Ductlessaire mini split SERVICE MANUAL Mono DC
Contents
1. TA A 3 1 7 N R 27 E ma TEEN de 35 t 21 111 Model R mm H mm Dimension of installation hole mm DA1215 H1 95mm 170mm 45mm 3 7in 6 7in 1 8in 65mm 2 56in 80 100 4 DA1815 H1 A a 3 1in 3 9in 1 8in L B gt T AD Ki fig S 1 11 INE g JI i c SC i 0 ER D 9 2 EE 0 6 6 FA E S A 9 9 ja a I A Jo 0 own ana IE ed EE EE R mm L mm H mm Dimension of installation hole mm 163 293 45mm DA2415 H1 I B 65mm 2 56in 6 4in 11 5in 1 8in 3 2 Outdoor Unit Note The above drawing is only for reference appearance of your units be different More than 30cm 11 8in Y VA 4 x 2 4 More than 60cm 23 6in Service space2. H n ro ES oa 1 Exhaust There s a LED light on the outdoor PCB which is blue color After power on it will be slow flash 0 2Hz when the unit is in standby and quick flash 2 5Hz if the unit has some problems 39 gt 1815 2 gt D EEE H l CMOS TEMP 0000000000000 11 1 Ys paca B H 58 2 7 ON IN A A L lt mg 4 lt T L
3. NO 1 2 3 4 5 Color Orange Grey White Pink Black Signal Hu Hw Vcc GND Color Red Blue Yellow Signal W V U 1 Release the UVW connector Measure the resistance of U V U W V W If the resistance is not equal to each other the fan motor must has problems and need to be replaced Otherwise go to step 2 2 Power on and when the unit is in standby measure the voltage of pind 5 in feedback signal 47 connector If the value is not 5V change the PCB Otherwise go to step 3 3 Rotate the fan by hand measure the voltage of pin1 5 2 5 3 5 in feedback signal connector If any voltage is not positive voltage fluctuation the fan motor must has problems and need to be replaced 48 10 4 5 Open circuit or short circuit of temperature sensor diagnosis and solution E5 Error Code 5 Malfunction decision If the sampling voltage is lower than 0 06V or higher than 4 94V conditions the LED will display the failure Supposed causes e Wiring mistake e Sensorfaulty Trouble shooting Check the connections between temperature sensor and main PCB Noy Correct the connections Are the connections good Yes i Check the resistance value of the sensor via Yes gt Replace indoor or table1 p64 and table outdoor main PCB 2 p65 is it normal No Y Replace the sensor and check if the problem happen again
4. ia i div Fe Air inlet 7 2 4 4 4 27 DA1215 H1 O op s b 2 30 71 9 81 21 31 33 21 21 61 10 90 DA1815 H2 O Ze SM Sem mm 29 9in 11 2in 23 2in 32 4in 20 9in 11 4in 845mm 320mm 700mm 908mm 560mm 335mm DA2415 H2 O l 33 3in 12 6in 27 6in 35 7in 22 0in 13 2in 11 5 Refrigerant Cycle Diagram For cooling only models INDOOR HEAT EXCHANGE EVAPORATOR OUTDOOR LIOUID SIDE 700900 CAPILIARY TUBE k 7 EXCHANGE CONDENSER MA 9 GAS SIDE COMPRESSOR For heat pump models INDOOR OUTDOOR 4 CHECK VALVE LIQUID SIDE Heating Model only 4 mmm 2 WAY VALVE 70000097 TUBE CONDENSER gt qucm GAS SIDE 4 NN x 205 3 WAY VALVE l REVERSING VALVE Heating Model only 9 E v xu d COOLING COMPRESSOR 4 HEATING 6 Wiring Diagram 6 1 Indoor Unit 12000 BTU 115 VOLT 1ONIZER 202052090361 HI 1 4 i i OPTIONAL IN FAN 5 1 4 T L 5
5. 49 10 4 6 Refrigerant Leakage Detection diagnosis and solution EC Error Code EC Malfunction decision Define the evaporator coil temp T2 of the compressor just starts conditions running as Tcool In the beginning 5 minutes after the compressor starts up if T2 lt Tcool 2 C does not keep continuous 4 seconds and this situation happens 3 times the display area will show and AC will turn off Supposed causes e T2 sensor faulty e Indoor PCB faulty e System problems such as leakage or blocking Trouble shooting Shut off the power supply and turn it on 5 seconds later Is it still displaying the error code Yes Y Check if T2 sensor is well Is there cool air blowing fixed Correct the installation out from indoor air outlet ZE replace 2 sensor Does the problem remain again No Yes i i Is there any leakage Especially Replace indoor PCB the connection parts such as the gas valve and the liquid valve Yes No Repair the leakage and 00 i recharge the refrigerant Is there any blocking Such as the capillary or the welded points of the pipes Yes v Clear the blocking 50 10 4 7 IPM malfunction or IGBT over strong current protection diagnosis and solution P0 Error Code PO Malfunction decision conditions When the voltage si
6. YOSSIYdNOD DA1815 H2 0 202037890976 Weg d Se Sensor OUTDOOR MAIN PCB po cc 1 0 0 0 cA CO EE M CN10 CN10A CN22 11 NS OPTIONAL HEATER 1 HEATER 2 11 HEATER 1 F KKk 2 _ EE EET ERIT OUTDOOR WIRING DIAGRAM 1 1 1 1 1 1 1 1 1 1 1 1 DA2415 H2 0 202038090748 DISCHARGE SENSOR 1 IONAL n HEAT EXCHANGER SENSOR OPTIONAL HEATER TESTBOARD Fl E HEATER 2 uearer 1 Y G Y G OUTDOOR MAIN PCB CAPACITOR 18 For DA1215 H1 O CN4CL gt CNSCN power supply nsv connect to the terninal FUSE TROAL 230VAC CNi4 connect the earth ONKS Signet wire connect to the terninal 24VDC Puise wave betweene GCNIS C CN7 connect to outdoor FAN 3 4 OVAC high speed running 4 2 4 OVAC Gow speed Runnhg y CNAL CNAZ CN33 CN34 correct compressor heo when heater Is DN output USVAC CNeB amp connect to the d WAY shen 4 vay Is DN output 115 vantev BE Electric Expenslen Velvf ay pc DC pulse wave between r4 GND 4 DC p se wave between FID SND 3 12V DC pulse wave between 2 5ND 2 HAV DC pulse wave between 4D GND 1 con
7. O light X off 2 5Hz flash DA1215 H2 O FANC 1 202302130864 D 7 Ee CN3 1161 i 53 8 2012 11 16 amp ssri 5 o zt CNS 4 z 1 z N B glo 53 L B 2 amp
8. Outdoor fan off on Indoor fan off 10s Indoor fan breeze 10s XX i 105 no longer than 10m _ 905 XX 60 for 18k model XX 90 for 22k model Condition of defrosting If any one of the following items is satisfied AC will enter the defrosting mode After the compressor starts up and keeps running mark the minimum value of T3 from the 10th minutes to 15th minutes as T30 1 If the compressor cumulate running time is up to 29 minutes and T3 TCDI1 T3 T30SUBTSONE T30 2 If the compressor cumulate running time is up to 35 minutes and T3 TCDI2 T3 T30SUBT3TWO T30 3 If the compressor cumulate running time is up to 29 minutes and lt TCDIS for 3 minutes 4 If the compressor cumulate running time is up to 120 minutes and T3 lt 15C Condition of ending defrosting If any one of the following items is satisfied the defrosting will finish and the machine will turn to normal heating mode T3 rises to be higher than TCDE1 C T3 keeps to be higher than TCDE2 C for 80 seconds The machine has run for 10 minutes defrosting mode Compressor 4 way valve Outdoor fan XX 10s 10s nolongerthan10m 308 xx 20s 9 4 3 5 Evaporator coil temperature protection 122 TEH2 C the compressor running fr
9. DUCTLESSAIRE MINI SPLIT SERVICE MANUAL Mono DC Revision A 1403100001 Content updated Model Numbers DA1215 H1 DA1815 H2 DA2415 H2 Table of Contents O COON op Pm oO N Precaution Part Names And Functions Specification Dimension Refrigerant Cycle Diagram Wiring Diagram Installation Details Operation Characteristics Electronic Function US Troubleshootind Disassembly Instructions Intertek WARNING Installation MUST conform with local building codes or in the absence of local codes with the National Electrical Code NFPA70 ANSI C1 1993 or current edition and Canadian Electrical Code Parti CSA C 22 1 22 Ni WD information contained in the manual is intended for use by a gualified service technician familiar with safety procedures and equipped with the proper tools and test instruments Installation or repairs made by unqualified persons can result in hazards to you and others Failure to carefully read and follow all instructions in this manual can result in equipment malfunction property damage personal injury and or death This service is only for service engineer to use CONTENTS We PRECAUTION EE 1 1 eege 1 1 2 Warning WE 1 2 Part Names And Functions EE iue ucc uec ete Dre ese 4 2 1 Model Names of Indoor Outdoor uns 4 2 2 Part names of Indoor Outdoor u
