Service Manual DCT 35 INV-S
Contents
1. T4 Ambient temp sensor High pressure switch 4 way valve Condenser Electronic expansion valve Condenser temp sensor a T3 S 4 Filter Capillary Filter j Evaporator T5 4 Discharge temp sensor Low pressure switch Compressor Low pressure liquid accumulator Outdoor unit CCT 90 INV So CFT 90 INV Ro DCT 90 INV So CCT 100 INV So 1 CFT 100 INV Ro 1 DCT 100 INV So 1 CCT 100 INV So CFT 100 INV Ro DCT 100 INV So CCT 140 INV So 1 CFT 140 INV Ro 1 DCT 140 INV So 1 CCT 140 INV So CFT 140 INV Ro DCT 140 INV So CCT 170 INV So CFT 170 INV Ro DCT 170 INV So DHP 170 INV Ro Indoor unit 126 Condenser SC Electronic Cr denser temp sensor expansion valve tortemp sensor High pressure switch T OOOO Filter Capillary Filter 7 Room temp sensor T5 T4 Discharge temp sensor Oil separator Ambient temp sensor _4 valve Filte A Oil return J Capillary P2. S ORANGE POWER mO ennn ennen nn R1815B BOARD E m RECTIFILERI gi RED CONNECTOR NEEN 70 5 70 70 5 Au OMS ELECTRONIK 2204749006 ENS He VALVE TEMPER SENSOR Tu TEIPERATURE SENSOR Klek amen ENP YELLOW YELLOW HIGH PRESSURE SWITCH COMPRESSOR RED RED LOW PRESSURE SWITCH 22 l CNI CE RED RED a YELLOWEREEH x ui d IL dh HEHE 218158 i 1 4 d E BLACK CONNECTOR 5 5 RED CL WHITE ZEN 1 128 TLC 1 2011 1 CCT 100 INV So CFT 100 INV Ro DCT 100 INV So WIRING DIAGRAM OUTDOOR UNIT 202075590212 ggg Es ev ntcme onse La ALL Suus gt 5 ron acconractor REA REACTOR RES1RES2 RESISTANCE CONDENSER TEMPERATURE SENSOR Pye OUTDOOR AMBIENT TEMPERATURE SENSOR 7 ___ SMALL 3 WAY TERMINAL Code for Outdoor unit
3. b Service Manual MODEL DCT 35 INV Si DCT 50 INV Si DCT 70 INV Si 100 INV Si DCT 140 INV Si DCT 170 INV Si TLC I 2011 1 Pare T uu uuu aTa 1 Part 2 e Le tele Tu E Parts Outdoor HTC Part 5 eiit nod Part o Control beets eenheden Uren Manufacture reserves the right to discontinue or change at any time specifications designs without notices and without incurring obligations TLC I 2011 1 Part 1 General Information 1 Model Names of Indoor Outdoor Units 2 2 External Appearance 4 3 uu u uuu u u L u i 6 4 Features 2011 1 1 Model Names of Indoor Outdoor Units 1 1 Indoor Units Model name ei Power supply DCT 35 INV Si 220 240V 1ph 50Hz pero 220 240V 1ph 50Hz POTES 220 240V 1ph 50Hz BET OOS 220 240V 1ph 50Hz ENE 220 240V 1ph 50Hz 220 240V 1ph 50Hz BEONE 220 240V 1ph 50Hz CFT 35 INV Ri 220 240V 1ph 50Hz CFT 50 INV Ri 220 240V 1ph 50Hz CFT 70 INV Ri 220 240V 1ph 50Hz CFT 90 INV Ri 220 240V 1ph 50Hz CFT 100 INV Ri 1280 x203x 660 37 42 220 240V 1ph 50Hz CFT 140 INV Ri 1670 240 680 52 59 220 240V 1ph 50Hz CFT 170 INV Ri 1670 240 680 52 59 220 240V 1ph 50Hz CCT 50 INV Si 220 240V 1ph 50Hz C
4. OUTER PIPE TEMP pt id g F4 com Bus 72 MIDDLE PIPE TEMP i Es 2 1 4 NOTE PLEASE USE SHIELDER WIRE FOR COMM BUS WIRE saman xs1 4 CONNECTORS REMOTE AND THE SHIELD LAYER CONNECTS E CONTROL TR TRANSFORMER CN3 CN4 ad i Ku o ss m 53 TLC I 2011 1 DCT 50 INV Si DCT 70 INV Si DCT 90 INV Si DCT 100 INV Si DCT 140 INV Si DCT 170 INV Si CODE TITLE TR DISPLAY BOARD ef 12 IMIDDLE PIPE TEMP CONNECTORS I gamana en ENC2 ji 51 52 ee EE hi FUNCTION OF SWITCH SW1 FOR INDOOR UNIT ENC2 SWITCH ADDRESS O F of the S2 and ON OFF of the 51 mean the addresses of the different units respectively 51 FOR CCM UNIT 52 SWITCH ADDRESS MAIN BOARD DE of the S2 and ON OFF of the S1 mean the addresses of the different units respectively ENC1 ao FOR POWER NUMBER POWER 2200W 71 gt 4 54 I 3606 4500W ON 5600W 7 9000W 10000W r 2 udis i i i i Lani Ke ERROR i TO CCM TO OUTDOOR INDOOR POWER OUTPUT ii COMM BUS COMM BUS
5. Sie l l i h iil d Dn d HIE 1 ET d 6 LE HI dy T R mm i 1 END D T HHI T TE Unit mm MODEL CCT 301 INVo CFT 35 INV Ro DCT 35 INV So CCT 501 INVo CCT 50 INV So CFT 50 INV Ro DCT 50 INV So CCT 70 INV So CFT 70 INV Ro DCT 70 INV So CCT 90 INV So CFT 90 INV Ro DCT 90 INV So CCT 100 INV So 1 CFT 100 INV Ro 1 DCT 100 INV So 1 CCT 100 INV So CFT 100 INV Ro DCT 100 INV So CCT 140 INV So 1 CFT 140 INV Ro 1 DCT 140 INV So 1 CCT 140 INV So CFT 140 INV Ro DCT 140 INV So CCT 170 INV So CFT 170 INV Ro DCT 170 INV So DHP 170 INV DHP170INV Ro 124 TLC 1 2011 1 2 Service Space Obstacle Deep foundation Maintain channel gt 60 S M d H outlet 125 3 Piping Diagrams CCT 301 INVo CFT 35 INV Ro DCT 35 INV So TLC I 2011 1 Capillary 55 Condenser 4 NN 4 way Valve Evaporator Compressor Outdoor unit Indoor unit CCT 501 INVo CCT 50 INV So CFT 50 INV Ro DCT 50 INV So CCT 70 INV So CFT 70 INV Ro DCT 70 INV So
6. Filter 8 Low pressure liquid witen accumulator Outdoor unit Indoor unit TLC 1 2011 1 4 Wiring Diagrams CCT 301 INVo CFT 35 INV Ro DCT 35 INV So UE 1 202037390218 HEAT EXCHANGER SENSOR N E OLP TEMP SENSORR MBIENT SENOR eee ee aisen OPTIONAL HEATER CN16IOOO_ 5 OQ DISCHARGE SENSOR YIG eo De 2 1 YELLOW ef Ee E V qu C mmm 1 841 1 W OUTDOOR Pise D LN 50 RY3 MO E Il LN Sept ii I m dy COMPRESSOR RED 0 YIG lt CN3 CN2 9 5 YELLOW Sk FAN E P REACTOR2 R6025 FRANCE REACTOR1 R1310 E TN ORANGE N YELLOW OUTDOOR WIRING DIAGRAM iis 127 TLC 1 2011 1 CCT 501 INVo CCT 50 INV So CFT 50 INV Ro DCT 50 INV So EXPANSIVE EXHAUST VALVE TEMPER SENSOR i 202075290110 em D TEMPERATURE SENSOR OUTDOOR WHITE 9 7 AMBIENT TEMP SENSOR YELLOW YELLOW HIGH PRESSURE SWITCH RED REI LOW PRESSURE SWITCH COMPRESSOR SE EE lt lt EF E E SPS SPECS SSS SSS CEE TE ET ET m
