Mission 3D Inverter Series
Contents
1. 19 6 Operation et Mn 21 y redes metn 22 EE o omm 22 oe NUNC 22 A 23 4OperatonModesandFunctlons 24 Bx 28 8 1 Indoor Unit Error Display 29 9S 2 EEE 30 1 Precaution 1 1 Safety Precaution B prevent injury to the user or other people and property damage the following instructions must be followed B Incorrect operation due to ignoring instruction will cause harm or damage B Before service the unit be sure to read this service manual at first 1 2 Warning Installation B Do not use a defective or underrated circuit breaker Use this appliance on a dedicated circuit There is risk of fire or electric shock B Forelectrical 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 m Always ground the product There is risk of fire or electric shock B Install the panel and the cover of control box securely There is risk of fire of electric shock m Always install a dedicate2. 8 2 5 Open circuit or short circuit of temperature sensor diagnosis and solution E5 Malfunction decision If the sampling voltage is lower than 0 06V or higher than 4 94V conditions the LED will display the failure Supposed causes e Wiring mistake e Sensor faulty Trouble shooting Check the connection between temperature Correct the connection sensor and PCB 1 Measure the resistance value of the sensor Yes Y Replace indoor or outdoor main PCB Hepalce the sensor EE L MUL METER 8 2 6 IPM malfunction or IGBT over strong current protection diagnosis and solution PO Error Code Malfunction decision When the voltage signal that IPM send to compressor drive chip conditions is abnormal the display LED will show PO and will turn off Supposed causes Wiring mistake IPM malfunction Outdoor fan ass y faulty Compressor malfunction Outdoor PCB faulty Trouble shooting Check the wiring between main PCB Ves Correct the connection or replace and compressor the wires and connectors No Check the IPM No Replace the IPM board or replace the main PCB Yes Please refer to the solution of Fan heck th f h Check the outdoor fan and the No Speed Has Been Out Of Control outdoor unit ventilation
3. e 7 4 2 Cooling Mode 7 4 2 1 Compressor running rules When T1 Ts lt 2 C the compressor will stop when 1 gt 0 5 the compressor will be activated When the AC run in mute mode the compressor will run with low frequency When the current is more than setting value the current protection function will be activated and the compressor will stop 7 4 2 2 Outdoor fan running rules The outdoor unit will be run at different fan speed according to T4 7 4 2 3Indoor fan running rules In cooling mode indoor fan runs all the time and the speed can be selected as high medium low and auto When the setting temp is reached if the compressor stop running indoor fan motor will run in Minimum speed or setting speed The indoor fan is controlled as below T1 Td C F Actual fan speed speed H H H G M M M Z D Mow G The auto fan acts as below rules 11 7 4 2 4 Condenser temperature protection Decrease When condenser temperature temp is more than setting value the compressor will stop 7 4 2 5 Evaporator temperature protection When Evaporator temperature temp is less than setting value the compressor will stop 7 4 3 Heating Mode 7 4 3 1 Compressor running rules When T1 Is gt lt AT the compressor will stop when T1 TS lt AT 1 5 IY the comp
4. malfunction Yes v Check the compressor resistance gt Replace the compressor values Yes Y Replace the outdoor main PCB gt gt IPM continuity check Turn off the power let the large capacity electrolytic capacitors discharge completely and dismount the IPM Use a digital tester to measure the resistance between P and UVWN UVW and Digital tester Normal resistance value Digital tester Normal resistance value Red Black Red Black V Several MQ Several MQ W 8 2 7 Over voltage too low voltage protection diagnosis and solution P1 Error Code Malfunction decision conditions An abnormal voltage rise or drop is detected by checking the specified voltage detection circuit Supposed causes e Power supply problems e System leakage or block e faulty Trouble shooting 4 Check the power supply Yes Check the connections wires Yes Y Check the voltage between and N Yes v Stop the unit No Correct the connections or replace the wires No Replace the IPM board Check the reactor gt Yes v Replace the reactor Replace outdoor main PCB 8 2 8 High temperature protection of compressor top diagnosis and solution P2 NP Malfunction decision If the s
