Ttube lt 104 F the indoor fan doesnt run and then the indoor fan runs in low fan speed after 2min In 2min if Ttube gt 104 F the indoor fan will also run in low fan speed after running in low speed for 1min
72. ching to fan mode etc 2 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 a Toutdoor ambient gt 41 F Toutdoor tube lt 28 4 F b 28 4 F lt Toutdoor ambient lt 41 F Toutdoor tubex21 2 F c 23 F lt Toutdoor ambient lt 28 4 F Toutdoor tubex17 6 F d 14 F lt Toutdoor ambient lt 23 F Toutdoor tube Tcompensatoryx Toutdoor ambient 5 4 F e Toutdoor ambient lt 14 F Toutdoor tube Tcompensatory lt Toutdoor ambient 5 4 F After energization for the first defrosting Tcompensation 0 F if it is not the first time of defrosting Tcompensation will be determined by Toutdoor pipe when quitting defrosting last time a Toutdoor pipe gt 35 6 F Tcompensation 0 F b Toutdoor pipe lt 35 6 F Tcompensation 5 4 F 3 During defrosting if operation time for compressor doesnt reach 3min the defrosting will not be entered in the subsequent 2 hours At that time compressor stops operation and in 30s later the outdoor fan will stop operation in another 30s 4 way valve will stop operation in 30s later compressor will increase its frequency for defrosting When defrosting lasts for 450s or Toutdoor pipe 250 E compressor will decrease its frequency In 30s later compressor will stop operation in another 30s 4 way valve will be started up In 60s later comp
73. ck as possi ble and keep wrapping wet cotton all the time Be sure not to burn out the lead wire of the compres sor 12 Remove compressor compressor Remove the three footing screws of the compressor and remove the compressor 174 Disassembly of Outdoor Unit 12K 240 volt unit Warning Wait 10 minutes after power is disconnected before starting disassembly 1 Remove top cover and rear grille Remove screws used for attaching the top cover pull the top cover upward to remove it Twist off the screws used for fixing the rear grill pull the rear grill upward to remove it AVAVAV AT AY J a VER UE A We ANN WNNNNAV AA iy E 71 T 3 2 Remove front grille and front panel Remove the screws connecting the front grille and the front panel Remove the front grille Remove the screws attaching the panel pull it upward loosen the clasp on the right side rotate it to the left and then remove the front panel front grill 175 Disassembly of Outdoor Unit 12K 240 volt unit Warning Wait 10 minutes after power is disconnected before starting disassembly 3 Remove electric box sub assy Remove the screw connecting the electric box cover with electric box and then remove electric box cover Remove the screws fixing the electric box sub assembly loosen the wire bundle pull out the wiring terminals and then pull the electric box upwards to remove it
74. connector removed from the circuit board The following chart indicates approximate voltage measurements readings may vary slightly depending on models and should be used as a reference only Voltages should be taken with unit running The following chart indicates approximate resistance measurements readings may vary slightly depending on models and should be used as a reference only Turn power off and remove connector from circuit board before reading measurements PG Wire Connector Resistance ohms Brown White 160 Q 400 Q White Red 240 O 81 Troubleshooting Indoor Components To check the condition of the indoor step swing motor resistance measurements may be compared to the following chart Resistance measurements must be taken with power off and the connector removed from the board The following charts indicates approximate readings and may vary with different models Turn power off and remove connector from circuit board 390 0 390 0 390 0 195 Q 390 0 390 0 195 Q 390 0 195 0 195 0 82 Troubleshooting Outdoor Components Cooling Mode Output Fr To check the operation of the EEV Valve in cool ing mode using a digital thermometer record the temperature of the input line and the output line of the valve as indicated in the picture above With the compressor running the input side of the valve should have a higher reading then the output side indicating that the valve is meter ing If the te
75. cover and electric box Remove the two screws on the display Remove the electric box assembly 5 Remove evaporator Remove the screws of the press plate of the con necting pipe Remove press plate of the connecting pipe Remove the three screws at the joint of the evapo rator and rear case Adjust slightly the pipe on the evaporator Remove the evaporator 162 Disassembly of Neo Indoor Unit 115v model Other models may vary slightly Warning Wait 10 minutes after power is disconnected before starting disassembly 6 Remove motor and axial flow blade Stepl Remove the screws of step motor and then re move the motor Remove the screw of the motor press plate and then remove the press plate Remove the screws at the joint of the cross flow blade and the motor Take down the motor Step 2 Remove the cross flow blade 163 Disassembly of Neo Outdoor Unit 115v model Other models may vary slightly Warning Wait 10 minutes after power is disconnected before starting disassembly 1 Remove panel Open the front panel Push the rotor shaft on both sides of the panel to make it separate from the groove Remove the panel 2 Remove top cover Remove connecting screws connecting the top cov er plate with the front panel and the right side plate and then remove the top cover so latian sheet 3 Remove front grille front grille Remove connection screws between the front gril
76. ction of voltage dropping for DC bus bar Malfunction of complete units current detection The four way valve is abnor mal Zero crossing malfunction of outdoor unit Frequency limiting power 124 Off 3S and blink 18 times Off 3S and blink 13 times and blink 20 times Off 3S and blink 20 times During cooling and drying oper ation compressor will stop while indoor fan will operate During heating operation the complete unit will stop opera tion During cooling and drying oper ation compressor will stop while indoor fan will operate During heating operation the complete unit will stop opera tion If this malfunction occurs during heating operation the complete unit will stop opera tion During cooling and drying oper ation compressor will stop while indoor fan will operate During heating operation the complete unit will stop opera tion Supply voltage is unstable Theres circuit malfunction on outdoor units control panel AP1 please replace the outdoor units con trol panel AP1 1 Supply volt age is lower than AC175V 2 Wiring terminal 4V is loosened or broken 3 4V is damaged please replace 4V Replace outdoor control panel AP1 Fault Displays Indoor Unit Malfunction Indicator Display during blink ing ON 0 5s and OFF 0 5s Name Compressor is open cir cuited The tem perature for turning on the unit is reach
77. ctions 18K amp 24K 230 volt 14 Voltage Abnormality Protection for DC Bus To detect voltage abnormality protection for dc bus after completing the pre charge 1 Over High Voltage Protection for DC Bus If it found the DC bus voltage UDC gt UDC Jiekuangchun Protection turn off PFC and stop the compressor at once and it shall show the DC over high voltage failure it should clear out the failure when the voltage dropped to UDC lt UDC Jiekuangchun Recovery and the compressor stopped for 3 min 2 Over Low Voltage Protection for DC Bus If it found the DC bus voltage UDC UDC Wantuochun Protection turn off PFC and stop the compressor at once and it shall show the DC over low voltage and it should clear out the failure when the voltage raised to UDC UDC Wantuochun Recovery and the compressor stopped for 3 min 3 To detect voltage abnormality protect for DC bus when getting electricity If it found the DC bus voltage UDC gt UDC Over High Voltage turn off the relay at once and shows voltage abnormity failure for DC Bus And the failure cant recover except to break off and get the electricity 15 Abnormity Protection for Four way Valve Under the model of heating operation in good condition the compressor is detected TInner Tube TInner Ring TAbnormity Temperature Difference For Four Way Valve Reversion during the running it should be regarded as four way valve reversion abnormality And then it can run if stop the reversion abn
78. d current editions of national as well as local electrical codes Recognize the following safety information Warning Incorrect handling could result in personal injury or death Caution Incorrect handling may result in minor injury or damage to product or property A Warning All electrical work must be performed by a qualified licensed electrician according to local and national codes as well mas the instructions provided in the manual e Before installing modifying or servicing the system the main electrical disconnect must be off There may be more than one disconnect switch Lock out and tag switch with a suitable warning label Never supply power to the unit unless all wir ing and tubing are completed reconnected and checked This system adopts highly dangerous electrical voltage Incorrect connections or inadequate grounding can cause personal injury or death Refer to your local and national codes for proper grounding Have the unit properly grounded with all connec tions tight Loose connections can cause overheat ing and a possible fire hazard Never install the unit in a place where a combustible gas might leak or it may lead to fire or explosion Make a proper provision against noise when the unit is installed at a telecommunication center or hospital Provide a GFIC circuit when the local or national electric code requires it Never wash the unit with water Handle unit transportation with care Use
79. display status and during blinking ON 0 5s and OFF 0 5s D40 D5 DA1 D6 D42 D16 D43 D30 Cooling dehu midifying ex cept the indoor fan motor is running others will stop to run Heating all stop running During cooling and drying operating com pressor stops while indoor fan operates During heating operation the complete unit will stop oper ation i Outdoor tem perature sensor hasn t been connected well or is damaged Please check it by referring to the resistance table for the temperature Sensor Outdoor tem perature sensor hasn t been connected well or is damaged Please check it by referring to the resistance table for the temperature Sensor 109 Models NEO18HP230V1AS amp NEO24HP230V1AS Malfunction Name Overload limit de scending frequency Over cur rent need frequency descending Air ex haust over high need frequency descending DC bus bar voltage is too high 110 OFF 3S and blink 6 times OFF 3S and blink 8 times OFF 3S and blink 9 times OFF 3S and blink 11 times Indoor Unit Displaying Method Outdoor Unit Display LED Indicator Display during blinking ON 0 5s and OFF 0 5s Running Cooling Heating D40 D5 D41 D6 D42 D16 D43 D30 LED LED LED Indicator has 3 kinds of display status and during blinking ON 0 5s and OFF 0 5s Overload nor mal operation compressor is running frequency d
80. e lower side Lift and pull the clapboard sub assembly to remove clapboard sub assy 166 Disassembly of Neo Outdoor Unit 115v model Other models may vary slightly Warning Wait 10 minutes after power is disconnected before starting disassembly 10 Remove 4 way valve assembly Unscrew the fastening nut of the 4 way valve as sembly coil and remove the coil Wrap the 4 way valve assembly with wet cotton and unsolder the four weld spots connecting the 4 way valve assem bly to take it out Note Refrigerant should be dis charged first Welding process should be as quickly as possible and keep wrapping wet cotton all the time Be sure not to burn out the lead out wire of compressor 6 5 Lia be e be 6 Lo Lo Lo Ec Er 11 Remove compressor com pressor Remove the three footing screws of the compressor sm en y od i e 10 ed m Ni y Rd iie d Me m Me cm Rl ins ed es ar ESI and remove the compressor 167 Disassembly of Indoor Unit 9K 240 volt unit models may vary slightly Warning Wait 10 minutes after power is disconnected before starting disassembly 1 Remove Panel Open the front panel Push the rotor shaft on both sides of the panel to make it separate from the groove Remove the panel Panel 2 Remove filter Loosen the clasp of the filter Push the filter inward and then draw it upward to remove it Filter 3 Remove horizontal louver and front case Rem
81. e and chassis valve support and condenser and then remove the right side plate 7 Remove electric box Remove the screws on electric box cover with a screwdriver and then remove the electric box cover Remove the screws on the electric box cut off the tie line with scissors or pliers pull out the wiring terminal and pull it upwards to remove the electric box 200 night side plate Lund eo a Tet Ma a a TR e nnt ro EE ic a i Fe ee eel ti iE E RC LE m R EUR RR UE Vg a Fa La DE Disassembly of Outdoor Unit 36K 240 volt unit shown other models may vary slightly Warning Wait 10 minutes after power is disconnected before starting disassembly 7 Remove electric box cont T electric box 1 remove the electric box 1 v ye es EP 5 E y E Eji Es 7 C 4 gt Y Ial La F Remove the screws between electric box 1 and Ia Ih 11 LA de left side plate with screwdriver pull it upwards to A tht E i fa je gt AA O A rta Vest Fa Ea Ex nu 8 Remove left side plate left side plate os BH aM d 3 3 Remove the screws connecting the left side plate A El and chassis with screwdriver and then remove the E wild F fa all A ae left side plate 3 a ll i 9 Remove axial flow blade Remove the nuts on
82. e remote control or there is a button input the single tube cooler doesnt receive the remote control ON signal under the mode of heating mode 8 Auto button If the controller is on it will stop by pressing the button and if the controller is off it will be automatic running state by pressing the button swing on and light on and the main unit will run based on the remote control if there is remote control order 9 Up and Down Swinging Control When power on the up and down motor will firstly move the air deflector to counter clockwise close the air outlet After starting the machine if you dont set the swinging function heating mode and auto heating mode the up and down air deflector will move to D clockwise under other modes the up and down air deflector will move to L1 If you set the swinging function when you start the machine then the wind blade will swing between L and D The air deflector has 7 swinging states Location L Location A Location B Location C Location D Location L to Location D stop at any location between L D the included angle between L D is the same The air deflector will be closed at 0 Location and the swinging is effectual only on condition that setting the swinging order and the inner fan is running The indoor fan and compressor may get the power when air deflector is on the default location cooling angle T oO Jr 10 Display 1 Operation pattern and mode pattern display All the di
83. e compressor is hot tripping overload Faulty protector Replace protector The toque of the swing motor not sufficient eplace swing motor Indoor swing motor Poor or wrong connection Repair connections inoperative The controller is damaged Replace control board Damaged main control board Replace control board Outdoor unit and indoor unit nor running Improper setting of temperature Adjust temperature setting 134 Miscellaneous Malfunctions cont Drainage pipe blocked or broken Repair or replace pipe Damaged or insufficient pipe cT insu on Re wrap pipe insulation Indoor fan loose or hitting sides Tighten and adjust Foreign object in indoor unit Remove object Compressor vibrating or shaking Adjust support washer of compressor and tighten screws Outdoor tubing touching Reroute and adjust the tubing Inner plates touching Adjust plates isolate with insulation Adjust louver Water leakage Abnormal sound and or shake Outdoor louver touching outer case Abnormal sound inside compressor Replace compressor 135 Compressor Running Hot Improper installation bad unit ventilation not level direct sunlight Check for proper installation per etc manual gt Ambient temperature too high Check for operational limits Filters or coils dirty Clean indoor coils filters and outdoor coils operating at correct speeds board Indoor or outdoor fans not Check fan settings and contr
84. e controller at set temperature display currently set temperature will be displayed e Only when remote signals are converted from other display states into indoor ambient temperature display state the remote controller will display indoor ambient temperature for 5 seconds and then return to set temperature display e Only when remote signals are converted from other display states into outdoor ambient temperature display state the remote controller will display outdoor ambient temperature for 5 seconds and then return to set temperature display e Ifthe controller is lack of outdoor display functions as the signal is received set temperature will be displayed e When the unit is turned off temperature display will be compulsively set at given temperature by the controller When the unit is turned on patterns as set by remote signals will be displayed e If user does not set up temperature display state given temperature will be displayed 2 Failure display of indoor unit 1 Requirements for failure display when multiple failures appear at the same time failure protection codes shall be displayed alternatively Hardware failures shall be displayed immediately referring to requirements in Failure State Display Table e Operation states shall be displayed immediately referring to requirements in Failure State Display Table e Other failures shall be displayed 200s after the compressor stops referring to requirements in Fail
85. e joint of the cross flow blade and the motor Take down the motor Remove the cross flow blade 170 Disassembly of Outdoor Unit 9K 240 volt unit Warning Wait 10 minutes after power is disconnected before starting disassembly 1 Remove cable plate and valve cover Remove screws attached to cable cross plate and valve cover then remove them 2 Remove top cover Remove screws connecting the top cover plate with the front panel and the right side plate and then remove the top cover 3 Remove reactor sub assy Remove screws holding reactor sub assembly and then pull the reactor sub assembly upwards to re move it Remove screws on the reactor sub assem bly cover and then remove the reactor 171 Disassembly of Outdoor Unit 9K 240 volt unit Warning Wait 10 minutes after power is disconnected before starting disassembly 4 Remove front grille front grille Remove screws between the front grille and the front panel Then remove the front grille 5 Remove front panel Remove screws connecting the front panel with the chassis and the motor support and then remove the front panel 6 Remove right side plate Remove screws connecting the right side plate with W e 5 A I ri y a ct T Y EE the valve support and the electric box Then remove the right side plate gt F EA E K R ae right side plate 172 Disassembly of Outdoor Unit 9K 240 volt un