7. Outline d Air return size Ge 5050 ae 6252 s 25 d de di atat ON UNES atta ebe 262525 0000000060 dw e ie ei L d aate d 5 ae ita ttt tg i MMC d t dod dde db dod de Py EE e OCH fete cm e 25 25 ee e S t e Ce e Ge 2 iti 25 e Ce ste Ge de gt Vi Gr Ge Ge 5 x5 Ce Me x dt d 252 Wie m ee e A matta Ce Ge A ef Co Con Gei gt Wie wie Ce d ek y be de 526000 eee NOCH NN dee w s siih Wie 5 05 e ata dv ate e de e e 25 Ce ee d e e e e de 5 25 CO ate 2525 5 255 at Oo e e lati ional venti f descens size o Pos Air filter b
8. amp Capillary amp Capillary Design pressure Hi Low MPa 4220 4 4220 0 4 4220 4220 Liquid side Gas side 9 5 15 9 9 5 15 9 refrigerant pipe length Refrigerant Max difference level Outdoor piping is up Max difference in level Outdoor is down 2 Connection wiring e Wired controller Indoor standard Cooling 15 43 7 Cooling 15 43 Optional Low Ambient Kit included Cooling operation range without it 7 to 43 C Signal wiring Drainage water pipe dia Indoor 48 TLC I 2011 1 Model GR Ph 50Hz Ph 50Hz Ph 50Hz EH DCT 140 INV So 1 INV So 1 DCT 170 INV So oor a8 sw NBSOFFNM meeer ype Rotary DC verter Sorot DC mere Capacity Btu h 394200 337100 4740 KEE EE r arar we MM 10uF 596 450V 10uF 596 450V 10uF 5 450V paNumberofrows 4 4 cm erns CT ts nor coi Tino os s 8 EC e m o Sound level sound pressure 47 1 45 3 42 9 47 1 45 3 42 9 47 3 45 2 43 1 Dimension WxHxD TN 1200x300x865 1200x300x865 1200x300x865 Indoor unit REM 49 2011 1
9. Check the voltage of outdoor unit power supply whether the voltage No Check the power suppl between L 1 and N is about 172 265V pply Yes Yes Replace the power board then check whether the system can run normally Replace outdoor main board 7 E6 malfunction Only for 30K 36K amp 48K with 1 phase E6 display PFC module protection Check whether the connecting line between main No board and the PFC module is connected tightly Connect it tightly check normal or not No Yes Check whether the voltage between YS Replace the outdoor main board No Replace the PFC module 158 TLC I 2011 1 8 P1 malfunction 1 display High pressure protection Judge 1 Whether the wiring between the high pressure switch and main No control board is connected well or correctly Connect it well Yes Judge 2 Whether the high pressure switch is broken Yes Method Short connect the high pressure switch socket check Replace high pressure switch whether the system can run normally No Check whether the refrigerant system is ok Yes Judge 3 Check whether the outdoor ambient temperature is too high Stop the unit No Yes Judge 4 Check whether the outdoor unit is bad ventilation Make the outdoor unit ventilate well No Yes Judge 5 Check whether the heat exchanger is dirty Clean the heat exchanger No Yes Let the refrigerant out then use the high pressure ee
10. Display wattuncion or Protoon En EEPROM malfunction Communication maltunctan between indoor outdoor units Communication maltuncion of outdoor unit controller Outdoor unit temperatur sensor malfunction SUSPEN REA of 9616 Te d temperature protection COMMUNICATION BUS SE OUTDOOR UN POWER EASE USE SHIELDED WIRE temperature protection Inverter module protection 140 5 140 140 5 170 5 170 170 5 COMP WIRING DIAGRAM OUTDOOR UNIT 202075790151 crue current DETECTOR ELECTRIC EXPANSIVE CRANKCASE HEATING HPRO HIGH PRESSURE SWITCH r ma sm TRANS 1 TRANS 2 TRANSFORMOR CONDENSER TEMPERATURE SENSOR OUTDOOR AMBIENT ITEMPERATLIRE SENSOR own DISCHARGE X51 X52 CONNECTOR 1 2 CONNECTOR xn 4 WAY TERMINAL xz SMALL TERMINAL Malfuncti n Code hor Outdoor unit Malfursction er Protecbon EEPROM malfunction Communicabon malfunttion between indear autdoaor units Communicalion malluncban of outdoor unit Chutdoor unit temperature Sono malunch
11. 185 120 185 120 185 120 capa ae eee G Finspacng Finspacng Be E Outdoor coil aluminum aluminum aluminum 9 53 Inner 9 53 Inner 9 53 Inner Tube outside dia and type grooved copper grooved copper grooved copper ET tube tube IHR Sound level sound pressure Hi Low rNevGrossweight mem nsa _ We mw _ Electronic Throttle type expansion valve amp E expansion valve amp Capillar Design pressure Hi Low 4 2 2 0 4 2 2 0 4 2 2 0 Liquid side Gas side Imm 9 5 15 9 5 15 9 5 15 9 E pipe length PIPING level Outdoor IS Up TENE 5 pm Connection Power wiring Outdoor rr 3 2 5 525 525 US 3 core shield wire 3 core shield wire 3 core shield wire Signal wiring a 5 Drainage water pipe dia Indoor Wired controller Indoor standard E eend KJR 10B DP T En 10B DP T r 10B DP T Operation temp Indoor 000000 temp Indoor 17 17 30 17 1730 17 1730 Cooling 15 43 Cooling 15 43 Cooling 15 43 nsn Heating 15 24 Heating 15 24 Heating 15 24 Optional Low Ambient Kit included Cooling operation range without it 7 to 43 C 50 TLC 1 2011 1 3 D mm Un imension an imensions ir outlet size
