Service Manual - Carriercca.com
Contents
1. More than 60cm More than 60cm Service space 1 Air inlet Model W D H W1 A B 38KCL109313G 700 240 540 757 458 250 38KCL112313G 780 250 540 843 549 276 38KCL118313G 760 285 590 823 530 290 38KCL124313G 845 320 700 908 560 335 Refrigerant Cycle Diagram INDOOR HEAT EXCHANGE EVAPORATOR OUTDOOR 4 CHECK VALVE LIQUID SIDE Heating Model only 4 OIG 2 WAY 4 1000007 CAPILIARY TUBE HEAT EXCHANGE CONDENSER ETE 1 4 GAS SIDE b PAM X D lt 3 WAY VALVE REVERSING VALVE Heating Model only ACCUMULATOR gt P lt q COOLING COMPRESSOR lt HEATING 5 Wiring Diagram 5 1 Indoor Unit 42KCL109313G 42KCL112313G INDOOR WIRING DIAGRAM BROWN BLACK Y G GREEN BLUE or WHI POWER SUPPLY TRANSFORMER PIPE TEMP SENSOR ROOM TEMP SENSOR L ISPLAY BOARD A D oTa x PLASMA or UV LED MICRO SWITCH 202032390575 INDOOR WIRING DIAGRAM M IN FAN 2 2 Glor GREEN Fen FLUE or HITE INDOOR UNIT 10 202032790 200 42KCL124313G INDOOR WIRING DIAGRAM 5 U2. 202033090585 11 5 2 Outdoor Unit 38KCL109313G 38KCL 112313G 202037391056 ERN SENSOR eom EE OLPTEMP SENSOR L DISCHARGE SENSOR DOOR UNIT Note according to diferent terminals GND can be connected n diferent ways dOSS3udNC2 1 AMBIENT SENE HEATEXCHA NGER SENSOR 202037790524 TN d m Note according to diferent te minals OUTDOOR MAIN PCB ees s ee ee R1005 R20035 12 38KCL124313G HEAT EXCHANGES SENSOR BLAGK LI 5 Ea DE WH TE GEI OUTDOOR MAIN PCB BLUE YELLOW T lt REACTOR 860 25 3 GRANGE FACTOR R1815 5 ORANGE 3 202038090482 F ORANGE YELLOW OUTDOOR WIRING DIAGRAM 13 TO INDOOR UNIT POWER SUPPLY 6 Installation Details 6 1 Wrench torque sheet for installation Outside diameter Torque Additional tightening torque mm inch N cm N cm 06 35 1 4 1500 153kgf cm 1600 163kgf cm 09 52 3 8 2500 255kgf cm 2600 265kgf cm 012 7 1 2 3500 357kgf cm 3600 367kgf cm 015 9 5 8 4500 459kgf cm 4700 479kgf cm 019 3 4 6500 663kgf cm 6700 683kgf cm 6 2 Connecting the cables The power cord of connect should be selected according to the following specifications sheet Rated current of appliance Nominal cross sectional area mm The cable size and the current of the fuse or s
3. No 9 Correct the connections 37 9 2 7 High temperature protection of compressor top diagnosis and solution Check if the air flow system of indoor and outdoor units are obstructed No Y Turn off the power supply and turn it on 10 minutes later Yes Y Check if the unit can start normally Yes Y Check if the refrigerant charge volume is normal lt Y Refrigerant system is blocked such as capillary or welded point of pipes Yes Clear up the air inlet and outlet or the heat exchanger of indoor and outdoor units No Check if all the connection especially the connection of OLP Over Load Protector sensor is good Yes Y No Correct the connection Measure the resistance between the two ports of gt the OLP Is it zero Replace the OLP _ Yes Replace the outdoor control PCB Recharge the correct refrigerant volume 38 9 2 8 Inverter compressor drive error diagnosis and solution Check all the wires between control PCB module PCB and compressor Yes Y No Correct the connections IPM continuity check Check if the IPM terminal resistance values are uniform Yes Replace outdoor control PCB Does the problem remain
4. Increase the frequency to the higher level until to F8 F Keep the current frequency G Decrease the frequency to the lower level until to F1 H Run at F1 for 1h if T1 Ts 2 C the compressor will stop Meanwhile the compressor running frequency is limited by the current I3COOL I2COOL I1 COOL Off Compressor stops Decrease Decrease the running frequency to the lower level Hold Keep the current frequency 29 Resume No limitation for frequency Note When AC is in hold zone for 3 minutes the compressor frequency will rise to the higher level frequency will increase twice at most 8 4 2 2 Outdoor fan running rules T4 4 High 22 9 20 Low 8 4 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 Auto fan in cooling mode acts as follow T1 Ts High Medium 15 4 Low 8 4 2 4 Condenser temperature protection 55 C T3 60 C the compressor frequency will decrease to the lower level until to F1 and then runs at F1 If T3 54 C the compressor will keep running at the current frequency T3 52 C the compressor will not limit the frequency and resume to the former frequency T3 gt 60 C for 5 seconds the compressor will stop until T3 lt 52 C 8 4 2 5 Evaporator temperature protection T2 lt 0 C the compressor will stop and restart when 2