86. e stopping plate for in door unit and then remove the pipe stopping plate 15 Remove damping board SCEN Naa mping board E gt Remove two screws on damping board and then remove the damping board 194 Disassembly of Indoor Unit 36K 240 volt unit shown other models may vary slightly Warning Wait 10 minutes after power is disconnected before starting disassembly 16 Remove evaporator Remove screws between evaporator and bottom case Turn over the indoor unit and adjust the pipe line to the position as shown by the broken line Lift up the evaporator and then remove the evapo rator evaporator 17 Remove motor bracket Remove two screws on the motor connecting plate and then remove the plate 195 Disassembly of Indoor Unit 36K 240 volt unit shown other models may vary slightly Warning Wait 10 minutes after power is disconnected before starting disassembly 18 Remove cross flow blade and motor Remove screws attached to cross flow blade and motor Remove the motor sub assembly Separate two cross flow blade 196 Disassembly of Indoor Unit 36K 240 volt unit shown other models may vary slightly Warning Wait 10 minutes after power is disconnected before starting disassembly 19 Remove temperature sensor Remove the rubber cushion on the cross flow blade cushion rubber Remove the rubber cushion from the base 197 Disassembly of
87. e to the valve cause by high temperature Remove the screws attached to the liquid valve and unsolder the welding joint connecting the liquid valve to the Y type pipe to remove the liquid valve Remove the screws attached to the valve support valve support with the chassis sub assembly then remove the eevee valve support 8 Remove compressor compressor Remove the three nuts on the compressor feet and then remove the compressor 178 Disassembly of Outdoor Unit 18K 240 volt unit Warning Wait 10 minutes after power is disconnected before starting disassembly 1 Remove top cover and handle Remove the screws used for attaching the handle pull the handle upward to remove it Loosen the screws holding the valve cover and then remove the valve cover Remove the screws used for attaching the top cover pull the top cover upward to remove it 179 Disassembly of Outdoor Unit 18K 240 volt unit Warning Wait 10 minutes after power is disconnected before starting disassembly 2 Remove front grille and front panel Remove the screws connecting the front grille and the front panel front grills Remove the front grille Remove the screws attached to the panel pull it up ward loosen the clasp on the right side and rotate it to the left and then remove the front panel 3 Remove right and left side plate Remove the screws connecting the right side plate with the chassis the valve
88. e unit is not long enough the high to the Charging section of this manual and low side pressure of the system is not balanced restart it after 3 minutes E Yes Eliminate the malfunction No Replace the outdoor main board Eliminate the malfunction hs No Replace the compressor End Troubleshooting 132 Miscellaneous Malfunctions Fan capacitor has open circuit or damaged eplace capacitor Replace motor Motor winding open Replace motor 7 l Repair connection wire per Incorrect wiring or bad connection sowie cnin P schematic Fan capacitor has open circuit or damaged eplace capacitor Motor winding open Replace motor Repair connection wire per Incorrect wiring or bad connection npe M P schematic Faulty compressor Replace compressor Open or shorted capacitor Replace capacitor Motor overload protector faulty The fan does not run when set to run Compressor runs outdoor fan will not Outdoor fan runs compressor will not run Check for proper voltage of power Improper voltage module replace module if input is OK and output is incorrect Incorrect wiring or bad connection Repair connection wire per schematic Overload protector faulty Replace protector if faulty 133 Miscellaneous Malfunctions cont Incorrect refrigerant charge Charge per instructions Faulty metering device Check refrigerant flow Faulty valve in compressor Replace compressor Th
89. eat blinking in heat mode ON 0 25s and OFF blinking in heat mode ON 0 25s and OFF Indicator has 3 kinds of display status and during blinking ON 0 5s and OFF 0 5s A C Status During cooling and drying oper ation compressor will stop while indoor fan will operate During heating operation the complete unit will stop opera tion Possible Causes 1 Measure the voltage of position L and N on wiring board XT if the voltage is higher than 150VAC turn on the unit after the supply voltage is increase to the normal range 2 If the AC input is normal measure the voltage of electrolytic capac itor C on control panel AP1 if its normal theres malfunction for the circuit please replace the control panel AP1 Showing during min cooling or min heating test Showing during nominal cooling or nominal heat ing test Showing during max cooling or max heating test 119 Models NEO30HP230V1AS amp NEO36HP230V1AS Indicator has 3 kinds of displ Malfunction Indicator Display during blink ndicator has 3 kinds of display A C Status tat d during blinking i Mame ing ON 0 5s and OFF 0 5s status and during blinking ON Possible Causes 0 5s and OFF 0 5s Operation Ces Heating Yalow nea Green Compressor intermediate frequency in test state Overcurrent protection of phase current for compres sor Charging malfunction of capacitor Malfunc
90. eceiving any remote signal or signal of keys the fluorine collecting mode will exit and operate in accordance with the current orders set or exit the fluorine collecting mode after running for 25 minutes and the machine will be shut down automatically 27 Basic Functions 18K amp 24K 230 volt Outdoor Unit A Input Parameter Compensation and Calibration 1 Check the ambient temperature compensation function Indoor ambient temperature compensation function a In cooling mode the indoor ambient temperature participating in computing control Tindoor ambient temperature A Tcooling indoor ambient temperature compensation b In heating mode the indoor ambient temperature participating in computing control Tindoor ambient temperature ATheating indoor ambient temperature compensation 2 Check effective judgment controls of parameters Effective judgment function of the outdoor exhaust temperature thermo bulb When conditions a and b are satisfied the outdoor exhaust temperature thermo bulb is judged not to be connected into place the main board of outer units will display failure of the outdoor exhaust temperature thermo bulb not connected into place stop the machine for repairing and resume the machine by remote controls of ON OFF a Judgment of exhaust detection temperature change After the compressor starts up and runs for 10 minutes if the compressor frequency f 40Hz and the rising value Texhaust Texhaust after s
91. ed Frequency limiting module tem perature Normal com munication cH BEN Outdoor Unit Unit Indicator has 3 kinds of display status and during blinking ON EU 5s and OFF 0 5s Yellow Off 3S and blink and blink 8 times and blink 11 times Defrosting will It s the normal occur in heating state mode Compres sor will operate while indoor fan will stop operation 125 AE Models NEO30HP230V1AS amp NEO36HP230V1AS C ew nator bins once _ _Conprssersetnome Yellow indicator blinks twice Defrosting normal display raton racimo Sones J Antros rien Dero nacar tes Pues Yetow racers Sines jf ororen peio aov nacen ines J overa recon Yetowindcator inks Times __Ertaust protection _Yetow indisiorbinks 8 imes Compressor overoad protector Outdoor unit Redindcatorbinks once Coating or eating cuentas indicator display dropped frequency current ee M frequency current lesiona teo WTP rant lt dropped frequency current Red indicator blinks 5 times Outdoor temp sensor malfunction Red indicator blinks 6 times Outdoor amb sensor malfunction Red indicator blinks 7 times Outdoor exhaust sensor malfunction Red indicator blinks 8 times gt Starting at temp does not reach Green Indicator does not blink 3 Communication is abnormal Red indicator blin
92. eed of module you should adjust the compressor frequency by reducing 8Hz 90s till the lower limit After it was running 90s at the lower limit if Tfrequency reducing temperature at normal speed of module x TModule you should stop the machine for module overheating protection 4 Reducing frequency at high speed and power turn off If Tfrequency reducing temperature at high speed of module x TModule T Power turn off temperature of module you should adjust the compressor frequency by reducing 30Hz 90s till the lower limit After it was running 90s at the lower limit if Tfrequency reducing temperature at normal speed of module x TModule you should stop the machine for module overheating protection 5 Power turn off If the TPower turn off temperature of module x TModule you should stop the machine for module overheating protection If TModule lt TLimited frequency temperature of module and the compressor has been stopped for 3 minutes the machine should be allowed to operate 6 If protection continuously occurs for six times it should not be resumed automatically and you should press the ON OFF button to resume During the process of running if the running time of compressor exceeds the tProtection times clearing of module the discharge protection is cleared to recount Stopped or transferred to supply air mode will clear the trouble times immediately if the trouble cannot be 44 Basic Functions 18K amp 24K 230 volt 10
93. efrigerant charge correct Charge Unit according to service manual Compressor Wires Does unit startup normally Replace the controller AP1 Yes Is problem corrected Replace Compressor End Troubleshooting 152 error Code Diagnostics E HC PFC Power Factor Correction Protection HC PFC Power Factor Correction Protection Status 1 Check for damage to the reactor and PFC During cooling amp dehumidifying indoor unit capacitor of the outdoor unit operates while other functions stop During 2 Refer to troubleshooting procedure below heating operation complete unit stops Start Troubleshooting Check wiring of the reactor L and PFC capacitor Outdoor Unit Are wires connected proper Correct according Is problem Yes with no short circuits to circuit diagram corrected No Remove the PFC Capacitor and test resistance of the two terminals Is the resistance Replace the Is problem about zero Capacitor corrected Disconnect the reactor wires amp measure the resistance between the two terminals of the reactor Is the reactor Is problem damaged or Replace the reacto esi shorted Replace the AP control panel End Troubleshooting 153 HO H3 Error Codes Fault amp Status Possible Causes Decrease frequency due to overload Status All systems operate normal with decrease in capacity 1 Refer to E8 troubleshooting procedures Defrosting Sta
94. erly Re insert the jumper cap No Is system Yes operating properly Error Code Diagnostics E EE EU FH E2 Error Codes Fault amp Status Possible Causes EEProm Malfunction Status During cooling amp dehumidifying indoor unit 1 Faulty outdoor control board replace AP1 operates while other functions stop During heating operation complete unit stops Decrease in Frequency due to over heating 1 After the unit is off for 20 minutes check for of Module sufficient thermal grease on IPM module of Status the outdoor control board and that is seated All units operate with decrease in capacity tightly 2 Faulty control board replace Decrease frequency due to anti freezing 4 Status i All units operate with decrease in capacity Poor air return in indoor unit 2 Fan speed too slow Antifreeze Protection Status 1 Poor air return in indoor unit Cooling operation compressor stops while 2 Fan speed abnormal indoor fans runs Heating operation complete 3 Indoor coil dirty unit stops 141 E1 Error Codes Compressor High Pressure Protection E1 High Pressure Protection Fault amp Status Possible Causes High Pressure Protection of System Status During cooling amp dehumidifying indoor unit operates while other functions stop During heating operation complete unit stops Refrigerant overcharge Dirty outdoor coil Blockage of airflow Outdoor ambient too high DUE II
95. escending Overload nor mal operation compressor is running frequency descending Overload nor mal operation compressor is running frequency descending Cooling de humidifying compressor stop running Fan motor works Heat ing all will stop o Please refer to troubleshooting 1 Input power supply is too low 2 System voltage is too high over is too much 1 Overload is too much ambi ent temp is too high 2 Refrig erant is short 3 Electric expan sion malfunction 1 Testing wire terminal L and N position If higher than 265 VAC please cut off the power supply and restart until back to normal 2 If input voltage is normal testing the voltage of electrolytic capacitor on API after turn on the unit There may be some problem and replace the AP1 if the elec trolytic capacitor voltage range at 200 280V Models NEO18HP230V1AS amp NEO24HP230V1AS Indoor Unit Displaying Method Outdoor Unit Display LED la Indicator Display during Indicator has 3 kinds of display status and alfunction N blinking ON 0 5s and OFF 0 5s during blinking ON 0 5s and OFF 0 5s A C Status Malfunctions ame Running Cooling Heating D40 D5 D41 D6 D42 D16 D43 D30 LED LED LED Cooling The circuit dehumidifyi AP1h Whole unit s ne ened on y OFF 3S compressor malfunction current test and blink stop running replace the ing malfunc 13 times Fan motor outdoor unit
96. f compressor phase current continuously occurs for six times it should not be resumed automatically and you should press the ON OFF button to resume During the process of running if the running time of compressor exceeds the tClearing Time of Compressor Phase Current Times the overcurrent protection is cleared to recount 12 Starting up Failure Protection for Compressor Stop the compressor after its starting up fails restart it after 20s if the fault doesn t shows and if they are all failing for the successive start 3 times it shall be reported as Starting up Failure and then restart up it after 3 min When it still not be able to operate through carry out the above process for 5 times it is available if press ON OFF And the compressor should be cleared the times after it run 2 min 13 Out of Step Protection for Compressor The out of step protection signal should be detected immediately after starting up compressor and once find the out of step protection signal the out of step protection shall be stopped if it can run for lasting power turn off 3 min the machine shall be allowed to operate If it still cant run automatically when the turn off times protection for compressor happens to stop working for 6 times in succession it needs to press ON OFF to operate And if the running time is more than 10 min the power turn off times for out of step protection shall be cleared and recounted 45 Product Introduction S Basic Fun
97. ff 3S and blink 6 times Off 3S and blink 6 times Indicator has 3 kinds of display status and during blinking ON 0 5s and OFF 0 5s A C Status During cooling operation com pressor stops while indoor fan motor operates During heating operation the complete unit stops During cooling operation com pressor stops while indoor fan motor operates During heating operation the complete unit stops During cooling operation com pressor stops while indoor fan motor operates During heating operation the complete unit stops All load operate normally while operation frequen cy for compressor is decreased Possible Causes Refer to the mal function analysis Refer to the mal function analysis Replace outdoor control panel AP1 Discharging after the complete unit is de energized for 20 mins check on whether the thermal grease on IPM Module of outdoor control panel AP1 is suffi cient and whether the radiator is inserted tightly If its no use please replace control panel AP1 115 Models NEO30HP230V1AS amp NEO36HP230V1AS Indicator has 3 kinds of display status and during blinking ON A C Status Possible Causes 0 5s and OFF 0 5s Malfunction Indicator Display during blink ing ON 0 5s and OFF 0 5s Malfunction protection of jumper cap Gathering refrigerant Indoor ambi ent tempera ture sensor is open short circuited Indoor evap
98. g heating operation the complete unit will stop opera tion Internal fan mo tor external fan motor compressor and electric heater stop operation guide louver stops at present location During cooling and drying oper ation compressor will stop while indoor fan will operate During heating operation the complete unit will stop opera tion During cooling and drying oper ation compressor will stop while indoor fan will operate During heating operation the complete unit will stop opera tion Possible Causes Refer to the mal function analysis IPM protection loss of synchro nism protection and overcurrent protection of phase current for compressor 1 Bad contact of DC motor feed back terminal 2 Bad contact of DC motor control end 3 Fan motor is stalling 4 Motor malfunction 5 Malfunction of mainboard rev detecting circuit Refer to the mal function analysis IPM protection loss of synchro nism protection and overcurrent protection of phase current for compressor Refer to the mal function analysis Models NEO30HP230V1AS amp NEO36HP230V1AS Malfunction Name Outdoor DC fan motor malfunction Power protec tion Indoor unit and outdoor unit doesn t match Failure start up Malfunction of phase cur rent detection circuit for compressor Indicator has 3 kinds of display Indicator Display during blink ing ON 0 5s
99. han 20 v No Replace the outdoor mainboard End Troubleshooting 160 puc Improper input voltage Poor connection on reactor Reactor damaged Bad AP1 control board Replace outdoor main board Is the malfunction Yes corrected Disassembly of Neo Indoor Unit 115v model Other models may vary slightly Warning Wait 10 minutes after power is disconnected before starting disassembly 1 Remove Panel Open the front panel push the rotor shaft on both sides of the panel to make it separate from the groove Remove the panel Panel 2 Remove filter Loosen the clasp of the filter pushing the filter inward and then lift it upward to remove Filter 3 Remove horizontal louver and front case Remove axial sleeve of horizontal louver Bend the louver outwards and then remove the louver Loosen the screws of the electric box cover 2 then remove cover 2 Open the screw cap on the front of the case then remove the screws holding the front case Remove the six clasps of the front case then remove Horizontal Louver 161 Disassembly of Neo Indoor Unit 115v model Other models may vary slightly Warning Wait 10 minutes after power is disconnected before starting disassembly 4 Remove electric box assembly Remove the screws of the electric box assembly Remove the screws at the joint of the earthing wire and evaporator Loosen the clasp at the joint of the electric box