10. high speed running 4 2 4 OVAC 208 230 low speed Runnhg 5 LR E2 Z connect conpressor hester when heater Is ON output 08 230 4 CN9 een mem when 4 way Is DN output 208 230 A Exoust temp sensor T H tere d ji u 8 roon tenp sensor R 4 HOL RL EL I correct to the comperzsor top temp sensor He LEE DEG wot 1 EI x j KI connect to the compressor mmm OVAC 556 EE ikax xx 7 0000000000000 800 sp test port connect to detector p CE KFRABW BPECOASPFCADA3 WPZ 1 Flashing once per secondilow speed flashing standby Flashing once per half second high speed flashing cerror gt gt LENS aways on running power tight when power Is on LEDI aways on LED64 end LEDS off stando LED4 off ord LEDI rureing other status error ED VIT APACITUR Voltage LED3 290 330VDE Gtanaby 250 330 0 Running For DA2415 H2 0 20 the relay output wire cross this componen Correct to outdoor AC FAN 3 3 4 OVAL 208 230 running 2 4 OVAC 208 230 running CNe6 oneg connect to the 4 when 4 woy ls ON output 208 230 CN33 CN34 1 when heater Is ON
11. 262 264 266 268 270 E 273 58 Appendix 2 Temperature Sensor Resistance Value Table for T5 C K 7 kom fr x 3 296 5215 e 15 Tes o T T Fu qu 975 le n ise Fs 15 29 for n som n 22 jem a 15 ess le es e se EWE 29 Es m fame lm rs r 16 ease ne jer jew 5 17 74 lm 2e o je fus 19 io 55 je soso jem ENE fre Te 16 sen 2 20 215 je 9 je se pe fo 207 5 17 sz 19 jw je vei sem s ae e fo Ja lm je sos 15 s a hax 19 5 189 fes sou s 2 ee 5 15 es je 5 129 je sem aso 7 15 lr 4 17 fee ses 1 7 joe 15 19 195 sse pes 177 15 lrsz 19 ls me 19 sir rare m qe pes fe pe ee fo fe fs ue pm pee m fe pes Ja lm e I ne ju 6 je fia 159 25 var 1 9 19 17 jus ju an I 5 19 lee 52 le fes 15 aos e hr e mz 17 155 gt aos le 15 6 vase lm som le 15 6 19 uo 20 see 59 3 10 11 12 13 14 15 16 17 18 19 20 21 22
12. 52 mal 1142 ikasqa E i 49 f DER 119 59 l H m 0 m 9 LIE HEATE bo i OPTIONAL 51 LIT VEH rk 21 OPTIONAL 8 082 8 1 38 di x NILUM ut 7 alm ak ye a Lat LED DISPLAY BOARD 2 tonic BF 8 g i CN10 WEE 999 B DE Sg ger LNS 410 w Fa QOS INDOOR UNIT INDOOR WIRING DIAGRAM OPTIONAL LCD DISPLAY BOARD N 18000 220 VOLT 202032891196 Notes This symbol indicates he element 50101 acta shape sd OPTIONAL Y G SWIMG MOTOR1 SWIMG MOTOR2 OPTIONAL 5 gelee OUTDOOR UNIT 24000 BTU 220 VOLT 202033091027 OPTIONAL ELECTRONIC HEATER VERTICAL SWING MAIN BOARD CN TO CNTIN 1 2 3 41 1 2 Notes Tissyrbol indicates to isopfonal he actual shape shal be prevail DISPLAY BOARD 15 6 2 Outdoor Unit DA1215 H1 0 202037590789 NE Ge LCPmioNAL OPTIONAL HEATER 1 I I iek 1 DISCHARGE OUTDOOR MAIN after sale repairing test OUTDOOR WIRING DIAGRAM 16 AMBIENT s SENSOR OPTIONAL 1 TIONAL I OLP TEMP SENSOR L 202037391389 HEAT EXCHANGER Dh SENSOR OPTIONAL
13. Displav panel Noh ON Air inlet side Outdoor unit 8 Connecting pipe 9 Connecting cable 10 Stop valve 2 3 Functions of Indoor Outdoor units Filter old Catalyst Filter lonizer O Silver lon Filter Louver Position Memorv Function Vitamin Filter O Refrigerant Leakage Detect 3M HAF Filter O 8 Degree Heating O Bio Filter O Heat Compensation O Golden Self diag Function Self Clean O PTC Heating Belt O Follow Me O Compressor Crankcase Heater standard for 168 218 optional function e Cold Catalyst Filter Eliminate formaldehyde and other volatile organic compounds as well as harmful gases and odors e lonizer Release negative ions eliminate odor dust smoke and pollen particles to give you fresh and healthy air e Silver lon Filter Sterilize bacteria effectively by decomposing cell wall of bacteria e Vitamin Filter Release Vitamin which can eliminate active oxygen to beautify the skin e 3MHAM Filter Open hole structure with charged electrostatic effectively capture dust and particles ensure maximum air flow and minimum pressure drop e Bio Filter O Bio filter consists of a specialized biological and Eco filter The Eco filter catches very small airborne dust particles and bact
14. gt I cs L a ALAIN 1 T20A 250VAC Ls w n ca s 2 A s ca s IE i 4 i 8 1 N P 1001 an 1 Ss 55 10000000 gt p Ma UO OO standby operating LED2 slow flashing 0 2Hz on LED1 on on The picture of PCB above is only for reference LED 1 is a red light and for the PCB POWER display LED 2 is a yellow light After power on it will be slow flash 0 2Hz when the unit is in standby and quick flash 2 5Hz if the unit has some problems gr 5 e 1 m CE KFR4BW BP2C343PFO D13 WP2 1 202302130887 ED4 LED 4 green and LEDS red are two lights controlled by the compressor drive chip Below meanings for those lights 40 LED4 Green LED3 No Red Problems IU display IPM malfunction or IGBT over strong current protection BEET __ p TN p lt lt E
15. be different 37 10 1 Indoor Unit Error Display 4 4 times EC NE Indoor fan Indoor fan speed has been out of control has been out of control Indoor room temperature sensor T1 open circuit or short 5 times EEN Evaporator coil temperature sensor 2 open circuit or 6 times X 5 PR H H short circuit 7 times Refrigerant leakage detection Outdoor temperature sensor T4 open circuit or short circuit Condenser coil temperature sensor T3 open circuit or 3 times F2 dO 2 E short circuit Compressor discharge temperature sensor T5 open 4 times F3 EMP erg Circuit or short circuit 0 Fa Outdoor unit EEPROM parameter error 0 F5 Outdoor fan speed has been out of control Conly for EC AMNES EE High temperature protection of compressor top diagnosis solution only for MS11D 21HRDN1 MN5Q1W model see s lm 38 10 2 OUTDOOR UNIT ERROR DISPLAY gt DA1215 H1 O US KFR26W BP2 BP3X115V gt D 13 WP2 1 H 202302130902 7
16. later Is it still displaying H the error code Yes Y Find out the cause and Shut off the power supply 2 dei rotate the fan by hand No ap EE Does it rotate properly es blocked or the bearing is broken Yes Check the wires of fan motor Are all the No Correct the connections connections good Yes Y If the Check whether the fan Replace the fan malfunction is motor is normal through No gt still existing motor index 1 replace the 1 Yes Replace the Check whether the main PCB is main FEE No The normal through index 2 malfunction is solved Yes 46 Index 1 1 Indoor fan motor Measure the resistance value of each winding by using the tester Input Terminal Red K Red 1 Black 2 White White 3 _ Black For the definite value of the resistance refer to page61 and page64 Index2 1 Indoor AC fan motor Power on and set the unit running in fan mode at high fan speed After running for 15 seconds measure the voltage of pin1 and pin2 If the value of the voltage is less than 100V 208 240V power supplvjor 50V 115V power supply the must have problems and need to be replaced Input Terminal Red Red 1 Black 2 White White 8 _ O Black 2 Outdoor DC Fan Motor control chip is in outdoor PCB Feedback 1 5
17. reaching the setting on time 35 9 4 7 6 The timer function will not change the current operation mode Suppose is off now it will not start up firstly after setting the timer off function And when reaching the setting time the timer LED will be off and the AG running mode has not been changed 9 4 7 7 The setting time is relative time 9 4 8 Sleep function mode 9 4 8 1 Operation time in sleep mode is 7 hours After 7 hours the quits this mode and turns off 9 4 8 2 Operation process in sleep mode is as follow When cooling the setting temperature rises 1 C be lower than 30 C everv one hour 2 hours later the setting temperature stops rising and indoor fan is fixed as low speed When heating the setting temperature decreases 1 C be higher than 17 C every one hour 2 hours later the setting temperature stops rising and indoor fan is fixed as low speed Anti cold wind function has the priority 9 4 8 3 Timer setting is available 9 4 8 4 When user uses timer off function in sleep mode or sleep function in timer off mode if the timing is less than 7 hours sleep function will be cancelled when reaching the setting time If the timing is more than 7 hours the machine will not stop until reaches the setting time in sleep mode 9 4 9 Auto Restart function The indoor unit is eguipped with auto restart function which is carried out through an auto restart module In case of a sudden power failure