5. T1 Indoor room temperature T2 Coil temperature of evaporator T3 Coil temperature of condenser T4 Outdoor ambient temperature T5 Compressor discharge temperature 8 2 Display function 8 2 1 Icon explanation on indoor display board c 00000 AUTO TIMER DEF L BH FREQUENCY Signal receptor D Auto indicator This indicator illuminates when the air conditioner is in AUTO operation 2 Timer indicator This indicator illuminates when TIMER is set ON OFF 3 DEF Indicator This indicator does not include in these models 4 TEMPERATURE indicator Usually it displays the temperature settings When change the setting temperature this indicator begins to flash and stops 20 seconds later It displays the room temperature when the air conditioner is in FAN only operation and the range of that is 0 50 C When the unit stops operation it returns to original factory settings 5 Frequency indicator This indicator appears only when the compressor is in operation and indicates the current operating frequency 26 8 3 Main Protection 8 3 1 Three Minutes Delay at restart for compressor 1 minute delay for the 1 time start up and 3 minutes delay for others 8 3 2 Temperature protection of compressor top The unit will stop working when the compressor top temp protector cut off and will restart after the compressor top temp protector restart 8 3 3 Temperature protection of compressor discharge When the
6. before disconnecting the hose 7 Mount the valve stem caps and the service port Use torque wrench to tighten the service port cap to a torque of 18N m Be sure to check for gas leakage 6 5 Adding the refrigerant after running the system for many years Indoor unit AEN Liquid NS _ 227 way valve la Outdoor unit Charging cylinder k3 Electronic scale Procedure 1 Connect the charge hose to the 3 way service port open the 2 way valve and the 3 way valve Connect the charge hose to the valve at the bottom of the cylinder If the refrigerant is RA10A make the cylinder bottom up to ensure liquid charge 2 Purge the air from the charge hose Open the valve at the bottom of the cylinder and press the check valve on the charge set to purge the air be careful of the liquid refrigerant 3 Put the charging cylinder onto the electronic scale and record the weight 4 Operate the air conditioner at the cooling mode 5 Open the valves Low side on the charge set and charge the system with liquid refrigerant 19 6 When the electronic scale displays the proper weight refer to the gauge and the pressure of the low side disconnect the charge hose from the 3 way valve s service port immediately and turn off the air conditioner before disconnecting the hose 7 Mount the valve stem caps and the service port Use torque wrench to tighten the service port cap to a to
7. compressor discharge temp is getting higher the running frequency will be limited as below rules Compressor discharge temp T5 gt 115 C for 5s compressor stops 108 lt T5 lt 115 C decrease the frequency to the lower level every minutes 90 lt T5 lt 105 C keep running at the current frequency T5 90 C no limit for frequency 8 3 4 Fan Speed is out of control When Indoor Fan Speed keeps too low 300RPM for certain time the unit will stop and the LED will display the failure 8 3 5 Inverter module Protection The Inverter module has a protection function about current voltage and temperature If these protections happen the corresponding code will display on indoor unit and the unit will stop working 8 3 6 Indoor fan delayed open function When the unit starts up the louver will be active immediately and the indoor fan will open 10s later 8 3 7 Compressor preheating functions Preheating permitting condition If T4 outdoor ambient temperature lt 3 and the machine connects to power supply newly or if T4 lt 3 C and compressor has stopped for over 3 hours the compressor heating cable will work Preheating mode A weak current flow through the coil of compressor from the wiring terminal of the compressor then the compressor is heated without operation Preheating release condition If T4 gt 5 C or the compressor starts running the preheating function will stop 27 8 3 8 Zero crossing detection err
8. 5 seconds the machine will turn into forced cooling mode In forced auto forced cooling or any other operation mode pressing touch button will turn off the machine 8 4 5 2 In forced operation mode all general protections and remote control are available 8 4 5 3 Operation rules Forced cooling mode The compressor runs at F2 frequency and indoor fan runs as breeze After running for 30 minutes the machine will turn to auto mode as 24 C setting temperature Forced auto mode The action of forced auto mode is the same as normal auto mode with 24 C setting temperature 8 4 6 Timer function 8 4 6 1 Timing range is 24 hours 8 4 6 2 Timer on The machine will turn on automatically when reaching the setting time 8 4 6 3 Timer off The machine will turn off automatically when reaching the setting time 8 4 6 4 Timer on off The machine will turn on automatically when reaching the setting on time and then turn off automatically when reaching the setting off time 8 4 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 8 4 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 8 4 6 7 The setting time is relative tim