100. harging section 144 Error Code Diagnostics E5 Error Code Overcurrent Protection E5 Fault amp Status Overcurrent Protection Status During cooling amp dehumidifying indoor unit operates while other functions stop During heating operation complete unit stops Start Troubleshooting Check if compressor s connection line is properly connected Yes Check if current value is higher than HO the protectors setting No Is units high pressure normal No Check if unit voltage is normal Yes Replace main board pe poe Possible Causes Supply voltage is unstable Supply voltage is too low Coils are dirty Improper refrigerant charge Adjust compressor s connection line Replace overcurrent protector Refer to high pressure protection error Check connections contact electric utility company 145 E6 Error Code Communication Failure of Some Indoor Units E6 Communication Failure Status Improper voltages Cooling operation compressor stops while 2 Mis matched indoor and outdoor units indoor fans runs Heating operation complete 3 Improper wiring between indoor and outdoor unit stops units Communication failure of some indoor units De energize check the wire connections of indoor and outdoor units and power to outdoor unit Are all connections NO Did this correct the Yes Correct connections correct problem No De e
101. icator Display during blinking ON 0 5s and OFF 0 5s Off 3S and blink ambient Off 3S and temperature blink 3 sensor is times 6 times open short circuited Outdoor condenser Off 3S and blink 4 times temperature and blink 5 times sensor is open short circuited Outdoor disch MR Off 3S and blink 5 times temperature and blink 7 times sensor is open short circuited Limit Off 3S and decrease blink 6 times and blink 3 times frequency due to overload Indicator has 3 kinds of display status and during blinking ON 0 5s and OFF 0 5s Operation Cool Heating Yellow Red Green A C Status During cooling and drying oper ating compressor stops while indoor fan operates During heating operation the complete unit will stop operation During cooling and drying oper ating compressor stops while indoor fan operates During heating operation the complete unit will stop operation During cooling and drying oper ation compressor will sop after op erating for about 3 mins while indoor fan will operate During heating operation the complete unit will stop after op erating for about 3 mins All loads operate normally while operation frequen cy for compressor is decreased Possible Causes Outdoor tempera ture sensor hasn t been connected well or is dam aged Please check it by referring to the resistance ta
102. id and gas valves closed 1 After no leaks have been detected connect a vacuum pump to the outdoor unit 2 Connect appropriate hoses to manifold gauge vacuum pump and unit refrigeration connections 3 Evacuate the system until the micron gauge reads no higher than 350 microns 4 Close valve to vacuum pump if pressure does not rise above 500 microns after one minute the evacuation should be complete 5 fit does rise check for leaks and or evacuate longer 6 For refrigerant lines longer than 25 feet refer to in stallation instructions chart included with the unit installation manual for additional charge 65 SE Connect the Outdoor Wiring Note Confirm proper voltage before connecting wires 1 Remove the handle on the right side plate of the out door unit 2 Connect wiring from indoor unit to 1 2 3 amp ground being careful to match color code of indoor connections Repeat this for each indoor unit 3 Connect power wiring form outdoor disconnect to L1 L2 and ground 4 Check all connections to tightness 5 Reinstall the cover handle Note Follow all local electrical codes for electrical wiring 66 Filter Maintenance and Emergency Operation Cleaning Air Filter 1 Lift up the front panel to access the air filter Fig A The first stage filter can be cleaned with a vacuum cleaner or by washing with a mild soap and lt 113 F water Fig B 3 Replace dry filter into indoor unit as sho
103. inaria diodes 168 170 Disassembly Of 9 000 Dtuh 240 volt Outdoor SS OPES nororiente 171 174 Disassembly of 12 000 btuh 240 volt Outdoor SystemS ssssssssesssssssssseseseseseesssssssssrsesesessesesesesesesesseseesees 175 178 Disassembly of 18 000 btuh 240 volt Outdoor EMS armani ta 179 183 Table of Contents Disassembly of 24 000 btuh 240 volt Outdoor ste ense vo 184 188 IJisdssembboP2 A0 VOIE Indoor Sy SIONIS ropita 189 197 Disassembly of 30 000 amp 36 000 240 volt Indoor Systems eere 198 204 Appendix 1 3 Temperature Sensor Resistance Table norte iix d e aeta pUR MES iE ne 205 210 A Warning Installing starting up and servicing air conditioner can be hazardous due to system pressure electrical components and equipment location etc Only trained qualified installers and service personnel are allowed to install start up and service this equipment Untrained personnel can perform basic maintenance functions such as cleaning coils All other operations should be performed by trained service personnel When handling the equipment observe precautions in the manual and on tags stickers and labels attached to the equipment Follow all safety codes Wea safety glasses and work gloves Keep quenching cloth and fire extinguisher nearby when brazing Read the instructions thoroughly and follow all warnings or cautions in literature and attached to the unit Consult local building codes an
104. ing mode in which case the four way valve the compressor and the outdoor fan will operate simultaneously and the indoor fan will run at preset speed in the condition of preset cold air prevention If Tamb gt Tpreset 9 F the compressor will stop the outdoor fan will stop with a time lag of 60s and the indoor fan will stop after 60 second blow at low speed If Tpreset 3 6 F lt Tamb lt Tpreset 9 F the unit will maintain its original operating status o Under this mode the four way valve is energized and temperature can be set within a range of 61 86F The operating symbol the heating symbol and preset temperature are revealed on the display b 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 A Toutdoor amb gt 41 F Toutdoor pipe lt 28 4 F B 28 4 F lt Toutdoor amb C 23 F Toutdoor amb lt 28 4 F Toutdoor pipe 17 6 F D 14 F lt Toutdoor amb lt 23 F Toutdoor pipe Tcompensation lt Toutdoor amb 5 4 F E Toutdoor amb lt 14 F Toutdoor pipe Tcompensation Toutdoor amb 5 4 F F Toutdoor pipe gt 35 6 F Tccompensation 0 F b Toutdoor pipe lt 35 6 F Tccompensation 5 4 F At that time the indoor fan stops and the compressor stops and after 60 seconds the outer fan will s
105. ink 5 times Off 3S and blink 6 times Off 3S and blink 8 times Off 3S and blink 9 times and blink and blink 2 times 2 times play status and during blink ing ON 0 5s and OFF 0 5s Off 1S and blink 7 times Off 1S and blink 3 times Off 1S and blink 1 times Off 1S and blink 2 times Off 3S and blink 4 times Green A C Status 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 frequen cy for compressor is decreased During cooling and drying operation compressor will stop while indoor fan will operate During heating operation the com plete unit will stop operation All loads operate normally while operation frequen cy for compressor is decreased All loads operate normally while operation frequen cy for compressor is decreased Possible Causes 1 Outdoor tempera ture sensor hasn t been connected well or is damaged Please check it by referring to the resistance table for tempera ture sensor 2 The head of temperature sensor hasn t been inserted into the copper tube Refer to the mal function analysis overload high tem perature resistant The input supply voltage is too low System pressure is t
106. ion compressor is powered off while outdoor ambient temperature lt 23 F b Stop condition the compressor will be turned off under any of the condition i Compressor is powered on ii Compressor is powered off while outdoor ambient temperature228 4 F c Outdoor ambient temp sensor is with malfunction the electric heating band will stop operation 2 Condenser electric heating band control 1 When Toutdoor ambientx33 8 F the condenser electric heating band will start operation 2 The chassis electric heating band will operate during the course from the unit starts defrosting to defrosting finished and the compressor start operation after 3mins operation of compressor and Toutdoor ambient237 4 F electric heating stop operation 3 When Toutdoor ambient237 4 F condenser electric heating band stop operation 4 When 33 8 F Toutdoor ambient lt 37 4 F condenser electric heating band keep its original status When theres malfunction of outdoor ambient temp sensor the electric heating band stop operation and restart operation 2mins later 14 Compulsory defrosting function 1 Start up compulsory defrosting function Under ON status set heating mode with remote controller and adjust the temperature to 16OC Press button successively within 5s and the complete unit will enter into compulsory defrosting status Meanwhile heating indicator on indoor unit will ON 10s and OFF 0 5s successively Note If complete un
107. ion D clockwise in heating mode and auto heating mode the louver will rotate to horizontal position L1 clockwise in other modes The indoor fan and compressor will be energized after the louver opens to position L1 If set the swing func tion while turning on the unit the louver will swing between L1 and D The louver will close to position L when turning off the unit L 9 Display 1 Upon energization within 2s the unit will display all icons Under standby state running indicating mark is displayed If the unit is started by remote controller running indicating mark gives off light meanwhile the mark of current running mode will be di played If the light button is turned off no mark will be displayed 2 In defrosting the heating indicator is on for 10s and off for 0 5s In X fan mode the cooling indicator is on for 0 5s and off for 10s 3 In auto mode the nixie tube displays 25 in cooling and fan and displays 20 in heating 4 The nixie tube displays set temperature 5 When there is a malfunction or protection if timer off is set this function will be executed 10 Memory Function Memorized items mode up amp down swing light set temperature and set fan speed When power is recovered after power failure the unit will automatically start operation according to memorized status After power recovery the unit without timer setting before power failure will operate according to the last setting the unit with general
108. it Warning Wait 10 minutes after power is disconnected before starting disassembly 7 Remove axial flow blade Remove the nut attached to the blade and then remove the axial flow blade 8 Remove motor and support assy Remove the four tapping screws attached to the motor Pull out the lead wire and remove the motor Remove the two tapping screws attached to the mo tor support Lift motor support to remove it 9 Remove electric box assy Ie dk electric box assy Remove the two screws attached to the cover of the electric box Lift to remove the cover Loosen the wire and disconnect the terminal Lift to remove the electric box assembly 173 Disassembly of Outdoor Unit 9K 240 volt unit Warning Wait 10 minutes after power is disconnected before starting disassembly 10 Remove clapboard sub assy a bo x E fe ha if AA e Loosen the screws of the clapboard sub assembly The clapboard sub assembly has a hook on the b lower side Lift and pull the clapboard sub assembl to remove Fore co a Lu o tL s a ct Ea AA E T i AY TON b a x WT 11 Remove 4 way valve Unscrew the attached nut of the 4 way valve assem bly coil and remove the coil Wrap the 4 way valve assembly with wet cotton and unsolder the four weld spots connecting the 4 way valve assembly to take it out Note Refrigerant should be discharged first Welding process should be as qui
109. it has malfunction or stops operation due to protection compulsory defrosting function can be started up after malfunction or protection is resumed 2 Exit compulsory defrosting mode After compulsory defrosting is started up the complete unit will exit defrosting operation according to the actual defrosting result and the complete unit will resume normal heating operation 31 Basic Functions 9K amp 12K 230 volt 32 Product Introduction 15 Refrigerant recovery function applicable for moving the unit or maintaining the unit 1 Start up refrigerant recovery function Set cooling mode with remote controller within 5min after energization adjust temperature at 16OC and press light button on remote controller for 3 times successively to any one indoor unit within 3s and then the complete unit will enter into refrigerant recovery status All indoor units display Fo Maintenance person close all liquid valves After 5min withstand the thimble of all checking valves with tools one by one If theres no refrigerant spraying out close corresponding valve immediately turn off the unit with remote controller and then remove the connection pipe 2 Exit refrigerant recovery function During refrigerant recovery process if any one indoor unit receives any remote control signal or refrigerant recovery function has operates for about 25min refrigerant recovery function will be exited automatically If the complete unit is at standby s
110. ituation 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 lage 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 Cooling Mode a Working conditions and process of cooling When Tamb gt Tpreset the unit will enter cooling operation in which case the indoor fan the outdoor fan and the compressor will work and the indoor fan will run at preset speed When Tamb lt Tpreset 3 6 F the compressor will stop the outdoor fan will stop with a time lag of 60s and the indoor fan will run at preset speed When Tpreset 3 6 F lt Tamb lt Tpreset 1 8 F the unit will remain at its previous state o Under this mode the four way valve will be de energized and temperature can be set within a range from 61 to 86 F If the compressor is shut down for some reason the indoor fan and the swing device will operate at original state Start cooling wee 13 5 oF L Stop cooling 26 minutes qe pr minutes 6 minutes Compresso Outdoor fan b Protection e Antifreeze protection Under cooling and dehumidifying mode 6 minutes after the compressor is started If Tevap lt 35 6 F the compressor will operate at reduced frequency If Tevap
111. ks 4 times T tube in 126 AE Dispys Models NEO30HP230V1AS amp NEO36HP230V1AS Analysis or processing of some of the malfunction display 1 Compressor discharge protection Possible reasons shortage of refrigerant blockage of air filter poor ventilation or air flow short pass for con denser the system has non condensing gas such as air water etc blockage of capillary assy including filter leakage inside four way valve causes incorrect operation malfunction of compressor malfunction of protection relay malfunction of discharge sensor outdoor temperature too high Processing method refer to the malfunc tion analysis in the above section 2 Low voltage overcurrent protection Possible reason Sudden drop of supply voltage 3 Communication malfunction Processing method Check if communication signal cable is connected reliably 4 Sensor open or short circuit Processing method Check for normal condition of sensor connected with the corresponding position on the controller and if damage of lead wire is found 5 Compressor over load protection Possible reasons insufficient or too much refrigerant blockage of capillary and increase of suction temp improper running of compressor burning in or stuck of bearing damage of discharge valve malfunction of pro tector Processing method adjust refrigerant amount replace the capillary replace the compressor use universal meter to check if the contactor
112. l shut down the unit if pressures are higher abnormal If this is detected an E1 error code will be generated Please refer to the troubleshooting section for more detailed information he exhaust temperature sensor monitors the refrigerant discharge temperature and will send information to the inverter control board for system operation The following actions can occur Exhaust Temperature 208 F Compressor will not rise above present level Exhaust Temperature 217 F Compressor will run at reduced frequency Exhaust Temperature 194 F Compressor off for 3 minutes minimum the compressor will restart Error Code F5 will be generated if the sensor is open or shorted Please refer to the troubleshooting section for more detailed information 91 Outdoor Temperature Sensor This sensor is a negative coefficient thermistor that will decrease in resistance as the temperature increases This sensor will monitor the temperature of the outdoor air The reading will be used by the inverter board to adjust frequency calculations Error Code F3 will be generated if the sensor is open or shorted Please refer to the troubleshooting section for more detailed information 92 AE IO Models NEO09HP115V1AS amp NEO12HP115V1AS Table 1 State of Outdoor Unit LEDs F Indoor Flashing Times Error Item Unit Possible Cause of Fault Di Green Red Yellow isplay LED LED LED Stop for anti freezing blink3 refrigerant leakage
113. l stop while indoor fan will operate During heating operation the complete unit will stop opera tion All loads operate normally while operation frequen cy for compressor is decreased During cooling and drying oper ation compressor will stop while indoor fan will operate During heating operation the complete unit will stop opera tion Possible Causes After the complete unit is de ener gized for 20 mins check whether the thermal grease on the IPM Module of outdoor control panel AP1 is suffi cient and whether the radiator is inserted tightly If its no use please replace control panel API Refer to the mal function analysis overload high temperature resis tant 1 Wiring terminal OVC COMP is loosened In normal state the resistance for this terminal should be less than lohm 2 Refer to the mal function analysis 121 Models NEO30HP230V1AS amp NEO36HP230V1AS Malfunction Name IPM protec tion Module temperature is too high Internal motor fan motor do not operate Desynchro nizing of compressor PFC protec tion 122 Indicator has 3 kinds of display Indicator Display during blink ing ON 0 5s and OFF 0 5s and blink 11 times Off 3S and blink 7 times status and during blinking ON 0 5s and OFF 0 5s A C Status During cooling and drying oper ation compressor will stop while indoor fan will operate Durin
114. late and calculated additional amount Check if operation mode of indoor unit is set No Refer to instruction manual of properly indoor unit Yes No Check if gas and liquid valves are open Completely open all valves Yes No Check if panel of outdoor unit is firmly closed Close the panel Yes es Check air flow of indoor and outdoor units for No Remove the barrier obstructions Y Measure the fan motor input Yes Check operation of swing louver Ye Check indoor filter and coils for dirt Measure swing motor signal input Check inlet and outlet of main pipes connecting each indoor unit and capillary of Refer to care and maintenance Yes System piping is blocked indoor and outdoor units Replace the parts such as filter etc as needed 143 Error Code Diagnostics E4 Error Code High Discharge Temperature Protection of Compressor High Discharge Temperature Protection of Compressor Status Cooling operation compressor stops while indoor fans runs Heating operation complete unit stops Faulty outdoor temperature sensor Refrigerant leak Poor airflow of outdoor unit Follow Troubleshooting procedure popa Start Troubleshooting Has the compressor discharge Is resistance of temperature E Replace sensor temperature reached 239 F sensor correct Yes Replace the outdoor unit circuit board Check the system for refrigerant leaks Repair evacuate and charge per instructions in C