12. 2v on 196 or es 23 es 24s eos 250 772 228 705 20 s oso es 251 ers 23 zs 216 s 7s 24 oso 253 242 s 2 79 200 oe oso 23 oso 2 oso 244 234 ss 223 7s 202 Outdoor air temp 59 TLC I 2011 1 DCT 100 INV Si matched with DCT 100 INV Si 1 outdoor unit Cooling Indoor temperature C WB um 24 00 ey P Pr TG KW KW kW kW KW KW KW KW KW KW KW kW w w oo 727 ss 146 162 1050 176 1140 190 1135 190 159 re zoo 727 111 858 138 990 165 1050 179 1110 193 11 35 194 1159 196 1400 727 113 858 141 990 168 1050 183 1140 197 1135 197 1159 199 eoo 727 115 858 143 9 90 171 1050 186 1140 200 1135 2 01 1159 203 1800 727 117 858 146 9 90 174 1050 189 1110 204 1135 204 1159 206 190 727 119 858 148 990 177 1050 192 140 207 11 35 208 1159 210 aoo 727 127 858 159 990 190 1050 206 1110 222 1135 223 1159 225 2800 727 136 858 170 9 90 204 1050 221 1110 238 1135 239 1159 241 2500 727 146 858 182 9 90 218 1050 236 1110 255 1135 256 1159 258 727 156
13. 55 95050505090 ooo 050505050909 55555695266 DR RIK ot bo O9 0090000606000 06060 006060600 bo Wie 052525052505 052505052505 eee ete QoS ooo OO SS ele s 052505 PSS gt Electric control cabinet Size of mounted lug E 5 8 E i S D Air outlet size Air return size Size of mounted lug A B C DI E K L M Outline dimension 350 CN LO O T T LO 8 T N 8 cO B N LO LO B cO CN 8 O T 2 CN 179 51 TLC I 2011 1 4 Service Space 200mm or more 300mm or more x N Le 600mmX600mm checking orifice 52 TLC 1 2011 1 5 Wiring Diagrams DCT 35 INV Si 202070190017 NS TO WIRE CONTROLLER NSS ST ER of the 52 and ON OFF of the 51 mean the Addresses of the different units Respectively CO 1 MAIN BOARD POWER TO OUTDOOR POWER ys CONNECT TITLE FAN MOTOR PUMP MOTOR ti WATER LEVEL SWITCH HIGH FAN ER SUPER HIGH FAN s
14. ooe 280 om os sss 1o sss 100 3 0 225 297 om 22 10 101 3s 100 aw r e pse tor se tor ace om ss om o ro sw 1o se se 102 e 100 oss ss om oe se 097 ss 10 3e om se 0 37 74 ser sor sw ae see oss sor o7 Outdoor air temp 56 TLC I 2011 1 DCT 50 INV Si Cooling Indoor temperature C WB 24 00 lu PL Tc WIE S CSL REEN PI Tc PI Tc om 054 068 497 081 528 oss 557 oss 569 095 582 096 200 345 055 431 069 497 083 528 090 557 097 569 0 97 582 098 365 056 431 070 497 084 528 O91 557 098 569 099 5 82 100 eoo 345 059 431 O74 497 049 528 096 5 57 104 569 104 582 105 167 192 Heating Indoor temperature C DB e Is Los _ xi EUCEEC NE HEUR or pem es vse vas KEN a35 KEN gt e se 1s ses s 0 ses z eo KEN 7s se se s se vs ses var 539 140 KEN sw se ses s ses ve ses 142 KEN KEN 492 KEN Outdoor air tem
15. NOTE PLEASE USE SHIELDER WIRE FOR COMM BUS WIRE 41 202070390385 AND THE SHIELD LAYER CONNECTS i 54 TLC 1 2011 1 6 Air Velocity and Temperature Distributions outlet Airflow velocity Temperature p m cem dim eccL Om 4m 3m em im im cm 3m 4m 55 TLC I 2011 1 7 Capacity Tables DCT 35 INV Si Cooling Indoor temperature C WB c 24 00 refr am 222 034 272 043 322 051 352 055 368 060 376 060 383 06 0 68 250 _ 222 044 272 055 322 066 352 072 368 077 376 078 383 078 222 066 272 082 322 098 352 144 368 115 376 115 363 116 222 066 272 082 322 098 352 144 368 115 376 115 383 117 Heating Indoor temperature C DB m a z z _ m m P r P cow cwe w ww Jw ww aw ww ww mw as esa oes oss 24 23 21 or 260 268 os 268 257 zar ose 228 os ose zs oo 282 0 277 9 08 248 om ze so so zs o9 or 097 333 3s vor 320 0
16. m um 24 00 We P Pr KW KW kW kW KW KW KW KW KW KW KW kW w w oo 109 1 990 162 1055 176 1140 190 was 150 1159 198 1200 727 1 11 858 138 990 165 1055 179 1140 193 11 35 194 1159 196 1400 727 113 858 141 920 168 1055 183 1140 197 1135 197 1159 199 1600 727 115 858 143 990 171 1055 186 1140 200 1135 2 01 1159 203 1800 727 117 858 146 990 174 1055 189 1110 204 1135 204 1159 206 190 727 119 858 148 990 177 1055 192 1140 207 1135 208 1159 210 727 127 858 159 990 190 1055 206 1110 222 1135 223 1159 225 2800 727 136 858 170 9 90 204 1055 221 1110 238 1135 239 1159 241 2500 727 146 858 182 990 218 1055 236 1110 255 1135 256 1159 258 gzoo 727 156 858 195 990 233 1055 253 1110 272 1135 273 1159 276 2900 727 167 858 208 990 249 1055 270 1110 291 1135 292 1159 295 soo 727 178 858 222 990 265 1055 288 1110 310 1135 311 1159 314 3300 727 1 89 858 236 990 288 1055 306 1110 330 1135 331 1159 928 ssoo 727 201 858 251 990 30 1055 327 1110 351 1135 353 1159 3 56 azo 727 214 858 26
17. vaer 1262 s 350 ss s 1500 ace 1881 357 1262 1600 372 1500 1500 vaar 1262 Outdoor air temp 62 TLC I 2011 1 DCT 140 INV Si matched with DCT 140 INV Si outdoor unit Cooling Indoor temperature C WB Nm 24 00 We m _ KW KW KW KW KW kW kW KW MW kW kW kw KW w 4 44 5 07 Heating Indoor temperature C DB s E ww ew ow oe ow or 1323 see see see 1218 EEN 7 152 52 4 WENEN sos 1262 o 79 394 402 1262 952 se 1624 372 1526 1624 see sz 254 1262 320 Outdoor air temp 63 TLC I 2011 1 DCT 170 INV Si Cooling Indoor temperature C WB Outdoor temperature C D er Dn a Heating Indoor temperature C DB j s ew cw oe om o ow o o or 1734 544 mee 1734 5
18. 15 43 Cooling 15 43 GMD Heating 15 24 Heating 15 24 Optional Low Ambient Kit included Cooling operation range without it 7 to 43 C Refrigerant piping 46 TLC I 2011 1 DCT 100 INV Si 1 DCT 100 INV Si ON Indoor Code 220070501330 220070501330 220 240V 1 Ph 50Hz 220 240V 1 Ph 50Hz Model supply DCT 100 INV So 1 DCT 100 INV So Code 220075500651 220075500920 220 240 1 Ph 50Hz 380V 3 Ph 50Hz Capacity Max Rated Min 12 60 10 5 4 20 12 34 10 55 4 12 Soch Input Max Rated Min 4 42 3 26 1 47 4 39 3 26 1 45 8 Current Max Rated Min A 00 20 23 14 92 6 74 6 72 4 79 2 10 EE Heating e 39 EE Van amp 8 78 rgsoermeM p Roary boete __ aans MTSUBSHIELECIRIG MITSUBISHI ELECTRIC mn E s wm vskop Motor Motor che 10uF 596 450V 10uF 596 450V CC 47 TLC I 2011 1 Capacitor UF 3 5uF 450V 10uF 59 450V Numeros 8 8 9 53 Inner grooved 9 53 Inner grooved copper tube copper tube LNumberofereuts 08 li Sound level sound pressure Hi Low ee Throttle tvpe expansion valve EM UN expansion valve