5. 8 2 4 Fan speed has been out of control diagnosis and solution E3 Malfunction decision When indoor fan speed keeps too low 300RPM for certain time conditions the unit will stop and the LED will display the failure Supposed causes Wiring mistake Fan ass y faulty Fan motor faulty PCB faulty Trouble shooting NO v The unit operates normally Power off then restart the unit 2 minutes later Yes Y off the power supply No Find out the cause and have Rotate the fan by hand it solved Check the wiring of fan No gt Correct the connections motor Yes v Measure the voltage for the fan motor from the main gt Replace PCB Yes Replace the fan motor No Index1 1 Indoor or Outdoor DC Fan Motor control chip is in fan motor Power on and when the unit is in standby measure the voltage of pin1 pin3 pin4 pin3 in fan motor connector If the value of the voltage is not in the range showing in below table the PCB must has problems and need to be replaced DC motor voltage input and output NO Color Signal Voltage 1 Red VsVm 280V 38V _ Vee 14 17 5V Vsp 0 5 6V 2 Outdoor DC Fan Motor control chip is in outdoor PCB Power on and check if the fan can run normally if the fan can run normally the PC
6. Swing Turbo or Silence feature is cancelled Dispalys at under deforsting operation Dispalys i when anti cold air feature is activated under heating mode Dispalys SC during self clean operation if aplicable Dispalys under 8 C heating operation if aplicable When ECO function optional is actived the BE illuminates gradually one by one as E gt C gt set temperatures E In one second interval N WIFI control display optional Displays when the WIFI control feature is acticated Not available when the unit does not have this function NOTE A guide on using the infrared remotr is included in this literature package 7 3 Protection 7 3 1 Three minutes delay at restart for compressor Less than 1 minute delay for the 1 time stand up and 3 minutes delay for others 7 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 7 3 3 Temperature protection of compressor discharge Compressor discharge temp T5 gt 115 C for 5s compressor stops 7 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 7 3 5 Inverter module protection The Inverter module has a protection function about current voltage and temperature If these protections happen t
7. Discharging position Discharging period 10 seconds or more Plug of 4 soldering 174 iron nm A 7 1 HT gt i VT 4 Note picture above is only reference plug of your side be different 8 1 Indoor Unit Error Display lamp Indoor room temperature sensor 11 open circuit or short circuit Evaporator coil temperature sensor 2 open circuit or xx 6 times E5 j SA P P short circuit x 7 times Refrigerant leakage detection Outdoor ambient temperature sensor 14 open circuit or 2 times 1 ee a short circuit Condenser coil temperature sensor open circuit or 5 3 times F2 X short circuit l Compressor discharge temperature sensor T5 open Ye 4 times F3 PE d p p circuit or short circuit 5 times Outdoor unit EEPROM parameter error 6 times Outdoor fan speed has been out of control xx 1 times PO IPM malfunction or IGBT over strong current protection w 2 times Over voltage or over low voltage protection High temperature protection of compressor to xx 3 times po 19 diagnosis and solution X 5 times Inverter compressor drive error O light X off X flash 8 2 Trouble shooting 8 2 1 EEPROM parameter error diagnosis and solution E0 F4 E0 F4 Indoor or outdoor PCB main chip does not receive feedback from EEPROM chip e Installation mistake e PCB faulty Trouble shooting Pow
8. indicating 0 3 to 0 5 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 Outdoor unit 274 T Y Gas side A TR AT A OPEN j 7 Ni 2 lt C N U 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 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 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 sure to use a hexagonal wrench to operate the valve stems 7 Mount the
9. 028482 10 207184 50 345097 eo 085248 130 027770 16 15348 56 27383 96 070944 136 0296 17 146181 57 263682 97 0 68844 137 0 28338 18 139180 58 253973 98 0668 138 05276 19 13263 59 244677 99 0 64862 139 022281 2 Compressor checking Measure the resistance value of each winding by using the tester a Input Terminal Blue Y 5 2 Blue 1 2 Red 2 N Black 3 0 Position Resistance Value J ASN98D22UFZ ASM135D23UFZ DA200S2C 10MT Blue Red 1 570 1 750 0 510 Blue Black 20 C 68 F 20 C 68 F 20 C 68 F Hed Blue