18. running Pipesize Size 7 Installation Details Liquid 7 1 Wrench torque sheet for installation Eum m Additional tightenin CDM Outside diameter Torque 9 9 9 52 6 5 toraue 1 2in 1 4 DA1815 H2 6 35 1 4in 1500N cm 153kgf cm 1600N cm 163kgf cm 12 7 6 35mm ADAH 5 8in 3 8in 9 52 3 8in 2500N cm 255kgf cm 2600N cm 265kgf cm 12 7 1 2 3500N cm 357kgf cm 3600N cm 367kgf cm 2 Standard Additional 15 9mm 5 8in 4500N cm 459kgf cm 4700N cm 479kgf cm Elevatio length refrigerant n 19mm 3 4in 6500N cm 663kgf cm 6700N cm 683kgf cm DA1215 H1 O 10 15g m DA1215 H1 32 88 0 5302 3 3ft DA1815 H2 O 20 15g m 7 2 Connecting the cables DA1815 H2 I 1 65 68 0 5302 3 3ft The power cord should be selected according to the following specifications sheet DA2415 H2 O 25 30g m Appliance Amps AWG Wire Size DA2415 H2 82 0ft 1 0702 3 3ft 15 14 20 12 30 10 The cable size and the current of the fuse or switch are determined bv the maximum current indicated on the nameplate which located on the side panel of the unit Please refer to the nameplate before selecting the cable fuse and switch 7 3 Pipe length and the elevation 22 7 4 Installation for the first time Air and moisture in the refrigerant system have undesirable ef
19. 33 10 56 PSI 55 439 413 367 330 302 PSI 65 471 435 386 368 339 PSI 75 489 457 403 381 362 TF ODT 57 53 47 43 37 33 27 23 17 13 C 13 89 11 67 833 611 2 78 0 56 2 78 5 8 33 10 56 55 3 03 2 85 2 53 2 28 2 08 65 3 25 3 00 2 66 2 54 253 75 3 38 3 15 2 78 2 63 2 49 Nn ees 57 53 47 43 37 33 27 23 17 13 13 89 11 67 8 33 6 11 2 78 0 56 2 78 5 8 33 10 56 64
20. 4 N CN3a Em RYS 9 C58 4 Lo RRI ED CN33 CN31 T E 21 jet CN34 Si EE IPM LA PTC1 qa 8 00000 a 2 gt 107 Rs EET gee D m N re 2 ZRe Forth 4 9008 CS 02 9 C15 24 E FN o0 Wa p A 10 i Ee cms AS XX 1 C p T R63 CO trae 105 R64 FFE O10 24 04 Fa GE ZRI 29553 61485 Re N 9 L IT p b L BEE 2 cote 19020 iss 25 R6S 827 ad r T Hen eu 892 XU 5 3 A 927 C23 ea fe we R7 RIB Oi mces 025 D I FAULT H QS MEEPOrdI E eg Eg ess U Iso LO Bo MG sv 15 2s ERE E 28 S EE 55 E17 3 043 RS 098 SE E A N IN eds m a mmm amp 828 Han MOM DER TAT RE EI Re teer pre 11 222 555 EIS Ki E16 NS R73 gpa 858 l 42 papa BE ga 88 E 52 pa FUSE 250 xx pace OG ES 3 i g G CN4 JRI Q o CONSU 85 CUN il IP o mg X7 So e ese IE Exhaust CNI6 TEMP ER E20 30 CE KFR70W BP2NIW 210 CIR SINGLE DWZL D 13 WP2 1 There s a LED light on the outdoor PCB which is blue color After power on it will be slow flash 0 2
21. 48 50 52 54 56 58 60 62 64 66 68 70 72 23 24 25 26 27 28 29 30 31 32 33 34 35 74 76 78 80 82 84 86 88 90 92 94 96 98 60 2 Compressor checking Measure the resistance value of each winding by using the tester Input Terminal O N D N Blue 1 2 Red 2 E ZEE Black Black 3 OG Eer y Red N S Position Resistance Value DA108X1C 23EZ DA108X1C 20FZ3 DA130M1C 31FZ DA150S1C 20FZ Blue Red 1 1O 0 710 1 77O 0 950 Blue Black 20 C 68 F 20 C 68 F 20 C 68 F 20 C 68 Red Blue 61 3 IPM continuity check Turn off the power let the large capacity electrolytic capacitors discharge completely and dismount the IPM Use a digital tester to measure the resistance between P and UVWN UVW and N Digital tester Normal resistance value Digital tester Normal resistance value Red Black Red Black N U co co U V P N V Several MO w Several W Red 4 Indoor AC Fan Motor Measure the resistance value of each winding by using the tester Input Terminal Ba Red N Red 1 Black 2 2 x White White 3 ak ot Y V VI Position Resistance Value RPG13B RPG15A RPG20B RPG28H RPG45B 5300 8 750 8 3810 8 183 60 8 1120 8 118 50 8 20 C 68 F 20 C 68 F 20 C 68 F 20 68 20 68 20 C 68 T Brand Brand Bran
22. 68 F DA2415 H2 I models Measure the black pin and red pin of the motor connector the resistance should be around 88 50 at 20 C 68 F 52 IFLUKE 17B DIGITAL MULTIMETER DIGITAL MULTIMETER E P V HOLD RANGE REL EET rra MATTER 53 10 4 8 Over voltage or too low voltage protection diagnosis and solution P1 Error Code 1 Malfunction decision An abnormal voltage rise or drop is detected by checking the conditions specified voltage detection circuit Supposed causes e Power supply problems 9 System leakade or block PCB faulty Trouble shooting Disconnect the unit with power CHEEK EINE power supply ig No Supply and try to restart the unit normal when power supply gets normal Yes Check if all the connections N Correct the connections or replace gt i and wires are good the wires Yes Y Power on and when the unit is in standby check if the voltage between P and N is around DC 310V or 340V or 380V For different m kinds of units the voltage differs No IPM board if it is separate 1 with main Consult with technical engineer to get definite value Then start up the unit measure the voltage between and N Is in 220V 400V Yes Y Replace outdoor main PCB Remark Measure the DC voltage between P and N port The normal value
23. red pin of the motor connector the resistance should be around 88 50 at 20 68 F Main parts check 1 Temperature sensor checking Disconnect the temperature sensor from PCB measure the resistance value with a tester Q Tester Temperature Sensors Room temp T1 sensor Indoor coil temp T2 sensor Outdoor coil temp T3 sensor Outdoor ambient temp T4 sensor Compressor discharge temp T5 sensor Measure the resistance value of each winding by using the multi meter 57 1 Temperature Sensor Resistance Value Table for T1 T2 T3 T4 c com lt v gt NEN JEE SES 15 spe SE 563 108 NE 7625 1881 413 NEL 6891 124 31847 EET 5 se pense s ven an s 89 9 15 518 same se 123 229 os ves 277 020916 Ge Jer eee se vos 250073 om osem 128 2 022776 5155 659 so e osse 02229 0 35982 0 35042 0 3413 0 33246 0 3239 0 31559 0 30754 0 29974 0 29216 0 28482 0 2777 0 27078 0 26408 EN 223 225 226 09 228 o 1 232 234 235 237 239 24 243 244 174 re ee 0 36954 248 250 252 253 255 257 259 261
24. should be around 310V 54 10 4 9 High temperature protection of compressor top diagnosis and solution P2 Error Code P2 Malfunction decision If the sampling voltage is not 5V the LED will display the failure conditions Supposed causes e Power supply problems 9 System leakade or block PCB faulty Trouble shooting Check if the air flow system of indoor and outdoor units Yes are obstructed Clear up the air inlet and outlet or the heat exchanger of indoor and outdoor units No Y Turn off the power supply and turn it on 10 minutes later Yes Y Check if all the connection especially Check if the No the connection of OLP Over Load No Correct the connection start normally Protector sensor is good Yes Yes Y Measure the resistance between the two ports of No Replace the OLP the OLP Is it zero Y Check if the refrigerant charge volume is normal No Yes Yes Replace the outdoor control PCB Refrigerant system is blocked such m Recharge the correct as capillary or welded point of pipes refrigerant volume 55 10 4 10 Inverter compressor drive error diagnosis and solution P4 Error Code P4 Malfunction decision An abnormal inverter compressor drive is detected by a special conditions dete
25. 0 F Keep the current freguency G Decrease the freguency to the lower level until to F1 H Run at F1 for 1h if T1 Ts AT gt 6 C the compressor will stop Meanwhile the compressor running frequency is limited bv the current l 4 Off BHEAT I Decrease J IPHEAT HHEAT J N Hold Resume 1 ISHEAT IZHEAT MHEAT mean different running current value Off Compressor stops Decrease Decrease the running freguency to the lower level Hold Keep the current frequencv Resume No limitation for frequencv Note When AC is in hold zone for 3 minutes the compressor freguency will rise to the higher level The freguency will increase twice at most 9 4 3 2 Outdoor fan running rules T1 1 Low 1718 62 618 1518 59 018 2217 1216 53 618 Ke 1018 50 018 High N For other models v 4 Low 17 15 High Y 9 4 3 3 Indoor fan running rules 32 If the compressor stops caused the room temperature rising the indoor fan will be forced to run 127 seconds with breeze During this period the anti cold wind is disabled If the machine runs in rating capacity test mode the indoor fan will run with rating speed and the anti cold wind function is disabled Auto fan action in heating mode Visie l 4 Low 2 2 3 Medium 1 5 High Y 9 4 3 4 Defrosting mode Condition of defrosting T4207 When the units are running if the following two items are satisfied the