19. 858 195 990 233 1050 253 1110 272 1135 273 1159 276 2900 727 167 858 208 990 249 1050 270 1110 291 1135 292 1159 295 soo 7 27 178 858 222 990 265 1050 288 1110 3 00 1135 311 1159 314 3300 727 1 89 858 236 9 90 288 1050 306 1110 330 1135 331 1159 928 ssoo 727 201 858 251 990 30 1050 326 1110 351 1135 353 1159 3 56 azo 727 214 856 267 9 90 320 1050 347 1140 374 1135 375 1159 379 seoo 727 215 858 268 990 321 1050 348 1110 375 1135 377 1159 380 amoo 727 216 858 269 990 323 1050 350 1110 377 1135 378 1159 382 aoo 727 217 858 271 990 324 1050 351 1110 379 11 35 380 1159 384 Heating Indoor temperature C DB 2 lmlm sw om ew ow o or oss ws so 1017 302 200 7 6 1 546 nos 902 279 o re 120 120 o2 sos 292 262 n os go 2 vam so 120 309 nis 295 262 255 Outdoor air temp 60 TLC I 2011 1 DCT 100 INV Si matched with DCT 100 INV Si outdoor unit Cooling Indoor temperature C WB
20. I 2011 1 10 Troubleshooting 10 1 Indoor unit malfunction 10 1 1 Display board Compact 4 way cassette Infrared signal receiver Temporary button Operation lamp Timer indicator Alarm indicator PRE DEF indicator cooling and heating type or fan only indicator cooling only type Ceiling amp Floor Normal 4 way cassette Operation lamp OPERATION CD temporary button timer indicator frost indicator Timer indicator TIMER b O I DEF FAN 69 PRE DEF indicator cooling and heating type ALARN O or fan only indicator cooling only type Alarm indicator Temporary button operation lamp info window alarm indicator Infrared signal receiver infrared signal receiver Duct PRE DEF Indicator cooling and heating type Temporary button or fan only only type za Display Digital tube Operation lamp Timer indicator Alarm indicator Display panel 148 TLC I 2011 1 10 1 2 Troubleshooting x1 Normal cassette between in outdoor unit Quick flash malfunction Quick flash malfunction Quick flash malfunction Quick flash LED4 EEPROM malfunction Slow flash LED3 LED4 For ceiling amp floor amp compact 4 way cassette Malfunction Operation lamp Defrosting lamp Alarm lamp between in outdoor unit Quick flash 2 sensor LED1 malfunction Quick flash Water level alarm FED Quick flash LED3 LED4 For Duct type L
21. Ro 1 DCT 100 INV So 1 CCT 140 INV So 1 CFT 140 INV Ro 1 DCT 140 INV So 1 CCT 140 INV So CFT 140 INV Ro DCT 140 INV So CCT 170 INV So CFT 170 INV Ro DCT 170 INV So DHP 170 INV Ro Bee 3 Nomenclature DC 100 INV S i TLC I 2011 1 POWER SUPPLY gt STANDARD 1 gt MONOPHASE UNIT TYPE i gt INDOOR UNIT o gt OUTDOOR UNIT VERSION DRIVE TYPE INV gt INVERTER DRIVE NOMINAL CAPACITY 100 10 0KW BRAND T gt TOYOTOMI MODEL DC gt DUCTED CONCEALED CC gt CASSETE CONSEALED CF gt CEILING FLOOR MOUNTED TLC 1 2011 1 4 Features 4 1 Universal outdoor unit design Indoor unit with the same capacity can match with the same outdoor unit 4 2 High efficiency and energy saving Thanks to the DC inverter technology and optimized piping system the EER and COP of whole series can easily reach A class 4 3 Low noise and low starting current Thanks to the DC inverter technology the system can work with low noise and very small starting current 4 4 Intelligent refrigerant adjustment technology Throttle part is made up of capillary and electronic expansion valve EXV The outdoor unit can output the most accurate capacity in any condition 4 5 Working in cooling mode under 15 C Outdoor unit built in with low ambient kit it can control the outdoor unit s fan and cooling can be performed throughout the year for computer rooms banquet halls etc Wide o
22. well over again Use the multimeter to measure whether the voltage between the CN12 and Yes the CN13 on the power board is between 277 345 V Replace the IPM module Replace the power board 155 2011 1 4 malfunction For 36K amp 48K amp 60K E3 display Communication malfunction in outdoor IC and DSP Ye 5 Check whether the indicator lights LED1 LED2 on the main control board are flashing Replace PCB Yes Install the IC US chip of the PCB over again check whether the system can run normally Trouble is solved No Yes Check whether the output of the transformer to CN4 socket is well Replace PCB No Replace the transformer 156 TLC I 2011 1 5 E4 malfunction E4 display Judge 1 Outdoor condenser temp sensor T3 is malfunction Yes Check whether the wiring of the condenser temp sensor is broken off Connect the wiring well No Check whether the resistance of condenser temp sensor is wrong Yes refer to the Annex 1 Replace condenser temp sensor No Judge 2 Outdoor ambient temp sensor T4 is malfunction Yes Check whether the wiring of the outdoor ambient temperature sensor T4 is broken off Connect the wiring well Check whether the resistance of outdoor ambient temperature sensor Yes is win EE Replace outdoor ambient temperature sensor 14 Replace PCB 157 TLC I 2011 1 6 E5 malfunction E5 display Voltage protection of compressor