9. C10 INVERTER SERIES Service Manual 2012 CSI A1 1206 CONTENTS TsPrecaution sorelle A 1 1 1 Safety Precaution iii eis 1 1 2 Function 2 5 KIM 6 34 Indoor Unit utens ce E De nb mn ntu 6 3 2 Qutdoor Unit o tinere e Oe RC E DDR DI NR e TB 8 4 Refrigerant Cycle Diagram u uu 9 5 Wiring coria aha nana nn a Ta a TA A uyu 10 5 1 Indoor 10 5 2 Quidoor Unite eife ende endet ende edere ee eei ess 12 6 Installation 2 22 RM 14 6 1 Wrench torque sheet for installation 14 6 2 Connecting the cables eene nennen rnnt renes nennen 14 6 3 Pipe length and the 15 6 4 Installation for the first MC seseris oet A NAA nnne nens 16 6 5 Adding the refrigerant after running the system for many 19 6 6 Re installation while the indoor unit need to be 20 6 7 Re installation while the outdoor unit need to 22 7 Operation CharacteristiCs hii dian ERR EE ER ER ERE ERR ER ER ER ini 25 B Electron
10. Yes Replace the compressor No Replace outdoor module PCB 9 2 9 Zero crossing detection error diagnosis and solution Check if the connections and Correct the connections Turn on the No power supply is normal unit when the power supply is good Yes Y Indoor PCB is defective Replace indoor PCB 39 Main parts check 1 Temperature sensor checking Disconnect the temperature sensor from PCB measure the resistance value with a tester LiL w Tester Temperature Sensors Room temp T1 sensor Indoor coil temp T2 sensor Outdoor coil temp T3 sensor Outdoor ambient temp T4 sensor Compressor discharge temp T5 sensor Measure the resistance value of each winding by using the multi meter Table 1 Some frequently used R T data for T1 T2 T3 and T4 sensor Temere s s s w 2 9 Resistance Value K 9 207 16 1 126 10 s sz 24 Table 2 Some frequently used R T data for T5 sensor m m Jo Jo sr es s 37 Resistance value KO 200 m 5555522 5 5225 222 252 2222222222222222 160 gt 140 idee 120 100 FE 60 4o ER E 20 0 Temperature 40
11. age of the connecting points of the piping If bubbles come out the pipes have leakage 1 Air purging with vacuum pump Indoor unit Liquid side Outdoor unit 1 2 ES Close Gas side gt Three way valve Manifold valve Close Compound mete Pressure NC gauge 0 1MPa XQ el Handle Lo U Handle Hi Charge hose Charge hose Vacuum ONCE Q pump Vacuum pump Completely tighten the flare nuts of the indoor and outdoor units confirm that both the 2 way and 3 way valves are set to the closed position Connect the charge hose with the push pin of handle lo to the 3 way valves gas service port Connect the charge hose of handle hi connection to the vacuum pump Fully open the handle Lo of the manifold valve Operate the vacuum pump to evacuate Make evacuation for 30 minutes and check whether the compound meter indicates 0 1Mpa If 16 N w the meter does not indicate 0 1Mpa after pumping 30 minutes it should be pumped 20 minutes more If the pressure can t achieve 0 1Mpa after pumping 50 minutes please check if there are some leakage points Fully close the handle Lo valve of the manifold valve an
12. ay valves to the open position Be sure to use a hexagonal wrench to operate the valve stems 7 Mount the valve stems nuts and the service port cap Be sure to use a torque wrench to tighten the service port cap to a torque 18 Be sure to check the gas leakage 3 Adding the refrigerant if the pipe length 5m Indoor unit Liquid sida S gt e wie S Outdoor unit J ZAN Gas side Charging cylinder Electronic scale Procedure 1 Connect the charge hose to the charging cylinder open the 2 way valve and the 3 way valve Connect the charge hose which you disconnected from the vacuum pump to the valve at the bottom of the cylinder If the refrigerant is R410A make the cylinder bottom up to ensure the liquid charge 2 Purge the air from the charge hose Open the valve at the bottom of the cylinder and press the check valve on the charge set to purge the air be careful of the liquid refrigerant 3 Put the charging cylinder onto the electronic scale and record the weight 4 Operate the air conditioner at the cooling mode 5 Open the valves Low side on the charge set and charge the system with liquid refrigerant 18 6 When the electronic scale displays the proper weight refer to the table disconnect the charge hose from the 3 way valve s service port immediately and turn off the air conditioner