26. 9 2 1 Icon explanation on indoor display board Signal receiver 2 L088 This indicator illuminates when the Defrost air conditioner starts defrosting Indicator automatically or when the warm air control feature is activated in heating mode Run Flash at 0 5Hz when the unit is indicator standby Illuminate when the unit is turned on Timer This indicator illuminates when indicator TIMER is set ON OFF Temperature indicator Displays the temperature settings when the air conditioner is operational Displays the malfunction code 28 9 3 Main Protection 9 3 1 Three minutes delay at restart for compressor 1 minute delay for the 1 time stand up and 3 minutes delav for others 9 3 2 Temperature protection of compressor top The unit will stop working when the compressor top temp protector cut off and will restart after the compressor top temp protector restart 9 3 3 Temperature protection of compressor discharge When the compressor discharge temp is getting higher the running frequency will be limited as below rules discharge temp T5 gt 115 C for 5s compressor stops 108 lt T5 lt 115 C decrease the frequency to the lower level everv 3 minutes 90 lt T5 lt 105 C keep running at the current frequency T5 lt 90 no limit for frequency 9 3 4 Fan speed is out of control When Indoor Fan Speed keeps too low 300RPM for certain tim
27. Hz when the unit is in standby and quick flash 2 5 2 if the unit has some problems 41 10 3 Diagnosis and Solution 10 3 1 EEPROM parameter error diagnosis and solution E0 F4 Error Code EO F4 Malfunction decision Indoor or outdoor PCB main chip does not receive feedback conditions from EEPROM chip Supposed causes e Installation mistake e faulty Trouble shooting Shut off the power supply and turn it on 5 seconds later Is it still displaying the error code Yes If the EEPROM chip is welded on main PCB replace the main PCB directly Otherwise check No p Correct the connection whether the EEPROM chip plugged in main PCB well Yes Y Replace the main PCB EEPROM a read only memory whose contents can be erased and reprogrammed using a pulsed voltage For the location of EEPROM chip please refer to the below photos Indoor PCB Outdoor PCB Note The two photos above are only for reference it s may be not same totally with the ones on your side 42 10 3 2 Indoor outdoor unit s communication diagnosis and solution E1 Error Code 1 Malfunction decision Indoor unit does not receive the feedback from outdoor unit during conditions 110 seconds and this condition happens four times continuously Supposed causes Wiring mistake e Indoor or outdoor PCB faulty Tro
28. While if the indoor unit has malfunction the voltage will be a certain value Remark Use a multimeter to test the resistance of the reactor which does not connect with capacitor The normal value should be around zero ohm Otherwise the reactor must have malfunction and need to be replaced 10 4 3 Zero crossing detection error diagnosis solution E2 Error Code E2 Malfunction decision conditions When PCB does not receive zero crossing signal feedback for 4 minutes or the zero crossing signal time interval is abnormal Supposed causes e Connection mistake e PCB faulty Trouble shooting Check if the connections and N Correct the connections Turn on the 0 9 power supply is normal unit when the power supply is good Yes v Indoor main PCB is main PCB defective Replace indoor 45 10 4 4 Fan speed has been out of control diagnosis and solution E3 Error Code Malfunction decision When indoor fan speed keeps too low 300RPM for certain time conditions the unit will stop and the LED will display the failure Supposed causes e Wiring mistake e Fan ass y faulty e Fan motor faulty e PCB faulty Trouble shooting Shut off the power supply And dum ona Seconds gt The unit operates normall
29. ction circuit including communication signal detection voltage detection compressor rotation speed signal detection and so on Supposed causes Wiring mistake IPM malfunction Outdoor fan ass y faulty Compressor malfunction Outdoor PCB faulty Trouble shooting Check if the wiring between main PCB and compressor connected by Yes Correct the connection or replace error and if the wires and connectors the wires and connectors are broken continuity check Check if the Replace the IPM board or replace the IPM terminal resistance values are No main PCB if the IPM board and main uniform Refer to page 64 are integrated together Yes Check if the outdoor fan runs please refer to the below remark check whether the properly or the outdoor unit No resistance of the fan motor is normal If not replace ventilation is good the fan motor Yes Y Check if the compressor resistance values are uniform Refer to page 63 Yes Y Replace the outdoor main PCB if the main PCB and IPM are separate No Replace the compressor Remark DA1215 H1 models Measure the black pin and red pin of the motor connector the resistance should be around 500 at 20 C 68 P DA1815 H2 models Measure the black pin and red pin of the motor connector the resistance should be around 84 50 at 20 C 68 F DA2415 H2 models Measure the black pin and
30. cy limit are active and the same as that in cooling mode 9 4 5 5 The outdoor fan operates the same as cooling mode 9 4 6 Forced operation function 9 4 6 1 Enter forced operation function When the machine is off pressing the touch button will carry the machine to forced auto mode If pressing the button once again within 5 seconds the machine will turn into forced cooling mode In forced auto forced cooling or anv other operation mode pressing touch button will turn off the machine 9 4 6 2 In forced operation mode all general protections and remote control are available 9 4 6 3 Operation rules Forced cooling mode The compressor runs at F2 frequencv and indoor fan runs as breeze After running for 30 minutes the machine will turn to auto mode as 24 C setting temperature Forced auto mode The action of forced auto mode is the same as normal auto mode with 24 C setting temperature 9 4 7 Timer function 9 4 7 1 Timing range is 24 hours 9 4 7 2 Timer on The machine will turn on automaticallv when reaching the setting time 9 4 7 3 Timer off The machine will turn off automaticallv when reaching the setting time 9 4 7 4 Timer on off The machine will turn on automaticallv when reaching the setting on time and then turn off automaticallv when reaching the setting off time 9 4 7 5 Timer off on The machine will turn off automaticallv when reaching the setting off time and then turn on automaticallv when
31. d Brand Brand Brand Broad Welling Welling Welling Welling Welling Ocean 31503896 1500x896 26704896 20601896 82034896 78 50 8 20 68 20 68 F 20 68 20 68 20 68 20 68F Welling Welling Welling Welling Welling Ocean 62 ODT 75 85 95 105 115 IDT 23 89 29 44 35 40 56 46 11 BAR 70 59 8 2 78 8 1 8 6 10 1 BAR 75 63 8 6 8 3 8 7 9 1 10 7 80 67 9 3 8 9 9 1 9 6 11 2 ODT 95 F C 75 23 89 85 29 44 105 40 56 115 46 11 IDT 35 PSI 70 59 119 113 117 125 147 PSI 75 63 124 120 126 132 155 PSI 80 67 135 129 132 140 162 F C ODT 75 23 89 85 29 44 105 40 56 115 46 11 2 I 35 i 70 59 0 82 0 78 0 81 0 86 1 01 75 63 0 86 0 83 0 87 0 91 1 07 80 67 0 93 0 89 0 91 0 96 112 75 23 89 85 29 44 95 35 63 105 40 56 115 46 11 2 70 59 75 63 80 67 F ODT 57 53 47 43 37 33 27 23 17 13 13 89 11 67 8 33 6 11 2 78 0 56 2 78 5 8 33 10 56 BAR 55 30 3 28 5 25 3 22 8 20 8 BAR 65 32 5 30 0 26 6 25 4 23 3 BAR 75 33 8 31 5 27 8 26 3 24 9 TF ODT 57 53 47 43 37 33 27 23 17 13 13 89 11 67 833 611 2 78 0 56 2 78 5 8