23. 240V 1 Ph 50Hz 220 240V 1 Ph 50Hz Model supply DCT 70 INV So DCT 90 INV So Outdoor Code 220075301070 220075401041 EE sw 32 jor W 1 mee meren __ 1 Retry verter Rotary DC verter HachiShangha MITSUBISHI ELECTRIC Co Je 4 j 4 ip goe f e e Indoor external static pressure Tomes om ees Cooling Net Gross weight 30 34 41 46 45 TLC I 2011 1 input 141 5 92 307 194 x row pitch b mmm mm 25 4x22 25 4x22 Outdoor coil NX ss Tube outside diaandtype mm 9 3 rare 29 E merged lengthxheightxwidth 7588344 8876914444 5 L 4 Sound level Se pressure L T e _ ms sao en a saw ma hair tl Zeenen vs Max refrigerant pipe length Max difference in level Outdoor is up 12 15 is down e T 3 5 wiring Power wiring Outdoor 3x2 5 3x2 5 Signal wiring 3 core shield wire 3x0 5 3 core shield wire 3x0 5 Wired controller Indoor standard KJR 10B DP T KJR 10B DP T Operaiontemp Indoo temp Operaiontemp Indoo 1730 OS 1730 OS 1730 Cooling
24. 3 100 736 125 848 149 900 162 952 174 972 175 993 177 eoo 6223 736 127 848 152 900 165 952 177 972 178 9 93 140 aow 623 109 736 136 848 163 900 176 952 190 972 191 993 199 zeoo 623 117 736 146 848 174 900 189 952 204 972 204 993 206 ____2500 623 125 736 156 848 186 900 202 952 218 972 219 993 221 623 134 736 166 848 199 900 216 952 233 972 234 9 93 236 90 622 143 736 178 848 213 900 231 952 249 972 250 993 252 0 623 152 736 190 848 227 900 246 952 265 972 266 999 269 623 736 202 848 242 900 262 952 283 972 284 993 2 86 o 623 172 736 215 848 257 900 279 952 301 972 302 993 a ao 623 183 736 228 848 274 900 297 952 320 972 993 324 seoo 623 184 736 229 848 275 900 298 952 321 972 322 99 325 ao 623 185 736 231 848 276 900 299 952 323 972 324 993 327 430 623 186 736 232 848 277 900 301 952 324 972 325 993 328 Heating Indoor temperature C DB 1 5 4 m ela lite a zu ME x EC am v ew eer 227 e
25. 45 1801 771 222 az sao ee 5 vov 452 o sw 2022 3 s42 546 49 ear C ss 2022 ser 2022 an 2022 sz som 500 476 vo Outdoor air temp 64 TLC I 2011 1 8 Electric Characteristics mdoorUnit Power Supply Indoorfanmotor Hz Voltage Min kW Remark MFA Max Fuse Amps A KW Fan Motor Rated Output KW FLA Full Load Amps A IFM Indoor Fan Motor 9 Sound Levels Concealed Duct Type Discharge Duct Suction 1 4m Microphone Noise level dB A DCT 35 INV Si DCT 50 INV Si 65 TLC 1 2011 1 11 Accessories m Soundproof 7 insulation sheath Tubing amp Fittings En Drainpipe Fittings for cooling amp heating k Wired controller amp Its Frame Wired controller H Owner 5 manual Others Installation manual 73 122 1 Dimensions 2 Service Space TLC I 2011 1 Part 3 Outdoor Units 9 Diagram E 4 Wiring el ie CT E 5 Field Wiring 6 Electric Characteristics 7 SOUT Levels EE PI Operation Troubleshooting 2011 1 1 Dimensions
26. 7 990 320 1055 347 1140 374 1135 375 1159 379 seoo 727 215 858 268 990 321 1055 348 1110 375 1135 377 1159 380 moo 727 216 858 269 990 323 1055 350 1110 377 1135 378 1159 382 aoo 727 217 858 271 990 324 1055 351 1140 379 11 35 380 1159 384 Heating Indoor temperature C DB e ew ww ow om o ow o o 07 m 277 orn ze em ew 276 ess 2e ew 6 mz zs BN o 276 250 Ls 7s nr zer nz ws 20 267 24 wr 277 vos 258 209 Outdoor air temp 61 TLC I 2011 1 DCT 140 INV Si matched with DCT 140 INV Si 1 outdoor unit Cooling Indoor temperature C WB um 24 00 e KW w KW kW kW kW KW KW KW kW KW KW lw 4 46 5 10 Heating Indoor temperature C DB lmlm a e ew o ew L e Der 7 1323 1323 as ase iam 362 7 s 399 1500 lt
27. 80 415V 3N 50Hz Check whether the connecting line Check whether the power between main board and the IPM Connect it tightly supply line is connected Connect it correctly and module is connected tightly check ok or not correctly and tightly tightly check ok or not Yes No Check whether the lines in Connect it tightly Check whether the connecting line of the compressor is E part box are connected tightly check ok or not Connect it tightly check ok or not connected tightly Yes Check whether the three phase bridge Replace the three phase is normal bridge Replace the IPM module check whether the system can work normally Yes Yes Trouble is solved Check whether the 3300uF 400V Replace this electrolytic No electrolytic capacitor is normal capacitor Replace the main board check whether the Yes system can work normally Trouble is solved Replace the compressor check whether Yes Troubledssglved the system can work normally 165
28. CO ng it well E part box are connected tightly line of the compressor is Connect it well connected correctly or tightly check ok or not Check whether the single phase bridge is normal Use the multimeter to measure the resistance between each two terminals check Replace the IPM module check whether there is the condition that value of whether the system can work resistance Is 0 normally No Trouble is solved No Replace the main board check whether the system can work normally Yes Check whether the connecting line of every reactor is normal If the line is broken the resistance of the two ports 1 Trouble is solved Replace the compressor check whether the system can work normally ss Trouble is solved Check whether the fuse on the power board is normal Yes Replace the power board 164 No TLC I 2011 1 Regulate it to correct then check whether the system can work normally Connect it correctly and tightly check ok or not Connect it tightly check ok or not Replace the single phase bridge Replace the connecting line Replace with the same model fuse TLC I 2011 1 14 P6 malfunction For three phases units P6 display Module protection Regulate it to correct then check whether the system can work normally Check whether the voltage range of P N on Check whether the input power supply IPM module is normal DC 350 650V is correct 3