13. d stop the operation of the vacuum pump Confirm that the gauge needle does not move approximately 5 minutes after turning off the vacuum pump 7 Turn the flare nut of the 3 way valves about 45 counterclockwise for 6 or 7seconds after the gas coming out then tighten the flare nut again Make sure the pressure display in the pressure indicator is a little higher than the atmosphere pressure Then remove the charge hose from the 3 way valve 8 Fully open the 2 way valve and 3 way valve and securely tighten the cap of the 3 way valve 2 Air purging by refrigerant Charging cylinder Procedure 1 Confirm that both the 2 way and 3 way valves are set to the closed position 2 Connect the charge set and a charging cylinder to the service port of the 3 way valve 3 Air purging Open the valves on the charging cylinder and the charge set Purge the air by loosening the flare nut on the 2 way valve approximately 45 for 3 seconds then closing it for 1 minute repeat 3 times After purging the air use a torque wrench to tighten the flare nut on the 2 way valve 4 Check the gas leakage Check the flare connections for gas leakage 5 Discharge the refrigerant 17 Close the valve on the charging cylinder and discharge the refrigerant by loosening the flare nut on the 2 way valve approximately 45 until the gauge indicates 0 3 to 0 5 Mpa 6 Disconnect the charge set and the charging cylinder and set the 2 way and 3 w
14. e 8 4 7 Sleep function mode 8 4 7 1 Operation time in sleep mode is 7 hours After 7 hours the AC quits this mode and turns off 8 4 7 2 Operation process in sleep mode is as follow When cooling the setting temperature rises 1 C be lower than 30 C every one hour 2 hours later the 32 setting temperature stops rising and indoor fan is fixed as low speed 8 4 7 3 Timer setting is available 8 4 7 4 When user uses timer off function in sleep mode or sleep function in timer off mode if the timing is less than 7 hours sleep function will be cancelled when reaching the setting time If the timing is more than 7 hours the machine will not stop until reaches the setting time in sleep mode 8 4 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 the module memorizes the setting conditions before the power failure The unit will resume the previous operation setting not including swing function automatically after 3 minutes when power returns If the memorization condition is forced cooling mode the unit will run in cooling mode for 30 minutes and turn to auto mode as 24 C setting temp If AC is off before power off and AC is required to start up now the compressor will have 1 minute delay when power on Other conditions the compressor will have 3 minutes delay when restarts 9 Troubleshooting 9 1 Indoor Unit Error D
15. e operating the air conditioner in the cooling cycle however one time is not sufficient wait approximately 1 minute and then repeat the procedure 5 When the electronic scale displays the proper weight disconnect the charge hose from the 3 way valve s service port immediately If the system has been charged with liquid refrigerant while operating the air conditioner turn off the air conditioner before disconnecting the hose 6 Mounted the valve stem caps and the service port 23 Use torque wrench to tighten the service port cap to a torque of 18N m Be sure to check for gas leakage 24 7 Operation Characteristics Temperature i gt Cooling operation Drying operation Mode Room temperature 217 C gt 10 0C 50 C 15 C 50 C NE E utdoor temperature For the models with low temperature cooling system CAUTION 1 If the air conditioner is used beyond the above conditions certain safety protection features may come into operation and cause the unit to operate abnormally 2 The room relative humidity should be less than 80 If the air conditioner operates beyond this figure the surface of the air conditioner may attract condensation Please set the vertical air flow louver to its maximum angle vertically to the floor and set HIGH fan mode 3 The optimum performance will be achieved during this operating temperature zone 25 8 Electronic function 8 1 Abbreviation