10. and the 3 way valve Connect the charge hose which you disconnected from the vacuum pump to the valve at the bottom of the cylinder If the refrigerant is R410A make the cylinder bottom up to ensure liquid charge 2 Purge the air from the charge hose Open the valve at the bottom of the cylinder and press the check valve on the charge set to purge the air be careful of the liquid refrigerant 3 Put the charging cylinder onto the electronic scale and record the weight 4 Open the valves Low side on the charge set and charge the system with liquid refrigerant If the system cannot be charge with the specified amount of refrigerant or can be charged with a little at a time approximately 150g each time operating the air conditioner in the cooling cycle however one time is not sufficient wait approximately 1 minute and then repeat the procedure 5 When the electronic scale displays the proper weight disconnect the charge hose from the 3 way valve s service port immediately If the 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 Use torque wrench to tighten the service port cap to a torque of 18N m Be sure to check for gas leakage 6 Operation Characteristics Cooling operation Heating operation Drying operation Temperature Room temperature 1409320 0 C 30 C
11. cooling mode 5 Open the valves Low side on the charge set and charge the system with liquid refrigerant 6 When the electronic scale displays the proper weight refer to the gauge and the pressure of the low side disconnect the charge hose from the 3 way valve s service port immediately and turn off the air conditioner before disconnecting the hose 7 Mount the valve stem caps and the service port Use torque wrench to tighten the service port cap to a torque of 18N m Be sure to check for gas leakage 5 6 Re installation while the indoor unit need to be repaired 1 Collecting the refrigerant into the outdoor unit p n p ERA Procedure 1 Confirm that both the 2 way and 3 way valves are set to the opened position 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 5 Operate the air conditioner at the cooling cycle and stop it when the gauge indicates 0 1 6 Set the 3 way valve to the closed position immediately Do this quickly so that the gauge ends up
12. outdoor units confirm that both the 2 way and 3 way valves are set to the closed position 2 Connect the charge hose with the push pin of handle lo to the 3 way valves gas service port 3 Connect the charge hose of handle hi connection to the vacuum pump 4 Fully open the handle Lo of the manifold valve 5 Operate the vacuum pump to evacuate 6 Make evacuation for 30 minutes and check whether the compound meter indicates 0 1Mpa If 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 and stop the operation of the vacuum pump Confirm that the gauge needle does not move approximately 5 minutes after turning off the vacuum pump 7 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 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 chargi
13. tele 365 MOF2 24HFN1 QRDOGW Air inlet Air inlet MOF2 24HFN1 QRDOGW 4 Refrigerant Cycle Diagram INDOOR OUTDOOR CHECK VALVE LIQUID SIDE _ Heating Model only 4 00000 2 WAY VALVE p CAPILIARY TUBE HEAT HEAT EXCHANGE EXCHANGE EVAPORATOR CONDENSER T1 Room temp sensor 2 Evaporator temp sensor mM GAS SIDE i s Dld Dd 7 4 VALVE VALVE ACCUMULATOR 4 COOLING COMPRESSOR 4 HEATING 5 Installation Details 5 1 Wrench torque sheet for installation 012 7 3500 357kgf cm 3600 367kgf cm 15 9 4500 459kgf cm 4700 479kgf cm 6500 663kgf cm 6700 683kgf cm 5 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 switch 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 5 3 Pipe length and the elevation The pipe length and refrigerant amount Standard Max Additional length Elevation refrigerant MOBO 1 09HFN1 QRDOGW 09 52 06 35
14. 10 62 F 90 F 32 F 86 F 50 F 90 Outdoor temperature 0C 50 C 20 C 30 C 0 C 50 C 32 F 122 TF 4 F 86T 32 F 122 15C 50 C 5 F 122 T 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 7 Electronic function 7 1 Abbreviation T1 Indoor room temperature T2 Coil temperature of evaporator T3 Coil temperature of condenser T4 Outdoor ambient temperature T5 Compressor discharge temperature 7 2 Display function 7 2 1 Icon explanation on indoor display board 2 Digital display Displays the temperature settings when the air conditioner is operational Displays the room temperature in FAN mode Displays the self diagnostic codes Dispalys for three seconds when Timer ON Fresh Swing Turbo or Silence feature 15 activated Dispalys OF for three seconds when Timer OFF is set Dispalys OF for three seconds when Fresh
