Service Manual
Contents
1. Yes No Yes lt No eplace the IPM module check whether the system can work normally Check whether the bridge rectifiers are normal Use the multimeter to measure the resistance between each two terminals check whether there is the condition that value of No resistance is 0 Yes No eplace the main board Yes check whether the system Yes Replace the bridge rectifiers can work normally Check whether the connecting line of every reactor is normal If the line is broken the resistance of the two ports No is for 18K 24K 30KBtu h Check whether the PFC module broken for 36K 48KBtu h No eplace the compressor check whether the system Yes gt y can work normally Replace the connecting line or reactor or replace the PFC module y Yes Trouble is solved 2 128 Electrical Control System Troubleshooting 2 4 4 15 P6 malfunction For three phases units At first test the resistance between every two ports of U V W of IPM and P N If any result of them is 0 close to 0 the IPM is defective Otherwise please follow the procedure below P6 display module protection Check whether the voltage range of P N on IPM module is No normal DC 350 650V Check whether the input power supply is correct 380 415V 50Hz Regulate it to correct then2. 62 52 Outdoor Units 1 Dimensions A I N HE i il TN 7 A A 0 900 is 9 8 0 9 8 o EN 50HINVo 70HINVo CCT 100HINVo 990 Outdoor Units 624 366 396 340 354 Dimensions 966 53 2 Service Space Wall or obstacle 222201 Maintain channel Air inlet More than 30cm than 30cm _ Airinlet EN Air outlet a Outdoor Units d More than 2 More than 200cm Service Space More than 60cm LLLA 55 Piping Diagrams 3 Piping Diagrams 50HINVo 70HINVo INDOOR HEAT EXCHANGE EVAPORATOR sensor T2 Evaporator temp sensor A T1 Room temp CCT 100HINVo INDOOR
3. b service Manual MODEL CCT 50HINVi o CCT 70HINVi o CCT 100HINVi o Contents Part 222 2 cese v een ete v cac 1 Part 2 Indoor Units Part 3 Outdoor Units Part 5 Electrical Control System X The specifications designs and information in this book are subject to change without notice for product improvement Contents General Information Part 1 General Information 1 6 2 2 External Appearance nisan Resa EUER CR ER 3 2 3 2 2 0utdoor VAS Pri Ew u oetan 3 4 FEIAU General Information 1 Model Lists 1 Model Lists 1 1 Indoor Units R410A capacity multiplied by 1000Btu h C super sim cassete Ue Cemmdwam 9 Ceiling floor Cooling and heating e New Four way cassette Gooliba d netin compact 9 9 1 2 Outdoor Units Universal Outdoor unit Model Compressor type Compressor Brand Matched indoor units 50HINVo Rotary DCT CFT CCT 7OHINVo Rotary GMC
4. 5 Frequency limit symbol Electrical Control Function The display value is between 30 120 degree If the temp is lower than 30 degree the digital display tube will show 307 11 the temp is higher than 99 degree the digital display tube will IGBT radiator temp show single digit and tens digit For example the digital display tube show 0 5 it means IGBT radiator temp is 105 degree the digital display tube show 1 6 it means the IGBT radiator temp is 116 degree Indoor unit number The indoor unit can communicate with outdoor unit well Condenser pipe temp of 1 indoor unit If the temp is lower than O degree the digital display tube will Condenser pipe temp of 2 indoor unit show the temp is higher than 70 degree the digital display tube will show 70 If the capacity demand is O the 54 digital display tube will show O If the indoor unit is not Condenser pipe temp of 3 indoor unit connected the digital display tube will show heating T2 cooling 2 1 Indoor unit capacity demand code Actual HP 10 es eles If capacity demand code is higher than 99 the digital display 2 Indoor unit capacity demand code tube will show single digit and tens digit For example the digital display tube show 5 0 it means the capacity demand is 15 the digital display tube show 60 it means the capacity demand is 6 0 If the indoor unit is not connected
5. High temperature protection of evaporator Whether compressor operates Yes Y Check whether the heat exchanger is dirty the air outlet is blocked and the indoor fan is running normal No Y No Whether the Clean the heat exchanger and the air outlet Check whether the indoor fan is running normal No y Check refrigerant system such as clogging of capillary etc connection is good Yes Check the esistance value of the sensor via Appendix 1 1 it normal Yes hether the indoor PCB is normal No Reconnect and retest No Replace the indoor PCB No Replace the temperature sensor Electrical Control System Troubleshooting Appendix 1 Temperature Sensor Resistance Value Table kom kom c Kom ET N N C 26 ossoa 6 1967 16 05292 aso 27 17 oss 6160 eres 6 17647 toe 040 833586 6 10 0480 eze so vo emn m 72 1568 12 04460 eze 692 3 ome 34 ese 74 042804 7 5 4575 3 4 75 us
6. gt Increase the capacity of anti transformers Or the signal wire interference is too long No Y Check whether the signal wire is shield cable or whether the No cable earthing shield cable is earthing Yes Y Check whether the wire is correct polarity P to P Q to Q No E to E Yes Y Check whether the signal wire is broken No y Check whether the signal wires insert on PCB well Correct the connection y Yes Replace the signal wire No Pull out and insert back v Yes Replace indoor PCB is the error distinguished No Y Replace the outdoor PCB 116 Electrical Control System 2 4 4 3 E3 malfunction E3 display Communication malfunction between board and outdoor main board Is there at least one LED in the IPM board light No Y Check the signal wire between the IPM module and the main Yes board is it connected good No v No y Replace IPM board and then check whether the system can run normally hi Replace outdoor main board and then check Yes Yes normally Reconnect and retry Is error still display whether the system can run 4 Y Replace the electric control
7. DER EE m 14 Electric Characteristics ss 15 SJ EDU OL T H 16 AGGESSORIES M 17 The Specification of Power 18 A llen 19 Features 1 Features 1 1 Overview gt Compact design super slim body size less space requiring in installation Eachlouver can be separately controlled more comfort air blowing is possible gt Auto lifting panel design more convenient to clean and maintain the filter optional LL M 2 4 2 840mm Y Jul 1 u o Ael F r 4 i i m E a el a Old Cassette New slim cassette Volume change 18K 24K 840 230 840 18K 24K 840 205 840 13 3 Dimension 30K 840 300 840 30K 840 205 840 47 7904 36K 48K 840 300 840 36K 48K 840 245 840 22 4 1 2 Fresh air intake function gt Fresh air fulfills air quality more healthy and comfortable gt Ventilation motor is optional to increase the effect of fresh air Indoor Units Features 7 New air intake 1 3 Optional ionizer generator gt lonizer generator is optional to get refreshing air to your room lonizer generator Ventilation motor connector connector lonizer can be switched on or off by remote controller When pressing the Clean Air button on