16. e set and a charging cylinder to the service port of the 3 way valve Leave the valve on the charging cylinder closed 3 Air purging Open the valves on the charging cylinder and the charge set Purge the air by loosening the flare nut on the 2 way valve approximately 45 for 3 seconds then closing it for 1 minute repeat 3 times After purging the air use a torque wrench to tighten the flare nut on the 2 way valve 4 Check the gas leakage Check the flare connections for gas leakage 5 Discharge the refrigerant 21 Close the valve on the charging cylinder and discharge the refrigerant by loosening the flare nut on the 2 way valve approximately 45 until the gauge indicates 0 3 to 0 5 Mpa 6 Disconnect the charge set and the charging cylinder and set the 2 way and 3 way valves to the open position Be sure to use a hexagonal wrench to operate the valve stems 7 Mount the valve stems nuts and the service port cap Be sure to use a torque wrench to tighten the service port cap to a torque 18N m Be sure to check the gas leakage 6 7 Re installation while the outdoor unit need to be repaired 1 Evacuation for the whole system Indoor unit P Liquid side Outdoor unit way valve n QV Open LA Vacuum pump Procedure 1 Confirm that both the 2 way and 3 way valves are set to the opened position 2 Connect the vacuum pump to 3 way valve s service port 3 Evacua
17. es have leaked 2 Function Model Names of Indoor Outdoor Units killer of formaldehyde lonizer O Silver Ico Filter O Vitamin C Filter O 3M HAM Filter O Bio Filter O Golden Fin O Self Clean O Follow me O Capacity Indoor units Outdoor units 9K 42KCL109313G 38KCL109313G DE 12K 42KCL112313G 38KCL112313G Inverter 18K 42KCL118313G 38KCL118313G 24K 42KCL124313G 38KCL124313G Filter 8 degree heating O Heat compensation O Self diag function Hydrophilic aluminum fin Anti rust cabinet Valve protection cover PTC Heating Belt O Compressor Crankcase Heater O O optional function HEATING FUCTIONS DO NOT FIT FOR THESE MODELS 3 Dimension 3 1 Indoor Unit 42KCL109313G 42KCL112313G 42KCL118313G 42KCL124313G R mm L mm H mm Dimension of installation hole mm 42KCL109313G m 42KCL112313G s Dimension of installation hole mm 42KCL124313G 106 5 65 3 2 Outdoor Unit More than 30cm
18. gt 5 0 T2 lt 4 C the compressor frequency will be limited and decreased to the lower level 30 4 C T2s7 C the compressor will keep the current frequency T2 gt 7 C the compressor frequency will not be limited 8 4 3Auto mode This mode can be chosen with remote controller and the setting temperature can be changed between 17 30 C In auto mode the machine will choose cooling or fan only mode according to AT AT T1 Ts Indoor fan will run at auto fan of the relevant mode The louver operates same as in relevant mode If the setting temperature is modified the machine will choose running function again 8 4 4 Drying mode 8 4 41 Indoor fan speed is fixed at breeze and can t be changed The louver angle is the same as in cooling mode 8442 Compressor running rules Hears T 8 4 4 3 Low indoor room temperature protection In drying mode if room temperature is lower than 10 C the compressor will stop and not resume until room temperature exceeds 12 C 8 4 4 4 Evaporator anti freezing protection condenser high temperature protection and outdoor unit 31 frequency limit are active and the same as that in cooling mode 8 4 4 5 The outdoor fan operates the same as in cooling mode 8 4 5 Forced operation function 8 4 5 1 Enter forced operation function When the machine is off pressing the touch button will carry the machine to forced auto mode If pressing the button once again within
19. ic TUNO OM ss 26 kt Akan tette 26 8 2 Display function 26 9 3 Mais Fote irae rcs tete u Qu u u evt Qu Q evt Qa au 27 8 4 Modes and Fufllctions Sursis seisen eoe eee E e re a t 28 9 Troubleshooting nut e s 33 9 1 Indoor Unit Error eene nene 33 9 2 Diagnosis and Sol tlon fs os naa aa eaaet be een fedes 34 1 Precaution 1 1 Safety Precaution B prevent injury to the user or other people and property damage the following instructions must be followed dq incorrect operation due to ignoring instruction will cause harm or damage H Before service the unit be sure to read this service manual at first 1 2 Warning gt Installation B not use a defective or underrated circuit breaker Use this appliance a dedicated circuit There is risk of fire or electric shock H For electrical work contact the dealer seller a qualified electrician or an authorized service center Do not disassemble or repair the product there is risk of fire or electric shock Always ground the product There is risk of fire or electric shock B Install the panel and the cover of co