29. CT 70 5 220 240V 1ph 50Hz CCT 90 INV S 220 240V 1ph 50Hz CCT 100 INV Si 220 240V 1ph 50Hz CCT 140 INV Si 220 240V 1ph 50Hz CCT 170 INV S 220 240V 1ph 50Hz 1 2 Outdoor Units Dimension Net Gross weight CCT 301 INVo CFT 35 INV Ro 761 593 279 39 5 42 5 220 240V 1ph 50Hz DCT 35 INV So CCT 501 INVo CCT 50 INV So CFT 50 INV Ro DCT 50 INV So CCT 70 INV So CFT 70 INV Ro 895x862x313 73 76 220 240 1 50 2 DCT 70 INV So 842 695 324 220 240V 1ph 50Hz CCT 100 INV So 1 CFT 100 INV Ro 1 940x1245x360 106 114 220 240V 1ph 50Hz DCT 100 INV So 1 CCT 90 INV So CFT 90 INV Ro 990 966 354 92 100 220 240V 1ph 50Hz DCT 90 INV So CCT 100 INV So CFT 100 INV Ro 990 966 354 87 95 380V 3ph 50Hz DCT 100 INV So CCT 140 INV So 1 CFT 140 INV Ro 1 940x 1245x360 106 114 220 240V 1ph 50Hz DCT 140 INV So 1 TLC I 2011 1 CCT 140 INV So CFT 140 INV Ro 940 1245x360 99 107 380V 3ph 50Hz DCT 140 INV So CCT 170 INV So CFT 170 INV Ro 940 1245x360 115 121 380V 3ph 50Hz DCT 170 INV So 170 INV Ro 940 1245x360 124 130 380 415V 3 Ph 50Hz TLC I 2011 1 2 External Appearance 2 1 Indoor units TLC 1 2011 1 2 2 Outdoor unit CCT 501 INVo CCT 50 5 CCT 301 INVo CFT 35 INV Ro DCT 35 INV So CFT 50 INV Ro DCT 50 INV So CCT 70 INV So CFT 70 INV Ro DCT 70 INV So CCT 90 INV So CFT 90 INV Ro DCT 90 INV So CCT 100 INV So CFT 100 INV Ro DCT 100 INV So CCT 100 INV So 1 100 INV
30. ED1 LED2 LED3 LED4 Ed Malfunction amp protection define GEERATEN TIMER SS ALARM Digital Tube In Outdoor unit COMM Checking channel is abnormal Room TEMP sensor checking 4 Pipe TEMP Sensor checking channel is abnormal T2 5 Pipe TEMP Sensor checking wa is abnormal T2B 6 EPPROM malfunction 7 Water level alarm malfunction ES Outdoor malfunction Be closed by the remote control CH ERE at5HZ OFlashing at 1HZ 149 2011 1 1 Operation lamp flashes Operation lamp flashes at 5Hz Judge 1 Indoor temp sensor is abnormal No Check whether the resistance of the evaporator temp sensor 1 correct according to Annex 1 Replace evaporator temp sensor Yes Judge 2 Room temp sensor is abnormal No Check whether the resistance of the room temp Replace room temp sensor sensor is correct according to Annex 1 Yes Replace indoor PCB 150 TLC I 2011 1 2 Timer lamp flashes Timer lamp flashes at 5Hz Judge Indoor outdoor unit communication is abnormal Refer to the outdoor unit LED display E2 malfunction in the following part 3 Alarm lamp slow flash Indoor alarm lamps flash at 1Hz Condenser temp sensor or outdoor unit is malfunction Judge 1 Condenser temp sensor is abnormal Check whether the resistance of the condenser temp sensor 5 No correct according to Annex 1 Replace condenser temp sensor Ye
31. NV Ro 1 50 220 240 198 254 30 40 13 6 0 1 2 100 5 1 ol 140 1 50 220 240 198 254 30 40 13 6 0 1 2 140 5 1 s Jel 100 INV Ro 50 380 342 440 20 40 9 3 0 2 1 4 100 5 0 je e we 140 INV Ro 50 380 342 440 20 40 9 3 0 1X2 0 8X2 DCT 140 INV So 4 e 170 INV Ro 440 0 1X2 0 8X2 DCT 170 INV So 52 Remark TOCA Total Over current Amps A MFA Max Fuse Amps A RLA Rated Locked Amps A OFM Outdoor Fan Motor FLA Full Load Amps A KW Rated Motor Output KW 134 TLC 1 2011 1 7 Sound Levels Outdoor unit Microphone Noise level dB A Model CCT 301 INVo CFT 35 INV Ro 48 44 DCT 35 INV So CCT 501 INVo CCT 50 INV So CFT 50 INV Ro 51 46 DCT 50 INV So CCT 70 INV So CFT 70 INV Ro 58 55 DCT 70 INV So CCT 90 INV So DCT 90 INV So CCT 100 INV So 1 CFT 100 INV Ro 1 57 52 100 INV So 1 140 INV So 1 140 INV Ro 1 59 54 DCT 140 INV So 1 CCT 100 INV So DCT 100 INV So CCT 140 INV So CFT 140 INV Ro 59 54 DCT 140 INV So CCT 170 INV So CFT 170 INV Ro 59 54 DCT 170 INV So DHP 170 INV Ro 59 54 135 TLC I 2011 1 9 Operation Limits Heating Ambient temp Ambient temp C Indoor temp cooling Indoor temp C C 147 TLC
32. e Annex 2 Replace the compressor discharge temp sensor Yes Replace outdoor main board 162 TLC I 2011 1 12 P5 malfunction When condenser high temp is more than 65 C the unit will stop and unit runs again when outdoor pipe temp less than 52 C P5 display High temperature protection of condenser Check whether the condenser temperature is more than 65 C Yes No Check whether the resistance of condenser temp No REAT sensor is correct refer to the Annex 1 eplace tne temperature sensor Yes Replace outdoor main board Stop the unit Judge1 The outdoor temp is too high Yes No Yes Clean the heat exchanger Judge 2 Check whether the heat exchanger is dirty No Let the refrigerant out then use the high pressure Yes nitrogen or refrigerant to blow pipe vacuumize and i UR charge the refrigerant again Judge 3 The refrigerant pipe is blocked No Replace outdoor main board 163 13 malfunction For single phase units P6 display Module protection Check whether the voltage range of P N on IPM module is normal DC277 356V for 18K 24K 30KBtu h DC277 410V for 36K 48KBtu h Check whether the input power supply IS correct 220 240V 1N 50Hz Check whether the connecting line En Check whether the power between main board and the IPM Connect it tightly supply line is connected module is connected tightly check ok or not correctly and tightly Check whether the lines in ee