15. 7 4 3 5 Evaporator coil temperature protection Decrease ERN When evaporator temperature temp is more than the setting protection value the compressor will stop 7 4 4 Auto mode This mode can be chosen with remote controller and the setting temperature can be changed between 17 C 30 C In auto mode the machine will choose cooling heating or fan only mode according to AT AT 11 Ts T1 Ts Cooling Fan only Heating 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 certain time and then choose mode according to T1 Ts If the setting temperature is modified the machine will choose running function again 7 4 5 Drying mode Indoor fan speed is fixed at breeze and can t be changed The louver angle is the same as in cooling mode All protections are active and the same as that in cooling mode 7 4 6 Forced operation function Forced cooling mode The compressor and outdoor fan keep running and the indoor fan runs at low speed After running for 30 minutes AC will turn to auto mode with 24 C setting temperature Forced auto mode The action of forced auto mode is the same as normal auto mode with 24C setting temperature When AC receives signals such as switch on switch off timer on timer of
16. 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 B Keep level 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 could cause product malfunction or inefficient operation Operational m Do not expose the skin directly to cool air for long time Do not sit in the draft B Do not use the product for special purposes such as preserving foods works of art etc It is
17. B must has problems and need to be replaced If the fan can t run normally measure the resistance of each two pins If the resistance is not equal to each other the fan motor must have problems and need to be replaced otherwise the PCB must has problems and need to be replaced 3 Indoor AC Fan Motor Power on and set the unit running in fan mode at high fan speed After running for 15 seconds measure the voltage of pin1 and pin2 If the value of the voltage is less than 100V 208 240V power supply or 50V 115V power supply the PCB must has problems and need to be replaced 8 2 4 Refrigerant Leakage Detection diagnosis and solution EC Malfunction decision Define the evaporator coil temp T2 of the compressor just starts conditions running as Tcool In the beginning 5 minutes after the compressor starts up if T2 lt Tcool 2 C does not keep continuous 4 seconds and this situation happens 3 times the display area will show EC and AC will turn off Supposed causes e 2 sensor faulty e Indoor PCB faulty e System problems such as leakage or blocking Trouble shooting Power off then restart the unit 2 minutes later Yes Y Check cool air blowing out Yes Chedet p sensor from indoor air outlet No Yes Check leakage of system Replace indoor PCB No E Repair the leakage and v recharge the refrigerant check blocklng of system and clear the blocking
18. MSMBBU 12HRFN1 QRDOGW a MOBO 1 12HFN1 QRDOGW 9 52 6 35 MSMBCU 18HRFN1 QRDOGW 1 2 1 4 MOBO 1 18HFN1 QRDOGW 12 7 6 35 MSMBDU 24HRFN1 QRDOGW 5 8 3 8 MOF2 24HFN1 QRDOGW 015 9 9 52 Indoor unit Outdoor unit Caution The capacity test is based on the standard length and the maximum permissive length is based on the system reliability 5 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 or heating efficiency drops Moisture in the refrigerant circuit may freeze and block capillary tubing Water may lead to corrosion of parts in the refrigerant system Therefore the indoor units and the pipes between indoor and outdoor units must be leak tested and evacuated to remove gas and moisture from the system 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 leakage of the connecting points of the piping If bubbles come out the pipes have leakage 1 Air purging with vacuum pump Indoor unit ray iis side Outdoor unit Two v 24 wi 000 EN side Three way valve Manifgld valve int Compound mete 0 1 Handle Lo B Handle Hi Charge hose Charge hose Vacuum pump E 1 Completely tighten the flare nuts of the indoor and