20. isplay Display LED STATUS EO EEPROM parameter error E1 Indoor unit and outdoor unit communication protection E2 Zero crossing signal error Indoor fan speed has been out of control E5 Open or short circuit of outdoor temperature sensor or outdoor unit EEPROM parameter error Open or short circuit of room or evaporator coil temperature sensor IPM malfunction or IGBT over strong current protection Over voltage or too low voltage protection Temperature protection of compressor top Inverter compressor drive error Note 4 amp Reserved function 33 9 2 Diagnosis and Solution 9 2 1 EEPROM parameter error diagnosis and solution Shut off the power supply and turn it on 5 seconds later Is it still displaying the error code Yes y Is the EEPROM chip plugged in PCB well No Correct the connection Yes Replace the indoor PCB 34 9 2 2 Indoor unit and outdoor unit communication protection error diagnosis and solution Power off then turn on the unit 5 seconds later reconnect the power wire Is the error still displaying after several minutes Yes Check all the wirings between indoor and outdoor indoor PCB and outdoor PCB following the wiring diagram Are all the wirings connected correctly Yes Measure Vs is it moving alternately between positive value and negat
21. ive value Vs is the voltage between S N of outdoor unit Yes Y Is the wiring to the outdoor PCB Is the wiring to the indoor PCB connected correctly connected correctly Yes Yes Y v Change the outdoor main PCB Change the indoor main PCB Y Y Power on Is the error extinguished Power on Is the error extinguished No No Y Y Change the indoor main PCB Change the outdoor main PCB 35 9 2 3 Indoor fan speed has been out of control diagnosis and solution Shut off the power supply and turn it on 5 seconds later Is it still displaying the error code Yes Shut off Yr power supply rotate the cross fan by hand Does it rotate properly Yes Check the wires of fan motor Are all the connections good Yes Y Check the resistance value of indoor fan motor is it normal No The unit operates normally Disassembly the N connection between fan and motor check if the bearing is normal No Replace the bearing Yes No Correct the connections v Replace indoor fan motor Yes Replace indoor PCB 9 2 4 Open circuit or short circuit of temperature sensor diagnosis and solution Check the connections between temperature sensor a
22. nd PCB Are the connections good Yes Y happen again Replace the sensor and check if the problem gt Correct the connections Yes Replace indoor or outdoor PCB 36 9 2 5 IPM malfunction or IGBT over strong current protection diagnosis and solution Check if the wiring between module PCB and compressor No Correct the connection connected correctly Yes IPM continuity check Check if the IPM terminal resistance values are uniform No Replace the module PCB Yes 7 C t the installation tighten th orrect the installation tighten the Check if the IPM installed correctly No screws and apply silicon grease Yes Y Check if the outdoor fan N Correct the connection of fan motor can run properly o or replace the fan motor Yes Y Replace outdoor control PCB Does the problem still remain Yes Y Replace the compressor 9 2 6 Over voltage or too low voltage protection diagnosis and solution Check if the power Disconnect the unit with power supply and try to A No gt supply is normal restart the unit when power supply gets normal Yes Y Check if all the connections are good Yes Y Check if the voltage between P and N is around DC 320V No Replace outdoor control PCB
23. ntrol box securely There is risk of fire of electric shock WB Always install a dedicated circuit and breaker Improper wiring or installation may cause fore or electric shock B Use the correctly rated breaker of fuse There is risk of fire or electric shock B Do not modify or extend the power cable There is risk of fire or electric shock B Do not install remove or reinstall the unit by yourself customer There is risk of fire electric shock explosion or injury B caution when unpacking and installing the product Sharp edges could cause injury be especially careful of the case edges and the fins on the 1 condenser and evaporator H For installation always contact the dealer or an authorized service center Do not install the product on defective installation stand B the installation area does not deteriorate with age If the base collapses the air conditioner could fall with it causing property damage product failure and personal injury B not let the air conditioner run for a long time when the humidity is very high and a door or a window is left open B Take care to ensure that power cable could not be pulled out or damaged during operation There is risk of fire or electric shock B Donot place anything on the power cable There is risk of fire or electric shock B Donot plug or unplug the power supply plug during operation There is risk of fire or electric shock B D