8. one of following items is satisfied defrosting will stop and the machine will turn to normal heating mode D The defrosting time achieves 10min 2 2215 3 7 C for 60seconds 1 3 3 5 High evaporator coil temp T2 protection 2 gt 60 C the compressor will stop and restart when T2 54 1 3 4 Auto mode This mode can be chosen with remote controller and the setting temperature can be changed between 17 30 In auto mode the machine will choose cooling heating or fan only mode according to AT AT T1 Ts Electrical Control System 99 Electrical Control Function 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 1 3 5 Drying mode Drying mode works the same as cooling mode in low speed All protections are active and the same as that in cooling mode 1 3 6 Timer function 1 3 6 1 Timing range is 24 hours 1 3 6 2 Timer on The machine will turn on automatically when reaching the setting time 1 3 6 3 Timer off The machine will turn off automatically when reaching the setting time 1 3 6 4 Timer on off The machine will turn on automatically when reaching the setting on time and then turn off automatical
9. HEAT EXCHANGE EVAPORATOR T1 Room temp sensor T2 Evaporator temp sensor 56 OUTDOOR Electronic LIQUID SIDE CAPILIARY TUBE expansion valve 2 WAY VALVE T3 Condenser temp sensor HEAT temp sensor CONDENSER 4 7 ik GAS SIDE 4 4 WAY VALVE N ii 4 lt 2 3 WAY VALVE High pressure switch gt 5 Discharge Low pressure temp sensor switch 4 COOLING Compressor 4 HEATING OUTDOOR Electronic N NM SL 2 WAY VALVE T3 Condenser temp sensor HEAT temp sensor CONDENSER gt GAS SIDE 4 PE v N WAY VALVE d 4 2 3 WAY VALVE Accumulator High pressure switch Compressor D T5 Di Discharge temp sensor cw M Oil separator ires 4 COOLING pressure switch Oil return Capillary 4 X HEATING Outdoor Units Wiring Diagrams 4 Wiring Diagrams CCT 50HINVo CCT 70HINVo 202075390587 LOW PRESSURE PROTECT HIGH PRESSURE PROTECT OUTDOOR AMBIENT _ I4 TEMPERATURE SENSOR mQ CompTop LOW HIGH P VEMPERATURE SENSOR ons IPM BOARD DISCHARGE SENSOR ON 4 vz MAIN BOARD 5 ELECTRONIC EXPANS IVE ALVE HEAT VALV REACTOR U R To ILLT N L2 EC
10. v box Electrical Control System rouble is solved Troubleshooting 117 Troubleshooting 2 4 4 4 E4 malfunction E4 display Judge 1 Outdoor condenser temp sensor T3 is malfunction Check whether the wiring of the condenser temp sensor T3 is broken off Yes Connect the wiring well No Y Check whether the resistance of condenser temp sensorT3 is wrong refer to the Appendix 1 Yes gt Replace condenser temp sensor T3 No v Judge 2 Outdoor ambient temp sensor T4 is malfunction Check whether the wiring of the outdoor ambient temperature sensor T4 is broken off gt Connect the wiring well Check whether the resistance of outdoor ambient temperature Yes sensor T4 is wrong refer to the Replace outdoor ambient temperature sensor T4 Appendix 1 No v Replace outdoor main PCB 118 Electrical Control System Troubleshooting 2 4 4 5 E5 malfunction For single phase units 5 display protection Check the of outdoor unit power supply whether the voltage between L 1 and N is about 220 240VAC T No v Check the power supply Ec M d Replace power board then check whether
11. P1 display High pressure protection Judge 1 Whether the wiring between the high pressure switch and main control No Connect it well board is connected well or correctly Yes Judge 2 Whether the high pressure protector is broken Method Short connect the high pressure protector socket check whether the TOUT Replace high pressure protector system can run normally No Y Check whether the refrigerant system is ok Judge 3 Check whether the outdoor ambient temperature is higher than i ipn Stop the unit 50 Y Judge 4 Check whether the outdoor unit is bad Yes Make the outdoor unit ventilate well ventilation v Judge 5 Check whether the heat exchanger is dirty Judge 6 Check whether the refrigerant pipe is blocked Replace outdoor main board Electrical Control System Yes Clean the heat exchanger Yes Let the refrigerant out then use the high pressure nitrogen or refrigerant to blow pipe vacuumize and charge the refrigerant again Troubleshooting 123 Troubleshooting 2 4 4 10 P2 malfunction For 36k models P2 display Low pressure protection Judge 1 Whether the wiring between the low pressure
12. COMPRESSOR Pps RRR OPTIONAL NN PLEASE USE FOR NORTH AMERICAN CORE SHIELDED WIRE UNIT ONLY Outdoor Units Wiring Diagrams 100HINVo 58 202075590687 5 Q lt A PTC2 BLACK WIRING DIAGRAM OUTDOOR UNIT PART NAME COMP COMPRESSOR CT1 AC CURRENT DETECTOR 3 PHASE RECTIFIER 1 PHASE RECTIFIER ELECTRIC EXPANSIVE VALVE FM1 OUTDOOR DC FAN FAN1 OUTDOOR AC FAN HEAT Y CRANKCASE HEATING HEAT D H PRO HIGH PRESSURE SWITCH REACTOR LOW PRESSURE SWITCH AC CONTACTOR PTC ELEMENT 4 WAY VALVE CONDENSER TEMPERATURE SENSOR OUTDOOR AMBIENT TEMPERATURE SENSOR Q POWER amp FILTER BOARD AWAY IN BLACK Applicable to the units 9e ave TO INDOOR COMM BUS adopting AC motor only POWER SUPPLY NOTE PLEASE USE M Outdoor Units Electric Characteristics 5 Electric Characteristics Outdoor Unit Hz Voltage Min Max CCT50HINVo 50 220 240 198V 254V CCT70HINVo 50 220 240 198V 254V CCT400HINVo 380 415V 342V 440 60 Outdoor Units Operation Limits 6 Operation Limits Cooling operation Heating operation Outdoor temperature 15 50 15 24 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 a
13. OE Lock button D 1 mode selection button It is used to select mode push the button one time then the operation modes will change In turn as follows Remark no heating mode if wire controller is set as the cool only 2 Timer on button Push the button to set TIMER ON each time you push the button the time moves forward by o 5 hours When the set time is over 10 hours each time you push the button the time moves forward by 1 hour If want to cancel the TIMER ON then adjust the time of TIMER ON as 0 0 3 Timer off button Push the button to set TIMER OFF each time you push the button the time moves forward by o 5 hours When the set time is over 10 hours each time you push the button the time moves forward by 1 hour If want to cancel the TIMER OFF then adjust the time of TIMER OFF as 0 0 4 CLOCK button Normally display the clock set currently display 12 00 for the first electrifying or resetting When push the button for 4 seconds the hour part on the clock display flashes every 0 5 seconds then push button and to adjust hour push the button CLOCK again the minute part flashes every 0 5 seconds then push and button to adjust minute When set clock or alter clock setting must push the confirm button to complete the setting Electrical Control System 137 Controller Name and function of LCD on the wire controller 138 2 FAN speed D MODE display fee me ae noc A
14. 04164 ooo 3 eros 76 1 me serso 1298 87 a en 3 1258 ve oo 120 os ALO Ola olo gt N O N 1 1 1 1 1 1 A o N oo oo vo gt cojoj o o 2 o m 2 so 3459 90 10 02 u over 0888 319 920 sss o2 08092 1 92008 vas 3008 9779 13 92057 eon 29 0798 92525 168 2840 o ormo 15 9262 s 2789 9794 1 0296 sr 157 0298 259 18 2467 o 99 oz A NO O11 O17 C1 C1 O17 C1 C1 O1 INI OT gt Electrical Control System 131 Troubleshooting Appendix 2 Unit C K Discharge temp sensor table 1 A NO O N 8 16 430 5 57 37 11 79 104 3 296 15 406 7 54 89 11 38 105 3 203 NO O 13 363 3 50 28 10 61 107 3 025 12 343 6 48 1