115. le and the front panel Then remove the front grille 164 Disassembly of Neo Outdoor Unit 115v model Other models may vary slightly Warning Wait 10 minutes after power is disconnected before starting disassembly Remove connecting screws connecting the front panel with the chassis and the motor support and then remove the front panel 5 Remove right side plate i right side plate Remove connection screws connecting the right side plate with the valve support and the electric box Then remove the right side plate 6 Remove axial flow blade axial flaw blade Remove the nut attached to the blade and then remove the axial flow blade 165 Disassembly of Neo Outdoor Unit 115v model Other models may vary slightly Warning Wait 10 minutes after power is disconnected before starting disassembly 7 Remove motor and motor support motor support Remove the four tapping screws attached to the motor Pull out the lead out wire and remove the motor Remove the two tapping screws fixing the motor support Lift motor support to remove it 8 Remove electric box assembly Remove the two screws attached to the cover of the electric box Lift to remove the cover Loosen the wire and disconnect the terminal Lift to remove the electric box assembly AAA AA 9 Remove clapboard sub assembly Loosen the screws of the clapboard sub assembly The clapboard sub assembly has a hook on th
116. lem Status 1 Incorrect refrigerant charge Cooling operation compressor stops while 2 Metering device problem indoor fans runs Heating operation complete 3 Compressor failure unit stops Start Troubleshooting after unit is powered off for 20 minutes Is the overload protector positioned and wired correctly Under normal ambient conditions is the resistance of the overload less than 1000 ohms Replace Are the wires to the expansion Overload valve connected per the ber wiring diagram problem Resistance between the first 4 pins and the 5th pin should be less than 100 ohms Metering Device Replace coil of electronic Is system operating expansion valve normal Replace outdoor l APA control Is system working board properly Check Refrigerant for leakage and proper charge End Troubleshooting 148 F1 F5 Temperature Sensor Codes See troubleshooting chart next page F1 Fault amp Status Indoor ambient temperature sensor is open or short circuited Status During cooling amp dehumidifying indoor unit operates while other functions stop During heating operation complete unit stops Indoor evaporator temperature sensor is open or short circuited Status After reaching set point all components stop operation cooling and heating modes Outdoor ambient temperature sensor is open or short circuited Status Cooling operation compressor stops while indoor fans
117. lines longer than 25 feet refer to installation instructions chart included with the unit installation manual for additional charge 58 Refrigerant Charging Procedure Please refer to your units installation manual for proper charge If your lineset exceeds the chart below for your model additional charge may be required The charge must we weighed in with a refrigerant charging scale You can only add additional refrigerant to a new installation If a low or high charge is suspected you must reclaim the refrigerant then weigh in the correct amount per specifications including any additional for long linesets It is important to check for leaks before adding refrigerant 1 Determine addition refrigerant charge The Neo single zone units contain a factory charge adequate for up to a total length of refrigerant line as indicated in the chart below Additional refrigerant will need to be added for total lengths over the listed length Confirm the following chart with your installation manual for additional charge amounts NEOO9HP NEO12HP NEOO9HP NEO12HP 115V1AS 115V1AS 230V1AS 230V1AS Additional Charge 0 22 oz ft 0 22 oz ft 0 22 oz ft 0 22 oz ft Max Length without ft amp E Additional Charge At Zr hi i Factory Factory Charge Factory Charge INT OZ 45 502 5 OZ 4602 OZ TS OZ bench NEOISHP NEO24HP as MM 230V1AS 230V1AS a gm Additional Charge 0 22 oz ft 0 5 oz ft 0 5 oz INES 0
118. ling overload protects machine stopping 4 Power turn off If the Theating overload power turn off temperature lt Tinner pipe then overload protects machine stopping If Tinner pipe lt Theating overload frequency limited temperature and the compressor has been stopped working for 3 minutes the machine should be allowed to operate 5 If the overload protection power turn off continuously occurs for six times it should not be resumed automatically and you should press the ON OFF button to resume if the fault keeps on During the process of running if the running time of compressor exceeds the toverload protection times zero clearing time the times of overload protection power turn off should be cleared to recount The mode of stopping the machine or transferring to supply air will clear the trouble times immediately if the trouble cannot be resumed transferring mode will not clear it Protective function for discharge temperature of compressor 1 Starting estimation After the compressor stopped working for 180s if TDischarge lt TDischarge limited temperature the temperature of hysteresis is 35 6 F the machine is allowed to start otherwise it should not be started and should be stopped to treat according to the discharge temperature The machine should be stopped or transferred to supply air the trouble should be cleared immediately and the protection times are not counted 2 Frequency limited If TLimited freque
119. ll indicate the current fault The evaporator swing mo tors fan motors and circuit board are also components of the indoor unit The indoor units have a bypass switch to bypass the remote control if lost or batteries fail This will be explained later in this service manual The systems require R410A and are pre charged for 25 of lineset Please refer to your installation manual for additional charge for linesets longer than 25 he maximum allowable line lift and distances vary by model please refer to the charts in the manual for proper lineset applications The systems use a PVE oil and should require no ad ditional oil All Neo units utilize an Oil Return Mode hich will return oil to the compressor should the need arise Compressor Indoor Display Refrigeration Components Note Indoor Unit Temperature Sensor Electronic Expansion Valve Ss Accumulator Component locations may vary depending on models Outdoor Unit I9 I9AUT Compressor Temperature Sensor CES IIS if A MU ME 4 way High Pressure Switch 11 Cooling Mode Product Introduction Outdoor Unit Strainer AA Y YY Y 9 Indoor Unit Temperature Sensor 7L 7 TL 7 TTL STH Heat Electronic Exchanger Strainer PPP III TIN AS P A A AS E XX B iu 4 way valve Discharge Silencer
120. llation manual for current information 14 Product Introduction A Hot gas is discharged from the compressor The temperature of the gas in monitored by the Discharge Temperature sensor and sent to the outdoor control panel B The hot gas is directed through the 4 way valve to the appropriate indoor coil making the line a hot gas line C The hot gas will enter the indoor coil and condense to a saturated mix as it travel through the coil and will be slightly subcooled D The refrigerant returns to the outdoor unit through the filter then through the EEV reducing the refrigerant to a low pressure liquid and will maintain 10 degrees F of superheat E The cold refrigerant will travel through the outdoor coil evaporator and will pickup heat from the outdoor air This will cause the cold saturated refrigerant to flash to a saturated mixture which will be superheated to 10 degrees F F The superheated vapor will travel through the 4 way valve to the accumulator which will prevent liquid floodback G The superheated gas will enter the compressor for another refrigeration cycle he control board will monitor the temperature and pressures and adjust the frequency of the compressor and flow rate of the EEV as needed There are no pressure charts to evaluate temperature or pressures 15 Product Introduction Indoor Unit Components Neo 12 000 btuh model Other Neo models may very slightly Bin In l
121. mperature Tlow temperature cooling temperature the temperature can be set at 60 8 86 F Cooling at room temperature 2 If Toutdoor ambient temperature lt Tlow temperature cooling temperature the temperature can be set at 77 86 F Cooling at low temperature that is the minimum setting temperature for outer units judgment is 77 F 2 Drying Mode 1 Conditions and processes of drying operations Same as the cooling mode 2 The temperature setting range is 60 8 86 F 3 Air supplying Mode 1 The compressor outdoor fans and four way valves are switched off 2 The temperature setting range is 60 8 86 F 38 Basic Functions 18K amp 24K 230 volt 4 Heating Mode 1 Conditions and processes of heating operations Tindoor ambient temperature is the actual detection temperature of indoor environment thermo bulb A Theating indoor ambient temperature compensation is the indoor ambient temperature compensation during heating operations 1 If the compressor is shut down and Tindoor ambient temperature A Theating indoor ambient temperature compensation Tsetup x 32 9 F start the machine to enter into heating operations for heating 2 During operations of heating if 32 F lt Tindoor ambient temperature A Theating indoor ambient temperature compensation Tsetup 35 6 F the heating operation will be still running 3 During operations of heating if 35 6 F lt Tindoor ambient temperature A Thea
122. mperature the temperature of hysteresis is 35 6 F the machine is allowed to start otherwise it should not be started and cshould be stopped to treat according to the overload protection Clear the trouble at the mode of power turn off heating and the protection times are not counted 4 Product Introduction Basic Functions 18K amp 24K 230 volt 1 Frequency limited If Theating overload frequency limited temperature lt Tinner pipe lt Theating overload frequency reducing temperature at normal speed you should limit the frequency raising of compressor 2 Reducing frequency at normal speed and stopping machine If Theating overload frequency reducing temperature at normal speed lt Tinner pipe lt Theating overload frequency reducing temperature at high speed you should adjust the compressor frequency by reducing 8Hz 90s till the lower limit After it was running 90s at the lower limit if Theating overload frequency reducing temperature at normal speed lt Tinner pipe then overload protects machine stopping 3 Reducing frequency at high speed and power turn off If Theating overload frequency reducing temperature at high speed lt Tinner pipe lt Theating overload power turn off temperature you should adjust the compressor frequency by reducing 30Hz 90s till the lower limit After it was running 90s at the lower limit if Theating overload frequency reducing temperature at normal speed lt Touter pipe then Coo
123. mperature readings are the same the valve is fully open and the valve is not metering Since the pressures and frequency are controlled by the G10 technology of the outdoor circuit board there are no pressure checks that can be made Heating Mode p i i E To check the operation of the EEV Valve in heating mode using a digital thermometer record the tem perature of the input line and the output line of the valve as indicated in the picture above With the com pressor running the input side of the valve should have a higher reading then the output side indicating that the valve is metering If the temperature readings arethe same the valve is fully open and the valve is not metering Since the pressures and frequency are con trolled by the G10 technology of the outdoor circuit board there are no pressure checks that can be made Resistance readings of EEV valve with wire plug disconnected from circuit board Power to unit should be off when making resistance readings Readings below are approximate values and may vary slightly with different outdoor models EEV Q 94 6 O 94 8 O 94 4 Q 47 00 94 7 Q 94 4 0 47 50 94 6 0 47 7 0 47 4 QO 83 Troubleshooting Outdoor Components Cooling Mode a Rm 5 TNN gt Discharge Mo gt E a gt SN e a oa EA P UN i To Condenser pa ERAN 1 Coil Y N b ham Suction
124. n limit decrease the running frequency frequency limited or decrease Cooling outdoor fan motor compressor stop run ning indoor Fan mode fan works pes o protection Heating outdoor fan compressor indoor fan motor stop running Indoor unit air return is poor or fan speed is too low 1 The wire terminal of outdoor fan motor is loose repair connec tion 2 Motor damaged replace the motor 3 Fan motor module on mainboard is defective re place the main board AP1 113 Models NEO30HP230V1AS amp NEO36HP230V1AS Indicator has 3 kinds of display Malfunction Indicator Display during blink Possible Causes ing ON 0 5s and OFF 0 5s A C Status status and during blinking ON 0 5s and OFF 0 5s Operation Cool Heating Yalow nea Green Name High pressure protection of system Antifreezing protection System block or refrigerant leakage High discharge temperature protection of compressor Overcurrent protection 114 and blink and blink and blink 3 times and blink 4 times and blink 5 times and blink 3 times and blink 7 times and blink 5 times and blink 9 times During cool ing and drying operation except indoor fan oper ates all loads stop operation During heating operation the complete unit stops During cooling and drying oper ation compressor and outdoor fan stop while indo
125. n Heating mode all units stop Check for overcharge of refrigerant Check for correct voltage Check for dirty coils and filters T IS Troubleshooting Procedure for Synchronizing Fault after Unit is Started Start Troubleshooting after unit is powered off for 3 minutes Are the compressor terminal connected properly Yes Replace Control Board AP1 Compressor Wires Remove Malfunction Correct wiring problem Replace Compressor End Troubleshooting 156 H7 Error Code continued H7 Desynchronizing of compressor 1 Status During cooling mode compressor will stop indoor fan will run Heating mode all units stop Check the resistance of the compressor terminals and connections to the compressor Check for overcharge of refrigerant 3 Check for correct voltage Troubleshooting Procedure for Synchronizing Fault During Operation Start Troubleshooting Is the outdoor fan working properly Are wire connections Wire per diagram proper Yes Yes Are there any airflow obstructions Replace Fan Fan Operating Yes Capacitor C1 Properly Yes No MBm Replace Outdoor Fan Yes Motor No Correct voltage Is input voltage normal problem Yes Charge per Is unit overcharged installation manual Replace o Board Malfunction corrected Replace Compressor Yes End Troubleshooting 157 U1 U3 U5 U7 U9 Error Codes 158 Fault am
126. ncy temperature during discharging lt TDischarge lt Tfrequency reducing temperature at normal speed during discharging you should limit the frequency raising of compressor 42 Product Introduction Basic Functions 18K amp 24K 230 volt 3 Reducing frequency at normal speed and stopping machine If Tfrequency reducing temperature at normal speed during discharging lt TDischarge lt Tfrequency reducing temperature at high speed during discharging you should adjust the compressor frequency by reducing 8Hz 90s till the lower limit After it was running 90s at the lower limit if Tfrequency reducing temperature at normal speed during discharging lt TDischarge you should discharge to protect machine stopping 4 Reducing frequency at high speed and power turn off If Tfrequency reducing temperature at high speed during discharging lt TDischarge lt TStop temperature during discharging you should adjust the compressor frequency by reducing 30Hz 90s till the lower limit After it was running 90s at the lower limit if Tfrequency reducing temperature at normal speed during discharging lt TDischarge you should discharge to protect machine stopping 5 Power turn off If the TPower turn off temperature during discharging lt TDischarge you should discharge to protect machine stopping If TDischarge lt TLimited frequency temperature during discharging and the compressor has been stopped for 3 minutes the machine should be allowed
127. nd OFF 0 5s D40 D5 DA1 D6 D42 D16 D43 D30 dalli Cooling dehu midifying ex pect the indoor fan motor is running others will stop to run Heating all stop running Cooling de humidifying compressor outdoor fan motor will stop running indoor fan motor will keep running Cooling dehu midifying ex pect the indoor fan motor is running others will stop to run Heating all stop running Cooling dehu midifying ex pect the indoor fan motor is running others will stop to run Heating all stop running i 1 Refrigerant is too much 2 Poor heating exchanging for units in cluding heat exchanger is dirty and unit heating radiat ing ambient is poor Ambient temp is too high 1 Poor indoor unit air return ing 2 Indoor fan motor rotating speed abnormal 3 Evaporator is dirty Please refer to trouble shoot air exhaust protection overload 1 Power supply is stable fluc tuation is too much 2 Power supply is too low overload is too much Models NEO18HP230V1AS amp NEO24HP230V1AS Indoor Unit Displaying Method Outdoor Unit Display LED isifaned Indicator Display during blink Indicator has 3 kinds of display status and alfunction ing ON 0 5s and OFF 0 5s during pr Dare 0 5s and OFF 0 5s A C Status Malfunctions ame Indoor and outdoor units com munication malfunction Anti high temp protec tion Indoor unit motor no
128. nergize change the communication wire of the working communication indoor unit and malfunctioning non communicating indoor unit then energize the unit and wait for 3 minutes The malfunction Replace outdoor main board indoor unit resumes normal Yes Replace the main board of the malfunctioning indoor unit End Troubleshooting 146 QUEE Error Code Diagnostics E6 Error Code continued Communication Failure of All Indoor Units Communication failure of all indoor units De energize check the wire connections of indoor and outdoor units and power to outdoor unit N i Yes Are all connections correct Correct connections pig ils cone problem No De energize check the wire connection between the outdoor main board and the filter board for correctness No Did this correct the Yes Are all connections correct Correct connections problem Did this correct the Correct connections problem No Is the connection wire broke Check to see if there is power input between the neutral wire and live wire of the outdoor main board The malfunction indoor unit resumes normal No cone Replace the filter board of Did this correct the Yes ESSE the outdoor unit problem No Replace the outdoor main board No l Replace the indoor main Are units now communicating board Yes End Troubleshooting 147 E8 Error Code Overload System Protection Problem E8 Overload System Protection Prob