24. o not touch operation the product with wet hands Donot place a heater or other appliance near the power cable There is risk of fire and electric shock B not allow water to run into electrical parts It may cause fire failure of the product or electric shock B Do not store or use flammable gas or combustible near the product There is risk of fire or failure of product B Do not use the product in a tightly closed space for a long time Oxygen deficiency could occur B When flammable gas leaks turn off the gas and open a window for ventilation before turn the product on B sounds or smoke comes from product turn the breaker off or disconnect the power supply cable There is risk of electric shock or fire WB Stop operation and close the window in storm or hurricane If possible remove product from the window before the hurricane arrives 2 There is risk of property damage failure of product or electric shock B Do not open the inlet grill of the product during operation Do not touch the electrostatic filter if the unit is so equipped There is risk of physical injury electric shock or product failure B When the product is soaked contact an authorized service center There is risk of fire or electric shock B Be caution that water could not enter the product There is risk of fire electric shock or product damage B Ventilate the product from time to time when operating it t
25. ogether with a stove etc There is risk of fire or electric shock B Turn the main power off when cleaning or maintaining the product There is risk of electric shock B When the product is not be used for a long time disconnect the power supply plug or turn off the breaker There is risk of product damage or failure or unintended operation B Take care to ensure that nobody could step on or fall onto the outdoor unit This could result in personal injury and product damage CAUTION B Always check for gas refrigerant leakage after installation or repair of product Low refrigerant levels may cause failure of product B Install the drain hose to ensure that water is drained away properly A bad connection may cause water leakage even when installing the product It can avoid vibration of water leakage B Do not install the product where the noise or hot air from the outdoor unit could damage the neighborhoods It may cause a problem for your neighbors B Use two or more people to lift and transport the product B Do not install the product where it will be exposed to sea wind salt spray directly It may cause corrosion on the product Corrosion particularly on the condenser and evaporator fins 3 could cause product malfunction or inefficient operation gt Operational B Do not expose the skin directly to cool air for long time Do not sit the draft B not use the product for s
26. or protection If AC detects time interval is not correct for continuous 240s the unit will stop and the LED will display the failure The correct zero crossing signal time interval should be between 6 13ms 8 4 Operation Modes and Functions 8 4 1 Fan mode 1 Outdoor fan and compressor stop 2 Temperature setting function is disabled and no setting temperature is displayed 3 Indoor fan can be set to high med low auto 4 The louver operates same as in cooling mode 5 Auto fan 8 4 2 Cooling Mode 1 27 5 27 25 5 25 8 4 2 1 Compressor running rules High Medium The maximum operation frequency of compressor after starting submits to following rule T4 4 7 45 43 40 38 30 28 22 20 4 Fmax F7 Fmax F8 Fmax F6 Fmax F3 If users switch on AC by remote controller the compressor will run at the Fmax frequency for 7 28 minutes according to the outdoor ambient temp During the 7 minutes the frequency limitation is active 7 minutes later the compressor running frequency will be controlled as below Tl Ts t 3 5 3 0 2 5 2 0 1 5 1 0 0 5 0 5 1 0 While the zones of A B C are corresponding to different compressor running frequency Note When T 1 Ts keeps in the same temp zone for 3 minutes the compressor will run as the below rules
27. pecial purposes such as preserving foods works of art etc It is a consumer air conditioner not a precision refrigerant system There is risk of damage or loss of property B Do not block inlet or outlet of air flow H Use a soft cloth to clean Do not use harsh detergents solvents etc There is risk of fire electric shock or damage to the plastic parts of the product B Donot touch the metal parts of the product when removing the air filter They are very sharp B Donot step on or put anything on the product outdoor units B Always insert the filter securely Clean the filter every two weeks or more often if necessary A dirty filter reduces the efficiency of the air conditioner and could cause product malfunction or damage B Do not insert hands or other objects through air inlet or outlet while the product is operated B not drink the water drained from the product B Usea firm stool or ladder when cleaning or maintaining the product Be careful and avoid personal injury B Replace the all batteries the remote control with new ones of the same type Do not mix old and new batteries or different types of batteries There is risk of fire or explosion B Do not recharge or disassemble the batteries Do not dispose of batteries in a fire They may burn of explode B Ifthe liquid from the batteries gets onto your skin or clothes wash it well with clean water Do not use the remote of the batteri