15. The display value is between 13 129 degree If the temp is lower than 13 degree the digital display tube will show 13 If the temp is higher than 99 degree the digital display tube will Compressor discharge temp Tp show single digit and tens digit For example the digital display tube show 0 5 it means the compressor discharge temp is 105 degree the digital display tube show 1 6 it means the compressor discharge temp is 116 degree 10 AD value of current The display value is hex number 11 AD value of voltage 12 Indoor unit running mode code Off 0 Fan only 1 Cooling 2 Heating 3 13 Outdoor unit running mode code Off 0 Fan only 1 Cooling 2 Heating 3 Forced cooling 4 Actual data 4 If the value is higher than 99 the digital display tube will show 14 EXV open angle single digit and tens digit For example the digital display tube show 2 0 means the EXV open angle is 120 4 480 Frequency limit Bit caused by IGBT radiator BitG Frequency limit caused by PFC The display value is hex Frequency limit Bit5 number For example caused by T4 Frequency limit the digital display tube Bit4 caused T2 show 2A then Bit5 1 Fre al Bit3 2 4 means frequency limit E E 2 1 caused by T4 T3 and Bit2 current caused by Tp Frequency limit Bit1 caused by current Frequency limit caused by voltage 16 DC fan motor speed 14 102 Electrical Control System
16. the digital 3 3 Indoor unit capacity demand code display tube will show Electrical Control System 103 Troubleshooting 2 Troubleshooting 2 1 Display board 2 1 1 explanation on indoor display board Super slim cassette Temporary button Digital LED Infrared signal receiver Operation lamp indicator Alarm indicator PRE DEF indicator cooling and heating type or fan only indicator cooling only type 2 1 2 explanation on indoor display board A5 Duct PRE DEF indicator cooling and heating type or fan only indicator cooling only type Timer indicator Alarm indicator Operation lamp Infrared signal receiver Temporary button Display digital tube MANUAL OPERATION TIMER DEF FAN ALARM 2 1 3 Auto lifting panel of 4 way cassette Digital 88 Display t Check Button Running LED Timer LED Defrost LED Alarm LED 2 1 4 Display board of Ceiling floor indoor unit MANUAL OPERATION TIMER DEF FAN Infrared signal receiver 104 Electrical Control System 2 1 5 Icon explanation on indoor display board Compact cassette Infrared signal receiver Temporary button Troubleshooting Operation lamp indicator Alarm indicator PRE DEF indicator cooling and heating type or fan only indicator cooling only type 2 2 Indoor uni
17. 36HFN1 QRC8 E6 display PFC module protection l Check whether the connecting line between main board and the PFC module is connected tightly Connect it tightly check normal or not 4 Check whether the voltage range of P N on IPM Yes Replace the outdoor main board module is normal DC277 Yes 410V NO Check whether the inductance of PFC module is good If the inductance is No Replace the inductance good the resistance of the two ports is O Yes y Replace the PFC module lt Trouble is solved P Electrical Control System 121 Troubleshooting 2 4 4 8 PO malfunction PO display Temperature protection of compressor top v Whether compressor Whether the connection is No No Reconnect and retest operates good Yes Yes Whether refrigerant circulation volume is normal TU Replace the protector protector is normal resistance 0 No Y Charge refrigerant Yes Y Replace the outdoor main PCB Whether abnormality is the same after gas charging No v Check refrigerant system such as clogging of capillary etc 122 Electrical Control System 2 4 4 9 P1 malfunction For 36k models
18. of 1mm to shift the mode between Cooling only and Cooling amp Heating according to the feature of the machine 13 RESET inner located Press this button with a needle of 1mm to cancel the current setting and reset remote controller 134 Electrical Control System Controller 3 1 2 RG51C E Remote Controller Specifications Model RG51C E Reaching Distance 8m when using 3 0 voltage it can get 11m Environment Temperature Range 5 60 Introduction of Function Buttons Remote Controller SET TEMPERATURE AU TO FAN COOL HIGH DRY MED HEAT LOW ADJUST A Adut NC dq Adust a E mM 7 ONOFF MODE _ FAN SPEED g Mode setting 8 Fan speedse ting SWINGT TIMERON 9 TIMER SWING reseriock 10 qeraton 22200 C 2 0 rwnorr gt E AR RE D 43 Reset 1 Adjust Y Decrease the s amp t temp Keeping pressing will decrease the temp with 1C 0 58 2 Adjust Increase the set temp Keeping pressing will increase the temp with 1 C 0 55 3 MODE Once pressing running mode will be selected in the following sequence NOTE No heating mode for cool only type unit 4 VERT SWING Used to stop or start horizontal louver movement The louver will swing up and down automatically if push this button AIR DIRECTION Used to set the des
19. protector and main No Connect it well control board is connected well or correctly Yes Y Judge 2 Whether the low pressure protector is broken Method Short connect the low pressure protector socket check whether the TESE Replace low pressure protector system can run normally No Y Check whether the refrigerant system is ok Judge 3 Check whether the outdoor ambient Yes temperature is too low No Judge 4 The refrigerant of the system is leakage Method Connect the pressure gauge to the gauge joint of the system check whether the pressure is lower than 0 14MPa No v Judge 5 The refrigerant pipe is blocked No Replace outdoor main board 124 Stop the unit Yes Yes 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 and abluent is also ok if it can make bubble or electronic leak detector Let the refrigerant out then use the high pressure nitrogen or refrigerant to blow pipe vacuumize and charge the refrigerant again Electrical Control System Troubleshooting 2 4 4 11 P3 malfunction P3 display Current protection of compressor i Judge 1
20. sensor Electrical Control System 107 Troubleshooting 2 4 1 2 Outdoor unit malfunction Outdoor unit malfunction Whether the outdoor main board has error display No v Whether the outdoor unit is power on Yes Refer to corresponding solving steps Yes Check whether the communication wire between the indoor and outdoor unit is connected correctly No gt Yes y Replace outdoor main board Check if the errors happen again Yes Y No Check whether the power is on Connect the wiring well or replace the communication wire No Replace the indoor PCB 108 v Trouble is solved Electrical Control System Troubleshooting 2 4 1 3 Indoor EEPROM malfunction 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 PCB replace the PCB directly Otherwise No Insert the well check whether the EEPROM chip plugged in PCB well Yes Replace the indoor PCB 2 4 1 4 Full water malfunction If the water level switch is inserted well Yes If the water level switch 15 broken No Y If the water pump is normal No Insert the water level switch wel