129. ng the machine or transferring to supply air will clear the trouble times immediately if the trouble cannot be resumed mode transferring will not clear it 40 Product Introduction Basic Functions 18K amp 24K 230 volt 5 Overload protection function Overload protection function at the mode of Cooling and dehumidifying 1 Starting estimation After the compressor stopped working for 180s if Touter pipe lt TCooling overload frequency limited temperature the temperature of hysteresis is 35 6 F the machine is allowed to start otherwise it should not be started and should be stopped to treat according to the overload protection Clear the trouble at the mode of power turn off heating and the protection times are not counted 2 Frequency limited If TCooling overload frequency limited temperature lt Touter pipe lt TCooling overload frequency reducing temperature at normal speed you should limit the frequency raising of compressor 3 Reducing frequency at normal speed and power turn off If TCooling overload frequency reducing temperature at high speed lt Touter pipe TCooling overload power turn off temperature you should adjust the compressor frequency by reducing 8Hz 90s till the lower limit After it was running 90s at the lower limit if TCooling overloadfrequency reducing temperature at normal speed lt Touter pipe then Cooling overload protects machine stopping 4 Reducing frequency at high speed and
130. ng will be re counted from the time at which the system is powered again If timing is set by the last remote control command and timing of start or stop is reached before power failure the system as powered on again will memorize operation state before power failure and will not perform timing action Moment timing is out the range of memory 9 Locked Protection When starting up the fans if the motor has run at a lower speed continuously for a period for preventing automatic protection of the motor stop running and display the locked operation if the machine is running at present the code of the locked fault H6 of double eight digital tubes will be displayed if the machine is shut down at present the information of the locked fault will not be displayed 10 Super Power Function In cooling and heating modes automatic dehumidifying and air supplying modes are without strong power press the button of Super Power the wind speed on the remote controller is displayed as super high air flow and the inner fans are also turned to super high air flow 11 Health Function When the inner fans are running the remote controller is set at the Health function at this time if there is no Health button on the remote controller the Health On order is defaulted then start the Health function device 3 Fault Detection of Thermo bulb 1 Indoor Environment Thermo bulb Detect the fault of thermo bulb at any time 2 Indoor Pipe Tem
131. normally while operation frequen cy for compressor is decreased All loads operate normally while operation frequen cy for compressor is decreased During cooling and drying oper ation compressor will stop while indoor fan will operate During heating operation the complete unit will stop opera tion Possible Causes The input supply voltage is too low System pressure is too high and overload Overload or temperature is too high Refrigerant is insufficient Malfunction of electric expansion valve EKV Poor air return in indoor unit or fan speed is too low 1 Measure the voltage of position L and N on wiring board XT if the voltage is higher than 150VAC turn on the unit after the supply voltage is increase to the normal range 2 If the AC input is normal measure the voltage of electrolytic capac itor C on control panel AP1 if its normal theres malfunction for the circuit please replace the control panel AP1 Models NEO30HP230V1AS amp NEO36HP230V1AS Malfunction Voltage of DC bus bar is too Compressor Min frequen cy in test state Compressor rated frequen cy in test state Compressor maximum frequency in test state Indicator Display during blink ing ON 0 5s and OFF 0 5s blinking in cool mode ON 0 25s and OFF 0 25s blinking in cool mode ON 0 25s and OFF 0 25s blinking in cool mode ON 0 25s and OFF 0 25s blinking in h
132. ns next page Mode Icon Lock Icon Light Icon Sleep Icon Temp Icon Up amp Down Swing Icon Left amp Right Swing Icon Set Time Display Digit Display Fan Speed Display Replacing Batteries proe s pec 54 Locate the battery cover on the back of the remote Remove the small screw at the bottom of the cover Slide the cover downward Replace with two AAA batteries Replace cover and screw TURBO AIR HEALTH X FAN D ENCL JEL ati maze e p Product Introduction Remote Controller Functions 1 On Off Press this button to turn unit on or off 2 Mode Press the Mode button to change from Auto Cool Dry Fan or Heat Pump 3 Lower Temperature Setting Each time you press the button the temperature setting will lower by 1 F Hold button down for 2 seconds to rapidly decrease setting The temperature range is 61 F 86 E In Auto Mode this button will not function 4 Raise Temperature Setting Each time you press the button the temperature setting will raise by 1 F Hold button down for 2 seconds to rapidly increase setting The temperature range is 61 F 86 E In Auto Mode this button will not function 5 Fan Switch The fan switch will adjust the fan speed between Auto Low Medium and High 6 Sy Swing Button 4 Press this button to stop or start the up down swing function Press the and Swing button together will switch between static and
133. of Outdoor Unit 24K 240 volt unit Warning Wait 10 minutes after power is disconnected before starting disassembly 4 Remove front side plate and front pane Remove screws connecting front side plate outer case and chassis and the remove the front side plate Remove screws connecting front panel chassis and motor support and then remove the front panel a l ZAH 5 Remove right side plate Remove screws connecting right side plate and chassis valve support and condenser and then remove the right side plate 185 Disassembly of Outdoor Unit 24K 240 volt unit Warning Wait 10 minutes after power is disconnected before starting disassembly 6 Remove axial flow fan blade a at Remove nut on blade with wrench and then re move the axial flow blade axial flow blade 7 Remove electric box and shield ul 3 p pem ME EEE ERE ER CANA a A Remove screws connecting electric box cut off the tie line with scissors pull out the wiring terminal and then lift up the electric box to remove it Twist off the screws on fireproof electric box and then remove the fireproof electric box 8 Remove motor and motor support Remove the tapping screws connected to the motor pull out the pin of leading wire for motor and then remove the motor motor support 186 Disassembly of Outdoor Unit 24K 240 volt unit Warning Wait 10 minutes after power is disconnected before starting
134. of compress or is fine when it is not over heated if not replace the protector 6 System malfunction Overload protection When tube temperature Check the temperature of outdoor heat exchanger when cooling and check the temperature of indoor heat exchanger when heating is too high protection will be activated Possible reasons Outdoor temperature is too high when cooling insufficient outdoor air circulation refrigerant flow malfunction Please refer to the malfunction analysis in the previous section for handling method 7 IPM module protection Processing method Once the module malfunction happens if it persists for a long time and can not be self canceled cut off the power and turn off the unit and then re energize the unit again after about 10 min After repeating the procedure for sever times if the malfunction still exists replace the module 127 Troubleshooting Capacitor Charging Fault Use AC voltmeter to check proper voltage on terminals IL amp N on the terminal board Voltage should be within 10 of voltage on nameplate e Is the reactor L correctly connected Check for damaged reactor Turn unit on and wait 1 minute Use a DC voltmeter to measure the voltage on the Yes Faulty AP two terminals of the electrolytic capacitor Replace the AP control panel Is voltage higher than 200 v Measure the AC voltage between terminals L amp N on the board XT power supply Is voltage within
135. oller Compressor running too hot stops and starts frequent Measure incoming power Should prop g be within 10 of nameplate Refer to charging procedures check for leaks if charge is low Refrigerant Incorrect refrigerant charge must be weighed in by using a charging scale pressure charts are not available Check U V W wire connections as well as all power connection to and from board and components Poor component wiring connections uum Check resistance of compressor ompressor maltunction windings using a megohm meter Check for unusual noise within compressor 136 Compressor Overload Discharge protection malfunction Start Is the Overload connections OK No Yes Check the resistance between the two ends of the overload protector in ambient temperature Is the resistance below 1K Is the wiring of the electronic expansion valve connected well Yes Replace the overload protector Check the coil of the electronic expansion Reconnect according to the wring diagram valve per instructions in this manual Replace if faulty Eliminate the malfunction No Check the refrigerant status if there is leakage recharge according to this service manual Eliminate the malfunction No Replace outdoor main board End Troubleshooting 157 Troubleshooting Compressor Desynchronizing Malfunction The unit appears to be desynchronizing as soon as energized and starting
136. oming voltage If AC voltage is normal measure the voltage on the electrolytic capacitor on control panel AP1 if it is normal replace the AP1 board During cooling mode compressor will stop indoor fan will run Heating mode all units stop 1 Refer to H7 troubleshooting During heating mode complete unit will stop During cooling mode compressor will stop 1 Replace outdoor control panel AP1 indoor fan will run Heating mode all units 1 After unit is de energized for 20 minutes check for proper thermal grease on IPM During cooling mode compressor will stop module of outdoor control panel AP1 and indoor fan will run Heating mode all units contact is good If this is OK replace AP1 stop control module of outdoor unit 159 PU Error Code Capacity Charging Malfunction PU Charging Malfunction of Capacitor Status During cooling mode compressor will stop indoor fan will run Heating mode all units stop Start Troubleshooting after unit is powered on for 1 minute Use a DC voltmeter to measure the voltage across the terminals of the electrolytic capacitor The detection Yes d circuit of the Voltage higher than 100v outdoor mainboard has malfunctioned Check if the inductor wiring is loose or induction is cut off Shut down power and wait 20 minutes or connect a DC voltmeter _Y8s Replace the inductor to the electrolytic capacitor until the or reconnect wires voltage is less t
137. onnect not reliable tem times perature sensor malfunction malfunction Outdoor tube temperature sensor malfunction Automatic defrosting Outdoor exhaust m terminal connect not reliable in temperature sensor Mies temperature sensor malfunc malfunction tion blink 2 Hl is not error code it is normal operation just heat pump has this times function REMARK 1 Error codes only can be seen in the type which has the temperature display PCB maybe some type has not this function the lamps on the outdoor PCB are available 2 Normally the communication between indoor unit and outdoor unit is successful the gree lamp 94 Models NEO09HP230V1AS amp NEO12HP230V1AS Malfunc tion Name High pressure protection of system Anti freezing protection System block or refrig erant leakage High discharge tem perature protection of com pressor Over current protection Indicator Display during blinking ON 0 5s and OFF 0 5s OFF 3S and blink once OFF 3S and blink twice Off 3S and blink 4 times Off 3S and blink 5 times Off 3S and Off 3S and blink 3 times Indicator has 3 kinds of display status and during blinking ON 0 5s and OFF 0 5s blink 3 times Off 3S and blink 9 Off 3S and blink 7 times Off 3S and blink 5 times A C Status During cooling and drying operation except indoor fan op erates all loads
138. onnection pipe of liquid valve and then remove the liquid valve F ow E 4 ar liquid valve 13 Remove compressor EX T reo a3 k L Tu E ARE I J FPE I 1 Le EL Remove the three foot nuts on the compressor and WT f compressor then remove the compressor D SS a ana xd UR ER LR ER E A Ra iy E Lo LI L i ME i SIS Para llt ug ZEE i 4 14 Remove isolation sheet Remove the screws connecting isolation sheet and isolation sheet end plate of condenser and chassis and then re move the isolation sheet 203 Disassembly of Outdoor Unit 36K 240 volt unit shown other models may vary slightly Warning Wait 10 minutes after power is disconnected before starting disassembly 15 Remove motor and motor support Remove the screws connecting the support plate of condenser and condenser with screwdriver and then suppart plate of condenser remove the support plate of condenser 16 Remove 4 way valve condenser Pull it upwards to separate the chassis and condens er chassis 204 Appendix 1 Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor Units 15K Temp Temp Temp Temp Temp Temp C F C F C F 19 22 fsi 33 914 1063 85 1850 1 594 18 04 fise 34 932 102 f 86 1868 1544 17 fra l6 35 950 9779 fsz 1886 1497 16 32 f
139. oo high and over load Overload or tem perature is too high Refrigerant is insuf ficient Malfunction of electric expansion valve EKV Poor air return in indoor unit or fan speed is too low Models NEO09HP230V1AS amp NEO12HP230V1AS Indicator has 3 kinds of Indicator Display during blinking ON display status and during blinking ON 0 5s and OFF Operation Coot Heating Yalow Red Green Malfunction A C Status Possible Causes 0 5s and OFF 0 5s Name During cooling 1 Measure the voltage and drying of position L and N on operation wiring board XT if the compressor voltage is higher than will stop while 150VAC turn on the unit indoor fan after the supply voltage Voltage of Off 3S and DC bus bar blink 11 and blink During heating range 2 If the AC input is too high times 13 times operation will operate is increase to the normal is normal measure the the complete voltage of electrolytic unit will stop capacitor C on control operation panel AP1 if its normal theres malfunction for the circuit please replace the control panel AP1 During cooling 1 Measure the voltage and drying of position L and N on operation wiring board XT if the compressor voltage is higher than will stop while 150VAC turn on the unit indoor fan after the supply voltage Voltage of Off 3S and DC bus bar blink 21 and blink will operate is increase to the normal During heating r
140. or fan operates The Dual 8 Code Display will show E3 until the low pressure switch stop operation During cooling and drying oper ation compressor and outdoor fan stop while indoor fan operates During heating operation all loads stop During cooling and drying oper ation compressor and outdoor fan stop while indoor fan operates During heating operation all loads stop Possible reasons 1 Refrigerant was superabundant 2 Poor heat ex change including filth blockage of heat exchanger and bad radiating environment Ambient tempera ture is too high 1 Poor air return in indoor unit 2 Fan speed is abnormal 3 Evap orator is dirty 1 Low pressure protection 2 Low pressure pro tection of system 3 Low pressure protection of com pressor Please refer to the malfunction analysis discharge protection over load 1 Supply voltage is unstable 2 Sup ply voltage is too low and load is too high 3 Evapora tor is dirty Models NEO30HP230V1AS amp NEO36HP230V1AS Malfunction Name Communica tion Malfunc tion High tem perature resistant protection EEPROM malfunction Limit decrease frequency due to high temperature of module Indicator Display during blink ing ON 0 5s and OFF 0 5s Operation Cool Heating Yalow nea Green Off 3S and blink 6 times Off 3S and blink 11 times Off 3S and blink 15 times O
141. or feet then remove the compressor 13 Remove left side plate Remove the screws connecting the left side plate and chassis then remove the left side plate ITE Bot ie ie be et AA oi 188 Disassembly of Indoor Unit 36K 240 volt unit shown other models may vary slightly Warning Wait 10 minutes after power is disconnected before starting disassembly 1 Before disassembly Assembled indoor unit 2 Remove filter Open the panel LEE ea ee Se Se ee eee m Loosen the clasps on the filter ULES ire IS Remove filters a j 33 EE Th 189 Disassembly of Indoor Unit 36K 240 volt unit shown other models may vary slightly Warning Wait 10 minutes after power is disconnected before starting disassembly 3 Remove display display Remove two screws attached to display and then remove the display 4 Remove panel Pull the clasps at both sides slightly and then re move the panel 5 Remove horizontal louver Remove the axial bush on the horizontal louver and then remove the horizontal louver horizontal louver 190 Disassembly of Indoor Unit 36K 240 volt unit shown other models may vary slightly Warning Wait 10 minutes after power is disconnected before starting disassembly 6 Remove top cover of electric box Remove screws connecting the top cover of the electric box Remove the top cover of electric box 7 Remove f
142. orator temperature sensor is open short circuited 116 Off 3S and blink 15 times Off 3S and blink 1 times and blink 1 times Off 3S and blink 1 times Off 3S and blink twice Wireless remote receiver and button are effec tive but can not dispose the related command When the outdoor unit receives signal of gather ing refrigerant the system will be forced to run under cooling mode for gather ing refrigerant During cooling and drying oper ating compressor stops while indoor fan operates During heating operation the complete unit will stop operation AC stops opera tion once reach es the setting temperature Cooling drying internal fan motor stops operation while other loads stop operation heating AC stop operation 1 No jumper cap insert on main board 2 Incorrect insert of jumper cap 3 Jumper cap damaged 4 Ab normal detecting circuit of main board Nominal cooling mode 1 Loosening or bad contact of indoor evapora tor temp sensor and mainboard terminal 2 Com ponents on the mainboard fall 3 Indoor evapora tor temp sensor damaged 4 Main board damaged 1 Loosening or bad contact of indoor evapora tor temp sensor and mainboard terminal 2 Com ponents on the mainboard fall 3 Indoor evapora tor temp sensor damaged 4 Main board damaged Models NEO30HP230V1AS amp NEO36HP230V1AS Malfunction Ind