32. e the unit will stop and the LED will display the failure 9 3 5 Inverter module protection The Inverter module has a protection function about current voltage and temperature If these protections happen the corresponding code will display on indoor unit and the unit will stop working 9 3 6 Indoor fan delayed open function When the unit starts up the louver will be active immediately and the indoor fan will open 10s later If the unit runs in heating mode the indoor fan will be also controlled by anti cold wind function 9 3 7 Compressor preheating functions Preheating permitting condition If T4 outdoor ambient temperature lt 3C and the machine connects to power supply newly or if T4 lt 3 C and compressor has stopped for over 3 hours the compressor heating cable will work Preheating mode A weak current flow through the coil of compressor from the wiring terminal of the compressor then the compressor is heated without operation Preheating release condition If T4 gt 5 C or the compressor starts running the preheating function will stop 9 3 8 Zero crossing detection error protection If AC detects time interval is not correct for continuous 2406 the unit will stop and the LED will display the failure The correct zero crossing signal time interval should be between 6 13ms 9 4 2 9 Condenser temperature protection 55 C lt T3 lt 60 C the compressor frequency will decrease to the lower level until to F1 and th
33. edle does not move approximately 5 minutes after turning off the vacuum pump 5 Disconnect the charge hose from the vacuum pump 2 Refrigerant charging to check for gas leakage Indoor uni TZAN Liquid side 1 L EG Y Gas side L f 220 as si 9 Procedure 1 Connect the charge hose to the charging cvlinder open the 2 way valve and the 3 way valve Connect the charge hose which you disconnected from the vacuum pump to the valve at the bottom of the cylinder If the refrigerant is R410A make the cylinder bottom up to ensure liquid charge 2 Purge the air from the charge hose Open the valve at the bottom of the cylinder and press the check valve on the charge set to purge the air be careful of the liquid refrigerant 3 Put the charging cylinder onto the electronic scale and record the weight 4 Open the valves Low side on the charge set and charge the system with liquid refrigerant If the system cannot be charge with the specified amount of refrigerant or can be charged with a little at a time approximately 150g each time operating the air conditioner in the cooling cycle however one time is not sufficient wait approximately 1 minute and then repeat the procedure 5 When the electronic scale displays the proper weight disconnect the charge hose from the 3 way valve s service port immediately If the syst
34. em has been charged with liquid refrigerant while operating the air conditioner turn off the air conditioner before disconnecting the hose 6 Mounted the valve stem caps and the service port Use torque wrench to tighten the service port cap to a torque of 18N m Be sure 26 8 Operation Characteristics For the models with low temperature cooling system Temperature 1 1 Cooling operation Heating operation Drying operation Mode 217 C s30 C gt 10C Room temperature 62 F 86 F 50 F 0 50 32 F 122 15 C 50 C 15 30 0 50 C Outdoor temperature 5T 122 86T 32 122 CAUTION 1 If the air conditioner is used beyond the above conditions certain safety protection features may come into operation and cause the unit to operate abnormally 2 The room relative humidity should be less than 80 If the air conditioner operates beyond this figure the surface of the air conditioner may attract condensation Please set the vertical air flow louver to its maximum angle vertically to the floor and set HIGH fan mode 3 The optimum performance will be achieved during this operating temperature zone 27 9 Electronic Function 9 1 Abbreviation T1 Indoor room temperature T2 Coil temperature of evaporator T3 Coil temperature of condenser T4 Outdoor ambient temperature T5 Compressor discharge temperature 9 2 Display function
35. en deficiency could occur m When flammable gas leaks turn off the gas and open a window for ventilation before turn the product on B If strange sounds or smoke comes from product turn the breaker off or disconnect the power supply cable There is risk of electric shock or fire m Stop operation and close the window in storm or hurricane If possible remove the product from the window before the hurricane arrives There is risk of property damage failure of product or electric shock B 00 not open the inlet grill of the product during operation Do not touch the electrostatic filter if the unit is so eduipped There is risk of physical injury electric shock or product failure m When the product is soaked contact an authorized service center There is risk of fire or electric shock B caution that water could not enter the product There is risk of fire electric shock or product damage B Ventilate the product from time to time when operating it together with a stove etc There is risk of fire or electric shock B Turn the main power off when cleaning or maintaining the product There is risk of electric shock m When the product is not be used for a long time disconnect the power supply plug or turn off the breaker There is risk of product damage or failure or unintended operation B Take care to ensure that nobody could step on or fall onto the outdoor unit This could result in personal i
36. en runs at F1 If T3 lt 54C the compressor will keep running at the current frequency T3 lt 52 C the compressor will not limit the frequency and resume to the former frequency T3 gt 60 C for 5 seconds the compressor will stop until T3 52 C 9 4 2 10 Evaporator temperature protection T2 0 C the compressor will stop and restart when 2 gt 5 0 T2 4 C the compressor frequency will be limited and decreased to the lower level 4 CsT2s7 C the compressor will keep the current frequency T2 gt 7 C the compressor frequency will not be limited 9 4 Operation Modes and Functions 9 4 1 Fan mode 1 Outdoor fan and compressor stop 2 Temperature setting function is disabled and no setting temperature is displayed 3 Indoor fan can be set to high med low auto 4 The louver operates same as in cooling mode 5 Auto fan 1 1 1 4 27 5 High 27 Medium 2865 il EE 25 Y Low 9 4 2 Cooling Mode 9 4 2 1 Compressor running rules The maximum operation frequency of compressor after starting submits to following rule 41 4 45 43 40 Fmax F7 38 31 5 Fmax F8 29 5 22 Fmax F6 20 Fmax F3 1 The maximum operation freguency of compressor F1 F8 The detailed value of the compressor operation frequency 30 If users switch on AC by remote controller the compressor will run at the Fmax frequency for 7 m
37. equencv decreases to the lower level and runs for 20s 34 When the frequency decreases to F2 F1 for and the T2 is still over TEH2 C for 3 minutes the compressor will stop T2 lt 48 C or T2 stays 48 C TEH2 C for 6 minutes the frequency will not be limited by T2 2 gt 607 the compressor will stop and restart when T2 48 C 9 4 4 Auto mode This mode can be chosen with remote controller and the setting temperature can be changed between 17 30 C In auto mode the machine will choose cooling heating or fan only mode according to AT AT T1 Ts Indoor fan will run at auto fan of the relevant mode The louver operates same as in relevant mode If the machine switches mode between heating and cooling the compressor will keep stopping for 15 minutes and then choose mode according to T1 Ts If the setting temperature is modified the machine will choose running function again 9 4 5 Drying mode 9 4 5 1 Indoor fan speed is fixed at breeze and can t be changed The louver angle is the same in cooling mode 9 4 5 2 Compressor running rules ie RE ee 20 F2 10 F 0 0 1 9 4 5 3 Low indoor room temperature protection In drying mode if room temperature is lower than 10 C the compressor will stop and not resume until room temperature exceeds 12 9 4 5 4 Evaporator anti freezing protection condenser high temperature protection and Outdoor unit freguen