21. the system can run normally hs Check I the voltage of IPM board P and N is normal DC277 356V for 18K 24K 30KBtu h DC277 410V for 36K 48KBtu h B Replace bridge rectifiers and then check whether the system can run normally Yes Replace IPM board and then check whether the system can run normally Yes No Y Replace outdoor main board rouble is solved Electrical Control System 119 Troubleshooting 2 4 4 6 E5 malfunction For three phases units 5 display Voltage protection Check whether the voltage range of P N on IPM module is normal DC277 356V for 18K No v Check the power supply 24KBtu h DC277 410V for 36KBtu h Yes Y Replace the power board then check whether the system can run normally No Y Check whether the voltage range of P N on IPM module is normal DC 350 650V No Yes Replace bridge rectifiers and then check whether the system can run normally Yes 4 Replace IPM board and then check whether the system can run normally Yes No Replace outdoor main board 15 solved 120 Electrical Control System Troubleshooting 2 4 4 7 E6 malfunction Only for MOU 36HFN1 QRC4 MOU
22. unit will stop working when the compressor top temp protector cut off and will restart after the compressor top temp protector restart 1 2 3 Temperature protection of compressor discharge When the compressor discharge temp is getting higher the running frequency will be limited as below rules 1 102 lt 5 lt 115 C decrease the frequency to the lower level every 2 minutes till to F1 f T5 gt 115 for 10 seconds the compressor will stop and restart till T5 90 C 1 2 4 Sensor protection at open circuit and breaking disconnection 1 2 5 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 1 2 6 Fan Speed is out of control for DC motor When Indoor Fan Speed keeps too low For A5 duct amp Ceiling amp floor 300RPM For Super slim cassette 200RPM for 50s the unit will stop and the LED will display the failure Electrical Control System 95 Electrical Control Function 1 3 Operation Modes and Functions 1 3 1 Fan mode 1 Outdoor fan and compressor stop 2 Temperature setting function is disabled and no setting temperature is displayed 3 2 3 Indoor fan can be set to high med low auto 4 The louver operates same as in cooling mode 5 5 Auto fan 4 5 0 High 2 4 0 2 Medium 3 0 7 2 0 Y L
23. 4 68 10 25 108 2 941 A N 10 307 7 44 17 9 569 110 2 781 4 A N 3889 73 8 643 2 559 2 489 2 422 gt NIN gt 9 5 10 1 _ e s es 9 49 L m sm s ws 9 s u 9 9 9 se Te s sn 9 e 8 e 9 sm ne 9 se O1 Ol gt N N 132 Electrical Control System 3 Controller 3 1Wireless Remote Controller 3 1 1RG51Q1 BGE SET TEMPERATURE ADJUST A CED MODE FAN SPEED SWING 4 ECO TIMER ON SWING peser TIMER OFF AIR DIRECTION General Function for wireless remote controller Controller Rated voltage 3 0V 2pieces of LRO3 7 batteries Operation condition Electrical Control System 5 60 133 Controller Buttons and functions 1 Adjust Y Decrease the s t temp Keeping pressing will decrease the temp with 1 0 58 2 Adjust 4 Increase the set temp Keeping pressing will increase the temp with 1 C 0 55 3 MODE Once pressing running mode will be selected in the following sequen
24. C DCT 7OHINVi CFT 7 GET TOORN 100HINVo Rotary Mitsubishi DCT 100HINVi CFT 100HINVi 2 General Information External Appearance 2 External Appearance 2 1 Indoor Units Super slim cassette 2 2 Outdoor Units Single fan outdoor unit Double fan outdoor unit General Information 3 Features 4 Features 4 1 To meet Europe Alevel actual EER COP of new product with BLDC motors of indoor amp outdoor unit and DC compressor will be higher than 3 4 4 2 Low ambient kit is standard for outdoor units 4 3 Network control function is standard for the indoor units 4 4 Standard auto restart function and follow me function 4 5 Slim cassette with standard remote controller wire controller and CCM for optional Med Duct and HESP duct with standard wired controller remote controller and CCM for optional 4 6 Standard anti cold air function 4 7 Standard auto defrosting function 4 8 Standard self diagnose function 4 9 Standard timer function and sleep mode function controlled by controller General Information 5 Indoor Units Part 2 Indoor Units Super Slim Cassette 7 6 Indoor Units Indoor Units Super Slim Cassette Type Super Slim Cassette Type m 8 gt DIMENSIONS sirsa 12 IB EC REN EIE 13 WIIN
25. Check whether the input current of the power supply wire is more than 14A For 24K itis 18A For 36K 1 it is 21 5A For 36K 3phase it is11A Yes Check whether the refrigerant system is ok Judge 2 Check whether the outdoor ambient temperature is higher than 50 No Y Yes Stop the unit Judge 3 Check whether the Mo den Yes Make the outdoor unit ventilate well outdoor unit is bad ventilation No y Judge 4 Check whether the heat exchanger is dirty Yes Clean the heat exchanger No v Let the refrigerant out then use the high Yes pressure nitrogen or refrigerant to blow pipe vacuumize and charge the refrigerant again Judge 5 The refrigerant pipe is blocked No outdoor main board and check whether Yes the system can run normally No v Y Replace the electric control box Trouble is solved D Electrical Control System 125 Troubleshooting 2 4 4 12 malfunction When compressor discharge temperature is higher than 115 the unit will stop and unit runs again when compressor discharge temperature is lower than 90 C P4 display Temperature protection of compressor discharge Check whether the Check whether the compressor discharge temp Yes refriae
26. FSX CLOCK display 6X OFFION display dHHHHHMMMMMMMHMHMHMHMMM DELENITI I An DA gt BIE Economical operation display v Mode select button MODE Press MODE button to select COOL DRY HEAT or FAN ONLY mode HEAT is invalid for COOL ONLY wire controller AUTO COOL DRY FAN Fan speed button FAN SPEED Press FAN SPEED to select fan speed from AUTO LOW MED and HIGH NOTE some air conditioners have no MED fan speed and then the MED is regarded as HIGH Economical operation displays Press ECONOMICAL to display economical operation if press ECONOMICAL again then the display disappears Lock display Press LOCK to display the icon of LOCK Press the button again then the icon of LOCK disappears In the mode of LOCK all the buttons are invalid except for LOCK button CLOCK display Usually display the clock set currently Press the button CLOCK for 4 seconds the HOUR part will flash press button A and V to adjust HOUR Press the button CLOCK again the minute part flash press button A or V to adjust MINUTE After clock set or clock operation it must press CONFIRM to complete the set TIMER ON OFF display Display ON at the state of TIMER ON adjustment or after only set the TIMER ON Display OFF at the state of TIMER OFF adjustment or after only set the TIMER OFF Display ON OFF if simultaneousl