143. orking conditions and process of cooling When Tamb 2Tpreset the unit will enter cooling operation in which case the indoor fan the outdoor fan and the com pressor will workand the indoor fan will run at preset speed When Tamb Tpreset 3 6 F the compressor will run in 15Hz for continuous 15 minutes if Tamb Tpreset 3 6 F is not changed after that the compressor will stop to run When Tamb lt Tpreset 5 4 F the compressor will stop to run the outdoor fan motor will stop to run after 30 seconds and the indoor fan motor will run at set fan speed When Tpreset 3 6 F Tamb Tpreset the unit will keep the previous running status Under this mode the four way valve will be de energized and temperature can be set within a range from 61 to 86 F If the compressor is shut down for some reason the indoor fan and the swing device will operate at original state 2 Protection Antifreeze protection Under cooling and dehumiditying mode 6 minutes after the compressor is started If T evap lt 35 6 F the compressor will operate at reduced frequency If T evap lt 30 2 F is detected for durative 3 minutes the compressor will stop and after 30 seconds the outdoor fan will stop and under cooling mode the indoor fan and the swing motor will remain at the original state If T evap 250 F and the compressor has remained at OFF for at least 3 minutes the compressor will resume its original operation state Total current up and frequency do
144. ormality protection for four way valve 3 min and if it still cant run when the reversion abnormality protection for four way valve happens to stop working for 3 times in succession it is available if presses ON OFE Attention the protection shall be shielded during the testing mode and defrosting process and it shall be cleared out the failure and its times immediately when turning off or delivering wind cooling dehumidifying mode conversed the inverted mode dont clear out the failure when it cant recover to operate 16 PFC Protection 1 After start up the PFC it should detect the protection signal of PFC immediately under the condition of PFC protection it should turn off the PFC and compressor at one time 2 It shows the failure is cleared out if PFC Protection stopped working 3 min and recovers to run automatically 3 If it still cant run when it occurs PFC protection for 3 times in succession it is available if presses ON OFF and clear the PFC Protection times when start up PFC for 10min 46 Product Introduction Basic Functions 18K amp 24K 230 volt 17 Failure Detection for Sensor 1 Outdoor Ambient Sensor detect the failure of sensor at all times 2 Outdoor Tube Sensor You should not detect the failure of outdoor tube sensor within 10 minutes heating operation compressor except the defrosting and you could detect it at other time 3 Outdoor Exhaust Sensor a The compressor only detect the sensor failure after it s
145. ove axial sleeve of horizontal louver Bend the louver outwards and then remove the louver Loosen the screws of the electric box cover 2 with screwdriver Remove the electric box cover 2 Open the screw cap on the front case Remove the screws fixing the front case Loosen the six clasps of the front case Remove the front case 168 Disassembly of Indoor Unit 9K 240 volt unit models may vary slightly Warning Wait 10 minutes after power is disconnected before starting disassembly 4 Remove electric box assembly Remove the screws of the electric box assembly Remove the screws at the joint of the earthing wire and evaporator Loosen the clasp at the joint of the electric box cover and electric box Remove the two screws on the display Remove the electric box assembly i Electric Box Assy 5 Remove evaporator Remove the screws of the press plate of the con necting pipe Remove press plate of the connecting pipe Remove the three screws at the joint of the evapo rator and rear case Adjust slightly the pipe on the evaporator Remove the evaporator 169 Disassembly of Indoor Unit 9K 240 volt unit models may vary slightly Warning Wait 10 minutes after power is disconnected before starting disassembly 6 Remove Panel Remove the screws of step motor and then remove the motor Remove the screw of the motor press plate and then remove the press plate Remove the screws at th
146. p Status Compressor Phase Detection Error Status During cooling mode compressor will stop indoor fan will run Heating mode all units stop DC Bus Bar Voltage Unstable Status During cooling mode compressor will stop indoor fan will run Heating mode all units stop Circuit Board Malfunction on Outdoor Unit Status During cooling mode compressor will stop indoor fan will run Heating mode all units stop Reversing Valve Malfunction Status During heating mode complete unit will stop Zero crossing malfunction of Outdoor Unit Status During cooling mode compressor will stop indoor fan will run Heating mode all units stop Possible Causes 1 Replace outdoor control panel AP 1 1 Supply voltage is unstable 1 Replace outdoor control panel AP1 Supply voltage is too low 2 Wiring terminal on reversing valve is loose or broken 3 Replace reversing valve 1 Replace outdoor control panel AP1 PH PL P5 P7 P8 Error Codes Fault amp Status Possible Causes Measure the voltage on L amp N on line voltage if it is higher then 265vac correct high voltage If AC voltage is normal measure the voltage on the electrolytic capacitor on control panel AP1 if it is normal replace the AP1 board During cooling mode compressor will stop indoor fan will run Heating mode all units stop Measure the voltage on L amp N on line voltage if it is lower then 200vac correct inc
147. peed Within one minute low speed operation if Ttube gt 104K the indoor fan will be converted to preset speed Note Tindoor amb indicated in X and M 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 e Total current up and frequency down protection If the total current Itotal 16A frequency rise will be allowed if Itotal gt 17A frequency rise will not be allowed if Itotal 18A the compressor will run at reduced frequency and if Itotal 20A the compressor will stop and the outdoor fan will stop with a time lag of 60s 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 o Under the mode temperature can be set within a range of 61 86 F 5 AUTO Mode A Working conditions and process of AUTO mode Under AUTO mode standard cooling temperature Tpreset is 77 F and standard heating temperature Tpreset is 68 F a Once energized if Tamb lt 71 6 F the unit will be started under heating mode if 71 6 F lt Tamb 78 8 F the unit will run under fan mode and the run indicator will be bright and if Tamb gt 78 8 F the unit will be started under cooling mode b Under AUTO mode if Tamb gt Tpreset 1
148. peration the complete unit will stop operation During cooling and dry ing operating compres sor stops while indoor fan operates During heating operation the complete unit will stop operation Possible Causes 1 Loosening or bad contact of indoor evaporator temp sensor and mainboard terminal 2 Compo nents on the main board fall 3 Indoor evaporator temp sensor damaged 4 Mainboard damaged 1 Loosening or bad contact of indoor evaporator temp sensor and mainboard terminal 2 Compo nents on the main board fall 3 Indoor evaporator temp sensor damaged 4 Mainboard damaged Outdoor temperature sensor hasn t been connected well or is damaged Please check it by referring to the resistance table for temperature sensor Outdoor temperature sensor hasn t been connected well or is damaged Please check it by referring to the resistance table for temperature sensor 97 Models NEO09HP230V1AS amp NEO12HP230V1AS Malfunction Name Outdoor discharge temperature sensor is open short circuited Limit decrease frequency due to overload Decrease fre quency due to overcurrent Decrease frequency due to high air discharge Limit decrease fre quency due to anti freezing 98 Indicator has 3 kinds of dis Indicator Display during blink ing ON 0 5s and OFF 0 5s Operation Cool Heating Yellow rea on uu nm Off 3S and bl
149. perature Thermo bulb During the defrosting period the fault of the thermo bulb will be not detected which shall be detected in 5 minutes after defrosting is completed the fault of the thermo bulb will be detected at other times 3 Protecting Treatments of Thermo bulb 1 When the thermo bulb is detected to be short circuited continuously for 30 seconds It is regarded that the temperature detected by the thermo bulb is over high or unlimited then the whole machine will exert corresponding safety stops according to the over high temperature sensed by the thermo bulb and display corresponding temperature safety stops and faults of the thermo bulb simultaneously Basic Functions 18K amp 24K 230 volt Product Introduction _ Basic Functions 18K amp 24K 230 volt 2 When the thermo bulb is detected in open circuit continuously for 30 seconds stop the machine in protection directly display corresponding faults of the thermo bulb 3 Forced Running Function of the Indoor Units 1 Enter into Forced Running Control Within 5 minutes after power up press the Lights Off button on the remote controller continuously for three times within 3 seconds to enter into the fluorine collecting mode and display Fo send the fluorine collecting mode for 25 minutes continuously each load will be treated as cooling when starting the machine set the air flow as High set the temperature as 60 8 F 2 Exit from the Forced Running Control After r
150. pressor Winding Resistance Check easy removal Remove the compressor wires from the AP1 circuit board The wires red to yellow yellow to blue amp red to blue should have readings from 2 4 ohms There should be no reading from any wire to chassis ground If the read ings between the windings differ greatly the windings are bad If there is a reading from any wire to the chassis there is leakage in the windings The reactor filters out electrical noise and transient voltage spikes to the control board There will be a reading of less than 1 Q after the wires are removed There should be no reading from either reactor terminal to ground 86 Troubleshooting Outdoor Components Outdoor Motor Winding Resistance Check Disconnect power to the unit all reading are made with no power and fan motor wires disconnected from circuit board Remove the white and orange wire from the reactor and then disconnect the plug from the circuit board The chart below will indicate the approximate resistance values in ohms Readings may vary slightly for different models This is a DC brush less motor resistance readings may vary with meters Plugging a know good motor in the board would provide a quick troubleshooting technique Motor Leads Blue Yellow Black White Red Negative Meter Lead this color 87 roozt LY WYL wsz H 008 Reactor Resistance Check The line reactor helps to smooth the inrush current reduce harmonics and noise
151. r ambient or set temperature 20 Up Down Swing Icon Indicates if indoor unit is in up amp down swing function 21 Left Right Swing Icon Not on all models Indicates if indoor unit is in left amp right swing function 22 Set Time Display After pressing the timer button this will display the set time 56 Product Introduction Remote Controller Functions 23 Digital Display This area will show the set temperature In save mode SE will be displayed 24 Fan Speed Display The fan speed will be displayed in this area except the Auto mode Auto Button Manual Override Located on indoor unit In the event the controller is missed placed or the batteries are defective this will override the remote controller If the controller is on pressing this button will stop it if it is off pressing the button will turn the controller on When turning the controller on the swing and light will be on and the unit will run in Auto Mode 57 Refrigerant Lines Preparation amp Connection The refrigerant lines should be kept sealed until ready to be connected Follow the following steps to insure a quality leak proof installation Step 1 Refrigerant Line Connection Carefully bend and cut the tubing to prepare for flaring Use a flaring tool designed for R410a following the recommended manufacturer s procedure Tighten the flare nut to the indicated torque by using a spanner wrench and a toque wrench
152. r remote controller the buzzer will give out a beep 4 Sleep Function 1 Cooling mode 1 1 When initial ial set temperature range is 61 73 F if turning on sleep function temperature will increase 1 8 F for every hour After 5 4 F has been increased the temperature will not change 7 hours later temperature will decrease 1 8 F After that the unit will keep operating at that temperature 1 2 When initial set temperature range is 75 81 F if turning on sleep function temperature will increase 1 8 F for every hour After 3 6 F has been increased the temperature will not change 7 hours later temperature will decrease 1 8 F After that the unit will keep operating at that temperature 1 3 When initial set temperature range is 82 84 F if turning on sleep function temperature will increase 1 8 F for every hour After 1 8 F has been increased the temperature will not change 7 hours later temperature will decrease 1 8 F After that the unit will keep operating at that temperature 1 4 When initial set temperature is 86 F the unit will operate at that temperature 7 hours later temperature will decrease 1 8 F After that the unit will keep oper ating at that temperature 2 Heating mode 2 1 When initial set temperature is 61 F the unit will operate at that temperature 2 2 When initial set temperature range is 63 68 F if turning on sleep function temperature will decrease 1 8 F for every hour After 1 8 F has been decre
153. re of outdoor heat exchanger under cooling mode and measure temperature of indoor heat exchanger under heating mode 1 Cooling overload a If Ttube lt 126 F the unit will return to its original operation state b If Ttube gt 131 F the frequency rise is not allowed c If Ttube gt 136 F the compressor will run at reduced frequency d If Ttube gt 144 F the compressor will stop and the indoor fan will run at preset speed 2 Heating overload a If Ttube 126 F the unit will return to its original operation state b If Ttube gt 131 F the frequency rise is not allowed c If Ttube gt 136 F the compressor will run at reduced frequency d If Ttube gt 144 F the compressor will stop and the indoor fan will run at preset speed B Exhaust temperature protection of compressor If exhaust temperature gt 208 F frequency is not allowed to rise If exhaust temperature gt 217 F the compressor will run at reduced frequency If exhaust temperature gt 230 F the compressor will stop If exhaust temperature 194 F and the compressor has stayed at stop for at least 3 minutes the compressor will resume its operation C 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 D Module protection Under module protection mode the compressor will stop When the compressor remains at stop for at least 3 min
154. rence between these readings A temperature reading higher than 10 degrees may indicate a leaky valve not fully shifter or a block age in the valve Be sure all power is off to the unit Remove the plug connecting the 4 way vale to the circuit board Check the resistance with an ohmmeter The reading should indicate 1 8k O If the reading is infinite replace the solenoid coil 84 Troubleshooting Outdoor Components Temperature Sensor Using a glass of ice water place the sensor into the glass with a digital thermometer Wait a few minutes for the reading to stabilize Compare the readings to the sensor tables in Appendix A it the reading are not compara ble replace the sensor When replacing the sensor be sure to fasten the sensor securely if it is attached to a tube o 320 14902 152 1256 4986 fioa 2192 0898 pss 1274 aso fios 2210 08735 2 356 4431 54 1292 465 fios 2228 0848 3 a4 214 55 i310 esse 107 2246 085 a 392 14009 56 1328 4294 fios 2264 osoz 5 Jao 3815 57 1346 4139 6 48 3632 58 i364 399 we xs2 0 779 7z 46 13458 59 1382 fasas fiu 28318 0737 464 329 feo 1400 3711 9 482 3138 fei i418 3579 85 Troubleshooting Outdoor Components e E e m Mae rr US Compressor Windings je a E Red Yellow amp Blue Wires I Slightly depress tab for Com
155. ressor and outdoor fan will operate Frequency for defrosting is 85Hz 3 Protection Cold air prevention The unit is started under heating mode the compressor is ON 1 In the case of T indoor amb lt 75 2 F if T tubex104 F 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 104 F 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 nonoperation if T tube gt 107 6 F the fan will run at present speed 2 In the case of T indoor amb 275 2 F if T tubex107 6 F the indoor fan will run at low speed and after one minute the indoor fan will be converted to preset speed Within one minute low speed operation if T tube gt 107 6 F the indoor fan will be converted to preset speed Note T indoor amb indicated in1 and 2 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 27 Basic Functions 9K amp 12K 230 volt 28 Total current up and frequency down protection When total current Itotal lt 6A increase frequency is allowed when total current Itotal 7A increasing frequency is prohibited
156. ring heating operation the com plete unit will stop operation DC fan motor malfunction or system blocked or the connector loosed To protect the electronic components when detect high power Indoor unit and outdoor unit doesn t match Refer to the mal function analysis Replace outdoor control panel API Supply voltage is unstable 103 Models NEO09HP230V1AS amp NEO12HP230V1AS Malfunction Name Malfunction of complete units current detection The four way valve is abnor mal Zero crossing malfunction of outdoor unit Frequency limiting power Compressor is Open cir cuited The tem perature for turning on the unit is reached 104 Indicator Display during blink ing ON 0 5s and OFF 0 5s Off 3S and blink 13 times Off 3S and blink 20 times Off 3S and blink 18 times Indicator has 3 kinds of display status and during blinking ON 0 5s and OFF 0 5s and blink 8 times A C Status During cooling and drying oper ation compressor will stop while indoor fan will operate During heating operation the complete unit will stop opera tion If this malfunction occurs during heating operation the complete unit will stop opera tion During cooling and drying oper ation compressor will stop while indoor fan will operate During heating operation the complete unit will stop opera Possible Causes There
157. ront case Remove the screw caps on front case avec MEE R 1 Remove the screws connecting the front case AE Remove the front case 191 Disassembly of Indoor Unit 36K 240 volt unit shown other models may vary slightly Warning Wait 10 minutes after power is disconnected before starting disassembly 8 Remove ground wire Remove grounding screws and then remove the grounding wire 9 Remove electric box cover Loosen clasps at the left side of electric box Loosen clasps on the right side of the electric box Remove electric box cover 192 Disassembly of Indoor Unit 36K 240 volt unit shown other models may vary slightly Warning Wait 10 minutes after power is disconnected before starting disassembly 10 Remove temperature sensor Pull out the indoor temperature sensor 11 Remove electric box Pull out six sockets on PCB board Pull out two screws on electric box Remove the electric box 195 Disassembly of Indoor Unit 36K 240 volt unit shown other models may vary slightly Warning Wait 10 minutes after power is disconnected before starting disassembly 12 Remove display water tray Pull the water tray upwards and then remove the a water tray 13 Remove panel Separate the connection pipe between indoor and outdoor units connection position for indoor and outdoor units connection pipe 14 Remove horizontal louver Remove two screws on pip