33. e protection L PRO PTC1 PTC2 g gt 2 5 9 2 131 TLC I 2011 1 5 Field Wiring INDOOR UNIT 3 core shidded cable to CCM 220 240V 50Hz 3x0 5 OUTDOOR UNIT Air Conditioner Link circuit For R410a Cooling amp Heating For 12000Btu h with 1Phase outdoor unit INDOOR UNIT Supp 1 20 24 cabl a 3x 1 0 4 shielded cab la 3x0 5 mm Supp ly 1 Phasa 20 20 score 3 5mm OUTDOOR UNIT gt For 18000 24000Btu h with 1 phase outdoor unit 132 TLC 1 2011 1 F a e INDOOR UNIT Powar Supe shi dead te OOM 1 220 240 9 cable 3x1 0 shielded cab Power Suppl 3 380 41 51 cable 5x2 5 m For 36000 60000Btu h with 3 phase outdoor unit 133 TLC I 2011 1 6 Electric Characteristics Hz Votage win Max RA a 35 220 240 198 254 Ir 024 DCT 35 INV So CCT 501 INVo CCT 50 INV So CFT 50 INV Ro 220 240 0 053 DCT 50 INV So alien CFT 70 INV Ro 50 220 240 198 254 20 30 10 4 0 053 0 67 70 5 e eoe sup wi CFT 90 INV Ro 50 220 240 198 254 20 40 13 5 0 2 1 4 90 5 Islas s w s CFT 100 I
34. ng between the indoor and outdoor units is wrong polarity Judge 4 Check whether the signal wiring between the indoor and outdoor units is broken No Indoor or outdoor main board is broken Replace the main board until the malfunction disappears 154 No Yes Yes TLC I 2011 1 Turn on the indoor unit power Adopt the shield cable let shield cable earthed Connect the signal wiring correctly Replace the broken wiring 2011 1 3 malfunction For 18K 24K amp 30K E3 display Communication malfunction in outdoor IC and DSP Yes Check whether the indicator lights LED1 the main board is flashing Replace the outdoor main board No Check whether the connecting wiring between the IPM module and the CN4 Yes Insert the connecting wiring well over on the main board is broken off again In Disconnect the connecting wiring between the IPM module and the CN4 on the main board use the multimeter to measure the voltage between the IPM module port s and 4 pillar check whether it is 5V the third pillar on the main board Replace outdoor main board labels 5V Check whether the connecting wiring between the IPM module positive Yes pole and the CN12 on the power board is broken off Insert the connecting wiring well over again Check whether the connecting wiring between the IPM module negative Yes pole and the CN13 on the power board is broken off Insert the connecting wiring
35. nitrogen or refrigerant to blow pipe vacuumize and Judge 6 Check whether the refrigerant pipe is blocked charge the refrigerant again No Replace outdoor main board 159 2011 1 9 P2 malfunction P2 display Low pressure protection Judge 1 The wiring between the low pressure switch and main control No board is connected well or correctly Goneerituell Yes Judge 2 Whether the low pressure switch is broken Method Short connect the low pressure switch socket check Yes whether the system run normally Replace low pressure switch No Check whether the refrigerant system is ok Yes Judge 3 Check whether the outdoor ambient temperature is too low Stop the unit Judge 4 The refrigerant of the system is leakage Leak hunting Charge nitrogen or refrigerant to the system if the leakage is serious there will be distinct gas leakage sound if the leakage is slight use the suds mixture of water Yes and abluent is also ok if it can make bubble or electronic leak detector Method Connect the pressure gauge to the gauge joint of the system check whether the pressure is lower than 0 14MPa No Yes Let the refrigerant out then use the high pressure nitrogen or refrigerant to blow pipe vacuumize and Judge 5 The refrigerant pipe is blocked charge the refrigerant again No Replace outdoor main board 160 TLC I 2011 1 10 P3 malfunction P3 displa
36. on _ Es Power voltage protection FAM H FAN PORE EY BLACK RED m High pressure protection Low pressure protection Current probectian P4 Compressor discharge TO COMMUNICATION BUS ih rt PS Condensar high OUTDOOR UNIT POWER PLEASE USE SHIELDED WIRE Ps temperature probection Inverter module protection 130 TLC 1 2011 1 DHP 170 INV Ro WIRING DIAGRAM OUTDOOR UNIT 202075790151 YTRANS1 X3 X33 YELLOW CN20 CN22 2 TO COMMUNICATION BUS OUTDOOR UNIT POWER PLEASE USE SHIELDED WIRE CODE COMP CAP1 CAP5 CT1 IC1 PART NAME COMPRESSOR CAPACITANCE CURRENT DETECTOR ELECTRIC EXPANSIVE VALVE 2 1 2 CRANKCASE HEATING HIGH PRESSURE SWITCH LOW PRESSURE SWITCH AC CONTACTOR PTC ELEMENT REACTOR REC1 REC2 RECTIFIER RES1 RES2 _ TEMPERATURE SENSOR OUTDOOR TEMPERATURE SENSOR COMP DISCHARGE VIPERA N SOR XS1 XS2 CONNECTOR XP1 XP2 CONNECTOR 4 WAY TERMINAL SMALL 3 WAY TERMINAL Malfunction Code for Outdoor unit Display Malfunction or Protection EEPROM malfunction between indoor outdoor units of outdoor unit controller sensor malfunction es Low pressure protection P3 Current protection Compressor discharge temperature protection Condenser high temperature protection P6 Inverter modul