27. bnormally 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 Outdoor Units 61 Sound Levels 7 Sound Levels Outdoor Unit Microphone 1 0m Note H 0 5 height of outdoor unit CCT 50HINVo 62 Outdoor Units Test operation 11 Test operation 11 1 test operation must be carried out after the entire installation has been completed 11 2 Please confirm the following points before the test operation NONO NO NO NO NO vv The indoor unit and outdoor unit are installed properly Tubing and wiring are correctly completed The refrigerant pipe system is leakage checked The drainage is unimpeded The ground wiring is connected correctly The length of the tubing and the added stow capacity of the refrigerant have been recorded The power voltage fits the rated voltage of the air conditioner There is no obstacle at the outlet and inlet of the outdoor and indoor units The gas side and liquid side stop values are both opened The air conditioner is pre heated by turning on the power 11 3 Test operation Set the air conditioner under the mode of COOLING by
28. ce AUTO COOL DRY NOTE No heating mode for cool only type unit 4 VERT SWING Used to stop or start horizontal louver movement or set the desired up down air flow direction The louver changes 6 degree in angle for each press If keep pushing more than 2 seconds the louver will swing up and down automatically 5 HORIZ SWING Used to stop or start vertical louver movement 6 AIR DIRECTION Used to set the desired up down air flow direction The louver changes 6 degree in angle for each press 7 ON OFF For turning on or turning off the air conditioner 8 FAN SPEED Fan speed will be selected in following sequence once pressing this button AUTO LOW MED 9 TIME ON For time ON setting Once pressing this button the time will increase by 0 5 hour When the set time exceeds 10 hours pressing the button will increase the time by 1 hour Adjusting the figure to 0 00 will cancel time ON setting 10 ECO Activate or turn off economic operation mode It is suggested to turn on this function when sleeping Only available when remote controller is used with corresponding unit 11 TIME OFF For time OFF setting Once pressing this button the time will increase by 0 5 hour When the set time exceeds 10 hours pressing the button will increase the time by 1 hour Adjust the figure to 0 00 will cancel time ON setting 12 C H inner located Press this button with a needle
29. check whether the system can work normally Yes NO Check whether the connecting line between main No Connect it tightly board and the IPM module is check ok or not heck whether th connected tightly powelsuppidine No Saen check ok connected correctly puoi and tightly Yes No No Check whether the connecting line of the compressor is connected correctly or tightly Connect it well check ok or not Check whether the lines in E part box are connected tightly Connect it tightly check ok or not Yes No No eplace the IPM module check whether the system can work normally Yes Check whether the bridge rectifiers are normal Use the multimeter to measure the resistance between each two terminals check whether there is the condition that value of b resistance 15 0 the main board Yes Y check whether the system Yes Replace the bridge rectifiers can work normally Check whether the 3300uF 400V electrolytic capacitor is normal No NO eplace the compressor Replace this electrolytic check whether the system Yes capacitor can work normally v Trouble is solved Electrical Control System 129 130 Troubleshooting 2 4 4 16 P7 malfunction P7 display
30. cteristics Power oor bo zou fe 49 e M eee E 5 2020 198 254 15 CCi00HNVi 0 220 240 254 1 MFA Max Fuse Amps A Indoor Units 15 Sound Levels 6 Sound Levels 1 4m Microphone Model Noise Power dB A SOHINVI CCTTOHINV CCTIOOHINY 16 Indoor Units Accessories 7 Accessories Quantity Tubing amp Fittings Soundproof insulation sheath Out let pipe 1 277 5 Drainpipe Fittings Out let pipe sheath Out let pipe clasp Remote controller amp Its Frame Remote controller amp Its Remote controller holder Frame Remote controller manual Dem 0 o0 _ Network wires Network wires Installation accessory Expansible hook The product you have might not be provided the Installation hook Installation hook hook following accessories Orifice nn Indoor Units 17 The Specification of Power 8 The Specification of Power Pme tee tme Frequency and Voltage 220 240V 50Hz 220 240V 50Hz INDOOR UNIT POWER 5 POWERWRNG mm Pme imme Frequency and Voltage 220 240V 50Hz 380 420V 50Hz id OUTDOOR UNIT POWER 5 POWER WIRING mm 305 9235 CIRCUIT BREAKER A 15 Indoor Outdoor Connecting Wiring 3x0 5 Weak Electric Signal Strong Electric Sig
31. he 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 1 3 9 Drain pump control For Duct amp Cassette Adopt the water level switch to control the action of drain pump Main action under different condition every 5 seconds the system will check the water level one time 1 When the A C operates with cooling including auto cooling and forced cooling mode the pump will start running immediately and continuously till stop cooling 2 Once the water level increase and up to the control point LED will alarm and the drain pump open and continue checking the water level If the water level fall down and LED disalarmed drain pump delay close 1 minute and operate with the last mode Otherwise the entire system stop operating including the pump and LED remain alarming after 3 minutes 1 3 10 Follow me 1 the indoor PCB receives the signal which results from pressing the FOLLOW ME button on remote controller the buzzer will emit a sound and this indicates the follow me function is initiated But when the indoor PCB receives signal which sent from remote controller every 3 minutes the buzzer will not respond When the unit is running with follow me function the PCB will control the unit according to the temperature from follow me signal and the temperature collection function of room tempera
32. hould xtrudes out of the Wire Controller Back Cover adjust the bottom of the Wire Controller Board to the Wire Controller Back Cover which should be fixed first then press the other end of the Wire NOTE Never turn screws too tightly or else the cover would be dented or the Liquid Crystal breaks Please leave enough long cable for maintenance of the Wire Controller Board Electrical Control System 139
33. ill increase the time by 1 hour Adjust the figure to 0 00 will cancel time ON setting 12 LOCK inner located Push this button to lock in all the current settings and the remote controller will not accept any operation except that of the LOCK Use the LOCK mode when you want to prevent settings from being changed accidentally Press the LOCK button again to cancel the LOCK function A lock symbol will appear on the remote controller display when the lock function is activated 13 RESET inner located Once the recessed RESET button is pressed all of the current settings will be cancelled and the controller will return to the initial settings 136 Electrical Control System Controller 3 2 Wired Remote Controller 3 2 1 KJR 10B and functions of buttons on the wire controller 6 NAME AND FUNCTIONS OF BUTTONS ON WIRE CONTROLLER ON OFF button Mode selection button 1 BC Fan speed selection 9 Adjust button A 9 Adjust button Y ane Swing button 42 Economical button 2 Timer on button 2 Timer off button 3 Clock button 4 Ok button 5 _ Reset button 6 COOL ONLY COOL and selection T