19. a consumer air conditioner not a precision refrigerant system There is risk of damage or loss of property B Do not block the inlet or outlet of air flow B Use a soft cloth to clean Do not use harsh detergents solvents etc There is risk of fire electric shock or damage to the plastic parts of the product B Do not touch the metal parts of the product when removing the air filter They are very sharp B not 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 15 operated B Do not drink the water drained from the product B Use a firm stool or ladder when cleaning or maintaining the product Be careful and avoid personal injury B the all batteries in the remote control with new ones of the same type Do not mix old and new batteries or different types of batteries There is risk of fire or explosion B Do not recharge or disassemble the batteries Do not dispose of batteries in a fire They may burn of explode m Iftheliquid from the batteries gets onto your skin or clothes wash it well with clean water Do not use the remote of the batteries have leaked 2 Function Model Names of Indoor O
20. ampling voltage is not 5V the LED will display the failure conditions Supposed causes Power supply problems System leakage or block PCB faulty Trouble shooting Check the air flow system Y Clear up the air inlet and outlet or the heat i i es of indoor and outdoor units exchanger of indoor and outdoor units No Power off then restart the unit 10 minutes later Yes Check if the temperature No Check the overload Nien oneri Gerli of compressor protector Yes Yes Measure the resistance between the two ports of Replace the OLP Check refrigerant system the OLP Is it zero Yes Yes Replace the outdoor control PCB 8 2 9 Inverter compressor drive error diagnosis and solution P4 Error Code Malfunction decision An abnormal inverter compressor drive is detected by a special conditions detection circuit including communication signal detection voltage detection compressor rotation speed signal detection and so on Supposed causes Wiring mistake IPM malfunction Outdoor fan ass y faulty Compressor malfunction Outdoor PCB faulty Trouble shooting Check the wiring between main PCB Correct the connection replace es and compressor the wires and connectors Y Check the IPM No Replace the IPM board or replace the main PCB Ye
21. d 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 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 Be caution when unpacking and installing the product edges could cause injury be especially careful of the case edges and the fins on the condenser and evaporator B Forinstallation always contact the dealer or an authorized service center B Do not install the product on a defective installation stand B Besurethe installation area does not deteriorate with age If the base collapses the air conditioner could fall with it causing property damage product failure and personal injury B Do not let the air conditioner run for a long time when the humidity is very high and a door or a window is left open B Take to ensure that power cable could not be pulled out or damaged during operation There is risk of fire or electric shock B Do not place anything on the power cable There is risk of fire or electric shock B Do not plug or unplug the power supply plug during operation There is risk of fire or electric shock B Do not touch operation the product with wet hands B Do not place a heat
22. er off then restart the unit 2 minutes later Yes Replace the indoor outdoor main PCB EEPROM a read only memory whose contents can be erased and reprogrammed using a pulsed voltage For the location of EEPROM chip please refer to the below photos gt Indoor PCB Outdoor PCB Note The two photos above are only for reference it s may be not same totally with the ones on your side 8 2 2 Indoor outdoor 5 communication diagnosis and solution E1 D _ Malfunction decision Indoor unit does not receive the feedback from outdoor unit during conditions 110 seconds and this condition happens four times continuously Supposed causes e Wiring mistake e Indoor or outdoor PCB faulty Trouble shooting Power off then restart the unit 2 minutes later Yes Y Measure Vs is it positive fluctuation Vs is the voltage between S and N of outdoor unit Red pan S Black Yes Y Check the outdoor wiring connection Yes Check the indoor wiring connection Yes Check whether reactor Replace the reactor is normal Replace the indoor main PCB Power on 15 the error extinguished Yes No Replace the outdoor PCB Power on Is the error Replace the outdoor main PCB extinguished No Replace the indoor main PCB