38. erate the vacuum pump to evacuate 6 Make evacuation for 30 minutes and check whether the compound meter indicates 300 MICRONS 14 5Psi If the meter does not indicate 300MICRONS 14 5Psi after pumping 30 minutes it should be 20 minutes more If the pressure can t achieve 300 MICRONS 14 5Psi after pumping 50 minutes please check if there are some leakage points Fully close the handle Lo valve of the manifold valve and stop the operation of the vacuum pump Confirm that the gauge needle does not move approximately 5 minutes after turning off the vacuum pump 7 Fully open the 2 way valve and 3 way valve and securely tighten the cap of the 3 way valve 2 CHARGING by refrigerant wa Ive X ose Ca e RO Wi N Hiep S IN CLOSE Charging cylinder IL 18 Procedure 1 Confirm that both the 2 way and 3 way valves are set to the OPEN position 2 Connect the charge set and charging cylinder to the service port of the 3 way valve AFTER VACUUM AND NITROGEN LEAK TEST 4 Check the gas leakage Check the flare connections for gas leakage 5 slowly open lo side manifold and introduce refrigerant by weight 6 Disconnect the charge set and the charging cylinder and set the 2 way and 3 way valves to the open position Be sure to use a metric hexagonal wrench to operate the valve stems 7 Mount the valve stems nut
39. eria fungi and microbes Biological enzyme kills bacteria by dissolving their cell wall thus eliminating the problem of re pollution e Golden Fin The Golden hydrophilic condenser can improve the heating efficiency by accelerating the defrosting process The unique anticorrosive golden coating on the condenser can withstand the salty air rain and other corrosive elements e Self Clean When this function is activated firstly the indoor unit operates as Fan only mode with low fan speed during this period the condensed water will take some dust on evaporator fins away After that the unit turns to heating operation with low fan speed which dries the inside of indoor unit Finally it turns to fan only mode and blows away the wet air The whole process cleans the internal side of indoor unit and prevents the breeding of bacteria e Follow me With this technology a temperature sensor is built in the remote control when you stay close to the remote control the unit will automatically change the operation mode to supply comfortable temperature just like the air conditioner is following you e Louver position memory function When starting the unit again after shutting down its louver will restore to the angle originally set by the user e Refrigerant leakage detect The refrigerant leakage detect function can better prevent the compressor being damaged by refrigerant leakage or compressor overload e Self diag Function Monitoring some abnormal o
40. fects as below Pressure in the system rises Operating current rises Cooling or heating efficiency drops Moisture in the refrigerant circuit may freeze and block capillary tubing Water may lead to corrosion of parts in the refrigerant system Therefore the indoor units and the pipes between indoor and outdoor units must be leak tested and evacuated to remove gas and moisture from the system DRY NITROGEN leak check Soap water method PRESSURIZE TO 500 PSIG Apply soap water or a liguid neutral detergent on the indoor unit connections or Outdoor unit connections by a soft brush to check for leakage of the connecting points of the piping If bubbles come out the pipes have leakage 1 Air removing with vacuum pump Indoor unit R Liquid side Outdoor unit Gas side Manifald valve Compound mete PN Pressure d Ti 0 1MP 4 O Handle 16 Charge hose Handle Hi Charge hose Vacuum pump Vacuum pump 6 1 Completely tighten the flare nuts of the indoor and outdoor units confirm that both the 2 and 3 way valves are set to the closed position 2 Connect the charge hose with the push of handle lo to the 3 wav valves gas service port 3 Connect the charge hose of handle hi 23 connection to the vacuum pump 4 Fully open the handle Lo of the manifold valve 5 Op
41. gnal that IPM send to compressor drive chip is abnormal the display LED will show PO and AC will turn off Supposed causes Wiring mistake IPM malfunction Outdoor fan ass y faulty Compressor malfunction Outdoor PCB faulty Trouble shooting Check if the wiring between main PCB and compressor connected by error and if the wires and connectors Yes Correct the connection or replace are broken No continuity check Check if the IPM terminal resistance values are uniform Refer to page 64 the wires and connectors Yes Check if the outdoor fan runs properly or the outdoor unit ventilation is good Yes Y Check if the compressor resistance values are uniform Refer to page 63 No v Replace the IPM board or replace the main PCB if the IPM board and main PCB are integrated together please refer to the below remark check whether the No resistance of the fan motor is normal If not replace the fan motor No Yes Y Replace the outdoor main PCB if the main PCB and IPM are separate Remark Replace the compressor DA1215 H1 models Measure the black pin and red pin of the motor connector the resistance should be around 2930 at 20 C 68 F DA1815 H2 I models Measure the black pin and red pin of the motor connector the resistance should be around 84 50 at 20 C
42. he outdoor unit Procedure 1 Confirm that both the 2 way and 3 way valves are set to the opened position Remove the valve stem caps and confirm that the valve stems are in the opened position Be sure to use hexagonal wrench to operate the valve stems 2 Connect the charge hose with the push pin of handle lo to the 3 way valves gas service port 3 Air purging of the charge hose Open the handle Lo valve of the manifold valve slightly to purge air from the charge hose for 5 seconds and then close it quickly 4 Set the 2 way valve to the close position 5 Operate the air conditioner at the cooling cycle and stop it when the gauge indicates 14 5Psi 6 Set the 3 way valve to the closed position immediately Do this quickly so that the gauge ends up indicating 0 3Mpa 43 5Psi to 0 5 Mpa 72 5Psi Disconnect the charge set and tighten the 2 way and 3 way valve s stem nuts Use a torgue wrench to tighten the 3 way valves service port cap to torgue of 18N m Be sure to check for gas leakage Procedure 1 Confirm that both the 2 way and 3 way valves are set to the closed position 2 Connect the charge set charging cylinder to the service port of the 3 way valve Leave the valve on the charging cylinder closed 3 Air purging Open the valves on the charging cylinder and the charge set Purge the air by looseni
43. injury B 86 caution when unpacking and installing the product Sharp edges could cause injury be especially careful of the case edges and the fins on the condenser and evaporator m For installation always contact the dealer or an authorized service center 30 not install the product on a defective installation stand B sure the installation area does not deteriorate with age If the base collapses the air conditioner could fall with it causing property damage product failure and personal injury B Do not let the air conditioner run for a long time when the humidity is very high and a door or a window is left open B care to ensure that power cable could not be pulled out or damaged during operation There is risk of fire or electric shock Do not place anything on the power cable There is risk of fire or electric shock B Do not plug or unplug the power supply plug during operation There is risk of fire or electric shock Do not touch operation the product with wet hands m 30 not place a heater or other appliance near the power cable There is risk of fire and electric shock B Do not allow water to run into electrical parts It may cause fire failure of the product or electric shock m Do not store or use flammable gas or combustible near the product There is risk of fire or failure of product m Do not use the product in a tightly closed space for a long time Oxyg