34. ired up down air flow direction The louver changes 6 degree in angle for each press 5 HORIZ SWING Used to stop or start vertical louver movement 6 FAN SPEED MODE Press the Mode and Fan speed button simultaneously for 2 seconds The remote Electrical Control System 135 Controller controls into faceplate setting state and the LCD shows F2 Press the to control the faceplate and press the TEMP DOWN Y to control the faceplate down Press any button to exit the faceplate setting state then the LCD back to the normal display 7 ON OFF For turning on or turning off the air conditioner 8 FAN SPEED Fan speed will be selected in following sequence once pressing this button AUTO LOW MED HIGH 9 TIME ON For time ON setting Once pressing this button the time will increase by 0 5 hour When the set time exceeds 10 hours pressing the button will increase the time by 1 hour Adjusting the figure to 0 00 will cancel time ON setting 10 ECO Select this function during the sleeping time It can maintain the most comfortable temperature and save energy This function is available on COOL HEAT or AUTO mode only NOTE While the unit is running under Energy saving mode it would be cancelled if press MODE FAN SPEED or ON OFF button 11 TIME OFF For time OFF setting Once pressing this button the time will increase by 0 5 hour When the set time exceeds 10 hours pressing the button w
35. l Yes Replace the water level switch v No Replace the water pump Yes v Check PCB board or replace the indoor main PCB Electrical Control System 109 Troubleshooting 2 4 1 5 Indoor fan Speed has been out of control Only for the units used DC motor 4 Shut off the power supply and turn it on 1 minute later Is it No The unit operates normally still displaying the error code Yes y E off the power supply Replace indoor fan rotate the fan by hand Does No motor it rotate properly z Yes v Check the wires of fan motor No Are all the connections good Yes Y Check the voltage between Correct the connections every port and GND port of fan motor connector does it comply with the table No Y Yes Replace indoor main PCB Is it still displaying the error code DC motor voltage input and output control chip is inside the motor ze 192 380 13 5 16 5 110 Electrical Control System Troubleshooting Control chip is in main PCB Feedback 1 5 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 have problems and need to be replaced Otherwise go to step 2 2 Power on and when the unit is in standb
36. ly when reaching the setting off time 1 3 6 5 Timer off on The machine will turn off automatically when reaching the setting off time and then turn on automatically when reaching the setting on time 1 3 6 6 The timer function will not change the AC current operation mode Suppose AC 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 AC running mode has not been changed 1 3 6 7 The setting time is relative time 1 3 7 Economy function 1 3 7 1 The sleep function is available in cooling heating or auto mode 1 3 7 2 Operation process in sleep mode is as follow When cooling the setting temperature rises 1 C be lower than 30 every one hour 2 hours later the setting temperature stops rising and the indoor fan is fixed at low speed When heating the setting temperature decreases 1 C be higher than 17 every one hour 2 hours later the setting temperature stops rising and indoor fan is fixed at low speed Anti cold wind function has the priority 1 3 7 3 Operation time in sleep mode is 7 hours After 7 hours the AC quits this mode but doesn t turns off 1 3 7 4 Timer setting is available 100 Electrical Control System Electrical Control Function 1 3 8 Auto Restart function The indoor unit is equipped with auto restart function which is carried out through an auto restart module In case of a sudden power failure t
37. nal 18 Indoor Units Field Wiring 9 Field Wiring Air Condition Link Circuit 202042890198 INDOOR UNIT INDOOR UNIT Power supply 1 Phase 220 240 Score cable 3x2 5mm 2 for the models which with auxiliary electric Lise Score cable 3 1 0mm 2 VUL WA J Power supply 1 Phase 220 240 un 4 Use Score cable 32 5mm 2 forthe models which with auxiliary electric heater FTE Lise Score cable 31 0mm for the others 3 core shielded cable 3x 0 5mm 3 core shielded cable 3 0 5mm Power supply 1 Phase 220 240 18K 30K 3 core cable 3x 2 Smm 36K 60K 3 core cable 3x4 0mm Power supply 3 Phase 380 415 30K 60K 5 core cable 5x2 5mm OUTDOOR UNIT OUTDOOR UNIT LI For 30K 60K Btu h with 3 Phase outdoor unit For 18K 60K Btu h with 1 Phase outdoor unit for the others Indoor Units 19 Outdoor Units Part 3 Outdoor Units 53 Do 55 delle Beleg MS 56 4 Wiring Diagrams cusa Urs MEM 57 9 60 6 Operation Limits ER 61 rece odi lg
38. on the indoor fan can be set to high med low auto And the anti cold wind function has the priority Auto fan action Electrical Control System 97 Electrical Control Function T1 Ts AT 4 Low 2 3 Medium High Y Anti cold Wind Function Setting fan speel Breeze 1 3 3 4 Defrosting mode Condition of defrosting Timell Time2 Time conditions time1 Time conditions Meet the following conditions 1 Running in heating mode 2 T423 C 3 Compressor is on 4 T3STempEnterDefrost ADD Cleared conditions Meet any one of the following conditions 1 Compressor is off 2 32 TempEnterDefrost ADD Time2 Time conditions Meet the following conditions 1 Running in heating mode 98 Electrical Control System Electrical Control Function 2 T4 lt 3 C 3 Compressor is on 4 T3STempEnterDefrost ADD Cleared conditions Meet any one of the following conditions 1 Compressor is off and 3 gt TempEnterDefrost ADD 2 last for 20 minutes 2 Running in cooling mode 3 Compressor is off for 1 hour Condition of entry defrosting time1 time2240 minutes When defrosting is end time1 and time2 are cleared Defrosting action 4 Way valve longer than 10min Compressor 105 308 Indoor fan 1 Outdoor fan PMV running 8 mins with 300P 480P PMV Condition of ending defrosting If