23. er or other appliance near the power cable There is risk of fire and electric shock B Do not allow water to run into electrical parts It may cause fire failure of the product or electric shock 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 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 if strange sounds or smoke comes from product turn the breaker off or disconnect the power supply cable There is risk of electric shock or fire B Stop operation and close the window in storm or hurricane If possible remove the product from the window before the hurricane arrives There is risk of property damage failure of product or electric shock m 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 m caution that water could not enter the product There is risk of fire electric shock or product damage B Ventilate the product from time to time when operating it together with a stove etc There is risk of fire or electric shock
24. f mode setting fan speed setting sleeping mode setting follow me setting it will quit the forced operation 7 4 7 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 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 7 4 8 8 C Heating optional When the compressor is running the indoor fan motor will run without anti cold air function When the compressor is off the indoor fan motor is 8 Troubleshooting Safety Electricity power is still kept in capacitors even the power supply is shut off Do not forget to discharge the electricity power in capacitor Electrolytic Capacitors HIGH VOLTAGE CAUTION For other models please connect discharge resistance 1000 40W or soldering iron plug between terminals of the electrolytic capacitor on the contrary side of the outdoor PCB
25. from the charge hose Open the valve at the bottom of the cylinder and press the check valve on the charge set to purge the air be careful of the liquid refrigerant 3 Put the charging cylinder onto the electronic scale and record the weight 4 Operate the air conditioner at the cooling mode 5 Open the valves Low side on the charge set and charge the system with liquid refrigerant 6 When the electronic scale displays the proper weight refer to the table 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 torque of 18N m Be sure to check for gas leakage 5 5 Adding the refrigerant after running the system for many years 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 R410A make the cylinder bottom up to ensure liquid charge 2 Purge the air from the charge hose Open the valve at the bottom of the cylinder and press the check valve on the charge set to purge the air be careful of the liquid refrigerant 3 Put the charging cylinder onto the electronic scale and record the weight 4 Operate the air conditioner at the
26. he corresponding code will display on indoor unit and the unit will stop working 7 3 6 Indoor fan delayed open function When the unit starts up the louver will be active immediately and the indoor fan will open 7s later If the unit runs in heating mode the indoor fan will be also controlled by anti cold wind function 7 3 7 Compressor preheating functions Preheating permitting condition When T4 outdoor ambient temperature lt 3 C the preheating function will be activated 7 3 8 Sensor protection at open circuit and breaking disconnection When there s only one temperature sensor in malfunction the air conditioner will keep working but show the error code in case of any emergency use When theres more than one temperature sensor in malfunction the air conditioner will stop working 7 3 9 Refrigerant leakage detection This function is only active in cooling mode It can better prevent the compressor being damaged by refrigerant leakage or compressor overload Open condition When compressor is active the value of the Coil temperature of evaporator T2 has no change or very little change 7 4 Operation Modes and Functions 7 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 T1
27. idea Mission 3D Inverter Series Service Manual 2014 MBSEU A 1412 so o MM PLU LL ey i A amp isi felan 4 fA T T T ii nen ENIM T oee aj SG XII 2 4 ue 00 VCI s tive DI 922 a lt 5 le Dd c 3 3 EZAN LOE ete e ee 3 2 FUNGUO ENE 6 xig E 7 Kg UNI NOC DM DM M ETTA OES TE 7 0 2 eme 10 4 Diagram er T 13 SINSTAMALION a ai taa alla a aaa 14 5 1 Wrenchtorguesheetforinstallatlon een 14 5 2 COMMEGIUING the __ ____ ___ ___ RERE 14 SS TNE ele 15 OASIS ORTE ESES 16 5 5 Adding the refrigerant after running the system for many years 17 5 6 Re installation while the indoor unit need to be repaired 18 5 7 Re installation while the outdoor unit need to be repaired