28. rque of 18N m Be sure to check for gas leakage 6 6 Re installation while the indoor unit need to be repaired 1 Collecting the refrigerant into the outdoor unit Indoor unit Y N Z Liquid side mo Outdoor unit 4 E 7 2 way rave N 2 ki Close 1 y b p Procedure 1 Confirm that both the 2 way and 3 way valves are set to the opened position Remove the valve stem caps and confirm that the valve stems are in the opened position Be sure to use a hexagonal wrench to operate the valve stems 2 Connect the charge hose with the push pin of handle lo to the 3 way valves gas service port 3 Air purging of the charge hose Open the handle Lo valve of the manifold valve slightly to purge air from the charge hose for 5 seconds and then close it quickly 4 Set the 2 way valve to the close position 20 5 Operate the air conditioner at the cooling cycle and stop it when the gauge indicates 0 1MPa 6 Set the 3 way valve to the closed position immediately Do this quickly so that the gauge ends up indicating 0 3 to 0 5Mpa Disconnect the charge set and tighten the 2 way and 3 way valve s stem nuts Use a torque wrench to tighten the 3 way valves service port cap to a torque of 18N m Be sure to check for gas leakage 2 Air purging by the refrigerant Procedure 1 Confirm that both the 2 way and 3 way valves are set to the closed position 2 Connect the charg
29. tion for approximately one hour Confirm that the compound meter indicates 0 1Mpa 4 Close the valve Low side on the charge set turn off the vacuum pump and confirm that the gauge needle does not move approximately 5 minutes after turning off the vacuum pump 5 Disconnect the charge hose from the vacuum pump 22 2 Refrigerant charging EN Indoor unit Y TZAN Liquid side uem oom M ec 2 way valve GAR f gt Open m H EGG 3 way valve ITT h r N 4 a EX md iH Outdoor unit Charging cylinder Electronic scale Procedure 1 Connect the charge hose to the charging cylinder open the 2 way valve and the 3 way valve Connect the charge hose which you disconnected from the vacuum pump to the valve at the bottom of the cylinder If the refrigerant is RA10A make the cylinder bottom up to ensure liquid charge 2 Purge the air from the charge hose Open the valve at the bottom of the cylinder and press the check valve on the charge set to purge the air be careful of the liquid refrigerant 3 Put the charging cylinder onto the electronic scale and record the weight 4 Open the valves Low side on the charge set and charge the system with liquid refrigerant If the system cannot be charge with the specified amount of refrigerant or can be charged with a little at a time approximately 150g each tim
30. witch are determined by the maximum current indicated on the nameplate which located on the side panel of the unit Please refer to the nameplate before selecting the cable fuse and switch 14 6 3 Pipe length and the elevation The pipe length and refrigerant amount Standard Max Additional Capacity gth Elevation refrigerant 38KCD109313G 38KCD109313G 09 52 6 5 42KCD112313G 38KCD112313G 1 2 1 4 42KCD118313G 38KCD118313G 012 7 06 35 5 8 3 8 42KCD124313G 38KCD124313G Indoor unit Indoor unit e Oil trap Outdoor unit Outdoor unit Caution The capacity test is based on the standard length and the maximum permissive length is based on the System reliability The oil trap should be installed per 5 7 meters 15 6 4 Installation for the first time Air and moisture in the refrigerant system have undesirable effects as below Pressure in the system rises Operating current rises Cooling efficiency drops Moisture in the refrigerant circuit may freeze and block capillary tubing Water may lead to corrosion of parts in the refrigerant system Therefore the indoor units and the pipes between indoor and outdoor units must be leak tested and evacuated to remove gas and moisture from the system Gas leak check Soap water method Apply soap water or a liquid neutral detergent on the indoor unit connections or outdoor unit connections by a soft brush to check for leak
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