39. ow Ts 24 1 3 2 Cooling Mode 1 3 2 1 Outdoor PMW open angle control The unit is working in cooling mode with the EXV open 300P for 3 minutes then adjusting PMW open angle according to the temperature of compressor discharge every 2 minutes 1 3 2 2 Outdoor fan running rules DC FAN HI SPD ADD DC FAN MID SPD ADD DC FAN MIN SPD ADD DC FAN SLOW SPD ADD DC FAN SSLOW SPD ADD 1 3 2 3 Indoor fan running rules In cooling mode indoor fan runs all the time and the speed can be selected as high medium low and auto The auto fan 96 Electrical Control System Electrical Control Function 5 0 High lt 4 0 d Medium 3 0 7 2 0 Y Low 1 3 2 4 Evaporator low temperature T2 protection When 2 lt 2 C and lasts for minutes the indoor has no capacity demand and resume till 227 1 3 2 5 Condenser high temperature T3 protection When T3265 C for seconds the compressor will shut off When 3 lt 52 compressor will restart 1 3 3 Heating Mode 1 3 2 1 Outdoor PMW open angle control The unit is working in heating mode with the EXV open 300P for 3 minutes then adjusting PMW open angle according to the temperature of compressor discharge every 2 minutes 1 3 3 2 Outdoor fan running rules DC FAN SSLOW SPD ADD DC FAN SLOW SPD ADD DC FAN MIN SPD ADD DC FAN MID SPD ADD DC FAN HI SPD ADD 1 3 3 3 Indoor fan running rules When the compressor is
40. rant is leak is more than 115 C Check whether the wiring connection is right between compressor discharge temp No sensor and PCB according to wiring diagrams Stop leaking and add refrigerant y Correct the wiring connection gt Yes Judge The discharge temp sensor is broken Method Check whether the resistance of compressor discharge temp sensor is right refer to the Appendix 2 No y Replace the compressor discharge temp sensor P Yes y Replace outdoor main board 15 solved 126 Electrical Control System Troubleshooting 2 4 4 13 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 Replace the temperature sensor Check whether the condenser temperature is more than 65 C resistance of condenser temp sensor is correct refer to the Appendix 1 Yes Replace outdoor main board 50 b Judge 2 Check whether the heat exchanger is dirty Clean the heat exchanger T Let the refrigerant out then use the high Yes pressure nitrogen or refrigerant
41. remote controller and check the following points Indoor unit V VO V V V V VN VV Whether the switch on the remote controller works well Whether the buttons on the remote controller works well Whether the air flow louver moves normally Whether the room temperature is adjusted well Whether the indicator lights normally Whether the temporary buttons works well Whether the drainage is normal Whether there is vibration or abnormal noise during operation utdoor unit Whether there is vibration or abnormal noise during operation Whether the generated wind noise or condensed of by the air conditioner have influenced your neighborhood Whether any of the refrigerant is leaked Installation 93 Electrical Control System LFIS B 1211 Part 5 Electrical Control System 1 Electrical Control Function 95 2 Troubleshooting 104 3 CONO Dc RUP SU IRE RriR Sracui0s 133 94 Electrical Control System Electrical Control Function 1 Electrical Control Function 1 1 Definition T1 Indoor room temperature T2 Coil temperature of indoor heat exchanger middle T2B Coil temperature of indoor heat exchanger outlet T3 Coil temperature of condenser T4 Outdoor ambient temperature T5 Compressor discharge temperature 1 2 Main Protection 1 2 1 Time delay at restart for compressor 1 2 2 Temperature protection of compressor top The
42. t malfunction Defrosting Alarm lamp Communication malfunction between indoor X X and outdoor units Open or short circuit of T1 temperature sensor Open or short circuit of T2 temperature sensor Open or short circuit of T2B temperature sensor N Running lamp 1 2 3 4 5 PCB and up down panel PCB N 10 Full water malfunction 1 ommunication malfunction between master unit and slave unit 3 Other malfunction of master unit or slave unit X off flash at5Hz O flash at 0 5Hz X X X X X R Electrical Control System Timer lamp Display digital tube Im N m N Co gt NO en m 105 Troubleshooting 2 3 Outdoor unit malfunction ENCKENUT TT ON De m In low ambient cooling mode the LED displays LC or alternative displays between running frequency and LC each displays 0 55 106 Electrical Control System Troubleshooting 2 4 Solving steps for typical malfunction 2 4 1 For the indoor unit 2 4 1 1 Open or short circuit of temperature sensor Check the connections between temperature sensor and PCB Are the connections good No Correct the connections Yes Check the resistance value of the sensor via Appendix 1 Yes Replace indoor or outdoor PCB No Replace the
43. t of refrigerant pipe Connecting point of drain pipe Liquid side Connecting point of TIT refrigerant pipe Ei m L III 9 Ceiling 7 m Panel Outlet Inlet Outlet 880mm Ceiling hole Ground 2500mm 24 Model A H 24 205 gt 235 36 2276 245 2275 Indoor Units 3 Service Space Indoor Units ar DL P UO P P E NEE 1000mm N N N N S 4 N N N N N N N N N NR X gt x Nx S A N N X N N N N N Y N N N N N lt Y N ES N N Service Space 13 Wiring Diagrams 4 Wiring Diagrams CCT 50HINVi CCT 70HINVi CCT 100HINVi FUNCTION OF SWITCH 5 e SYITCH FOR GGL UNIT ADDRESS n RAM uL L CONTROLLER 202042190252 e ae ui tory cttlag 70 90009 3 28 105009 4 OHP gt RED BROWN BLUE E ISES E wh _ WIRE 4 hm CONTROLLER TO TO OUTDOOR BUS COMM BUS MOTE PLEASE USE SHIELDED WIRE SWING AR 14 Indoor Units Electric Characteristics 5 Electric Chara
44. t will display the content corresponding to No N After getting into the check function it will display No N with 1 5s meanwhile the low bit decimal of digit display flashing indicated to get into the check function display After 1 5s it will display the content corresponding to the digital display tube will display the follow procedure when push SW1 each time N Display Remark Normal display Display running frequency running state or malfunction code Actual data HP 10 If capacity demand code is higher than 99 the digital display tube will show single digit and tens digit For example the Ape COMANA GORE digital display tube show 5 0 means the capacity demand is 15 the digital display tube show 60 it means the capacity demand is 6 0 02 Amendatory capacity demand code 03 The frequency after the capacity requirement transfer 04 The frequency after the frequency limit 05 The frequency of sending to 341 If the temp is lower than 0 degree the digital display tube will lo Ta show O If the temp is higher than 70 degree the digital cooling T2B display tube will show 70 07 Condenser pipe temp T3 If the temp is lower than 9 degree the digital display tube will show 9 If the temp is higher than 70 degree the digital Outdoor ambient temp T4 display tube will show 70 If the indoor unit is not connected the digital display tube will show
45. the remote controller lonizer will work and the indicator light on display board will shine 4 4 Indoor Units 9 Features 1 4 External air duct design gt Reserve external air duct more flexible for the air supply 1 5 Built in draining pump gt Due to the improvement of structure more convenient to repair or replace the draining pump 4 1 uu ad gt Built in draining pump to make sure condensed water drain out reliably Max 750 ME er Ceiling 10 Indoor Units Features 1 6 Terminals for alarm lamp and long distance on off controller connection are standard gt Reserve terminals for the connection of alarm lamp and long distance on off controller more human control 1 7 Optional touch screen wired controller gt Touch screen wired controller is optional with error code indication function Better man machine conversation interface Undated structure design 4 way wire layout design no raised part at backside more convenient to place the wires and install the device 1 8 Twins Combination The units can be installed as Twin systems one outdoor unit can connect with two indoor units The indoor units can be combined in any of the different available ratings Indoor Units 11 Dimensions 2 Dimensions Tubing side Drain side 680 Hook location 780 Hook location 840 Body 950 Unit mm Connecting poin