28. ng 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 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 3 Adding the refrigerant if the pipe length gt 5 Outdoor unit 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
29. ressor will be on AT is the programmed parameter of temperature compensation When the AC run in mute mode the compressor will run with low frequency When the current is more than setting value the current protection function will be activated and the compressor will stop 7 4 3 2 Outdoor fan running rules The outdoor unit will be run at different fan speed according to T4 7 4 3 3 Indoor fan running rules When the compressor is on the indoor fan can be set to high med low auto mute When indoor unit coil temp is low the anti cold air function will start and indoor fan motor will run at low speed the speed cant be changed when the temp is lower than setting value the indoor fan motor will stop When the indoor temp reaches the setting temp the compressor will stop the indoor fan motor will run at the minimum speed or setting speed The anti cold air function is valid The indoor fan is controlled as below Setting fan Actual fan speed speed H H H G L L L D Auto fan action in heating mode T1 Td AT 7 4 3 4Defrosting mode AC will enter the defrosting mode according to the value of temp of and the value range of temp change of T3 and also the compressor running time During the defrosting mode the compressor keep running indoor and outdoor motor will stop defrost lamp of the indoor unit will be lighted JF Will be displayed
30. s v Please refer to the solution of Fan Check the outdoor fan and the gt Speed Has Been Out Of Control outdoor unit ventilation malfunction Yes Y Check the compressor resistance gt Replace the compressor values Yes Y Replace the outdoor main PCB parts check 1 Temperature sensor checking Disconnect the temperature sensor from PCB measure the resistance value with a tester ONS 000 Tester Temperature Sensors Room 11 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 Appendix 1 Temperature Sensor Resistance Value Table c Kohm 11 5000 7 23 109731 63 21124 103 057683 10 4736 5 60 _ 63 104736 64 203732 104 o 0 56088 15 66 _ A NN LES 14 13 12 1 48481 e 35 2024 5 17519 80 117393 0 35982 33 3269 4 96392 1 13604 0 35042 31 5635 4 76253 1 09958 0 3413 3 4 28 3459 4 38736 1 03069 0 32390 O1 5 26878 45 421263 85 099815 125 _ 031559 6 254954 46 404589 86 096608 126 030754 8 225662 48 3734 6 88 090753 128 029216 21804 49 35802 89 087950 129
31. utdoor Units MSMBAU O9HRFN1 QRDOGW MOBO1 09HFN1 QRDOGW 3D inverter MSMBBU 12HRFN1 QRDOGW MOBO1 12HFN1 QRDOGW MSMBCU 18HRFN1 QRDOGW MOBO1 18HFN1 QRDOGW MSMBDU 24HRFN1 QRDOGW MOF2 24HFN1 QRDOGW 3 Dimension 3 1 Indoor Unit For MSMBAU O9HRFN1 QRDOGW Indoor unit outline Left rear side refrigerant n rear side pipe hole 65 n pipe For MSMBBU 12HRFN1 QRDOGW Indoor unit 182 Left rear side lt es Right rear side refrigerant IGF Ot refrigerant pipe pipe hole 65 810 hole 9 D 65 For MSMBCU 18HRFN1 QRDOGW Indoor unit 581 00 a outline Left rear side ll 144 Is ht rear side refrigerant von A OS Ri ipe hole 6657 980 Yre MSMBDU 24HRFN1 QRDOGW Indoor unit 581 Hi 151 8 7 a Ord aed Right rear side oipe hole 657 ____ 1090 SE pipe 3 2 Outdoor Unit More than 30cm More than 60cm Service space 44 11 For MOB01 09HFN1 QRDOGW MOBO1 12HFN1 QRDOGW MOBO1 18HFN1 QRDOGW rS LUAM r l Ley m SM TIS NN UA e NS e a n m fi J rp he MN A ARSE gn
32. 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 5 7 Re installation while the outdoor unit need to be repaired 1 Evacuation for the whole system Indoor unit YNZ Liquid side 254 m Vacuum pump 6 A c gt N Procedure 1 Confirm that both the 2 way and 3 way valves are set to the opened position 2 Connect the vacuum pump to 3 way valve s service port 3 Evacuation for approximately one hour Confirm that the compound meter indicates 0 1Mpa 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 2 Refrigerant charging Indoorunit Liquid side c Outdoor unit di 7 P d 1 NES VW 2 way valve HYS oe H RI fi T 1 Gas side gt 1 VAN d t 1 n 7 9 wayvaWe N T e Pus KP za ad Lo Hi M EDI Charging NM p cylinder VA RES U x NC 5 CLOSE nel gt lt yo Electronic scale Procedure 1 Connect the charge hose to the charging cylinder open the 2 way valve
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