44. inutes according to the outdoor ambient temp During the 7 minutes the frequency limitation is active 7 minutes later the compressor running frequency will be controlled as below STS f 3 5 3 0 2 5 2 0 While the zones of A B C are corresponding to different compressor running frequency Note When T1 Ts keeps in the same temp zone for 3 minutes the compressor will run as the below rules A E Increase the frequency to the higher level until to 6 F Keep the current freguency G Decrease the freguency to the lower level until to F1 H Run at F1 for 1 T1 Ts 2 C the compressor will stop Meanwhile the compressor running freguency is limited by the current Off 136001 Decrease I2COOL Hold H COOL Resume I3COOL I2COOL I1 COOL mean different running current value Off Compressor stops Decrease Decrease the running frequency to the lower level Hold Keep the current frequency Resume No limitation for frequency Note When is in hold zone for 3 minutes the compressor frequency will rise to the higher level frequency will increase twice at most 9 4 2 2 Outdoor fan running rules T1 1 High 2818 82 418 2618 78 818 END 2218 71 618 Kodun 2018 68 018 a _ For other models T4 20 22 20 Low 9 4 2 3 Indoor fan running rules 31 In cooling mode indoor fan r
45. ir filter They are very sharp Do not step on or put anything on the product outdoor units m Always insert the filter securely Clean the filter every two weeks or more often if necessary A dirty filter reduces the efficiency of the air conditioner and could cause product malfunction or damage m Do not insert hands or other objects through air inlet or outlet while the product is operated B Do not drink the water drained from the product B Use a firm stool or ladder when cleaning or maintaining the product Be careful and avoid personal injury B Replace the all batteries in the remote control with new ones of the same type Do not mix old and new batteries or different types of batteries There is risk of fire or explosion m Donotrechargeor disassemble the batteries Do not dispose of batteries in a fire They may burn of explode m Ifthe liquid from the batteries gets onto your skin or clothes wash it well with clean water Do not use the remote of the batteries have leaked 2 Part Names And Functions 2 1 Model Names of Indoor Outdoor units Series Capacity Indoor units Outdoor units 12k DA1215 H1 DA1215 H1 O Inverter 18k DA1815 H2 DA1815 H2 O 22k DA2415 H2 DA2415 H2 O 2 2 Part names of Indoor Outdoor units Names of parts Indoor unit Front panel Air inlet filter outlet Horizontal air flow grille Vertical air flow louver inside
46. nect to the conperssor top temp sensor ov DC CNIS phe tenp sensor RT Correct TO REACTOR and CAPACITOR CNB CN37 CNS CN36 gt 0 3 3VAC s tancby 10760 VAC runring cross the current D uFFeh tropsforner CAPACITOR Voltage 290 340 0 standby 210 320VIC Running M ET AC FAN H DES U E Feen Sensor Exaust tenp sensor RT 19 Flashing once per secondklow speed flashing standby connect to detector Flashing once per half second thigh speed Flashing terror aways on Crunring LED 7 test port Rectlsler Voltage 290 340VDC standby 2109 3204 DC Running connect to the compressor OVAC standby 10 200VAC unning For DA1815 H2 O Rectifler Input Voltage Rectifler output Voltage the some as power supply 290 330 DC standby current transformer 208 230V 255 350 DC Gunning CNLXL D CNI2 N IND power supply 238 230 correct to the terminal GEEET PER RT 2 connect to the earth FUSE 24 14 250 TesaL 250vAC VDC Pulse wave betweene tCNI2 ONIS CNA CN7 CNS CN 7 TERMINAL 227 CN connect to REACTOR 2 cl wel 0 5 48 ACtstendbyd TOES U 2 d 5 50 ACrurning gt connect cutdoor FAN 1g ez 3 4 OVAC 208 230
47. ng the flare nut on the 2 way valve approximately 45 for 3 seconds then closing it for 1 minute repeat 3 times After purging the air use a torgue wrench to tighten the flare nut on the 2 way valve 4 Check the gas leakage Check the flare connections for gas leakage 5 Discharge the refrigerant Close the valve on the charging cylinder and discharge the refrigerant by loosening the flare nut on the 2 way valve approximately 45 until the gauge indicates 0 3Mpa 43 5Psi to 0 5 Mpa 72 5Psi 6 Disconnect the the charging cylinder and set the 2 way and 3 way valves to the open position Be sure to use a hexagonal wrench to operate the valve stems 7 Mount the valve stems nuts and the service port cap Be sure to use a torgue wrench to tighten the service port cap to a torgue 18 Be sure to check the gas leakage 7 7 Re installation while the outdoor unit need to be repaired 1 Evacuation for the whole system 25 indoor unit Y NZ Liquid side E 7 N Vi 47 Se ZZ Procedure 1 Confirm that both the 2 way and 3 way valves are set to the opened position 2 Connect the vacuum pump to 3 way valve s service port 3 Evacuation for approximately one hour Confirm that the compound meter indicates 0 1Mpa 14 5Psi 4 Close the valve Low side on the charge set turn off the vacuum pump and confirm that the gauge ne
48. nits 022000 Re ee ee Re ee hias S 5 2 3 Functions of Indoor Outdoor units nn RA 6 Kal EE 8 3 1 Indoor Unit EE EE EE 8 3 2 Outdoor UNIE eS 9 5 Refrigerant Cycle Diagram eie EE ER RR ee Pe ne ee ee Ge bee ene se Veg En 12 6 Wiring Dia Gran uuu l REDE I GE OO Ee Saa eg 14 6 1 Indoor tnt ae EE 14 EE telen EE 16 7 Installation Details Eessen 22 re ONS CUM he cables EEN 22 7 3 Pipe length and the elevation nn 22 7 4 Installation f r ihe firstti 23 7 5 Adding the refrigerant after running the system for many years 24 7 6 Re installation while the indoor unit need to be 24 7 7 Re installation while the outdoor unit need to be 25 8 Operation Characteristics AR ER AR KRAAK ERA ER uu u uu uu u uu u 27 9 Electronic Funt hon VR nh rs ee N 28 SaN eKA lee KEE 28 9 2 DISplay TUFICUOr Ra kata tA eases saa 28 9 3 Main Protection ON VA PDA PA a 29 9 4 Operation Modes and Functions is 30 10 Troubleshooting SEE 37 10 1 Indoor Unit Error Dis
49. njury and product damage gt CAUTION m Always check for gas refrigerant leakage after installation or repair of product Low refrigerant levels may cause failure of product Install the drain hose to ensure that water is drained away properly A bad connection may cause water leakage m Keeplevel even when installing the product It can avoid vibration of water leakage B Do not install the product where the noise or hot air from the outdoor unit could damage the neighborhoods It may cause a problem for your neighbors m Use two or more people to lift and transport the product B Do not install the product where it will be exposed to sea wind salt spray directly It may cause corrosion on the product Corrosion particularly on the condenser and evaporator fins could cause product malfunction or inefficient operation gt Operational Do not expose the skin directly to cool air for long time Do not sit in the draft B Do not use the product for special purposes such as preserving foods works of art etc It is a consumer air conditioner not a precision refrigerant system There is risk of damage or loss of property m Do not block the inlet or outlet of air flow m Use a soft cloth to clean Do not use harsh detergents solvents etc There is risk of fire electric shock or damage to the plastic parts of the product B Do not touch the metal parts of the product when removing the a
50. output 209 433 208 230 connect L A BROWN Relay Dutpje 208 230V cross the current tropsformer CNe connect to the eEFth T Sen A Jf connect o the conperssor serp 8 75 VI ov DC EX corre current transformer the Foley output wire cross this component CAPACITER Voltage 290 330VDC standby 210 200VDC Cunning currert transforner TERMINAL connect TO REACTOR and CAPACITOR CNi CN3 0 0 2VAC S tancbyOrS0VACCrunning CN2 CN3 0 0 5 VACCetandbylg 2 S0 V ACCrunning r CN3 YELLOW CAPACITOR Voltage Is the same to test RIS voltage Rectifier Voltage 290 330 0 standby 205 240v standby 210 300 0 Running 210 300 IC Running Gil ran CN19 D Se CZA CL OO 2 ss Pe rZ MANN LLLA ENE H 55 55 E 6 gt Go ew lo ENGS Signal connect to the terninal 24VDC Pulse wave betveene CNS CN7 gt 21 CN16 4 3 ter sensor pe Se Flashing once per secondKlow speed flashing standby Flashing once per half second lt Hgh speed Flashing error aways on running connect to the compressor OVAC standby 10 P90VAC