158. rotation speed for a continuous period of time after startup the unit will stop opera tion and display H6 15 Compulsory Defrosting Function When the outdoor environment is formidable such as temperature is too low and humidity is too high and there is too much frost in outdoor unit which affect the heating effect users can select compulsory defrosting function to outdoor units heating effect on method When the unit is turned on in heating mode by remote controller and the set temperature is 61 F press buttons for 5s successively indoor unit will enter into compulsory defrosting setting and send the compulsory defrost ing mode signal to outdoor unit and then outdoor unit will enter into compulsory defrosting mode Product Introduction Left Intentionally Blank pa Basic Functions 9K amp 12K 230 volt Indoor preset temperature Tpreset Indoor ambient temperature Tamb 2 Basic Functions Once energized in no case should the compressor be restarted within less than 3 minutes In the situation that memory functionis available for the first energization if the compressor is at stop before de energization the compressor will be started without a3 minute lag if the compressor is in operation before de energization the compressor will be started with a 3 minute lag and oncestarted the compressor will not be stopped within 6 minutes regardless of changes in room temperature 1 Cooling Mode 1 W
159. rt Temperature Sensor Troubleshooting Is the sensor wire plug loose from the AP2 board No Is there a short or open circuit in the wire or sensor No Do the temperature sensor readings compare to the resistance table in the Appendix Yes Replace the controller with the same part number End Troubleshooting 150 Yes Insert the plug correctly Is problem corrected Yes Replace sensor or correct wire problem Is problem corrected Replace the sensor with appropriate part number Is problem corrected Yes Yes F6 F8 F9 Temperature Sensor Codes See troubleshooting chart preceding page F6 Fault amp Status Decrease frequency due to overload Status All systems operate normal with decrease in Capacity Decrease frequency due to overcurrent Status All systems operate normal with decrease in capacity Decrease frequency due to high discharge alr Status All systems operate normal with decrease in capacity N ee Is Possible Causes Refer to E8 troubleshooting procedures Input voltage too low System pressure is too high Cooling load is too great Outdoor ambient too high Refrigerant undercharge Electronic expansion valve fault 151 Lc Start up Failure Start the unit after waiting 5 minutes Are the compressor wires UVW No connected properly Yes Repair Connection Is unit operating properly Yes Is r
160. s Excessive indoor cooling load computers etc Calculate heat gain and check for proper sizing 130 Troubleshooting C Antihigh temperature and overload malfunction High Discharge Temperature Protection of Compressor Status Cooling operation compressor stops while indoor fans runs Heating operation complete unit stops Is unit running in proper outdoor ambient range Faulty outdoor temperature sensor Refrigerant leak Poor airflow of outdoor unit Follow Troubleshooting procedure pros Se Start Troubleshooting Wee Normal protection outdoor ls outdoor temperature above 127 F ambient is higher than normal parameters Remove power then restart after 20 minutes Are indoor and outdoor coils clean No Ci Coil and free from obstructions RO QUO Yes Check fan for obstruction Are indoor and outdoor fans 2 Check resistance of fan operating properly leads and voltage to motor Check fan connections Outdoor Fan Connection Yes Replace AP1 control board Replace fan End Troubleshooting 151 Troubleshooting Co are Malfunction O Energize and start the unit No Is the stop duration of the compressor longer than 3 minutes Yes Are the wire connections Reconnect the wires on the compressor according to the wiring connected properly diagram Eliminate the malfunction Yes Is the unit overcharged Yes Charge the unit according The stop duration of th
161. s 68 73 F 3 Cooling only unit When Tamb lt 71 6 F it will run at Fan mode the setting temp is 77 F 4 When 73 4 F lt Tindoor amb x 77 F firstly enter into auto mode and run at auto fan speed other modes will run at auto mode will keep the previous running mode When entering into dehumidifying mode it will run at auto fan speed 33 Product Introduction Basic Functions 18K amp 24K 230 volt B Display state of indoor indicators 1 State of indoor display board 1 When the unit is powered on all patterns will be displayed and then only power indicator is on When the unit is turned on with a remote controller the operating indicator is on and operation mode which is set currently is displayed 2 In defrosting mode H1 is displayed on Double 8 3 Set temperature is displayed on Double 8 e Display of operation patterns and mode patterns When the unit is powered on all patterns will be displayed and the standby operation indicator will become red When the unit is turned on through a remote controller the operation indicator is light At the same time operating mode patterns mode indicators include cooling heating and dehumidification modes set currently are displayed and dynamic display patterns of wind speed are displayed If the light button is switched off all display will be turned off e Temperature display control mode of separated air conditioner e When user sets the remot
162. s circuit malfunction on outdoor units control panel AP1 please replace the outdoor units con trol panel AP1 1 Supply volt age is lower than AC175V 2 Wiring terminal 4V is loosened or broken 3 4V is damaged please replace 4V Replace outdoor control panel AP1 Fault Displays Indicator has 3 kinds of displ Malfunction Indicator Display during blink Mi dod tSp ay f status and during blinking ON A C Status Possible Causes Name ing ON 0 5s and OFF 0 5s 0 5s and OFF 0 5s Operation Coo Heating Yellow Red Green Frequency Off 1S limiting and blink module tem 11 times perature Normal com munication Off 3S and Off 3S Defrosting will It s the normal blink on and blink occur in heating state ce during twice mode Compressor Defrosting blinking will operate while ON 10S indoor fan will stop and Off operation 0 5S 105 Models NEO18HP230V1AS amp NEO24HP230V1AS Malfunction Name System high pressure protection Anti freez ing protec Compressor air exhaust high temp protection AC overload protection 106 Indoor Unit Displaying Method Indicator Display during blinking ON 0 5s and OFF Display pec OFF 3S and blink once OFF 3S and blink and blink 4 times and blink 5 times 0 5s Heat pin ing LED Outdoor Unit Display LED Indicator has 3 kinds of display status and during blinking ON 0 5s a
163. s mode temp range should be 61 86 F 4 Heating mode Under this mode temp range should be 61 86 F 2 Working condition and procedure of heating mode When unit turn on and enter into Heating mode indoor unit enter into anti cool wind mode when unit is stop running and indoor fan motor turns on blowing heat will act 3 Protection function under heating mode compressor will stop to run due to malfunction happened indoor fan motor will blow surplus heat 4 Defrosting control When receiving the defrosting signal from outdoor unit displayer will display H1 10s later indoor fan motor will stop to run 5 Anti cold wind function 6 Blow heat air function a If heating temp meets the compressor stop running condition compressors outdoor fan motor will stop to run the upper and lower guide louver will rotate to horizontal position L indoor fan motor run at setting fan speed for 60s then the indoor fan motor will stop to run b Due to block running the air guide board will keep the position when it stopping under each mode other malfunction unit will stop to run the upper and lower air guide louver will rotate to horizontal position indoor fan unit will run at setting fan speed and run for 60s indoor fan unit will stop to run 5 Auto mode 1 When Tamb 78 8 F select the cooling mode at this time the setting temp is 77 F 2 Cooling and heating units Tamb lt 71 6 E will run at heating mode at this time the setting temp i
164. short circuited for successive 30 seconds After the compressor has operated for 3 minutes the Overload sensor is detected to be open circuited or short circuited for successive 30 seconds 52 Remote Control Operation Remote Buttons Note This remote control is used in other models and some features may or may not be available Consult the N FAN pP qs owners manual for specific features for your model There should be no obstructions between the remote in iul 1H K m controlandtheindoorunitforproperoperation Keepthe remote from direct sunlight or any source that generates 4 heat keep clean and dry Change batteries frequently Note For detailed explanation of the functions refer to the Remote Controller Functions section of this manual Button Identification Ihe function and operation of each button will be explained later in this manual under Product Functions On Off button Mode button Decrease Temperature Setting Increase Temperature Setting Fan Button Press to set swing angle Clock Button Timer On md I Mr E M Es 9 X Fan button see explanation below Timer On 10 Temp button 11 Timer 12 Turbo button 13 Sleep button 14 Light Button See explanations next page Press Mode amp button to change from C to F Press amp to lock control 53 Remote Control Operation Display Icons 15 16 17 18 19 20 21 22 23 24 Se explanatio
165. splay 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 display the current temperature the temperature scope is from 61 to 86 F and indoor ambient temperature The heating and air supply temperature will display 77 F under auto mode the temperature will display 64 4 F under the heating mode heating indicator on indoor unit will ON 10s and OFF 0 5s successively under the defrosting mode If you set the Fahrenheit temperature display the nixie light will display according to Fahrenheit temperature 30 pa Basic Functions 9K amp 12K 230 volt 11 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 and other load is stopped then stop the entire machine When you s
166. stop operation During heating operation the complete unit stops During cooling and drying operation compressor and out door fan stop while indoor fan operates The Dual 8 Code Display will show E3 until the low pressure switch stop operation During cooling and drying operation compressor and out door fan stop while indoor fan operates During heating oper ation all loads stop During cooling and drying operation compressor and out door fan stop while indoor fan operates During heating oper ation all loads stop Possible Causes Possible reasons 1 Refrigerant was superabun dant 2 Poor heat exchange includ ing filth blockage of heat exchanger and bad radiating environment Ambient tem perature is too high 1 Poor air return in indoor unit 2 Fan speed is abnormal 3 Evaporator is dirty 1 Low pressure protection 2 Low pressure protection of sys tem 3 Low pres sure protection of compressor Please refer to the malfunction analysis dis charge protec tion overload 1 Supply voltage is unstable 2 Supply voltage is too low and load is too high 3 Evaporator is dirty 95 Models NEO09HP230V1AS amp NEO12HP230V1AS Indicator has 3 kinds of display status and during blinking ON 0 5s and OFF 0 5s Malfunction Indicator Display during blink Possible Causes Name ing ON 0 5s and OFF 0 5s A C Status Communica tion Malfunc
167. support and the electric box and then remove the right side plate assembly Remove the screws connecting the left side plate 221 and the chassis and then remove the left side plate 22 assembly AAN AA 27 ACA left side plate SES 180 Disassembly of Outdoor Unit 18K 240 volt unit Warning Wait 10 minutes after power is disconnected before starting disassembly 4 Remove axial flow fan Remove the nuts attached to the blade and then remove the axial flow fan 5 Remove electric box and electric shield Remove the screws attached to the electric box sub assembly loosen the wire bundle pull out the wiring terminals and then pull the electric box upwards to remove it Remove the screws on fireproof electric box and then remove the fireproof electric box 181 Disassembly of Outdoor Unit 18K 240 volt unit Warning Wait 10 minutes after power is disconnected before starting disassembly 6 Remove sound proof sponge Remove the soundproof sponge wrapping the com pressor 7 Remove isolation sheet Remove screws attached to the isolation sheet and then remove the isolation sheet 8 Remove gas and liquid valve Remove the screws attached to the gas valve and unsolder the welding joint between the gas valve and the air return pipe to remove the gas valve NOTE Discharge the refrigerant completely be fore un soldering When un soldering wrap the gas valve with a wet cloth completely to avoid
168. t 3 6 F if indoor fan speed is at high level it will turn to medium level when compressor is operating if indoor fan speed is at ultra high level it will not turn to other fan speed when ambient temperature setting temperature gt 1 8 F the fan speed will resume to setting value 2 Dry Mode 1 Under this mode fan will operate as low fan speed and swing at setting status temperature setting range is 61 86 F 2 When outdoor unit is with malfunction or stop operation because of malfunction indoor unit will keep its original op eration status and display the malfunction 3 Heating Mode 1 Heating Conditions and Process When the unit is powered on and is under heating mode IDU will turn to anti cold wind function when the unit is pow ered off and the indoor fan had ever turned on the unit will turn to blowing residual heat 2 When the compressor is running doesnt include entering each malfunction and protection a When Toutdoor amblent 68 F if the indoor fan speed is low or medium the fan speed will switch to high speediif the fan speed is high or turbo the fan speed will not change b When Toutdoor amblent lt 64 F the fan speed will turn back to set fan speed c When 64 F lt Toutdoor ambient lt 68 F the unit will run in present fan speed set fan speed or high fan speed but if the unit quits anti cold wind for the first time in heating mode the unit will run in set fan speed 3 Defrosting When theres too mu
169. t timing Such two timing functions can be selected through a remote controller on which different functions are arranged 1 General timing Timing start timing start can be set when the unit is off When preset time is reached the controller will operate in a preset mode Timing can be set at an interval of 0 5 hour in a scope of 0 5 24 hours Timing stop timing stop can be set when the unit is on When preset time is reached the system will be turned off Timing can be set at an interval of 0 5 hour in a scope of 0 5 24 hours 2 Moment timing Timing start if timing start is set when the system is at operation state the system will continue to operate if timing start is set when the system is at stop as the preset time is reached the system will start to run in preset mode Timing stop if timing stop is set when the system is at stop state the system will keep standby if timing stop is set when the system is in operation as the preset time is reached the system will stop running 35 Basic Functions 18K amp 24K 230 volt 36 Timing change When the system is in timing mode start and stop can be set through the On Off button on the remote controller or timing time can be reset and the system will operate according to the latest setting When the system is in operation and both timing start and stop are set the system will stay at currently set operation state When preset timing stop time is reached the system will stop
170. tart up 3 min in normal mode b It should detect the exhaust sensor failure immediately in the testing mode 4 Module Temperature Sensor a Short Circuit Detection the compressor should be detected immediately when the module temperature sensor occurs short circuits b Open Circuit Detection the compressor should be detected on open circuit when it runs 3min it needn t 30s avoiding the module over heated c Detect the sensor failure at all times in the testing mode 5 Disposal for Sensor Protection 1 When the short circuit of sensor is detected within 30s It is regarded as the temperature of sensor over high or infinitely high and now according to the over high sensor the machine should carry out the corresponding protection to stop working and show the corresponding temperature shutdown protection and sensor failure at the same time for example the compressor stops immediately when the outdoor tube sensor short circuit and the machine shall show the overload protection and outdoor tube sensor failure 2 When the open circuit of sensor is detected within 30s The protection shall be stopped and it shall show the corresponding sensor failure 47 y Basic Functions 30K amp 36K 230 volt 48 1 Temperature Parameters e Indoor preset temperature Tpreset e Indoor ambient temperature Tamb 2 Basic Functions Once energized in no case should the compressor be restarted within less than 3 minutes In the s
171. tart up for 10 minutes Texhaust before start up lt 35 6 F the outdoor exhaust temperature thermo bulb can be judged not to be connected into place judging once when the power is on the first time b Comparative judgment of exhaust detection temperature and condenser detection temperature Tpipe temperature Toutdoor pipe temperature in cooling mode Tpipe temperature Tindoor pipe temperature in heating mode After the compressor starts up and runs for 10 minutes if the compressor frequency f 2 40Hz and Tpipe temperature gt Texhaust 37 4 F the outdoor exhaust temperature thermo bulb can be judged not to be connected into place judging once when power is on the first time B Basic Functions 1 Cooling Mode 1 Conditions and processes of cooling operation 1 If the compressor is shut down and Tsetup Tindoor ambient temperature Tcooling indoor ambient temperature compensation lt 32 9 F start up the machine for cooling the cooling operation will start 2 During operations of cooling if 32 F lt Tsetup Tindoor ambient temperature A Tcooling indoor ambient temperature compensation lt 35 6 F the cooling operation will be still running 3 During operations of cooling if 32 F lt Tsetup Tindoor ambient temperature A Tcooling indoor ambient temperature compensation the cooling operation will stop after reaching the temperature point 2 Temperature setting range 1 If Toutdoor ambient te