37. owwete DO merer mei SANYOGhenymg KEE pa me ser mer _ COM 2 mmm mn BEE Coillengthx heightxwidth 735x252x26 74 735 252 40 11 oWmedam s Somsen mm sonoxess Ee 43 TLC I 2011 1 input 67 48 129 86 Ee x row pitch b 25 4 22 22 19 05 Outdoor Fin type code a Hydrophilic aluminum Hydrophilic aluminum Tube outside diaandtype Ee NE re te oM MS o d Coillengthxheight width Coll lengthxheightxwidth 654 558 8 44 8 44 778x660x38 1 778x660x38 1 7 NM Sound level Se pressure L TT mamam men ee EE e l e g 15 down SE wiring Power wiring Outdoor 3x2 5 Signal wiring 3 core shield wire 3x0 5 Wired controller Indoor standard es KJR 10B DP T KJR 10B DP T Operation temp Indoor temp Operation temp Indoor o 40780 0 4730 4730 o 1790 Cooling 0 43 Cooling 15 43 EEN ET Heating 15 24 Heating 15 24 Optional Low Ambient Kit included Cooling operation range without it 7 to 43 Refrigerant piping 44 TLC I 2011 1 DCT 70 INV Si DCT 90 INV Si Ce Indoor Code 0 220070301180 220070401060 220
38. p 5 TLC I 2011 1 DCT 70 INV Si Cooling Indoor temperature C WB 14 00 16 00 18 00 19 00 20 00 22 00 24 00 ee kw KW RW kW kW RW RW 077 525 056 663 115 124 744 134 760 134 776 136 eo 079 575 099 663 119 129 744 139 760 139 776 140 Heating Indoor temperature C DB _ a EUCEE ee AE CAR RE o or em em 195 em 19 o ve ses 7 e eee 205 WEB rs re 1s 202 750 oe re 1 72 es e om te Outdoor air temp 58 TLC I 2011 1 DCT 90 INV Si Cooling Indoor temperature C WB 24 00 p P Pj Tc P Tc P oo 625 oss 736 116 139 900 151 952 162 922 163 993 re zoo 6223 095 736 148 848 141 900 153 952 165 972 166 9 93 168 400 623 097 736 120 848 144 900 156 952 168 972 993 171 eoo 623 098 736 122 848 147 900 159 952 171 972 172 998 174 aoo 62
39. peration range covers outdoor temperatures as low as 15 C for cooling 4 6 Indoor amp outdoor unit s power supply is separate 4 7 All indoor units have network control function 4 8 All indoor units have Auto restart function 2011 1 Part 2 Indoor Units 1 DUCE TLC I 2011 1 Duct Type BI BDDC Te e Dimensions Unit mm e DIGgI lr E Air Velocity and Temperature Distributions Ee c T ON Q FP C BC EEN ACCeESSONES EE 41 1 Features New structure design e Built in drain pump e Two air intake ways from below or rear standard Air intake from below Air intake from back e Wired controller is standard e Four speeds indoor unit e Fresh air inlet hole is reserved e Standard aluminum alloy filter which is more convenient to replace 42 TLC I 2011 1 2011 1 2 Specifications ER ES m emmer zeg A le C o e Im L m pesqczoza RemyD
40. s Judge 2 Outdoor unit is abnormal Refer to the outdoor unit LED display E4 P1 P2 malfunction in the following part 151 TLC I 2011 1 4 Alarm lamp quick flash Alarm lamp flashes at 5Hz Judge Water level switch is abnormal No Check whether the water pump can work normally Replace water pump Yes Yes Select the cooling mode to make water pump work for a few minutes then check Trouble is solved whether the system can run normally No Yes Check whether the water drain pipe is blocked fluently No Replace indoor PCB 5 Defrost lamp flashes Defrost lamp flashes Solve to make the water can flow Judge Mode conflicts malfunction Turn the indoor unit to heating mode or turn off the unit 152 TLC I 2011 1 11 2 Outdoor unit malfunction EEPROM malfunction 2 Communication malfunction between indoor IC and outdoor Po Top temperature protection of compressor I Gw 00000000 0 1 EO malfunction EO display EEPROM malfunction Judge Check whether the EEPROM 1 inserted well Insert the EEPROM well Yes Replace outdoor main board 153 2 E2 malfunction E2 display Communication malfunction between indoor IC and outdoor IC No Judge 1 Check whether the indoor unit power is on Yes Judge 2 Check whether the signal wiring is shield cable or whether the shield cable is earthed Yes Judge 3 Check whether the signal wiri
41. y Current protection of compressor Judge 1 Check whether the input current of the power supply wire is more than 20A For 36K amp 48K with 1 phase it is 30A Yes Check whether the refrigerant system is ok Yes Judge 2 Check whether the outdoor ambient temperature is too high Stop the unit Yes Judge 3 Check whether the outdoor unit is bad ventilation Make the outdoor unit ventilate well No Yes Judge 4 Check whether the heat exchanger is dirty Clean the heat exchanger No Yes Let the refrigerant out then use the high pressure Judge 5 The refrigerant pipe is blocked nitrogen or refrigerant to blow pipe vacuumize and charge the refrigerant again p No Replace outdoor main board 161 2011 1 11 P4 malfunction When compressor discharge temperature is higher than 115 C the unit will stop and unit runs again when compressor discharge temperature is lower than 90 C P4 display Discharge temperature protection of compressor Yes Check whether the compressor discharge temp is more than 115 C Check whether the wiring connection is right between compressor discharge temp sensor and Correct the wiring connection PCB according to wiring diagrams Check whether the refrigerant is leak Yes Judge The discharge temp sensor is broken Stop leaking and add refrigerant Method Check whether the resistance of compressor discharge temp sensor is right refer to th
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