46. tion For the super slim cassette 5 duct 2 4 3 1 Communication failure between master unit and indoor unit F3 Displayed Communication failure between master unit and slave unit Check the dial switch settings of aster unit and slave unit is it right Yes Check the PQE communication wires connection is it good enough Yes Y One of the 2 indoor PCBs is defective Connect only one indoor unit to the outdoor unit separately The one caused E1 error code is defective Problem is solved 114 Correct the settings Correct the wire connections Electrical Control System Troubleshooting 2 4 4 For the outdoor unit 2 4 4 1 EO malfunction display Outdoor EEPROM malfunction Yes Y If the EEPROM chip is welded on PCB replace the PCB directly Otherwise NO check whether the EEPROM chip plugged in PCB well Yes Y Replace the outdoor main board Insert the EEPROM well v Electrical Control System 115 Troubleshooting 2 4 4 2 E2 malfunction 2 display Indoor outdoor units communication error Power off then turn on the unit 5 seconds later reconnect the power wire Is the error still displaying after several minutes Yes v Check whether there s any interference Remove interference Such as too many lamps power Yes
47. to blow pipe vacuumize and charge the refrigerant again Judge 3 The refrigerant pipe is blocked Judge 1 Check whether the outdoor ambient temperature is higher than Yes Stop the unit Electrical Control System 127 Troubleshooting 2 4 4 14 P6 malfunction For single phase units At first test the resistance between every two ports of U V W of IPM and P N If any result of them is 0 close to 0 the IPM is defective Otherwise please follow the procedure below P6 display module protection Check whether the voltage range of P N on IPM module is Check whether the input power supply is Regulate it to correct then check whether the normal DC277 356V for 18 No No 2 D 24KBtu h DC277 410V for correct IN SET E an 36KBtu h Yes No Check whether the connecting line between main No Connect it tightly board and the IPM module is check ok or not heck whether th annet eersel connected tightly No and tightly check ok connected correctly pura and tightly Yes No No Check whether the connecting line of the compressor is connected correctly or tightly Connect it well check ok or not Check whether the lines in E part box are connected tightly Connect it tightly check ok or not
48. ture sensor will be shielded 2 When the follow me function is available the PCB will not respond according to the setting temperature from follow me signal every 3 minutes 3 The PCB will take action to the mode change information from remote controller signal and the follow me function will be turned off if the wired remote controller does not initiate follow me function 4 When the unit is running with follow me function if the PCB doesn t receive any signal from remote controller for 7 minutes or pressing FOLLOW ME button again the follow me function will be turned off automatically and the temperature collection function of room temperature sensor will be available the PCB will control the unit according to the room temperature detected from its own room temperature sensor and setting temperature 5 When the indoor PCB receives the follow me signal from wired remote controller the control is the same as that from wireless remote controller but buzzer will not respond When the PCB receives turning off follow me signal from wired remote controller the unit will quit follow me function at once The follow me function controlled by wired remote controller prevails that by wireless remote controller Electrical Control System 101 Electrical Control Function 1 3 11 Point Check Function There is a check switch in outdoor PCB Press the switch SW1 to check the states of unit when the unit is running Press the switch N times i
49. y measure the voltage of pin4 5 in feedback signal 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 pin 2 5 and pin 3 5 in feedback signal connector If any voltage is not positive voltage fluctuation the fan motor must have problems and need to be replaced Electrical Control System 111 Troubleshooting 2 4 2 For the super slim cassette with up down panel 2 4 2 1 Communication error between indoor unit and up down panel 2 4 2 2 Up down panel is defective FO or F1 Displayed Communication failure between indoor unit and up down panel panel is defective heck the wire connection between up down panel and indoor unit is it right Correct the connection Yes the up down panel repower the indoor unit Connect a display board and turn on it can it start The indoor PCB is defective Change it Yes The up down panel is defective Change it Problem is solved 112 Electrical Control System Troubleshooting 2 4 2 3 Up down panel is not closed F2 Displayed The up down panel is not closed Lift the filter panel to close it Check if the filter panel of up down panel is closed Yes Y The up down panel is defective Change it Problem is solved Electrical Control System 113 Troubleshooting 2 4 3 For the unit with TWINS func
50. y set the mode of TIMER ON and TIMER OFF Temperature display area Usually display the set temperature Press the buttons of and to set temperature at the mode of FAN there is no figure display in the area Electrical Control System Controller Installation Wiring Principle Sketch Wire Joint Infraed Pipe 5 ME fr A U LM CM MCN M MES Dj HD Bl 181 5 Shield Cable the length is decided by installation db GND Indoor Unit Switch Board A Indoor Unit Installation Notice When the air conditioner needs the constant frequency wire Controller be sure adding a Wire Joint with 5 terminal named A B C D E in indoor unit and fixing a infrared emitter whose anode and cathode connecting with A and B near the receiver in the Indoor Unit Switch Board then connecting the terminal 5v GND Run in the Switch Board to C D E respectively Turn a screwdriver at the concave on bottom panel of the Wire Controller to remove the Back Cover Wire Controller Back Cover _ Wire Controller LCD BE m Wire Controller Board Wood Mounting Screw M4X20 Wire Controller Bottom Cover When installing the Wire Controller Cover be sure there is a hole in the wall to avoid the Wire Controller Back Cover being fixed directly to the wall which is not allowed for the Wire Joint When installing the Wire Controller you s
Download Pdf Manuals
Related Search