172. tatus before refrigerant recovery the complete unit will still at standby status after refrigerant recovery If the complete unit is at ON status the unit will operate according to original operation mode 3 After entering refrigerant recovery function Indoor unit operates at cooling mode Fan speed is super high speed and set temperature is 16 C Horizontal will open at the minimum operation angle Basic Functions 18K amp 24K 230 volt Indoor Unit A Basic function of system 1 Cooling mode 1 Under this mode fan motor swing will work under setting status the temp range is 61 86 2 Outdoor unit malfunction or unit stop running indoor unit will keep original running status malfunction displayed 3 WhenO Tset Tamb if indoor fan motor is high speed that the fanmotor is running in middle speed the middle speed or low speed will be maintained this condition should be executed when compressor start up the super high speed will not rotate When Tamb Tset 233 8 F the fan will return to the setting fan speed 2 Drying mode Under this mode fan motor will run at low speed swing will work at setting status setting temp range is 61 86 F 2 Outdoor unit malfunction or protection unit will stop indoor unit will keep original running status malfunction displayed 3 Fan mode Under this mode indoor fan motor could be set at high middle low or auto speed compressor outdoor unit and valve will stop to run Under thi
173. 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 Product Introduction Basic Functions 9K amp 12K 230 volt 5 Overload protection If temperature sensed by the overload sensor is over 239 F the compressor will stop and the outdoor fan will stop with a time lag of 30 seconds If temperature is below 203 F the overload protection will be relieved 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 3 Other Controls 1 ON OFF Press the remote button ON OFF the on off state will be changed once each time you press the button 2 Mode Selection Press the remote button MODE then select and show in the following ways AUTO COOL DRY FAN HEAT AUTO 3 Temperature Setting Option Button Each time you press the remote button TEMP or TEMP the setting temperature will be up or down by 1 8 F Regulating Range 61 86 F 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 function Sleep mode is only valid under
174. timation After the compressor stopped working for 180s if TModule lt TModule frequency limited temperature the temperature of hysteresis is 35 6 F the machine is allowed to start otherwise it should not be started and should be stopped to treat according to the module overheating protection The machine should be stopped or transferred to supply air the trouble should be cleared immediately and the protection times are not counted 2 Frequency limited If TLimited frequency temperature of module lt TModule lt Tfrequency reducing temperature at normal speed of module you should limit the frequency raising of compressor 3 Reducing frequency at normal speed and power turn off If Tfrequency reducing temperature at normal speed of module lt TModule lt Tfrequency reducing temperature at high speed of module you should adjust the compressor frequency by reducing 8Hz 90s till the lower limit After it was running 90s at the lower limit if Tfrequency reducing temperature at normal speed of module lt TModule you should stop the machine for module overheating protection 2 Frequency limited If TLimited frequency temperature of module x TModule Tfrequency reducing temperature at normal speed of module you should limit the frequency raising of compressor 3 Reducing frequency at normal speed and power turn off If Tfrequency reducing temperature at normal speed of module lt TModule lt Tfrequency reducing temperature at high sp
175. ting indoor ambient temperature compensation Tsetup the heating operation will stop after reaching the temperature point 2 The temperature setting range in this mode is 60 8 86 F C Special Functions Defrosting Control a Conditions for starting defrosting After the time for defrosting is judged to be satisfied if the temperature for defrosting is satisfied after detections for continuous 3minutes the defrosting operation will start b Conditions of finishing defrosting The defrosting operation can exit when any of the conditions below is satisfied c Toutdoor pipe temperature 2 Toutdoor ambient temperature Ttemperature 1 of finishing defrosting d The continuous running time of defrosting reaches tmax defrosting time D Control Logic 1 Compressor Control Start the compressor after starting cooling heating dehumidifying operations and the outer fans start for 5s when the machine is shut down in safety stops and when switching to air supplying mode the compressor will stop immediately In all modes once the compressor starts up it will not be allowed to stop until having run for the tmin compressor running time Note including cases of shutdown when the temperature point is reached except the cases requiring stopping the compressor such as fault protection remote shutdown mode switching etc In all modes once the compressor stops it will be allowed be restart after 3 minute delay Note The indoor units h
176. tion of module temperature sensor circuit 120 blinking blinking in cool in heat and OFF and blink 15 times Off 3S and blink 17 times Off 3S and blink 18 times During cooling and drying oper ation compressor will stop while indoor fan will operate During heating operation the complete unit will stop opera tion During cooling and drying oper ation compressor will stop while indoor fan will operate During heating operation the complete unit will stop opera tion During cooling and drying oper ation compressor will stop while indoor fan will operate During heating operation the complete unit will stop opera tion Showing during middle cooling or middle heating test Refer to malfunc tion analysis Refer to the part three charging malfunction anal ysis of capacitor Replace outdoor control panel AP1 Models NEO30HP230V1AS amp NEO36HP230V1AS Malfunction Indicator Display during blink Name ing ON 0 5s and OFF 0 5s Module high temperature and blink protection 19 times Decrease fre quency due to high t Be cat and blink 10 times ture resistant during heat ing operation Static dedust ing protection and blink 2 times Overload protection of compressor Indicator has 3 kinds of display status and during blinking ON 0 5s and OFF 0 5s A C Status During cooling and drying oper ation compressor wil
177. top 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 10 minutes or Touter tube gt 50 F 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 70Hz c Protection e Cold air prevention The unit is started under heating mode the compressor is ON 1 In the case of Tindoor amb lt 75 F if Ttube lt 104 F 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 Ttube gt 104 F 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 Ttube gt 108 F the fan will run at present speed 49 Product Introduction y Basic Functions 30K amp 36K 230 volt 2 In the case of Tindoor amb lt 75F if Ttube lt 108E the indoor fan will run at low speed and after one minute the indoor fan will be converted to preset s
178. top 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 12 Memory function when interrupting the power supply Memory content mode swing function light set temperature and wind speed After interrupted the power supply the machine will start when recovering the power according to the memory content automatically If the last remote control command has not set the timed function the system will remember the last remote control command and operate according it If the last remote control command has set timed function and the power supply is interrupted before the timed time the system will remember the timed function of the last remote control command the timed time will recounted form power on If the last remote control command has set timed function the time is out and the system is start or stop according to the set time when the power supply is interrupted the system will remember the operation status before the power supply was interrupted and do not carry out timed action The timed clock will not remembered 13 CONTROL OF OUTDOOR ELECTRIC HEATING BAND If not in heating mode or temp sensor has malfunction electric heating bands of compressor and of condenser will stop operation otherwise the below control logic will be followed 1 Control of Compressor Electric Heating Band a Startup condit
179. tus Defrosting will occur in heating mode Normal function Compressor will operate while indoor fan stops a Protection for Compressor 1 Wiring terminal OVC COMP is loose In During cooling mode compressor will stop indoor fan will run Heating mode all units stop normal state the resistance should be less than 1 ohm 2 Refer to E4 troubleshooting procedures 154 H5 Error Code IPM Protection H5 Fault amp Status Possible Causes IPM Protection 1 Dirty indoor and outdoor coils Status 2 Faulty indoor or outdoor fans During cooling mode compressor will stop 3 High system pressure indoor fan will run Heating mode all units 4 Over charge of refrigerant stop Start Troubleshooting after unit is powered off for 3 minutes Are the compressor terminal connected properly Yes Check the compressor winding resistance Is the resistance normal Correct wiring Yes problem Test the isolation impedance between the three phases of the compressor and copper tubing Is the resistance above 500MO Replace Compressor Is Malfunction eliminated No Replace the outdoor mainboard End Troubleshooting 155 H7 Error Code continued on next page De synchronization of compressor H7 Desynchronizing of compressor 1 Check the resistance of the compressor Status terminals and connections to the compressor During cooling mode compressor will stop indoor fan will ru
180. ure State Display Table Note in the case that the unit is switched off with the remote controller or the compressor is switched on again failure display waiting time 200s shall be cleared e Frequency limitation and reduction states shall be displayed by means of remote calling 2 Failure display control Indicator failure display shall be kept synchronous with Double 8 failure display that is during indicator blinking failure code corresponding to such indicator shall be displayed on Double 8 3 Method of remote calling of failure display Entering the failure remote calling mode push the light button four times within 3s to call out relevant failure protection code Quit the failure remote calling mode push the light button four times within 3s or call out failure display to enter it for 5 minutes and then quit 4 Other control targets 34 Basic Functions 18K amp 24K 230 volt 1 Up and down wind blow functions When the unit is powered on the up and down wind blow motor will turn a wind deflector anti clockwise to Position 0 to shut down the air outlet When the unit is switched on and wind blow function is not preset under the heating mode up and down wind blades will turn clockwise to position D and under other modes the up and down wind blades will turn clockwise to position L If wind blow function is set at the same time as the unit is switched on the wind blades will swing between position L and D The wind
181. us fse 968 9382 fss 1904 1451 as so 087 37 X 986 900 1 408 14 68 129 38 1004 8642 1 363 13 86 974 39 1022 8297 1 322 E S0 12 104 9222 40 1040 7967 1 282 u 122 8735 41 105 84 7 653 1244 10 140 8275 42 1076 7352 1 207 9 158 7843 fas 1094 7065 e i726 7435 44 ima fezi f L7 fig 05 M5 uso 6529 6 212 6688 46 i148 6278 5 pao 6346 47 116 6 6058 a 248 6023 48 i184 5809 3 266 5718 49 1202 5589 2 284 5431 50 120 5 379 a soz 5159 51 138 5 197 o 320 4902 52 0256 4986 a ss8 466 55 i274 j480 2 356 4431 54 i292 4625 3 sza 214 55 i310 4456 4 392 4000 56 1328 4294 5 amo s amp 15 57 1346 alo 6 42s 3632 58 1364 399 7 446 3458 59 i3ss2 3 848 s 44 3294 feo 1400 3711 9 482 3138 fei i418 3579 1 171 1 136 1 103 98 2084 1071 99 2102 1 039 1 009 0 98 0 952 0 925 0 898 0 873 0 848 0 825 0 802 0 779 0 758 0 737 0 717 0 697 205 Appendix 1 Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor Units 15K Temp Temp Temp Temp Temp Temp C F C F C F 10 so0 299 6 1436 3458 114 2372 0678 i sts 2851 63 1454 33338 ms 2390 066 12 536 12718 f s 1472 3217 m 2408 0642
182. ut 10 degrees F Since this tubing is cold it must be insulated F The superheated vapor will be returned to the outdoor units 4 way valve G The refrigerant will flow to the accumulator not all models will have an accumulator where liquid and vapor are separated H The refrigerant will flow to the compressor and complete another refrigeration cycle The control board will monitor the temperature and pressures and adjust the frequency of the compressor and flow rate of the EEV as needed There are no pressure charts to evaluate temperature or pressures 13 Product Introduction Outdoor Unit a TT Se SS a q Filter E EK Temperatur Indoor Unit Sensor j Heat E Be eee Electronic Exchanger xpansion ge eee ee es valve Heat Exchanger ETT nm E SS F o ee ee a T T li 4 way valve Discharge lt lt l silencer Note Please refer to actual model for exact piping le Discharge arrangement refrigeration components may adt re O vary z 5 Sdnsor Accumulator not D 8 on all sizes gt E O z E yee P X w al Note The manufacturer reserves the right to modify the design and or change the specifications without notice Please refer to specific insta
183. utes the compressor will resume its operation If module protection occurs six times in succession the compressor will not be started again E Overload protection If temperature sensed by the overload sensor is over 239 F the compressor will stop and the outdoor fan will stop with a time lag of 30 seconds If temperature is below 203 F the overload protection will be relieved 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 F Fault of temperature sensors 51 Product Introduction Basic Functions 30K amp 36K 230 volt Designation of Sensors The sensor is detected to be open circuited or short cir Indoor Ambient Temperature cuited for successive 30 seconds The sensor is detected to be open circuited or short cir Indoor Tube Temperature cuited for successive 30 seconds The sensor is detected to be open circuited or short cir Outdoor Ambient Temperature cuited for successive 30 seconds The sensor is detected to be open circuited or short cir Outdoor Tube Temperature cuited for successive 30 seconds and no detection is preformed within 10 minutes after defrost begins After the compressor has operated for 3 minutes the Exhaust sensor is detected to be open circuited or
184. will operate During heating operation the com plete unit will stop operation All loads operate normally while operation frequency for compressor is decreased During cooling and drying operation compressor will stop while indoor fan will operate During heating operation the com plete unit will stop operation During cooling and drying operation compressor will stop while indoor fan will operate During heating operation the com plete unit will stop operation Possible Causes After the complete unit is de ener gized for 20 mins check whether the thermal grease on the IPM Module of outdoor control panel AP1 is suffi cient and whether the radiator is inserted tightly If its no use please replace control panel API Refer to the mal function analysis overload high temperature resis tant 1 Wiring termi nal OVC COMP is loosened In normal state the resistance for this terminal should be less than lohm 2 Refer to the mal function analysis Refer to the mal function analysis overload high temperature resis tant 101 Models NEO09HP230V1AS amp NEO12HP230V1AS Malfunction Name IPM protec tion Module temperature is too high Internal motor fan motor do not operate Desynchro nizing of compressor PFC protec tion 102 Indicator Display during blink ing ON 0 5s and OFF 0 5s and blink 5 times and blink 1
185. will operate at the temperature sent by remote controller For cold air prevention the unit operates accord ing to the ambient temperature sensed by the air conditioner If it only received I FEEL command and hasnt received the valid ambient temperature air conditioner will operate according to the ambient temperature sensed by itself Re mote controller will send the ambient temperature to controller every 10min If controller hasn t received the ambient temperature sent by remote controller for 11min air conditioner will operate according to the ambient temperature sensed y itself If I FEEl hasn t been set ambient temperature will adopt the temperature sensed by air conditioner Controller displays I FEEL ambient temperature 34 F 138 F 12 Health Cold Plasma Function reserved At ON status press health button if there isn t health button on remote controller health function is ON in default on remote controller can set health or cold plasma function Health or cold plasma function can operate when it set ON and indoor fan operates 13 Fahrenheit Display Function Niexie tube displays current set temperature If the remote control signal is Fahrenheit the temperature will be display by Fahrenheit Set temperature range is 61 86 F Under auto mode nixie tube displays 77 F in cooling and fan and 68 F in heating Cooling only controller only displays 77 F 14 Locked Protection to Indoor Fan If the indoor fan motor keeps low
186. wn in Fig C aca a rb tp aae Ce gt Ji DP un L5 C e pe i i i A A AS RS AA NL i pasce ps A a 7 ex us fir UU ee A o A A A Emergency Operation When the remote controller is lost or damaged please use the auto switch on the indoor unit Press the AUTO STOP button to enter AUTO mode Press the AUTO STOP button again to turn the unit off 67 EA NEOO9HP115V1AH NEOO9HP115V1AH 115 vac OG Orange Earth Ground WH YE RD 4 Way Valve Yellow Green Terminal Block mm _l ROOM TUBE DISPLAY TEM SENSOR TEM SENSOR a f CN1 CN2 OV 9 i RT1 RT2 13 XT o WABU T DIS weg C gt gt mae WEN 3 Z iT e LEA WIYEGN WW YEGN EVAPORATOR ELECTRIC BOX B E RET OV IN G U NC A FAN MOTOR SWING MOTOR U D TRANSFORMER Circuit diagrams are subject to change without notice please refer to the one supplied with the unit 68 QUEM Schematics NEOO9HP115V1AO NEOO9HPI115V1AO 115 vac q A d A 1 es WH White COMP Compressor AO YE po Yellow CTI2 Ovelad O Rp Rd 4v way valve o B Be o BK Bk o oo es O O NN Outdoor Unit TUBE DUTROON EXHAUST TER m TER Te 1 SENSOR El SAT o YEN HHO RD TS E 5 E pu 7 lt COR FILTER o t d r a tee ana a 7 E TERR INAL AW Sm e e o dO CRUS Tm E MEL gy y D m 4 d HOB WEP RD B f y 3 H lg it Pa 1 Z Al y FAN ROTOR 2 QW BN
187. wn protection When total current Itotal lt 6A increase frequency is allowed when total current Itotal 7A increasing frequency is prohib ited when total current Itotal28A the unit operates by decreasing frequency When total current Itotal29A the compres sor stops operation and indoor fan will stop operation after 30s 2 Dehumidifying Mode 1 Working conditions and process of dehumidifying If Tamb preset the unit will enter cooling and dehumidifying mode in which case the compressor and the outdoor fan will operate and the indoor fan will run at low speed If Tpreset 3 6 F lt Tamb lt Tpreset the compressor remains at its original operation state If Tamb Tpreset 3 6 F 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 3 Heating Mode 1 Working conditions and process of heating 1 If Tpreset Tindoor ambient Tcompensatory 21 8 F the unit enters heating mode in which case the compressor the outdoor fan and the 4 way valve will operate simultaneously 2 If 3 6 F lt Tpreset Tindoor ambient Tcompensatory lt 1 8 F the unit will maintain its original operating status 26 pa Basic Functions 9K amp 12K 230 volt 3 If Tpreset Tindoor ambient Tcompensatory lt 3 6 F the compressor will stop and the outdoor fan will stop with a time lag of 30s 4 If turning

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