51. perations or parts failures microcomputer of the air conditioner will switch off and protect the system automatically Meanwhile the error or protection code will be displayed on the indoor unit e PTC heating belt With a PTC heating belt fitted on the base plate of the outdoor unit the rain snow or defrosted water accumulating on the base plate is avoided e Compressor crankcase heater The oil dissolves easily in refrigerant especially in low temperature condition The crankcase heating belt can heat the bottom of the compressor to avoid pumping out too much oil with the refrigerant which helps to protect the compressor 3 Dimension 3 1 Indoor Unit Model D H DA12 H1 I aemm eomm 30 3in 7 41 10 0 DA18 H2 I 905mm Fromm 35 6in 7 8in 10 8in DA24 H2 I SUM 40 8 6in 12 4in
52. play o 38 10 2 Outdoor ds 39 10 3 Diagnosis and SolUti6na EE RE E es Du Re EE GEE RE 42 1 Precaution 1 1 Safety Precaution B To prevent injury to the user or other people and property damage the following instructions must be followed B Incorrect operation due to ignoring instruction will cause harm or damage m Before service the unit be sure to read this service manual at first 1 2 Warning Installation B Do not use a defective or underrated circuit breaker Use this appliance on a dedicated circuit There is risk of fire or electric shock B For electrical work contact the dealer seller a gualified electrician or an authorized service center Do not disassemble or repair the product there is risk of fire or electric shock B Always ground the product There is risk of fire or electric shock B Install the panel and the cover of control box securely There is risk of fire of electric shock m Always install a dedicated circuit and breaker Improper wiring or installation may cause electric shock m Use the correctly rated breaker of fuse There is risk of fire or electric shock 30 not modify or extend the power cable There is risk of fire or electric shock B Do not install remove or reinstall the unit by yourself customer There is risk of fire electric shock explosion or
53. s and the service port cap Be sure to use a torgue wrench to tighten the service port cap to a torque 18N m Be sure to check the gas leakage 7 5 Adding the refrigerant after running the system for many years NU Procedure 1 Connect the charge hose to the 3 way service port open the 2 way valve and the 3 way valve Connect the charge hose to the valve at the bottom of the cylinder If the refrigerant is R410A make the cylinder bottom up to ensure liquid charge 2 Purge the air from the charge hose Open the valve at the bottom of the cylinder and press the check valve on the charge set to purge the air be careful of the liquid refrigerant 3 Put the charging cylinder onto the electronic scale and record the weight 4 Operate the air conditioner at the cooling mode 5 Open the valves Low side on the charge set and charge the system with liquid refrigerant 6 When the electronic scale displays the proper weight refer to the gauge and the pressure of the low side disconnect the charge hose from the 3 way valve s service port immediately and turn off the air conditioner before disconnecting the hose 7 Mount the valve stem caps and the service port 24 Use torque wrench to tighten the service port cap to a torque of 18N m Be sure to check for gas leakage 7 6 Re installation while the indoor unit need to be repaired 1 Collecting the refrigerant into t
54. the module memorizes the setting conditions before the power failure The unit will resume the previous operation setting not including swing function automatically after 3 minutes when power returns If the memorization condition is forced cooling mode the unit will run in cooling mode for 30 minutes and turn to auto mode as 24 C setting temp If AC is off before power off and AC is required to start up now the compressor will have 1 minute delay when power on Other conditions the compressor will have 3 minutes delay when restarts 9 4 10 8C Heating optional In heating operation the preset temperature of 36 the air conditioner can be as lower as 8 which keeps the room temperature steady at 8 C and prevents household things freezing when the house is unoccupied for long time severe cold weather 10 Troubleshooting Safety Electricity power is still kept in capacitors even the power supply is shut off Do not forget to discharge the electricity power in capacitor Electrolytic Capacitors HIGH VOLTAGE CAUTIONI For other models please connect discharge resistance 1000 40W or soldering iron plug between terminals of the electrolytic capacitor on the contrary side of the outdoor PCB Discharging position Discharging period 10 seconds or more Plug of ri soldering Le iron Note picture above is only for reference The plug of your side
55. uble shooting Power off then turn on the unit 5 seconds later reconnect the power wire Is the error still displaying after several minutes Yes Y Measure Vs is it moving alternately with positive value Vs is the voltage between L2 and S of outdoor unit Connect the red pin of multimeter with L2 port black pin with S port No Yes Check all the wiring with outdoor units Is the wiring to the outdoor main PCB connected correctly Is the reactor connected well Yes Y Measure the resistance of the reactor The one without capacitor If it is zero follow the below step If not replace a new reactor Check all the wiring with indoor units Is the wiring to the indoor main PCB connected correctly Yes v v Replace the outdoor main PCB Replace the indoor main PCB v v Power on Is the error extinguished Power on Is the error extinguished No No Y Y Replace the indoor main PCB Replace the outdoor main PCB 43 Remark Use a multimeter to test the DC voltage between L2 port and 5 port of outdoor unit The red pin of multimeter connects with L2 port while the black pin is for 5 port When AC is normal running the voltage will move alternately between 50V to 50V If the outdoor unit has malfunction the voltage will move alternately with positive value
56. units start defrosting The units run with T3 lt 3 for 40 minutes and T3 keeps lower than TCDI C for more than 3 minutes The units run with T3 lt 3 C for 80 minutes and keeps lower than TCDI 2 C for more than minutes 4 lt 0 If the 1 condition and 2 condition items satisfied then the program judges if T2 has decreased more than 5C When 2 has decreased more than 5C enter the defrosting mode No matter what value T4 is if the machine runs with T3 lt 3 C for more than 120 minutes and keeps lower than TCDI 4 C for more than 3 minutes the machine will enter defrosting mode no matter if T2 drops more than 5 C or not Condition of ending defrosting If any one of the following items is satisfied the defrosting will finish and the machine will turn to normal heating mode 33 T3 rises to be higher than TCDE1 C T3 keeps to be higher than TCDE2 C for 80 seconds The machine has run for 10 minutes in defrosting mode Defrosting action For 9k 12k models Frequency F2 gt FrequencyF8_ on Compressor 4 way valve Outdoor fan Indoor fan 10s Indoor fan breeze 10s XX jo 10s no longer than 10m 305 xx 60s For 18k 22k models Frequency F2 Frequency F8 on Compressor off on 4 way valve off on
57. uns all the time and the speed can be selected as high medium low and auto Auto fan in cooling mode acts as follow 11 15 1 4 4 High 3 Medium 15 1 e A Y Low 9 4 3 Heating Mode 9 4 3 1 Compressor running rules The maximum operation frequency of the compressor after starting submits to the following rule 14 v 1 34 Off 33 28 Fmax F2 27 25 Fmax F3 24 m Fmax F4 19 18 Fmax F5 H Fmax F6 16 15 14 12 11 Fmax F8 I 6 5 Fmax F9 1 Fmax F10 Fmax The maximum operation frequency of compressor F1 F8 The detailed value of the compressor operation frequency If users switch on AC by remote controller the compressor will run at the Fmax freguency for 7 minutes according to outdoor ambient temp During the 7 minutes the freguency limitation is active 7 minutes later the compressor running freguency will be controlled as below 1 5 41 1 4 5 0 H 45 3 5 x 9 43 0 F 25 pO 2 0 D i JE 1 0 B N 40 5 A 1 While the zones of A B C are corresponding to different compressor running freguency AT 0C as default Note When T1 Ts keeps in the same temp zone for 3 minutes the compressor will run as the below rules A E Increase the frequency to the higher level until to F1
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